山东省沂南县洪涝水体提取及灾情综合评估数据集（2020年）

借助多源遥感数据快速准确地获取淹没水体及地物信息并进行科学有效的洪涝评估，对降低洪涝带来的危害具有十分重要的意义。 本研究利用SAR数据不受云雨天气影响等特点，通过两星协作将GF-3灾前、灾中雷达影像与Sentinel-1A灾中雷达影像结合，分别发挥其分...Rapidly and accurately acquiring information on flooded water bodies and surface features via multi-source remote sensing data and conducting scientific and effective flood disaster assessment are of critical significance for mitigating the hazards caused by flood disasters. This study leverages the advantage that Synthetic Aperture Radar (SAR) data is unaffected by cloud and rain weather. Through two-satellite collaboration, it combines the pre-disaster and during-disaster radar imagery of Gaofen-3 (GF-3) with the during-disaster radar imagery of Sentinel-1A, respectively giving full play to their respective...