长江科学院院报2024，Vol.41Issue(12)：189-195,201,8.DOI:10.11988/ckyyb.20240793
基于国产高分三号星座的洪涝灾害应急监测模式研究
Flood Disaster Emergency Monitoring Based on China's Gaofen-3 Satellite:Application to Tuanzhou Embankment Breach in Dongting Lake Area
摘要
Abstract
To swiftly and efficiently monitor and assess the dynamics of flood disasters under emergency conditions,this study introduces a flood disaster emergency monitoring model based on China's Gaofen-3 satellite time-series data.This model offers a rapid and effective method for pre-disaster breach warnings,disaster response,and post-disaster loss assessment.In response to the imminent threat posed by the Tuanzhou Embankment breach on July 5,2024,we conducted emergency remotely-sensed monitoring by using daily image time series data before and after the breach.According to water body extraction and changes detected before and after flooding,we found that the water area in farmlands surrounding the breach experienced a significant increase the day before the dike burst.From 10 a.m.on July 4,2024,to 11 a.m.on July 5,2024,the embankment underwent evident seepage process.By the morning of July 6,2024,the Tuanzhou Embankment was almost entirely submerged,with only the rooftops of houses along the main road remaining above water.From July 8th to 15th,the water gradually receded.The find-ings indicate that Gaofen-3 data can help effectively monitor the entire disaster evolution process at high spatial and temporal resolutions before,during,and after dike breach,providing crucial data support for pre-disaster early warning,emergency rescue,and post-disaster loss assessment.关键词
洪涝灾害/应急监测模式/国产高分三号星座/洞庭湖区团洲垸/SARKey words
flood disaster/emergency monitoring mode/China's Gaofen-3 Satellite/Tuanzhou embankment in Dongting Lake area/SAR分类
天文与地球科学引用本文复制引用
陈喆,向大享,姜莹,程学军,李经纬..基于国产高分三号星座的洪涝灾害应急监测模式研究[J].长江科学院院报,2024,41(12):189-195,201,8.基金项目
中央级公益性科研院所基本科研业务费项目(CKSF2023403/KJ) （CKSF2023403/KJ）
湖北省自然科学基金项目(2022CFD173) （2022CFD173）
湖南省水利科技项目(XSKJ2022068-12) （XSKJ2022068-12）
