鄱阳湖日尺度水体数据集（2016-2021）

使用的光学影像包括Landsat-5、7、8、9和Sentinel-2，并通过我们构建的新型水体指数——联合水体指数（Combined Water Index，CWI）进行阈值分割提取水体信息。

使用的微波影像为Sentinel-1，并采用我们构建的新型微波水体指数——新合成孔径雷达水体指数（New SAR Water Index，NSWI）进行阈值分割提取水体。

对提取的水体进行后处理，剔除面积小于0.1平方公里的零星斑块。

结合水文和气象数据，预测无观测数据的日期对应的水体信息。

The optical imagery used in this dataset includes Landsat-5, 7, 8, 9 and Sentinel-2. Water body information was extracted via threshold-based segmentation using a novel water index developed by our team, namely the Combined Water Index (CWI). The microwave imagery employed is Sentinel-1, and water bodies were extracted via threshold-based segmentation using another novel microwave water index developed by our team, namely the New SAR Water Index (NSWI). Post-processing was conducted on the extracted water bodies, with sporadic patches covering an area of less than 0.1 square kilometers being removed. Combined with hydrological and meteorological data, water body information for dates without available observation data was predicted.

搜集汇总

背景与挑战

背景概述

该数据集提供了2016-2021年鄱阳湖日尺度的水体信息，包含2192幅水体地图，时间分辨率为日，空间分辨率为10m-100m。数据集结合了光学和微波影像，使用新型水体指数（CWI和NSWI）进行水体提取，并剔除了面积小于0.1平方公里的零星斑块，同时结合水文和气象数据预测无观测日期的水体信息。