TY - JOUR
T1 - Greenland ice sheet mass balance assessed by PROMICE (1995–2015)
AU - Colgan, William
AU - Mankoff, Kenneth D.
AU - Kjeldsen, Kristian K.
AU - Bjørk, Anders A.
AU - Box, Jason E.
AU - Simonsen, Sebastian B.
AU - Sørensen, Louise S.
AU - Khan, S. Abbas
AU - Solgaard, Anne M.
AU - Forsberg, René
AU - Skourup, Henriette
AU - Stenseng, Lars
AU - Kristensen, Steen S.
AU - Hvidegaard, Sine M.
AU - Citterio, Michele
AU - Karlsson, Nanna
AU - Fettweis, Xavier
AU - Ahlstrøm, Andreas P.
AU - Andersen, Signe B.
AU - Van As, Dirk
AU - Fausto, Robert
PY - 2019
Y1 - 2019
N2 - The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) has measured ice-sheet elevation and thickness via repeat airborne surveys circumscribing the ice sheet at an average elevation of 1708 ± 5 m (Sørensen et al. 2018). We refer to this 5415 km survey as the ‘PROMICE perimeter’. Here, we assess ice-sheet mass balance following the input-output approach of Andersen et al. (2015). We estimate ice-sheet output, or the ice discharge across the ice-sheet grounding line, by applying downstream corrections to the ice flux across the PROMICE perimeter. We subtract this ice discharge from ice-sheet input, or the area-integrated, ice sheet surface mass balance, estimated by a regional climate model. While Andersen et al. (2015) assessed ice-sheet mass balance in 2007 and 2011, this updated input-output assessment now estimates the annual sea-level rise contribution from eighteen sub-sectors of the Greenland ice sheet over the 1995–2015 period.
AB - The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) has measured ice-sheet elevation and thickness via repeat airborne surveys circumscribing the ice sheet at an average elevation of 1708 ± 5 m (Sørensen et al. 2018). We refer to this 5415 km survey as the ‘PROMICE perimeter’. Here, we assess ice-sheet mass balance following the input-output approach of Andersen et al. (2015). We estimate ice-sheet output, or the ice discharge across the ice-sheet grounding line, by applying downstream corrections to the ice flux across the PROMICE perimeter. We subtract this ice discharge from ice-sheet input, or the area-integrated, ice sheet surface mass balance, estimated by a regional climate model. While Andersen et al. (2015) assessed ice-sheet mass balance in 2007 and 2011, this updated input-output assessment now estimates the annual sea-level rise contribution from eighteen sub-sectors of the Greenland ice sheet over the 1995–2015 period.
U2 - 10.34194/GEUSB-201943-02-01
DO - 10.34194/GEUSB-201943-02-01
M3 - Journal article
SN - 1604-8156
VL - 43
JO - Geological Survey of Denmark and Greenland Bulletin
JF - Geological Survey of Denmark and Greenland Bulletin
M1 - e2019430201
ER -
