OFFICE OF PUBLIC WORKS FLOOD STUDIES UPDATE … Package 2_2-Frequency An… · 1959 12.30 Mean...
Transcript of OFFICE OF PUBLIC WORKS FLOOD STUDIES UPDATE … Package 2_2-Frequency An… · 1959 12.30 Mean...
OFFICE OF PUBLIC WORKS
FLOOD STUDIES UPDATE PROGRAMME
WORK-PACKAGE WP-2.2 “FREQUENCY ANALYSIS”
Appendix 4
Department of Engineering Hydrology &
The Environmental Change Institute
National University of Ireland, Galway
September 2009
Appendix 4A1
A1 A (km2)= 234.00 N= 48
Year AMF(m3
/s)
1957 12.34 Mean 15.856 M100 15.856 L1 15.856 L-Cv 0.113
1958 21.07 Median 15.390 M110 8.825 L2 1.795 L-Skew 0.089
1959 15.39 Std.Dev. 3.195 M120 6.210 L3 0.161 L-Kur 0.074
1960 14.20 CV 0.202 M130 4.819 L4 0.134
1961 15.70 HazenS. 0.812
1962 13.39
1963 18.84
1964 19.49
1965 18.14
1966 18.84
1967 13.39
1968 15.39
1969 13.56
1970 10.94
1971 13.39
1972 10.90
1973 13.31
1974 14.37
1975 11.29
1976 19.13
1977 11.68
1978 26.36
1979 16.91
1980 17.14
1981 17.04
1982 17.04
1983 19.35
1984 11.98
1985 12.49
1986 14.20
1987 15.16
1988 15.45
1989 12.74
1990 14.88
1991 19.03
1992 12.87
1993 14.88
1994 16.89
1995 19.99
1996 15.16
1997 15.73
1998 14.88
1999 17.49
2000 19.51
2001 19.35
2002 19.67
2003 11.98
2004 18.10
FA
NE
CA
TC
HM
EN
T6011 RIVER FANE @ MOYLES MILL
Moments PWM L-Moments
Annual Maximum Floods 1957 to 2004.(no missing years)
6011 RIVER FANE @ MOYLES MILLEV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
) winter peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1. Medium skewness
2. No summer peak was observed in the AM series
3.Linear Score (subjective) :EV1=4, LO2=2, LN2=3 *For Explanation of Scores and Codes see in Introductory Page
4.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
A1 A (km2)= 307.00 N= 30
Year AMF(m3
/s)
1975 18.07 Mean 27.808 M100 27.808 L1 27.808 L-Cv 0.157
1976 20.36 Median 27.365 M110 16.090 L2 4.372 L-Skew 0.019
1977 15.76 Std.Dev. 7.475 M120 11.469 L3 0.084 L-Kur 0.012
1978 40.00 CV 0.269 M130 8.943 L4 0.052
1979 37.70 HazenS. 0.100
1980 37.20
1981 35.23
1982 24.18
1983 29.43
1984 33.78
1985 22.80
1986 19.64
1987 26.84
1988 18.76
1989 32.61
1990 30.09
1991 27.05
1992 21.10
1993 35.71
1994 29.65
1995 41.84
1996 22.61
1997 34.26
1998 27.47
1999 18.58
2000 34.74
2001 23.38
2002 31.91
2003 16.24
2004 27.26
GL
YD
E &
DE
E C
AT
CH
ME
NT
6013 RIVER DEE @ CHARLEVILLE WEIR
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing years)
6013 RIVER DEE @ CHARLEVILLE WEIREV1
50010050251052
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1. Low positive skewness
2. The 4th highest peak comes out as a summer peak
3.Linear Score(subjective):EV1=2, LO2=3, LN2=4 *For Explanation of Scores and Codes see in Introductory Page
4.Shape Codes(subjective):EV1=D1, LO2=S1, LN2=L2
A1 A (km2)= 270.00 N= 30
Year AMF(m3/s)
1975 15.49 Mean 22.557 M100 22.557 L1 22.557 L-Cv 0.149
1976 19.86 Median 21.460 M110 12.956 L2 3.355 L-Skew 0.224
1977 15.30 Std.Dev. 6.045 M120 9.321 L3 0.751 L-Kur 0.121
1978 39.40 CV 0.268 M130 7.357 L4 0.406
1979 24.64 HazenS. 1.306
1980 24.13
1981 32.39
1982 23.63
1983 30.62
1984 30.62
1985 17.70
1986 18.54
1987 21.23
1988 16.87
1989 25.15
1990 25.15
1991 17.70
1992 16.97
1993 28.63
1994 22.65
1995 33.30
1996 21.84
1997 19.46
1998 15.30
1999 19.86
2000 23.63
2001 20.76
2002 18.12
2003 16.07
2004 21.69
GL
YD
E &
DE
E C
AT
CH
ME
NT
6014 RIVER GLYDE @ TALLANSTOWN
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing years)
6014 RIVER GLYDE @ TALLANSTOWNEV1
2 5 10 25 50 100 500
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=L1, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 176.00 N= 30
Year AMF(m3/s)
1975 12.53 Mean 18.322 M100 18.322 L1 18.322 L-Cv 0.088
1976 16.66 Median 18.690 M110 9.968 L2 1.614 L-Skew -0.071
1977 12.80 Std.Dev. 2.854 M120 6.895 L3 -0.114 L-Kur 0.185
1978 20.04 CV 0.156 M130 5.293 L4 0.299
1979 20.49 HazenS. -0.331
1980 18.21
1981 17.90
1982 16.86
1983 18.74
1984 18.53
1985 18.64
1986 13.91
1987 19.28
1988 17.69
1989 19.06
1990 19.06
1991 19.72
1992 14.97
1993 18.96
1994 19.17
1995 23.46
1996 18.64
1997 16.76
1998 21.04
1999 14.68
2000 23.57
2001 19.61
2002 22.76
2003 14.48
2004 21.44
GL
YD
E &
DE
E C
AT
CH
ME
NT
6025 RIVER DEE @ BURLEY BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing years)
6025 RIVER DEE @ BURLEY BRIDGE EV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Negative skewness
2.Linear Score (subjective) :EV1=2, LO2=4, LN2=3
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 144.00 N= 46
Year AMF(m3/s)
1959 12.30 Mean 13.867 M100 13.867 L1 13.867 L-Cv 0.177
1960 23.89 Median 12.297 M110 8.161 L2 2.456 L-Skew 0.240
1961 10.99 Std.Dev. 4.434 M120 5.949 L3 0.590 L-Kur 0.092
1962 12.30 CV 0.320 M130 4.731 L4 0.227
1963 15.50 HazenS. 1.051
1964 24.12
1965 18.61
1966 15.50
1967 22.99
1968 20.21
1969 10.19
1970 10.33
1971 9.54
1972 8.57
1973 14.16
1974 12.90
1975 9.12
1976 10.69
1977 8.85
1978 22.33
1979 12.60
1980 17.66
1981 18.61
1982 10.33
1983 14.32
1984 14.99
1985 11.44
1986 10.77
1987 16.92
1988 7.51
1989 14.82
1990 17.66
1991 12.90
1992 11.51
1993 18.81
1994 11.96
1995 21.46
1996 10.55
1997 12.00
1998 10.33
1999 10.40
2000 10.48
2001 11.29
2002 14.65
2003 8.95
2004 11.86
GL
YD
E &
DE
E C
AT
CH
ME
NT
6026 RIVER GLYDE @ ACLINT BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1959 to 2004.(no missing years)
6026 RIVER GLYDE @ ACLINT BRIDGEEV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score(subjective):EV1=3, LO2=1, LN2=2
3.Shape Codes(subjective):EV1=S1, LO2=S2, LN2=S2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 153.50 N= 24
Year AMF(m3/s)
1975 7.44 Mean 13.323 M100 13.323 L1 13.323 L-Cv 0.145
1976 15.50 Median 13.189 M110 7.627 L2 1.931 L-Skew 0.135
1977 9.24 Std.Dev. 3.388 M120 5.450 L3 0.261 L-Kur 0.143
1978 16.90 CV 0.254 M130 4.279 L4 0.277
1979 10.30 HazenS. 0.778
1980 11.60
1981 13.60
1982 11.30
1983 12.10
1984 9.18
1985 10.20
1986 11.00
1987 13.46
1988 12.03
1989 11.11
1990 13.18
1991 18.92
1992 13.20
1993 15.51
1994 13.84
1995 19.14
2001 20.93
2002 16.55
2004 13.53
FA
NE
CA
TC
HM
EN
T6070 RIVER MUCKNO L. @ MUCKNO
Moments PWM L-Moments
AMF 1975 to 2005.(missing years:'96-98,99,00,03,05)
6070 RIVER MUCKNO L. @ MUCKNO
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1. The highest peak comes out as a summer peak
2.Linear Score(subjective):EV1=4, LO2=4, LN2=5
3.Shape Codes(subjective):EV1=L2, LO2=L2, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 1610.00 N= 29
Year AMF(m3/s)
1976 133.40 Mean 162.641 M100 162.641 L1 162.641 L-Cv 0.211
1977 108.00 Median 134.800 M110 98.472 L2 34.302 L-Skew 0.206
1978 285.60 Std.Dev. 61.199 M120 72.543 L3 7.066 L-Kur 0.106
1979 245.30 CV 0.376 M130 58.044 L4 3.630
1980 178.50 HazenS. 0.935
1981 108.60
1982 162.20
1983 120.10
1984 155.50
1985 134.80
1986 105.60
1987 126.00
1988 59.00
1989 218.40
1990 123.40
1991 144.60
1992 216.60
1993 131.40
1994 217.50
1995 123.40
1996 88.60
1997 110.50
1998 184.80
1999 130.00
2000 269.90
2001 178.50
2002 297.60
2003 133.40
2004 225.40
7009 RIVER BOYNE @ NAVAN WEIR
Moments PWM L-Moments
BO
YN
E C
AT
CH
ME
NT
Annual Maximum Floods 1976 to 2004.(no missing years)
7009 RIVER BOYNE @ NAVAN WEIR EV1
50010050251052
0
50
100
150
200
250
300
350
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
300
350
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.4
1.6
1.8
2
2.2
2.4
2.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score(subjective):EV1=4, LO2=1, LN2=3
2.Shape Codes(subjective):EV1=L2, LO2=D2X, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 37.00 N= 20
Year AMF(m3/s)
1979 7.43 Mean 5.616 M100 5.616 L1 5.616 L-Cv 0.112
1980 5.41 Median 5.324 M110 3.121 L2 0.626 L-Skew 0.271
1981 4.92 Std.Dev. 1.158 M120 2.213 L3 0.170 L-Kur 0.174
1982 6.37 CV 0.206 M130 1.734 L4 0.109
1983 4.37 HazenS. 1.984
1984 5.91
1985 6.59
1986 4.51
1987 4.99
1988 4.48
1989 4.99
1990 5.05
1991 5.73
1992 6.42
1995 5.41
1996 4.91
1997 5.24
1998 6.38
1999 4.28
2000 8.96
DE
LV
IN C
AT
CH
ME
NT
8002 RIVER DELVIN @ NAUL
Moments PWM L-Moments
AM Floods 1979 to 2000.( missing year '93, 94)
8002 RIVER DELVIN @ NAUL EV1
50010050251052
0
1
2
3
4
5
6
7
8
9
10
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 5001005025105
0
1
2
3
4
5
6
7
8
9
10
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.4
0.5
0.6
0.7
0.8
0.9
1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Linear Score(subjective):EV1=4, LO2=1, LN2=2
2.Shape Codes(subjective):EV1=L2, LO2=U1, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 62.00 N= 11
Year AMF(m3/s)
1980 10.30 Mean 10.375 M100 10.375 L1 10.375 L-Cv 0.564
1984 6.59 Median 6.590 M110 8.114 L2 5.853 L-Skew 0.684
1985 6.77 Std.Dev. 14.657 M120 7.053 L3 4.006 L-Kur 0.650
1986 3.62 CV 1.413 M130 6.419 L4 3.804
1987 6.39 HazenS. 5.427
1988 2.72
1989 6.95
1990 2.08
1991 3.31
1992 53.60
1993 11.80
Bro
ad
Me
ad
ow
Wa
ter
CA
TC
HM
EN
T
8009 RIVER WARD @ BALHEARY
Moments PWM L-Moments
AMF 1979 to 1993.(missing years '79,81-83)
8009 RIVER WARD @ BALHEARY
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
1.7
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1. The highest peak comes out as a summer peak
2.Linear Score(subjective):EV1=1, LO2=1, LN2=2
3.Shape Codes(subjective):EV1=U2, LO2=U2, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 215.00 N= 48
Year AMF(m3/s)
1956 38.57 Mean 38.714 M100 38.714 L1 38.714 L-Cv 0.243
1957 49.90 Median 35.465 M110 24.057 L2 9.400 L-Skew 0.191
1958 35.46 Std.Dev. 17.083 M120 17.904 L3 1.793 L-Kur 0.146
1959 44.61 CV 0.441 M130 14.426 L4 1.374
1960 47.51 HazenS. 1.172
1961 15.48
1962 30.59
1963 25.24
1964 49.90
1965 64.83
1966 54.23
1967 50.51
1968 69.06
1969 21.19
1970 26.10
1971 27.41
1972 34.96
1973 35.46
1974 48.10
1975 20.43
1976 32.50
1977 24.40
1978 62.43
1980 32.02
1981 22.37
1982 38.04
1983 40.71
1984 38.57
1985 48.10
1986 35.46
1987 26.10
1988 9.39
1989 43.48
1990 29.66
1991 27.85
1992 60.74
1993 29.66
1994 48.10
1995 25.24
1996 16.14
1997 21.58
1998 30.13
1999 24.40
2000 81.82
2001 42.36
2002 91.50
2003 27.85
2004 58.09
9001 RIVER RYEWATER @ LEIXLIP
Moments PWM L-Moments
LIF
FE
Y C
AT
CH
ME
NT
Annual Maximum Floods 1956 to 2004.(missing year 79)
9001 RIVER RYEWATER @ LEIXLIPEV1
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.23% of flood peaks come out as summer peaks
2.Linear Score(subjective):EV1=5, LO2=2, LN2=5
3.Shape Codes(subjective):EV1=L1, LO2=U1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 37.00 N= 24
Year AMF(m3/s)
1978 2.86 Mean 7.235 M100 7.235 L1 7.235 L-Cv 0.417
1979 6.47 Median 5.400 M110 5.127 L2 3.019 L-Skew 0.390
1980 8.86 Std.Dev. 5.982 M120 4.118 L3 1.179 L-Kur 0.252
1981 2.21 CV 0.827 M130 3.500 L4 0.762
1982 3.64 HazenS. 2.399
1983 8.68
1984 3.84
1985 4.62
1986 16.60
1987 11.00
1988 5.56
1989 1.26
1990 3.27
1991 4.28
1992 2.37
1993 22.50
1994 9.50
1995 4.95
1996 1.83
1997 5.25
1998 6.18
1999 5.55
2000 23.70
2001 8.66
LIF
FE
Y C
AT
CH
ME
NT
9002 RIVER GRIFFEEN @ LUCAN
Moments PWM L-Moments
Annual Maximum Floods '78 to '01.( no missing years)
9002 RIVER GRIFFEEN @ LUCAN
500100502510520
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 50010050251050
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1. 35% of flood peaks come out as summer peaks
2.Linear Score(subjective):EV1=1, LO2=1, LN2=4
3.Shape Codes(subjective):EV1=S2X, LO2=U2, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 95.20 N= 19
Year AMF(m3/s)
1985 269.00 Mean 70.147 M100 70.147 L1 70.147 L-Cv 0.423
1986 63.50 Median 48.000 M110 49.925 L2 29.704 L-Skew 0.416
1987 33.00 Std.Dev. 60.490 M120 40.294 L3 12.360 L-Kur 0.305
1989 18.60 CV 0.862 M130 34.446 L4 9.048
1990 48.00 HazenS. 3.237
1991 14.20
1992 80.90
1993 110.00
1994 34.70
1995 46.10
1996 18.30
1997 86.50
1998 45.80
1999 32.90
2000 156.00
2001 41.10
2002 58.40
2003 112.00
2004 63.80
LIF
FE
Y C
AT
CH
ME
NT
9010 RIVER DODDER @ WALDRON'S BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1985 to 2004.( missing year 88)
9010 RIVER DODDER @ WALDRON'S BRIDGE EV1
50010050251052
0
50
100
150
200
250
300
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 5001005025105
0
50
100
150
200
250
300
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1. One high outlier is observed
2. 42% of flood peaks are summer peaks
3.Linear Score(subjective):EV1=2, LO2=2, LN2=4 *For Explanation of Scores and Codes see in Introductory Page
4.Shape Codes(subjective):EV1=U2, LO2=U2, LN2=L2
A1 A (km2)= 30.90 N= 24
Year AMF(m3/s)
1980 5.18 Mean 7.871 M100 7.871 L1 7.871 L-Cv 0.213
1981 5.57 Median 7.360 M110 4.773 L2 1.674 L-Skew 0.186
1982 13.50 Std.Dev. 2.931 M120 3.513 L3 0.311 L-Kur 0.068
1983 5.33 CV 0.372 M130 2.805 L4 0.114
1984 5.80 HazenS. 0.953
1985 11.50
1986 5.24
1987 8.53
1988 4.04
1989 4.06
1990 6.30
1991 4.80
1992 14.30
1993 10.10
1994 9.01
1995 7.26
1996 6.52
1997 9.82
1998 9.80
1999 9.04
2001 7.48
2002 12.20
2003 6.07
2004 7.46
CO
AS
TA
L C
AT
CH
ME
NT
10021 RIVER SHANGANAGH @ COMMON'S ROAD
Moments PWM L-Moments
Annual Maximum Floods 1980 to 2004.( missing year 00)
10021 RIVER SHANGANAGH @ COMMON'S ROAD EV1
50010050251052
0
2
4
6
8
10
12
14
16
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
GLO
2 5001005025105
0
2
4
6
8
10
12
14
16
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.5
0.6
0.7
0.8
0.9
1
1.1
1.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.The highest peak come out as a summer peak
2.Linear Score (subjective) :EV1=4, LO2=2, LN2=3
3.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 10.40 N= 18
Year AMF(m3/s)
1981 2.95 Mean 3.839 M100 3.839 L1 3.839 L-Cv 0.233
1982 5.41 Median 3.850 M110 2.367 L2 0.895 L-Skew 0.057
1983 2.52 Std.Dev. 1.526 M120 1.736 L3 0.051 L-Kur 0.061
1984 2.92 CV 0.398 M130 1.378 L4 0.055
1985 5.09 HazenS. 0.364
1986 2.75
1987 4.05
1988 1.80
1989 1.76
1990 3.41
1992 6.89
1993 1.55
1994 4.48
1995 3.85
1996 3.85
1997 5.71
2002 5.72
2003 4.39
CO
AS
TA
L C
AT
CH
ME
NT
10022 RIVER CABINTEELY @ CARRICKMINES
Moments PWM L-Moments
AMF 1981 to 2003.(missing years:'91,98,99,00,01)
10022 RIVER CABINTEELY @ CARRICKMINES
50010050251052
0
1
2
3
4
5
6
7
8
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
1
2
3
4
5
6
7
8
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1. Considerable number of summer peak
2.Linear Score(subjective):EV1=4, LO2=3, LN2=4
3.Shape Codes(subjective):EV1=L2, LO2=L2X, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 1096.00 N= 51
Year AMF(m3/s)
1954 123.70 Mean 83.764 M100 83.764 L1 83.764 L-Cv 0.106
1955 70.5 Median 80.520 M110 46.312 L2 8.859 L-Skew 0.238
1956 80.52 Std.Dev. 16.590 M120 32.702 L3 2.106 L-Kur 0.212
1957 92.82 CV 0.198 M130 25.548 L4 1.878
1958 73.45 HazenS. 1.459
1959 104.78
1960 103.61
1961 62.51
1962 68.11
1963 67.64
1964 108.92
1965 104.78
1966 88.98
1967 92.26
1968 137.38
1969 76.44
1970 71.97
1971 74.94
1972 61.15
1973 80.52
1974 87.90
1975 71.00
1976 77.70
1977 83.12
1978 96.44
1979 78.21
1980 82.08
1981 70.51
1982 85.23
1983 77.70
1984 93.65
1985 77.96
1986 78.47
1987 83.65
1988 59.35
1989 124.34
1990 81.04
1991 74.69
1992 93.09
1993 80.52
1994 110.42
1995 71.97
1996 60.25
1997 77.45
1998 72.96
1999 75.44
2000 89.53
2001 80.00
2002 81.042003 67.642004 83.65
14006 RIVER BARROW @ PASS BRIDGE
Moments PWM L-Moments
BA
RR
OW
CA
TC
HM
EN
T
Annual Maximum Floods 1954 to 2004.(no missing year)
14006 RIVER BARROW @ PASS BRIDGEEV1
500100502510520
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.6
1.7
1.8
1.9
2
2.1
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=L1, LO2=U1, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 115.00 N= 25
Year AMF(m3/s)
1980 13.40 Mean 16.940 M100 16.940 L1 16.940 L-Cv 0.170
1981 11.70 Median 16.200 M110 9.914 L2 2.887 L-Skew 0.219
1982 17.10 Std.Dev. 5.103 M120 7.196 L3 0.632 L-Kur 0.072
1983 16.60 CV 0.301 M130 5.703 L4 0.208
1984 13.20 HazenS. 1.120
1985 15.00
1986 12.10
1987 13.40
1988 10.90
1989 29.30
1990 11.10
1991 13.60
1992 24.50
1993 17.90
1994 26.20
1995 18.70
1996 12.40
1997 15.00
1998 22.10
1999 22.90
2000 17.30
2001 16.20
2002 20.10
2003 11.30
2004 21.50
Ba
rro
w C
AT
CH
ME
NT
14007 RIVER Stradbally @ Derrybrock
Moments PWM L-Moments
Annual Maximum Floods 1980 to 2004.(no missing years)
14007 RIVER Stradbally @ Derrybrock
EV1
50010050251052
0
5
10
15
20
25
30
35
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
5
10
15
20
25
30
35
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 163.00 N= 26
Year AMF(m3/s)
1979 16.30 Mean 12.070 M100 12.070 L1 12.070 L-Cv 0.143
1980 13.10 Median 12.300 M110 6.900 L2 1.731 L-Skew 0.020
1981 9.91 Std.Dev. 3.022 M120 4.894 L3 0.034 L-Kur 0.157
1982 12.30 CV 0.250 M130 3.819 L4 0.272
1983 12.80 HazenS. 0.190
1984 16.10
1985 12.80
1986 10.60
1987 10.80
1988 6.27
1989 18.70
1990 12.30
1991 8.82
1992 16.90
1993 9.47
1994 13.30
1995 8.82
1996 6.82
1997 10.80
1998 13.10
1999 13.30
2000 14.40
2001 12.00
2002 14.10
2003 8.70
2004 11.30
Ba
rro
w C
AT
CH
ME
NT
14011 RIVER Slate @ Rathangan
Moments PWM L-Moments
Annual Maximum Floods 1979 to 2004.(no missing years)
14011 RIVER Slate @ RathanganEV1
50010050251052
0
2
4
6
8
10
12
14
16
18
20
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
16
18
20
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
0.95
1
1.05
1.1
1.15
1.2
1.25
1.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 2415.00 N= 51
Year AMF(m3/s)
1954 193.75 Mean 141.834 M100 141.834 L1 141.834 L-Cv 0.138
1955 99.88 Median 147.981 M110 80.705 L2 19.577 L-Skew 0.036
1956 148.07 Std.Dev. 34.111 M120 57.182 L3 0.697 L-Kur 0.064
1957 114.83 CV 0.240 M130 44.504 L4 1.246
1958 98.02 HazenS. 0.218
1959 111.04
1960 161.76
1961 83.08
1962 118.69
1963 95.83
1964 166.52
1965 177.97
1966 160.19
1967 147.98
1968 173.01
1969 121.31
1970 113.56
1971 124.64
1972 102.09
1973 183.86
1974 150.23
1975 92.58
1976 138.49
1977 145.76
1978 145.76
1979 162.55
1980 107.94
1981 106.72
1982 135.65
1983 139.93
1984 151.73
1985 102.84
1986 148.73
1987 145.76
1988 90.44
1989 216.07
1990 150.23
1991 97.66
1992 199.57
1993 151.73
1994 212.34
1995 150.23
1996 99.86
1997 178.80
1998 183.86
1999 165.72
2000 192.49
2001 151.73
2002 164.132003 109.182004 148.73
14018 RIVER BARROW @ ROYAL OAK
Moments PWM L-Moments
BA
RR
OW
CA
TC
HM
EN
T
Annual Maximum Floods 1954 to 2004.(no missing year)
14018 RIVER BARROW @ ROYAL OAKEV1
50010050251052
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 1660.00 N= 51
Year AMF(m3/s)
1953 115.30 Mean 103.456 M100 103.456 L1 103.456 L-Cv 0.136
1954 156.61 Median 102.408 M110 58.761 L2 14.066 L-Skew 0.092
1955 85.70 Std.Dev. 24.891 M120 41.733 L3 1.289 L-Kur 0.126
1956 102.41 CV 0.241 M130 32.604 L4 1.770
1957 116.24 HazenS. 0.613
1958 69.07
1959 115.31
1960 136.15
1961 64.61
1962 64.08
1963 75.48
1964 124.22
1965 123.40
1966 111.45
1967 121.38
1968 159.95
1969 95.97
1970 89.11
1971 77.56
1972 72.66
1973 115.44
1974 115.44
1975 70.75
1976 98.17
1977 104.74
1978 93.57
1980 73.14
1981 83.21
1982 94.71
1983 97.01
1984 106.58
1985 92.44
1986 112.86
1987 109.06
1988 82.09
1989 162.86
1990 109.06
1991 78.57
1992 149.42
1993 101.72
1994 143.36
1995 91.32
1996 68.79
1997 111.58
1998 110.95
1999 109.06
2000 114.14
2001 97.01
2002 133.142003 73.622004 95.85
14019 RIVER BARROW @ LEVITSTOWN
Moments PWM L-Moments
BA
RR
OW
CA
TC
HM
EN
T
Annual Maximum Floods 1953 to 2004.(missing year '79)
14019 RIVER BARROW @ LEVITSTOWNEV1
50010050251052
0
20
40
60
80
100
120
140
160
180
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
180
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=D1, LO2=S2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 2173.00 N= 52
Year AMF(m3/s)
1953 182 Mean 234.519 M100 234.519 L1 234.519 L-Cv 0.172
1954 192 Median 223.000 M110 137.486 L2 40.454 L-Skew 0.089
1955 149 Std.Dev. 70.272 M120 99.000 L3 3.602 L-Kur 0.053
1956 272 CV 0.300 M130 77.841 L4 2.141
1957 179 HazenS. 0.423
1958 152
1959 167
1960 295
1961 122
1962 162
1963 216
1964 211
1965 261
1966 146
1967 124
1968 298
1969 141
1970 138
1971 183
1972 221
1973 267
1974 223
1975 245
1976 171
1977 273
1978 335
1979 255
1980 191
1981 257
1982 254
1983 299
1984 182
1985 287
1986 223
1987 252
1988 309
1989 379
1990 189
1991 249
1992 176
1993 273
1994 352
1995 350
1996 306
1997 336
1998 264
1999 207
2000 389
2001 188
2002 207
2003 146
2004 350
16011 RIVER SUIR @ CLONMEL
Moments PWM L-Moments
AM Floods 1953 to 2004
SU
IR C
AT
CH
ME
NT
16011 RIVER SUIR @ CLONMEL EV1
500100502510520
50
100
150
200
250
300
350
400
450
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
50
100
150
200
250
300
350
400
450
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=U1, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 397.00 N= 51
Year AMF(m3/s)
1954 76.99 Mean 69.450 M100 69.450 L1 69.450 L-Cv 0.083
1955 64.96 Median 68.977 M110 37.615 L2 5.780 L-Skew 0.002
1956 78.69 Std.Dev. 10.089 M120 26.041 L3 0.009 L-Kur 0.113
1957 68.71 CV 0.145 M130 19.998 L4 0.653
1958 63.39 HazenS. 0.049
1959 71.43
1960 83.87
1961 76.99
1962 60.27
1963 78.69
1964 86.81
1965 88.58
1966 78.12
1967 83.87
1968 92.79
1969 67.63
1970 61.30
1971 68.17
1972 68.98
1973 74.75
1974 74.75
1975 73.08
1976 50.57
1977 70.34
1978 66.83
1979 70.88
1980 64.44
1981 53.73
1982 77.56
1983 83.87
1984 50.57
1985 77.56
1986 59.76
1987 58.99
1988 48.90
1989 74.19
1990 58.74
1991 62.34
1992 67.36
1993 70.34
1994 77.84
1995 64.17
1996 67.09
1997 72.53
1998 72.25
1999 60.27
2000 76.43
2001 61.82
2002 54.722003 58.232004 66.83
25003 RIVER MULKEAR @ ABINGTON
Moments PWM L-Moments
MU
LK
EA
R C
AT
CH
ME
NT
Annual Maximum Floods 1954 to 2004.(no missing year)
25003 RIVER MULKEAR @ ABINGTON EV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=4, LN2=5
2.Shape Codes (subjective) :EV1=L2, LO2=L1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 1207.00 N= 52
Year AMF(m3/s)
1953 96.55 Mean 86.771 M100 86.771 L1 86.771 L-Cv 0.137
1954 147.21 Median 81.911 M110 49.316 L2 11.862 L-Skew 0.140
1955 78.34 Std.Dev. 21.478 M120 35.131 L3 1.660 L-Kur 0.183
1956 103.22 CV 0.248 M130 27.554 L4 2.171
1957 113.50 HazenS. 0.710
1958 76.86
1959 113.04
1960 118.11
1961 58.49
1962 69.02
1963 79.95
1964 114.03
1965 100.24
1966 120.21
1967 109.03
1968 137.21
1969 88.48
1970 68.04
1971 63.19
1972 37.59
1973 84.61
1974 81.91
1975 49.82
1976 87.09
1977 73.30
1978 81.91
1979 76.61
1980 66.84
1981 75.18
1982 75.66
1983 87.84
1984 67.98
1985 79.24
1986 81.42
1987 80.94
1988 61.48
1989 124.19
1990 72.83
1991 90.86
1992 92.13
1993 87.84
1994 115.78
1995 73.77
1996 62.81
1997 81.18
1998 75.66
1999 92.90
2000 89.35
2001 88.342002 81.912003 74.24
2004 104.11
25006 RIVER BROSNA @ FERBANE
Moments PWM L-Moments
BR
OS
NA
CA
TC
HM
EN
T
Annual Maximum Floods 1953 to 2004.(no missing year)
25006 RIVER BROSNA @ FERBANE EV1
50010050251052
0
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 165.00 N= 54
Year AMF(m3/s)
