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2022年重庆市夏季高温干旱时空分布特征分析

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为探究2022 年重庆市夏季高温干旱时空分布特征,对比重庆市2022 年7-8 月逐日降水量、日最高气温及历史干旱年夏季高温日数,使用反距离权重插值法、时间序列分析法分析重庆市 34 个气象站点夏季干旱特征、典型站点逐日降水量和逐日最高温的时空特征及夏季高温日数时空特征.结果发现:2022 年重庆市夏季特大干旱达60 d,平行岭谷区及川中丘陵区比其他区域干旱时间更长、频率更高、程度更严重.2022 年夏季重庆市遭遇了全域性、长时期的特大干旱事件,建议综合考虑工程和非工程措施增强地区抗旱能力.
Spatio-temporal Distribution Characteristics of High Temperature and Drought in Chongqing in Summer of 2022
In order to investigate the spatio-temporal distribution characteristics of high temperature and drought during the summer of 2022 in Chongqing,this study compared the daily precipitation and daily maximum temperature from July to August 2022 there with the historical summer high-temperature days during drought years,and employed the inverse distance weighting interpolation method and time series a-nalysis to analyze the summer drought characteristics at 34 meteorological stations there,as well as the spatio-temporal characteristics of daily precipitation and daily maximum temperatures at typical stations,and the spatio-temporal characteristics of summer high-temperature days.The results show that the ex-treme summer drought in Chongqing in 2022 lasts 60 days,with longer,more frequent,and more severe drought periods in paralleled ridge-valley region and the hilly areas of central Sichuan than other areas.In the summer of 2022,Chongqing experiences an extensive and prolonged severe drought,so it is recom-mended to comprehensively consider both engineering and non-engineering measures to enhance the re-gional drought resistance.

high temperature and droughtspatio-temporal characteristicshigh temperature daysChongqing

钟诗婷、邵景安

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重庆师范大学 地理与旅游学院,重庆 401331

重庆师范大学 三峡库区地表过程与环境遥感重庆市重点实验室,重庆 401331

高温干旱 时空特征 高温日数 重庆市

2025

西华师范大学学报(自然科学版)
西华师范大学

西华师范大学学报(自然科学版)

影响因子:0.212
ISSN:1673-5072
年,卷(期):2025.46(3)