| Project/Area Number |
08305018
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
水工水理学
|
|---|
| Research Institution | Nagaoka University of Technology |
|---|
Principal Investigator |
KOIKE Tosio Nagaoka University of Technology, Engineering, Assoc.Professor, 工学部, 助教授 (30178173)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
LU Minjao Nagaoka University of Technology, Engineering, Assoc.Professor, 工学部, 助教授 (80240406)
MATSUYAMA Hiroshi Tokyo Metropolitan University, Science, Assoc.Researcher, 理学部, 助手 (50264586)
MASUDA Kouichi Tokyo Metropolitan University, Science, Assoc.Professor, 理学部, 助教授 (30181647)
SUMI Akemasa Center for Climate System Research, Tokyo University, Professor, 気候システム研究センター, 教授 (10179294)
|
|---|
| Project Period (FY) |
1996 – 1997
|
| Project Status |
Completed (Fiscal Year 1997)
|
| Budget Amount *help |
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1997: ¥2,500,000 (Direct Cost: ¥2,500,000)
|
|---|
| Keywords | Soil Moisture / SVATS / GCM / Satellite Remote Sensing / Snow Cover |
|---|
| Research Abstract |
In this study, we tried to produce a global soil wetness data set. Model oriented approach is based on several 1-D Soil Vegetation Atmosphere Transfer Schemes(SVATS)which are incorporated in General Circulation Models (GCMs). The ISLSCP Initiative 1 was used as unified atmospheric forcing data. An unified index was used for inter-comparison of model produced soil wetness data sets. Center for Climate Systems Research, University of Tokyo functioned as an Inter-comparison CenterICC). The major ten modeling groups in the world joined this projicts. The results of inter-comparison shows, there is quite large difference among the products. Surface wetness derived from models corresponds to satellite-based one under the condition less than saturate. Bu using the observed soil moisture data, the atmospherebasin water budget method and the short term water budget method, the model produced data sets show good correspondence qualitatively but not quantitatively.
|
