广西水利水电Issue(6)：121-124,139,5.
大石山区洪涝灾害水文测报技术研究与应用
Study and application of hydrological measuring and forecasting technology for flood disaster prevention in rocky mountainous area
覃毅 1黄晓林2
作者信息
- 1. 河池水文中心南丹水文中心站,广西 南丹 547200
- 2. 河池水文中心,广西 河池 547000
- 折叠
摘要
Abstract
The rocky mountainous area is extremely prone to flooding disasters when it is subjected to heavy rainfall due to the special topographical features.Multiple disaster sites distributed widely and disaster occurred abruptly,which poses a great threat to local production and life.In order to determine the area rainfall threshold which may cause flood disaster in the rocky mountainous area,based on the survey form of waterlogging prone areas in Nandan County,the historical rainfall data of flooding areas were collected and analyzed.By use of DEM data,global satel-lite map and GIS software,the authors plot the geographical spatial distribution of flood hazard points in Nandan County,find out the correlation between the area rainfall of each flood area and that of corresponding catchment ar-ea at different time periods,and analyze the rainfall threshold that may lead to disaster.According to the short-term and imminent meteorological forecasts and combined with the rainfall threshold of different periods,the flood disas-ter warning information can be released in advance and corresponding countermeasures can be taken to reduce di-saster losses.关键词
大石山区/洪涝灾害/雨量阈值/GIS/南丹县Key words
rocky mountainous area/flood disaster/rainfall threshold/GIS/Nandan County分类
天文与地球科学引用本文复制引用
覃毅,黄晓林..大石山区洪涝灾害水文测报技术研究与应用[J].广西水利水电,2023,(6):121-124,139,5.
