摘要
采用复经验正交函数（ＣＥＯＦ）方法对我国干旱半干旱区４５个代表站，近４０年来的月降水距平场划分出３种主要的分布型，分析了它们的分布特征。同时还揭示了北极海冰状况与干旱半干旱区夏季降水的密切关系，并初步分析了海冰与极涡、西太平洋副热带高压等大气环流的关联，以了解其可能的天气学影响过程。
he temporal and spatial distribution of precipitation in the dry and semi-dry region of China are investigated by carrying out the complex Emperical Orthogonal Function technique for 45 stations from 1950 through 1992 A. D. In this region, Three spatial patterns have been derived. In addition, the relationship between the precipitation patterns and Arctic sea ice indices have been also analysed. Finally, the possible influence of physical processes were also discussed.
出处
《气象》
CSCD
北大核心
1995年第9期11-15,共5页
Meteorological Monthly
基金
国家气象局"八五"重点课题
