A first constraint on basal melt-water production of the Greenland ice sheet
The Greenland ice sheet has been one of the largest sources of sea-level rise since the early 2000s. However, basal melt has not been included explicitly in assessments of ice-sheet mass loss so far. Here, we present the first estimate of the total and regional basal melt produced by the ice sheet a...
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2021
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/a-first-constraint-on-basal-meltwater-production-of-the-greenland-ice-sheet(0fdc7569-2446-42b7-a478-ff1f0197e073).html https://doi.org/10.1038/s41467-021-23739-z https://research-repository.st-andrews.ac.uk/bitstream/10023/23403/1/Karlsson_2021_NatComm_first_constraint_CC.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/0fdc7569-2446-42b7-a478-ff1f0197e073 2024-09-15T18:09:09+00:00 A first constraint on basal melt-water production of the Greenland ice sheet Karlsson, Nanna B. Solgaard, Anne M. Mankoff, Kenneth D. Gillet-Chaulet, Fabien MacGregor, Joseph A. Box, Jason E. Citterio, Michele Colgan, William T. Larsen, Signe H. Kjeldsen, Kristian K. Korsgaard, Niels J. Benn, Douglas I. Hewitt, Ian J. Fausto, Robert S. 2021-06-08 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/a-first-constraint-on-basal-meltwater-production-of-the-greenland-ice-sheet(0fdc7569-2446-42b7-a478-ff1f0197e073).html https://doi.org/10.1038/s41467-021-23739-z https://research-repository.st-andrews.ac.uk/bitstream/10023/23403/1/Karlsson_2021_NatComm_first_constraint_CC.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/a-first-constraint-on-basal-meltwater-production-of-the-greenland-ice-sheet(0fdc7569-2446-42b7-a478-ff1f0197e073).html info:eu-repo/semantics/openAccess Karlsson , N B , Solgaard , A M , Mankoff , K D , Gillet-Chaulet , F , MacGregor , J A , Box , J E , Citterio , M , Colgan , W T , Larsen , S H , Kjeldsen , K K , Korsgaard , N J , Benn , D I , Hewitt , I J & Fausto , R S 2021 , ' A first constraint on basal melt-water production of the Greenland ice sheet ' , Nature Communications , vol. 12 , 3461 . https://doi.org/10.1038/s41467-021-23739-z article 2021 ftunstandrewcris https://doi.org/10.1038/s41467-021-23739-z 2024-08-07T23:33:25Z The Greenland ice sheet has been one of the largest sources of sea-level rise since the early 2000s. However, basal melt has not been included explicitly in assessments of ice-sheet mass loss so far. Here, we present the first estimate of the total and regional basal melt produced by the ice sheet and the recent change in basal melt through time. We find that the ice sheet’s present basal melt production is 21.4 +4.4/−4.0 Gt per year, and that melt generated by basal friction is responsible for about half of this volume. We estimate that basal melting has increased by 2.9 ± 5.2 Gt during the first decade of the 2000s. As the Arctic warms, we anticipate that basal melt will continue to increase due to faster ice flow and more surface melting thus compounding current mass loss trends, enhancing solid ice discharge, and modifying fjord circulation. Article in Journal/Newspaper Greenland Ice Sheet University of St Andrews: Research Portal Nature Communications 12 1 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
The Greenland ice sheet has been one of the largest sources of sea-level rise since the early 2000s. However, basal melt has not been included explicitly in assessments of ice-sheet mass loss so far. Here, we present the first estimate of the total and regional basal melt produced by the ice sheet and the recent change in basal melt through time. We find that the ice sheet’s present basal melt production is 21.4 +4.4/−4.0 Gt per year, and that melt generated by basal friction is responsible for about half of this volume. We estimate that basal melting has increased by 2.9 ± 5.2 Gt during the first decade of the 2000s. As the Arctic warms, we anticipate that basal melt will continue to increase due to faster ice flow and more surface melting thus compounding current mass loss trends, enhancing solid ice discharge, and modifying fjord circulation. |
format |
Article in Journal/Newspaper |
author |
Karlsson, Nanna B. Solgaard, Anne M. Mankoff, Kenneth D. Gillet-Chaulet, Fabien MacGregor, Joseph A. Box, Jason E. Citterio, Michele Colgan, William T. Larsen, Signe H. Kjeldsen, Kristian K. Korsgaard, Niels J. Benn, Douglas I. Hewitt, Ian J. Fausto, Robert S. |
spellingShingle |
Karlsson, Nanna B. Solgaard, Anne M. Mankoff, Kenneth D. Gillet-Chaulet, Fabien MacGregor, Joseph A. Box, Jason E. Citterio, Michele Colgan, William T. Larsen, Signe H. Kjeldsen, Kristian K. Korsgaard, Niels J. Benn, Douglas I. Hewitt, Ian J. Fausto, Robert S. A first constraint on basal melt-water production of the Greenland ice sheet |
author_facet |
Karlsson, Nanna B. Solgaard, Anne M. Mankoff, Kenneth D. Gillet-Chaulet, Fabien MacGregor, Joseph A. Box, Jason E. Citterio, Michele Colgan, William T. Larsen, Signe H. Kjeldsen, Kristian K. Korsgaard, Niels J. Benn, Douglas I. Hewitt, Ian J. Fausto, Robert S. |
author_sort |
Karlsson, Nanna B. |
title |
A first constraint on basal melt-water production of the Greenland ice sheet |
title_short |
A first constraint on basal melt-water production of the Greenland ice sheet |
title_full |
A first constraint on basal melt-water production of the Greenland ice sheet |
title_fullStr |
A first constraint on basal melt-water production of the Greenland ice sheet |
title_full_unstemmed |
A first constraint on basal melt-water production of the Greenland ice sheet |
title_sort |
first constraint on basal melt-water production of the greenland ice sheet |
publishDate |
2021 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/a-first-constraint-on-basal-meltwater-production-of-the-greenland-ice-sheet(0fdc7569-2446-42b7-a478-ff1f0197e073).html https://doi.org/10.1038/s41467-021-23739-z https://research-repository.st-andrews.ac.uk/bitstream/10023/23403/1/Karlsson_2021_NatComm_first_constraint_CC.pdf |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Karlsson , N B , Solgaard , A M , Mankoff , K D , Gillet-Chaulet , F , MacGregor , J A , Box , J E , Citterio , M , Colgan , W T , Larsen , S H , Kjeldsen , K K , Korsgaard , N J , Benn , D I , Hewitt , I J & Fausto , R S 2021 , ' A first constraint on basal melt-water production of the Greenland ice sheet ' , Nature Communications , vol. 12 , 3461 . https://doi.org/10.1038/s41467-021-23739-z |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/a-first-constraint-on-basal-meltwater-production-of-the-greenland-ice-sheet(0fdc7569-2446-42b7-a478-ff1f0197e073).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-021-23739-z |
container_title |
Nature Communications |
container_volume |
12 |
container_issue |
1 |
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1810446560365903872 |