基于InSAR和加权信息量模型法的巩义市地质灾害易发性评价  

GEOLOGICAL DISASTER SUSCEPTIBILITY ASSESSMENT IN GONGYI CITY BASED ON INSAR AND WEIGHTED INFORMATION VALUE MODEL

作　　者：彭飞 PENG Fei(Mineral Resources Exploration Center,Henan Provincial Geological Bureau,Zhengzhou 450006;Henan Engineering Research Center for Sky-Space-Ground Remote Sensing Intelligent Monitoring,Zhengzhou 450006)

机构地区：[1]河南省地质局矿产资源勘查中心,河南郑州450006 [2]河南省天空地遥感智能监测工程技术研究中心,河南郑州450006

出　　处：《云南地质》2025年第1期139-145,共7页Yunnan Geology

摘　　要：基于河南省巩义市Senlinel-1A数据进行处理,研究2021年1月至2023年12月地表形变数据,以形变信息划分量级作为易发性评价模型的评价因子,结合11个影响因子,应用信息量法构建模型,对各项因子进行归一化处理,运用层次分析法确定评价因子权重,借助ArcGIS空间分析功能,对区内地质灾害易发程度评估。细分为四个风险等级:非易发区、低易发区、中易发区以及高易发区。为相关部门制定地质灾害应对策略提供数据支持和决策依据。Sentinel-1A surface deformation data from January 2021 to December 2023 in Gongyi City,Henan Province were analyzed.Deformation magnitude was used as an evaluation factor for the susceptibility model.A weighted information value model was constructed by normalizing 11 influencing factors and determining weights via the analytic hierarchy process.Using ArcGIS spatial analysis,the area was classified into four susceptibility levels:non-susceptible,low,moderate,and high.Results provide data support for disaster response strategies.

关 键 词：地质灾害 INSAR 信息量法 层次分析法 加权信息量 易发性评价 河南巩义 

分 类 号：P694[天文地球—地质学]