1951 20.01 Mean 17.665 M100 17.665 L1 17.665 L-Cv 0.128
1952 11.10 Median 17.247 M110 9.962 L2 2.258 L-Skew 0.103
1953 16.76 Std.Dev. 3.975 M120 7.056 L3 0.233 L-Kur 0.125
1954 21.95 CV 0.225 M130 5.505 L4 0.283
1955 15.72 HazenS. 0.566
1956 19.85
1957 23.44
1958 19.22
1959 23.94
1960 26.68
1961 15.86
1962 16.91
1963 17.21
1964 24.11
1965 21.95
1966 21.46
1967 19.69
1968 27.03
1969 24.28
1970 16.46
1971 14.61
1972 15.93
1973 20.10
1974 18.16
1975 13.68
1976 16.78
1977 16.66
1978 17.41
1979 17.53
1980 17.28
1981 14.02
1982 18.80
1983 14.02
1984 18.09
1985 25.47
1986 19.15
1987 20.22
1988 17.74
1989 20.23
1990 12.20
1991 15.08
1992 15.56
1993 13.33
1994 19.57
1995 11.32
1996 14.37
1997 15.93
1998 13.33
1999 14.612000 15.812001 12.31
2002 11.05
2003 12.42
2004 17.53
25014 RIVER SILVER @ MILLBROOK BRIDGE
Moments PWM L-Moments
OF
FA
LY
CA
TC
HM
EN
T
Annual Maximum Floods 1951 to 2004.(no missing year)
25014 RIVER SILVER @ MILLBROOK BRIDGEEV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.05
1.1
1.15
1.2
1.25
1.3
1.35
1.4
1.45
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.The 3rd and 4th highest flood come out as summer floods
2.Linear Score (subjective) :EV1=4, LO2=3, LN2=4 *For Explanation of Scores and Codes see in Introductory Page
3.Shape Codes (subjective) :EV1=L2, LO2=U1X, LN2=L2
A1 A (km2)= N/A N= 55
Year AMF(m3/s)
1950 337.02 Mean 413.250 M100 413.250 L1 413.250 L-Cv 0.117
1951 430.53 Median 407.676 M110 230.827 L2 48.404 L-Skew 0.036
1952 267.95 Std.Dev. 84.092 M120 162.241 L3 1.735 L-Kur 0.081
1953 354.80 CV 0.203 M130 125.724 L4 3.926
1954 596.51 HazenS. 0.180
1955 283.79
1956 450.63
1957 363.86
1958 342.90
1959 550.57
1960 457.43
1961 366.90
1962 291.89
1963 440.52
1964 506.49
1965 510.10
1966 369.96
1967 464.29
1968 499.33
1969 363.86
1970 391.74
1971 289.18
1972 245.04
1973 391.74
1974 471.19
1975 305.64
1976 437.18
1977 345.85
1978 401.26
1979 457.43
1980 376.12
1981 394.90
1982 407.68
1983 457.43
1984 348.82
1985 360.82
1986 460.85
1987 499.33
1988 325.43
1989 558.09
1990 481.65
1991 345.85
1992 398.07
1993 437.18
1994 550.57
1995 294.61
1996 437.18
1997 420.66
1998 430.531999 565.672000 478.15
2001 554.32
2002 339.95
2003 342.90
2004 476.40
25017 RIVER SHANNON @ BANAGHER
Moments PWM L-Moments
LW
. S
HA
NN
ON
CA
TC
HM
EN
T
Annual Maximum Floods 1950 to 2004.(no missing year)
25017 RIVER SHANNON @ BANAGHEREV1
50010050251052
0
100
200
300
400
500
600
700
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
100
200
300
400
500
600
700
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=4, LN2=5 *For Explanation of Scores and Codes see in Introductory Page
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=L1
A1 A (km2)= 116.00 N= 52
Year AMF(m3/s)
1953 10.49 Mean 12.143 M100 12.143 L1 12.143 L-Cv 0.163
1954 10.23 Median 11.221 M110 7.060 L2 1.976 L-Skew 0.142
1955 11.48 Std.Dev. 3.488 M120 5.082 L3 0.280 L-Kur 0.062
1956 10.05 CV 0.287 M130 4.001 L4 0.122
1957 8.46 HazenS. 0.571
1958 9.98
1959 9.98
1960 11.02
1961 5.75
1962 9.72
1963 8.64
1964 9.47
1965 6.57
1966 9.30
1967 12.37
1968 17.55
1969 8.64
1970 9.47
1971 9.09
1972 9.57
1973 20.05
1974 15.42
1975 11.09
1976 13.89
1977 13.11
1978 13.70
1979 10.91
1980 13.11
1981 11.53
1982 11.89
1983 15.95
1984 10.40
1985 16.82
1986 17.26
1987 11.80
1988 7.58
1989 18.17
1990 9.90
1991 11.62
1992 7.73
1993 13.11
1994 18.40
1995 11.26
1996 16.17
1997 16.60
1998 15.93
1999 16.82
2000 17.71
2001 11.182002 8.932003 9.09
2004 16.49
25023 RIVER LITTLE BROSNA @ MILLTOWN
Moments PWM L-Moments
LIT
TL
E B
RO
SN
A C
AT
CH
ME
NT
Annual Maximum Floods 1953 to 2004.(no missing year)
25023 RIVER LITTLE BROSNA @ MILLTOWNEV1
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Considerable number of summer peaks
2.Linear Score (subjective) :EV1=2, LO2=2, LN2=2 *For Explanation of Scores and Codes see in Introductory Page
3.Shape Codes (subjective) :EV1=S2, LO2=S2, LN2=S1X
A1 A (km2)= 160.00 N= 31
Year AMF(m3/s)
1972 6.04 Mean 10.155 M100 10.155 L1 10.155 L-Cv 0.167
1973 11.59 Median 10.175 M110 5.925 L2 1.695 L-Skew 0.083
1974 10.81 Std.Dev. 2.977 M120 4.256 L3 0.140 L-Kur 0.145
1975 6.04 CV 0.293 M130 3.349 L4 0.247
1976 8.44 HazenS. 0.572
1977 6.60
1978 11.20
1979 9.47
1980 7.80
1981 8.44
1982 10.43
1985 6.30
1986 8.62
1987 9.36
1988 4.79
1989 13.77
1990 8.04
1991 8.58
1992 7.86
1993 11.46
1994 17.40
1995 10.18
1996 14.10
1997 11.36
1998 11.16
1999 15.10
2000 11.77
2001 12.29
2002 9.98
2003 10.37
2004 15.44
25025 RIVER BALLYFINBOY @ BALLYHOONEY
Moments PWM L-Moments
BA
LL
YF
INB
OY
CA
TC
HM
EN
T
Annual Maximum Floods '72 to '04.(missing years '83,84)
25025 RIVER BALLYFINBOY @ BALLYHOONEYEV1
50010050251052
0
2
4
6
8
10
12
14
16
18
20
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
16
18
20
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.7
0.8
0.9
1
1.1
1.2
1.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=4, LN2=4
2.Shape Codes (subjective) :EV1=L1, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 118.00 N= 43
Year AMF(m3/s)
1962 29.62 Mean 23.323 M100 23.323 L1 23.323 L-Cv 0.158
1963 21.92 Median 22.095 M110 13.506 L2 3.689 L-Skew 0.046
1964 29.06 Std.Dev. 6.513 M120 9.647 L3 0.170 L-Kur 0.126
1965 18.55 CV 0.279 M130 7.556 L4 0.465
1966 27.40 HazenS. 0.268
1967 21.67
1968 40.46
1969 14.34
1970 19.49
1971 18.71
1972 14.49
1973 27.05
1974 21.64
1975 8.53
1976 14.27
1977 21.64
1978 22.92
1979 18.85
1980 23.25
1981 15.61
1982 19.89
1983 30.96
1984 12.64
1985 28.42
1986 22.10
1987 22.10
1988 22.35
1989 35.01
1990 19.98
1991 18.46
1992 18.89
1993 25.80
1994 29.60
1995 25.31
1996 30.92
1997 27.55
1998 30.39
1999 27.30
2000 33.62
2001 23.40
2002 20.20
2003 18.67
2004 29.86
25027 RIVER OLLATRIM @ GOURDEEN BRIDGE
Moments PWM L-Moments
NE
NA
GH
CA
TC
HM
EN
T
Annual Maximum Floods 1962 to 2004.(no missing years)
25027 RIVER OLLATRIM @ GOURDEEN BRIDGEEV1
50010050251052
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=5, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 279.00 N= 48
Year AMF(m3/s)
1957 54.70 Mean 43.800 M100 43.800 L1 43.800 L-Cv 0.178
1958 18.35 Median 40.643 M110 25.804 L2 7.808 L-Skew 0.185
1959 87.04 Std.Dev. 14.090 M120 18.744 L3 1.443 L-Kur 0.132
1960 54.33 CV 0.322 M130 14.876 L4 1.028
1961 33.90 HazenS. 1.010
1962 23.57
1963 32.90
1964 68.18
1965 34.18
1966 44.41
1967 34.68
1968 71.12
1969 37.64
1970 32.30
1971 30.22
1972 28.88
1973 64.07
1974 56.37
1975 37.91
1976 29.72
1977 41.03
1978 40.41
1979 40.97
1980 40.84
1981 32.12
1982 51.47
1983 37.05
1984 36.76
1985 31.82
1986 29.98
1987 47.87
1988 25.75
1989 58.41
1990 50.77
1991 63.39
1992 32.13
1993 41.05
1994 62.13
1995 44.36
1996 42.48
1997 40.39
1998 40.44
1999 64.35
2000 46.56
2001 47.32
2002 35.85
2003 39.00
2004 63.26
25030 RIVER GRANEY @ SCARRIFF BRIDGE
Moments PWM L-Moments
LO
WE
R S
HA
NN
ON
CA
TC
HM
EN
T
Annual Maximum Floods 1957 to 2004.(no missing year)
25030 RIVER GRANEY @ SCARRIFF BRIDGEEV1
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=4
2.Shape Codes (subjective) :EV1=S1X, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 116.00 N= 18
Year AMF(m3/s)
1981 19.89 Mean 47.657 M100 47.657 L1 47.657 L-Cv 0.170
1982 75.09 Median 43.876 M110 27.883 L2 8.108 L-Skew 0.052
1983 62.32 Std.Dev. 14.055 M120 20.010 L3 0.421 L-Kur 0.129
1984 29.95 CV 0.295 M130 15.721 L4 1.049
1985 61.26 HazenS. 0.171
1986 40.68
1987 34.01
1988 38.30
1989 41.27
1990 42.98
1991 48.31
1992 40.49
1993 44.77
1994 65.98
1995 42.00
1996 53.77
1997 53.86
1998 62.88
25158 RIVER BILBOA @ CAPPAMORE
Moments PWM L-MomentsL
OW
ER
SH
AN
NO
N C
AT
CH
ME
NT
Annual Maximum Floods 1981 to 1998.(no missing year)
25158 RIVER BILBOA @ CAPPAMOREEV1
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=5, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=S1X
3.Presence of embankment: 80% of values within embankment and top 20% overflow embankment
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 182.00 N= 53
Year AMF(m3/s)
1952 16.24 Mean 26.566 M100 26.566 L1 26.566 L-Cv 0.152
1953 30.34 Median 24.227 M110 15.305 L2 4.045 L-Skew 0.397
1954 70.06 Std.Dev. 9.768 M120 11.146 L3 1.607 L-Kur 0.411
1955 14.62 CV 0.368 M130 8.947 L4 1.665
1956 22.43 HazenS. 3.869
1957 34.20
1958 24.53
1959 22.43
1960 21.42
1961 26.76
1962 17.67
1963 23.46
1964 30.34
1965 41.81
1966 18.56
1967 31.59
1968 68.66
1969 24.53
1970 23.46
1971 18.56
1972 21.81
1973 26.78
1974 23.40
1975 21.81
1976 21.03
1977 25.28
1978 26.78
1979 24.23
1980 26.13
1981 20.65
1982 21.03
1983 21.42
1984 23.61
1985 27.45
1986 23.81
1987 23.40
1988 22.60
1989 26.35
1990 29.02
1991 31.36
1992 26.35
1993 22.60
1994 23.40
1995 33.05
1996 22.60
1997 22.80
1998 25.06
1999 32.56
2000 23.612001 25.922002 24.85
2003 27.67
2004 27.89
26006 RIVER SUCK @ WILLSBROOK
Moments PWM L-Moments
SU
CK
CA
TC
HM
EN
T
Annual Maximum Floods 1952 to 2004.(no missing year)
26006 RIVER SUCK @ WILLSBROOKEV1
500100502510520
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Two high outliers are observed
2.Linear Score (subjective) :EV1=1, LO2=1, LN2=1 *For Explanation of Scores and Codes see in Introductory Page
3.Shape Codes (subjective) :EV1=S2X, LO2=S2X, LN2=S2X
A1 A (km2)= 1184.00 N= 53
Year AMF(m3/s)
1952 68.27 Mean 91.749 M100 91.749 L1 91.749 L-Cv 0.107
1953 76.02 Median 88.152 M110 50.789 L2 9.830 L-Skew 0.164
1954 136.51 Std.Dev. 17.787 M120 35.767 L3 1.616 L-Kur 0.157
1955 66.91 CV 0.194 M130 27.842 L4 1.544
1956 112.19 HazenS. 1.051
1957 115.26
1958 68.96
1959 98.92
1960 87.17
1961 88.15
1962 82.71
1963 94.69
1964 103.26
1965 110.67
1966 72.44
1967 107.73
1968 147.84
1969 90.58
1970 88.57
1971 61.61
1972 71.74
1973 92.13
1974 93.48
1975 81.95
1976 76.75
1977 109.17
1978 79.70
1979 93.48
1980 78.96
1981 79.70
1982 88.15
1983 104.74
1984 85.00
1985 81.20
1986 97.61
1987 86.56
1988 66.23
1989 119.96
1990 99.01
1991 81.20
1992 88.15
1993 85.00
1994 106.20
1995 83.47
1996 100.42
1997 87.34
1998 84.24
1999 123.16
2000 81.952001 115.262002 84.28
2003 73.32
2004 104.74
26007 RIVER SUCK @ BELLAGILL BRIDGE
Moments PWM L-Moments
SU
CK
CA
TC
HM
EN
T
Annual Maximum Floods 1952 to 2004.(no missing year)
26007 RIVER SUCK @ BELLAGILL BRIDGE
EV1
50010050251052
0
20
40
60
80
100
120
140
160
180
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
180
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=3, LN2=5
2.Shape Codes (subjective) :EV1=L1, LO2=U1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 292.00 N= 49
Year AMF(m3/s)
1955 17.29 Mean 23.677 M100 23.677 L1 23.677 L-Cv 0.103
1956 26.55 Median 22.944 M110 13.064 L2 2.451 L-Skew 0.193
1957 20.30 Std.Dev. 4.596 M120 9.197 L3 0.473 L-Kur 0.190
1958 18.50 CV 0.194 M130 7.164 L4 0.465
1959 17.12 HazenS. 1.492
1960 22.94
1961 24.12
1962 20.86
1963 25.94
1964 29.52
1965 41.02
1966 17.12
1967 26.97
1968 33.55
1969 23.73
1970 21.79
1971 20.12
1972 15.62
1973 20.49
1975 21.04
1976 20.86
1977 21.23
1978 22.37
1979 21.98
1980 21.04
1981 21.04
1982 20.36
1983 25.73
1984 23.73
1985 23.53
1986 21.61
1987 28.66
1988 23.73
1989 29.74
1990 29.74
1991 21.23
1992 29.52
1993 20.67
1994 23.73
1995 24.92
1996 23.14
1997 22.94
1998 22.17
1999 29.74
2000 21.23
2001 27.60
2002 26.55
2003 20.67
2004 26.14
26008 RIVER RINN @ JOHNSTON'S BRIDGE
Moments PWM L-Moments
RIN
N C
AT
CH
ME
NT
Annual Maximum Floods 1955 to 2004.(missing years '74)
26008 RIVER RINN @ JOHNSTON'S BRIDGE EV1
50010050251052
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.One low outlier is observed
2.Linear Score (subjective) :EV1=3, LO2=3, LN2=2
3.Shape Codes (subjective) :EV1=s2, LO2=S2, LN2=S2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 260.00 N= 51
Year AMF(m3/s)
1953 23.14 Mean 22.339 M100 22.339 L1 22.339 L-Cv 0.139
1954 36.68 Median 21.178 M110 12.719 L2 3.100 L-Skew 0.234
1955 20.36 Std.Dev. 5.639 M120 9.117 L3 0.725 L-Kur 0.121
1956 23.43 CV 0.252 M130 7.180 L4 0.375
1957 21.73 HazenS. 1.167
1958 16.47
1959 22.01
1960 24.01
1961 20.63
1962 22.57
1963 25.49
1964 32.85
1965 26.40
1966 17.03
1967 29.22
1968 33.53
1969 24.31
1970 20.36
1971 19.56
1972 15.91
1973 31.17
1974 24.90
1975 20.36
1976 21.18
1977 15.03
1978 18.77
1979 21.18
1980 18.53
1981 17.95
1982 21.18
1983 23.43
1984 23.43
1985 27.02
1986 18.29
1987 37.03
1988 18.64
1989 26.40
1991 14.60
1992 18.18
1993 16.24
1994 17.26
1995 17.72
1996 17.60
1997 17.14
1998 17.60
1999 31.84
2000 17.14
2001 22.57
2002 31.502003 16.922004 22.77
26019 RIVER CAMLIN @ MULLAGH
Moments PWM L-Moments
CA
ML
IN C
AT
CH
ME
NT
Annual Maximum Floods 1953 to 2004.( missing year '90)
26019 RIVER CAMLIN @ MULLAGHEV1
500100502510520
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 128.00 N= 32
Year AMF(m3/s)
1973 12.79 Mean 11.207 M100 11.207 L1 11.207 L-Cv 0.108
1974 13.77 Median 11.266 M110 6.207 L2 1.208 L-Skew 0.028
1975 8.51 Std.Dev. 2.080 M120 4.345 L3 0.033 L-Kur 0.075
1976 9.06 CV 0.186 M130 3.358 L4 0.090
1977 9.31 HazenS. 0.161
1978 8.67
1979 10.83
1980 9.77
1981 8.27
1982 9.98
1983 10.69
1984 11.12
1985 11.93
1986 10.12
1987 15.59
1988 10.69
1989 13.06
1990 13.92
1991 11.93
1992 14.31
1993 11.49
1994 13.30
1995 12.38
1996 11.78
1997 11.78
1998 10.76
1999 14.55
2000 8.54
2001 12.42
2002 8.54
2003 7.37
2004 11.41
26020 RIVER CAMLIN @ ARGAR BRIDGE
Moments PWM L-MomentsC
AM
LIN
CA
TC
HM
EN
TAnnual Maximum Floods 1972 to 2004.( no missing year )
26020 RIVER CAMLIN @ ARGAR BRIDGE
50010050251052
0
2
4
6
8
10
12
14
16
18
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
16
18
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.7
0.8
0.9
1
1.1
1.2
1.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=3, LN2=3
3.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 249.00 N= 17
Year AMF(m3/s)
1984 13.80 Mean 12.984 M100 12.984 L1 12.984 L-Cv 0.099
1985 12.00 Median 12.200 M110 7.133 L2 1.282 L-Skew 0.111
1986 12.00 Std.Dev. 2.305 M120 4.993 L3 0.143 L-Kur 0.175
1987 16.60 CV 0.178 M130 3.870 L4 0.224
1988 8.23 HazenS. 0.309
1989 15.80
1990 16.70
1991 10.70
1992 13.70
1993 16.50
1994 13.00
1995 11.90
1996 12.20
1997 12.20
1998 12.20
2000 11.40
2001 11.80
26059 RIVER INNY @ FINNEA BRIDGE
Moments PWM L-MomentsIN
NY
CA
TC
HM
EN
TAM Floods 1984 to 2001.( missing year '99)
26059 RIVER INNY @ FINNEA BRIDGE
50010050251052
0
2
4
6
8
10
12
14
16
18
20
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
16
18
20
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.85
0.9
0.95
1
1.05
1.1
1.15
1.2
1.25
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=2, LO2=2, LN2=1
3.Shape Codes (subjective) :EV1=D1, LO2=D1, LN2=D2X
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 562.00 N= 51
Year AMF(m3/s)
1954 39.56 Mean 34.221 M100 34.221 L1 34.221 L-Cv 0.122
1955 23.64 Median 32.600 M110 19.193 L2 4.165 L-Skew 0.181
1956 33.58 Std.Dev. 7.751 M120 13.615 L3 0.752 L-Kur 0.216
1957 31.85 CV 0.226 M130 10.662 L4 0.898
1958 21.29 HazenS. 1.365
1959 59.76
1960 39.08
1961 32.42
1962 23.89
1963 31.28
1964 40.04
1965 32.13
1966 28.77
1967 33.00
1968 40.52
1969 30.71
1970 29.60
1971 25.56
1972 34.14
1973 34.87
1974 42.06
1975 31.30
1976 25.38
1977 34.98
1978 27.00
1979 36.77
1980 30.28
1981 29.83
1982 34.66
1983 37.76
1984 26.71
1985 29.68
1986 35.31
1987 33.86
1988 25.70
1989 43.38
1990 39.77
1991 32.60
1992 31.51
1993 46.21
1994 53.59
1995 23.18
1996 30.89
1997 37.10
1998 36.61
1999 53.59
2000 35.79
2001 41.99
2002 31.202003 28.772004 32.13
27002 RIVER FERGUS @ BALLYCOREY
Moments PWM L-Moments
CL
AR
E C
AT
CH
ME
NT
Annual Maximum Floods 1954 to 2004.(no missing year)
27002 RIVER FERGUS @ BALLYCOREYEV1
50010050251052
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 119.00 N= 40
Year AMF(m3/s)
1961 13.37 Mean 14.165 M100 14.165 L1 14.165 L-Cv 0.109
1962 11.68 Median 13.464 M110 7.852 L2 1.538 L-Skew 0.093
1963 13.37 Std.Dev. 2.691 M120 5.515 L3 0.144 L-Kur 0.096
1964 18.68 CV 0.190 M130 4.277 L4 0.148
1965 12.61 HazenS. 0.339
1966 12.23
1967 18.35
1968 16.36
1969 12.14
1970 12.14
1971 12.42
1972 8.39
1973 16.87
1974 15.03
1975 11.23
1976 12.89
1977 15.74
1979 13.94
1980 13.08
1981 9.81
1982 12.33
1983 15.74
1984 14.14
1985 13.37
1986 11.41
1987 10.69
1988 14.24
1989 16.56
1990 12.70
1994 19.66
1995 13.08
1996 15.03
1997 13.95
1998 16.46
1999 17.08
2000 18.14
2001 17.50
2002 13.56
2003 11.41
2004 19.22
29001 RIVER RAFORD @ RATHGORGIN
Moments PWM L-Moments
LO
UG
HR
EA
CA
TC
HM
EN
T
Annual Maximum Floods '61-'04.( missing years 78,91-93)
29001 RIVER RAFORD @ RATHGORGINEV1
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=4, LN2=4
3.Shape Codes (subjective) :EV1=D1, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= N/A N= 22
Year AMF(m3/s)
1983 26.21 Mean 31.941 M100 31.941 L1 31.941 L-Cv 0.145
1984 29.16 Median 28.892 M110 18.282 L2 4.623 L-Skew 0.410
1985 24.09 Std.Dev. 9.633 M120 13.274 L3 1.894 L-Kur 0.318
1986 29.01 CV 0.302 M130 10.612 L4 1.470
1987 26.21 HazenS. 3.374
1988 22.37
1989 40.61
1990 32.66
1991 28.40
1992 28.78
1993 28.03
1994 44.34
1995 24.09
1996 30.30
1997 28.40
1998 26.93
1999 39.81
2000 31.47
2001 33.67
2002 24.44
2003 37.21
2004 66.52
29011 RIVER DUNKELLIN @ KILCOLGAN BRIDGE
Moments PWM L-Moments
LO
UG
HR
EA
CA
TC
HM
EN
T
Annual Maximum Floods 1983 to 2004.( no missing year )
29011 RIVER DUNKELLIN @ KILCOLGAN BRIDGEEV1
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=2, LN2=2
2.Shape Codes (subjective) :EV1=D1, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 72.00 N= 26
Year AMF(m3/s)
1979 10.50 Mean 12.890 M100 12.890 L1 12.890 L-Cv 0.129
1980 11.50 Median 12.161 M110 7.278 L2 1.667 L-Skew 0.308
1981 9.57 Std.Dev. 3.138 M120 5.215 L3 0.513 L-Kur 0.178
1982 10.40 CV 0.243 M130 4.116 L4 0.297
1983 12.90 HazenS. 1.925
1984 14.10
1985 13.60
1986 10.70
1987 10.20
1988 10.80
1989 21.10
1990 17.70
1991 14.30
1992 11.30
1993 13.10
1994 13.20
1995 15.50
1996 10.10
1997 9.79
1998 12.60
1999 21.00
2000 15.20
2001 12.00
2002 12.30
2003 9.65
2004 12.02
CA
SH
LA
CA
TC
HM
EN
T31002 RIVER CASHLA @ CASHLA
Moments PWM L-Moments
Annual Maximum Floods 1979 to 2004.( no missing year )
31002 RIVER CASHLA @ CASHLAEV1
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=1, LN2=1
2.Shape Codes (subjective) :EV1=U2X, LO2=U2X, LN2=U2X
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 90.00 N= 28
Year AMF(m3/s)
1975 5.92 Mean 7.897 M100 7.897 L1 7.897 L-Cv 0.090
1976 7.79 Median 7.667 M110 4.305 L2 0.713 L-Skew 0.101
1977 8.95 Std.Dev. 1.299 M120 3.001 L3 0.072 L-Kur 0.183
1978 7.12 CV 0.164 M130 2.320 L4 0.130
1979 6.34 HazenS. 1.191
1980 6.55
1981 7.44
1982 7.25
1983 8.65
1984 9.01
1985 9.20
1986 9.44
1987 7.36
1988 8.24
1989 11.97
1990 8.40
1991 8.61
1992 7.43
1993 7.31
1994 7.99
1995 7.13
1996 7.54
1997 8.73
1998 7.85
1999 9.35
2002 5.67
2003 6.40
2004 7.49
OW
EN
MO
RE
CA
TC
HM
EN
T33070 RIVER CARROWMORE L. @ CARROWMORE
Moments PWM L-Moments
Annual Maximum Floods '75 to '04.( missing years '00,01)
33070 RIVER CARROWMORE L. @ CARROWMORE EV1
50010050251052
0
2
4
6
8
10
12
14
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 50010050251050
2
4
6
8
10
12
14
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.7
0.8
0.9
1
1.1
1.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2X, LO2=L2X, LN2=L2X
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 93.00 N= 27
Year AMF(m3/s)
1976 8.64 Mean 11.496 M100 11.496 L1 11.496 L-Cv 0.114
1977 9.97 Median 11.278 M110 6.405 L2 1.314 L-Skew 0.177
1978 9.11 Std.Dev. 2.312 M120 4.528 L3 0.233 L-Kur 0.033
1979 8.87 CV 0.201 M130 3.526 L4 0.043
1980 13.24 HazenS. 0.928
1981 9.35
1982 11.41
1983 11.28
1984 11.82
1985 8.76
1986 12.38
1987 11.14
1988 9.35
1989 17.33
1990 14.44
1991 9.23
1992 9.90
1993 9.97
1994 12.24
1995 10.10
1996 9.60
1997 13.98
1998 14.59
1999 14.90
2000 14.29
2001 11.96
2002 12.52
34018 RIVER CASTLEBAR @ TURLOUGH
Moments PWM L-Moments
MO
Y C
AT
CH
ME
NT
Annual Maximum Floods 1976 to 2002.(no missing years)
34018 RIVER CASTLEBAR @ TURLOUGH EV1
50010050251052
0
2
4
6
8
10
12
14
16
18
20
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
LO2
2 5001005025105
0
2
4
6
8
10
12
14
16
18
20
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.6
0.7
0.8
0.9
1
1.1
1.2
1.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 774.00 N= 50
Year AMF(m3/s)
1955 46.01 Mean 66.559 M100 66.559 L1 66.559 L-Cv 0.118
1956 70.90 Median 66.798 M110 37.218 L2 7.877 L-Skew 0.147
1957 56.12 Std.Dev. 14.532 M120 26.318 L3 1.156 L-Kur 0.218
1958 61.62 CV 0.218 M130 20.559 L4 1.718
1959 67.94 HazenS. 1.053
1960 67.35
1961 67.35
1962 58.84
1963 77.62
1964 98.01
1965 98.71
1966 73.92
1967 75.15
1968 66.77
1969 60.50
1970 39.62
1971 47.30
1972 46.80
1973 60.72
1974 56.87
1975 45.03
1976 57.42
1977 48.50
1978 67.59
1979 56.33
1980 62.69
1981 68.47
1982 61.00
1983 73.56
1984 52.61
1985 58.51
1986 59.45
1987 102.28
1988 63.37
1989 77.06
1990 76.44
1991 76.44
1992 66.83
1993 67.76
1994 66.88
1995 106.62
1996 60.06
1997 61.17
1998 60.06
1999 69.83
2000 70.42
2001 69.23
2002 78.37
2003 52.51
2004 93.36
36010 RIVER ANNALEE @ BUTLERS BRIDGE
Moments PWM L-Moments
ER
NE
CA
TC
HM
EN
T
Annual Maximum Floods 1955 to 2004.(no missing years)
36010 RIVER ANNALEE @ BUTLERS BRIDGE EV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 5001005025105
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=S1X, LO2=S1X, LN2=S1X
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 263.00 N= 47
Year AMF(m3/s)
1956 15.07 Mean 14.216 M100 14.216 L1 14.216 L-Cv 0.129
1957 10.00 Median 14.116 M110 8.027 L2 1.838 L-Skew 0.034
1958 9.43 Std.Dev. 3.193 M120 5.668 L3 0.063 L-Kur 0.096
1959 14.52 CV 0.225 M130 4.406 L4 0.177
1960 13.05 HazenS. 0.212
1961 12.54
1962 10.58
1963 16.06
1964 18.44
1965 17.83
1966 13.31
1967 15.92
1968 13.71
1969 12.79
1970 11.17
1971 8.35
1972 8.14
1973 10.37
1974 17.23
1975 17.23
1976 15.35
1977 11.83
1978 12.31
1979 14.12
1980 13.35
1981 11.73
1982 13.05
1983 13.33
1984 12.77
1985 10.12
1986 15.35
1987 14.74
1988 10.22
1989 17.83
1990 19.49
1991 11.03
1992 16.06
1993 15.49
1994 17.83
1995 12.51
1996 14.93
1997 16.03
1998 14.80
1999 21.63
2000 17.23
2001 20.48
2002 18.75
36012 RIVER ERNE @ SALLAGHAN
Moments PWM L-Moments
ER
NE
CA
TC
HM
EN
T
Annual Maximum Floods 1956 to 2002.(no missing years)
36012 RIVER ERNE @ SALLAGHAN EV1
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 5001005025105
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.7
0.8
0.9
1
1.1
1.2
1.3
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=4, LN2=3
2.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 175.00 N= 33
Year AMF(m3/s)
1972 19.87 Mean 23.140 M100 23.140 L1 23.140 L-Cv 0.159
1973 18.60 Median 22.078 M110 13.414 L2 3.687 L-Skew 0.325
1974 17.37 Std.Dev. 7.481 M120 9.757 L3 1.197 L-Kur 0.299
1975 15.17 CV 0.323 M130 7.799 L4 1.103
1976 19.72 HazenS. 2.616
1977 14.83
1978 25.87
1979 21.48
1980 27.71
1981 22.08
1982 23.31
1983 22.84
