Articles | Volume 16, issue 8
https://doi.org/10.5194/tc-16-3033-2022
https://doi.org/10.5194/tc-16-3033-2022
Research article
 | 
01 Aug 2022
Research article |  | 01 Aug 2022

GBaTSv2: a revised synthesis of the likely basal thermal state of the Greenland Ice Sheet

Joseph A. MacGregor, Winnie Chu, William T. Colgan, Mark A. Fahnestock, Denis Felikson, Nanna B. Karlsson, Sophie M. J. Nowicki, and Michael Studinger

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Latest update: 26 Feb 2024
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Short summary
Where the bottom of the Greenland Ice Sheet is frozen and where it is thawed is not well known, yet knowing this state is increasingly important to interpret modern changes in ice flow there. We produced a second synthesis of knowledge of the basal thermal state of the ice sheet using airborne and satellite observations and numerical models. About one-third of the ice sheet’s bed is likely thawed; two-fifths is likely frozen; and the remainder is too uncertain to specify.