基于landsat、GF-3和Sentinel-2号卫星影像的2020年7月鄱阳湖洪水淹没范围提取数据集

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。鄱阳湖淹没范围数据为整个鄱阳湖流域的淹没范围数据，其为通过水体阈值法提取灾后及灾前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 for flood control, disaster relief decision-making and disaster loss assessment. Remote sensing data, as a critical information source for flood disaster monitoring and loss assessment, can be directly applied to extract flood inundation range information. The Poyang Lake inundation extent dataset covers the entire Poyang Lake Basin, and it is obtained by subtracting the water body ranges extracted from post-disaster and pre-disaster satellite imagery via the water body threshold method.

搜集汇总

背景与挑战

背景概述

该数据集是基于Landsat、GF-3和Sentinel-2多源卫星影像，采用水体阈值法提取的2020年7月鄱阳湖洪水淹没范围数据，覆盖整个鄱阳湖流域，为防汛救灾和灾害评估提供重要依据。