安徽农业科学2011，Vol.39Issue(34)：21307-21310,4.
北部湾海风锋暴雨过程及合成分析
Sea Breeze Front Storm and Its Composite Analysis in Beibu Guff
摘要
Abstract
[Objective] The aim was to study the sea breeze front storm and its composite analysis in Beibu Gulf. [ Method] By dint of routine observation data, ground automatic meteorology data and European numerical mode grid data, rainstorm caused by Guangxi sea breeze during 1990 and 2007 and the strong convection triggered by sea breeze on June 5 in 2008 were expounded. The main characteristics of the configuration of circulation in the low and high latitude of breeze front of middle scale were summarized. [ Result] Sea breeze front storm system was an important middle scale sea breeze front system that triggered storm in the Beibu Gulf. Sea breeze in Beibu Gulf occurred most easily during the southwest monsoon eruption period. Case study pointed out that after sunrise, the continental and island temperature in Beibu Gulf turned from warm-ocean-cold-island into warm-island-cold-ocean. The southerly airstream of high temperature and high humidity met with the relatively low temperature and dry northerly airstream in Beibu Gulf, and triggered vertical circulation and stimulated ground middle scale sea breeze front system. Composite analysis referred to the circulation characteristics of the ocean and continental temperature in Beibu Gulf. Tke upper air of south China was in strong divergence center. The air pressure was high in the east and low in the west. Beibu Gulf was in the southerly torrent belt in front of the trough and after the latitude in cyclonic circulation convergence area. The strata unstable structure of the divergence in the upper air and the convergence in the lower layer and the " pumping effect" provided upward dynamics for the ocean circulation development. The southerly brought rich water vapor to the Beibu Gulf, which was conductive to the formation of strong convective cloud system in the lower layer and the generation of precipitation. [ Conclusion] The study provided reference for the study of the characteristics of middle scale convective system.关键词
北部湾/海风锋/暴雨过程/特征/合成分析Key words
Beibu Gulf/ Sea breeze front/ Rainstorm/ Characteristics/ Composite analysis分类
天文与地球科学引用本文复制引用
卢伟萍,梁维亮,李江南,林振敏,林墨,李菁..北部湾海风锋暴雨过程及合成分析[J].安徽农业科学,2011,39(34):21307-21310,4.基金项目
2010年度国家自然基金(40965003) （40965003）
2007年度广西科技攻关项目(桂科攻0719005-3-2). （桂科攻0719005-3-2）
