MEaSUREs Greenland Ice Mapping Project (GrIMP) Digital Elevation Model from GeoEye and WorldView Imagery, Version 2

This data set consists of an enhanced resolution digital elevation model (DEM) for the Greenland Ice Sheet, derived from sub-meter resolution, panchromatic stereoscopic imagery collected by the GeoEye-1, WorldView-1, -2, and -3 satellites operated by Maxar Technologies. The DEM was created from in-track image pairs (i.e., both images collected minutes apart along the same orbital pass) and cross-track images (i.e., from different orbits) within the in-track imaging geometry and maximum time separation criteria. The DEM is registered to ATLAS/ICESat-2 L3A Land Ice Height, Version 5 (ATL06, V5) data collected in the summers of 2019 and 2020. See Greenland Ice Mapping Project (GrIMP) for related data本数据集包含格陵兰冰盖的增强分辨率数字高程模型（DEM），该模型的数据源自马克萨尔技术公司（Maxar Technologies）运营的GeoEye-1、WorldView-1、-2及-3卫星采集的亚米级分辨率全色立体影像。 该DEM的生成数据源包括沿轨影像对（即同一轨道过境过程中相隔数分钟采集的两幅影像），以及符合沿轨成像几何与最大时间间隔准则的交轨影像（即来自不同轨道的影像）。 该DEM以2019年与2020年夏季采集的ATLAS/ICESat-2 L3A陆地冰面高度第5版（ATL06, V5）数据为基准完成配准。 相关数据可参考格陵兰冰制图项目（Greenland Ice Mapping Project, GrIMP）。