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Greenland ice sheet mass balance assessed by PROMICE (1995–2015)
Colgan, W.; Mankoff, K.D.; Kjeldsen, K.K.; Björk, A.A.; Box, J.E.; Simonsen, S.B.; Sørensen, L.S.; Khan, S.A.; Solgaard, A.M.; Forsberg, R.; Skourup, H.; Stenseng, L.; Kristensen, S.S.; Hvidegaard, S.M.; Citterio, M.; Karlsson, N.; Fettweis, X.; Ahlstrom, A.P.; Andersen, S.B.; van As, D.; Fausto, R.S. (2019). Greenland ice sheet mass balance assessed by PROMICE (1995–2015). Geological Survey of Denmark and Greenland Bulletin 43: e2019430201. https://dx.doi.org/10.34194/geusb-201943-02-01
In: Geological Survey of Denmark and Greenland Bulletin. GEOLOGICAL SOC DENMARK: Copenhagen. ISSN 1604-8156, more
Peer reviewed article  
Available in  Authors 
Author keywords
    CLIMATE CHANGE, GREENLAND, GREENLAND ICE SHEET, PROMICE, DATABASE
Authors  Top 
  • Colgan, W.
  • Mankoff, K.D.
  • Kjeldsen, K.K.
  • Björk, A.A.
  • Box, J.E.
  • Simonsen, S.B.
  • Sørensen, L.S.
  • Khan, S.A.
  • Solgaard, A.M.
  • Forsberg, R.
  • Skourup, H.
  • Stenseng, L.
  • Kristensen, S.S.
  • Hvidegaard, S.M.
  • Citterio, M.
  • Karlsson, N.
  • Fettweis, X., more
  • Ahlstrom, A.P.
  • Andersen, S.B.
  • van As, D.
  • Fausto, R.S.
Abstract
    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.
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