桂林中小河流洪涝气象风险预警系统设计  

Design of the Middle and Small Rivers Basin Flood Meteorological Risk Warning System of Guilin

作　　者：李向红[1] 唐桥义[1] 伍静[1] 王娟[1] 王存真[1] 王军君[1] 何华君 梁维亮[3] 黄燕波[4] 

机构地区：[1]桂林市气象局,广西桂林541001 [2]北京轩程通达科技有限公司,北京100024 [3]广西区气象台,广西南宁530022 [4]北海市气象局,广西北海536000

出　　处：《灾害学》2014年第1期42-46,共5页Journal of Catastrophology

基　　金：桂林市科技开发计划项目"桂林市地质灾害气象条件研究"(20120119-1);中国气象局华南区域气象中心项目"广西汛期连续性暴雨前期强信号研究"(CRMC2012M07);2013广西自然科学基金项目"孟加拉湾对流对广西锋面暴雨影响机制研究"(2013GXNSFAA019288)

摘　　要：基于自动站、数值预报和雷达估测降水等多种雨量资料,利用ArcGIS技术提取河流的经纬度、流域范围,利用泰森多边形技术计算流域面雨量,结合对桂林中小河流域的历史暴雨洪涝风险个例分析结果,确定临界面雨量,建立桂林中小河流域洪涝灾害风险等级预警系统。利用数学内插技术进行雨量精细化插值,实现全市100多个水库、200多条河流关键点的雨量监测、预报、预警。利用Web和GIS技术实现桂林中小河流洪涝预警网页发布。Based on precipitation data of automatic stations,numerical prediction and radar precipitation estimation,longitude,latitude and the drainage basin area are got by using ArcGIS and the basin area precipitation is calculated by Thiessen Voronoi Technology. Combining with the analysis results on cases of historical small and medium-sized rivers flood in Guilin,the critical surface rainfall is determined and a warning system is built. Using the mathematical interpolation technique for fine interpolation of rainfall,the key notes rainfall monitoring,predicting and warning of more than 100 reservoirs and more than 200 rivers are realized. Using the GIS technology,the meteorological risk warning of the middle and small rivers basin flood can be issued by webpage.

关 键 词：河流洪涝 气象风险 预警 广西桂林 

分 类 号：P33[天文地球—水文科学] X43[水利工程—水文学及水资源]