云南春季冰雹、大风天气的中尺度扰动特征  

The Mesoscale Disturbance Features of High Wind and Hail Event over Yunnan in Spring

作　　者：李英[1] 舒智[2] 

机构地区：[1]云南省气象台,昆明650034 [2]云南迪庆州气象局

出　　处：《气象》2000年第12期16-19,共4页Meteorological Monthly

基　　金：中国气象局基金;云南省气象局青年气象科学研究基金资助

摘　　要：应用 Barnus带通滤波方法 ,对 1 997年春季两次发生在滇南的冰雹、大风天气进行滤波分析。结果表明 :冰雹大风发生前 ,昆明准静止锋附近低层有中尺度的扰动波列通过 。The Barnus bandpass filtering method was applied to analyze two high wind and hail events,which occur in spring over the southern Yunnan.The results show that there are mesoscale waves within the lower atmosphere near Kunming Quasi stationary Front before the convective weather happens.The area of high wind and hail includes a sinking motion center and a ascending motion center.

关 键 词：冰雹 大风 中尺度扰动 云南 春季 滤波分析 

分 类 号：P458.121.2[天文地球—大气科学及气象学] P458.123