科技创新与应用2024，Vol.14Issue(36)：85-88,4.DOI:10.19981/j.CN23-1581/G3.2024.36.019
基于高分三号雷达影像的洪水淹没监测及影响评估
摘要
Abstract
Based on 4 scenes of high-resolution-3 radar image data before and after the No.2 flood in the Beijiang Basin in 2024,this paper uses a single threshold method to extract high-precision water body ranges in 6 key areas,and uses a multi-temporal change detection method to extract flood inundation.Range,combined with rainwater monitoring data from major river hydrological stations,the flood inundation situation is dynamically analyzed,and flood impact is analyzed using the kilometer grid data of disaster-bearing bodies of the National Natural Disaster Risk Survey.The results show that the flood inundation range extracted in this study is basically consistent with the measured water level data.The flood inundation situation in Yingde Urban area,Boluokeng temporary inundation area and Minjiang River flood storage and detention area of Qingyuan City is serious,and the population,GDP,and crops are greatly affected by inundation.The assessment results can provide scientific and technical support for flood inundation monitoring and impact assessment.关键词
高分三号/SAR影像/洪水监测/水体提取/洪水影响评估Key words
GF-3/SAR image/flood monitoring/water body extraction/flood impact assessment分类
天文与地球科学引用本文复制引用
李伟添,王留杰,杨静学,王杰..基于高分三号雷达影像的洪水淹没监测及影响评估[J].科技创新与应用,2024,14(36):85-88,4.基金项目
广东省重点领域研发计划项目(2020B0101130018) （2020B0101130018）
广东省水利科技创新项目(2022-02) （2022-02）
