江淮流域汛期降水时空分布特征及其环流背景初步分析

Time-Space Distributional Characteristics of Precipitation During Rainy Season in the Changjiang-Huaihe Valleys and its Circulation Background

摘要: 应用对应分析等方法分析了江淮流域汛期(5月～9月)降水的时空分布特征,在此基础上按降水旬际变化特征将论域初划为4个区域,最后讨论了各降水区降水异常的500hPa低阶流场背景.

Abstract: Inter-ekad variation of precipitation (IDVP) and its space distribution during rainy season (May to Sep.) in the Jiang-huai valleys are analysed by using correspondence analysis method. Also, the areas can be divided into four rainfall regions according IDVP. Finaly, the typical circulation background for IDVP during rainy seasons are discussed.