摘要
为有效应对可能发生的水旱灾害领域极端事件,考虑人口密集、经济发达等因素,研究城市超标洪水淹没范围势在必行。以瑞金市城区为例,利用ArcGIS反距离权重插值方法,结合城区控制断面(瑞金水位站)及其锦江上下游实测断面水位数据,构建了瑞金市城区范围的水位曲面,计算分析了超标洪水淹没分析范围。结果表明,当瑞金市遭遇超标洪水时,锦江左岸除少部分地势较高区域外其余区域受洪水影响较大,右岸主县城区域相对受影响较小,最大约有近一半城区区域受超标洪水影响。该成果可为瑞金市防汛部门提供决策依据。
In order to effectively respond to extreme events in the field of flood and drought disasters that may occur,it is imperative to pay attention to factors such as population density and economic development.Taking Ruijin city as an example,the urban water level surface is constructed combined with the water level data of the urban control section(Ruijin water level station)and the measured section of the upstream and downstream of Jinjiang river,by using the inverse distance weighted interpolation model in the ArcGIS extension module.The results show that when Ruijin city encounters excessive standard flood,except for a few high-lying areas on the left bank of the Jinjiang river,the remaining areas are more affected by the flood,and the main county area on the right bank is relatively less affected,with nearly half of the urban area,by the excessive flooding.The results can provide decision basis for flood control department of Ruijin city.
作者
谢华
李德龙
黄萍
许小华
汪国斌
王海菁
XIE Hua;LI Delong;HUANG Ping;XU Xiaohua;WANG Guobin;WANG Haijing(Ruijin Water Conservancy Bureau;Jiangxi Academy of Water Science and Engineering,Nanchang 330029,China;State Key Laboratory of Hydrology Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China)
出处
《江西水利科技》
2021年第6期422-426,436,共6页
Jiangxi Hydraulic Science & Technology
基金
江西省水利厅科技项目(202123TGKT15,202022YBKT06)。
关键词
瑞金市
反距离权重
超标洪水
洪水分析
Ruijin city
Inverse Distance Weighting(IDW)
Exceeding standard flood
Flood analysis
