The DEMs are derived several data sources including topographic maps, aerial photographs, oblique photography, remote sensing, field tracing of geomorphological features and a LiDAR DEM from 2010.
Líkönin byggja á fjarkönnunargögnum, loftmyndum, gömlum kortum, ljósmyndum, jarðfræðilegum ummerkjum á vettvangi og leysimælingu (LiDAR) jöklanna frá 2010.