In this paper, analysis is performed of the thermodynamic and dynamic effects of the unusual topography in the experiment area of Hubei province, with the obtainment of the topographic wind circulation system in its average meaning, corresponding to the topographic scale. The regularities of its evolution and the temporal and spacial characteristics of the divergence field are thus revealed. It is found that the cony ergence field of topographic wind is related to the precipitation in the area. In the end, discussions are made of the comprehensive effects of the temporal-spaeial characteristics of the temperature-pressure anomaly field and the topography in the experiment area on the meteorological element field.