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气象:2009,35(8):35-41
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黄山地区梅雨期暴雨个例的诊断分析
(安徽省黄山市气象台, 245021)
A Case Study on Dynamics of Summer Rainstorm in Meiyu Period in Huangshan Mountain Area
(Huangshan Meteorological Observatory, Anhui Province, Huangshan 245021)
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投稿时间:2008-09-10    修订日期:2009-01-07
中文摘要: 应用NCEP再分析资料,通过计算ω方程非绝热加热项对垂直速度贡献大小,详解非绝热 加热凝结潜热释放对梅雨暴雨反馈机理,分析黄山地区2008年6月9—10日连续两场梅雨期大 暴雨动力特征,表明潜热释放加强了暴雨区垂直运动和暴雨中尺度系统发展;梅雨锋上降水 存在两种不同性质降水:一种是与切变线、低涡等相联系的大尺度连续性降雨,另一种是因 对流性降水加热造成中尺度强降雨;其次黄山山脉地形及其摩擦对暴雨的增幅作用也不可忽 略。
中文关键词: 梅雨暴雨  潜热释放  垂直速度  中尺度
Abstract:The contribution of diabatic heating to vertical velocity in ω equation for two Meiyu heavy rainfall events occurring 9-10 June 2008 is calculated by us ing the NECP reanalysis data. The feedback mechanism of latent heat release to the Meiyu heavy rainfall systems is interpreted. It is found that the late nt heat release may enhance the ascending motion above the rainfall area and promo te the development of mesoscale systems. The analysis also shows that there are two different kinds of precipitation in the Meiyu front: one is the large scal e continuous precipitation associated with shear line and low vortex; another is the mesoscale heavy rainfall caused by convective heating. Besides that, the dy namic lifting and friction forcing of mountain to the rainfall amplification can not be ignored. 
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刘裕禄,金飞胜,方祥生,杜其成,方素青,2009.黄山地区梅雨期暴雨个例的诊断分析[J].气象,35(8):35-41.
Liu Yulu,Jin Feisheng,Fang Xiangsheng,Du Qicheng,Fang Suqing,2009.A Case Study on Dynamics of Summer Rainstorm in Meiyu Period in Huangshan Mountain Area[J].Meteor Mon,35(8):35-41.