The Effect of the Subtropical Jet on the Rainfall over Southern China in January 2008  

作　　者：ZUO Qunjie GAO Shouting L Daren 

机构地区：[1]Laboratory of Cloud-Precipitation Physics and Severe Storms Institute of Atmospheric Physics,Chinese Academy of Sciences [2]Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric Physics,Chinese Academy of Sciences [3]State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences

出　　处：《Advances in Atmospheric Sciences》2014年第3期543-550,共8页大气科学进展（英文版）

基　　金：supported by the National Basic Research Project of China (Grant Nos.2013CB430105 and 2012CB417201);the National Natural Science Foundation of China (Grant No.40930950);Chinese Academy of Meteorological Sciences State Key Laboratory of Severe Weather (LaSW) (Grant No.2011LASW-A01);the Key Research Program of the Sciences (Grant No.KZZD-EW-05-01)

摘　　要：ABSTRACT The third precipitation episode of China＇s great snowstorms of 2008 was analyzed using station observations and ECMWF six-hourly data. The variation of the shape of the upper-level subtropical jet played an important role in the rainfall over south- ern China. With the eastward movement of the trough, the jet shape changed from two straight jets to a tilting jet over China and then it moved southward. With these variations, the south-north movement of ascending flow and precipitation area over southern China occurred.ABSTRACT The third precipitation episode of China＇s great snowstorms of 2008 was analyzed using station observations and ECMWF six-hourly data. The variation of the shape of the upper-level subtropical jet played an important role in the rainfall over south- ern China. With the eastward movement of the trough, the jet shape changed from two straight jets to a tilting jet over China and then it moved southward. With these variations, the south-north movement of ascending flow and precipitation area over southern China occurred.

关 键 词：upper-level subtropical jet transverse circulation ageostrophic wind snowstorms 

分 类 号：P426.6[天文地球—大气科学及气象学]