绍兴市近49a降水和旱涝变化特征分析

Climatic Variation of Precipitation and Drought-Flood Events During the Past 49 Years in ShaoXing

摘要: 利用绍兴市1961—2009年逐日降水资料,使用一元线性回归、奇异谱分析和滑动t检验等方法,分析了绍兴市年、季、月降水和雨日的气候变化特征及旱涝发生规律。结果表明,近49 a绍兴市年降水量呈弱的线性增加趋势,其中夏、冬季降水量上

Abstract: Based on daily precipitation data in Shaoxing,Zhejiang province from 1961 to 2009,the climatic variation characteristics of yearly,seasonally,monthly precipitation and rain day were analyzed and the occurrence re