Goddard Space Flight Center
Greenbelt, MD 20771, USA
[After Oct. 1997]
Institute of Industrial Science,
University of Tokyo
7-22-1 Roppongi, Minato-ku, Tokyo 106, JAPAN
Phone: +81 3 3402 6231 ext.2528, FAX: +81 3 3402 2597
Following is a brief summary of the data plan for
the implementation plan about details.
As a part of GEWEX
the objective of GAME-Tropics
is the quantitative monitoring of vapor flux,
radiative flux, and their seasonal, intra-seasonal, and interannual
variation in the south-east Asia.
In order to accomplish these objectives, various field observations
and data collections are planned and some of them has been implemented.
A brief summary of them is presented below.
Even though the target area of
largely covers the warm humid region in the south-east Asia,
here we have particularly focused on the activity in Thailand.
Locations of the observing stations in GAME-T.
PostScript file and PDF file are available.
There are mainly 6 data sources relevant to
The locations of these observing stations are illustrated in
The time schedule of these observations are summarized in
- Routing rawinsonde observation in the target area is once daily only.
In order to obtain better atmospheric data for the four dimensional
data assimilation, the rawinsonde observation will be enhanced up to
4 times daily during the Intensive Observation Period (IOP).
Two periods of IOP are planned under
The observed data will be on the communication line of the
System (GTS) in real time.
- Middle of Apr. through middle of Jun., 1998
- Middle of Aug. through middle of Sep., 1998
- Surface flux will be measured at a few stations; monsoon forest,
paddy field, and shrubbery forest in Thailand, tropical rain forest
in Malay Peninsula and Borneo Island, and forest and grass land in
Energy and water budget will be continuously observed at these stations.
During the IOP, detailed observations,
such as stomata resistance measurement
and sensible heat flux measurement by sonic anemometer thermometer,
will be done.
- More than 10 weather radars are being operated by
Thai Meteorological Department (TMD).
A new system to produce digital composite images from these radars
is under development and should be completed within 1997.
BRRAA (Bureau of the Royal Rainmaking and Agricultural Aviation)
is also operating a latest weather radar at Om Koi during rainy season.
- Routing observation data of surface meteorology will be collected
mainly from TMD.
They have more than 80 stations within Thailand, and daily values
of rainfall, humidity, wind, temperature etc. are archived.
Daily rainfall is contributed from Royal Irrigation Department (RID)
and Electric Generation Authority of Thailand (EGAT), as well.
These two agencies are also measuring river discharge.
Hourly precipitation data is observed by BRRAA.
Precise radiometers and a spectrometer have been installed at Si Samrong
agrometeorological station in June, 1997.
Soil temperature is measured at 0, 5, 10, 20, 50, 100 cm depth
by 3 hourly intervals at more than 30 agrometeorological stations of
Land Development Department (LDD) started a study on drought
prediction, and they will observe soil moisture
at 50 stations by 5 day intervals.
- Various satellite data will be used in
GMS/SVISSR data is received and archived at IIS, Univ. of Tokyo,
and used for studies of cloud, radiation, and rainfall.
Synthetic Aperture Radar (SAR) data from
J-ERS1 and RADARSAT will
be used for the detection of water surface in the area and the
monitoring of surface soil wetness.
Vegetation and landscapes are monitored by NOAA/AVHRR
received and archived at Asian Institute
of Technology (AIT).
Precipitation data from Tropical Rainfall Measuring Mission
will be extensively validated and utilized.
- Published maps of topography, geology, land cover, and land use
will be digitized and prepared for modelling study and the validation
of the satellite estimates. Horizontal resolution will be less than 1 km.
Observational Plans of GAME-T.
PostScript file and PDF file is available.
Data will be primarily archived at IIS, Univ. of Tokyo,
one of the
GAME Archive Information Network (GAIN) nodes.
There will be other distributed active archive centers as well.
The data will be opened within the
community after quality checks.
They will be prepared for sharing among
community within a year, and they will be opened
for the rest of the research community within 2 years after the project.
Inquire abbreviations and acronyms