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中文摘要: 通过分析2004年6月副高、阻高系统的特征,并将其与历史少雨年和多雨年差值场做对比得出:2004年6月西太平洋副高偏东偏北、鄂霍次克海阻高偏弱是江西降雨偏少的重要原因;6月500hPa高度距平场沿东亚沿岸呈“-+-”分布有利江西少雨。利用OLR资料分析ITCZ与江西6月降水以及与副高的关系得出:ITCZ偏强有利江西少雨和有利副高脊线偏北。
中文关键词: 降水特少，副高，阻高，ITCZ
Abstract:The characteristics of the Western Pacific Subtropical High (WPSH) and the Blocking High (BH) in June 2004 as well as the differences of 500hPa height and OLR between the drought years and the flooding years are studied. The results show that the important reasons for the below normal precipitation in June 2004 in Jiangxi are that the position of the WPSH is eastward and northward, and Okhotsk BH is weaker. The pattern of “- + -” of 500hPa height anomaly along the East Asian coast leads to the below normal precipitation in Jiangxi. The correlation analysis shows that the strong ITCZ leads to the northern WPSH and the below normal precipitation in Jiangxi.
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引用文本：
尹洁,2005.2004年6月江西降水异常偏少成因初探[J].气象,31(11):74-77.
,2005.Analysis of Below Normal Precipitation in Jiangxi in June 2004[J].Meteor Mon,31(11):74-77.
尹洁,2005.2004年6月江西降水异常偏少成因初探[J].气象,31(11):74-77.
,2005.Analysis of Below Normal Precipitation in Jiangxi in June 2004[J].Meteor Mon,31(11):74-77.