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2010年12月15日江西雨雪天气的微物理数值模拟分析
引用本文:陈兴旺,刘晓晖,罗国金,胡伟.2010年12月15日江西雨雪天气的微物理数值模拟分析[J].气象与减灾研究,2011,34(3):30-35.
作者姓名:陈兴旺  刘晓晖  罗国金  胡伟
作者单位:1. 新建县气象局,江西南昌330100;江西省大气探测技术中心,江西南昌330001
2. 江西省气象局,江西南昌,330046
3. 新建县气象局,江西南昌,330100
4. 江西省气象信息中心,江西南昌,330046
基金项目:江西省防灾减灾研究基金课题(编号:GCX200918)
摘    要:利用常规观测资料和中尺度数值模式WRF的输出产品,对2010年12月14—15日发生在江西的雨雪过程进行了分析。结果表明,微物理参数化方案输出的物理因子可以较好地揭示本次过程的雨雪转换;在雨转雪阶段,由于中低层冷空气南移较强,没有形成逆温,因此未能形成冻雨,而是由雨转为降雪天气。

关 键 词:雨转大雪  微物理方案  数值模拟  

NUMERICAL SIMULATION OF A SNOW WEATHER MICROPHYSICAL PROCESS IN JIANGXI
Chen Xingwang,Liu Xiaohui,Luo Guojin,Hu Wei.NUMERICAL SIMULATION OF A SNOW WEATHER MICROPHYSICAL PROCESS IN JIANGXI[J].Meteorology and Disaster Reduction Research,2011,34(3):30-35.
Authors:Chen Xingwang  Liu Xiaohui  Luo Guojin  Hu Wei
Institution:Chen Xingwang1,2,Liu Xiaohui3,Luo Guojin1,Hu Wei4 1.Xinjian Meteorological Bureau,Nanchang 330100,China 2.Atmospheric Detecting Technology Center of Jiangxi Province,Nanchang 330001,China 3.Jiangxi Provincial Meteorological Bureau,Nanchang 330046,China 4.Meteorological Information Center of Jiangxi Province,China
Abstract:A heavy snow process, which occurred in 14--15 December 2010 in Jiangx, has been analyzed by using conventional observation data and the outputs of WRF model. The results show that the physical factors may reasonably display the conversion of rain and snow processes. During this process no temperature inversion occurred, or temperature inversion was weak, which could not effectively form freezing rain. In addition, the intersection of cold and warm air could easily trigger collision, transformation, and development among ice crystals snow crystal and water vapor, which leaded to an increase in the latter term.
Keywords:Heavy snow  Microphysical scheme  Ice    
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