2025年8月9日和8月11日甘肃省兰州市榆中县暴雨和洪涝灾害高分三号遥感影像

2025年8月起，甘肃兰州市榆中县遭遇短时强降雨，引发山洪灾害，多区域受灾。本数据集包含2025年8月9日和8月11日灾害前榆中县受灾区域高分三号卫星遥感影像数据，由高分三号卫星获取的SAR影像组成。数据具备全天候、多尺度观测能力，支持灾情评估、次生灾害监测及应急救援，提供geotiff等标准格式，为受灾前后数据分析提供可靠支撑。

Starting in August 2025, Yuzhong County, Lanzhou City, Gansu Province was struck by short-duration heavy rainfall, triggering flash flood disasters and affecting multiple regions. This dataset comprises Synthetic Aperture Radar (SAR) remote sensing imagery of the disaster-affected areas in Yuzhong County, captured by the Gaofen-3 satellite on August 9 and 11, 2025, prior to the disasters. The data offers all-weather and multi-scale observation capabilities, supporting disaster assessment, secondary disaster monitoring and emergency rescue operations. It is distributed in standard formats including GeoTIFF, providing reliable support for pre- and post-disaster data analysis.

搜集汇总

背景与挑战

背景概述

该数据集聚焦2025年8月甘肃兰州市榆中县暴雨洪涝灾害，提供8月9日和11日灾害前的高分三号SAR遥感影像。其特点是具备全天候、多尺度观测能力，支持灾情评估和应急救援，数据以geotiff等标准格式提供，为灾害前后对比分析提供可靠数据支撑。