基于Google Earth高分辨率影像的2021年7月浙江长兴洪桥镇太湖科学实验区淹没蟹塘提取数据集

准确、科学地确定洪涝淹没范围, 是防汛救灾决策和灾害损失评估的核心任务之一。遥感数据作为洪涝灾害监测与损失评估的重要信息来源, 能够直接用于提取洪涝淹没范围信息。太湖科学实验淹没范围数据为长兴县洪桥镇靠近太湖科学实验区域的淹没范围数据，其为通过阈值法提取灾后及灾前高分三号卫星影像中水体范围后相减得到的结果。

Accurately and scientifically determining flood inundation extents is one of the core tasks of flood control, disaster relief decision-making and disaster loss assessment. Remote sensing data, as an important information source for flood disaster monitoring and loss assessment, can be directly used to extract flood inundation extent information. The Taihu Scientific Experiment flood inundation extent dataset covers the area near the Taihu Scientific Experiment region in Hongqiao Town, Changxing County. It is obtained by subtracting the water body extents extracted from post-disaster and pre-disaster Gaofen-3 satellite imagery using the thresholding method.

搜集汇总

背景与挑战

背景概述

该数据集是基于Google Earth高分辨率影像和GF-3卫星影像，通过阈值法提取的2021年7月浙江长兴洪桥镇太湖科学实验区蟹塘淹没范围数据。数据采用标准矢量格式，经过严格预处理，质量可靠，适用于洪水监测和灾害评估研究。