青藏高原地表感热与华北夏季降水的相关分析  

A Study on the correlation between Tibetan plateau surface sensible heating and the precipitation over north China during rainy season

作　　者：唐瑜[1] 余锦华[2] 

机构地区：[1]华东师范大学地理信息科学教育部重点实验室,上海200062 [2]南京信息工程大学江苏省气象灾害和环境变化重点实验室,南京210044

出　　处：《气象科学》2008年第2期201-204,共4页Journal of the Meteorological Sciences

基　　金：国家自然基金项目(40375032)

摘　　要：利用1956—2002年青藏高原地表感热状况,1957—2002年我国华北地区104站月降水资料,分析了青藏高原地表感热与华北夏季(7、8月)降水的可能联系。结果表明,青藏高原4月感热与华北地区夏季降水具有较显著的负相关,高关键区位于高原的北部。于是,进一步计算了高原关键区与华北各地区夏季降水的相关系数,影响最显著的地区主要位于内蒙古的东南部以及山东南部。最后通过计算得出华北南部与青藏高原北部地区有较好的相关性。The possible connections are statistically analyzed between the surface sensible heating of Tibetan Plateau and the precipitation over North China and its subregions during rainy season （in July and August） using the datasets of monthly sensible heating for 1956-2002 and 104 stations rainfall over North China for 1957-2002. The result shows that the relations exist between sensible heating during April and the precipitations over North China during rainy season with the high values situated at north areas of Tibetan Plateau. Furthermore, we calculate the correlation between the key area of Tibetan Plateau sensible heating and the precipitation over North China and find the striking correlation between the north area of Tibetan Plateau and the south area of North China.

关 键 词：夏季降水 青藏高原 感热 相关分析 

分 类 号：P434.4[天文地球—大气科学及气象学]