0103号台风"榴莲"强度变化特征及暴雨成因的分析

应用天气图、探空资料、台风年鉴,逐小时降水和TBB资料,对0103号台风登陆后强度的变化和暴雨过程进行了分析,发现0103号台风暴雨过程是由两次中尺度暴雨过程构成的,分别发生于迅速减弱和持续阶段.通过对200 hPa西风槽的发展,低空急流和热带对流云图以及台风登陆前后台风和暴雨区热力、动力场特征的分析,取得一些初步的结果,这些结果将对今后进一步的研究和预报有一定的帮助.

VARIATIONS OF TYPHOON DURIAN (0103) INTENSITY AND ANALYSIS OF HEAVY RAIN CAUSES

Applying weather maps, sounding data, typhoon yearly books, hourly precipitation and TBB data, the work studies the intensity change in Durian and an associated heavy rain process. It is found that the process was made up of two mesoscale heavy rains, relatively in their rapidly weakening and maintaining stages. Studying the development of the 200-hPa westerly trough, low-level jet, cloud imagery of tropical convection, and thermodynamic and dynamic fields of typhoon and heavy rain around the landfall, some preliminary results have been achieved, which will be of some help for the research and forecast in the future.