摘要
本文通过分析 195 9～ 1997年青海省春季降水量与同期 (或前期 )气温、高度场、海温场、环流特征量等之间的关系得出 :春季 5 0 0 h Pa高度场上 ,巴尔喀什湖至贝加尔湖地区为槽区、南支槽活跃、赤道东太平洋海温及南赤道西印度洋海温偏低、西太平洋副热带高压脊线位置偏北、青藏高原槽明显时 ,青海省春季易多雨 ,相反 ,则少雨。另外 ,将
The correlation between spring's precipitation and circulation sea temperature circulation features is analyzed. Result indicates that the following features lead to much precipitation in spring in Qinghai province:Baikal Lake Okhotsk trough is present,southern trough is strong and active,equatorial eastern Pacific and southern equatorial western Indian Ocean sea temperatures are anomaly lower,the western Pacific subtropical high tends to be more northern than normal, QingZang plateau trough is strong and active. The reverse is true.Furthermore,the comparison of spring's less rainfall in Qinghai province with spring's primary circulation in 1999 is provided.
出处
《气象科学》
CSCD
北大核心
2001年第4期445-451,共7页
Journal of the Meteorological Sciences
基金
国家"九五"重中之重科技项目 96- 90 8- 0 5- 0 3专题"青海省干旱
雪灾监测和预测
评估服务系统研究"项目的资助
