近45 a河源地区暴雨日数的气候特征分析

摘要

利用1970-2014年河源地区的5个国家气象观测站的逐日降水资料,采用线性趋势分析、Mann-Kendall检验、Morlet小波分析等方法,分析了河源地区暴雨发生日数的时空分布特征及其变化规律,为河源地区的暴雨预报和防灾减灾工作提供有价值的参考依据.%Based on the daily precipitation data of 5 national weather station in Heyuan region from 1970 to 2014, through linear trend analysis, Mann-Kendall and Wavelet analysis were analyzed in the spatial and temporal distribution characteristics and their variation of rainstorm days in Heyuan area, It provides valuable reference for Rainstorm forecast and disaster prevention and mitigation in Heyuan Region.