WRF模式中的微物理过程及其预报对比试验  

Description of Microphysical Processes in WRF Model and Its Prediction Experiment

作　　者：闫之辉 邓莲堂 

机构地区：[1]国家气象中心,北京100081

出　　处：《沙漠与绿洲气象》2007年第6期1-6,共6页Desert and Oasis Meteorology

基　　金：国家科技攻关计划<奥运气象保障技术研究>课题(2002BA904B05)资助

摘　　要：WRF(Weather Research Forecast)模式系统是由许多美国研究部门及大学的科学家共同参与进行开发研究的新一代中尺度同化预报系统。本文主要对公开发布的WRF模式V2.0版本中使用的微物理过程方案进行简单介绍,并在国家气象中心建立的与T213中期预报模式相嵌套的预报系统的基础上,对不同微物理过程方案进行了降水预报对比试验和检验,对各方案的降水预报性能进行初步评估。试验结果表明,总体预报效果LIN方案较好,而对流参数化方案从降水落区预报和对流降水对总降水的贡献两方面看则是KF和NKF方案的预报效果较好。The Weather Research and Forecast （WRF） project as an advanced meso-scale data assimilation and forecast system is developed jointly by a lot of scientists of research institute and university. In this paper, the microphysical process schemes used in WRF model （in version 2.0） which had been published was described simply, based on the WRF model system which nested with T213 medium-range forecast model, the precipitation forecast between different schemes was experimented contrastively and verified, and a preliminary evaluation was presented with regard to each schemes. Experimentation showed that LIN scheme in microphysics and KF and NKF scheme in cumulus convections were better than others.

关 键 词：WRF模式系统 中尺度同化预报系统 微物理过程 水相物质 

分 类 号：P456[天文地球—大气科学及气象学]