潮州市近51a降水量和暴雨日数的时间变化特征分析

The Analysis of Variation Precipitation and Number of Rainstorm in Chaozhou in the past 51 years

摘要: 利用潮州1957—2007年逐日降水资料,统计分析其年、季降水气候特征及暴雨气候特征;应用MHF小波方法分析年降水量及暴雨日数的多时间尺度特征。结果表明:(1)潮州年降水量总体呈上升趋势,前汛期降水量对全年雨量的贡献逐渐下降,后汛

Abstract: According to the daily rainfall data from 1957 to 2007 in Chaozhou,the climate features of precipitation and rainstorm yearly and seasonally were statistically analyzed,and based on the Mexican Hat Function(MHF)