1984 18.32
1985 19.16
1986 14.68
1987 49.99
1988 16.19
1989 18.88
1990 22.69
1991 43.30
1992 22.84
1993 21.48
1994 22.69
1995 31.41
1996 18.32
1997 18.05
1998 20.59
1999 22.38
2000 23.31
2001 28.92
2002 26.20
2003 23.62
2004 31.77
36015 RIVER FINN @ ANLORE
Moments PWM L-Moments
LO
WE
R L
OU
GH
ER
NE
CA
TC
HM
EN
T
Annual Maximum Floods 1972 to 2004.(no missing years)
36015 RIVER FINN @ ANLORE EV1
50010050251052
0
10
20
30
40
50
60
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 5001005025105
0
10
20
30
40
50
60
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.7
0.9
1.1
1.3
1.5
1.7
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Highoutliers are observed
2.Linear Score (subjective) :EV1=2, LO2=2, LN2=2
3.Shape Codes (subjective) :EV1=U2, LO2=U2, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A1 A (km2)= 233.00 N= 50
Year AMF(m3/s)
1955 10.23 Mean 15.842 M100 15.842 L1 15.842 L-Cv 0.104
1956 18.33 Median 16.248 M110 8.748 L2 1.653 L-Skew 0.045
1957 13.02 Std.Dev. 2.912 M120 6.120 L3 0.074 L-Kur 0.100
1958 16.25 CV 0.184 M130 4.731 L4 0.165
1959 16.25 HazenS. 0.433
1960 16.25
1961 16.70
1962 14.06
1963 16.70
1964 19.05
1965 19.17
1966 14.06
1967 16.70
1968 12.62
1969 16.25
1970 11.53
1971 12.52
1972 12.62
1973 13.85
1974 17.63
1975 10.86
1976 15.36
1977 12.22
1978 17.16
1979 12.42
1980 14.70
1981 15.36
1982 12.02
1983 17.39
1984 13.02
1985 14.27
1986 16.70
1987 19.66
1988 13.64
1989 16.70
1990 18.57
1991 20.28
1992 13.85
1993 19.29
1994 16.25
1995 24.43
1996 14.27
1997 14.06
1998 17.16
1999 18.57
2000 17.63
2001 17.16
2002 20.53
2003 14.492004 20.28
ER
NE
CA
TC
HM
EN
T
36018 RIVER DRONMORE @ ASHFIELD BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1955 to 2004.(no missing years)
36018 RIVER DRONMORE @ ASHFIELD BRIDGE EV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=4, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
Appendix 4A2
A2 A (km2)= 45.30 N= 18
Year AMF(m3/s)
1977 8.33 Mean 13.584 M100 13.584 L1 13.584 L-Cv 0.258
1978 14.10 Median 11.700 M110 8.547 L2 3.510 L-Skew 0.392
1979 6.41 Std.Dev. 7.056 M120 6.512 L3 1.376 L-Kur 0.317
1980 35.80 CV 0.519 M130 5.375 L4 1.112
1981 18.10 HazenS. 3.116
1982 11.10
1983 12.80
1984 24.40
1985 14.50
1986 9.88
1987 9.65
1988 12.30
1989 6.96
1991 14.54
1992 9.36
1993 16.45
1994 10.13
1995 9.72
BA
LL
YM
AS
GA
NL
AN
CA
TC
HM
EN
T6031 RIVER FLURRY @ CURRALHIR
Moments PWM L-Moments
Annual Maximum Floods 1977 to 1995.( missing year '90)
6031 RIVER FLURRY @ CURRALHIREV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.8
1
1.2
1.4
1.6
1.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.One high-outlier is observed
2.Linear Score (subjective) :EV1=2, LO2=2, LN2=3
3.Shape Codes (subjective) :EV1=U2, LO2=U2, LN2=U2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 176.00 N= 19
Year AMF(m3/s)
1986 15.67 Mean 26.726 M100 26.726 L1 26.726 L-Cv 0.117
1987 28.29 Median 27.933 M110 14.933 L2 3.140 L-Skew -0.205
1988 25.18 Std.Dev. 5.493 M120 10.371 L3 -0.642 L-Kur 0.074
1989 30.46 CV 0.206 M130 7.945 L4 0.232
1990 30.64 HazenS. -1.088
1991 26.54
1992 27.93
1993 34.05
1994 30.46
1995 32.51
1996 23.36
1997 20.69
1998 24.18
1999 20.08
2000 31.95
2001 27.06
2002 30.27
2003 16.07
2004 32.42
BO
YN
E C
AT
CH
ME
NT
7006 RIVER MOYNALTY @ FYANSTOWN
Moments PWM L-Moments
Annual Maximum Floods 1986 to 2004.(no missing years)
7006 RIVER MOYNALTY @ FYANSTOWN
'00 '04 '95 '93
EV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the probability plot
2.Linear Score (subjective) :EV1=2, LO2=3, LN2=2
3.Shape Codes (subjective) :EV1=D2, LO2=D1, LN2=D2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 129.00 N= 25
Year AMF(m3/s)
1980 10.18 Mean 14.934 M100 14.934 L1 14.934 L-Cv 0.129
1981 8.79 Median 14.621 M110 8.431 L2 1.927 L-Skew 0.162
1982 18.71 Std.Dev. 3.622 M120 5.994 L3 0.312 L-Kur 0.272
1983 10.48 CV 0.242 M130 4.705 L4 0.524
1984 12.60 HazenS. 1.739
1985 13.83
1986 15.93
1987 14.62
1988 20.56
1989 14.52
1990 18.35
1991 16.61
1992 16.44
1993 12.45
1994 12.75
1995 16.17
1996 12.90
1997 13.83
1998 12.31
1999 13.27
2000 15.67
2001 14.94
2002 15.27
2003 15.60
2004 26.58
BO
YN
E C
AT
CH
ME
NT
7033 RIVER BLACKWATER @ VIRGINIA HATCHERY
Moments PWM L-Moments
Annual Maximum Floods 1980 to 2004.(no missing years)
7033 RIVER BLACKWATER @ VIRGINIA HATCHERYEV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=S1, LO2=U1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 10.10 N= 18
Year AMF(m3/s)
1983 0.68 Mean 3.037 M100 3.037 L1 3.037 L-Cv 0.378
1984 2.00 Median 2.495 M110 2.092 L2 1.147 L-Skew 0.228
1985 5.26 Std.Dev. 2.058 M120 1.629 L3 0.261 L-Kur 0.189
1986 2.68 CV 0.678 M130 1.351 L4 0.217
1987 4.19 HazenS. 1.537
1988 0.86
1989 2.16
1990 2.19
1991 1.49
1992 7.12
1993 3.29
1994 0.33
1995 2.31
1996 3.22
1997 3.58
1998 3.86
1999 1.63
2000 7.81
CO
AS
TA
L C
AT
CH
ME
NT
8005 RIVER SLUICE @ KINSALEY HALL
Moments PWM L-Moments
Annual Maximum Floods 1983 to 2000.(no missing years)
8005 RIVER SLUICE @ KINSALEY HALL
50010050251052
0
1
2
3
4
5
6
7
8
9
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
1
2
3
4
5
6
7
8
9
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=5
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 110.00 N= 25
Year AMF(m3/s)
1978 72.27 Mean 44.550 M100 44.550 L1 44.550 L-Cv 0.342
1979 104.71 Median 40.898 M110 29.884 L2 15.218 L-Skew 0.279
1980 24.69 Std.Dev. 28.176 M120 23.166 L3 4.243 L-Kur 0.161
1982 54.14 CV 0.632 M130 19.168 L4 2.444
1983 24.00 HazenS. 1.738
1984 41.84
1985 69.67
1986 41.84
1987 20.13
1989 23.67
1990 34.67
1991 40.90
1992 69.67
1993 43.76
1994 42.79
1995 22.67
1996 18.93
1997 22.02
1998 51.96
1999 11.73
2000 74.92
2001 28.29
2002 123.69
2003 11.73
2004 39.06
BR
OA
DM
EA
DO
W &
WA
RD
CA
TC
HM
EN
T8008 RIVER BROADMEADOW @ BROADMEADOW
Moments PWM L-Moments
Annual Maximum Floods '78 to '04.( missing year '81,88)
8008 RIVER BROADMEADOW @ BROADMEADOWEV1
50010050251052
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1036.00 N= 50
Year AMF(m3/s)
1955 107.00 Mean 169.500 M100 169.500 L1 169.500 L-Cv 0.194
1956 202.00 Median 157.000 M110 101.195 L2 32.890 L-Skew 0.176
1957 227.00 Std.Dev. 61.599 M120 73.908 L3 5.776 L-Kur 0.171
1958 158.00 CV 0.363 M130 58.901 L4 5.636
1959 146.00 HazenS. 1.595
1960 246.00
1961 139.00
1962 180.00
1963 166.00
1964 158.00
1965 399.00
1966 166.00
1967 107.00
1968 153.00
1969 156.00
1970 93.20
1971 190.00
1972 87.90
1973 132.00
1974 134.00
1975 75.00
1976 134.00
1977 203.00
1978 225.00
1979 196.00
1980 137.00
1981 161.00
1982 134.00
1983 122.00
1984 155.00
1985 225.00
1986 151.00
1987 167.00
1988 151.00
1989 116.00
1990 81.90
1991 117.00
1992 205.00
1993 189.00
1994 227.00
1995 205.00
1996 153.00
1997 241.00
1998 215.00
1999 101.00
2000 338.00
2001 121.00
2002 221.00
2003 116.00
2004 245.00
Sla
ne
y C
AT
CH
ME
NT
12001 RIVER Slaney @ Scarawalsh
Moments PWM L-Moments
Annual Maximum Floods 1955 to 2004.(no missing years)
12001 RIVER Slaney @ Scarawalsh
EV1
50010050251052
0
50
100
150
200
250
300
350
400
450
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
300
350
400
450
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 398.00 N= 48
Year AMF(m3/s)
1955 32.58 Mean 40.812 M100 40.812 L1 40.812 L-Cv 0.149
1956 48.37 Median 38.266 M110 23.444 L2 6.076 L-Skew 0.291
1957 50.88 Std.Dev. 11.827 M120 16.936 L3 1.767 L-Kur 0.222
1958 37.42 CV 0.290 M130 13.446 L4 1.352
1959 56.13 HazenS. 2.011
1960 57.76
1961 32.97
1962 40.44
1963 40.00
1964 59.99
1965 48.37
1966 52.42
1967 52.94
1968 80.42
1970 34.95
1971 44.06
1972 32.97
1973 45.00
1974 38.69
1975 32.58
1976 32.58
1978 37.84
1979 35.35
1980 37.42
1981 30.69
1982 39.56
1983 38.27
1984 38.69
1985 45.95
1986 40.44
1987 38.69
1988 37.00
1989 80.42
1990 39.56
1991 27.45
1992 28.09
1993 35.76
1994 52.94
1995 28.09
1996 26.07
1997 34.55
1998 29.95
1999 36.17
2000 38.27
2001 32.20
2002 29.95
2003 28.09
2004 40.00
BA
RR
OW
CA
TC
HM
EN
T14005 RIVER BARROW @ PORTARLINGTON
Moments PWM L-Moments
Annual Maximum Floods '55 to '04.( missing year '69,77)
14005 RIVER BARROW @ PORTARLINGTONEV1
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.High-outliers are observed
2.Linear Score (subjective) :EV1=3, LO2=2, LN2=2
3.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 68.00 N= 25
Year AMF(m3/s)
1980 7.46 Mean 6.688 M100 6.688 L1 6.688 L-Cv 0.125
1981 6.88 Median 6.790 M110 3.762 L2 0.836 L-Skew 0.136
1982 8.00 Std.Dev. 1.550 M120 2.666 L3 0.114 L-Kur 0.242
1983 6.15 CV 0.232 M130 2.087 L4 0.202
1984 7.23 HazenS. 1.420
1985 7.50
1986 6.79
1987 5.32
1988 4.88
1989 11.19
1990 5.89
1991 6.92
1992 7.73
1993 5.64
1994 9.92
1995 6.23
1996 6.83
1997 6.06
1998 6.66
1999 5.08
2000 7.10
2001 5.32
2002 5.32
2003 3.86
2004 7.23
BA
RR
OW
CA
TC
HM
EN
T14009 RIVER CUSHINA @ CUSHINA
Moments PWM L-Moments
Annual Maximum Floods 1980 to 2004.(no missing years)
14009 RIVER CUSHINA @ CUSHINA EV1
50010050251052
0
2
4
6
8
10
12
14
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
2
4
6
8
10
12
14
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=S1, LO2=U1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 154.00 N= 50
Year AMF(m3/s)
1955 12.22 Mean 16.537 M100 16.537 L1 16.537 L-Cv 0.151
1956 20.34 Median 16.048 M110 9.520 L2 2.504 L-Skew 0.071
1957 16.81 Std.Dev. 4.343 M120 6.794 L3 0.179 L-Kur 0.059
1958 20.92 CV 0.263 M130 5.313 L4 0.147
1959 13.94 HazenS. 0.365
1960 21.21
1961 13.06
1962 26.32
1963 15.81
1964 16.31
1965 24.65
1966 22.12
1967 15.09
1968 24.65
1969 12.01
1970 11.81
1971 18.65
1972 18.65
1973 20.05
1974 12.42
1975 10.37
1976 14.14
1977 17.16
1978 16.64
1979 19.08
1980 13.01
1981 15.96
1982 14.63
1983 14.14
1984 11.43
1985 16.13
1986 15.29
1987 15.29
1988 16.47
1989 15.29
1990 11.74
1991 10.52
1992 19.08
1993 19.61
1994 20.51
1995 21.60
1996 10.22
1997 19.97
1998 22.15
1999 10.22
2000 18.90
2001 10.82
2002 15.63
2003 9.622004 24.20
BA
RR
OW
CA
TC
HM
EN
T14013 RIVER BURRIN @ BALLINACARRIG
Moments PWM L-Moments
Annual Maximum Floods 1955 to 2004.( no missing year )
14013 RIVER BURRIN @ BALLINACARRIGEV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=S1, LO2=S2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 2762.00 N= 47
Year AMF(m3/s)
1945 206.21 Mean 162.543 M100 162.543 L1 162.543 L-Cv 0.078
1946 188.58 Median 160.745 M110 87.598 L2 12.654 L-Skew 0.058
1947 200.23 Std.Dev. 21.983 M120 60.631 L3 0.739 L-Kur 0.067
1948 187.46 CV 0.135 M130 46.557 L4 0.852
1949 147.34 HazenS. 0.184
1950 156.94
1951 167.48
1952 145.49
1953 147.96
1954 190.15
1955 141.70
1956 166.94
1957 167.59
1958 177.71
1959 169.32
1960 203.21
1961 134.03
1962 153.16
1963 150.97
1964 178.37
1965 191.16
1966 173.22
1967 138.05
1968 147.96
1970 140.79
1971 145.69
1973 197.84
1978 167.81
1980 142.83
1981 160.21
1982 137.75
1983 177.27
1984 161.60
1985 136.54
1986 151.18
1989 192.40
1990 159.26
1991 143.13
1996 114.45
1997 184.67
1998 180.24
1999 150.24
2000 172.57
2001 144.05
2002 160.74
2003 123.09
2004 163.94
BA
RR
OW
CA
TC
HM
EN
T14029 RIVER BARROW @ GRAIGUENAMANAGH
Moments PWM L-Moments
AMF 1945 to 2004.( missing year '72-77,87,88,92-95 )
14029 RIVER BARROW @ GRAIGUENAMANAGHEV1
2 5 10 25 50 100 500
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=4, LN2=5
3.Shape Codes (subjective) :EV1=D1, LO2=S1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 2060.00 N= 14
Year AMF(m3/s)
1978 166.00 Mean 137.300 M100 137.300 L1 137.300 L-Cv 0.175
1979 143.00 Median 125.000 M110 80.645 L2 23.990 L-Skew 0.332
1980 160.00 Std.Dev. 43.868 M120 59.091 L3 7.974 L-Kur 0.173
1981 117.00 CV 0.320 M130 47.322 L4 4.159
1984 103.00 HazenS. 2.229
1985 105.00
1986 102.00
1987 128.00
1989 90.80
1990 247.00
1991 140.00
1992 99.40
1993 199.00
1994 122.00
BA
RR
OW
CA
TC
HM
EN
T14034 RIVER BARROW @ BESTFIELD
Moments PWM L-Moments
AM Floods 1978 to 1994.( missing year '82-83,88)
14034 RIVER BARROW @ BESTFIELD
50010050251052
0
50
100
150
200
250
300
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
300
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=2
2.Shape Codes (subjective) :EV1=L2X, LO2=U2X, LN2=U2X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 443.00 N= 42
Year AMF(m3/s)
1954 107.00 Mean 89.388 M100 89.388 L1 89.388 L-Cv 0.159
1955 47.00 Median 88.750 M110 51.805 L2 14.222 L-Skew 0.003
1956 73.80 Std.Dev. 24.717 M120 36.915 L3 0.048 L-Kur 0.075
1957 89.20 CV 0.277 M130 28.813 L4 1.070
1958 75.40 HazenS. 0.143
1959 51.40
1960 110.00
1962 52.50
1963 78.50
1964 90.90
1965 97.90
1966 80.10
1967 65.00
1968 151.00
1969 52.50
1977 105.00
1978 110.00
1979 124.00
1980 96.10
1981 97.90
1982 88.30
1983 88.30
1984 62.20
1985 124.00
1986 66.40
1987 84.10
1988 76.90
1989 111.00
1990 63.60
1991 74.60
1992 94.30
1993 69.30
1994 109.00
1995 113.00
1996 73.80
1997 114.00
1998 114.00
1999 83.30
2000 114.00
2002 102.00
2003 44.00
2004 129.00
NO
RE
CA
TC
HM
EN
T15001 RIVER Kings @ Annamult
Moments PWM L-Moments
AM Floods 1954 to 2004.(missing years:61,70-76,01)
15001 RIVER Kings @ Annamult
EV1
50010050251052
0
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=D2, LO2=S2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1605.00 N= 35
Year AMF(m3/s)
1966 241.00 Mean 211.983 M100 211.983 L1 211.983 L-Cv 0.177
1967 218.00 Median 197.000 M110 124.713 L2 37.444 L-Skew 0.077
1968 393.00 Std.Dev. 65.852 M120 89.864 L3 2.887 L-Kur 0.088
1969 126.00 CV 0.311 M130 70.732 L4 3.289
1970 181.00 HazenS. 0.587
1971 160.00
1972 135.00
1973 258.00
1974 204.00
1975 93.40
1976 139.00
1977 225.00
1978 263.00
1979 295.00
1980 196.00
1981 155.00
1982 189.00
1983 290.00
1984 117.00
1985 281.00
1986 180.00
1987 197.00
1988 172.00
1989 299.00
1990 171.00
1991 177.00
1992 126.00
1993 187.00
1994 297.00
1995 263.00
1996 189.00
1997 281.00
1998 247.00
1999 200.00
2000 274.00
NO
RE
CA
TC
HM
EN
T15002 RIVER NORE @ JOHN'S BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1966 to 2000.(no missing years)
15002 RIVER NORE @ JOHN'S BRIDGE
50010050251052
0
50
100
150
200
250
300
350
400
450
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
300
350
400
450
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.6
1.8
2
2.2
2.4
2.6
2.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A(km2)= 298.00 N= 50
Year AMF(m3/s)
1954 176.16 Mean 143.575 M100 143.575 L1 143.575 L-Cv 0.111
1955 141.36 Median 150.758 M110 79.736 L2 15.897 L-Skew -0.146
1956 153.43 Std.Dev. 28.196 M120 55.419 L3 -2.325 L-Kur 0.087
1957 164.26 CV 0.196 M130 42.535 L4 1.384
1958 151.14 HazenS. -0.781
1959 154.96
1960 168.98
1961 127.50
1962 98.68
1963 106.65
1964 110.71
1965 175.35
1966 161.92
1967 153.43
1968 184.25
1969 100.65
1970 126.78
1971 106.65
1972 115.52
1973 165.83
1974 116.91
1975 98.02
1976 107.32
1977 168.98
1978 154.96
1979 164.26
1980 150.38
1981 117.60
1982 161.92
1983 160.36
1984 148.86
1985 187.52
1986 125.35
1987 145.85
1988 133.27
1989 160.36
1990 96.72
1991 150.38
1992 131.82
1993 142.85
1994 157.27
1995 142.85
1996 170.97
1997 185.06
1998 183.43
1999 151.14
2000 128.93
2002 164.26
2003 61.132004 165.83
NO
RE
CA
TC
HM
EN
T15003 RIVER DINAN @ DINAN BRIDGE
Moments PWM L-Moments
AM Floods 1954 to 2004.(missing years '01)
15003 RIVER DINAN @ DINAN BRIDGE
'98 '97 '85
50010050251052
0
50
100
150
200
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=2, LO2=3, LN2=2
3.Shape Codes (subjective) :EV1=D2, LO2=S1, LN2=D2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 491.00 N= 51
Year AMF(m3/s)
1954 39.82 Mean 38.963 M100 38.963 L1 38.963 L-Cv 0.175
1955 29.52 Median 37.284 M110 22.881 L2 6.799 L-Skew 0.128
1956 35.77 Std.Dev. 12.262 M120 16.533 L3 0.873 L-Kur 0.148
1957 35.14 CV 0.315 M130 13.069 L4 1.009
1958 16.98 HazenS. 0.956
1959 46.54
1960 39.62
1961 27.90
1962 29.26
1963 30.64
1964 44.52
1965 56.88
1966 31.53
1967 22.06
1968 55.46
1969 30.64
1970 27.23
1971 22.27
1972 25.03
1973 38.61
1974 41.40
1975 21.75
1976 32.76
1977 30.89
1978 33.57
1979 37.70
1980 37.28
1981 28.79
1982 42.25
1983 45.76
1984 37.14
1985 41.10
1986 40.53
1987 20.58
1988 29.83
1989 74.96
1990 46.65
1991 31.15
1992 36.59
1993 49.34
1994 73.61
1995 49.34
1996 34.11
1997 49.04
1998 48.14
1999 56.40
2000 56.40
2001 50.55
2002 44.872003 33.432004 45.76
NO
RE
CA
TC
HM
EN
T15004 RIVER NORE @ McMAHONS BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2004.( no missing year)
15004 RIVER NORE @ McMAHONS BRIDGEEV1
50010050251052
0
10
20
30
40
50
60
70
80
90
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
90
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=3, LN2=5
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 140.00 N= 33
Year AMF(m3/s)
1972 14.97 Mean 15.654 M100 15.654 L1 15.654 L-Cv 0.124
1973 17.52 Median 15.656 M110 8.798 L2 1.942 L-Skew 0.012
1974 16.75 Std.Dev. 3.404 M120 6.193 L3 0.023 L-Kur 0.125
1975 15.54 CV 0.217 M130 4.805 L4 0.243
1976 14.38 HazenS. 0.301
1977 17.38
1978 24.49
1979 20.05
1980 15.66
1981 13.93
1982 14.95
1983 19.36
1984 10.26
1985 16.75
1986 13.81
1987 17.38
1988 11.71
1989 16.75
1990 11.31
1991 9.45
1992 11.81
1993 15.07
1994 18.16
1995 18.82
1996 13.38
1997 13.38
1998 11.81
1999 18.16
2000 18.82
2001 15.66
2002 17.51
2003 10.36
2004 21.25
16001 RIVER DRISH @ ATHLUMMON
Moments PWM L-Moments
SU
IR C
AT
CH
ME
NT
Annual Maximum Floods 1972 to 2004.( no missing year)
16001 RIVER DRISH @ ATHLUMMON EV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=4, LN2=5
2.Shape Codes (subjective) :EV1=L1, LO2=U1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 512.00 N= 51
Year AMF(m3/s)
1954 63.23 Mean 55.403 M100 55.403 L1 55.403 L-Cv 0.156
1955 42.19 Median 52.664 M110 32.027 L2 8.651 L-Skew 0.172
1956 48.32 Std.Dev. 16.373 M120 23.041 L3 1.490 L-Kur 0.191
1957 70.88 CV 0.296 M130 18.199 L4 1.650
1958 50.46 HazenS. 1.793
1959 54.92
1960 79.03
1961 40.25
1962 62.00
1963 63.23
1964 81.86
1965 73.54
1966 60.78
1967 52.66
1968 123.88
1969 44.51
1970 42.06
1971 57.07
1972 38.55
1973 71.32
1974 54.69
1975 35.25
1976 50.09
1977 54.69
1978 72.71
1979 63.31
1980 39.70
1981 46.81
1982 40.87
1983 63.31
1984 32.14
1985 52.36
1986 45.74
1987 59.52
1988 46.81
1989 84.42
1990 52.36
1991 46.81
1992 30.18
1993 48.98
1994 60.77
1995 64.61
1996 75.54
1997 58.29
1998 44.51
1999 59.52
2000 53.52
2001 43.65
2002 42.632003 29.812004 51.22
SU
IR C
AT
CH
ME
NT
16002 RIVER SUIR @ BEAKSTOWN
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2004.(no missing years)
16002 RIVER SUIR @ BEAKSTOWN EV1
500100502510520
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.One high-outlier is observed
2.Linear Score (subjective) :EV1=3, LO2=2, LN2=4
3.Shape Codes (subjective) :EV1=L2X, LO2=U1X, LN2=L2X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 246.00 N= 51
Year AMF(m3/s)
1954 26.68 Mean 31.172 M100 31.172 L1 31.172 L-Cv 0.099
1955 25.56 Median 29.981 M110 17.134 L2 3.096 L-Skew 0.207
1956 27.39 Std.Dev. 5.539 M120 12.045 L3 0.639 L-Kur 0.054
1957 27.96 CV 0.178 M130 9.354 L4 0.168
1958 24.32 HazenS. 0.848
1959 26.68
1960 29.98
1961 25.56
1962 26.26
1963 27.82
1964 30.86
1965 26.40
1966 28.24
1967 26.40
1968 29.54
1969 27.53
1970 26.68
1971 25.98
1972 26.82
1973 27.96
1974 28.53
1975 26.40
1976 26.54
1977 25.70
1978 45.72
1979 42.96
1980 33.91
1981 34.14
1982 40.74
1983 41.23
1984 21.56
1985 26.74
1986 25.92
1987 30.57
1988 30.14
1989 30.57
1990 32.34
1991 35.29
1992 30.57
1993 35.52
1994 37.86
1995 34.14
1996 39.29
1997 37.39
1998 34.37
1999 35.29
2000 36.68
2001 35.98
2002 38.332003 31.452004 39.29
SU
IR C
AT
CH
ME
NT
16003 RIVER CLODIAGH @ RATHKENNAN
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2004.(no missing years)
16003 RIVER CLODIAGH @ RATHKENNANEV1
50010050251052
0
10
20
30
40
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Considerable number of summer peaks are observed
2.Linear Score (subjective) :EV1=4, LO2=3, LN2=3
3.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 236.00 N= 48
Year AMF(m3/s)
1954 23.48 Mean 22.166 M100 22.166 L1 22.166 L-Cv 0.111
1955 15.90 Median 21.372 M110 12.311 L2 2.456 L-Skew 0.069
1956 18.92 Std.Dev. 4.332 M120 8.645 L3 0.170 L-Kur 0.108
1957 28.91 CV 0.195 M130 6.703 L4 0.265
1958 22.81 HazenS. 0.530
1959 28.17
1960 30.14
1961 18.51
1962 25.55
1963 27.21
1964 24.74
1965 20.61
1966 20.66
1967 20.48
1968 34.89
1969 18.40
1970 19.03
1971 20.08
1972 16.00
1973 26.61
1974 25.44
1975 14.10
1976 17.59
1977 22.92
1978 22.92
1979 21.48
1980 22.47
1981 20.29
1982 22.92
1983 26.85
1984 25.79
1985 22.70
1986 18.92
1987 20.51
1988 17.39
1989 26.38
1991 19.44
1992 14.47
1993 19.44
1994 24.51
1995 21.26
1996 26.38
1997 25.55
1998 20.94
1999 26.61
2000 21.15
2001 16.88
2002 17.59
SU
IR C
AT
CH
ME
NT
16004 RIVER SUIR @ THURLES
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2002.(missing year 90)
16004 RIVER SUIR @ THURLESEV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=4, LN2=5
2.Shape Codes (subjective) :EV1=L1, LO2=U1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 87.00 N= 30
Year AMF(m3/s)
1975 22.43 Mean 23.106 M100 23.106 L1 23.106 L-Cv 0.098
1976 17.72 Median 21.788 M110 12.681 L2 2.256 L-Skew 0.203
1977 25.90 Std.Dev. 4.091 M120 8.906 L3 0.459 L-Kur 0.133
1978 21.38 CV 0.177 M130 6.921 L4 0.300
1979 18.92 HazenS. 1.329
1980 21.85
1981 19.25
1982 28.01
1983 27.51
1984 20.59
1985 26.02
1986 18.59
1987 21.73
1988 24.80
1989 26.76
1990 21.27
1991 22.19
1992 20.81
1993 24.80
1994 26.02
1995 18.59
1996 34.31
1997 32.69
1998 24.80
1999 20.14
2000 20.81
2001 21.73
2002 20.59
2003 17.94
2004 25.04SU
IR C
AT
CH
ME
NT
16005 RIVER MULTEEN @ AUGHNAGROSS
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing year )
16005 RIVER MULTEEN @ AUGHNAGROSS EV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=2, LN2=2
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1120.00 N= 51
Year AMF(m3/s)
1954 95.33 Mean 90.663 M100 90.663 L1 90.663 L-Cv 0.072
1955 74.12 Median 92.323 M110 48.590 L2 6.517 L-Skew -0.062
1956 85.93 Std.Dev. 11.350 M120 33.412 L3 -0.405 L-Kur 0.055
1957 80.65 CV 0.125 M130 25.515 L4 0.358
1958 71.39 HazenS. -0.324
1959 85.44
1960 110.91
1961 61.69
1962 72.75
1963 86.42
1964 101.46
1965 96.85
1966 88.86
1967 83.04
1968 110.38
1969 98.38
1970 79.71
1971 80.18
1972 78.77
1973 100.68
1974 89.10
1975 79.24
1976 89.35
1977 93.32
1978 101.46
1979 85.93
1980 84.00
1981 81.60
1982 93.57
1983 110.11
1984 78.30
1985 95.08
1986 92.32
1987 105.10
1988 86.42
1989 103.27
1990 93.07
1991 79.24
1992 73.44
1993 101.46
1994 102.49
1995 101.20
1996 102.49
1997 97.36
1998 92.32
1999 97.87
2000 101.97
2001 95.84
2002 95.842003 76.432004 101.72
SU
IR C
AT
CH
ME
NT
16008 RIVER SUIR @ NEW BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2004.(no missing years)
16008 RIVER SUIR @ NEW BRIDGEEV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.6
1.65
1.7
1.75
1.8
1.85
1.9
1.95
2
2.05
2.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot.
