Relationships between Western Pacific Subtropical High and Seasonal Precipitation in Eastern China  

西太平洋副高强度变化与中国东部四季降水的关系(英文)

作　　者：程肖侠[1,2] 石正国[1] 李万莉[3] 

机构地区：[1]陕西省气候中心,陕西西安710015 [2]中国科学院地球环境研究所,陕西西安710075 [3]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《Meteorological and Environmental Research》2010年第4期81-86,共6页气象与环境研究（英文版）

基　　金：Supported by Projects Funded by Scientific Research Special Fund for Public Welfare Industry (GYHY20076029)

摘　　要：The monthly observed average precipitation data of 160 meteorological stations in China from 1960 to 2007,had been reorganized by the China Meteorological Administration.By employing that precipitation data,NCEP/NCAR reanalysis data and the index of intensity of western Pacific subtropical high,the seasonal variations of subtropical high and precipitation in eastern China during the past decades are discussed.The relationships between them also are discussed by correlation and composite analyses.The results show that the intensity of subtropical high,which has significantly strengthened in the recent 50 years,especially in spring,autumn and winter,has notable impact on the simultaneous rainfall in the eastern region of China for all seasons,especially in winter.The monthly observed average precipitation data of 160 meteorological stations in China from 1960 to 2007,had been reorganized by the China Meteorological Administration.By employing that precipitation data,NCEP/NCAR reanalysis data and the index of intensity of western Pacific subtropical high,the seasonal variations of subtropical high and precipitation in eastern China during the past decades are discussed.The relationships between them also are discussed by correlation and composite analyses.The results show that the intensity of subtropical high,which has significantly strengthened in the recent 50 years,especially in spring,autumn and winter,has notable impact on the simultaneous rainfall in the eastern region of China for all seasons,especially in winter.

关 键 词：Precipitation in eastern China Intensity of subtropical high Seasonal variation Atmospheric circulation China 

分 类 号：P461.2[天文地球—大气科学及气象学]