境界層過程の数値シミュレーション(I)

Abstract

A numerical model is devised to simulate the boundary layer processes over an arid land, with an attention focused to the water evaporation which mainly occurs not at the groundsurface but under the ground. A numerical result shows that the water evaporation takesplace not only near the ground surface but also at a deeper region where the diurnal variationis scarcely observed. A dataset is also made for tuning the numerical model from anobservational data over a bare land on a summer day. The optimization of the numericalmodel is left for future work as well as the examination of the parameter sensitivity of thenumerical result.