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[B-11.1 Prediction of Hydrological Cycle Change in a River Catchment Scale by the Coupling of Meteorological and Hydrological Models]

[Contact Person]

Akira Terekawa, Masakazu Fujikane
Hydrology Division, Public Works Research Institute, Ministry of Construction
1-Asahi, Tsukuba, Ibaraki 305 Japan
Phone +81-298-64-2211 (Ext. 465), Fax +81-298-64-1168
E-mail TSU00830@JPNJRDC

[Total Budget for FY1990-1992]

20,368,000 Yen

[Abstract]

　Purpose of the study is to predict hydrological cycle changes due to greenhouse-induced climate change. The prediction is, however, for more uncertain than prediction of climate change, because any climate models do not yield regional climate changes such as precipitation and evapotranspiration changes over a river catchment in the interest of rough resolution of the climate models. The best method to solve the problem is the utilization of hydrologic model with mesoscale atmospheric model. We were developing the coupling models can describe interrelationship between the land surface and the atmosphere, e.g., regional precipitation and evapotranspiration. We could get the good estimation from this latest model about winter simulation.

[Key Words]

Hydrological cycle, Meteorological model, Catchment scale, Prediction of precipitation. Land surface process