2.Linear Score (subjective) :EV1=2, LO2=4, LN2=3
3.Shape Codes (subjective) :EV1=D2, LO2=L2, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1602.00 N= 52
Year AMF(m3/s)
1953 157.28 Mean 159.294 M100 159.294 L1 159.294 L-Cv 0.099
1954 173.75 Median 162.214 M110 87.526 L2 15.759 L-Skew -0.096
1955 116.86 Std.Dev. 27.397 M120 60.724 L3 -1.520 L-Kur 0.052
1956 185.90 CV 0.172 M130 46.576 L4 0.815
1957 168.98 HazenS. -0.409
1958 115.84
1959 150.41
1960 203.45
1961 103.78
1962 131.61
1963 151.55
1964 188.37
1965 177.36
1966 148.15
1967 121.01
1968 197.11
1969 150.41
1970 133.77
1971 147.36
1972 116.35
1973 168.98
1974 150.41
1975 163.67
1976 128.93
1977 153.83
1978 187.14
1979 168.39
1980 125.21
1981 139.23
1982 168.98
1983 188.37
1984 112.78
1985 173.75
1986 136.49
1987 178.58
1988 181.01
1989 206.00
1990 156.12
1991 158.43
1992 114.81
1993 174.95
1994 187.14
1995 181.01
1996 183.45
1997 181.01
1998 180.40
1999 170.17
2000 200.90
2001 160.752002 159.592003 110.75
2004 192.72
16009 RIVER SUIR @ CAHIR PARK
Moments PWM L-Moments
SU
IR C
AT
CH
ME
NT
Annual Maximum Floods 1953 to 2004.(no missing year)
16009 RIVER SUIR @ CAHIR PARKEV1
50010050251052
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=2, LO2=3, LN2=3
3.Shape Codes (subjective) :EV1=D2X, LO2=D2X, LN2=D1X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1258.00 N= 33
Year AMF(m3/s)
1971 210.21 Mean 293.201 M100 293.201 L1 293.201 L-Cv 0.128
1972 212.04 Median 285.111 M110 165.365 L2 37.529 L-Skew 0.175
1973 343.43 Std.Dev. 67.617 M120 117.590 L3 6.553 L-Kur 0.119
1974 236.97 CV 0.231 M130 92.050 L4 4.477
1975 262.85 HazenS. 1.246
1976 202.94
1977 252.50
1978 335.05
1979 251.96
1980 502.74
1981 310.31
1982 256.29
1983 296.47
1984 207.98
1985 364.47
1986 253.47
1987 327.44
1988 404.64
1989 336.24
1990 256.29
1991 251.96
1992 214.08
1993 285.11
1994 392.73
1995 291.91
1996 224.39
1997 333.85
1998 378.95
1999 293.05
2000 348.26
2001 307.99
2002 257.38
2003 271.68
MU
NS
TE
R B
LA
CK
WA
TE
R C
AT
CH
ME
NT
18003 RIVER MUNSTER BLACKWATER @ KILLAVULLEN
Moments PWM L-Moments
Annual Maximum Floods 1971 to 2003.( no missing year)
18003 RIVER MUNSTER BLACKWATER @ KILLAVULLEN EV1
50010050251052
0
100
200
300
400
500
600
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
100
200
300
400
500
600
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 324.00 N= 46
Year AMF(m3/s)
1955 32.00 Mean 30.963 M100 30.963 L1 30.963 L-Cv 0.086
1956 39.80 Median 31.200 M110 16.820 L2 2.677 L-Skew 0.043
1957 31.80 Std.Dev. 5.348 M120 11.679 L3 0.115 L-Kur 0.333
1959 31.50 CV 0.173 M130 9.019 L4 0.891
1960 35.20 HazenS. 1.253
1961 32.60
1962 30.10
1963 35.20
1965 39.80
1966 30.90
1967 27.90
1968 52.70
1969 30.90
1972 31.20
1973 33.20
1974 29.10
1975 29.00
1976 27.20
1977 28.30
1978 31.20
1979 32.30
1980 30.90
1981 29.90
1982 31.50
1983 33.90
1984 27.90
1985 21.00
1986 26.80
1987 31.50
1988 32.80
1989 34.60
1990 26.80
1991 24.50
1992 21.80
1993 32.00
1994 33.50
1995 32.20
1996 27.90
1997 31.20
1998 32.50
1999 27.90
2000 36.40
2001 26.80
2002 28.70
2003 17.10
2004 32.30
BA
LC
KW
AT
ER
(MU
NS
TE
R)
CA
TC
HM
EN
T18004 RIVER BALLYNAMONA @ AWBEG
Moments PWM L-Moments
AMFloods 1955 to 2004.(missing years:'58,64,70,71)
18004 RIVER BALLYNAMONA @ AWBEGEV1
50010050251052
0
10
20
30
40
50
60
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=2, LN2=2
2.Shape Codes (subjective) :EV1=S2, LO2=S2, LN2=S2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 363.00 N= 50
Year AMF(m3/s)
1955 49.09 Mean 56.687 M100 56.687 L1 56.687 L-Cv 0.142
1956 46.24 Median 53.054 M110 32.377 L2 8.068 L-Skew 0.224
1957 70.58 Std.Dev. 15.191 M120 23.231 L3 1.806 L-Kur 0.182
1958 46.24 CV 0.268 M130 18.327 L4 1.468
1959 53.69 HazenS. 1.629
1960 61.05
1961 46.24
1962 37.28
1963 61.94
1964 56.68
1965 59.29
1966 46.65
1967 45.84
1968 98.11
1969 40.33
1970 51.58
1971 48.89
1972 44.44
1973 67.35
1974 44.64
1975 44.64
1976 41.10
1977 51.58
1978 60.17
1979 62.39
1980 48.68
1981 66.89
1982 63.95
1983 49.51
1984 43.65
1985 65.53
1986 50.96
1987 62.83
1988 75.74
1989 78.61
1990 33.41
1991 54.33
1992 53.27
1993 55.61
1994 66.44
1995 50.54
1996 52.84
1997 90.19
1998 67.81
1999 42.27
2000 109.73
2001 46.65
2002 65.08
2003 35.982004 67.81
18005 RIVER FUNSHION @ DOWNING BRIDGE
Moments PWM L-Moments
MU
NS
TE
R B
LA
CK
WA
TE
R C
AT
CH
ME
NT
Annual Maximum Floods 1955 to 2004.(no missing years)
18005 RIVER FUNSHION @ DOWNING BRIDGEEV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=L2X, LO2=U2, LN2=L2X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 106.00 N= 48
Year AMF(m3/s)
1956 15.71 Mean 15.868 M100 15.868 L1 15.868 L-Cv 0.095
1957 16.59 Median 15.417 M110 8.688 L2 1.507 L-Skew 0.095
1958 14.25 Std.Dev. 2.655 M120 6.067 L3 0.143 L-Kur 0.119
1959 13.42 CV 0.167 M130 4.690 L4 0.180
1960 16.59 HazenS. 0.477
1961 11.13
1962 14.85
1963 14.37
1964 14.25
1965 18.65
1966 12.26
1967 11.47
1968 19.71
1969 11.80
1970 14.73
1971 16.09
1972 16.34
1973 22.03
1974 14.61
1975 19.18
1976 16.09
1977 21.75
1978 19.31
1979 19.31
1980 15.71
1981 19.06
1982 19.33
1983 17.50
1984 14.13
1985 15.48
1987 15.36
1988 14.99
1989 14.99
1990 12.38
1991 13.55
1992 12.38
1993 15.98
1994 17.11
1995 17.75
1996 12.50
1997 16.23
1998 14.73
1999 15.34
2000 19.05
2001 14.49
2002 20.12
2003 14.73
2004 14.31
19001 RIVER OWENBOY @ BALLEA UPPER
Moments PWM L-Moments
LE
E C
AT
CH
ME
NT
Annual Maximum Floods 1956 to 2004.(missing year 86)
19001 RIVER OWENBOY @ BALLEA UPPEREV1
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521
1.05
1.1
1.15
1.2
1.25
1.3
1.35
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=4, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=S1X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 75.00 N= 28
Year AMF(m3/s)
1977 29.60 Mean 24.631 M100 24.631 L1 24.631 L-Cv 0.196
1978 29.90 Median 22.400 M110 14.726 L2 4.821 L-Skew 0.029
1979 27.10 Std.Dev. 8.285 M120 10.644 L3 0.140 L-Kur 0.037
1980 20.70 CV 0.336 M130 8.371 L4 0.177
1981 33.10 HazenS. 0.122
1982 31.10
1983 18.20
1984 32.40
1985 37.30
1986 27.90
1987 37.10
1988 22.70
1989 17.10
1990 10.10
1991 22.00
1992 14.70
1993 37.50
1994 30.10
1995 20.40
1996 12.43
1997 28.37
1998 19.06
1999 18.19
2000 38.70
2001 21.10
2002 22.10
2003 12.00
2004 18.70
19020 RIVER OWENNACURRA @ BALLYEDMOND
Moments PWM L-Moments
OW
EN
BO
Y C
AT
CH
ME
NT
Annual Maximum Floods 1977 to 2004.(no missing years)
19020 RIVER OWENNACURRA @ BALLYEDMONDEV1
50010050251052
0
5
10
15
20
25
30
35
40
45
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
50
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=4, LN2=3
3.Shape Codes (subjective) :EV1=D2, LO2=S1, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 196.00 N= 45
Year AMF(m3/s)
1960 105.33 Mean 97.392 M100 97.392 L1 97.392 L-Cv 0.180
1961 77.36 Median 99.054 M110 57.469 L2 17.546 L-Skew 0.128
1962 127.55 Std.Dev. 32.346 M120 41.611 L3 2.245 L-Kur 0.181
1963 60.75 CV 0.332 M130 32.964 L4 3.183
1964 109.57 HazenS. 1.216
1965 100.28
1966 76.46
1967 119.03
1968 122.38
1969 70.89
1970 56.65
1971 61.26
1972 103.27
1973 210.07
1974 98.22
1975 99.05
1976 38.04
1977 64.92
1978 71.19
1979 76.26
1980 104.13
1981 71.91
1982 90.07
1983 105.84
1984 74.07
1985 120.08
1986 79.24
1987 84.57
1988 111.08
1989 124.70
1990 99.89
1991 135.17
1992 43.20
1993 104.98
1994 164.72
1995 72.63
1996 94.10
1997 127.52
1998 89.28
1999 102.42
2000 122.84
2001 104.13
2002 73.35
2003 74.80
2004 159.42
23001 RIVER GALEY @ INCH BRIDGE
Moments PWM L-Moments
FE
AL
E C
AT
CH
ME
NT
Annual Maximum Floods 1960 to 2004.(no missing year)
23001 RIVER GALEY @ INCH BRIDGEEV1
50010050251052
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
GLO
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 60.00 N= 18
Year AMF(m3/s)
1974 15.72 Mean 16.869 M100 16.869 L1 16.869 L-Cv 0.146
1975 14.03 Median 15.657 M110 9.666 L2 2.464 L-Skew 0.386
1976 13.65 Std.Dev. 4.967 M120 7.014 L3 0.952 L-Kur 0.327
1977 11.95 CV 0.294 M130 5.604 L4 0.805
1978 12.30 HazenS. 2.984
1979 15.33
1980 16.94
1981 13.65
1982 14.67
1983 15.59
1984 26.27
1985 31.74
1986 17.12
1987 16.98
1988 19.12
1989 19.12
1990 16.57
1991 12.88
23012 RIVER LEE @ BALLYMULLEN
Moments PWM L-Moments
FE
AL
E C
AT
CH
ME
NT
Annual Maximum Floods 1974 to 1991.(no missing year )
23012 RIVER LEE @ BALLYMULLENEV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1. High-outlier is observed
2. Two highest peaks come out as summer peaks
3. Linear Score(subjective):EV1=2, LO2=1, LN2=1 *For Explanation of Scores and Codes see in Introductory Page
4. Shape Codes(subjective):EV1=U2, LO2=U2, LN2=U2
A2 A (km2)= 231.00 N= 27
Year AMF(m3/s)
1978 16.18 Mean 24.061 M100 24.061 L1 24.061 L-Cv 0.109
1979 14.20 Median 23.491 M110 13.337 L2 2.614 L-Skew 0.061
1980 22.01 Std.Dev. 4.616 M120 9.354 L3 0.160 L-Kur 0.172
1981 23.28 CV 0.192 M130 7.254 L4 0.451
1982 27.85 HazenS. 0.318
1983 27.85
1984 22.96
1985 22.64
1986 23.49
1987 25.97
1988 29.19
1989 35.21
1990 20.67
1991 20.15
1992 19.75
1993 24.45
1994 31.47
1995 27.74
1996 20.97
1997 23.70
1998 20.87
1999 25.86
2000 30.33
2001 26.08
2002 21.80
2003 19.95
2004 24.99
MA
IGU
E C
AT
CH
ME
NT
24002 RIVER CAMOGUE @ GRAY'S BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1978 to 2004.(no missing year )
24002 RIVER CAMOGUE @ GRAY'S BRIDGE EV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=5, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L2X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 805.00 N= 30
Year AMF(m3/s)
1975 131.83 Mean 120.957 M100 120.957 L1 120.957 L-Cv 0.151
1976 119.72 Median 119.127 M110 69.616 L2 18.274 L-Skew 0.055
1977 53.93 Std.Dev. 31.826 M120 49.623 L3 0.999 L-Kur 0.092
1978 86.28 CV 0.263 M130 38.796 L4 1.673
1979 96.94 HazenS. 0.283
1980 109.23
1981 81.15
1982 133.07
1983 160.10
1984 86.28
1985 148.27
1986 130.60
1987 131.83
1988 162.78
1989 194.86
1990 93.69
1991 94.77
1992 83.19
1993 123.30
1994 164.13
1995 117.35
1996 144.40
1997 118.53
1998 165.48
1999 109.23
2000 156.11
2001 112.68
2002 96.94
2003 92.08
2004 129.98
24008 RIVER MAIGUE @ CASTLEROBERTS
Moments PWM L-Moments
MA
IGU
E C
AT
CH
ME
NT
Annual Maximum Floods 1975 to 2004.(no missing years)
24008 RIVER MAIGUE @ CASTLEROBERTSEV1
50010050251052
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=5, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L2X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 39.70 N= 20
Year AMF(m3/s)
1985 5.00 Mean 9.828 M100 9.828 L1 9.828 L-Cv 0.233
1986 9.31 Median 9.795 M110 6.060 L2 2.293 L-Skew 0.123
1987 7.57 Std.Dev. 4.069 M120 4.469 L3 0.282 L-Kur 0.164
1988 9.98 CV 0.414 M130 3.578 L4 0.375
1989 11.50 HazenS. 1.118
1990 3.80
1991 5.61
1992 4.99
1993 6.17
1994 15.00
1995 10.00
1996 6.73
1997 9.41
1998 13.60
1999 9.96
2000 20.50
2001 14.20
2002 9.63
2003 11.30
2004 12.30
24022 RIVER MAHORE @ HOSPITAL
Moments PWM L-Moments
SH
AN
NO
N E
ST
ST
H C
AT
CH
ME
NT
Annual Maximum Floods 1985 to 2004.(no missing years)
24022 RIVER MAHORE @ HOSPITALEV1
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
LO2
2 5 10 25 50 100 500
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.No summer peak is observed in this AM series
2.Linear Score (subjective) :EV1=5, LO2=3, LN2=5
3.Shape Codes (subjective) :EV1=L1, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 764.00 N= 28
Year AMF(m3/s)
1977 57.52 Mean 135.469 M100 135.469 L1 135.469 L-Cv 0.152
1978 103.65 Median 140.010 M110 78.035 L2 20.601 L-Skew -0.036
1979 92.58 Std.Dev. 35.757 M120 55.334 L3 -0.738 L-Kur 0.130
1980 103.65 CV 0.264 M130 43.088 L4 2.687
1981 80.59 HazenS. -0.216
1982 140.01
1983 170.80
1984 77.70
1985 155.08
1986 140.01
1987 143.72
1988 183.02
1989 206.35
1990 125.61
1991 125.61
1992 110.21
1993 147.46
1994 178.91
1995 129.14
1996 157.01
1997 141.86
1998 178.91
1999 130.93
2000 185.09
2001 141.86
2002 118.66
2003 110.21
2004 157.01
MA
IGU
E C
AT
CH
ME
NT
24082 RIVER MAIGUE @ ISLANDMORE
Moments PWM L-Moments
Annual Maximum Floods 1977 to 2004.( no missing year )
24082 RIVER MAIGUE @ ISLANDMORE EV1
50010050251052
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=2, LO2=5, LN2=3
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 646.00 N= 49
Year AMF(m3/s)
1953 148.18 Mean 133.953 M100 133.953 L1 133.953 L-Cv 0.093
1954 144.32 Median 132.876 M110 73.234 L2 12.516 L-Skew -0.016
1955 126.62 Std.Dev. 22.092 M120 50.875 L3 -0.201 L-Kur 0.159
1956 146.25 CV 0.165 M130 39.169 L4 1.988
1957 146.25 HazenS. -0.186
1958 127.24
1959 146.25
1960 170.52
1961 132.88
1962 105.89
1963 132.88
1964 168.52
1965 178.58
1966 144.32
1967 164.54
1968 175.89
1969 146.89
1970 122.90
1971 137.30
1973 161.90
1974 161.24
1975 159.26
1977 133.43
1978 119.78
1979 127.90
1981 90.60
1982 139.28
1983 147.89
1984 95.92
1985 137.58
1986 112.60
1987 114.17
1988 128.67
1989 154.92
1990 122.14
1991 126.64
1992 119.09
1993 129.38
1994 150.39
1995 114.33
1996 134.94
1997 126.10
1998 128.83
1999 114.33
2000 133.26
2001 84.60
2002 85.54
2003 111.20
2004 131.59
25001 RIVER MULKEAR @ ANNACOTTY
Moments PWM L-Moments
MU
LK
EA
R C
AT
CH
ME
NT
Annual Maximum Floods '53 - '04.(missing years'72,76,80 )
25001 RIVER MULKEAR @ ANNACOTTYEV1
50010050251052
0
50
100
150
200
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
GLO
50010050251052
0
50
100
150
200
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
1.8
1.85
1.9
1.95
2
2.05
2.1
2.15
2.2
2.25
2.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=2, LO2=4, LN2=3
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=L2X
4.Presence of embankment: 80% of values within embankment and top 20% overflow embankment
A2 A (km2)= 223.00 N= 51
Year AMF(m3/s)
1953 65.07 Mean 61.145 M100 61.145 L1 61.145 L-Cv 0.089
1954 62.24 Median 62.641 M110 33.291 L2 5.437 L-Skew -0.137
1955 58.67 Std.Dev. 9.519 M120 22.976 L3 -0.744 L-Kur 0.060
1956 68.76 CV 0.156 M130 17.563 L4 0.324
1957 66.70 HazenS. -0.646
1958 54.40
1959 70.84
1960 74.64
1961 52.12
1962 48.02
1963 65.88
1964 74.64
1965 73.79
1966 63.45
1967 74.64
1968 72.52
1969 69.17
1970 63.85
1972 72.10
1973 70.84
1974 71.68
1975 69.17
1976 52.50
1977 58.67
1978 56.72
1979 69.59
1980 61.04
1981 39.82
1982 68.35
1983 67.52
1984 44.39
1985 66.70
1986 47.29
1987 49.50
1988 59.46
1989 62.64
1990 56.33
1991 60.64
1992 51.74
1993 56.72
1994 65.47
1995 49.50
1996 65.88
1997 66.70
1998 70.01
1999 56.72
2000 59.46
2001 45.47
2002 38.45
2003 49.87
2004 58.08
25002 RIVER NEWPORT @ BARRINGTONS BRIDGE
Moments PWM L-Moments
LO
WE
R S
HA
NN
ON
CA
TC
HM
EN
T
Annual Maximum Floods 1953 to 2004.(missing years:71 )
25002 RIVER NEWPORT @ BARRINGTONS BRIDGE
50010050251052
0
10
20
30
40
50
60
70
80
90
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
90
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.5
1.55
1.6
1.65
1.7
1.75
1.8
1.85
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=1, LO2=3, LN2=2
3.Shape Codes (subjective) :EV1=D1, LO2=S1, LN2=D2
4.Presence of embankment: 80% of values within embankment and top 20% overflow embankment
A2 A (km2)= 190.00 N= 46
Year AMF(m3/s)
1954 30.44 Mean 28.732 M100 28.732 L1 28.732 L-Cv 0.059
1955 26.62 Median 29.633 M110 15.220 L2 1.708 L-Skew -0.192
1956 31.55 Std.Dev. 3.052 M120 10.377 L3 -0.329 L-Kur 0.101
1957 29.99 CV 0.106 M130 7.878 L4 0.172
1958 24.66 HazenS. -0.976
1960 32.39
1961 23.73
1962 23.73
1965 31.72
1966 28.33
1967 31.40
1969 25.49
1970 20.17
1971 23.65
1972 26.36
1973 33.42
1974 31.19
1975 31.05
1976 22.86
1977 29.74
1978 29.89
1979 29.31
1980 27.75
1981 27.61
1982 32.52
1983 30.90
1985 30.32
1986 23.65
1987 26.08
1988 27.47
1989 29.17
1990 27.19
1991 28.03
1992 29.60
1993 29.67
1994 31.93
1995 28.74
1996 30.76
1997 30.68
1998 30.90
1999 30.46
2000 32.67
2001 28.60
2002 27.05
2003 30.25
2004 32.00
25005 RIVER DEAD @ SUNVILLE
Moments PWM L-Moments
MU
LK
EA
R C
AT
CH
ME
NT
AMF 1954 to 2004.(missing years '59,63,64,84)
25005 RIVER DEAD @ SUNVILLEEV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=1, LO2=3, LN2=3
3.Shape Codes (subjective) :EV1=D2X, LO2=D1X, LN2=D1X
4.Presence of embankment: 80% of values within embankment and top 20% overflow embankment
A2 A (km2)= 274.00 N= 42
Year AMF(m3/s)
1963 22.02 Mean 23.042 M100 23.042 L1 23.042 L-Cv 0.125
1964 26.87 Median 22.567 M110 12.961 L2 2.880 L-Skew 0.082
1965 24.24 Std.Dev. 5.117 M120 9.160 L3 0.236 L-Kur 0.155
1966 25.05 CV 0.222 M130 7.138 L4 0.447
1967 27.71 HazenS. 0.625
1968 33.72
1969 20.95
1970 16.86
1971 17.56
1972 16.17
1973 22.02
1974 20.04
1975 16.86
1976 17.56
1977 18.13
1978 24.88
1979 20.49
1980 17.42
1981 13.13
1982 15.08
1983 22.80
1984 25.21
1985 23.75
1986 22.33
1987 24.56
1988 20.95
1989 36.14
1990 22.02
1991 24.40
1992 28.74
1993 26.03
1994 34.09
1995 18.57
1996 19.45
1997 27.20
1998 23.43
1999 26.70
2000 25.21
2001 22.33
2002 30.84
2003 20.79
2004 25.46
BR
OS
NA
C
AT
CH
ME
NT
25016 RIVER CLODIAGH @ RAHAN
Moments PWM L-Moments
Annual Maximum Floods 1963 to 2004.(no missing year )
25016 RIVER CLODIAGH @ RAHANEV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=4, LN2=5
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 493.00 N= 44
Year AMF(m3/s)
1961 24.32 Mean 28.028 M100 28.028 L1 28.028 L-Cv 0.081
1962 35.80 Median 28.578 M110 15.153 L2 2.279 L-Skew -0.034
1963 23.89 Std.Dev. 3.939 M120 10.469 L3 -0.077 L-Kur 0.067
1964 29.48 CV 0.141 M130 8.021 L4 0.153
1965 26.38 HazenS. -0.134
1966 26.77
1967 26.19
1968 31.06
1969 20.92
1970 22.37
1971 22.96
1972 24.06
1973 30.09
1974 29.48
1975 22.06
1976 25.09
1977 22.33
1978 29.08
1979 26.81
1980 28.58
1981 25.65
1982 30.60
1983 31.22
1984 28.38
1985 32.69
1986 28.58
1987 29.79
1988 25.28
1989 32.27
1990 26.23
1991 27.00
1992 32.90
1993 29.28
1994 33.11
1995 29.18
1996 26.04
1997 32.48
1998 30.40
1999 33.33
2000 35.27
2001 31.22
2002 31.22
2003 19.89
2004 23.51
LIT
TL
E B
RO
SN
A C
AT
CH
ME
NT
25021 RIVER LITTLE BROSNA @ CROGHAN
Moments PWM L-Moments
Annual Maximum Floods 1961 to 2004.(no missing years)
25021 RIVER LITTLE BROSNA @ CROGHAN EV1
500100502510520
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=4, LN2=5
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 301.00 N= 33
Year AMF(m3/s)
1972 35.55 Mean 54.120 M100 54.120 L1 54.120 L-Cv 0.139
1973 63.72 Median 56.477 M110 30.824 L2 7.529 L-Skew -0.020
1974 57.25 Std.Dev. 12.923 M120 21.780 L3 -0.149 L-Kur -0.020
1975 39.75 CV 0.239 M130 16.873 L4 -0.150
1976 42.25 HazenS. -0.089
1977 38.22
1978 50.32
1979 37.92
1980 38.74
1981 36.02
1982 50.95
1983 59.97
1984 31.94
1985 59.62
1986 50.28
1987 61.58
1988 45.67
1989 74.06
1990 60.69
1991 50.95
1992 38.74
1993 59.62
1994 72.91
1995 63.76
1996 72.91
1997 63.39
1998 70.82
1999 71.04
2000 69.53
2001 56.48
2002 49.98
2003 43.13
2004 68.22
NE
NA
GH
CA
TC
HM
EN
T25029 RIVER NENAGH @ CLARIANNA
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.(no missing years)
25029 RIVER NENAGH @ CLARIANNA EV1
50010050251052
0
10
20
30
40
50
60
70
80
90
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
GLO
50010050251052
0
10
20
30
40
50
60
70
80
90
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=3, LN2=4
3.Shape Codes (subjective) :EV1=S2, LO2=S2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 12.00 N= 24
Year AMF(m3/s)
1977 1.15 Mean 1.503 M100 1.503 L1 1.503 L-Cv 0.166
1978 1.47 Median 1.482 M110 0.876 L2 0.250 L-Skew -0.082
1979 2.21 Std.Dev. 0.432 M120 0.622 L3 -0.020 L-Kur 0.115
1980 1.48 CV 0.287 M130 0.484 L4 0.029
1981 1.48 HazenS. -0.482
1982 2.07
1983 1.79
1984 2.13
1985 1.33
1986 0.92
1987 1.76
1988 0.63
1989 1.92
1990 1.04
1991 1.44
1992 1.88
1993 1.52
1994 1.92
1995 0.98
1996 0.73
1997 1.39
2000 1.67
2001 1.48
2002 1.69
Sh
an
no
n E
st
Sth
CA
TC
HM
EN
T
25034 RIVER L. ENNELL TRIB @ ROCHFORT
Moments PWM L-Moments
AM Floods 1977 to 2002.(missing year '98,99 )
25034 RIVER L. ENNELL TRIB @ ROCHFORT
50010050251052
0
1
1
2
2
3
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
1
1
2
2
3
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=4, LN2=3
2.Shape Codes (subjective) :EV1=D2, LO2=L2, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 30.00 N= 20
Year AMF(m3/s)
1980 3.34 Mean 3.777 M100 3.777 L1 3.777 L-Cv 0.153
1981 3.03 Median 3.590 M110 2.178 L2 0.580 L-Skew 0.204
1982 2.55 Std.Dev. 1.034 M120 1.569 L3 0.118 L-Kur 0.181
1983 3.55 CV 0.274 M130 1.240 L4 0.105
1984 2.54 HazenS. 1.324
1985 5.63
1986 3.63
1987 4.39
1988 3.49
1989 4.02
1990 3.64
1991 3.06
1992 3.96
1993 3.84
1994 5.07
1995 3.51
1996 2.78
1997 6.29
1998 4.80
2004 2.42
Sh
an
no
n L
wr
CA
TC
HM
EN
T25040 RIVER BUNOW @ ROSCREA
Moments PWM L-Moments
AMF 1980 to 2004.(missing year:'99-'03 )
25040 RIVER BUNOW @ ROSCREA
50010050251052
0
1
2
3
4
5
6
7
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
1
2
3
4
5
6
7
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 98.90 N= 33
Year AMF(m3/s)
1961 18.78 Mean 25.383 M100 25.383 L1 25.383 L-Cv 0.188
1962 13.78 Median 22.700 M110 15.075 L2 4.768 L-Skew 0.248
1963 17.06 Std.Dev. 8.676 M120 11.042 L3 1.185 L-Kur 0.149
1964 45.75 CV 0.342 M130 8.823 L4 0.711
1965 22.50 HazenS. 1.229
1966 33.03
1967 25.41
1968 41.68
1969 17.59
1970 21.16
1971 18.99
1972 23.99
1973 24.94
1974 36.39
1983 40.50
1984 21.80
1985 23.10
1986 22.70
1987 21.80
1988 21.90
1989 44.10
1992 14.30
1993 24.20
1995 21.40
1996 32.10
1997 29.30
1998 25.24
1999 26.83
2000 14.90
2001 19.60
2002 18.40
2003 18.80
2004 35.59
SH
AN
NO
N L
WR
. C
AT
CH
ME
NT
25044 RIVER KILMASTULLA @ COOLE
Moments PWM L-Moments
AM Floods '61 to '04.(missing year '75-82,90,91,94)
25044 RIVER KILMASTULLA @ COOLE
50010050251052
0
10
20
30
40
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 5001005025105
0
10
20
30
40
50
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.8
1
1.2
1.4
1.6
1.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=S1, LO2=S1, LN2=S2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 254.00 N= 18
Year AMF(m3/s)
1986 10.40 Mean 12.788 M100 12.788 L1 12.788 L-Cv 0.200
1987 14.60 Median 13.650 M110 7.675 L2 2.563 L-Skew -0.069
1988 9.52 Std.Dev. 4.548 M120 5.514 L3 -0.177 L-Kur 0.231
1989 22.50 CV 0.356 M130 4.335 L4 0.592
1990 14.30 HazenS. -0.310
1991 14.30
1993 14.00
1994 18.02
1995 9.06
1996 11.37
1997 12.50
1998 10.50
1999 4.69
2000 13.30
2001 16.30
2002 16.00
2003 3.42
2004 15.40
Sh
an
no
n L
wr
CA
TC
HM
EN
T25124 RIVER BROSNA @ BALLYNAGORE
Moments PWM L-Moments
AMF 1986 to 2004.(missing year:'92)
25124 RIVER BROSNA @ BALLYNAGORE
50010050251052
0
5
10
15
20
25
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=4, LN2=2
2.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 626.00 N= 53
Year AMF(m3/s)
1952 40.07 Mean 56.983 M100 56.983 L1 56.983 L-Cv 0.111
1953 49.74 Median 56.562 M110 31.660 L2 6.337 L-Skew 0.224
1954 104.87 Std.Dev. 12.805 M120 22.399 L3 1.417 L-Kur 0.293
1955 36.95 CV 0.225 M130 17.544 L4 1.857
1956 56.81 HazenS. 2.295
1957 53.03
1958 47.59
1959 53.03
1960 58.41
1961 62.33
1962 49.33
1963 59.31
1964 67.28
1965 83.46
1966 41.50
1967 68.74
1968 103.82
1969 62.52
1970 56.56
1971 41.50
1972 46.39
1973 63.73
1974 57.19
1975 56.56
1976 42.92
1977 60.62
1978 50.61
1979 56.81
1980 50.61
1981 45.96
1982 55.75
1983 53.56
1984 55.75
1985 57.35
1986 57.89
1987 57.08
1988 44.08
1989 69.21
1990 72.82
1991 58.43
1992 59.52
1993 52.12
1994 50.10
1995 61.73
1996 56.28
1997 47.16
1998 52.12
1999 64.55
2000 47.16
2001 58.97
2002 49.61
2003 51.11
2004 59.52
SU
CK
CA
TC
HM
EN
T26002 RIVER SUCK @ ROOKWOOD
Moments PWM L-Moments
Annual Maximum Floods 1952 to 2004.(no missing years )
26002 RIVER SUCK @ ROOKWOODEV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=1, LN2=2
2.Shape Codes (subjective) :EV1=S2X, LO2=S2X, LN2=L2X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1050.00 N= 51
Year AMF(m3/s)
1954 116.66 Mean 92.797 M100 92.797 L1 92.797 L-Cv 0.101
1955 60.74 Median 93.211 M110 51.069 L2 9.341 L-Skew 0.035
1956 91.54 Std.Dev. 16.438 M120 35.657 L3 0.326 L-Kur 0.141
1957 72.97 CV 0.177 M130 27.550 L4 1.322
1958 66.00 HazenS. 0.273
1959 94.05
1960 84.27
1961 86.65
1962 77.37
1963 89.08
1964 93.21
1965 100.08
1966 64.00
1967 110.95
1968 135.94
1969 89.89
1970 82.70
1971 64.66
1972 71.54
1973 94.90
1974 93.21
1975 81.16
1976 72.97
1977 109.09
1978 78.87
1979 98.33
1980 78.12
1981 78.87
1982 91.54
1983 100.96
1984 97.47
1985 85.06
1986 100.08
1987 91.54
1988 72.97
1989 116.66
1990 118.60
1991 87.45
1992 101.84
1993 94.90
1994 112.84
1995 98.33
1996 110.02
1997 99.20
1998 94.90
1999 123.55
2000 91.54
2001 115.70
2002 93.21
2003 85.45
2004 110.95
UP
PE
R S
HA
NN
ON
CA
TC
HM
EN
T26005 RIVER SUCK @ DERRYCAHILL
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2004.(no missing years)
26005 RIVER SUCK @ DERRYCAHILLEV1
500100502510520
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.6
1.7
1.8
1.9
2
2.1
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=4, LN2=5
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 97.00 N= 35
Year AMF(m3/s)
1970 16.56 Mean 13.659 M100 13.659 L1 13.659 L-Cv 0.090
1971 16.56 Median 13.218 M110 7.445 L2 1.231 L-Skew 0.202
1972 14.17 Std.Dev. 2.201 M120 5.210 L3 0.249 L-Kur 0.110
1973 17.52 CV 0.161 M130 4.038 L4 0.136
1974 13.39 HazenS. 0.929
1975 11.90
1976 13.22
1977 14.17
1978 16.00
1979 13.43
1980 12.34
1981 10.34
1982 11.99
1983 13.68
1984 12.34
1985 15.80
1986 11.75
1987 18.76
1988 12.11
1989 13.06
1990 13.80
1991 10.29
1992 14.43
1993 11.93
1994 12.52
1995 13.06
1996 12.11
1997 11.99
1998 12.05
1999 15.47
2000 10.95
2001 13.31
2002 18.34
2003 11.99
2004 16.74UP
PE
R S
HA
NN
ON
CA
TC
HM
EN
T26009 RIVER BLACK @ BELLANTRA BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1970 to 2004.(no missing years)
26009 RIVER BLACK @ BELLANTRA BRIDGE EV1
500100502510520
5
10
15
20
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
5
10
15
20
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.9
0.95
1
1.05
1.1
1.15
1.2
1.25
1.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=2
2.Shape Codes (subjective) :EV1=S1, LO2=S1, LN2=S2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 118.00 N= 49
Year AMF(m3/s)
1956 9.99 Mean 9.192 M100 9.192 L1 9.192 L-Cv 0.114
1957 7.11 Median 8.952 M110 5.120 L2 1.047 L-Skew 0.126
1958 7.43 Std.Dev. 1.860 M120 3.609 L3 0.132 L-Kur 0.113
1959 9.52 CV 0.202 M130 2.808 L4 0.118
1960 8.07 HazenS. 0.768
1961 9.87
1962 7.01
1963 10.10
1964 13.06
1965 12.94
1966 8.51
1967 10.46
1968 11.18
1969 10.70
1970 6.50
1971 6.30
1972 8.62
1973 7.64
1974 10.46
1975 7.32
1976 7.53
1977 7.85
1978 7.43
1979 7.85
1980 6.15
1981 8.40
1982 9.18
1983 9.99
1984 7.22
1985 7.22
1986 9.41
1987 8.95
1988 8.18
1989 12.94
1990 13.98
1991 8.07
1992 9.75
1993 8.73
1994 10.10
1995 10.10
1996 9.87
1997 9.64
1998 8.73
1999 12.55
2000 8.62
2001 11.06
2002 9.87
2003 7.74
2004 10.58
OW
EN
UR
E C
AT
CH
ME
NT
26018 RIVER OWENURE @ BELLAVAHAN
Moments PWM L-Moments
Annual Maximum Floods 1956 to 2004.(no missing years)
26018 RIVER OWENURE @ BELLAVAHAN
2 5 10 25 50 100 500
0
2
4
6
8
10
12
14
16
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
16
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.7
0.8
0.9
1
1.1
1.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1071.00 N= 30
Year AMF(m3/s)
1975 42.23 Mean 65.883 M100 65.883 L1 65.883 L-Cv 0.140
1976 59.80 Median 66.345 M110 37.554 L2 9.225 L-Skew -0.112
1977 66.20 Std.Dev. 16.462 M120 26.401 L3 -1.036 L-Kur 0.187
