辽宁汛期降水异常的环流因子分析  

Analyses on Circulation Characteristics of Precipitation Anomalies in Flood Season of Liaoning

作　　者：杨文艳[1] 王谦谦[2] 

机构地区：[1]辽宁省盘锦市气象局,辽宁盘锦124010 [2]南京信息工程大学大气科学系,江苏南京210044

出　　处：《高原气象》2006年第5期969-974,共6页Plateau Meteorology

基　　金：国家自然科学基金项目(40175021;40233037)资助

摘　　要：在分析辽宁汛期降水的气候特征基础上,着重对影响辽宁汛期降水的环流特征进行了分析,结果表明:(1)近44年辽宁汛期降水呈下降趋势并出现显著的年际、年代际变化特征。(2)辽宁汛期水汽来源于西南夏季风和我国东部海域,汛期降水异常与低空的西南、东南夏季风、中空的极涡、西风槽、西太平洋副热带高压活动及高空的南亚高压关系密切。Based on the analysis of climatic characteristics of precipitation in flood season of Liaoning, the circulation characteristics infulence on precipitation in flood season Liaoning are analyzed. The rsults are as follows： （1） precipitation shows the decreasing trend and remarkable interannual and interdecadal variations in flood season in the last 44 years. （2） precipitation anomalies in flood season have a good correlations with southwest and southeast summer monsoon, polar vortex, west wind trough, the subtropical high over West Pacific and South Asia High.

关 键 词：辽宁省 汛期降水 环流特征 

分 类 号：P147[天文地球—天体物理]