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2008年初湖北省低温雨雪冰冻天气温度平流配置分析
引用本文:龙利民,黄治勇,苏磊,王珊珊,邓红,韩琦.2008年初湖北省低温雨雪冰冻天气温度平流配置分析[J].南京气象学院学报,2010,33(6):745-750.
作者姓名:龙利民  黄治勇  苏磊  王珊珊  邓红  韩琦
作者单位:武汉中心气象台,湖北武汉430074
基金项目:科技部科技支撑计划项目
摘    要:利用NCEP/NCAR再分析资料,对2008年1月11日-2月1日湖北省低温雨雪冰冻过程进行温度平流空间分布诊断分析。结果表明:低温雨雪冰冻期间,湖北省近地层不断有弱冷空气补充和渗透;中层暖平流、低层冷垫和南方沿冷垫向上爬升的暖空气是湖北省降雪最基本的条件,而湖北省东部出现强降雪的另一个更重要的原因就是低层偏东回流带来的暖平流;当冷空气充斥湖北省上空整层大气时,则预示雨雪将减弱停止。

关 键 词:低温雨雪冰冻  温度平流  偏东回流

Temperature Advection Structure of Low-temperature Process with Freezing Rain and Snow in Hubei Province in 2008
LONG Li-min,HUANG Zhi-yong,SU Lei,WANG Shan-shan,DENG Hong,HAN Qi.Temperature Advection Structure of Low-temperature Process with Freezing Rain and Snow in Hubei Province in 2008[J].Journal of Nanjing Institute of Meteorology,2010,33(6):745-750.
Authors:LONG Li-min  HUANG Zhi-yong  SU Lei  WANG Shan-shan  DENG Hong  HAN Qi
Institution:( Wuhan Central Meteorological Observatory, Wuhan 430074,China)
Abstract:Based on the daily NECP/NCAR reanalysis data, the spatial distribution of temperature advection is analyzed in the process of low-temperature with freezing rain and snow from 11 January to 1 February 2008. Results show that, during the process, the weak cold air is continually supplied to the surface layer in Hubei Province. The warm advection in middle layer, the cold wedge in low layer, and the warm air from south climbing along the cold wedge are the most basic conditions, which leads to the snow process in Hubei Province. Another reason inducing the heavy snow in the east of Hubei is the warm advection caused by the eastern reflow in the low layer. When the cold air is full over Hubei Province, the rain and snow will stop.
Keywords:low-temperature with freezing rain and snow  temperature advection  eastern reflow
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