ibm-esa-geospatial/ImpactMesh-Flood

ImpactMesh是一个由IBM、DLR和ESA Φ-lab发布的大规模多模态、多时间性数据集，用于洪水和野火测绘。它集成了Sentinel-1 SAR、Sentinel-2光学、Copernicus DEM以及来自Copernicus EMS的高质量注释。数据集具有多模态（SAR、光学、DEM）、多时间性（四个时间点：前一个月、前事件、事件、后事件）、全球覆盖（200多个洪水事件）、规模（80K样本）和许可证（CC-BY 4.0）等特点。

ImpactMesh is a large-scale multimodal, multitemporal dataset for flood and wildfire mapping, released by IBM, DLR, and the ESA Φ-lab. It integrates Sentinel-1 SAR, Sentinel-2 optical, Copernicus DEM, and high-quality annotations from Copernicus EMS. The dataset features multimodal (SAR, optical, DEM), multitemporal (four time steps: pre-month, pre-event, event, post-event), global coverage (200+ flood events), scale (80K samples), and license (CC-BY 4.0).