| 对区域数值模式(REM)的改进及数值试验 |
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| 引用本文： | 周祖刚,张维桓,林乃实,孙明生.对区域数值模式(REM)的改进及数值试验[J].热带气象学报,1999,15(2):146-153. |
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| 作者姓名： | 周祖刚 张维桓 林乃实 孙明生 |
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| 作者单位： | [1]南京空军气象学院 [2]北京空军气象中心 |
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| 基金项目： | 国家自然科学基金49745007号;空司基础理论课题 |
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| 摘 要： | 针对中尺度对形对我国天气影响的重要性，对ＲＥＭ先后进行水平，垂直分辨率的提高，并运用常规报文资料获得初始场，运用包络地形方法获得模式所需的地形资料，对１９９４年７月１２－１３日的大暴雨个例进行了数值试验，结果表明，仅提高ＲＥＭ的水平分辨率，对降水预报有一定的改进和提高，但多报出了几个大暴雨中心。
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| 关 键 词： | η坐标 模式分辨率 包络地形 数值试验 大气 |
AN IMPROVEMENT ON REGIONAL ETA-COORDINATE MODEL(REM) AND NUMERICAL EXPERIMENT |
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| Zhou Zugang,Zhang Weihuan,Lin Naishi and Sun Mingsheng.AN IMPROVEMENT ON REGIONAL ETA-COORDINATE MODEL(REM) AND NUMERICAL EXPERIMENT[J].Journal of Tropical Meteorology,1999,15(2):146-153. |
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| Authors: | Zhou Zugang Zhang Weihuan Lin Naishi and Sun Mingsheng |
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| Institution: | The metcorology institute of Air Foroe, Nanjing, 211101;The metcorology institute of Air Foroe, Nanjing, 211101;The metcorology institute of Air Foroe, Nanjing, 211101;The meteorological center of the Northern Air Force |
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| Abstract: | In order to Study the important influence of the meso-scale topography on Chinese weather,the horizontal and vertical resolutions of REM are increased, and the higher resolution model is used to simulate the heavy raim case of July 12th-13th, 1994, using the routine data to get initial field and model topography by the envelope method. Comparing the results of A, B and C models with obsercvation,it is found that the precipitation and circulation pettern forecast by C model has been improved more than that of A and B models. It is found that meso-scale topography is an important indicator for heavy rain forecast. |
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| Keywords: | Eta-coordinate Model resolution Envelope topography Numerical experiments |
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