High-resolution ice thickness and bed topography of a land-terminating section of the Greenland Ice Sheet, with links to GeoTIFFs and text files

• Main Authors: Lindbäck, Katrin, Pettersson, Rickard, Doyle, Samuel H, Helanow, Christian, Jansson, Peter, Kristensen, Steen Savstrup, Stenseng, Lars, Forsberg, René, Hubbard, Alun L
• Format: Dataset
• Language: English
• Published: PANGAEA 2014
• Subjects: File name; Greenland; South-West; Isunnguata_Sermia_Glacier; SAT; Satellite remote sensing; Uniform resource locator/link to file; Isunnguata Sermia; Ørkendalen; glacier; Ice Sheet
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.830314; https://doi.org/10.1594/PANGAEA.830314

We present ice thickness and bed topography maps with a high spatial resolution (250-500 m) of a land-terminating section of the Greenland Ice Sheet derived from ground-based and airborne radar surveys. The data have a total area of ~12 000 km^2 and cover the whole ablation area of the outlet glaciers of Isunnguata Sermia, Russell, Leverett, Ørkendalen and Isorlersuup up to the long-term mass balance equilibrium line altitude at ~1600 m above sea level. The bed topography shows highly variable subglacial trough systems, and the trough of Isunnguata Sermia Glacier is overdeepened and reaches an elevation of ~500 m below sea level. The ice surface is smooth and only reflects the bedrock topography in a subtle way, resulting in a highly variable ice thickness. The southern part of our study area consists of higher bed elevations compared to the northern part. The compiled data sets of ground-based and airborne radar surveys cover one of the most studied regions of the Greenland Ice Sheet and can be valuable for detailed studies of ice sheet dynamics and hydrology.