气象2016，Vol.42Issue(3)：271-279,9.DOI:10.7519/j.issn.1000-0526.2016.3.002
东北地区春季首场透雨的变化特征及与青藏高原地面加热场强度的关系
Characteristics of the First Soaking Rain in Northeast China and Its Response to Surface Heat Source over the Tibetan Plateau
摘要
Abstract
Based on the precipitation data in April and May for the period 1958-2012 from 178 meteoro-logical stations in Northeast China,JRA-55 and NCEP/NCAR-I reanalysis,the study is performed of the first soaking rain date as well as its relation with the soaking rainfall and the total rainfall from April to May.In addition,response of the soaking rain date to the surface heat source over the Tibetan Plateau is also discussed.The results suggest that,since 1958,the soaking rain date in Northeast China,has shown a positive relation with the soaking rainfall and a negative relation with the total rainfall,suggestive of the place where the soaking rain date is early (late),the soaking rainfall is smaller (larger)and the total rain-fall is larger (smaller).Besides,the correlation between the surface heat source over the Tibetan Plateau in April and the soaking rain date is negative,which means when the surface heat source in April gets en-hanced,cold air from the north and warm air from the south intersect over Northeast China,updrafts,are strengthened,and water vapor transport is abundant,making the soaking rain date in Northeast China come early (late).关键词
春播期/首场透雨/青藏高原地面加热场/东北地区Key words
spring/soaking rain/surface heat source over the Tibetan Plateau/Northeast China分类
天文与地球科学引用本文复制引用
徐士琦,李栋梁..东北地区春季首场透雨的变化特征及与青藏高原地面加热场强度的关系[J].气象,2016,42(3):271-279,9.基金项目
公益性行业（气象）科研专项（201406001）和国家自然科学基金项目（91337109）共同资助 （）
