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加热和水汽对两例高原低涡影响的数值试验
引用本文:宋雯雯,李国平,唐钱奎.加热和水汽对两例高原低涡影响的数值试验[J].大气科学,2012,36(1):117-129.
作者姓名:宋雯雯  李国平  唐钱奎
作者单位:1.成都信息工程学院大气科学学院,高原大气与环境四川省重点实验室,成都 610225;中国气象科学研究院灾害天气国家重点实验室,北京 100081
基金项目:国家自然科学基金资助项目40875023,财政部、科技部公益性行业(气象)科研专项GYHY201006014,灾害天气国家重点实验室开放课题重点项目2009LASW-A01
摘    要:利用卫星黑体亮度温度(TBB)资料、NCEP 1°×1°再分析资料以及中尺度非静力平衡模式MM5,对2005年7月28~29日和2009年7月29~31日两次高原低涡过程进行了控制试验以及绝热、无地表感热、地表感热加倍、无蒸发效应、无凝结潜热、无水汽等六组敏感性试验,着重讨论了2005年7月28~29日高原低涡发生、发...

关 键 词:高原低涡  数值试验  加热  水汽  结构  影响

Numerical Simulation of the Effect of Heating and Water Vapor on Two Cases of Plateau Vortex
SONG Wenwen,LI Guoping and TANG Qiankui.Numerical Simulation of the Effect of Heating and Water Vapor on Two Cases of Plateau Vortex[J].Chinese Journal of Atmospheric Sciences,2012,36(1):117-129.
Authors:SONG Wenwen  LI Guoping and TANG Qiankui
Affiliation:1.College of Atmospheric Sciences and Key Laboratory of Plateau Atmosphere & Environment of Sichuan Province, Chengdu University of Information Technology, Chengdu 610225;State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences,2.Chengdu Meteorological Bureau,Chengdu 610071
Abstract:By using the satellite Temperature of Brightness Blackbody(TBB) data,NCEP 1°×1° reanalysis data,and nonhydrostatic mesoscale numerical model MM5,control experiment and six sensitivity experiments which are adiabatic,no surface sensible heating,double surface sensible heating,no evaporation effect,no latent heat of condensation,and no water vapor,are performed for two cases of plateau vortex occurring during 28-29 July 2005 and 29-31 July 2009,and the happening,development,and structure change of the plateau vortex during 28-29 July 2005 are mainly discussed.The results show that the vortex center and the vortex structure at 500 hPa simulated in the control experiment are the same as actuality.The adiabatic conditions affect the formation,development and structure change of the vortex most remarkably.The latent heat of condensation and the water vapor do not play decisive roles in formation of the vortex,but play key roles in vortex maintenance and structure characteristics evolvement.Surface latent heat has some effect on the development of the vortex,and no surface latent heat slightly decreases the strength of the vortex.The effect of surface sensible heat on the vortex is different for different cases,and depends on the developing stage of the vortex,and also that the developing stage is daytime or night.
Keywords:plateau vortex  numerical simulation  heating  water vapor  structure characteristics  effect
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