Greenland supraglacial lake area time series with uncertainty assessment

The area of supraglacial lake (SGL) on Greenland ice sheet over 2017-2022 melting season has been extracted from approximately 300,000 passive optical satellite images. Each time series consists of four columns of decimal time, standard date, SGL area, and the corresponding uncertainty. The SGL area was calculated based on the SGL occurrence grids, and a total of 3006 grids with valid observations were obtained.2017至2022年融冰季期间，格陵兰冰盖表面冰面湖（supraglacial lake, SGL）的面积信息从约30万幅被动光学卫星影像中提取得到。每条时间序列数据集包含四列数据，依次为十进制时间、标准日期、冰面湖面积以及对应的不确定度。冰面湖面积基于冰面湖出现格网计算得到，最终共获取3006个有效观测格网。