大英县近10年降水变化特点分析  

Analysis of the Precipitation Change Characteristics over the Past Decade in Daying

作　　者：林红 

机构地区：[1]四川省大英县气象局,四川大英629300

出　　处：《安徽农业科学》2015年第25期211-212,共2页Journal of Anhui Agricultural Sciences

摘　　要：利用大英县2004-2013年逐日降水资料,采用统计学方法,对大英近10年降水的实际变化特点、季节差异等进行简要阐述,并对直接影响工农业生产和人们生活、外出旅游以及交通运输等的暴雨进行了重点统计分析。结果表明,2004-2013年大英县年雨量和暴雨日数分布特征均呈单峰型,峰值均出现在7月;暴雨雨量、雨日与年降雨量存在明显的正相关关系;夏季同月雨量差距巨大;初秋的9月出现暴雨的概率较大,月雨量、暴雨出现次数均为全年的次高值;大英县出现秋绵雨的概率达50%,集中出现在9、10月。Using daily precipitation data of Daying County during 2004 - 2013, adopting statistics method, The variation features and seasonal differences were elaborated, the statistical analysis of the rainstorm which has direct influence on industrial and agricultural production, the people＇ s normal life, travel and transportation was conducted. The results showed that the distribution of annual rainfall and rainstorm days are all single peak shape, peak values occur in July ; There is a positive correlation between the rainfall, annual rainfall and rainy days ; Probability of occurrence of heavy rain in September is high ; The probability of the emergence of autumn rain in Daying County is 50%, concentrated in September and October.

关 键 词：降水 变化特点 季节差异 暴雨 

分 类 号：S161.6[农业科学—农业气象学]