1978 89.88 CV 0.250 M130 20.449 L4 1.724
1979 67.38 HazenS. -0.856
1980 66.49
1981 60.95
1982 81.51
1983 74.64
1984 75.88
1985 51.98
1986 61.81
1987 75.26
1988 43.00
1989 84.06
1990 59.23
1991 53.08
1992 59.80
1993 76.49
1994 88.58
1995 60.38
1996 69.77
1997 69.17
1998 66.20
1999 92.51
2000 73.41
2001 85.98
2002 66.20
2003 25.10
2004 29.49
IN
NY
CA
TC
HM
EN
T26021 RIVER INNY @ BALLYMAHON
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing years)
26021 RIVER INNY @ BALLYMAHON EV1
50010050251052
0
20
40
60
80
100
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=1, LO2=2, LN2=1
3.Shape Codes (subjective) :EV1=D2, LO2=D1, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 950.00 N= 33
Year AMF(m3/s)
1972 3.20 Mean 6.635 M100 6.635 L1 6.635 L-Cv 0.173
1973 7.32 Median 6.487 M110 3.892 L2 1.150 L-Skew 0.091
1974 6.29 Std.Dev. 1.992 M120 2.804 L3 0.104 L-Kur 0.047
1975 5.70 CV 0.300 M130 2.205 L4 0.054
1976 5.04 HazenS. 0.468
1977 4.81
1978 8.20
1979 7.75
1980 6.69
1981 8.08
1982 9.23
1983 8.20
1984 6.09
1985 8.20
1986 6.49
1987 11.06
1988 7.00
1989 10.31
1990 9.82
1991 4.42
1992 5.99
1993 5.22
1994 5.32
1995 4.50
1996 6.69
1997 4.86
1998 4.16
1999 8.88
2000 4.68
2001 4.59
2002 8.25
2003 4.07
2004 7.86
CA
ML
IN C
AT
CH
ME
NT
26022 RIVER FALLAN @ KILMORE
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.(no missing years)
26022 RIVER FALLAN @ KILMOREEV1
50010050251052
0
2
4
6
8
10
12
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
GLO
50010050251052
0
2
4
6
8
10
12
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 48.00 N= 30
Year AMF(m3/s)
1972 21.20 Mean 20.652 M100 20.652 L1 20.652 L-Cv 0.105
1973 26.70 Median 20.100 M110 11.411 L2 2.170 L-Skew 0.193
1974 19.90 Std.Dev. 4.047 M120 8.039 L3 0.418 L-Kur 0.248
1975 21.40 CV 0.196 M130 6.271 L4 0.538
1976 15.80 HazenS. 1.554
1977 21.40
1978 23.20
1979 21.80
1980 18.50
1981 22.60
1982 20.30
1983 20.20
1984 24.70
1985 31.40
1986 21.30
1987 18.10
1988 19.20
1989 19.50
1990 14.60
1991 31.70
1992 14.80
1994 23.30
1995 21.10
1996 20.00
1997 18.50
1998 18.20
1999 19.00
2000 17.78
2001 16.23
2002 17.14
DO
ON
CA
TC
HM
EN
T27001 RIVER CLAUREEN @ INCH BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2002.(missing year '93 )
27001 RIVER CLAUREEN @ INCH BRIDGEEV1
50010050251052
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 168.00 N= 48
Year AMF(m3/s)
1957 26.92 Mean 24.013 M100 24.013 L1 24.013 L-Cv 0.128
1958 13.09 Median 22.916 M110 13.549 L2 3.085 L-Skew 0.093
1959 32.97 Std.Dev. 5.644 M120 9.595 L3 0.288 L-Kur 0.220
1960 28.84 CV 0.235 M130 7.498 L4 0.680
1961 20.10 HazenS. 0.713
1962 16.17
1963 25.08
1964 32.43
1965 19.72
1966 20.88
1967 25.99
1968 40.50
1969 22.92
1970 23.47
1971 21.16
1972 22.09
1973 27.87
1974 25.99
1975 22.50
1976 11.98
1977 26.92
1978 28.35
1979 25.99
1980 25.99
1981 22.92
1982 25.99
1983 28.35
1984 24.64
1985 20.49
1986 20.88
1987 21.28
1988 16.51
1989 26.92
1990 22.50
1991 21.68
1992 18.61
1993 28.35
1994 38.07
1995 15.52
1996 22.09
1997 19.72
1998 22.92
1999 34.06
2000 21.68
2001 25.99
2002 22.50
2003 19.72
2004 23.34
DO
ON
CA
TC
HM
EN
T27003 RIVER FERGUS @ COROFIN
Moments PWM L-Moments
Annual Maximum Floods 1957 to 2004.( no missing year )
27003 RIVER FERGUS @ COROFIN EV1
500100502510520
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 50020
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.8
1
1.2
1.4
1.6
1.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F F
loo
d)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=4, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 123.00 N= 32
Year AMF(m3/s)
1973 12.05 Mean 11.394 M100 11.394 L1 11.394 L-Cv 0.083
1974 11.55 Median 11.296 M110 6.172 L2 0.950 L-Skew 0.144
1975 9.63 Std.Dev. 1.670 M120 4.295 L3 0.136 L-Kur 0.085
1976 10.53 CV 0.147 M130 3.314 L4 0.080
1977 14.02 HazenS. 0.771
1978 9.32
1979 12.05
1980 11.55
1981 9.03
1982 11.87
1983 11.21
1984 11.05
1985 10.39
1986 10.39
1987 10.09
1988 9.63
1989 14.11
1990 11.38
1991 10.25
1992 11.88
1993 10.40
1994 14.77
1995 9.78
1996 10.56
1997 12.57
1998 12.82
1999 14.58
2000 12.05
2001 11.88
2002 9.63
2003 9.03
2004 14.58
LA
VA
LL
Y/C
LA
RIN
BR
IDG
E C
AT
CH
ME
NT
29004 RIVER CLARINBRIDGE @ CLARINBRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1973 to 2004.(no missing year )
29004 RIVER CLARINBRIDGE @ CLARINBRIDGEEV1
50010050251052
0
2
4
6
8
10
12
14
16
18
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
2
4
6
8
10
12
14
16
18
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.85
0.9
0.95
1
1.05
1.1
1.15
1.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=4, LO2=3, LN2=3
3.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 123.50 N= 25
Year AMF(m3/s)
1976 10.60 Mean 15.815 M100 15.815 L1 15.815 L-Cv 0.130
1977 15.10 Median 15.400 M110 8.936 L2 2.056 L-Skew 0.117
1979 14.40 Std.Dev. 3.685 M120 6.340 L3 0.240 L-Kur 0.210
1980 12.90 CV 0.233 M130 4.960 L4 0.431
1983 16.40 HazenS. 0.910
1984 16.90
1985 16.40
1986 13.60
1987 14.40
1988 9.98
1989 18.80
1990 17.10
1991 22.40
1992 11.70
1993 16.40
1994 24.30
1995 18.50
1996 15.40
1997 15.40
1998 14.70
1999 23.30
2000 10.60
2001 17.10
2002 13.00
2003 16.01
KIN
VA
RR
A C
AT
CH
ME
NT
29071 RIVER L.CUTRA @ CUTRA
Moments PWM L-Moments
AM Floods 1976 to 2003.(missing year '78,81,82 )
29071 RIVER L.CUTRA @ CUTRA
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=S1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 458.00 N= 31
Year AMF(m3/s)
1974 51.41 Mean 61.934 M100 61.934 L1 61.934 L-Cv 0.107
1975 57.63 Median 62.975 M110 34.292 L2 6.650 L-Skew 0.112
1976 41.97 Std.Dev. 12.300 M120 24.094 L3 0.747 L-Kur 0.203
1977 64.81 CV 0.199 M130 18.730 L4 1.348
1978 54.20 HazenS. 1.303
1979 68.54
1980 66.04
1981 51.97
1982 66.66
1983 62.98
1984 66.04
1985 71.09
1986 76.31
1987 64.81
1988 63.58
1989 95.98
1990 67.91
1991 69.81
1992 66.04
1993 50.86
1994 58.80
1995 65.42
1996 44.50
1997 48.16
1998 53.08
1999 94.50
2000 47.63
2001 61.17
2002 49.24
2003 57.05
2004 61.77CA
RA
CA
TC
HM
EN
T30007 RIVER CLARE @ BALLYGADDY
Moments PWM L-Moments
Annual Maximum Floods 1974 to 2004.(no missing years)
30007 RIVER CLARE @ BALLYGADDYEV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2X, LO2=L2X, LN2=L2X
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 3111.00 N= 33
Year AMF(m3/s)
1972 169.43 Mean 274.974 M100 274.974 L1 274.974 L-Cv 0.146
1973 214.64 Median 247.968 M110 157.623 L2 40.273 L-Skew 0.410
1974 230.98 Std.Dev. 87.229 M120 114.544 L3 16.496 L-Kur 0.379
1975 346.79 CV 0.317 M130 91.753 L4 15.247
1976 189.82 HazenS. 3.038
1977 227.66
1978 363.57
1979 241.10
1980 338.55
1981 247.97
1982 244.52
1983 269.21
1984 272.84
1985 241.10
1986 247.97
1987 254.94
1988 276.49
1989 214.64
1990 380.77
1991 223.18
1992 281.12
1993 270.56
1994 281.12
1995 206.89
1996 255.09
1997 245.04
1998 236.99
1999 262.83
2000 244.82
2001 258.78
2002 216.01
2003 517.16
2004 601.59
CO
RR
IB C
AT
CH
ME
NT
30061 RIVER CORRIB ESTUARY @ WOLFE TONE BRIDGE
Moments PWM L-Moments
AMF 1972 to 2004.(no missing year)
30061 RIVER CORRIB ESTUARY @ WOLFE TONE BRIDGE
50010050251052
0
100
200
300
400
500
600
700
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
100
200
300
400
500
600
700
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=1, LO2=1, LN2=2
2.Shape Codes (subjective) :EV1=U2, LO2=U2, LN2=U1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 138.30 24
Year AMF(m3/s)
1981 26.60 Mean 30.058 M100 30.058 L1 30.058 L-Cv 0.071
1982 29.70 Median 29.850 M110 16.095 L2 2.131 L-Skew 0.001
1983 31.90 Std.Dev. 3.745 M120 11.086 L3 0.003 L-Kur 0.181
1984 35.60 CV 0.125 M130 8.494 L4 0.386
1985 27.30 HazenS. -0.123
1986 36.60
1987 29.70
1988 26.20
1989 36.30
1990 32.80
1991 29.90
1992 27.20
1993 30.30
1994 29.80
1995 23.40
1996 27.40
1997 22.00
1998 29.80
1999 30.70
2000 30.30
2001 31.00
2002 33.30
2003 28.50
2004 35.10
NE
WP
OR
T C
AT
CH
ME
NT
32012 RIVER NEWPORT @ NEWPORT WEIR
Moments PWM L-Moments
Annual Maximum Floods 1981 to 2004.(no missing years)
32012 RIVER NEWPORT @ NEWPORT WEIR EV1
50010050251052
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521.2
1.25
1.3
1.35
1.4
1.45
1.5
1.55
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=5, LN2=3
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1911.00 N= 36
Year AMF(m3/s)
1968 119.31 Mean 174.763 M100 174.763 L1 174.763 L-Cv 0.104
1969 165.92 Median 174.611 M110 96.506 L2 18.248 L-Skew 0.080
1970 150.64 Std.Dev. 33.409 M120 67.621 L3 1.456 L-Kur 0.211
1971 143.24 CV 0.191 M130 52.459 L4 3.851
1972 130.33 HazenS. 1.076
1973 177.00
1974 163.77
1975 134.57
1976 116.62
1977 155.15
1978 170.63
1979 193.38
1980 208.66
1981 172.22
1982 181.85
1983 195.05
1984 170.63
1986 212.12
1987 178.61
1988 152.13
1989 286.56
1990 224.44
1991 177.00
1992 190.05
1993 178.61
1994 183.48
1995 144.70
1996 129.52
1997 213.86
1998 169.06
1999 219.12
2000 172.22
2001 198.41
2002 183.48
2003 152.13
2004 177.00
MO
Y C
AT
CH
ME
NT
34001 RIVER MOY @ RAHANS
Moments PWM L-Moments
Annual Maximum Floods 1968 to 2004.(missing years '85)
34001 RIVER MOY @ RAHANSEV1
50010050251052
0
50
100
150
200
250
300
350
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 50020
50
100
150
200
250
300
350
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
2 5 10 25 50 100 500
1.5
1.7
1.9
2.1
2.3
2.5
2.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2X, LO2=L2X, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1737.00 29
Year AMF(m3/s)
1976 113.00 Mean 180.415 M100 180.415 L1 180.415 L-Cv 0.093
1977 171.00 Median 178.000 M110 98.587 L2 16.759 L-Skew 0.114
1978 164.00 Std.Dev. 31.397 M120 68.838 L3 1.917 L-Kur 0.253
1979 196.00 CV 0.174 M130 53.336 L4 4.233
1980 201.00 HazenS. 1.265
1981 168.00
1982 187.00
1983 189.00
1984 154.00
1985 161.00
1986 209.00
1987 185.00
1988 144.00
1989 282.00
1990 217.00
1991 167.00
1992 190.00
1993 168.00
1994 193.00
1995 140.00
1996 156.00
1997 232.00
1998 178.00
1999 195.00
2000 170.00
2001 190.00
2002 161.00
2003 159.00
2004 192.04
MO
Y C
AT
CH
ME
NT
34003 RIVER MOY @ FOXFORD
Moments PWM L-Moments
Annual Maximum Floods 1976 to 2004.(no missing years)
34003 RIVER MOY @ FOXFORDEV1
50010050251052
0
50
100
150
200
250
300
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
50
100
150
200
250
300
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
1.9
2
2.1
2.2
2.3
2.4
2.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=3, LN2=3
2.Shape Codes (subjective) :EV1=S1, LO2=S1, LN2=S2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 113.00 N= 33
Year AMF(m3/s)
1972 23.36 Mean 28.366 M100 28.366 L1 28.366 L-Cv 0.097
1973 29.85 Median 27.480 M110 15.561 L2 2.755 L-Skew 0.081
1974 27.37 Std.Dev. 4.846 M120 10.870 L3 0.224 L-Kur 0.158
1975 26.16 CV 0.171 M130 8.409 L4 0.434
1976 21.49 HazenS. 0.432
1977 28.15
1978 30.19
1979 29.62
1980 34.66
1981 24.96
1982 26.82
1983 26.16
1984 34.18
1985 31.70
1986 31.82
1987 26.49
1988 26.60
1989 38.58
1990 25.72
1991 29.62
1992 27.59
1993 29.17
1994 27.48
1995 31.23
1996 26.49
1997 35.75
1998 34.90
1999 38.58
2000 19.18
2001 20.58
2002 22.94
2003 22.21
2003 26.49
MO
Y C
AT
CH
ME
NT
34009 RIVER OWENGARVE @ CURRAGHBONAUN
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2003.(no missing years)
34009 RIVER OWENGARVE @ CURRAGHBONAUN EV1
2 5 10 25 50 100 500
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=4, LO2=4, LN2=5
3.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 144.00 N= 30
Year AMF(m3/s)
1975 15.36 Mean 18.795 M100 18.795 L1 18.795 L-Cv 0.090
1976 13.57 Median 18.729 M110 10.244 L2 1.692 L-Skew 0.097
1977 17.54 Std.Dev. 3.054 M120 7.139 L3 0.165 L-Kur 0.229
1978 16.17 CV 0.163 M130 5.521 L4 0.387
1979 16.53 HazenS. 0.777
1980 21.74
1981 19.63
1982 16.00
1983 18.82
1984 19.13
1985 18.21
1986 21.48
1987 20.07
1988 19.82
1989 26.05
1990 19.44
1991 19.57
1992 17.48
1993 17.96
1994 17.36
1995 15.13
1996 13.13
1997 25.77
1998 20.96
1999 24.26
2000 19.07
2001 17.48
2002 17.84
2003 18.64
2004 19.63MO
Y C
AT
CH
ME
NT
34011 RIVER MANULLA @ GNEEVE BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing year )
34011 RIVER MANULLA @ GNEEVE BRIDGE
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.05
1.1
1.15
1.2
1.25
1.3
1.35
1.4
1.45
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=4, LN2=4
2.Shape Codes (subjective) :EV1=S1, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 128.00 N= 28
Year AMF(m3/s)
1977 20.20 Mean 20.700 M100 20.700 L1 20.700 L-Cv 0.066
1978 21.10 Median 20.800 M110 11.035 L2 1.370 L-Skew -0.051
1979 19.70 Std.Dev. 2.386 M120 7.574 L3 -0.069 L-Kur 0.140
1980 24.70 CV 0.115 M130 5.784 L4 0.191
1981 18.40 HazenS. -0.395
1982 19.40
1983 20.30
1984 21.40
1985 22.90
1986 23.50
1987 21.00
1988 21.20
1989 24.00
1990 20.50
1991 22.40
1992 16.10
1993 18.90
1994 18.20
1995 19.90
1996 17.60
1997 23.50
1998 22.60
1999 24.60
2000 15.30
2001 21.40
2002 18.70
2003 20.60
2004 21.50
MO
Y C
AT
CH
ME
NT
34024 RIVER POLLAGH @ KILTIMAGH
Moments PWM L-Moments
Annual Maximum Floods 1977 to 2004.( no missing year )
34024 RIVER POLLAGH @ KILTIMAGH
2 5 10 25 50 100 500
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=3, LO2=4, LN2=3
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 299.00 N= 29
Year AMF(m3/s)
1972 27.12 Mean 30.522 M100 30.522 L1 30.522 L-Cv 0.119
1973 33.02 Median 31.159 M110 17.078 L2 3.634 L-Skew -0.009
1974 33.49 Std.Dev. 6.425 M120 11.985 L3 -0.034 L-Kur 0.190
1975 25.39 CV 0.211 M130 9.292 L4 0.692
1976 23.29 HazenS. 0.097
1977 28.44
1978 30.70
1979 35.40
1980 35.40
1981 32.08
1982 31.16
1983 29.79
1984 38.34
1985 40.85
1986 31.62
1987 31.16
1988 22.47
1989 46.04
1990 30.24
1991 38.83
1992 29.34
1993 28.44
1994 33.96
1995 34.44
1996 31.62
1997 22.06
1998 20.46
1999 23.29
2000 16.66
GL
EN
CA
R L
OU
GH
CA
TC
HM
EN
T35001 RIVER OWENMORE @ BALLYNACARROW
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2000.(no missing year)
35001 RIVER OWENMORE @ BALLYNACARROWEV1
50010050251052
0
10
20
30
40
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
10
20
30
40
50
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=5, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 90.00 N= 34
Year AMF(m3/s)
1971 31.90 Mean 51.783 M100 51.783 L1 51.783 L-Cv 0.098
1972 47.86 Median 50.478 M110 28.417 L2 5.051 L-Skew 0.026
1973 55.26 Std.Dev. 8.781 M120 19.808 L3 0.129 L-Kur 0.081
1974 49.07 CV 0.170 M130 15.271 L4 0.410
1975 49.04 HazenS. 0.069
1976 46.28
1977 40.52
1978 59.15
1979 60.61
1980 48.45
1981 40.20
1982 53.64
1983 47.17
1984 56.36
1985 58.38
1986 58.01
1987 59.01
1988 61.36
1989 43.64
1990 69.37
1991 66.85
1992 44.38
1993 55.59
1994 39.48
1995 43.33
1996 49.63
1997 52.89
1998 45.94
1999 51.32
2000 67.47
2001 44.41
2002 45.09
2003 60.23
2004 58.75
OW
EN
MO
RE
CA
TC
HM
EN
T35002 RIVER OWENBEG @ BILLA BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1971 to 2004.(no missing years)
35002 RIVER OWENBEG @ BILLA BRIDGE
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
LO2
5 10 25 50 100 5002
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521.4
1.45
1.5
1.55
1.6
1.65
1.7
1.75
1.8
1.85
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.No summer peak is observed
2.Linear Score (subjective) :EV1=3, LO2=5, LN2=4
3.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 642.00 N= 55
Year AMF(m3/s)
1945 57.98 Mean 77.779 M100 77.779 L1 77.779 L-Cv 0.144
1946 66.43 Median 75.419 M110 44.477 L2 11.174 L-Skew 0.205
1947 69.90 Std.Dev. 20.245 M120 31.895 L3 2.287 L-Kur 0.143
1948 69.90 CV 0.260 M130 25.125 L4 1.595
1949 57.98 HazenS. 1.039
1950 56.41
1951 64.62
1952 54.87
1953 57.98
1954 111.03
1955 53.35
1956 75.42
1957 77.27
1958 57.98
1959 62.95
1960 48.83
1961 79.15
1963 59.68
1964 69.90
1965 73.59
1966 75.42
1967 111.49
1968 125.27
1969 77.87
1970 59.93
1971 75.77
1972 69.53
1973 77.87
1974 89.04
1975 58.73
1976 46.78
1977 64.25
1978 68.09
1979 117.72
1980 85.12
1981 72.20
1982 74.25
1983 76.32
1984 109.75
1985 68.09
1988 54.07
1989 132.71
1990 99.65
1991 97.21
1992 75.49
1993 67.44
1994 88.59
1995 84.08
1996 76.88
1997 101.291998 95.61
1999 101.29
2000 79.72
2001 78.29
2002 116.82
35005 RIVER BALLYSADARE @ BALLYSADARE
Moments PWM L-Moments
MO
Y C
AT
CH
ME
NT
Annual Maximum Floods '45 - '02.(missing year '62,86,87)
35005 RIVER BALLYSADARE @ BALLYSADAREEV1
50010050251052
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521.5
1.6
1.7
1.8
1.9
2
2.1
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=2, LN2=4
2.Shape Codes (subjective) :EV1=S1, LO2=S1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= N/A N= 30
Year AMF(m3/s)
1974 29.93 Mean 26.946 M100 26.946 L1 26.946 L-Cv 0.100
1975 18.70 Median 26.294 M110 14.824 L2 2.702 L-Skew 0.118
1976 19.03 Std.Dev. 4.815 M120 10.386 L3 0.318 L-Kur 0.197
1977 22.16 CV 0.179 M130 8.058 L4 0.531
1978 22.16 HazenS. 0.759
1979 29.93
1980 25.90
1982 28.69
1983 26.29
1984 26.29
1985 20.39
1986 28.29
1987 26.29
1988 24.37
1989 34.70
1990 28.29
1991 37.91
1992 24.75
1993 27.48
1994 27.08
1995 25.52
1996 23.62
1997 27.88
1998 37.44
1999 32.49
2000 25.52
2001 26.84
2002 23.03
2003 23.40
2004 33.98
35071 RIVER L.MELVIN @ LAREEN
Moments PWM L-Moments
L.M
EL
VIN
CA
TC
HM
EN
T
Annual Maximum Floods 1974 to 2004.(missing year '81)
35071 RIVER L.MELVIN @ LAREENEV1
50010050251052
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=4, LO2=3, LN2=4
2.Shape Codes (subjective) :EV1=L2, LO2=U1, LN2=L2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 384.00 N= 30
Year AMF(m3/s)
1975 44.00 Mean 54.807 M100 54.807 L1 54.807 L-Cv 0.124
1976 29.20 Median 54.050 M110 30.815 L2 6.823 L-Skew 0.085
1977 76.20 Std.Dev. 11.986 M120 21.777 L3 0.579 L-Kur 0.143
1978 40.40 CV 0.219 M130 16.966 L4 0.973
1979 63.90 HazenS. 0.345
1980 55.30
1981 48.40
1982 78.40
1983 55.50
1984 56.30
1985 55.80
1986 48.60
1987 53.40
1988 36.60
1989 73.90
1990 67.10
1991 75.60
1992 48.20
1993 50.80
1994 61.70
1995 62.40
1996 45.20
1997 57.50
1998 67.20
1999 48.40
2000 48.20
2001 43.60
2002 54.70
2003 45.30
2004 52.40
35073 RIVER L.GILL @ LOUGH GILL
Moments PWM L-Moments
GA
RV
OG
UE
CA
TC
HM
EN
T
Annual Maximum Floods 1975 to 2004.(no missing years)
35073 RIVER L.GILL @ LOUGH GILLEV1
50010050251052
0
10
20
30
40
50
60
70
80
90
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
10
20
30
40
50
60
70
80
90
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=4, LN2=4
2.Shape Codes (subjective) :EV1=D1, LO2=L2, LN2=D1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 1501.00 N= 47
Year AMF(m3/s)
1958 64.26 Mean 89.597 M100 89.597 L1 89.597 L-Cv 0.104
1959 92.99 Median 89.948 M110 49.462 L2 9.327 L-Skew -0.029
1960 83.07 Std.Dev. 16.119 M120 34.485 L3 -0.266 L-Kur 0.064
1961 87.95 CV 0.180 M130 26.559 L4 0.596
1962 71.99 HazenS. -0.160
1963 103.56
1964 119.43
1965 104.65
1966 100.32
1967 100.32
1968 90.96
1969 85.00
1970 67.63
1971 64.26
1972 52.47
1973 73.77
1974 98.19
1975 66.78
1976 88.95
1977 71.99
1978 77.41
1979 81.16
1980 81.16
1981 83.07
1982 80.21
1983 96.09
1984 75.58
1985 86.96
1986 99.25
1987 107.96
1988 65.93
1989 96.09
1990 104.65
1991 75.13
1992 87.95
1993 89.95
1994 98.19
1995 110.20
1996 95.05
1997 102.47
1998 91.97
1999 119.43
2000 106.85
2001 112.47
2002 110.20
2003 74.67
2004 112.47
36019 RIVER ERNE @ BELTURBET
Moments PWM L-Moments
ER
NE
CA
TC
HM
EN
T
Annual Maximum Floods 1958 to 2004.(no missing year)
36019 RIVER ERNE @ BELTURBETEV1
50010050251052
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521.5
1.6
1.7
1.8
1.9
2
2.1
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Convex upwards pattern leading to a flattening out at the upper end of the EV1 probability plot
2.Linear Score (subjective) :EV1=2, LO2=3, LN2=3
3.Shape Codes (subjective) :EV1=D1, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 23.00 N= 27
Year AMF(m3/s)
1978 21.73 Mean 24.958 M100 24.958 L1 24.958 L-Cv 0.119
1979 23.37 Median 23.367 M110 13.964 L2 2.970 L-Skew 0.201
1980 30.87 Std.Dev. 5.586 M120 9.904 L3 0.597 L-Kur 0.222
1981 18.90 CV 0.224 M130 7.758 L4 0.659
1982 25.21 HazenS. 1.848
1983 22.38
1984 25.90
1985 43.57
1986 27.46
1987 32.16
1988 19.36
1989 26.94
1990 23.37
1991 26.42
1992 20.61
1993 19.20
1994 21.89
1995 31.05
1996 23.20
1997 21.41
1998 31.79
1999 26.59
2000 15.49
2001 26.59
2002 21.57
2003 24.45
2004 22.38
36021 RIVER YELLOW @ KILTYBARDEN
Moments PWM L-Moments
ER
NE
CA
TC
HM
EN
T
Annual Maximum Floods 1978 to 2004.(no missing years)
36021 RIVER YELLOW @ KILTYBARDEN
EV1
50010050251052
0
5
10
15
20
25
30
35
40
45
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
35
40
45
50
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=L2, LO2=U2, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 52.00 N= 30
Year AMF(m3/s)
1975 5.89 Mean 6.851 M100 6.851 L1 6.851 L-Cv 0.098
1976 5.91 Median 6.449 M110 3.760 L2 0.669 L-Skew 0.365
1977 5.25 Std.Dev. 1.532 M120 2.659 L3 0.244 L-Kur 0.391
1978 6.47 CV 0.224 M130 2.088 L4 0.262
1979 6.50 HazenS. 4.186
1980 7.02
1981 6.32
1982 7.57
1983 6.33
1984 6.38
1985 7.28
1986 6.41
1987 13.70
1988 7.24
1989 6.39
1990 6.38
1991 6.69
1992 7.34
1993 5.80
1994 5.85
1995 7.00
1996 6.43
1997 5.06
1998 5.88
1999 7.59
2000 6.02
2001 6.96
2002 8.87
2003 6.67
2004 8.32
ER
NE
CA
TC
HM
EN
T36031 RIVER CAVAN @ LISDARN
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing year)
36031 RIVER CAVAN @ LISDARNEV1
50010050251052
0
2
4
6
8
10
12
14
16
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
16
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.6
0.7
0.8
0.9
1
1.1
1.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=2, LO2=1, LN2=1
2.Shape Codes (subjective) :EV1=S2, LO2=S2, LN2=S2
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 78.00 N= 33
Year AMF(m3/s)
1972 21.83 Mean 28.337 M100 28.337 L1 28.337 L-Cv 0.146
1973 24.50 Median 28.177 M110 16.233 L2 4.129 L-Skew 0.128
1974 20.74 Std.Dev. 7.234 M120 11.599 L3 0.530 L-Kur 0.105
1975 25.80 CV 0.255 M130 9.097 L4 0.435
1976 18.61 HazenS. 0.726
1977 32.82
1978 30.01
1979 30.31
1980 33.14
1981 30.93
1982 26.68
1983 24.93
1984 43.18
1985 21.01
1986 28.48
1987 39.39
1988 17.96
1989 35.07
1990 29.24
1991 43.88
1992 17.83
1993 41.79
1994 38.04
1995 23.36
1996 23.22
1997 28.78
1998 19.40
1999 27.88
2000 31.56
2001 30.93
2002 23.50
2003 22.10
2004 28.18
SW
ILL
Y C
AT
CH
ME
NT
39008 RIVER LEANNAN @ GARTAN BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.(no missing years)
39008 RIVER LEANNAN @ GARTAN BRIDGE
500100502510520
5
10
15
20
25
30
35
40
45
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
5
10
15
20
25
30
35
40
45
50
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=3, LO2=2, LN2=3
2.Shape Codes (subjective) :EV1=S1, LO2=S1, LN2=S1
*For Explanation of Scores and Codes see in Introductory Page
A2 A (km2)= 207.00 N= 33
Year AMF(m3/s)
1972 28.47 Mean 45.912 M100 45.912 L1 45.912 L-Cv 0.143
1973 37.09 Median 45.720 M110 26.239 L2 6.567 L-Skew 0.163
1974 39.99 Std.Dev. 11.754 M120 18.766 L3 1.073 L-Kur 0.154
1975 39.50 CV 0.256 M130 14.752 L4 1.011
1976 33.15 HazenS. 1.027
1977 46.70
1978 55.47
1979 50.73
1980 45.72
1981 63.87
1982 36.52
1983 47.19
1984 70.42
1985 36.09
1986 48.19
1987 62.71
1988 31.12
1989 52.81
1990 47.69
1991 76.67
1992 40.99
1993 51.24
1994 64.45
1995 44.27
1996 41.45
1997 35.45
1998 35.24
1999 48.19
2000 41.91
2001 47.69
2002 36.52
2003 28.40
2004 49.20
SW
ILL
Y C
AT
CH
ME
NT
39009 RIVER FERN O/L @ AGHAWONEY
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.(no missing years)
39009 RIVER FERN O/L @ AGHAWONEYEV1
50010050251052
0
10
20
30
40
50
60
70
80
90
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
2 5 10 25 50 100 500
0
10
20
30
40
50
60
70
80
90
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
COMMENTS
1.Linear Score (subjective) :EV1=5, LO2=3, LN2=5
2.Shape Codes (subjective) :EV1=L1, LO2=U1, LN2=L1
*For Explanation of Scores and Codes see in Introductory Page
Appendix 4B
B A (km2)= 45.30 N= 32
Year AMF(m3/s)
1973 44.01 Mean 85.078 M100 85.078 L1 85.078 L-Cv 0.165
1974 69.54 Median 82.613 M110 49.568 L2 14.058 L-Skew 0.018
1975 88.18 Std.Dev. 24.602 M120 35.431 L3 0.255 L-Kur 0.128
1976 34.00 CV 0.289 M130 27.749 L4 1.793
1977 49.39 HazenS. 0.221
1978 119.35
1979 96.02
1980 68.14
1981 84.61
1982 99.23
1983 78.64
1984 147.16
1985 113.61
1986 115.89
1987 103.02
1988 55.23
1989 105.77
1990 115.89
1991 85.63
1992 79.62
1993 75.23
1994 92.85
1995 105.22
1996 70.94
1997 64.02
1998 80.61
1999 100.31
2000 74.75
2001 79.13
2002 62.89
2003 62.22
2004 101.39
FO
YL
E C
AT
CH
ME
NT
1041 RIVER DEELE @ SANDY MILLS
Moments PWM L-Moments
Annual Maximum Floods 1973 to 2004.(no missing years)
1041 RIVER DEELE @ SANDY MILLS EV1
50010050251052
0
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 10.80 N= 9
Year AMF(m3/s)
1996 2.10 Mean 2.923 M100 2.923 L1 2.923 L-Cv 0.226
1997 2.55 Median 2.700 M110 1.792 L2 0.660 L-Skew 0.159
1998 3.40 Std.Dev. 1.109 M120 1.322 L3 0.105 L-Kur 0.019
1999 4.72 CV 0.379 M130 1.055 L4 0.012
2000 2.70 HazenS. 1.034
2001 3.12
2002 1.65
2003 1.65
2004 4.42
MO
UR
NE
CA
TC
HM
EN
T1055 RIVER MOURNE BEG @ MOURNE BEG WEIR
Moments PWM L-Moments
Annual Maximum Floods 1996 to 2004.(no missing years)
1055 RIVER MOURNE BEG @ MOURNE BEG WEIR
50010050251052
0.0
1.0
2.0
3.0
4.0
5.0
6.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
1.0
2.0
3.0
4.0
5.0
6.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 321.00 N= 50
Year AMF(m3/s)
1955 21.50 Mean 21.542 M100 21.542 L1 21.542 L-Cv 0.135
1956 27.20 Median 21.500 M110 12.225 L2 2.907 L-Skew 0.090
1957 21.50 Std.Dev. 5.078 M120 8.678 L3 0.261 L-Kur 0.093
1958 33.00 CV 0.236 M130 6.772 L4 0.270
1959 21.20 HazenS. 0.448
1960 28.70
1961 22.10
1962 18.10
1963 22.10
1964 26.70
1965 31.10
1966 25.70
1967 29.80
1968 30.10
1969 23.90
1970 17.70
1971 18.50
1972 13.00
1973 22.40
1974 19.80
1975 15.40
1976 19.70
1977 15.30
1978 30.20
1979 23.80
1980 23.70
1981 22.20
1982 14.70
1983 22.00
1984 22.50
1985 15.40
1986 18.90
1987 21.90
1988 17.80
1989 23.80
1990 24.80
1991 18.90
1992 18.20
1993 27.40
1994 23.60
1995 29.90
1996 15.20
1997 16.10
1998 16.90
1999 12.70
2000 20.10
2001 17.60
2002 20.60
2003 15.00
2004 18.70
Gly
de
CA
TC
HM
EN
T6021 RIVER Glyde @ Mansfieldstown
Moments PWM L-Moments
Annual Maximum Floods 1955 to 2004.(no missing years)
6021 RIVER Glyde @ MansfieldstownEV1
50010050251052
0
5
10
15
20
25
30
35
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
5
10
15
20
25
30
35
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 10.20 N= 30
Year AMF(m3/s)
1975 11.80 Mean 20.583 M100 20.583 L1 20.583 L-Cv 0.609
1976 116.00 Median 10.025 M110 16.555 L2 12.527 L-Skew 0.677
1977 11.20 Std.Dev. 33.115 M120 14.538 L3 8.478 L-Kur 0.481
1978 112.00 CV 1.609 M130 13.204 L4 6.022
1979 122.00 HazenS. 3.421
1980 23.00
1981 23.30
1982 10.70
1983 6.87
1984 10.60
1985 5.57
1986 4.62
1987 8.56
1988 4.55
1989 3.98
1990 7.29
1991 10.30
1992 6.67
1993 9.75
1994 12.50
1995 3.61
1996 6.84
1997 11.90
1998 5.51
1999 4.55
2000 3.66
2001 10.90
2002 14.20
2003 27.50
2004 7.55
PIE
DM
ON
T C
AT
CH
ME
NT
6030 RIVER BIG @ BALLYGOLY
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing years)
6030 RIVER BIG @ BALLYGOLY EV1
50010050251052
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520
0.5
1
1.5
2
2.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 57.40 N= 25
Year AMF(m3/s)
