Abstract
A simple parameterization scheme which can estimate momentum, heat, and vapor fluxes from surfaces has been proposed by Kimura. In his scheme, a complex land-use surface is classified into several simple land-use surfaces. After the three fluxes from each simple land-use surface are calculated independently, total fluxes from a grid area representated by one grid point were estimated using weighted average of fluxes from each single land-use surface. Although his scheme is valid on various kind of surfaces, for example, on the area where water surface locates adjacent to arid bare land, that isn't applicable. In this paper, this reason and modified scheme are presented. The modified parameterization scheme which includes advection term is also applicable to the complex land-use surface mentioned above.
