南京大学学报:自然科学版2011,Vol.47Issue(5):614-626,13.
2008年6月我国南方持续暴雨过程中尺度对流系统特征分析
Mesoscale convective systems during the continuous heavy rainfall in southern China in June,2008
摘要
Abstract
With the temperature of brightness blackbody(TBB) data from Geostationary Operational Environmental Satellites(GOES),the mesoscale convective systems(MCSs) from 5 to 19 June are analyzed statistically.The MCSs are defined by where the TBB values are ≤-52℃ and the diameters of cold clouds are 200km.It is found that MCSs are much easier to generate and longer live in southern provinces than in the Jiangsu and Anhui basin areas.The convective clouds moved eastward periodically with a 3~5 day cycle,which caused four heavy rainfall processes in southern China from 1 to 20 in June.Analysis on typical rainfall events occurred in Yangchun and Enping reveals that extremely heavy rainfall could first occur in a local area when the MCSs started,and then the precipitation increased when these MCSs were intensified.关键词
暴雨/中尺度对流系统/华南Key words
heavy rainfall/mesoscale convective system/southern China分类
天文与地球科学引用本文复制引用
刘韻蕊,张熠..2008年6月我国南方持续暴雨过程中尺度对流系统特征分析[J].南京大学学报:自然科学版,2011,47(5):614-626,13.基金项目
国家自然科学基金 ()
国家公益性行业气象科研专项 ()
中国气象科学研究院灾害天气国家重点实验室开放课题 ()