【摘要】 利用NCEP 2.5°×2.5°风场每6h再分析资料和常规观测资料,分析了近40a(1970.7～2009.9)35次影响桂东南的东风波天气过程。通过降雨强度、雨区分布及系统结构的统计分析,对东风波进行了归类。基于典型东风波过程,运用合成分析方法建立了各类东风波天气概念模型,结合本地预报经验提出了桂东南东风波的预报着眼点。更多还原

【Abstract】 Using NCEP 2.5°×2.5° per six hours wind reanalyzed data and observational data,basing the statistic analysis on rainfall intensity,rainfall distribution and influenced system,35 easterly wave weather processes affecting southeast Guangxi in recent 40 years were studied and classified.Then based typical easterly wave process,the weather conceptual model was constructed by using composite analysis methods.Some key points of easterly wave forecast were also put forward with local forecasting experience.更多还原