安徽农业科学2011，Vol.39Issue(31)：19463-19467,5.
湘中一次突发性大暴雨过程分析
Analysis of an Abrupt Rainstorm Process in the Central Hunan Province
摘要
Abstract
[Objective] Hie aim is to expound the abrupt rainstorm in the central Hunan Province on May 6 in 2010. [ Method] By dint of NCEP 1 ° × 1 ° reanalysis data, routine observation data, auto-station precipitation and FY-2C satellite data, the large-scale circulation background and physical condition during the large rainstorm period from the night on May 5 to 6 in 2010 were analyzed. The large scale environment, meso-scale characteristics and potential causes for the formation of large precipitation were revealed. By ding of FY-2D satellite and water-vapor cloud image, infrared cloud image, TBB black light temperature, the variation characteristics of heavy rainstorm convection system were analyzed. Under the favorable environment background, the rainstorm was induced by the meso-scale convection system, and it had close relation with the upper-air trough, shear line in the middle and low layer, ground weak and cold air and the torrent in the upper and low latitude. The result of all kinds of physical quantities suggested that the meso-scale rainstorm above the air had distinct characteristics and the strong precipitation was in the middle Hunan Province. It was caused by meso-system. The dynamic dry belt above the satellite, TBB = -60 ℃ center and the large value area of the gradient could provide references for the forecast and pre-warning of large rainstorm. [ Conclusion] The study accumulated experiences for the forecast and report of rainstorm in Hunan Province.关键词
大暴雨/突发性/特征分析/湘中Key words
Large rainstorm/ Abruptness/ Characteristics analysis/ Central Hunan Province分类
天文与地球科学引用本文复制引用
杨令,姚蓉,刘志雄,周斌,王乐辉,张子歆..湘中一次突发性大暴雨过程分析[J].安徽农业科学,2011,39(31):19463-19467,5.基金项目
湖南省气象局重点项目“基于综合气象资料的湖南大暴雨形成机理和预报方法研究”. （）
