云南雨季开始的大雨过程研究  

THE RESEARCH ON THE HEAVY RAINFALL PROCESS OF YUNNAN RAINY SEASON ONSET

作　　者：解明恩[1] 陶云[1] 

机构地区：[1]云南省气象局

出　　处：《热带气象学报》2004年第6期662-672,共11页Journal of Tropical Meteorology

基　　金：云南省气象局2003年青年基金课题("九五"短期气候预测方法在云南雨季开始期预测中的释用对比研究);云南省自然科学基金重点项目(2003D0014Z)

摘　　要：应用1961～2002年4～7月云南125站逐日降水资料和NCEP/NCAR再分析资料,确定了云南进入初夏后第一场全省性大雨过程日期,合成分析了云南初夏第一场大雨过程发生前后对流层低层(850hPa)、高层(200hPa)流场及热带对流活动(OLR场)特征,提取了云南初夏第一场大雨过程发生前后的强信号,为云南初夏第一场大雨过程(透地雨)预报提供依据。Using the April～July(1961～2002) daily precipitation data of 125 weather stations in Yunnan Province and the NCEP/NCAR daily reanalysis data set, we determined that the first heavy rainfall process date of Yunnan takes place in the early Summer and analysed the characteristics of the 850hPa and 200hPa resultant stream fields and the resultant OLR fields of the first heavy rainfall process of Yunnan takes place in the early Summer. Strong signals were obtained which would provide basis for the forecast of the first heavy rainfall process of Yunnan in the early Summer.

关 键 词：初夏 第一场大雨 对流层风场 热带对流 

分 类 号：P426.62[天文地球—大气科学及气象学]