水利信息化Issue(1)：28-33,46,7.DOI:10.19364/j.1674-9405.2025.01.005
基于SAR遥感的海河"23·7"特大洪水东淀蓄滞洪区淹没范围动态监测及灾害评估
Dynamic monitoring and disaster assessment of Haihe River"23·7"extreme flooding in Dongdian Flood Storage Area based on SAR remote sensing
摘要
Abstract
Flood disasters pose a significant challenge for optical remote sensing due to adverse weather conditions,which hinder effective data acquisition.To rapidly and accurately extract flood inundation extents and assess regional disaster impacts,this study focused on the Dongdian Flood Storage Area in Haihe River using Sentinel-1 SAR satellite imagery before and after the"23·7"extreme flood event.A change detection method was applied to quickly extract the inundation extent and analyze the spatiotemporal characteristics of the flood.Furthermore,disaster severity and affected populations were assessed using land cover,crop distribution,and population density data.The results indicate that from July to September 2023,the Dongdian Flood Storage Area experienced severe flooding,with significant damage to croplands and a large affected population.The study demonstrates that dynamic monitoring and disaster assessment can be efficiently achieved using multi-temporal SAR imagery and change detection methods,providing critical data support for national emergency response and disaster relief efforts.关键词
SAR遥感/洪水淹没范围/变化检测/动态监测/灾害评估/东淀蓄滞洪区Key words
SAR remote sensing/flood inundation extent/change detection/dynamic monitoring/disaster assessment/Dongdian Flood Storage Area分类
天文与地球科学引用本文复制引用
陈家明,孟令奎,张文..基于SAR遥感的海河"23·7"特大洪水东淀蓄滞洪区淹没范围动态监测及灾害评估[J].水利信息化,2025,(1):28-33,46,7.基金项目
国家重点研发计划项目课题(2021YFB3900603) （2021YFB3900603）