1978 9.26 Mean 27.881 M100 27.881 L1 27.881 L-Cv 0.410
1979 61.70 Median 18.600 M110 19.659 L2 11.438 L-Skew 0.462
1980 21.80 Std.Dev. 23.425 M120 15.892 L3 5.279 L-Kur 0.275
1981 21.50 CV 0.840 M130 13.594 L4 3.144
1982 16.40 HazenS. 2.493
1983 5.39
1984 13.50
1985 14.70
1986 12.75
1987 12.05
1988 10.60
1989 18.11
1990 20.58
1991 24.36
1992 15.82
1995 21.04
1996 17.70
1997 39.91
1998 48.13
1999 13.20
2000 92.30
2001 46.70
2002 91.00
2003 18.60
2004 29.90
DE
E C
AT
CH
ME
NT
6033 RIVER WHITE(DEE) @ CONEYBURROW BR.
Moments PWM L-Moments
AM Floods 1978 to 2004.( missing year: 93,94)
6033 RIVER WHITE(DEE) @ CONEYBURROW BR.
500100502510520
10
20
30
40
50
60
70
80
90
100
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
80
90
100
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 76.20 N= 18
Year AMF(m3/s)
1977 10.40 Mean 26.875 M100 26.875 L1 26.875 L-Cv 0.395
1978 35.60 Median 22.550 M110 18.741 L2 10.608 L-Skew 0.363
1981 17.40 Std.Dev. 23.284 M120 14.904 L3 3.850 L-Kur 0.345
1982 29.20 CV 0.866 M130 12.638 L4 3.655
1983 4.16 HazenS. 4.207
1984 37.50
1985 110.00
1986 30.60
1987 25.80
1988 7.29
1989 14.40
1990 19.90
1991 25.20
1992 35.20
1993 36.90
1995 18.10
1996 13.50
1997 12.60
Bro
ad
Me
ad
ow
Wa
ter
CA
TC
HM
EN
T8003 RIVER BROADMEADOW @ FIELDSTOWN
Moments PWM L-Moments
AMF 1977 to 1997.(missing years: '79,80,94)
8003 RIVER BROADMEADOW @ FIELDSTOWN
50010050251052
0.0
20.0
40.0
60.0
80.0
100.0
120.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
20.0
40.0
60.0
80.0
100.0
120.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.5
1
1.5
2
2.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 34.00 N= 15
Year AMF(m3/s)
1978 13.39 Mean 9.879 M100 9.879 L1 9.879 L-Cv 0.286
1979 17.43 Median 8.238 M110 6.355 L2 2.830 L-Skew 0.184
1980 7.39 Std.Dev. 4.864 M120 4.795 L3 0.521 L-Kur -0.009
1983 7.20 CV 0.492 M130 3.872 L4 -0.026
1984 10.31 HazenS. 0.894
1985 18.79
1986 5.92
1987 8.24
1988 5.34
1989 4.64
1990 12.35
1991 5.27
1992 11.90
1993 15.98
1994 4.06
Bro
ad
Me
ad
ow
Wa
ter
CA
TC
HM
EN
T8007 RIVER BROADMEADOW @ ASHBOURNE
Moments PWM L-Moments
AMF 1978 to 1994.(missing years: '81,82)
8007 RIVER BROADMEADOW @ ASHBOURNE
50010050251052
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 181.00 N= 23
Year AMF(m3/s)
1979 38.42 Mean 31.001 M100 31.001 L1 31.001 L-Cv 0.139
1980 33.39 Median 32.219 M110 17.650 L2 4.298 L-Skew -0.148
1981 20.13 Std.Dev. 7.669 M120 12.377 L3 -0.637 L-Kur 0.201
1982 33.59 CV 0.247 M130 9.568 L4 0.864
1983 35.17 HazenS. -0.925
1984 30.49
1985 45.41
1986 28.60
1987 27.86
1988 13.88
1989 32.22
1990 25.85
1991 37.60
1992 38.42
1993 39.87
1994 33.98
1995 30.30
1996 23.89
1998 31.70
1999 14.73
2000 36.07
2001 27.75
2002 33.71
NA
NN
Y C
AT
CH
ME
NT
8011 RIVER NANNY @ DULEEK ROAD BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1979 to 2002.( missing year: 97)
8011 RIVER NANNY @ DULEEK ROAD BRIDGE
EV1
50010050251052
0
5
10
15
20
25
30
35
40
45
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
50
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 22.10 N= 19
Year AMF(m3/s)
1980 0.20 Mean 4.215 M100 4.215 L1 4.215 L-Cv 0.333
1981 6.22 Median 4.350 M110 2.808 L2 1.402 L-Skew -0.087
1982 7.51 Std.Dev. 2.424 M120 2.085 L3 -0.122 L-Kur 0.105
1983 4.16 CV 0.575 M130 1.661 L4 0.147
1984 4.35 HazenS. -0.539
1985 8.15
1986 3.98
1987 5.00
1988 2.90
1989 5.04
1990 6.77
1991 6.52
1992 0.26
1993 5.68
1994 0.09
1995 4.56
1996 1.38
1997 3.05
1998 4.26
CO
AS
TA
L C
AT
CH
ME
NT
8012 RIVER BALLYBOGHIL STREAM @ BALLYBOGHIL
Moments PWM L-Moments
AMF 1980 to 1998.(no missing years)
8012 RIVER BALLYBOGHIL STREAM @ BALLYBOGHIL
50010050251052
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 54.70 N= 9
Year AMF(m3/s)
1996 11.90 Mean 12.039 M100 12.039 L1 12.039 L-Cv 0.332
1997 7.98 Median 11.700 M110 8.019 L2 4.000 L-Skew 0.335
1998 17.30 Std.Dev. 7.179 M120 6.236 L3 1.339 L-Kur 0.231
1999 6.34 CV 0.596 M130 5.191 L4 0.924
2000 11.70 HazenS. 2.754
2001 6.66
2002 27.80
2003 4.67
2004 14.00
LIF
FE
Y C
AT
CH
ME
NT
9035 RIVER CAMMOCK @ KILLEEN ROAD
Moments PWM L-Moments
AMF 1996 to 2004.(no missing years)
9035 RIVER CAMMOCK @ KILLEEN ROAD
50010050251052
0.0
5.0
10.0
15.0
20.0
25.0
30.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
5.0
10.0
15.0
20.0
25.0
30.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 233.00 N= 47
Year AMF(m3/s)
1952 55.29 Mean 88.192 M100 88.192 L1 88.192 L-Cv 0.209
1953 66.08 Median 83.491 M110 53.321 L2 18.450 L-Skew 0.267
1954 90.57 Std.Dev. 38.349 M120 39.444 L3 4.930 L-Kur 0.313
1955 96.92 CV 0.435 M130 31.872 L4 5.771
1956 140.82 HazenS. 2.854
1957 89.49
1958 78.80
1959 84.55
1960 162.10
1961 80.18
1962 88.41
1963 90.95
1964 77.93
1965 266.64
1966 94.40
1967 69.22
1968 99.43
1969 75.24
1970 74.46
1971 88.48
1972 66.49
1973 74.03
1974 65.35
1975 37.95
1976 93.14
1977 116.59
1978 112.64
1982 51.13
1983 51.91
1984 75.74
1985 155.32
1986 23.16
1987 62.57
1989 68.11
1990 86.97
1991 115.40
1992 97.54
1993 56.67
1994 87.93
1995 72.65
1996 57.26
1997 133.74
1998 69.88
1999 60.35
2003 83.49
2004 115.11
2005 83.94
AV
OC
A C
AT
CH
ME
NT
10002 RIVER AVONMORE @ RATHDRUM
Moments PWM L-Moments
AM Floods 1952 to 2005.( missing year: 79-81,88,00-02)
10002 RIVER AVONMORE @ RATHDRUM EV1
500100502510520
50
100
150
200
250
300
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
50
100
150
200
250
300
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
B A (km2)= 204.10 N= 16
Year AMF(m3/s)
1989 43.90 Mean 56.686 M100 56.686 L1 56.686 L-Cv 0.212
1990 43.60 Median 46.950 M110 34.342 L2 11.997 L-Skew 0.304
1991 35.80 Std.Dev. 21.633 M120 25.502 L3 3.646 L-Kur 0.084
1992 36.60 CV 0.382 M130 20.532 L4 1.013
1993 44.20 HazenS. 1.566
1994 34.10
1995 42.90
1996 49.70
1997 69.40
1998 88.90
1999 60.20
2000 61.30
2001 61.00
2002 39.90
2003 93.48
2004 102.00
AV
OC
A C
AT
CH
ME
NT
10028 RIVER AUGHRIM @ KNOCKNAMOHILL
Moments PWM L-Moments
Annual Maximum Floods 1989 to 2004.(no missing years)
10028 RIVER AUGHRIM @ KNOCKNAMOHILLEV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
A2 A (km2)= 148.00 N= 33
Year AMF(m3/s)
1972 39.66 Mean 49.845 M100 49.845 L1 49.845 L-Cv 0.162
1973 59.23 Median 47.165 M110 28.962 L2 8.079 L-Skew 0.237
1974 44.51 Std.Dev. 16.660 M120 20.974 L3 1.916 L-Kur 0.298
1975 31.95 CV 0.334 M130 16.696 L4 2.409
1976 47.69 HazenS. 3.033
1977 62.17
1978 38.27
1979 54.12
1980 51.74
1981 58.40
1982 59.23
1983 37.92
1984 51.74
1985 120.70
1986 45.44
1987 67.36
1988 40.01
1989 49.60
1990 37.58
1991 45.32
1992 38.63
1993 43.78
1994 46.17
1995 48.03
1996 50.79
1997 47.17
1998 30.05
1999 23.19
2000 70.76
2001 54.82
2002 64.84
2003 39.96
2004 44.06
OW
EN
AV
OR
RA
GH
CA
TC
HM
EN
T11001 RIVER OWENAVORRAGH @ BOLEANY
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.( no missing year )
11001 RIVER OWENAVORRAGH @ BOLEANYEV1
50010050251052
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510521
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
B A (km2)= 185.00 N= 30
Year AMF(m3/s)
1975 24.80 Mean 45.163 M100 45.163 L1 45.163 L-Cv 0.151
1976 42.40 Median 43.550 M110 25.990 L2 6.816 L-Skew 0.029
1977 54.80 Std.Dev. 12.001 M120 18.496 L3 0.199 L-Kur 0.120
1978 38.20 CV 0.266 M130 14.449 L4 0.816
1979 50.20 HazenS. -0.008
1980 37.80
1981 36.20
1982 32.80
1983 44.20
1984 46.50
1985 52.30
1986 46.60
1987 40.20
1988 45.20
1989 34.60
1990 38.80
1991 36.00
1992 58.90
1993 56.20
1994 55.70
1995 41.20
1996 42.90
1997 61.60
1998 60.80
1999 34.90
2000 72.30
2001 16.60
2002 55.20
2003 37.40
2004 59.60
SL
AN
EY
CA
TC
HM
EN
T12013 RIVER SLANEY @ RATHVILLY
Moments PWM L-Moments
Annual Maximum Floods 1975 to 2004.(no missing years)
12013 RIVER SLANEY @ RATHVILLYEV1
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 185.00 N= 22
Year AMF(m3/s)
1977 18.70 Mean 22.586 M100 22.586 L1 22.586 L-Cv 0.157
1978 17.20 Median 19.500 M110 13.071 L2 3.555 L-Skew 0.142
1979 16.60 Std.Dev. 6.236 M120 9.391 L3 0.506 L-Kur -0.074
1980 20.30 CV 0.276 M130 7.360 L4 -0.264
1981 14.40 HazenS. 0.528
1982 18.20
1983 18.70
1984 15.30
1985 17.70
1986 17.20
1987 18.50
1988 16.70
1989 26.90
1990 21.70
1991 29.70
1992 30.50
1993 31.80
2000 27.70
2001 28.10
2002 31.00
2003 27.00
2004 33.00
BA
RR
OW
CA
TC
HM
EN
T
14033 RIVER OWENASS @ MOUNTMELLICK
Moments PWM L-Moments
AM Floods 1977 to 2004.( missing year: 94-99)
14033 RIVER OWENASS @ MOUNTMELLICK EV1
500100502510520
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 387.00 N= 50
Year AMF(m3/s)
1954 34.67 Mean 28.472 M100 28.472 L1 28.472 L-Cv 0.179
1955 18.37 Median 27.435 M110 16.781 L2 5.090 L-Skew 0.189
1956 26.51 Std.Dev. 9.718 M120 12.196 L3 0.961 L-Kur 0.213
1957 29.32 CV 0.341 M130 9.703 L4 1.086
1958 20.84 HazenS. 1.777
1959 27.19
1960 39.66
1961 17.50
1962 23.88
1963 23.63
1964 42.35
1965 35.46
1966 34.67
1967 26.11
1968 61.85
1969 23.88
1970 19.13
1971 26.33
1972 20.39
1973 28.61
1975 14.58
1976 23.34
1977 23.34
1978 36.97
1979 28.15
1980 20.57
1981 28.61
1982 26.33
1983 41.82
1984 15.04
1985 34.04
1986 23.76
1987 33.01
1988 19.09
1989 61.25
1990 29.08
1991 14.89
1992 18.37
1993 28.38
1994 34.30
1995 36.97
1996 28.15
1997 25.89
1998 31.00
1999 34.04
2000 32.50
2001 25.03
2002 27.69
2003 18.02
2004 29.08
NO
RE
CA
TC
HM
EN
T15005 RIVER ERKINA @ DURROW FOOT BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2004.(missing years:'74)
15005 RIVER ERKINA @ DURROW FOOT BRIDGE
EV1
50010050251052
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 945.00 N= 16
Year AMF(m3/s)
1989 53.90 Mean 77.161 M100 77.161 L1 77.161 L-Cv 0.173
1990 133.00 Median 77.108 M110 45.245 L2 13.329 L-Skew 0.082
1991 88.60 Std.Dev. 23.386 M120 32.567 L3 1.096 L-Kur 0.214
1992 58.20 CV 0.303 M130 25.705 L4 2.858
1993 67.20 HazenS. 0.899
1994 78.40
1995 104.00
1996 81.50
1997 67.20
1998 71.41
1999 94.31
2000 95.94
2001 79.82
2002 47.20
2003 38.07
2004 75.82
NO
RE
CA
TC
HM
EN
T
15012 RIVER NORE @ BALLYRAGGET
Moments PWM L-Moments
AM Floods 1977 to 2004.( missing year: 94-99)
15012 RIVER NORE @ BALLYRAGGET
50010050251052
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 75.00 N= 33
Year AMF(m3/s)
1972 22.45 Mean 30.368 M100 30.368 L1 30.368 L-Cv 0.225
1973 27.65 Median 27.872 M110 18.603 L2 6.838 L-Skew 0.061
1974 34.60 Std.Dev. 11.848 M120 13.611 L3 0.417 L-Kur 0.034
1975 19.20 CV 0.390 M130 10.785 L4 0.231
1976 8.84 HazenS. 0.339
1977 19.70
1978 27.87
1979 24.10
1980 30.75
1981 22.05
1982 45.93
1983 39.69
1984 14.01
1985 42.90
1986 13.36
1987 23.69
1988 35.59
1989 38.13
1990 20.47
1991 20.47
1992 16.74
1993 35.59
1994 46.21
1995 19.31
1996 58.07
1997 46.21
1998 43.99
1999 25.81
2000 38.65
2001 41.28
2002 23.69
2003 31.70
2004 43.44
SU
IR C
AT
CH
ME
NT
16006 RIVER MULTEEN @ BALLINCLOGH BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.(no missing years)
16006 RIVER MULTEEN @ BALLINCLOGH BRIDGE
EV1
50010050251052
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 273.00 N= 51
Year AMF(m3/s)
1954 101.61 Mean 79.182 M100 79.182 L1 79.182 L-Cv 0.184
1955 57.78 Median 75.842 M110 46.887 L2 14.593 L-Skew 0.086
1956 138.03 Std.Dev. 25.403 M120 33.900 L3 1.255 L-Kur 0.059
1957 99.80 CV 0.321 M130 26.719 L4 0.862
1958 64.79 HazenS. 0.460
1959 65.81
1960 88.09
1961 63.77
1962 72.62
1963 95.06
1964 76.93
1965 109.55
1966 63.26
1967 46.46
1968 136.01
1969 41.58
1970 49.67
1971 91.55
1972 51.07
1973 86.38
1974 44.89
1975 91.55
1976 38.58
1977 68.92
1978 93.88
1979 83.00
1980 61.75
1981 78.02
1982 75.84
1983 60.00
1984 45.56
1985 93.30
1986 52.95
1987 72.35
1988 103.42
1989 127.40
1990 41.58
1991 90.39
1992 52.24
1993 68.40
1994 107.08
1995 84.69
1996 103.42
1997 113.29
1998 108.93
1999 56.80
2000 113.29
2001 63.77
2002 72.092003 65.302004 105.80
SU
IR C
AT
CH
ME
NT
16007 RIVER AHERLOW @ KILLARDRY
Moments PWM L-Moments
Annual Maximum Floods 1954 to 2004.(no missing years)
16007 RIVER AHERLOW @ KILLARDRY EV1
50010050251052
0
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 228.00 N= 36
Year AMF(m3/s)
1964 36.67 Mean 55.204 M100 55.204 L1 55.204 L-Cv 0.160
1965 49.44 Median 54.569 M110 32.005 L2 8.806 L-Skew 0.060
1966 32.49 Std.Dev. 15.285 M120 22.893 L3 0.530 L-Kur 0.084
1967 29.38 CV 0.277 M130 17.933 L4 0.739
1968 47.64 HazenS. 0.392
1969 34.40
1970 34.72
1971 44.47
1977 66.77
1978 66.20
1979 41.18
1980 47.47
1981 56.89
1982 53.30
1983 47.01
1984 38.64
1985 63.93
1986 43.37
1987 54.82
1988 75.11
1989 52.30
1990 35.80
1991 59.01
1992 51.32
1993 57.42
1994 74.50
1995 68.51
1996 73.28
1997 80.79
1998 74.50
1999 56.37
2000 92.20
2001 54.31
2002 60.08
2003 57.94
2004 75.11
SU
IR C
AT
CH
ME
NT
16012 RIVER TAR @ TAR BRIDGE
Moments PWM L-Moments
AM Floods 1964 to 2004.( missing years: 72-76)
16012 RIVER TAR @ TAR BRIDGE
EV1
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 91.00 N= 33
Year AMF(m3/s)
1972 113.75 Mean 101.688 M100 101.688 L1 101.688 L-Cv 0.239
1973 112.70 Median 93.214 M110 62.975 L2 24.261 L-Skew 0.165
1974 47.70 Std.Dev. 42.657 M120 46.693 L3 3.999 L-Kur 0.085
1975 91.80 CV 0.419 M130 37.442 L4 2.053
1976 70.68 HazenS. 0.855
1977 75.68
1978 142.36
1979 69.86
1980 67.44
1981 101.47
1982 99.00
1983 78.25
1984 63.12
1985 113.75
1986 59.70
1987 80.43
1988 128.47
1989 50.05
1990 35.67
1991 121.81
1992 73.57
1993 93.21
1994 81.31
1995 182.45
1996 157.01
1997 138.23
1998 155.76
1999 57.11
2000 207.02
2001 112.18
2002 137.65
2003 60.08
2004 176.40
SU
IR C
AT
CH
ME
NT
16013 RIVER NIRE @ FOURMILEWATER
Moments PWM L-Moments
AMF 1972 to 2004.(no missing years)
16013 RIVER NIRE @ FOURMILEWATER
EV1
50010050251052
0.0
50.0
100.0
150.0
200.0
250.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
50.0
100.0
150.0
200.0
250.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= N/A N= 13
Year AMF(m3/s)
1991 1.72 Mean 2.953 M100 2.953 L1 2.953 L-Cv 0.195
1992 2.05 Median 2.848 M110 1.764 L2 0.575 L-Skew 0.332
1993 3.45 Std.Dev. 1.069 M120 1.304 L3 0.191 L-Kur 0.257
1994 5.67 CV 0.362 M130 1.052 L4 0.148
1995 4.32 HazenS. 2.527
1996 2.85
1997 3.20
1998 2.35
1999 2.30
2000 2.25
2001 2.25
2002 3.02
2004 2.96
SU
IR C
AT
CH
ME
NT
16051 RIVER ROSSESTOWN @ CLOBANNA
Moments PWM L-Moments
AMF 1991 to 2004.(missing years:'03)
16051 RIVER ROSSESTOWN @ CLOBANNA
50010050251052
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 335.00 N= 48
Year AMF(m3/s)
1956 77.52 Mean 71.069 M100 71.069 L1 71.069 L-Cv 0.109
1957 68.90 Median 71.494 M110 39.407 L2 7.745 L-Skew -0.028
1958 57.14 Std.Dev. 13.447 M120 27.526 L3 -0.215 L-Kur 0.100
1959 58.45 CV 0.189 M130 21.238 L4 0.776
1960 69.37 HazenS. -0.157
1961 58.89
1962 60.67
1963 67.04
1964 53.69
1965 79.48
1966 51.99
1967 42.65
1968 90.63
1970 53.26
1971 54.97
1972 67.97
1973 78.50
1974 58.45
1975 76.06
1976 62.46
1977 78.99
1978 76.54
1979 72.68
1980 66.11
1981 76.54
1982 68.43
1983 68.43
1984 75.09
1985 87.53
1986 80.47
1987 75.09
1988 96.93
1989 69.13
1990 42.84
1991 71.02
1992 64.51
1993 80.72
1994 95.60
1995 82.72
1996 48.87
1997 85.24
1998 87.79
1999 71.97
2000 92.45
2001 72.44
2002 88.30
2003 60.00
2004 86.77
MU
NS
TE
R B
LA
CK
WA
TE
R C
AT
CH
ME
NT
18001 RIVER BRIDE @ MOGEELY BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1956 to 2004.(missing year:'69)
18001 RIVER BRIDE @ MOGEELY BRIDGE
EV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 2338.00 N= 49
Year AMF(m3/s)
1955 289.00 Mean 353.653 M100 353.653 L1 353.653 L-Cv 0.093
1956 433.00 Median 344.000 M110 193.309 L2 32.964 L-Skew 0.060
1957 324.00 Std.Dev. 57.558 M120 134.694 L3 1.962 L-Kur 0.103
1958 308.00 CV 0.163 M130 103.907 L4 3.387
1959 319.00 HazenS. 0.237
1960 376.00
1961 328.00
1962 280.00
1963 336.00
1964 296.00
1965 388.00
1966 341.00
1967 235.00
1968 437.00
1969 251.00
1970 258.00
1971 365.00
1972 315.00
1973 390.00
1974 308.00
1975 336.00
1976 285.00
1977 343.00
1978 451.00
1979 343.00
1980 448.00
1981 357.00
1982 333.00
1983 359.00
1984 313.00
1985 396.00
1986 327.00
1987 385.00
1988 479.00
1989 419.00
1990 316.00
1991 350.00
1992 280.00
1993 358.00
1994 434.00
1995 364.00
1996 312.00
1997 415.00
1998 446.00
1999 344.00
2000 428.00
2001 366.00
2002 344.00
2004 421.00
MU
NS
TE
R B
AL
CK
WA
TE
R C
AT
CH
ME
NT
18002 RIVER BALLYDUFF @ BALCKWATER(MUNSTER)
Moments PWM L-Moments
Annual Maximum Floods 1955 to 2004.(no missing years)
18002 RIVER BALLYDUFF @ BALCKWATER(MUNSTER)
EV1
50010050251052
0
100
200
300
400
500
600
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
100
200
300
400
500
600
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 1258.00 N= 49
Year AMF(m3/s)
1955 210.51 Mean 282.759 M100 282.759 L1 282.759 L-Cv 0.128
1956 329.45 Median 266.149 M110 159.461 L2 36.163 L-Skew 0.159
1957 246.57 Std.Dev. 65.166 M120 113.293 L3 5.750 L-Kur 0.104
1958 217.57 CV 0.230 M130 88.590 L4 3.778
1959 256.51 HazenS. 1.097
1960 307.29
1961 266.15
1962 195.96
1963 270.57
1964 256.29
1965 332.66
1966 303.37
1967 193.98
1968 376.46
1969 220.24
1970 195.96
1971 210.21
1972 212.04
1973 343.43
1974 236.97
1975 262.85
1976 202.94
1977 252.50
1978 335.05
1979 251.96
1980 502.74
1981 310.31
1982 256.29
1983 296.47
1984 207.98
1985 364.47
1986 253.47
1987 327.44
1988 404.64
1989 336.24
1990 256.29
1991 251.96
1992 214.08
1993 285.11
1994 392.73
1995 291.91
1996 224.39
1997 333.85
1998 378.95
1999 293.05
2000 348.26
2001 307.99
2002 257.38
2003 271.68
MU
NS
TE
R B
LA
CK
WA
TE
R C
AT
CH
ME
NT
18003 RIVER BLACKWATER @ KILLAVULLEN
Moments PWM L-Moments
AMF 1955 to 2003.(no missing years)
18003 RIVER BLACKWATER @ KILLAVULLEN EV1
50010050251052
0.0
100.0
200.0
300.0
400.0
500.0
600.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
100.0
200.0
300.0
400.0
500.0
600.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 1058.00 N= 27
Year AMF(m3/s)
1977 263.00 Mean 291.296 M100 291.296 L1 291.296 L-Cv 0.079
1978 326.00 Median 286.000 M110 157.087 L2 22.877 L-Skew 0.194
1979 272.00 Std.Dev. 40.619 M120 109.278 L3 4.444 L-Kur 0.118
1980 397.00 CV 0.139 M130 84.365 L4 2.696
1981 294.00 HazenS. 1.098
1982 266.00
1983 286.00
1984 231.00
1985 355.00
1986 260.00
1987 292.00
1988 358.00
1989 297.00
1990 259.00
1991 252.00
1992 239.00
1993 278.00
1994 324.00
1995 286.00
1996 259.00
1997 314.00
1998 342.00
1999 267.00
2000 333.00
2001 298.00
2002 247.00
2003 270.00
MU
NS
TE
R B
AL
CK
WA
TE
R C
AT
CH
ME
NT
18006 RIVER BLACKWATER @ CSET MALLOW
Moments PWM L-Moments
Annual Maximum Floods 1977 to 2003.(no missing years)
18006 RIVER BLACKWATER @ CSET MALLOWEV1
50010050251052
0
50
100
150
200
250
300
350
400
450
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
300
350
400
450
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 113.00 N= 24
Year AMF(m3/s)
1981 58.30 Mean 80.987 M100 80.987 L1 80.987 L-Cv 0.136
1982 61.80 Median 79.650 M110 46.009 L2 11.030 L-Skew 0.118
1983 63.00 Std.Dev. 19.030 M120 32.727 L3 1.299 L-Kur -0.003
1984 50.80 CV 0.235 M130 25.533 L4 -0.034
1985 97.60 HazenS. 0.488
1986 66.50
1987 66.50
1988 80.70
1989 78.60
1990 68.10
1991 62.20
1992 69.30
1993 70.70
1994 105.00
1995 84.90
1996 99.70
1997 82.80
1998 107.00
1999 102.31
2000 93.30
2001 82.85
2002 63.35
2003 113.57
2004 114.82
MU
NS
TE
R B
AL
CK
WA
TE
R C
AT
CH
ME
NT
18016 RIVER BLACKWATER @ DUNCANNON
Moments PWM L-Moments
Annual Maximum Floods 1981 to 2004.(no missing years)
18016 RIVER BLACKWATER @ DUNCANNON EV1
50010050251052
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 881.00 N= 23
Year AMF(m3/s)
1981 231.00 Mean 222.769 M100 222.769 L1 222.769 L-Cv 0.045
1982 210.00 Median 220.000 M110 116.430 L2 10.092 L-Skew 0.153
1983 212.00 Std.Dev. 18.213 M120 79.559 L3 1.540 L-Kur 0.222
1984 191.00 CV 0.082 M130 60.730 L4 2.237
1985 269.00 HazenS. 1.113
1986 211.00
1987 225.00
1988 260.00
1989 220.00
1990 217.00
1991 214.00
1992 205.00
1993 211.00
1994 238.00
1995 218.00
1996 223.00
1997 236.00
1998 242.00
1999 227.32
2000 196.00
2001 227.00
2002 212.00
2004 228.37
MU
NS
TE
R B
AL
CK
WA
TE
R C
AT
CH
ME
NT
18048 RIVER BLACKWATER @ DROMCUMMER
Moments PWM L-Moments
Annual Maximum Floods 1981 to 2004.( missing year '03)
18048 RIVER BLACKWATER @ DROMCUMMER EV1
50010050251052
0
50
100
150
200
250
300
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
300
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
2
2.05
2.1
2.15
2.2
2.25
2.3
2.35
2.4
2.45
2.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 244.60 N= 24
Year AMF(m3/s)
1981 148.00 Mean 121.958 M100 121.958 L1 121.958 L-Cv 0.114
1982 124.00 Median 124.500 M110 67.933 L2 13.907 L-Skew -0.010
1983 135.00 Std.Dev. 24.016 M120 47.583 L3 -0.141 L-Kur 0.088
1984 86.50 CV 0.197 M130 36.774 L4 1.225
1985 134.00 HazenS. 0.124
1986 89.60
1987 133.00
1988 175.00
1989 108.00
1990 94.80
1991 103.00
1992 79.70
1993 113.00
1994 137.00
1995 99.40
1996 121.00
1997 118.00
1998 157.00
1999 125.00
2000 142.00
2001 126.00
2002 95.30
2003 141.97
2004 140.74
MU
NS
TE
R B
AL
CK
WA
TE
R C
AT
CH
ME
NT
18050 RIVER BLACKWATER @ DURRIGLE
Moments PWM L-Moments
Annual Maximum Floods 1981 to 2004.(no missing years)
18050 RIVER BLACKWATER @ DURRIGLEEV1
50010050251052
0
20
40
60
80
100
120
140
160
180
200
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
180
200
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 60.40 N= 9
Year AMF(m3/s)
1992 23.37 Mean 31.095 M100 31.095 L1 31.095 L-Cv 0.156
1993 27.95 Median 29.946 M110 17.971 L2 4.848 L-Skew -0.040
1994 41.95 Std.Dev. 8.045 M120 12.757 L3 -0.193 L-Kur 0.057
1995 29.95 CV 0.259 M130 9.921 L4 0.277
1996 17.72 HazenS. -0.340
1997 27.17
1998 37.07
1999 34.07
2000 40.60
LE
E C
AT
CH
ME
NT
19046 RIVER MARTIN @ STATION ROAD
Moments PWM L-Moments
AMF 1992 to 2000.(no missing years)
19046 RIVER MARTIN @ STATION ROAD
50010050251052
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 431.00 N= 31
Year AMF(m3/s)
1974 108.07 Mean 140.605 M100 140.605 L1 140.605 L-Cv 0.186
1975 287.11 Median 126.282 M110 83.372 L2 26.139 L-Skew 0.369
1976 106.81 Std.Dev. 51.902 M120 61.544 L3 9.635 L-Kur 0.277
1977 139.94 CV 0.369 M130 49.685 L4 7.242
1978 204.53 HazenS. 2.129
1979 117.04
1980 122.95
1981 215.09
1982 96.94
1983 96.33
1984 89.77
1985 231.71
1986 129.65
1987 141.34
1988 281.64
1989 128.97
1990 145.55
1991 103.06
1992 74.98
1993 126.28
1994 118.34
1995 130.32
1996 117.04
1997 122.29
1998 134.41
1999 110.60
2000 135.79
2001 114.45
2002 103.06
2003 149.82
2004 174.85
BA
ND
ON
CA
TC
HM
EN
T20002 RIVER BANDON @ CURRANURE
Moments PWM L-Moments
Annual Maximum Floods 1974 to 2004.(no missing years)
20002 RIVER BANDON @ CURRANUREEV1
50010050251052
0
50
100
150
200
250
300
350
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
50
100
150
200
250
300
350
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 79.30 N= 25
Year AMF(m3/s)
