苍溪县干旱特征分析研究
Analysis and Study on Drought Characteristics in Cangxi County
邓钰洋1
作者信息
- 1. 广元市苍溪县气象局,四川 苍溪 628400
- 折叠
摘要
利用苍溪县气象局提供的1993-2022年苍溪国家基本气象站各时段降水量数据,使用统计学方法并结合干旱等级划分标准,对苍溪县干旱特征进行分析,结果表明:苍溪县年降水在时间分布上极为不均,1993-2022年苍溪县冬季有24年出现干旱天气,冬旱频率最高,年均为1.1次,夏旱、伏旱次之,发生频率均为80％.当地干旱发生频率较高但干旱严重程度较低.近年来,苍溪县各季度降水量较常年有所上升,干旱发生次数较常年有所减少,干旱风险有所下降.
Abstract
This paper uses the precipitation data provided by the Cangxi County Meteorological Bureau from 1993 to 2022 at various time periods of the Cangxi National Basic Meteorological Station,and uses statistical methods combined with drought level classification standards to analyze the drought characteristics of Cangxi County.It is found that the annual precipitation in Cangxi County is extremely uneven in time distribution.From 1993 to 2022,there were 24 years of dry weather in the winter of Cangxi County,with the highest frequency of winter drought,averaging 1.1 times per year,followed by summer drought and summer drought.The frequency of occurrence is all 80％.The frequency of local drought occurrence is relatively high,but the severity of drought is relatively low.In recent years,the precipitation in each quarter of Cangxi County has increased compared to normal years,and the number of droughts has decreased,resulting in a decrease in drought risk.
关键词
干旱/特征分析/苍溪县Key words
drought/feature analysis/Cangxi County引用本文复制引用
出版年
2024
NETL
NSTL
万方数据