PROMICE-1980s Ice Mask

This dataset contains fractional ice cover across Greenland at 1 km and 5 km spatial resolutions. This fractional ice cover is derived from analysis of an aerophotogrammetric map of Greenland acquired mostly between 1978 and 1987. Ice cover is classified as "ice sheet" or "local ice mass", with local ice mass further classified as either "connected" or "disconnected" from the ice sheet.

本数据集包含格陵兰岛区域1 km与5 km空间分辨率下的冰盖分数覆盖率（fractional ice cover）数据。该冰盖分数覆盖率源自对主要获取于1978年至1987年间的格陵兰岛航空摄影测量图的分析结果。冰覆盖类型被划分为"大陆冰盖（ice sheet）"与"局地冰体（local ice mass）"两类，其中局地冰体还可进一步细分为"与冰盖相连"以及"与冰盖分离"两个子类。