Post on 17-Jan-2018
description
Marine Surface and Climate Data Gaps
in the archives at the National Center for Atmospheric
Researchfor
15th U.S. – China Marine and Fishery Science and Technology Joint Working
Meeting
Steven Worley, NCAR5 March, 2002
Outline
• Previous exchanges and co-operations with the U.S. COADS project
• Status of Chinese data in the major archives at NCAR
• Future exchanges
Previous Exchanges and Co-operations
• From China to U.S.– Digitized, U.S. Maury ship logbooks
• Data for ~1800-1863, 1.3 x 106
Observations• Now in COADS• Minor details
– Finished about 1996– Organizations SOA/NMDIS/CNODC and
NOAA/NESDIS/NCDC– Responsible persons Guo Fengyi and Joe Elms
U.S. Maury Collection Digitized by China
1.3 M Reports, ~1800 -1863
Previous Exchanges and Co-operations
• From China to U.S.– Digitized, U.S. Marine Meteorological
Journals• Data for 1878-1894, 1.8 x 106 Observations• Data to be included in COADS • Minor Details
– Work began in 1998– Organizations SOA/NMDIS/CNODC and
NOAA/NESDIS/NCDC + NCAR– Responsible persons Mr. Guo Fengyi, Joe Elms
and Steven Worley
MMJ, 1878-1894, 1.8M reports
Previous Exchanges and Co-operations
• From U.S. to China– Global land surface archive
• Data for 1967-1998, complete GTS archive• Minor Details
– Delivered 1997, observations 1967-1997, to Mr. Guo Fengyi
– Delivered 1999, obs. extension 1998, to Mr. Guo Fengyi
– Responsible person, Steven Worley
Previous Exchanges and Co-operations
• From U.S. to China– COADS
• Data for ~1800-1997– 155 x 106 Observations, and Monthly Statistics– Delivered June 2001
• Minor Details– Early deliveries, 1985, 1994, 1997, and 2000– Generally to Mr. Guo Fengyi– Responsible persons, Steven Worley and Joe
Elms
Current Status in major NCAR Archives
• What data of Chinese origin are in the marine surface archives?
• What is in COADS?– Difficult to assess
• Ships are not located within political boundaries
• China did not participate in the WMO Resolution 35 – keyed logbook data to GCC’s
– Chinese vessels may report over the GTS• Hong Kong is a Res. 35 participant, use as
example (an under estimate of what is available)
0
5
10
15
20
25
# of
Rep
orts
(10*
*3)
1960 1963 1966 1969 1972 1975 1978 1981 1984 1987 1990 1993 1996
Annual Reports in COADS
Hong Kong
Reports in COADS
1960-1997• Hong Kong
Current Status in major NCAR Archives
• Future data to be added to COADS– Data from the GODAR Project CDROM
0
5
10
15
20
25
30
35
40
45
# of
Obs
. (10
**3)
1965 1968 1971 1974 1977 1980 1983 1986 1989 1992 1995
Years
GODAR Chinese Surface Obs.
GODAR Project CDROM
• Not yet in COADS
1968 – 1993
424K ReportsEvery 50th station location is plotted
Current Status in major NCAR Archives
• Future data to be added to COADS– Data sources held at NODC
• From previous Working Group exchanges• Details not available, but needed for
accurate assessment in conjunction with COADS
– E.g, WG 2000, 1954-1994 marine meteorological data, and fixed buoy data, more?
Current Status in major NCAR Archives
• Land Station Data from China– Upper Air Data– Land Surface Data
• Global climate system modeling• Global atmospheric reanalysis
computations• Global climate trend studies
0
200
400
600
800
1000
1200
1400
# of
Obs
erva
tions
(10*
*3)
1944 1947 1950 1953 1956 1959 1962 1965 1968 1971 1974 1977 1980
Years
TD13 and DS463 Observations
0100200300400500600700800900
1000#
of S
tatio
ns
1944 1947 1950 1953 1956 1959 1962 1965 1968 1971 1974 1977 1980
Years
TD13 & DS463 Stations
China Surface Observation and Stations Counts
1944-1980
China Land Surface Station Locations, 1976
Global Upper Air Stations
0
200
400
600
800
1000
1200
1400
1600
1800
2000
1949 1953 1957 1961 1965 1969 1973 1977 1981 1985 1989 1993 1997
Year
Num
ber
of S
tatio
ns
allchina
Future ExchangesProposed Project:Would China digitize more Maury data
found in Germany?– Data for ~1845-1867, ~820 Voyages, up to
1x106 records (very preliminary estimate)– Minor Details
• Logbooks moved to Germany during American Civil War?
• Professor Lin Shaohua (of NMDIS and Coordinator of JCOMM's Data Management Programme Area) has expressed interest in digitization projects
• Many details need to be worked out (Maybe a combination of MMJ and U.S. Maury strategies)
• The journal pages have been scanned as images and are (will be) available on CDROM
Release 2.0 (dark blue) vs. Release 1 (light blue) reports/yearFuture blend candidates: red (undigitized), yellow (partly), green
(fully)GODAR1968-1993, 424K
Future ExchangesData Available from the U.S./NCAR for
China• Future releases of COADS• Possible products from the NCAR
archives– http://dss.ucar.edu– SST analyses– NN Reanalysis 1948-2001– New analyzed products from COADS
Valuable data from China not in the U.S.
⇛More information like the GODAR Project CDROM if not already at NODC
⇛ Pre-1956 and 1965-1966 land surface stations
–Station histories and libraries for stations in China
⇛ River flow data for major drainages in China
⇛ Pre-1956 Upper Air stations in China
⇛ Examples of Historical Documentation
→
→
→
End
0
5
10
15
20
25
# of
Rep
orts
(10*
*3)
1960 1963 1966 1969 1972 1975 1978 1981 1984 1987 1990 1993 1996
Annual Reports in COADS
Hong Kong
0
50
100
150
200
250
300
# of
Rep
orts
(10*
*3)
1960 1963 1966 1969 1972 1975 1978 1981 1984 1987 1990 1993 1996
Annual Reports in COADS
Hong Kong Japan Malaysia
Reports in COADS
1960-1997• Hong Kong• Japan• Malaysia