1977 23.00 Mean 30.252 M100 30.252 L1 30.252 L-Cv 0.161
1978 21.60 Median 27.700 M110 17.558 L2 4.864 L-Skew 0.275
1979 27.70 Std.Dev. 9.013 M120 12.739 L3 1.336 L-Kur 0.178
1980 25.30 CV 0.298 M130 10.129 L4 0.864
1981 34.00 HazenS. 1.666
1982 31.20
1983 25.00
1984 29.70
1985 55.60
1986 34.60
1987 43.80
1988 44.70
1989 26.20
1990 30.90
1991 21.90
1992 17.10
1993 28.10
1994 45.30
1995 24.20
1996 23.70
1997 23.10
2001 34.20
2002 33.90
2003 27.10
2004 24.40
AR
GID
EE
N C
AT
CH
ME
NT
20006 RIVER ARGIDEEN @ CLONAKILTY W.W.
Moments PWM L-Moments
Annual Maximum Floods 1977 to 2004.( no missing year )
20006 RIVER ARGIDEEN @ CLONAKILTY W.W. EV1
50010050251052
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 325.00 N= 51
Year AMF(m3/s)
1947 174.90 Mean 165.890 M100 165.890 L1 165.890 L-Cv 0.143
1948 212.73 Median 169.086 M110 94.801 L2 23.712 L-Skew 0.072
1949 195.27 Std.Dev. 42.152 M120 67.437 L3 1.707 L-Kur 0.117
1950 165.64 CV 0.254 M130 52.708 L4 2.766
1951 129.63 HazenS. 0.656
1952 178.43
1953 144.47
1954 166.78
1955 125.52
1956 147.73
1957 194.05
1958 110.57
1960 212.73
1964 207.68
1965 132.76
1966 171.40
1967 114.48
1968 154.35
1969 108.64
1970 212.73
1973 232.11
1974 93.67
1975 179.61
1977 194.05
1978 282.83
1979 123.48
1980 277.15
1981 166.78
1982 114.48
1983 138.03
1984 103.86
1985 224.27
1986 124.50
1987 177.25
1988 210.20
1989 169.09
1990 157.70
1991 144.47
1992 126.54
1993 107.68
1994 172.57
1995 146.64
1996 172.57
1997 184.37
1998 185.57
1999 184.37
2000 181.99
2001 176.07
2002 110.572003 143.392004 194.05
LA
UN
E C
AT
CH
ME
NT
22006 RIVER FLESK @ FLESK BRIDGE
Moments PWM L-Moments
AM Floods '47 to '04.(missing years:59,61-63,71,72,76 )
22006 RIVER FLESK @ FLESK BRIDGE EV1
50010050251052
0
50
100
150
200
250
300
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
300
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 37.00 N= 24
Year AMF(m3/s)
1981 9.29 Mean 11.915 M100 11.915 L1 11.915 L-Cv 0.089
1982 10.43 Median 11.466 M110 6.487 L2 1.060 L-Skew 0.179
1983 9.00 Std.Dev. 1.901 M120 4.533 L3 0.189 L-Kur 0.186
1984 14.31 CV 0.160 M130 3.513 L4 0.198
1985 16.35 HazenS. 1.168
1986 16.07
1987 11.12
1988 14.42
1989 12.45
1990 10.65
1991 11.09
1992 10.81
1993 10.21
1994 10.81
1995 9.82
1996 11.61
1997 11.32
1998 12.28
1999 13.33
2000 12.45
2001 12.11
2002 11.29
2003 12.28
2004 12.45
LA
UN
E C
AT
CH
ME
NT
22009 RIVER DREENAGH @ WHITE BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1981 to 2004.(no missing years)
22009 RIVER DREENAGH @ WHITE BRIDGEEV1
50010050251052
0
2
4
6
8
10
12
14
16
18
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
16
18
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.85
0.9
0.95
1
1.05
1.1
1.15
1.2
1.25
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= ? N= 14
Year AMF(m3/s)
1991 74.38 Mean 112.808 M100 112.808 L1 112.808 L-Cv 0.118
1992 74.04 Median 116.404 M110 63.075 L2 13.342 L-Skew -0.153
1993 100.10 Std.Dev. 22.830 M120 43.933 L3 -2.041 L-Kur 0.027
1994 133.99 CV 0.202 M130 33.714 L4 0.363
1995 97.31 HazenS. -0.855
1996 114.24
1997 116.84
1998 124.36
1999 140.61
2000 141.48
2001 125.71
2002 87.68
2003 115.97
2004 132.59
LA
UN
E C
AT
CH
ME
NT
22035 RIVER LAUNE @ LAUNE BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1991 to 2004.(no missing year )
22035 RIVER LAUNE @ LAUNE BRIDGE
50010050251052
0
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 231.00 N= 32
Year AMF(m3/s)
1972 17.82 Mean 23.473 M100 23.473 L1 23.473 L-Cv 0.142
1973 39.50 Median 23.119 M110 13.405 L2 3.338 L-Skew 0.077
1974 17.44 Std.Dev. 5.939 M120 9.536 L3 0.258 L-Kur 0.189
1975 13.96 CV 0.253 M130 7.466 L4 0.632
1976 12.78 HazenS. 0.663
1978 16.18
1979 14.20
1980 22.01
1981 23.28
1982 27.85
1983 27.85
1984 22.96
1985 22.64
1986 23.49
1987 25.97
1988 29.19
1989 35.21
1990 20.67
1991 20.15
1992 19.75
1993 24.45
1994 31.47
1995 27.74
1996 20.97
1997 23.70
1998 20.87
1999 25.86
2000 30.33
2001 26.08
2002 21.80
2003 19.95
2004 24.99
MA
IGU
E C
AT
CH
ME
NT
24002 RIVER CAMOGE @ GRAY'S BRIDGE
Moments PWM L-Moments
AMF 1972 to 2004.(missing years:'77)
24002 RIVER CAMOGE @ GRAY'S BRIDGE EV1
50010050251052
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 246.00 N= 52
Year AMF(m3/s)
1953 38.93 Mean 54.864 M100 54.864 L1 54.864 L-Cv 0.221
1954 33.75 Median 50.628 M110 33.485 L2 12.107 L-Skew 0.183
1955 49.06 Std.Dev. 21.630 M120 24.712 L3 2.221 L-Kur 0.101
1956 43.10 CV 0.394 M130 19.780 L4 1.219
1957 36.29 HazenS. 0.907
1958 40.98
1959 41.68
1960 49.84
1961 39.61
1962 30.16
1963 37.59
1964 62.41
1965 68.86
1966 40.98
1967 29.02
1968 99.75
1969 29.02
1970 31.63
1971 30.45
1972 32.23
1973 67.44
1974 32.83
1975 42.03
1976 27.73
1977 21.59
1978 55.50
1979 52.62
1980 53.44
1981 36.61
1982 61.08
1983 99.75
1984 47.91
1985 91.66
1986 67.44
1987 66.98
1988 97.98
1989 104.55
1990 50.63
1991 48.68
1992 45.65
1993 63.31
1994 83.98
1995 61.52
1996 78.23
1997 65.13
1998 98.57
1999 50.63
2000 83.98
2001 58.032002 58.032003 53.44
2004 60.63
24004 RIVER MAIGUE @ BRUREE
Moments PWM L-Moments
MA
IGU
E C
AT
CH
ME
NT
Annual Maximum Floods 1953 to 2004.(no missing year )
24004 RIVER MAIGUE @ BRUREE EV1
50010050251052
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 273.00 N= 33
Year AMF(m3/s)
1972 104.90 Mean 103.008 M100 103.008 L1 103.008 L-Cv 0.119
1973 171.74 Median 104.552 M110 57.644 L2 12.279 L-Skew -0.020
1974 88.27 Std.Dev. 22.509 M120 40.436 L3 -0.240 L-Kur 0.236
1975 96.51 CV 0.219 M130 31.363 L4 2.903
1976 55.47 HazenS. 0.422
1977 96.51
1978 103.65
1979 96.29
1980 124.66
1981 71.40
1982 114.22
1983 109.12
1984 67.09
1985 127.57
1986 81.12
1987 103.65
1988 126.60
1989 108.20
1990 82.79
1991 89.77
1992 61.19
1993 114.92
1994 130.50
1995 103.65
1996 108.66
1997 97.39
1998 123.70
1999 104.55
2000 110.04
2001 104.55
2002 89.55
2003 112.35
2004 118.69
DE
EL
C
AT
CH
ME
NT
24011 RIVER DEEL @ DEEL BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.(no missing year )
24011 RIVER DEEL @ DEEL BRIDGEEV1
500100502510520
20
40
60
80
100
120
140
160
180
200
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
20
40
60
80
100
120
140
160
180
200
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 359.00 N= 41
Year AMF(m3/s)
1964 100.77 Mean 110.453 M100 110.453 L1 110.453 L-Cv 0.090
1965 112.82 Median 109.994 M110 60.207 L2 9.962 L-Skew 0.010
1966 104.88 Std.Dev. 17.400 M120 41.816 L3 0.103 L-Kur 0.127
1967 103.50 CV 0.158 M130 32.185 L4 1.267
1968 139.39 HazenS. -0.023
1969 89.65
1970 88.78
1971 95.37
1972 94.04
1973 141.95
1974 102.36
1975 107.66
1976 72.46
1977 109.06
1978 112.82
1979 107.20
1980 135.83
1981 85.76
1982 125.85
1983 115.19
1984 87.05
1985 133.81
1986 99.86
1987 118.07
1988 140.15
1989 120.24
1990 101.22
1991 100.77
1992 75.30
1993 122.91
1994 134.31
1995 110.46
1996 114.24
1997 105.57
1998 125.85
1999 109.99
2000 115.19
2001 114.24
2002 98.06
2003 118.07
2004 137.86
DE
EL
CA
TC
HM
EN
T24012 RIVER DEEL @ GRANGE BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1964 to 2004.(no missing years)
24012 RIVER DEEL @ GRANGE BRIDGEEV1
50010050251052
0
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 248.00 N= 25
Year AMF(m3/s)
1980 69.50 Mean 52.894 M100 52.894 L1 52.894 L-Cv -0.117
1981 39.10 Median 52.000 M110 23.364 L2 -6.165 L-Skew -3.197
1982 60.60 Std.Dev. 8.112 M120 17.834 L3 19.709 L-Kur 3.673
1983 67.70 CV 0.153 M130 14.244 L4 -22.646
1984 44.00 HazenS. 0.885
1985 72.20
1986 53.00
1987 50.90
1988 55.80
1989 51.80
1990 43.70
1991 47.90
1992 37.80
1993 53.50
1994 52.80
1995 50.10
1996 53.30
1997 50.20
1998 54.90
1999 51.82
2000 54.60
2001 53.10
2002 50.70
2003 51.32
2004 52.00
DE
EL
CA
TC
HM
EN
T24030 RIVER DEEL @ DANGANBEG
Moments PWM L-Moments
Annual Maximum Floods 1980 to 2004.(no missing years)
24030 RIVER DEEL @ DANGANBEGEV1
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 125.00 N= 30
Year AMF(m3/s)
1970 33.60 Mean 41.697 M100 41.697 L1 41.697 L-Cv 0.130
1971 41.10 Median 42.300 M110 23.562 L2 5.428 L-Skew -0.037
1972 43.70 Std.Dev. 9.409 M120 16.579 L3 -0.202 L-Kur 0.124
1973 42.80 CV 0.226 M130 12.850 L4 0.672
1974 48.80 HazenS. -0.156
1975 43.20
1976 23.30
1977 38.90
1978 35.70
1979 38.30
1980 31.10
1981 26.10
1982 56.90
1983 49.30
1984 29.40
1985 57.60
1986 37.90
1987 32.00
1988 41.80
1989 45.20
1990 44.90
1991 46.70
1992 40.50
1993 47.50
1994 59.50
1995 38.90
1996 49.10
1997 49.70
1998 51.90
2002 25.50
Note: Presence of embankment: 80% of values within embankment and top 20% overflow embankment
MU
LK
EA
R C
AT
CH
ME
NT
25004 RIVER BILBOA @ NEWBRIDGE
Moments PWM L-Moments
AMFloods 1955 to 2002.(missing years:'99,00,01)
25004 RIVER BILBOA @ NEWBRIDGEEV1
50010050251052
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 1227.00 N= 51
Year AMF(m3/s)
1954 194.25 Mean 85.641 M100 85.641 L1 85.641 L-Cv 0.180
1955 106.35 Median 82.025 M110 50.539 L2 15.437 L-Skew 0.143
1956 98.71 Std.Dev. 28.881 M120 36.634 L3 2.213 L-Kur 0.234
1957 118.81 CV 0.337 M130 29.091 L4 3.612
1958 77.55 HazenS. 1.308
1959 133.93
1960 83.54
1961 54.63
1962 46.52
1963 41.09
1964 82.02
1965 86.63
1966 94.59
1967 82.78
1968 118.81
1969 73.21
1970 63.57
1971 41.41
1972 38.27
1973 73.21
1974 77.92
1975 40.03
1976 82.02
1977 64.23
1978 76.82
1979 75.36
1980 58.44
1981 68.99
1982 79.03
1983 83.16
1984 87.02
1985 68.30
1986 85.85
1987 78.29
1988 54.63
1989 126.26
1990 76.82
1991 81.65
1992 86.63
1993 90.56
1994 135.89
1995 62.91
1996 78.29
1997 88.19
1998 88.98
1999 119.73
2000 109.83
2001 113.38
2002 100.382003 84.312004 133.93
BR
OS
NA
C
AT
CH
ME
NT
25011 RIVER BROSNA @ MOYSTOWN
Moments PWM L-Moments
Annual Maximum Floods 1972 to 2004.(no missing year )
25011 RIVER BROSNA @ MOYSTOWNEV1
50010050251052
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 197.00 N= 35
Year AMF(m3/s)
1969 43.65 Mean 46.598 M100 46.598 L1 46.598 L-Cv 0.186
1970 26.72 Median 43.653 M110 27.630 L2 8.663 L-Skew 0.157
1971 39.08 Std.Dev. 15.375 M120 20.091 L3 1.361 L-Kur 0.113
1972 29.69 CV 0.330 M130 15.937 L4 0.981
1973 66.96 HazenS. 0.935
1974 48.74
1975 23.55
1976 30.50
1977 29.28
1978 53.02
1979 37.01
1980 36.33
1981 27.89
1982 51.13
1983 44.65
1984 39.32
1985 58.92
1986 37.23
1987 51.40
1988 37.92
1989 60.37
1991 63.92
1992 27.10
1993 44.40
1994 73.26
1995 38.15
1996 45.40
1997 41.94
1998 41.70
1999 69.44
2000 62.72
2001 66.65
2002 51.40
2003 41.94
2004 89.55
KIL
LIM
OR
C
AT
CH
ME
NT
25020 RIVER KILLIMOR @ KILLEEN
Moments PWM L-Moments
Annual Maximum Floods 1969 to 2004.( missing year 90 )
25020 RIVER KILLIMOR @ KILLEENEV1
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
90
100
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1.1
1.3
1.5
1.7
1.9
2.1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 139.00 N= 17
Year AMF(m3/s)
1987 32.00 Mean 42.076 M100 42.076 L1 42.076 L-Cv 0.151
1988 26.30 Median 39.300 M110 24.218 L2 6.359 L-Skew 0.173
1989 43.40 Std.Dev. 11.380 M120 17.388 L3 1.099 L-Kur 0.218
1990 43.90 CV 0.270 M130 13.724 L4 1.383
1991 44.40 HazenS. 1.298
1992 26.90
1993 38.80
1994 67.90
1995 45.20
1996 62.60
1997 38.70
1998 39.20
1999 45.60
2000 39.30
2001 34.20
2002 31.90
2004 55.00
SH
AN
NO
N L
W C
AT
CH
ME
NT
25038 RIVER NENAGH @ TYONE
Moments PWM L-Moments
Annual Maximum Floods 1987 to 2004.( missing year 03 )
25038 RIVER NENAGH @ TYONE
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 100.00 N= 35
Year AMF(m3/s)
1970 37.00 Mean 20.032 M100 20.032 L1 20.032 L-Cv 0.215
1971 40.80 Median 17.170 M110 12.175 L2 4.317 L-Skew 0.347
1972 34.60 Std.Dev. 8.252 M120 9.085 L3 1.497 L-Kur 0.175
1973 38.80 CV 0.412 M130 7.363 L4 0.756
1974 35.20 HazenS. 1.640
1975 14.28
1976 10.47
1977 12.49
1978 15.22
1979 12.49
1980 14.47
1981 12.14
1982 13.55
1983 12.84
1984 12.66
1985 16.77
1986 17.37
1987 27.17
1988 19.86
1989 15.51
1990 18.80
1991 17.78
1992 27.17
1993 16.77
1994 15.89
1995 25.73
1996 19.01
1997 15.89
1998 17.17
1999 19.43
2000 15.60
2001 18.39
2002 24.78
2003 15.60
2004 19.43
RIN
N C
AT
CH
ME
NT
26010 RIVER CLOONE @ RIVERSTOWN
Moments PWM L-Moments
Annual Maximum Floods 1970 to 2004.(no missing years)
26010 RIVER CLOONE @ RIVERSTOWN EV1
50010050251052
0
5
10
15
20
25
30
35
40
45
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 222.00 N= 16
Year AMF(m3/s)
1989 46.72 Mean 44.103 M100 44.103 L1 44.103 L-Cv 0.125
1990 37.04 Median 42.816 M110 24.799 L2 5.495 L-Skew 0.187
1991 47.87 Std.Dev. 10.005 M120 17.620 L3 1.027 L-Kur 0.257
1992 31.30 CV 0.227 M130 13.826 L4 1.411
1993 43.62 HazenS. 1.799
1994 42.01
1995 54.77
1996 38.32
1997 36.78
1998 54.02
1999 70.90
2000 29.76
2001 44.10
2002 39.89
2003 41.04
2004 47.52
BO
YL
E C
AT
CH
ME
NT
26014 RIVER LUNG @ BANADA BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1987 to 2004.( missing year 03 )
26014 RIVER LUNG @ BANADA BRIDGE
500100502510520
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 59.00 N= 24
Year AMF(m3/s)
1981 5.11 Mean 5.977 M100 5.977 L1 5.977 L-Cv 0.208
1982 4.01 Median 5.345 M110 3.609 L2 1.242 L-Skew 0.278
1983 4.50 Std.Dev. 2.282 M120 2.671 L3 0.346 L-Kur 0.182
1984 4.60 CV 0.382 M130 2.151 L4 0.226
1985 4.47 HazenS. 1.596
1986 4.51
1987 4.24
1988 4.18
1989 10.30
1990 8.64
1991 6.63
1992 5.68
1993 5.45
1994 8.94
1995 6.55
1996 5.47
1997 4.85
1998 5.24
1999 2.60
2000 5.95
2001 7.66
2002 8.03
2003 3.63
2004 12.20
INN
Y C
AT
CH
ME
NT
26058 RIVER INNY UPPER @ BALLINRINK BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1981 to 2004.(no missing years)
26058 RIVER INNY UPPER @ BALLINRINK BRIDGE
EV1
50010050251052
0
2
4
6
8
10
12
14
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
2
4
6
8
10
12
14
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.2
0.4
0.6
0.8
1
1.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 533.00 N= 15
Year AMF(m3/s)
1990 67.07 Mean 56.289 M100 56.289 L1 56.289 L-Cv 0.108
1991 73.07 Median 57.316 M110 31.182 L2 6.074 L-Skew 0.063
1992 58.65 Std.Dev. 10.285 M120 21.864 L3 0.385 L-Kur -0.061
1993 57.32 CV 0.183 M130 16.883 L4 -0.373
1994 70.03 HazenS. 0.275
1995 49.71
1996 48.51
1997 47.32
1998 50.93
1999 62.77
2000 43.88
2001 67.07
2002 43.88
2003 42.77
2004 61.38
BO
YL
E
CA
TC
HM
EN
T26108 RIVER OWENURE @ BOYLE ABBEY BRIDGE
Moments PWM L-Moments
Annual Maximum Floods 1990 to 2004.(no missing year )
26108 RIVER OWENURE @ BOYLE ABBEY BRIDGE
50010050251052
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
80
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 168.00 N= 17
Year AMF(m3/s)
1957 45.77 Mean 52.693 M100 52.693 L1 52.693 L-Cv 0.159
1958 27.54 Median 47.584 M110 30.526 L2 8.359 L-Skew 0.474
1959 49.44 Std.Dev. 21.066 M120 22.404 L3 3.961 L-Kur 0.608
1960 59.32 CV 0.400 M130 18.179 L4 5.081
1963 47.58 HazenS. 4.888
1964 55.24
1965 45.77
1966 42.27
1967 47.58
1968 129.28
1969 48.81
1970 47.58
1971 44.00
1972 55.91
1973 59.32
1974 45.77
1975 44.58
DO
ON
BE
G C
AT
CH
ME
NT
28001 RIVER INAGH @ ENNISTIMON
Moments PWM L-Moments
AMF 1957 to 1975.( missing years:'61,62)
28001 RIVER INAGH @ ENNISTIMON
50010050251052
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 278.00 N= 22
Year AMF(m3/s)
1983 27.71 Mean 27.830 M100 27.830 L1 27.830 L-Cv 0.124
1984 27.93 Median 26.495 M110 15.638 L2 3.446 L-Skew 0.152
1985 22.35 Std.Dev. 6.154 M120 11.087 L3 0.525 L-Kur 0.205
1986 25.95 CV 0.221 M130 8.675 L4 0.706
1987 24.23 HazenS. 1.033
1988 19.53
1989 32.76
1990 25.30
1991 23.81
1992 26.82
1993 29.06
1994 39.60
1995 23.81
1996 25.95
1997 26.17
1998 29.51
1999 32.76
2000 32.52
2001 34.42
2002 22.14
2003 17.03
2004 42.93
DU
NK
EL
LIN
CA
TC
HM
EN
T
29007 RIVER L.CULLAUN @ CRAUGHWELL
Moments PWM L-Moments
Annual Maximum Floods 1983 to 2004.(no missing years)
29007 RIVER L.CULLAUN @ CRAUGHWELLEV1
50010050251052
0
5
10
15
20
25
30
35
40
45
50
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
45
50
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 1075.40 N= 9
Year AMF(m3/s)
1996 126.00 Mean 126.889 M100 126.889 L1 126.889 L-Cv 0.072
1997 122.00 Median 126.000 M110 68.042 L2 9.194 L-Skew 0.132
1998 114.00 Std.Dev. 15.512 M120 47.095 L3 1.210 L-Kur 0.152
1999 155.00 CV 0.122 M130 36.232 L4 1.397
2000 126.00 HazenS. 1.002
2001 138.00
2002 105.00
2003 115.00
2004 141.00
CO
RR
IB C
AT
CH
ME
NT
30012 RIVER CLARE @ CLAREGALWAY
Moments PWM L-Moments
Annual Maximum Floods 1996 to 2004.(no missing years)
30012 RIVER CLARE @ CLAREGALWAY
50010050251052
0
20
40
60
80
100
120
140
160
180
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
160
180
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 138.00 N= 26
Year AMF(m3/s)
1976 15.20 Mean 28.173 M100 28.173 L1 28.173 L-Cv 0.176
1977 20.70 Median 27.200 M110 16.565 L2 4.957 L-Skew 0.211
1978 17.40 Std.Dev. 9.578 M120 12.044 L3 1.044 L-Kur 0.290
1979 19.90 CV 0.340 M130 9.607 L4 1.439
1982 31.00 HazenS. 2.174
1983 27.00
1985 32.10
1986 37.60
1987 27.40
1988 26.70
1989 38.90
1990 26.70
1991 30.80
1992 26.40
1993 22.10
1994 29.20
1995 27.40
1996 16.10
1997 28.70
1998 60.70
1999 44.20
2000 19.30
2001 31.00
2002 20.90
2003 26.70
2004 28.40
CO
RR
IB C
AT
CH
ME
NT
30021 RIVER ROBE @ CHRISTINA'S BR.
Moments PWM L-Moments
AM Floods 1976 to 2004.(missing years: 80,81,84 )
