Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results
The freshwater budget of the Arctic and sub-polar North Atlantic Oceans has been changing due, primarily, to increased river runoff, declining sea ice and enhanced melting of Arctic land ice. Since the mid 1990s this latter component has experienced a pronounced increase. We use a combination of sat...
Published in: | Journal of Geophysical Research: Oceans |
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Language: | English |
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2018
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Online Access: | https://hdl.handle.net/1983/aefe19da-bda5-46c0-9680-02858ba8bc35 https://research-information.bris.ac.uk/en/publications/aefe19da-bda5-46c0-9680-02858ba8bc35 https://doi.org/10.1002/2017JC013605 https://research-information.bris.ac.uk/ws/files/150990917/Bamber_et_al_2018_Journal_of_Geophysical_Research_Oceans.pdf https://doi.org/10.5285/643aa9bc-bcd6-45ad-e053-6c86abc07da0 http://globalmass.eu/changes-in-the-amount-of-freshwater-flowing-into-the-arctic-and-north-atlantic-oceans/ |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/aefe19da-bda5-46c0-9680-02858ba8bc35 2024-04-28T08:04:31+00:00 Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results Bamber, J.l. Tedstone, A.j. King, M. D. Howat, I. M. Enderlin, E. M. Van Den Broeke, M. R. Noel, B. 2018-02-20 application/pdf https://hdl.handle.net/1983/aefe19da-bda5-46c0-9680-02858ba8bc35 https://research-information.bris.ac.uk/en/publications/aefe19da-bda5-46c0-9680-02858ba8bc35 https://doi.org/10.1002/2017JC013605 https://research-information.bris.ac.uk/ws/files/150990917/Bamber_et_al_2018_Journal_of_Geophysical_Research_Oceans.pdf https://doi.org/10.5285/643aa9bc-bcd6-45ad-e053-6c86abc07da0 http://globalmass.eu/changes-in-the-amount-of-freshwater-flowing-into-the-arctic-and-north-atlantic-oceans/ eng eng info:eu-repo/grantAgreement/EC/H2020/694188 https://research-information.bris.ac.uk/en/publications/aefe19da-bda5-46c0-9680-02858ba8bc35 info:eu-repo/semantics/openAccess Bamber , J L , Tedstone , A J , King , M D , Howat , I M , Enderlin , E M , Van Den Broeke , M R & Noel , B 2018 , ' Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results ' , Journal of Geophysical Research: Oceans . https://doi.org/10.1002/2017JC013605 /dk/atira/pure/core/keywords/globalmass name=GlobalMass article 2018 ftubristolcris https://doi.org/10.1002/2017JC01360510.5285/643aa9bc-bcd6-45ad-e053-6c86abc07da0 2024-04-10T00:04:37Z The freshwater budget of the Arctic and sub-polar North Atlantic Oceans has been changing due, primarily, to increased river runoff, declining sea ice and enhanced melting of Arctic land ice. Since the mid 1990s this latter component has experienced a pronounced increase. We use a combination of satellite observations of glacier flow speed and regional climate modeling to reconstruct the land ice freshwater flux from the Greenland ice sheet and Arctic glaciers and ice caps for the period 1958-2016. The cumulative freshwater flux anomaly exceeded 6300±316 km3 by 2016. This is roughly twice the estimate of a previous analysis that did not include glaciers and ice caps outside of Greenland and which extended only to 2010. From 2010 onward, the total freshwater flux is about 1300 km3/yr, equivalent to 0.04 Sv, which is roughly 40% of the estimated total runoff to the Arctic for the same time period. Not all of this flux will reach areas of deep convection or Arctic and Sub-Arctic seas. We note, however, that the largest freshwater flux anomalies, grouped by ocean basin, are located in Baffin Bay and Davis Strait. The land ice freshwater flux displays a strong seasonal cycle with summer time values typically around five times larger than the annual mean. This will be important for understanding the impact of these fluxes on fjord circulation, stratification, and the biogeochemistry of, and nutrient delivery to, coastal waters. Article in Journal/Newspaper Arctic Arctic Baffin Bay Baffin Bay Baffin Davis Strait glacier Greenland Ice Sheet North Atlantic Sea ice University of Bristol: Bristol Research Journal of Geophysical Research: Oceans 123 3 1827 1837 |
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University of Bristol: Bristol Research |
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ftubristolcris |
