近50年孝感市降水变化特征分析

Precipitation Variation Characteristics of Xiaogan City for Last 50 Years

摘要: 利用趋势分析、小波变换等方法,分析了湖北省孝感市1957—2006年近50年降水的多时间尺度变化特征。结果表明:孝感市年降水量呈弱增加趋势,春秋季降水量呈下降趋势,冬夏季降水量呈增加趋势,其中以冬季降水增加趋势最为显著,降水量变

Abstract: The multiple temporal scale features of precipitation variation in Xiaogan from 1957 to 2006 were analyzed by Morlet wavelet transform and trend analysis, and the related factors of climate change are discussed.