北极海冰面积对湖北省夏季降水的影响  

THE EFFECT OF THE ARCTIC SEA ICE AREA ON THE PRECIPITATION IN SUMMER OF HUBEI PROVINCE

作　　者：马乃孚[1] 李劲[1] 魏静[1] 

机构地区：[1]湖北省气象科学研究所

出　　处：《华中师范大学学报（自然科学版）》1998年第3期367-371,共5页Journal of Central China Normal University：Natural Sciences

基　　金：国家"九五"科技攻关课题

摘　　要：利用１９５３～１９８４年北极各海区逐月海冰覆盖范围资料，采用遥相关、滞后相关等统计－天气气候学分析方法，研究北极海冰面积变化对湖北省夏季降水的影响，揭示了湖北省夏季降水与北极某些分区海冰存在较好的滞后相关关系，并初步分析了海冰与极涡、西太平洋副热带高压强度、面积指数、５００ｈＰａ月平均高度场等大气环流因子的关联，探讨了冰－气间可能的影响过程．This paper studies the influence of the Arctic sea ice area on the precipitation in summer of Hubei province, according to the Arctic monthly mean sea ice area data during 1953～1984 by the statistics method of the teleconnection and lag connection, etc. It reveals the better lag connection relationship between the precipitation in summer of Hubei province and a few districts of the Arctic sea ice. It analyses the correlation between the Arctic sea ice and the factors of atmospheric circulation such as polar vortex, the intensity and area indices of subtropical high pressure in the western Pacific ocean, the 500 hPa geopotentical height field, and discusses the possible influence of physical processes.

关 键 词：北极 海冰面积 降水 滞后相关 气候 

分 类 号：P461.6[天文地球—大气科学及气象学]