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(K + B 70)
* COELAION OF I / OIL
POPEIE IN E
( )
,
.
.
:
, , , , , ,
, H, , .
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I = L ( ( FA + 1 ) / ( / 100 + 0.001 ) )
=
i
i
i
tanln
Topographic Index
i = topographic index of grid cell, i
i= the upslope contributing area per unit length of contouri= topographic slope of the cell
Topographic Index raster calculator-ready
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M, E
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
0.00 0.20 0.40 0.60 0.80 1.00
/
C
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I
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D (1)
y = 3.4062x + 31.935R = 0.7918
y = 0.0185x + 27.293
R = 0.0002
y = -2.8121x + 32.027R = 0.6607
0
10
20
30
40
50
60
70
80
0 1 2 3 4 5 6 7 8 9 10 11
SOL_CBN CLAY% SILT% SAND%
TI Class
P
1:
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D (2)
y = 2.3968x + 52.549R = 0.6995
y = -1.4173x + 29.86R = 0.676 y = -0.7415x + 13.413
R = 0.5112
0
10
20
30
40
50
60
70
80
90
0 1 2 3 4 5 6 7 8 9 10 11
SOL_CBN CLAY% SILT% SAND%
TI Class
P
2:
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A
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A A
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SW_END [mm]
93 - 163
163 - 242
242 - 277
277 - 298
298 - 317
SW_END [mm]
65 - 99
99 -139
139 - 196
196 - 245
245 - 304
SWAT
Soil Water (mm)
SWAT-VSA
Soil Water (mm)
93-163
163-242
242-277277-298
298-317
93-163
163-242
242-277277-298
298-317
a b
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swat_hrus
SURQ [mm]
1.978 - 4.014
4.014 - 4.440
4.440 - 4.783
4.783 - 5.214
5.214 - 5.75
swat_vsa_hrus
SURQ [mm]
0 - 0.939
0.939 - 2.201
2.201 - 4.532
4.532- 8.868
8.868- 10.213
SWAT-VSA
Runoff (mm)
SWAT
Runoff (mm)
0-0.93
0.93-2.20
2.20-4.534.53-8.86
8.86-10.21
0.66-0.93
0.93-2.20
2.20-4.534.53-8.86
8.86-10.21
a b
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B
A
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G A
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G A I
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P A I
0
100
200
300
400
500
600
1/1/1998 1/1/1999 1/1/2000 12/31/2000 1/1/2002 1/1/2003 1/1/2004 12/31/2004 1/1/2006
Gilgel Abay Catchment Flow (m3/s) near Merawi Station
GilgelAbay_Swat GilgelAbay_SwatVSA GilgelAbay_Obs
Model NSESwat 0.67
SwatVSA 0.70
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A E AA A A
.
I FAO L ,
A B
C
E
B C C
I
I H
(I A, A)
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A A
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AA I
C
I
E
D8 A
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J , 2 12002
F ?
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E 500/50
7
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D8 A
16
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I
20
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, 19962004
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= (PI)2
P I+
=
P =
=
I= , .. ,
; I= 0.2
, CN,
= (1000 / CN) 10
CN 30 100;
. ,
.
A ( ) C ()
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C
A .. C A
, C A ()
(C)
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C F (CF)
A
A
A CO2 ,
F (38) ( )
A LM CMAP CPC
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G C D
CMAP 2.5 M 1979 2009 P
GPCP 2.5 M 1979 2010 P
GPCC 0.5 M 1951 2010 P
C 30 M C P
M,
MM 0.25 3, D 1957 2002 P
1, 2 2.5 6, D 1948 2011 C
EA40 2.5 6, D 1979 2001 C
CF 0.312
(38)
H, D 1979 2010 C ,
H
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Monthly mean
Rainfall
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700
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AdetDangela
0 8 164 Kilometers
0
100
200
300
400
500
600
700
800
J
M
J
M
J
M
J
M
J
M
J
M
J
M
J
M
J
M
J
M
/
A C : 19972006 CF N
= 0.5689 + 21.378
= 0.876
0
100
200
300
400
500
600
0 100 200 300 400 500 600 700
C
CFN C:
D = 0.47
M = 0.94
MET station STN
STN Thiessen Polygons
CFSR Thiessen Polygons
TI ValueHigh : 23.8535
Low : 4.16128
Enfraz
500
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Enfraz
Debre_Tabor
Addis_Zemen
0 10 205 Kilometers
MET station STN
STN Thiessen Polygons
CFSR Thiessen Polygons
TI ValueHigh : 23.8535
Low : 4.16128
High : 23.5086
Low : 4.17124
CFN C:
D = 0.54
M = 0.89
0
100
200
300
400
500
600
J
M
J
M
J
M
J
M
J
M
J
M
J
M
J
M
J
M
J
M
/
C : 19972006 CF
= 3.1905 + 32.869 = 0.7859
0
50
100
150
200
250
300
350
400
450
0 100 200 300 400 500
C
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() ()
CA C.
C: 2, 4, 8, 12 /
: 4, 2, 1, 0.5, 0.5, 1, 2, 4 /
G (GM)
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.
: 0.5, 1, 2, 3, 4,
5, 6 /
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://216.172.171.238//
/A01.?=12&=37&.=
CF :
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N P
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