基于ArcGIS的廊坊地区洪涝灾害风险评估及洪水淹没分析  

Risk assessment and inundation analysis of flood in Langfang region based on ArcGIS

作　　者：武杰 安洪岩 李翾 朱梅涛 龚伦 牛学瑶 宋东阳 王兴 顾亚强 李学光 WU Jie;AN Hong-yan;LI Xuan;ZHU Mei-tao;GONG Lun;NIU Xue-yao;SONG Dong-yang;WANG Xing;GU Ya-qiang;LI Xue-guang(Langfang Natural Resources Comprehensive Survey Center,CGS,Langfang 065000,Hebei Province,China)

机构地区：[1]中国地质调查局廊坊自然资源综合调查中心,河北廊坊065000

出　　处：《地质与资源》2025年第1期103-111,共9页Geology and Resources

基　　金：中国地质调查局“京津冀廊坊地区生态修复支撑调查”(ZD20220202).

摘　　要：基于ArcGIS平台,提取高精度DEM数据,选取洪涝灾害风险评估指标体系因子,运用洪涝灾害风险评估原理方法、AHP层次分析法、加权综合评价法和ArcGIS空间分析模块重点分析了危险性、暴露性、脆弱性、防灾减灾能力4个复合因子.在自然灾害与社会经济因素的基础上,对廊坊市广阳、永清、文安、大城等区县洪涝灾害进行风险评估与区划.结果认为,廊坊地区洪涝灾害综合风险区划呈现出南部洪涝风险大于北部洪涝风险.而快速提取洪水淹没区域范围、水量信息,取得研究区天然状态下的洪水淹没分析成果,对洪水灾情评估、救援以及资源分配有着重要意义,同时可为洪涝灾害预警和防灾减灾提供科学依据.Based on ArcGIS platform,this study extracts the high-precision DEM data,selects the factors of flood disaster risk assessment index system,and uses the methods of flood disaster risk assessment,analytic hierarchy process(AHP),weighted comprehensive evaluation as well as ArcGIS spatial analysis module to analyze four composite factors of risk,exposure,vulnerability and disaster prevention and mitigation capacity.Besides,the risk assessment and zoning of flood disasters in the counties and districts of Langfang City are conducted in terms of natural disasters and socioeconomic factors.The results show that the flood disaster comprehensive risk in the southern area is greater than that in the northern area of the city.The rapid extraction of flood inundation area and water volume information,and analysis results of flood inundation under natural state in the study area is of great significance for flood disaster assessment,rescue and material allocation,which can also provide scientific basis for flood disaster early warning and prevention.

关 键 词：洪涝灾害 洪水淹没 ARCGIS 风险评估 廊坊地区 

分 类 号：P333.2[天文地球—水文科学]