Use of Temote Measurements and Surface Observations to Improve Surface Humidy and Temperature Forecasts in Mesoscale Models

摘要

The basic intent of this research was three-fold: (1) to implement a soil hydrology model (BATS) in a mesoscale atmospheric model, specifically the Penn State Mesoscale Model, version 3 (MM5); (2) to determine the best way to arrive at a set of optimum initial soil water content values using a land surface process scheme implanted in MM5 called the Biosphere-Atmosphere- Transfer-Scheme (BATS); (3) to study a phenomenon we call decoupling' or rapid soil drying (Capehart and Carlson, 1997). Our original idea was to invert the results of the MM5/BATS package in order to determine optimum values of soil water content. The latter proved untenable.