青藏高原地表热状况与华西秋雨  

Relationship between the Surface Heating Fields over QinghaiXizang Plateau and Precipitation of Southwest China in Autumn

作　　者：陈忠明[1] 刘富明[1] 赵平[2] 马振锋[3] 

机构地区：[1]四川省气象科学研究所,四川成都610072 [2]成都气象学院,四川成都610041 [3]四川省气象台,四川成都610072

出　　处：《高原气象》2001年第1期94-99,共6页Plateau Meteorology

基　　金：国家科技攻关项目!(96 90 8 0 5 0 5 );四川省攻关项目"四川省农业主要灾害性气候的预报技术研究"资助

摘　　要：利用 196 1- 1995年青藏高原及其邻近地区 148个测站的月平均资料 ,分析研究了高原地面热源与华西秋雨的联系。结果表明 ,高原东部地面热源与华西秋雨存在着显著的负相关关系。高原东部地面热源异常强迫 5 0Surface heating fields over the QinghaiXizang plateau were estimated using the 35 years(1961—1995) data set of 148 observation stastions in the QinghaiXizang plateau and near area, the relationship between the surface heating fields over the plateau and precipitation in the southwest China in autumn is anlysed. The results are as follows: (1) There are negative correlations between the surface heating over eastern part of QinghaiXizang plateau and precipitation in southwestern China in autumn. (2) Anomaly of 500 hPa atmospheric circulation over the AsiaEurope forced by abnormal of surface heating over the Plateau is able to restrict amount of precipitation in the southwestern part of China in autumn.

关 键 词：青藏高原 地面热源 相关分析 热力作用 西南地区 秋季 降水 

分 类 号：P426.615[天文地球—大气科学及气象学]