IMPACTOF HETEROGENEOUS LAND SURFACEON MODELS AND ITS PRELIMINARY PARAMETERIZATION

To improve the parameterization of land surface processes, a preliminary analysis of the impact of subgrid land surface heterogeneity on model results is carried out. The scheme of land surface process parameterization is presented by using an averaging method. The impact of heterogeneity is discussed. Numerical results show that the heterogeneity could lead a discrepancy between model results and reality, and the averaging method can be applied to the heterogeneous land surface