春季寒潮天气过程诊断分析

利用Micaps处理客观分析、数值预报、卫星云图以及自动气象站等资料,对2001年4月8～10日发生在十堰市历史罕见的寒潮天气过程进行分析探讨,结果表明:新地岛以西高空小槽引导极地冷空气不断南侵;垂直散度场、速度场配置与产生较大降水关系密切,寒潮过程中特征反映出与暴雨过程存在类似点;云图分析显示秦岭等大地形对北方冷空气南下速度存在阻挡作用,是预报这类天气的一个关键;槽底负涡度平流、槽前疏散场的正涡度平流是其动力因素,槽前暖平流提供了热力条件。

Diagnostic Analysis of Cold Wave Weather in Spring of Shiyan City in Hubei

The objective analysis Micaps processing,numerical weather prediction,satellite images,and automatic weather stations,etc.,a analysis of the process of cold wave rare historical on 8-10 April 2001 in Shiyan City,the results show that: new earth island west of the high-altitude small groove in the guide polar cold air southward invasion;vertical divergence,configuration and have a greater velocity of precipitation is closely related to the process characteristics of cold and heavy rain reflected a similar po...