Mesoscale Numerical Study over the HEIFE Area. Part 1: Three Dimensional Wind Field

Abstract

In this study the three dimensional mesoscale model, which is based on the Peking University Mesoscale Model, was used to simulate the wind field in the HEIFE experimental region. Simulations were conducted for two separate cases, one for strong synoptic flow and the other for thermally driven local circulation in weak synoptic flow. In the former case, the channeling effect caused by topographic constraint was significant and the computed wind followed the topographic feature. In the latter case, development of the local circulation was successfully reproduced by the model. The results were compared with meteorological data obtained in HEIFE. The agreement of computed and analyzed fields were discussed.