Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011)
peer reviewed The current deficit in Greenland ice sheet mass balance is due to both a decrease in surface mass balance (SMB ) input and an increase in ice discharge (D ) output. While SMB processes are beginning to be well captured by observationally-constrained climate modeling, insight into D is...
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Language: | English |
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ftorbi:oai:orbi.ulg.ac.be:2268/173996 2024-04-21T08:03:18+00:00 Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011) Andersen, M.L. Stenseng, L. Skourup, H. Colgan, W. Khan, S.A. Kristensen, S.S. Andersen, S.B. Box, J.E. Ahlstrøm, A.P. Fettweis, Xavier Forsberg, R. 2015-01-01 https://orbi.uliege.be/handle/2268/173996 https://doi.org/10.1016/j.epsl.2014.10.015 en eng Elsevier Science http://www.sciencedirect.com/science/article/pii/S0012821X14006360 urn:issn:0012-821X urn:issn:1385-013X https://orbi.uliege.be/handle/2268/173996 info:hdl:2268/173996 doi:10.1016/j.epsl.2014.10.015 scopus-id:2-s2.0-84910682257 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Earth and Planetary Science Letters, 409, 89–95 (2015-01-01) Greenland ice sheet surface mass balance ice discharge Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2015 ftorbi https://doi.org/10.1016/j.epsl.2014.10.015 2024-03-27T14:53:04Z peer reviewed The current deficit in Greenland ice sheet mass balance is due to both a decrease in surface mass balance (SMB ) input and an increase in ice discharge (D ) output. While SMB processes are beginning to be well captured by observationally-constrained climate modeling, insight into D is relatively limited. We use InSAR-derived velocities, in combination with ice thickness observations, to quantify the mass flux (F ) across a flux perimeter around the ice sheet at ∼1700 m elevation. To quantify D , we correct F for SMB , as well as changes in volume due to ice dynamics, in the area downstream of the gate. Using a 1961–1990 reference climatology SMB field from the MAR regional climate model, we quantify ice sheet mass balance within eighteen basins. We find a 2007–2011 mean D of View the MathML source. We find a 2007–2011 mean total mass balance of View the MathML source, which is equal to a 0.73 mm yr−1 global sea level rise contribution. This mass loss is dominated by SMB, which accounts for 61% of mass loss in the basins where partitioning is possible. Article in Journal/Newspaper Greenland Ice Sheet University of Liège: ORBi (Open Repository and Bibliography) Earth and Planetary Science Letters 409 89 95 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Greenland ice sheet surface mass balance ice discharge Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Greenland ice sheet surface mass balance ice discharge Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Andersen, M.L. Stenseng, L. Skourup, H. Colgan, W. Khan, S.A. Kristensen, S.S. Andersen, S.B. Box, J.E. Ahlstrøm, A.P. Fettweis, Xavier Forsberg, R. Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011) |
topic_facet |
Greenland ice sheet surface mass balance ice discharge Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed The current deficit in Greenland ice sheet mass balance is due to both a decrease in surface mass balance (SMB ) input and an increase in ice discharge (D ) output. While SMB processes are beginning to be well captured by observationally-constrained climate modeling, insight into D is relatively limited. We use InSAR-derived velocities, in combination with ice thickness observations, to quantify the mass flux (F ) across a flux perimeter around the ice sheet at ∼1700 m elevation. To quantify D , we correct F for SMB , as well as changes in volume due to ice dynamics, in the area downstream of the gate. Using a 1961–1990 reference climatology SMB field from the MAR regional climate model, we quantify ice sheet mass balance within eighteen basins. We find a 2007–2011 mean D of View the MathML source. We find a 2007–2011 mean total mass balance of View the MathML source, which is equal to a 0.73 mm yr−1 global sea level rise contribution. This mass loss is dominated by SMB, which accounts for 61% of mass loss in the basins where partitioning is possible. |
format |
Article in Journal/Newspaper |
author |
Andersen, M.L. Stenseng, L. Skourup, H. Colgan, W. Khan, S.A. Kristensen, S.S. Andersen, S.B. Box, J.E. Ahlstrøm, A.P. Fettweis, Xavier Forsberg, R. |
author_facet |
Andersen, M.L. Stenseng, L. Skourup, H. Colgan, W. Khan, S.A. Kristensen, S.S. Andersen, S.B. Box, J.E. Ahlstrøm, A.P. Fettweis, Xavier Forsberg, R. |
author_sort |
Andersen, M.L. |
title |
Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011) |
title_short |
Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011) |
title_full |
Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011) |
title_fullStr |
Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011) |
title_full_unstemmed |
Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011) |
title_sort |
basin-scale partitioning of greenland ice sheet mass balance components (2007–2011) |
publisher |
Elsevier Science |
publishDate |
2015 |
url |
https://orbi.uliege.be/handle/2268/173996 https://doi.org/10.1016/j.epsl.2014.10.015 |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Earth and Planetary Science Letters, 409, 89–95 (2015-01-01) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0012821X14006360 urn:issn:0012-821X urn:issn:1385-013X https://orbi.uliege.be/handle/2268/173996 info:hdl:2268/173996 doi:10.1016/j.epsl.2014.10.015 scopus-id:2-s2.0-84910682257 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.epsl.2014.10.015 |
container_title |
Earth and Planetary Science Letters |
container_volume |
409 |
container_start_page |
89 |
op_container_end_page |
95 |
_version_ |
1796943215169896448 |