30021 RIVER ROBE @ CHRISTINA'S BR.
EV1
50010050251052
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
10
20
30
40
50
60
70
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 891.00 N= 24
Year AMF(m3/s)
1979 82.27 Mean 94.353 M100 94.353 L1 94.353 L-Cv 0.102
1980 88.81 Median 93.878 M110 52.000 L2 9.648 L-Skew -0.019
1981 77.53 Std.Dev. 17.097 M120 36.244 L3 -0.184 L-Kur 0.129
1982 93.88 CV 0.181 M130 27.946 L4 1.245
1983 93.88 HazenS. -0.623
1984 77.53
1985 79.09
1986 121.31
1987 97.33
1988 79.09
1989 119.37
1990 102.63
1991 83.88
1992 106.25
1993 97.33
1994 122.28
1995 48.24
1996 85.51
1997 92.17
1998 106.25
1999 111.78
2000 109.92
2001 102.63
2002 85.51
CO
RR
IB C
AT
CH
ME
NT
30031 RIVER CONG @ CONG WEIR
Moments PWM L-Moments
Annual Maximum Floods 1979 to 2002.(no missing year )
30031 RIVER CONG @ CONG WEIR EV1
50010050251052
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 210.00 N= 21
Year AMF(m3/s)
1982 0.66 Mean 1.799 M100 1.799 L1 1.799 L-Cv 0.211
1983 0.45 Median 1.785 M110 1.089 L2 0.379 L-Skew -0.091
1984 1.64 Std.Dev. 0.671 M120 0.783 L3 -0.034 L-Kur 0.180
1985 1.75 CV 0.373 M130 0.615 L4 0.068
1986 1.65 HazenS. -0.422
1987 2.29
1988 1.51
1989 2.14
1990 1.62
1991 2.11
1992 2.32
1993 1.62
1994 2.32
1995 0.78
1996 1.84
1997 2.20
1998 2.63
1999 3.19
2000 1.00
2001 1.79
2002 2.29
CO
RR
IB C
AT
CH
ME
NT
30037 RIVER ROBE @ CLOONCORMICK
Moments PWM L-Moments
AMF 1982 to 2002.( no missing years)
30037 RIVER ROBE @ CLOONCORMICK
50010050251052
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.1
0.2
0.3
0.4
0.5
0.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
B A (km2)= 891.00 N= 26
Year AMF(m3/s)
1978 59.10 Mean 49.077 M100 49.077 L1 49.077 L-Cv 0.200
1979 103.00 Median 43.200 M110 29.436 L2 9.794 L-Skew 0.312
1980 59.00 Std.Dev. 18.632 M120 21.766 L3 3.058 L-Kur 0.196
1981 37.80 CV 0.380 M130 17.537 L4 1.918
1982 47.70 HazenS. 2.044
1983 94.80
1984 59.70
1985 48.80
1986 64.10
1987 42.30
1988 26.70
1989 67.40
1990 66.00
1991 44.10
1992 30.80
1993 34.20
1994 36.80
1995 32.10
1996 42.30
1997 38.10
1998 42.30
1999 45.20
2000 48.20
2001 32.10
2003 38.00
2004 35.40
CO
RR
IB C
AT
CH
ME
NT
31072 RIVER CONG @ CONG WEIR
Moments PWM L-Moments
Annual Maximum Floods 1978 to 2004.( missing year '02 )
31072 RIVER CONG @ CONG WEIR EV1
2 5 10 25 50 100 500
0
20
40
60
80
100
120
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 68.60 N= 26
Year AMF(m3/s)
1980 53.20 Mean 74.880 M100 74.880 L1 74.880 L-Cv 0.171
1981 59.50 Median 64.865 M110 43.852 L2 12.825 L-Skew 0.173
1982 62.70 Std.Dev. 22.599 M120 31.742 L3 2.216 L-Kur 0.064
1983 63.00 CV 0.302 M130 25.086 L4 0.820
1984 98.30 HazenS. 0.750
1985 53.60
1986 101.00
1987 82.60
1988 125.00
1989 84.90
1990 60.80
1991 88.50
1992 57.80
1993 62.70
1994 57.00
1995 60.00
1996 66.73
1997 82.47
1998 106.51
1999 106.34
2000 84.30
2001 112.18
2002 35.97
2003 74.96
2004 50.24
2005 56.56
BU
NO
WE
N C
AT
CH
ME
NT
32011 RIVER BUNOWEN @ LOUISBERG WEIR
Moments PWM L-Moments
Annual Maximum Floods 1980 to 2005.(no missing years)
32011 RIVER BUNOWEN @ LOUISBERG WEIREV1
2 5 10 25 50 100 500
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 73.00 N= 25
Year AMF(m3/s)
1979 59.00 Mean 62.108 M100 62.108 L1 62.108 L-Cv 0.154
1980 74.20 Median 59.300 M110 35.850 L2 9.591 L-Skew 0.198
1981 86.20 Std.Dev. 17.567 M120 25.815 L3 1.899 L-Kur 0.190
1982 74.10 CV 0.283 M130 20.409 L4 1.823
1983 43.10 HazenS. 1.653
1984 50.80
1985 59.50
1986 116.00
1987 67.70
1988 85.80
1989 67.70
1990 42.40
1991 81.90
1992 62.90
1993 59.30
1994 60.70
1995 45.90
1996 38.80
1997 53.20
1998 67.60
1999 52.30
2000 56.50
2001 57.10
2002 50.40
2003 39.60
GL
EN
AM
OY
CA
TC
HM
EN
T33001 RIVER GLENAMOY @ GLENAMOY
Moments PWM L-Moments
Annual Maximum Floods 1979 to 2003.( no missing year)
33001 RIVER GLENAMOY @ GLENAMOY
EV1
2 5 10 25 50 100 500
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
20
40
60
80
100
120
140
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 156.00 N= 53
Year AMF(m3/s)
1952 35.81 Mean 90.373 M100 90.373 L1 90.373 L-Cv 0.199
1953 117.91 Median 84.482 M110 54.199 L2 18.024 L-Skew 0.142
1954 129.19 Std.Dev. 32.291 M120 39.563 L3 2.561 L-Kur 0.103
1955 65.28 CV 0.357 M130 31.437 L4 1.854
1956 80.33 HazenS. 0.957
1957 141.88
1958 84.48
1959 69.90
1960 76.25
1961 143.58
1962 47.78
1963 98.89
1964 131.83
1965 100.37
1966 79.78
1967 62.01
1968 120.81
1969 122.42
1970 99.22
1971 42.60
1972 65.78
1973 86.93
1974 78.74
1975 79.64
1976 63.29
1977 114.31
1978 114.82
1979 118.45
1980 104.21
1981 54.49
1982 96.38
1983 63.29
1984 76.61
1985 143.97
1986 129.68
1987 94.08
1988 138.41
1989 198.91
1990 65.45
1991 109.32
1992 65.45
1993 61.33
1994 51.87
1995 46.64
1996 64.62
1997 58.11
1998 96.96
1999 87.49
2000 73.102001 96.962002 93.13
2003 65.03
2004 81.98
34007 RIVER AT DEEL @ BALLYCARROON
Moments PWM L-Moments
MO
Y C
AT
CH
ME
NT
Annual Maximum Floods 1952 to 2004.(no missing years)
34007 RIVER AT DEEL @ BALLYCARROON
EV1
2 5 10 25 50 100 500
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
500100502510520.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
A2 A (km2)= 471.00 N= 12
Year AMF(m3/s)
1954 181.26 Mean 123.290 M100 123.290 L1 123.290 L-Cv 0.172
1955 89.54 Median 113.716 M110 72.278 L2 21.266 L-Skew 0.205
1956 117.63 Std.Dev. 36.739 M120 52.456 L3 4.360 L-Kur 0.110
1957 144.57 CV 0.298 M130 41.599 L4 2.344
1958 108.62 HazenS. 1.305
1959 124.98
1960 98.08
1961 146.51
1962 90.67
1963 109.81
1964 193.07
1966 74.75
MO
Y C
AT
CH
ME
NT
34010 RIVER MOY @ CLOONACANNANA
Moments PWM L-Moments
AMF 1954 to 1966.(missing year: '65)
34010 RIVER MOY @ CLOONACANNANA
50010050251052
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0
50
100
150
200
250
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
A2 A (km2)= 318.00 N= 49
Year AMF(m3/s)
1955 11.83 Mean 17.906 M100 17.906 L1 17.906 L-Cv 0.102
1956 17.98 Median 18.225 M110 9.864 L2 1.821 L-Skew -0.104
1957 13.81 Std.Dev. 3.190 M120 6.848 L3 -0.189 L-Kur 0.106
1958 12.26 CV 0.178 M130 5.258 L4 0.193
1959 18.23 HazenS. -0.511
1960 17.36
1961 17.85
1962 15.79
1963 20.00
1964 22.92
1965 21.51
1966 18.85
1967 20.00
1968 18.23
1969 16.87
1970 14.50
1971 12.48
1972 10.26
1973 15.08
1974 20.92
1975 12.92
1976 18.73
1977 15.43
1978 16.99
1979 18.60
1980 18.35
1981 16.38
1982 17.60
1983 19.88
1985 16.14
1986 18.23
1987 19.81
1988 13.48
1989 20.65
1990 23.60
1991 15.37
1992 19.04
1993 19.17
1994 21.11
1995 21.11
1996 18.35
1997 19.49
1998 17.83
1999 22.51
2000 21.18
2001 22.78
2002 21.18
2003 13.70
2004 21.05
36011 RIVER ERNE @ BELLAHILLAN
Moments PWM L-Moments
ER
NE
CA
TC
HM
EN
T
Annual Maximum Floods 1955 to 2004.(missing year '84)
36011 RIVER ERNE @ BELLAHILLAN EV1
50010050251052
0
5
10
15
20
25
30
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
5 10 25 50 100 5002
0
5
10
15
20
25
30
-6 -4 -2 0 2 4 6 8
Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
1
1.05
1.1
1.15
1.2
1.25
1.3
1.35
1.4
1.45
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log10(A
MF
)
B A (km2)= 66.00 N= 20
Year AMF(m3/s)
1974 5.39 Mean 6.355 M100 6.355 L1 6.355 L-Cv 0.087
1975 4.92 Median 6.493 M110 3.455 L2 0.554 L-Skew -0.036
1976 4.82 Std.Dev. 0.952 M120 2.392 L3 -0.020 L-Kur 0.014
1977 5.08 CV 0.150 M130 1.834 L4 0.008
1978 5.71 HazenS. -0.063
1979 5.55
1980 6.32
1981 5.82
1982 6.04
1983 6.67
1984 7.08
1985 7.14
1986 7.08
1987 7.20
1988 5.66
1989 7.63
1990 6.96
1991 6.90
1992 8.13
1993 7.02
Lo
we
r L
ou
gh
Ern
e C
AT
CH
ME
NT
36071 RIVER L.SCUR @ GOWLY
Moments PWM L-Moments
AMF 1974 to 1993.(missing years:'00,01)
36071 RIVER L.SCUR @ GOWLY
50010050251052
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 109.00 N= 33
Year AMF(m3/s)
1972 62.13 Mean 70.020 M100 70.020 L1 70.020 L-Cv 0.085
1973 71.11 Median 70.628 M110 37.995 L2 5.969 L-Skew 0.084
1974 64.91 Std.Dev. 11.506 M120 26.409 L3 0.502 L-Kur 0.257
1975 70.63 CV 0.164 M130 20.394 L4 1.534
1976 68.70 HazenS. 1.776
1977 60.31
1978 61.67
1979 74.55
1980 63.98
1981 49.87
1982 71.60
1983 74.55
1984 72.58
1985 61.67
1986 73.07
1987 80.11
1988 70.14
1989 80.11
1990 83.21
1991 113.38
1992 68.22
1993 64.91
1994 58.96
1995 73.07
1996 70.14
1997 77.06
1998 72.09
1999 83.21
2000 77.06
2001 51.13
2002 72.09
2003 53.68
2004 60.76
OW
EN
EA
CA
TC
HM
EN
T38001 RIVER OWENEA @ CLONCONWAL
Moments PWM L-Moments
Annual Maximum Floods 1966 to 2001.( no missing year)
38001 RIVER OWENEA @ CLONCONWAL
EV1
2 5 10 25 50 100 500
-10
10
30
50
70
90
110
130
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
50010050251052
-10
10
30
50
70
90
110
130
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
B A (km2)= 49.00 N= 30
Year AMF(m3/s)
1973 37.60 Mean 44.877 M100 44.877 L1 44.877 L-Cv 0.115
1974 43.10 Median 44.250 M110 25.019 L2 5.161 L-Skew 0.012
1975 53.90 Std.Dev. 8.862 M120 17.550 L3 0.064 L-Kur 0.078
1976 33.30 CV 0.197 M130 13.578 L4 0.405
1977 46.10 HazenS. 0.056
1978 50.20
1979 55.10
1980 43.90
1982 38.90
1983 40.60
1984 61.50
1985 51.50
1986 47.80
1987 51.40
1988 38.00
1989 55.90
1990 60.10
1991 44.60
1992 30.90
1993 28.00
1994 43.10
1995 57.70
1996 44.70
1997 33.40
1998 41.10
1999 43.80
2000 36.30
2001 48.50
2002 33.90
2004 51.40
SW
ILL
Y C
AT
CH
ME
NT
39001 RIVER NEW MILLS @ SWILLY
Moments PWM L-Moments
AMFloods 1973 to 2004.(missing years:'81)
39001 RIVER NEW MILLS @ SWILLYEV1
50010050251052
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s
)
winter peak
summer peak
LO2
500100502510520
10
20
30
40
50
60
70
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s
)
LogNormal
50010050251052
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log
10
(AM
F)
ESB Stations
B A (km2)= N= 20Year AMF(m3 /s)1977 73.17 Mean 79.688 M100 79.688 L1 79.688 L-Cv 0.2121978 157.21 Median 71.886 M110 48.273 L2 16.859 L-Skew 0.2981979 64.63 Std.Dev. 30.601 M120 35.829 L3 5.021 L-Kur 0.1241980 87.69 CV 0.384 M130 28.868 L4 2.0901981 56.49 HazenS. 1.6731982 75.331983 55.171984 48.121985 125.271986 60.511988 132.221989 103.521990 97.231991 54.191992 50.641993 70.611994 61.191995 46.871998 79.302000 94.40
LEE
CA
TCH
ME
NT
19014 RIVER LEE @ DROMCARRA
Moments PWM L-MomentsAMFloods 1977 to 2000.(missing year:'87,96,97,99)
19014 RIVER LEE @ DROMCARRA
2 5 10 25 50 100 5000
20
40
60
80
100
120
140
160
180
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s)
winter peak
summer peak
LO2
500100502510520
20
40
60
80
100
120
140
160
180
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log1
0(A
MF)
B A (km2)= N= 8Year AMF(m3 /s)1984 20.25 Mean 28.737 M100 28.737 L1 28.737 L-Cv 0.0941986 25.98 Median 29.581 M110 15.724 L2 2.711 L-Skew -0.1361987 34.87 Std.Dev. 4.602 M120 10.873 L3 -0.369 L-Kur 0.2221988 29.76 CV 0.160 M130 8.342 L4 0.6011990 25.98 HazenS. -1.3471991 33.041994 30.601995 29.40
LEE
CA
TCH
ME
NT
19016 RIVER BRIDE @ OVENS BRIDGE
Moments PWM L-MomentsAMFloods 1984 to 1995.(missing year:'85,89,92,93)
19016 RIVER BRIDE @ OVENS BRIDGE
2 5 10 25 50 100 500
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s)
winter peak
summer peak
LO2
50010050251052
0
5
10
15
20
25
30
35
40
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s)
LogNormal
50010050251052
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log1
0(A
MF)
B A (km2)= N= 9Year AMF(m3 /s)1982 101.50 Mean 131.095 M100 131.095 L1 131.095 L-Cv 0.1591983 97.52 Median 135.900 M110 75.960 L2 20.826 L-Skew 0.1561984 159.65 Std.Dev. 35.644 M120 54.653 L3 3.249 L-Kur 0.1731985 135.90 CV 0.272 M130 43.138 L4 3.6081986 141.68 HazenS. 1.4571987 117.071988 139.351989 201.181990 86.00
LEE
CA
TCH
ME
NT
19031 RIVER SULLANE @ MACROOM
Moments PWM L-MomentsAMFloods 1982 to 1990.(no missing year)
19031 RIVER SULLANE @ MACROOM
2 5 10 25 50 100 500
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5 6 7EV1 y
AM
F(m
3/s)
winter peak
summer peak
LO2
500100502510520
50
100
150
200
250
-6 -4 -2 0 2 4 6 8Logistic reduced variate
AM
F(m
3/s)
LogNormal
50010050251052
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
-3 -2 -1 0 1 2 3 4Normal N(0,1) y
log1
0(A
MF)
Appendix 4Drainage
A2 A(km2)= 126.00 N= 26
Year AMF(m3/s) Year AMF(m
3/s)
1975 15.40 1990 12.100
1976 30.40 1991 62.300
1977 15.40 1992 36.100
1978 23.40 1993 29.000
1979 21.50 1994 32.700
1980 26.20 1995 40.10
1981 20.10 1996 31.80
1982 23.80 1997 26.40
1983 23.90 1998 44.60
1984 19.40 1999 40.80
1985 20.60 2000 41.00
2001 48.60
2002 52.90
2003 35.80
2004 60.50
3051 RIVER BLACKWATER @ FAULKLAND
Pre-Drainage Post-Drainage
UL
ST
ER
BL
AC
KW
AT
ER
CA
TC
HM
EN
T
Drainage Works: '86-'89
3051 RIVER BLACKWATER @ FAULKLAND
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A2 A(km2)= 285.00 N= 46
Year AMF(m3/s) Year AMF(m
3/s)
1953 9.92 1979 19.162
1954 27.59 1980 16.220
1955 10.50 1981 17.899
1956 10.30 1982 22.253
1957 17.56 1983 23.604
1958 9.73 1984 25.87
1959 21.15 1985 19.51
1960 18.26 1986 16.66
1961 12.10 1987 19.86
1962 13.78 1988 10.27
1963 15.30 1989 27.80
1964 22.14 1990 15.78
1965 36.91 1991 17.79
1966 19.69 1992 24.98
1967 21.15 1993 19.28
1968 25.99 1994 27.28
1969 17.33 1995 13.02
1970 25.21 1996 13.12
1971 25.21 1997 18.24
1972 11.49 1998 16.66
1999 18.24
2000 25.23
2001 22.01
2002 28.59
2003 13.02
2004 26.89
7002 RIVER DEEL @ KILLYON BRIDGE
Pre-Drainage Post-Drainage
BO
YN
E C
AT
CH
ME
NT
Drainage Works: 3/74- 4/79
7002 RIVER DEEL @ KILLYON BRIDGE
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1+B A(km2)= 179.00 N= 46
Year AMF(m3/s) Year AMF(m
3/s)
1953 9.94 1975 14.287
1954 17.94 1976 15.687
1955 7.37 1977 16.339
1956 N/A 1978 22.281
1957 13.79 1979 24.029
1958 14.67 1980 19.27
1959 11.94 1981 17.40
1960 12.78 1982 21.87
1961 9.55 1983 21.00
1962 11.66 1984 24.08
1963 8.93 1985 24.03
1964 16.04 1986 21.87
1965 20.09 1987 19.78
1966 12.78 1988 11.76
1967 12.64 1989 26.87
1968 12.92 1990 20.90
1969 9.43 1991 19.02
1992 30.99
1993 18.91
1994 26.72
1995 15.84
1996 16.64
1997 19.32
1998 22.28
1999 22.18
2000 27.55
2001 24.13
2002 30.89
2003 23.10
2004 37.05
7003 RIVER ENFIELD BLACKWATER@ CASTLERICKARD
Pre-Drainage Post-Drainage
BO
YN
E C
AT
CH
ME
NT
Drainage Works: 1970- 1975
7003 RIVER ENFIELD BLACKWATER@ CASTLERICKARD
0
5
10
15
20
25
30
35
40
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A2 A(km2)= 256.00 N= 48
Year AMF(m3/s) Year AMF(m
3/s)
1956 17.67 1982 17.53
1957 15.45 1983 20.31
1958 11.88 1984 17.49
1959 18.04 1985 13.34
1960 16.35 1986 15.89
1961 15.67 1987 23.26
1962 17.46 1988 17.77
1963 19.30 1989 24.22
1964 21.15 1990 25.00
1965 19.60 1991 25.40
1966 19.12 1992 21.18
1967 18.70 1993 24.03
1968 17.67 1994 24.03
1969 16.01 1995 30.08
1970 13.24 1996 22.50
1971 12.05 1997 21.74
1972 10.35 1998 21.18
1973 15.32 1999 24.42
1974 18.06 2000 25.99
1975 13.51 2001 23.45
1976 14.88 2002 22.88
1977 15.68 2003 16.65
1978 19.56 2004 26.19
1979 16.72
1980 15.50
7004 RIVER KELLS BLACKWATER @ STRAMATT
Pre-Drainage Post-Drainage
Drainage Works: 1973-1981
BO
YN
E C
AT
CH
ME
NT
7004 RIVER KELLS BLACKWATER @ STRAMATT
0
5
10
15
20
25
30
35
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1 A(km2)= 1282.00 N= 47
Year AMF(m3/s) Year AMF(m
3/s)
1953 56.06 1975 60.627
1954 196.48 1976 86.477
1955 72.06 1977 77.543
1956 73.98 1978 129.709
1957 86.10 1979 137.297
1958 52.82 1980 119.30
1959 90.38 1981 95.42
1960 102.74 1982 119.89
1961 56.89 1983 95.42
1962 66.48 1984 124.62
1963 63.78 1985 95.97
1964 105.09 1986 83.56
1965 186.52 1987 98.73
1966 87.16 1988 51.36
1967 97.01 1989 132.73
1968 134.24 1990 102.64
1969 74.95 1991 109.35
1970 78.91 1992 147.31
1993 104.42
1994 139.96
1995 79.24
1996 79.76
1997 84.24
1998 105.54
2000 137.25
2001 116.80
2002 153.22
2003 91.73
2004 136.76
7005 RIVER BOYNE @ TRIM
Pre-Drainage Post-Drainage
BO
YN
E C
AT
CH
ME
NT
Drainage Works: 1971- 1974
7005 RIVER BOYNE @ TRIM
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1+B A(km2)= 432.00 N= 45
Year AMF(m3/s) Year AMF(m
3/s)
1953 31.34 1979 33.475
1954 54.30 1980 40.588
1955 27.21 1981 28.240
1956 26.37 1982 40.473
1957 42.96 1983 36.090
1958 18.37 1984 42.55
1959 45.64 1985 35.32
1960 44.09 1986 27.43
1961 N/A 1987 44.31
1962 31.04 1988 17.29
1963 18.42 1989 53.44
1964 36.52 1990 34.34
1965 74.02 1991 40.59
1966 35.85 1992 59.83
1967 33.87 1993 35.43
1968 49.23 1994 54.70
1969 23.44 1995 25.05
1970 24.98 1996 21.33
1971 21.19 1997 28.24
1972 15.95 1998 28.75
1999 28.55
2000 44.90
2001 33.80
2002 49.23
2003 35.98
2004 44.66
7007 RIVER BOYNE @ BOYNE AQUADUCT
Pre-Drainage Post-Drainage
BO
YN
E C
AT
CH
ME
NT
Drainage works: 73-78
7007 RIVER BOYNE @ BOYNE AQUADUCT
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1+A2 A(km2)= 717.00 N= 46
Year AMF(m3/s) Year AMF(m
3/s)
1953 18.86 1986 55.039
1954 63.79 1987 68.364
1955 12.98 1988 59.347
1956 26.33 1989 77.361
1957 29.16 1990 73.069
1958 18.56 1991 66.31
1959 30.25 1992 68.36
1960 31.36 1993 75.74
1961 20.09 1994 80.09
1962 24.95 1995 90.84
1963 26.33 1996 59.83
1964 39.60 1997 55.51
1965 38.78 1998 73.07
1966 28.08 1999 60.81
1967 36.37 2000 89.11
1968 32.87 2001 62.79
1969 23.95 2002 79.00
1970 N/A 2003 50.41
1971 N/A 2004 76.28
1972 24.35
1973 49.15
1974 50.05
1975 34.87
1976 48.25
1977 43.88
1978 72.12
1979 59.93
1980 63.39
1981 67.95
7010 RIVER KELLS BLACKWATER @ LISCARTON
Pre-Drainage Post-Drainage
BO
YN
E C
AT
CH
ME
NT
Drainage Works: 1982- 1986
7010 RIVER KELLS BLACKWATER @ LISCARTON
0
10
20
30
40
50
60
70
80
90
100
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A2+B A(km2)= 294.00 N= 44
Year AMF(m3/s) Year AMF(m
3/s)
1958 10.38 1983 27.336
1959 19.02 1984 24.413
1960 16.56 1985 20.877
1961 16.90 1986 26.486
1962 17.95 1987 36.019
1963 22.03 1988 27.34
1964 22.81 1989 38.48
1965 20.88 1990 36.02
1966 20.88 1991 32.23
1967 16.22 1992 28.63
1968 17.59 1993 38.99
1969 16.90 1994 37.49
1970 12.10 1995 60.21
1971 10.38 1996 35.53
1972 9.84 1997 30.86
1973 14.89 1998 32.69
1974 19.02 1999 37.00
1975 14.25 2000 43.63
1976 17.25 2001 36.51
1977 17.25 2002 34.58
1978 22.81 2003 28.20
1979 16.22 2004 41.80
7011 RIVER KELLS BLACKWATER@ O'DALYS BRIDGE
Pre-Drainage Post-Drainage
BO
YN
E C
AT
CH
ME
NT
Drainage Works: 80- 83
7011 RIVER KELLS BLACKWATER@ O'DALYS BRIDGE
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1 A(km2)= 2408.00 N= 65
Year AMF(m3/s) Year AMF(m
3/s) Year AMF(m
3/s)
1940 160.70 1987 255.198 1969 130.727
1941 129.25 1988 120.474 1970 133.704
1942 124.84 1989 371.717 1971 110.485
1943 100.77 1990 227.490 1972 75.851
1944 191.40 1991 265.857 1973 96.690
1945 252.35 1992 363.83 1974 185.28
1946 260.93 1993 258.06 1975 96.69
1947 266.73 1994 361.45 1976 131.47
1948 151.80 1995 290.57 1977 141.24
1949 133.70 1996 160.70 1978 344.65
1950 133.70 1997 198.87 1979 326.65
1951 151.80 1998 302.88 1980 250.94
1952 96.69 1999 222.14 1981 205.20
1953 139.72 2000 425.25 1982 299.78
1954 455.28 2001 275.55 1983 248.12
1955 117.59 2002 382.13 1984 293.62
1956 139.72 2003 188.94 1985 281.51
1957 165.24 2004 336.41 1986 193.87
1958 94.00
1959 149.61
1960 186.50
1961 103.52
1962 121.92
1963 120.47
1964 191.40
1965 275.55
1966 139.72
1967 196.36
1968 238.38
7012 RIVER BOYNE @ SLANE
Pre-Drainage Post-Drainage
BO
YN
E C
AT
CH
ME
NT
Drainage years
Drainage works: 69-86
7012 RIVER BOYNE @ SLANE
0
50
100
150
200
250
300
350
400
450
500
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
Drainage years
A1 A(km2)= 646.00 N= 59
Year AMF(m3/s) Year AMF(m
3/s)
1946 246.13 1960 407.236
1947 439.45 1961 330.531
1948 517.87 1962 368.187
1949 420.55 1963 241.700
1950 340.43 1964 330.531
1951 594.62 1965 428.62
1952 383.64 1966 330.53
1953 340.43 1967 368.19
1954 352.96 1968 428.62
1955 243.91 1969 325.62
1956 360.54 1970 180.70
1957 386.24 1971 271.00
1958 284.91 1972 286.08
1959 275.61 1973 765.42
1974 353.59
1975 353.59
1976 240.49
1977 356.97
1978 323.95
1979 381.10
1980 762.26
1981 320.74
1982 454.68
1983 428.14
1984 323.95
1985 767.34
1986 360.36
1987 343.55
1988 447.01
1989 502.16
1990 356.97
1991 330.41
1992 292.63
1993 370.65
1994 600.20
1995 320.74
1996 381.10
1997 424.42
1998 431.88
1999 454.68
2000 613.67
2001 417.03
2002 271.70
2003 420.71
2004 669.16
23002 RIVER FEALE @ LISTOWEL BRIDGE
Pre-Drainage Post-Drainage
FE
AL
E C
AT
CH
ME
NT
Drainage works: 51-59
23002 RIVER FEALE @ LISTOWEL BRIDGE
0
100
200
300
400
500
600
700
800
900
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A2 A(km2)= 774.00 N= 51
Year AMF(m3/s) Year AMF(m
3/s)
1953 86.11 1976 66.422
1954 87.20 1977 61.830
1955 73.60 1978 109.321
1956 102.92 1979 114.590
1957 72.52 1980 140.821
1958 72.23 1981 105.00
1959 101.66 1982 176.15
1960 101.16 1983 192.46
1961 66.13 1984 121.30
1962 70.52 1985 190.86
1963 79.41 1986 173.05
1964 103.09 1987 178.22
1965 95.07 1988 213.71
1966 82.12 1989 135.08
1967 66.33 1990 91.13
1968 134.54 1991 89.16
1969 61.06 1992 88.19
1970 67.16 1993 106.35
1971 79.71 1994 127.82
1972 79.63 1995 106.35
1973 133.12 1996 121.24
1974 81.97 1997 107.39
1975 105.86 1998 129.48
1999 89.16
2000 118.53
2001 91.13
2002 81.43
2003 78.60
24001 RIVER MAIGUE @ CROOM
Pre-Drainage Post-Drainage
MA
IGU
E C
AT
CH
ME
NT
Drainage Works: 75- 76
24001 RIVER MAIGUE @ CROOM
0
50
100
150
200
250
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1 A(km2)= 426.00 N= 46
Year AMF(m3/s) Year AMF(m
3/s)
1953 55.43 1969 98.07
1954 46.46 1970 106.08
1955 47.79 1971 109.60
1956 61.32 1972 90.31
1957 31.00 1973 145.29
1958 39.75 1974 97.51
1959 44.49 1975 99.76
1960 85.81 1976 74.60
1961 36.42 1977 101.47
1962 32.11 1978 110.78
1979 102.04
1980 133.57
1981 83.88
1982 110.19
1983 113.76
1984 80.73
1985 113.16
1986 91.41
1987 110.78
1988 130.39
1989 120.42
1990 101.47
1991 97.51
1992 79.18
1993 122.27
1994 130.07
1995 119.81
1996 116.77
1997 109.30
1998 137.43
1999 118.59
2000 122.88
2001 106.67
2002 92.50
2003 109.60
2004 111.37
24013 RIVER DEEL @ RATHKEALE
Pre-Drainage Post-Drainage
Drainage Works: 1963-1968D
EE
L C
AT
CH
ME
NT
24013 RIVER DEEL @ RATHKEALE
0
20
40
60
80
100
120
140
160
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1 A(km2)= 520.00 N= 48
Year AMF(m3/s) Year AMF(m
3/s)
1957 18.69 1991 49.572
1958 20.50 1992 44.304
1959 30.73 1993 41.778
1960 22.38 1994 50.478
1961 26.40 1995 43.032
1962 17.82 1996 46.90
1963 27.45 1997 48.23
1964 42.06 1998 49.12
1965 30.73 1999 61.47
1966 24.35 2000 46.46
1967 29.61 2001 62.48
1968 44.71 2002 47.12
1969 26.40 2003 47.12
1970 24.35 2004 59.73
1971 20.50
1972 29.18
1973 34.26
1974 47.78
1975 30.23
1976 26.45
1977 38.92
1978 31.67
1979 40.95
1980 40.54
1981 35.01
1982 36.94
1983 43.45
1984 35.78
1985 34.26
1986 42.19
1987 45.59
1988 35.39
1989 66.58
1990 53.71
26012 RIVER BOYLE@ TINACARRA HOUSE
Pre-Drainage Post-Drainage
BO
YL
E C
AT
CH
ME
NT
Drainage Works: 82-91
26012 RIVER BOYLE@ TINACARRA HOUSE
0
10
20
30
40
50
60
70
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A2+A1 A(km2)= 127.00 N= 48
Year AMF(m3/s) Year AMF(m
3/s)
1952 27.40 1972 18.940
1953 30.72 1973 18.752
1954 30.58 1974 19.328
1955 25.56 1975 20.486
1956 28.69 1976 21.396
1957 30.43 1977 21.84
1958 22.13 1978 20.93
1959 27.97 1979 21.17
1960 29.41 1980 21.44
1961 30.14 1981 16.55
1962 27.26 1982 19.73
1963 27.83 1983 22.34
1964 29.12 1984 19.26
1965 26.69 1985 21.45
1966 26.12 1986 23.27
1967 23.76 1987 24.00
1968 30.72 1988 22.47
1969 26.55 1989 18.83
1990 21.49
1991 18.20
1992 18.84
1993 19.97
1994 20.73
1995 20.61
1996 23.98
1997 22.81
1998 26.47
1999 24.65
2000 22.53
2001 20.09
30001 RIVER AILLE @ CARTONBOWER
Pre-Drainage Post-Drainage
CO
RR
IB C
AT
CH
ME
NT
Drainage works: 70-71
30001 RIVER AILLE @ CARTONBOWER
0
5
10
15
20
25
30
35
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1 A(km2)= 695.00 N= 35
Year AMF(m3/s) Year AMF(m
3/s)
1951 48.83 1974 104.962
1952 29.46 1975 85.535
1953 42.30 1976 65.324
1954 76.94 1977 92.148
1955 36.75 1978 78.194
1956 60.25 1979 N/A
1957 36.47 1980 113.37
1981 67.99
1982 92.15
1983 86.04
1984 86.54
1985 95.28
1986 N/A
1987 84.04
1988 86.04
1989 123.27
1990 98.46
1991 103.86
1992 99.53
1993 85.54
1994 128.06
1995 103.32
1996 84.54
1997 93.19
1998 82.56
1999 131.09
2000 87.55
2001 99.53
2002 74.41
2003 95.28
30004 RIVER CLARE @ COROFIN
Pre-Drainage Post-Drainage
CO
RR
IB C
AT
CH
ME
NT
Drainage works: 58-64
30004 RIVER CLARE @ COROFIN
0
20
40
60
80
100
120
140
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
A1 A(km2)= 250.00 N= 45
Year AMF(m3/s) Year AMF(m
3/s)
1953 31.34 1979 33.475
1954 54.30 1980 40.588
1955 27.21 1981 28.240
1956 26.37 1982 40.473
1957 42.96 1983 36.090
1958 18.37 1984 42.55
1959 45.64 1985 35.32
1960 44.09 1986 27.43
1961 N/A 1987 44.31
1962 31.04 1988 17.29
1963 18.42 1989 53.44
1964 36.52 1990 34.34
1965 74.02 1991 40.59
1966 35.85 1992 59.83
1967 33.87 1993 35.43
1968 49.23 1994 54.70
1969 23.44 1995 25.05
1970 24.98 1996 21.33
1971 21.19 1997 28.24
1972 15.95 1998 28.75
1999 28.55
2000 44.90
2001 33.80
2002 49.23
2003 35.98
2004 44.66
30005 RIVER ROBE @ FOXHILL
Pre-Drainage Post-Drainage
CO
RR
IB C
AT
CH
ME
NT
Drainage works: 73-78
30005 RIVER ROBE @ FOXHILL
0
10
20
30
40
50
60
70
80
-2 -1 0 1 2 3 4 5EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage
B A(km2)= 294.00 N= 36
Year AMF(m3/s) Year AMF(m
3/s)
1966 105.43 1987 188.01
1967 81.73 1988 121.38
1968 126.40 1989 151.37
1969 123.91 1990 149.40
1970 81.03 1991 162.46
1971 107.77 1992 149.40
1972 69.46 1993 122.27
1973 109.35 1994 137.84
1974 86.71 1995 136.90
1975 46.80 1996 103.51
1976 50.23 1997 123.16
1977 102.34 1998 139.73
1978 83.85 1999 180.36
1979 92.54 2000 103.51
1980 72.79 2001 132.23
1981 78.24
1982 98.52
1983 93.65
1984 147.51
1985 159.39
1986 157.37
35011 RIVER BONET @ DROMAHAIR
Pre-Drainage Post-Drainage
CO
RR
IB C
AT
CH
ME
NT
Drainage works: 77-86
35011 RIVER BONET @ DROMAHAIR
0
20
40
60
80
100
120
140
160
180
200
-2 -1 0 1 2 3 4EV1 y
AM
F(m
3/s
)
Pre-Drainage
Post-Drainage