摘要
通过收集漳州市区近两年内涝情况和降水数据,共收集16次内涝过程共37点次,并对内涝过程进行分析。结果表明2020年内涝较2019年频繁,其次,内涝主要发生在5月至9月,5月最多、8月次之,5月和8月的内涝范围也是最大的。内涝主要出现的时间在午后到晚上。空间分布特征表明,漳州市区积水点分布基本各区都有,但是主要集中在市中心、城乡结合部及低洼路段。统计表明:漳州市区内涝和短时强降水密切相关,发生内涝时周边平均小时降水量24毫米。将造成漳州.城市内涝的大尺度环流形势分为副高型边缘型(局地热对流)、台风型和暖区降水型。
Based on the collected data of 16 waterlogging processes in Zhangzhou in the past two years,a total of 37 points,combined with precipitation data,the waterlogging process was analyzed.The results show that:firstly,the waterlogging in 2020 was more frequent than that in 2019.Secondly,the waterlogging mainly occurred in May to September,with the most in May and the second in August.And the range of waterlogging in May and August is largest.Waterlogging mainly occurs in the afternoon to evening.The spatial distribution characteristics show that there are water accumulation points in all districts,mainly concentrated in the downtown area,urban-rural junction and low-lying road sections.Statistics show that the occurrence of waterlogging in Zhangzhou urban area is closely related to short-term heavy precipitation.The average hourly precipitation in the surrounding area is 24 mm when waterlogging occurred.The large-scale circulation patterns that cause urban waterlogging in Zhangzhou can be divided into sub-high edge type(local thermal convection),typhoon type and warm section precipitation type.
出处
《大众科技》
2022年第6期22-25,共4页
Popular Science & Technology
基金
漳州市科技计划项目(ZZ2021J31)
闽西南区域协同发展气象科技专项课题(2020MXN07)。
关键词
短时强降水
内涝
漳州
short-term heavy precipitation
waterlogging
Zhangzhou
