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中文摘要: 使用我国东部地区41个代表站1991年4—9月旬降水量资料,着重分析了1991年夏季风降水爆发和雨带移动的时空变化特征;使用EOF分析,着重讨论了1991年4—9月我国降水的主要分布型和2—3个旬的月内低频变化。并初步探讨了江淮大涝和大旱年主要分布型的差异。
中文关键词: 降水，时空变化，EOF分析，江淮旱涝
Abstract:The temporal and spatial characteristics of the onset of the summer monsoon rainfall and the shift of the rain belt over East China is analysed based on the dekad rainfall data at 41 stations from April to September in 1991. The distribution patterns of the summer monsoon rainfall arediscussed using empirical orthogonal function (EOF) and its 20 to 30 day'low-frequency variability is also discussed. The difference between the rainfall distribution patterns in flood years and that in drought years in the Jianghuai area is considered tentatively.
keywords: Precipitation temporal and Spatial distribution,EOF analysis,drought/ flood in the Jianghuai area
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引用文本：
陈桂英,1993.1991年我国夏季降水的时空变化特征[J].气象,19(5):39-44.
,1993.Temporal and Spatial Characteristics of Summer Monsoon Rainfall in China in 1991[J].Meteor Mon,19(5):39-44.
陈桂英,1993.1991年我国夏季降水的时空变化特征[J].气象,19(5):39-44.
,1993.Temporal and Spatial Characteristics of Summer Monsoon Rainfall in China in 1991[J].Meteor Mon,19(5):39-44.