| 对LASG-REM模式的改进及云雨数值试验 |
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| 引用本文： | 李书严,肖稳安,雷恒池.对LASG-REM模式的改进及云雨数值试验[J].南京气象学院学报,2004,27(6):768-775. |
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| 作者姓名： | 李书严 肖稳安 雷恒池 |
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| 作者单位： | 1. 南京信息工程大学,电子工程系,江苏,南京,210044
2. 中国科学院,大气物理研究所,北京,100029 |
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| 基金项目： | 青海省人工影响天气办公室"黄河上游人工增雨技术研究"课题资助 |
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| 摘 要： | 改进中尺度动力预报模式中较为简单的云雨过程处理方案,用预报方程对大尺度(即网格尺度)的水汽、云水和雨水作显式求解,对次网格尺度的积云对流进行参数化处理,并以1998年7月21日00时(UTC)的欧亚探空资料和地面资料为初始场,对武汉地区的暴雨过程进行数值试验。结果表明,改进后的LASG—REM模式对降水有很好的模拟能力,能够模拟出空中云水、雨水的分布特征。
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| 关 键 词： | LASG—REM模式 云水 雨水 显式求解 数值试验 |
| 文章编号： | 1000-2022(2004)06-0768-08 |
Numerical Simulation of Cloud Water and Rainwater with LASG-REM Model |
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| LI Shu-yan,XIAO Wen-an,LEI Heng-chi.Numerical Simulation of Cloud Water and Rainwater with LASG-REM Model[J].Journal of Nanjing Institute of Meteorology,2004,27(6):768-775. |
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| Authors: | LI Shu-yan XIAO Wen-an LEI Heng-chi |
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| Institution: | LI Shu-yan~1,XIAO Wen-an~1,LEI Heng-chi~2 |
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| Abstract: | The main purpose of this paper is to improve the warm rain process in the LASG-REM(State Key Laboratory of Numerical Model for Atmospheric Sciences and Geophysical-Regional ETA Model),via adding the explicit prediction of water vapor,cloud water and rainwater for mesh resolvable systems and the parameterization scheme for subgrid cumulus convective systems.The sounding data of Eurasian as well as the surface data at 0000Z 21st July 1998 are used as the initial fields in the simulation.Results show that the improved LASG-REM model is able not only to forecast rainfall of Wuhan area,but also to predict the temporal and spatial distribution of cloud water and rainwater successfully. |
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| Keywords: | LASG-REM model cloud water rainwater explicit solution numerical experiment |
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