近45年5—9月阿勒泰地区强降水气候变化趋势与突变特征

Characteristics of Climatic Change and Catastrophe of Severe Precipitation in Aletai From May to September in Recent 45 Years

摘要: 利用1961—2005年5—9月阿勒泰地区六县一市7站逐日降水资料,对该地区强降水事件的气候变化趋势和突变特征进行分析。结果表明:近45年来,强降水量和强降水日数呈增加趋势,1981年是增加的突变点;强降水强度、极端降水量和日数的变化

Abstract: According to the daily precipitation data at 7 observation sites in Aletai in May to September from 1961 to 2005,the climatic changes and catastrophe of strong precipitation events are analyzed.The results show t