海口美兰机场一次雷雨天气的分析

Analysis of A Thunderstorm Weather Process in Meilan Airport of Haikou

利用GMS-5红外逐时Tbb资料和客观分析资料,分析2002年海口美兰机场一次雷雨天气产生的云图特征和相应大尺度环境场特征。认为该强对流天气是由中尺度对流系统造成的,该中尺度对流系统是在合适的西风槽前的大尺度环境场背景下,在有利的水汽场、涡度场、散度场中发展起来的。它单独起源于海南岛中部陆地上空,其生命史约为11小时。

An analysis is done for the cloud atlas characteristics and the corresponding largescale environmental field characteristics against the thunderstorm weather happened in Meilan Airport of Haikon in 2002 by using the GMS5 infrared hourby hour TBB information and the object analysis information. The results indicates that the mediumscale convection system, which develops on the foundation of favorable vapor field, eddy field and divergence field, under the background of suitable largescale environmental field in front of the westerly trough, is the cause of this strong convection weather. It starts separately from above the central land of Hainan island with a lifetime of about 11 hours.