MM5模式对乌海市风资源模拟研究

Study on Wind Resources Simulation of Wuhai by MM5 model

文章以环流模式背景场NCEP/FNL资料作为初始场,采用第五代中尺度模式(MM5)与加利福尼亚气象模型(CALMET)嵌套方法,模拟采暖季和春季两个时间段各20d乌海市地面至2km各高度层的风场状况;结合两个时间段的乌海气象站、乌兰镇区域气象站、滨河区区域气象站、巴镇区域气象站及临时设立的海勃湾探空站、海南探空站、乌达探空站的观测资料,对乌海市风资源模拟结果的准确性进行了分析。结果表明:用MM5嵌套CALMET模拟乌海市风资源状况是可行的。该方法对乌海市风资源评估、近地层风场分布特征分析和环境气象研究都具有十分重要的意义。

NCEP/FNL data of Global Circulation Model background field were used as the initial field, the fifth generation mesoscale model(MM5) and California Meteorological Model(CALMET) nesting method were used to simulate each layers wind field in Wuhai from the ground to the altitude of 2 km in two periods of 20 days respectively in heating season and 20 days in spring. Combined with the observation data of four ground meteorological stations in Wuhai, Wulan town, Binhe district and Ba town, and the temporary sounding station in Haibowan, Hainan and Wuda, the accuracy of wind resource simulation results in Wuhai was analyzed. The results show that MM5 nested CALMET is feasible to simulate the wind resources in Wuhai. This method is of great significance to wind resource assessment, wind field distribution analysis and environmental meteorology research in Wuhai.