近62年安康市暴雨发生规律研究
Rainstorm Occurrence Regularity in Ankang City in Recent 62 Years
李黎黎1
作者信息
摘要
利用1953～2014年安康市逐日降水量资料,采用数理统计方法,对年降水量、暴雨日数的年代际和季节变化进行分析,研究近62年来安康市暴雨变化特征.结果表明,1953～2014年安康市年降水量总体上呈波动变化,降水量的年际、年内变化差异较大;安康市年降水量与暴雨日数之间存在明显的正相关;62年间共发生暴雨97d,其中以夏季为主,其次为秋季、春季,冬季没有暴雨发生;大暴雨均发生在夏季;安康市发生暴雨日数最多的是7月,其次为8、9、6、10、5月;降水对汉江流域安康段有明显的影响,该段汛期发生在5 ～ 10月,主汛期为7～9月.
Abstract
According to the daily precipitation of Ankang City in 1953-2014,the inter-decade and seasonal change of precipitation and rainstorm days were analyzed.Rainstorm change characteristics in Ankang City were researched in recent 62 years.Results showed that the precipitation in Ankang City showed fluctuation changes in 1953-2014.There were relatively great changes in the interannual and annual changes of precipitation.There was significant positive correlation between precipitation and rainstorm days in Ankang City.The total rainstorm was 97 d in the 62 years.Among them,rainstorm happened more in summer,followed with summer and spring.There were no rainstorms in winter.The big rainstorm all happened in summer.And July had the maximum rainstorm days in Ankang City,followed with August,September,June,October and May.Precipitation showed no significant impacts on Ankang in Hanjiang river valley.Its flood season appeared from May to October; and the major flood period was from July to September.
关键词
降水量/暴雨日数/变化规律/安康市Key words
Precipitation/Rainstorm days/Change regularity/Ankang City引用本文复制引用
基金项目
安康学院理科培育项目(2014AYPYZR06)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据