一次早春多单体冰雹分析  

Case Study of Multi-Cell Hailstorm in Early Spring

作　　者：金飞胜 黄飞羽 方素青 查光英 

机构地区：[1]安徽省黄山市气象局 [2]安徽省黄山气象管理处,黄山245021

出　　处：《气象科技》2010年第5期577-580,663,共5页Meteorological Science and Technology

基　　金：2009年黄山市自然科技计划项目"中心城区渍涝内涝预警系统"资助

摘　　要：利用常规气象资料、NCEP再分析资料,结合黄山多普勒雷达观测资料,对2009年2月发生在黄山地区一次冰雹天气个例发生发展过程进行分析。结果显示:①此次降雹是由于高空急流引发的,有一次积云合并过程,具有多雷暴单体的基本特征。②冰雹发生在早春2月,具有明显的季节特征,组合反射率也很高,但由于空气柱气温较低,垂直液态水含量相比初夏的冰雹要小,-20℃高度相比初夏低1～2km。Using the conventional meteorological data, the NCEP reanalyzed data, in combination with Huangshan Doppler radar observational data, the hailstorm occurred in February 2009 in the Huangshan Mountain area is studied. The results indicate： （1） The hailstorm, having the feature of multiple convective cells, was induced by an upper-level jet and a merging process of cumulus clouds. （2） The hailstorms occurring in early in spring have common features of hailstorms, and also have obvious seasonal feature： the combination emissivity is also very high, but because the column temperature is relatively low, compared with early summer hailstorms, the vertical liquid water content is smaller, and the height of -20 ℃ was 1 to 2 kilometers lower.

关 键 词：早春 多单体 冰雹 个例分析 

分 类 号：P458.121.2[天文地球—大气科学及气象学]