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中文摘要: 研究了2003年夏季中高纬环流特征以及乌拉尔山、鄂霍茨克海和贝加尔湖三个地区阻高指数逐候的变化情况。6月下旬至7月上旬东亚中高纬出现“双阻”形势,造成淮河流域持续一个多月的集中强降水,但是在7月底,鄂霍次克海阻高再度建立并持续,致使盛夏西太平洋副热带高压较常年偏南,所以雨带的位置也未能北移。因此2003年夏季主要雨带维持在淮河流域。
中文关键词: 中高纬度环流，阻塞高压，淮河流域，夏季降水
Abstract:The characteristics of the middle-high latitude circulation and the blocking high are analyzed. There were two blocking high in the middle-high latitude region of East Asia from the last ten days of June to the first ten days of July. This made the rainfall sustain in the Huaihe River Basin. In the last ten days of July, the blocking high in the Okhotsk Sea founded again and sustained in this place. So the subtropical high in western north Pacific region was in the south on an average, so the rain-belt did not advance northward and sustained mainly in the Huaihe River Basin.
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引用文本：
龚振淞,王永光,许力,2004.2003年夏季中高纬度环流与淮河流域降水[J].气象,30(2):30-33.
,2004.Middle-high Latitude Circulation and Rainfall of Huaihe River Basin in the Summer of 2003[J].Meteor Mon,30(2):30-33.
龚振淞,王永光,许力,2004.2003年夏季中高纬度环流与淮河流域降水[J].气象,30(2):30-33.
,2004.Middle-high Latitude Circulation and Rainfall of Huaihe River Basin in the Summer of 2003[J].Meteor Mon,30(2):30-33.