Greenland ice sheet mass balance from 1840 through next week
The mass of the Greenland ice sheet is declining as mass gain from snow accumulation is exceeded by mass loss from surface meltwater runoff, marine-terminating glacier calving and submarine melting, and basal melting. Here we use the input–output (IO) method to estimate mass change from 1840 through...
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2021
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Online Access: | https://doi.org/10.5194/essd-13-5001-2021 https://essd.copernicus.org/articles/13/5001/2021/ |
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ftcopernicus:oai:publications.copernicus.org:essd94145 2023-05-15T16:21:11+02:00 Greenland ice sheet mass balance from 1840 through next week Mankoff, Kenneth D. Fettweis, Xavier Langen, Peter L. Stendel, Martin Kjeldsen, Kristian K. Karlsson, Nanna B. Noël, Brice Broeke, Michiel R. Solgaard, Anne Colgan, William Box, Jason E. Simonsen, Sebastian B. King, Michalea D. Ahlstrøm, Andreas P. Andersen, Signe Bech Fausto, Robert S. 2021-10-29 application/pdf https://doi.org/10.5194/essd-13-5001-2021 https://essd.copernicus.org/articles/13/5001/2021/ eng eng doi:10.5194/essd-13-5001-2021 https://essd.copernicus.org/articles/13/5001/2021/ eISSN: 1866-3516 Text 2021 ftcopernicus https://doi.org/10.5194/essd-13-5001-2021 2021-11-01T17:22:28Z The mass of the Greenland ice sheet is declining as mass gain from snow accumulation is exceeded by mass loss from surface meltwater runoff, marine-terminating glacier calving and submarine melting, and basal melting. Here we use the input–output (IO) method to estimate mass change from 1840 through next week. Surface mass balance (SMB) gains and losses come from a semi-empirical SMB model from 1840 through 1985 and three regional climate models (RCMs; HIRHAM/HARMONIE, Modèle Atmosphérique Régional – MAR, and RACMO – Regional Atmospheric Climate MOdel) from 1986 through next week. Additional non-SMB losses come from a marine-terminating glacier ice discharge product and a basal mass balance model. From these products we provide an annual estimate of Greenland ice sheet mass balance from 1840 through 1985 and a daily estimate at sector and region scale from 1986 through next week. This product updates daily and is the first IO product to include the basal mass balance which is a source of an additional ∼24 Gt yr −1 of mass loss. Our results demonstrate an accelerating ice-sheet-scale mass loss and general agreement (coefficient of determination, r 2 , ranges from 0.62 to 0.94) among six other products, including gravitational, volume, and other IO mass balance estimates. Results from this study are available at https://doi.org/10.22008/FK2/OHI23Z ( Mankoff et al. , 2021 ) . Text glacier Greenland Ice Sheet Copernicus Publications: E-Journals Greenland Earth System Science Data 13 10 5001 5025 |
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Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
The mass of the Greenland ice sheet is declining as mass gain from snow accumulation is exceeded by mass loss from surface meltwater runoff, marine-terminating glacier calving and submarine melting, and basal melting. Here we use the input–output (IO) method to estimate mass change from 1840 through next week. Surface mass balance (SMB) gains and losses come from a semi-empirical SMB model from 1840 through 1985 and three regional climate models (RCMs; HIRHAM/HARMONIE, Modèle Atmosphérique Régional – MAR, and RACMO – Regional Atmospheric Climate MOdel) from 1986 through next week. Additional non-SMB losses come from a marine-terminating glacier ice discharge product and a basal mass balance model. From these products we provide an annual estimate of Greenland ice sheet mass balance from 1840 through 1985 and a daily estimate at sector and region scale from 1986 through next week. This product updates daily and is the first IO product to include the basal mass balance which is a source of an additional ∼24 Gt yr −1 of mass loss. Our results demonstrate an accelerating ice-sheet-scale mass loss and general agreement (coefficient of determination, r 2 , ranges from 0.62 to 0.94) among six other products, including gravitational, volume, and other IO mass balance estimates. Results from this study are available at https://doi.org/10.22008/FK2/OHI23Z ( Mankoff et al. , 2021 ) . |
format |
Text |
author |
Mankoff, Kenneth D. Fettweis, Xavier Langen, Peter L. Stendel, Martin Kjeldsen, Kristian K. Karlsson, Nanna B. Noël, Brice Broeke, Michiel R. Solgaard, Anne Colgan, William Box, Jason E. Simonsen, Sebastian B. King, Michalea D. Ahlstrøm, Andreas P. Andersen, Signe Bech Fausto, Robert S. |
spellingShingle |
Mankoff, Kenneth D. Fettweis, Xavier Langen, Peter L. Stendel, Martin Kjeldsen, Kristian K. Karlsson, Nanna B. Noël, Brice Broeke, Michiel R. Solgaard, Anne Colgan, William Box, Jason E. Simonsen, Sebastian B. King, Michalea D. Ahlstrøm, Andreas P. Andersen, Signe Bech Fausto, Robert S. Greenland ice sheet mass balance from 1840 through next week |
author_facet |
Mankoff, Kenneth D. Fettweis, Xavier Langen, Peter L. Stendel, Martin Kjeldsen, Kristian K. Karlsson, Nanna B. Noël, Brice Broeke, Michiel R. Solgaard, Anne Colgan, William Box, Jason E. Simonsen, Sebastian B. King, Michalea D. Ahlstrøm, Andreas P. Andersen, Signe Bech Fausto, Robert S. |
author_sort |
Mankoff, Kenneth D. |
title |
Greenland ice sheet mass balance from 1840 through next week |
title_short |
Greenland ice sheet mass balance from 1840 through next week |
title_full |
Greenland ice sheet mass balance from 1840 through next week |
title_fullStr |
Greenland ice sheet mass balance from 1840 through next week |
title_full_unstemmed |
Greenland ice sheet mass balance from 1840 through next week |
title_sort |
greenland ice sheet mass balance from 1840 through next week |
publishDate |
2021 |
url |
https://doi.org/10.5194/essd-13-5001-2021 https://essd.copernicus.org/articles/13/5001/2021/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_source |
eISSN: 1866-3516 |
op_relation |
doi:10.5194/essd-13-5001-2021 https://essd.copernicus.org/articles/13/5001/2021/ |
op_doi |
https://doi.org/10.5194/essd-13-5001-2021 |
container_title |
Earth System Science Data |
container_volume |
13 |
container_issue |
10 |
container_start_page |
5001 |
op_container_end_page |
5025 |
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1766009200165519360 |