Ice/Water classification maps from study entitled "An Arctic sea ice concentration data record on a 6.25 km polar stereographic grid from 3 years of Landsat-8 imagery"

This dataset consists of ice/water classified maps from three years of Landsat-8 imagery. This dataset was used to construct the sea ice concentration map presented in the study: Jung, H-S, Lee, S-M, Kim, J-H, and Lee, K: An Arctic sea ice concentration data record on a 6.25 km polar stereographic grid from 3 years of Landsat-8 imagery, Earth Syst. Sci. Data, 17, 233-258, https://doi.org/10.5194/essd-17-233-2025, 2025. Data naming convention: {Landsat-8 original filename}.nc Data content: Name Dimension Summary Flag values time time Reference time of satellite image crs None Coordinate reference system X X X coordinate of projection Y Y Y coordinate of projection classification_map (Y, X) Ice/Water classified map [0, 1, 2] = [water, ice, mask] cloud_contamination_category time Qualitatively assessed cloud contamination label [1, 2, 3, 4] = [underestimated cloud cover, overestimated cloud cover, correctly estimated cloud cover for cloudy sky, correctly estimated cloud cover for clear sky]本数据集包含基于三年陆地卫星8号（Landsat-8）影像生成的冰/水分类地图。 本数据集用于构建本研究中提出的海冰浓度地图，相关研究文献为：Jung, H-S、Lee, S-M、Kim, J-H及Lee, K：《基于三年陆地卫星8号影像的6.25 km极射赤平投影网格北极海冰浓度数据记录》，Earth Syst. Sci. Data，17卷，233-258页，https://doi.org/10.5194/essd-17-233-2025，2025年。 数据命名规范：{Landsat-8原始文件名}.nc 数据内容： | 名称 | 维度 | 概述 | 标记值 | |------|------|------|--------| | time | time | 卫星影像的参考时间 | 无 | | crs | None | 坐标参考系统 | 无 | | X | X | 投影的X坐标 | 无 | | Y | Y | 投影的Y坐标 | 无 | | classification_map | (Y, X) | 冰/水分类地图 | [0, 1, 2] 分别对应 [水体、海冰、掩膜] | | cloud_contamination_category | time | 定性评估的云污染标签 | [1, 2, 3, 4] 分别对应 [低估云量、高估云量、云天云量估算正确、晴空云量估算正确] |