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English |
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/dk/atira/pure/core/keywords/globalmass name=GlobalMass |
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/dk/atira/pure/core/keywords/globalmass name=GlobalMass Bamber, J.l. Tedstone, A.j. King, M. D. Howat, I. M. Enderlin, E. M. Van Den Broeke, M. R. Noel, B. Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results |
topic_facet |
/dk/atira/pure/core/keywords/globalmass name=GlobalMass |
description |
The freshwater budget of the Arctic and sub-polar North Atlantic Oceans has been changing due, primarily, to increased river runoff, declining sea ice and enhanced melting of Arctic land ice. Since the mid 1990s this latter component has experienced a pronounced increase. We use a combination of satellite observations of glacier flow speed and regional climate modeling to reconstruct the land ice freshwater flux from the Greenland ice sheet and Arctic glaciers and ice caps for the period 1958-2016. The cumulative freshwater flux anomaly exceeded 6300±316 km3 by 2016. This is roughly twice the estimate of a previous analysis that did not include glaciers and ice caps outside of Greenland and which extended only to 2010. From 2010 onward, the total freshwater flux is about 1300 km3/yr, equivalent to 0.04 Sv, which is roughly 40% of the estimated total runoff to the Arctic for the same time period. Not all of this flux will reach areas of deep convection or Arctic and Sub-Arctic seas. We note, however, that the largest freshwater flux anomalies, grouped by ocean basin, are located in Baffin Bay and Davis Strait. The land ice freshwater flux displays a strong seasonal cycle with summer time values typically around five times larger than the annual mean. This will be important for understanding the impact of these fluxes on fjord circulation, stratification, and the biogeochemistry of, and nutrient delivery to, coastal waters. |
format |
Article in Journal/Newspaper |
author |
Bamber, J.l. Tedstone, A.j. King, M. D. Howat, I. M. Enderlin, E. M. Van Den Broeke, M. R. Noel, B. |
author_facet |
Bamber, J.l. Tedstone, A.j. King, M. D. Howat, I. M. Enderlin, E. M. Van Den Broeke, M. R. Noel, B. |
author_sort |
Bamber, J.l. |
title |
Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results |
title_short |
Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results |
title_full |
Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results |
title_fullStr |
Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results |
title_full_unstemmed |
Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results |
title_sort |
land ice freshwater budget of the arctic and north atlantic oceans. part i: data, methods and results |
publishDate |
2018 |
url |
https://hdl.handle.net/1983/aefe19da-bda5-46c0-9680-02858ba8bc35 https://research-information.bris.ac.uk/en/publications/aefe19da-bda5-46c0-9680-02858ba8bc35 https://doi.org/10.1002/2017JC013605 https://research-information.bris.ac.uk/ws/files/150990917/Bamber_et_al_2018_Journal_of_Geophysical_Research_Oceans.pdf https://doi.org/10.5285/643aa9bc-bcd6-45ad-e053-6c86abc07da0 http://globalmass.eu/changes-in-the-amount-of-freshwater-flowing-into-the-arctic-and-north-atlantic-oceans/ |
genre |
Arctic Arctic Baffin Bay Baffin Bay Baffin Davis Strait glacier Greenland Ice Sheet North Atlantic Sea ice |
genre_facet |
Arctic Arctic Baffin Bay Baffin Bay Baffin Davis Strait glacier Greenland Ice Sheet North Atlantic Sea ice |
op_source |
Bamber , J L , Tedstone , A J , King , M D , Howat , I M , Enderlin , E M , Van Den Broeke , M R & Noel , B 2018 , ' Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans. Part I: Data, Methods and Results ' , Journal of Geophysical Research: Oceans . https://doi.org/10.1002/2017JC013605 |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/694188 https://research-information.bris.ac.uk/en/publications/aefe19da-bda5-46c0-9680-02858ba8bc35 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2017JC01360510.5285/643aa9bc-bcd6-45ad-e053-6c86abc07da0 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
123 |
container_issue |
3 |
container_start_page |
1827 |
op_container_end_page |
1837 |
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1797575140198842368 |