江苏省近50a夏季旱涝分布特征变化的研究  

THE STUDY OF THE VARIATIONAL CHARACTER OF JIANGSU SUMMER DROUGHT AND FLOOD DISTRIBUTION

作　　者：吕军[1] 张静[1] 施宁[2] 陶玫[1] 胡洛林[1] 

机构地区：[1]江苏省气象台,南京210008 [2]江苏省气象局,南京210009

出　　处：《气象科学》2003年第4期467-471,共5页Journal of the Meteorological Sciences

基　　金：国家自然科学基金资助项目 (No :4 97710 0 1)

摘　　要：将江苏省夏季降水进行EOF分析 ,通过研究降水时空分布的演变特征 ,对江苏省夏季典型旱涝年进行分类。结果表明近二十多年来 ,全省性的旱涝年相对减少 ,而南北旱涝相反的年份开始增多。此外 ,通过研究前期西太平洋副热带高压的变化特征 。Jiangsu summer representative drought or flood year is classified by studying evolvement character of Jiangsu summer precipitation space-time distribution with EOF. The result indicates during recent twenty years, the drought or flood years of entirely province relatively decrease, and that the regional drought or flood years increase. Moreover, by studying prophase variety character of the Northwest Pacific subtropical high pressure its effect on the change of distribution of summer drought and flood in Jiangsu is analyzed.

关 键 词：EOF 旱涝 副高 

分 类 号：P46[天文地球—大气科学及气象学]