Greenland ice sheet mass balance assessed by PROMICE (1995–2015)

William Colgan; Kenneth Mankoff; Kristian Kjeldsen; Anders Anker Bjørk; Jason Box; Sebastian Bjerregaard Simonsen; Louise  Sørensen; Shfaqat Abbas Khan; Anne M. Solgaard; Rene Forsberg; Henriette Skourup; Lars Stenseng; Steen Kristensen; Sine Munk Hvidegaard; Michele Citterio; Nanna Bjørnholt Karlsson; Xavier Fettweis; Andreas P. Ahlstrøm; Signe Andersen; Dirk Van As; Robert Fausto

doi:10.34194/GEUSB-201943-02-01

Greenland ice sheet mass balance assessed by PROMICE (1995–2015)

William Colgan, Kenneth Mankoff, Kristian Kjeldsen, Anders Anker Bjørk, Jason Box, Sebastian Bjerregaard Simonsen, Louise Sørensen, Shfaqat Abbas Khan, Anne M. Solgaard, Rene Forsberg, Henriette Skourup, Lars Stenseng, Steen Kristensen, Sine Munk Hvidegaard, Michele Citterio, Nanna Bjørnholt Karlsson, Xavier Fettweis, Andreas P. Ahlstrøm, Signe Andersen, Dirk Van AsRobert Fausto

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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’ (Fig. 1). 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.

Originalsprog	Engelsk
Artikelnummer	e2019430201
Tidsskrift	Geological Survey of Denmark and Greenland (GEUS) Bulletin
Vol/bind	43
Antal sider	6
ISSN	1604-8156
DOI	https://doi.org/10.34194/GEUSB-201943-02-01
Status	Udgivet - jul. 2019

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Colgan, W., Mankoff, K., Kjeldsen, K., Bjørk, A. A., Box, J., Simonsen, S. B., Sørensen, L., Khan, S. A., Solgaard, A. M., Forsberg, R., Skourup, H., Stenseng, L., Kristensen, S., Hvidegaard, S. M., Citterio, M., Karlsson, N. B., Fettweis, X., Ahlstrøm, A. P., Andersen, S., ... Fausto, R. (2019). Greenland ice sheet mass balance assessed by PROMICE (1995–2015). Geological Survey of Denmark and Greenland (GEUS) Bulletin, 43, [e2019430201]. https://doi.org/10.34194/GEUSB-201943-02-01

Colgan, W, Mankoff, K, Kjeldsen, K, Bjørk, AA, Box, J, Simonsen, SB, Sørensen, L, Khan, SA, Solgaard, AM, Forsberg, R, Skourup, H, Stenseng, L, Kristensen, S, Hvidegaard, SM, Citterio, M, Karlsson, NB, Fettweis, X, Ahlstrøm, AP, Andersen, S, Van As, D & Fausto, R 2019, 'Greenland ice sheet mass balance assessed by PROMICE (1995–2015)', Geological Survey of Denmark and Greenland (GEUS) Bulletin, bind 43, e2019430201. https://doi.org/10.34194/GEUSB-201943-02-01

@article{81f5dba26bb9481ebb4d61d53d9d8de3,

title = "Greenland ice sheet mass balance assessed by PROMICE (1995–2015)",

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 (S{\o}rensen et al. 2018). We refer to this 5415 km survey as the {\textquoteleft}PROMICE perimeter{\textquoteright} (Fig. 1). 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.",

author = "William Colgan and Kenneth Mankoff and Kristian Kjeldsen and Bj{\o}rk, {Anders Anker} and Jason Box and Simonsen, {Sebastian Bjerregaard} and Louise S{\o}rensen and Khan, {Shfaqat Abbas} and Solgaard, {Anne M.} and Rene Forsberg and Henriette Skourup and Lars Stenseng and Steen Kristensen and Hvidegaard, {Sine Munk} and Michele Citterio and Karlsson, {Nanna Bj{\o}rnholt} and Xavier Fettweis and Ahlstr{\o}m, {Andreas P.} and Signe Andersen and {Van As}, Dirk and Robert Fausto",

year = "2019",

month = jul,

doi = "10.34194/GEUSB-201943-02-01",

language = "English",

volume = "43",

journal = "GEUS Bulletin",

issn = "2597-2162",

publisher = "Geological Survey of Denmark and Greenland (GEUS)",

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TY - JOUR

T1 - Greenland ice sheet mass balance assessed by PROMICE (1995–2015)

AU - Colgan, William

AU - Mankoff, Kenneth

AU - Kjeldsen, Kristian

AU - Bjørk, Anders Anker

AU - Box, Jason

AU - Simonsen, Sebastian Bjerregaard

AU - Sørensen, Louise

AU - Khan, Shfaqat Abbas

AU - Solgaard, Anne M.

AU - Forsberg, Rene

AU - Skourup, Henriette

AU - Stenseng, Lars

AU - Kristensen, Steen

AU - Hvidegaard, Sine Munk

AU - Citterio, Michele

AU - Karlsson, Nanna Bjørnholt

AU - Fettweis, Xavier

AU - Ahlstrøm, Andreas P.

AU - Andersen, Signe

AU - Van As, Dirk

AU - Fausto, Robert

PY - 2019/7

Y1 - 2019/7

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’ (Fig. 1). 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’ (Fig. 1). 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 - 2597-2162

VL - 43

JO - GEUS Bulletin

JF - GEUS Bulletin

M1 - e2019430201

ER -

Greenland ice sheet mass balance assessed by PROMICE (1995–2015)

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