【作者】 邹瑾； 孙忠；

【Author】 Zou Jin Sun Zhong ( Shandong Provincial Meteorological Center,Jinan 250031)

【机构】 山东省气象中心；

【摘要】 本文利用NCEP/NCAR500hPa月平均高度场资料及山东省夏季高温资料,运用SVD、合成分析等统计方法,分析了春季大气环流异常对山东省夏季高温的影响。结果发现:春季500hPa高度异常场上有三个关键区影响山东省夏季高温;春季乌拉尔阻高发展不利于山东夏季高温,欧亚高空槽春季异常对山东夏季高温影响不容忽视,欧亚地区纬向环流和亚洲地区经向环流的年代际变化与山东省夏季高温异常年代际变化有很好的对应关系。更多还原

【Abstract】 Base on the NCEP/NCAR reanalysis monthly mean data and the data of summer high temperature,the relations between Spring atmospheric circulation anomaly and summer high temperature in Shandong province are analyzed by using the singular value decomposition (SVD) technique and composite analysis method etc.The results show that there are three “key regions” in Spring 500hPa geo-potential field which have important influence on summer high temperature in Shandong;The Spring developing blocking high over Ural mountains gose against summer high temperature in Shandong.The effects of Spring high-altitude trough over Eurasia on high temperature should not be disregarded.There are very nice corresponding relationship of inter-decadal variation between summer high temperature anomaly in Shandong Province and Spring atmospheric circumfluence index over Eurasia area.更多还原