An improved mass budget for the Greenland ice sheet
Extensive ice thickness surveys by NASA’s Operation IceBridge enable over a decade of ice discharge measurements at high precision for the majority of Greenland’s marine-terminating outlet glaciers, prompting a reassessment of the temporal and spatial distribution of glacier change. Annualmeasuremen...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/296062 2023-11-12T04:17:29+01:00 An improved mass budget for the Greenland ice sheet Enderlin, E.M. Howat, I.M. Jeong, S. Noh, M.-J. van Angelen, J.H. van den Broeke, M.R. Marine and Atmospheric Research Sub Physical Oceanography Sub Dynamics Meteorology 2014 image/pdf https://dspace.library.uu.nl/handle/1874/296062 en eng 0094-8276 https://dspace.library.uu.nl/handle/1874/296062 info:eu-repo/semantics/OpenAccess Article 2014 ftunivutrecht 2023-11-01T23:12:31Z Extensive ice thickness surveys by NASA’s Operation IceBridge enable over a decade of ice discharge measurements at high precision for the majority of Greenland’s marine-terminating outlet glaciers, prompting a reassessment of the temporal and spatial distribution of glacier change. Annualmeasurements for 178 outlet glaciers reveal that, despite widespread acceleration, only 15 glaciers accounted for 77% of the 739 ± 29 Gt of ice lost due to acceleration since 2000 and four accounted for ~50%. Among the top sources of loss are several glaciers that have received little scientific attention. The relative contribution of ice discharge to total loss decreased from 58% before 2005 to 32% between 2009 and 2012. As such, 84% of the increase in mass loss after 2009 was due to increased surface runoff. These observations support recentmodel projections that surface mass balance, rather than ice dynamics, will dominate the ice sheet’s contribution to 21st century sea level rise. Article in Journal/Newspaper glacier Greenland Ice Sheet Utrecht University Repository Greenland |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
description |
Extensive ice thickness surveys by NASA’s Operation IceBridge enable over a decade of ice discharge measurements at high precision for the majority of Greenland’s marine-terminating outlet glaciers, prompting a reassessment of the temporal and spatial distribution of glacier change. Annualmeasurements for 178 outlet glaciers reveal that, despite widespread acceleration, only 15 glaciers accounted for 77% of the 739 ± 29 Gt of ice lost due to acceleration since 2000 and four accounted for ~50%. Among the top sources of loss are several glaciers that have received little scientific attention. The relative contribution of ice discharge to total loss decreased from 58% before 2005 to 32% between 2009 and 2012. As such, 84% of the increase in mass loss after 2009 was due to increased surface runoff. These observations support recentmodel projections that surface mass balance, rather than ice dynamics, will dominate the ice sheet’s contribution to 21st century sea level rise. |
author2 |
Marine and Atmospheric Research Sub Physical Oceanography Sub Dynamics Meteorology |
format |
Article in Journal/Newspaper |
author |
Enderlin, E.M. Howat, I.M. Jeong, S. Noh, M.-J. van Angelen, J.H. van den Broeke, M.R. |
spellingShingle |
Enderlin, E.M. Howat, I.M. Jeong, S. Noh, M.-J. van Angelen, J.H. van den Broeke, M.R. An improved mass budget for the Greenland ice sheet |
author_facet |
Enderlin, E.M. Howat, I.M. Jeong, S. Noh, M.-J. van Angelen, J.H. van den Broeke, M.R. |
author_sort |
Enderlin, E.M. |
title |
An improved mass budget for the Greenland ice sheet |
title_short |
An improved mass budget for the Greenland ice sheet |
title_full |
An improved mass budget for the Greenland ice sheet |
title_fullStr |
An improved mass budget for the Greenland ice sheet |
title_full_unstemmed |
An improved mass budget for the Greenland ice sheet |
title_sort |
improved mass budget for the greenland ice sheet |
publishDate |
2014 |
url |
https://dspace.library.uu.nl/handle/1874/296062 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_relation |
0094-8276 https://dspace.library.uu.nl/handle/1874/296062 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782334357852127232 |