Sea-ice thermodynamics and brine drainage
Significant changes in the state of the Arctic ice cover are occurring. As the summertime extent of sea ice diminishes, the Arctic is increasingly characterized by first-year rather than multi-year ice. It is during the early stages of ice growth that most brine is injected into the oceans, contribu...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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crroyalsociety:10.1098/rsta.2014.0166 2024-09-30T14:30:24+00:00 Sea-ice thermodynamics and brine drainage Worster, M. Grae Rees Jones, David W. 2015 http://dx.doi.org/10.1098/rsta.2014.0166 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2014.0166 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2014.0166 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 373, issue 2045, page 20140166 ISSN 1364-503X 1471-2962 journal-article 2015 crroyalsociety https://doi.org/10.1098/rsta.2014.0166 2024-09-09T06:01:30Z Significant changes in the state of the Arctic ice cover are occurring. As the summertime extent of sea ice diminishes, the Arctic is increasingly characterized by first-year rather than multi-year ice. It is during the early stages of ice growth that most brine is injected into the oceans, contributing to the buoyancy flux that mediates the thermo-haline circulation. Current operational sea-ice components of climate models often treat brine rejection between sea ice and the ocean similarly to a thermodynamic segregation process, assigning a fixed salinity to the sea ice, typical of multi-year ice. However, brine rejection is a dynamical, buoyancy-driven process and the salinity of sea ice varies significantly during the first growth season. As a result, current operational models may over predict the early brine fluxes from newly formed sea ice, which may have consequences for coupled simulations of the polar oceans. Improvements both in computational power and our understanding of the processes involved have led to the emergence of a new class of sea-ice models that treat brine rejection dynamically and should enhance predictions of the buoyancy forcing of the oceans. Article in Journal/Newspaper Arctic Sea ice The Royal Society Arctic Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373 2045 20140166 |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Significant changes in the state of the Arctic ice cover are occurring. As the summertime extent of sea ice diminishes, the Arctic is increasingly characterized by first-year rather than multi-year ice. It is during the early stages of ice growth that most brine is injected into the oceans, contributing to the buoyancy flux that mediates the thermo-haline circulation. Current operational sea-ice components of climate models often treat brine rejection between sea ice and the ocean similarly to a thermodynamic segregation process, assigning a fixed salinity to the sea ice, typical of multi-year ice. However, brine rejection is a dynamical, buoyancy-driven process and the salinity of sea ice varies significantly during the first growth season. As a result, current operational models may over predict the early brine fluxes from newly formed sea ice, which may have consequences for coupled simulations of the polar oceans. Improvements both in computational power and our understanding of the processes involved have led to the emergence of a new class of sea-ice models that treat brine rejection dynamically and should enhance predictions of the buoyancy forcing of the oceans. |
format |
Article in Journal/Newspaper |
author |
Worster, M. Grae Rees Jones, David W. |
spellingShingle |
Worster, M. Grae Rees Jones, David W. Sea-ice thermodynamics and brine drainage |
author_facet |
Worster, M. Grae Rees Jones, David W. |
author_sort |
Worster, M. Grae |
title |
Sea-ice thermodynamics and brine drainage |
title_short |
Sea-ice thermodynamics and brine drainage |
title_full |
Sea-ice thermodynamics and brine drainage |
title_fullStr |
Sea-ice thermodynamics and brine drainage |
title_full_unstemmed |
Sea-ice thermodynamics and brine drainage |
title_sort |
sea-ice thermodynamics and brine drainage |
publisher |
The Royal Society |
publishDate |
2015 |
url |
http://dx.doi.org/10.1098/rsta.2014.0166 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2014.0166 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2014.0166 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 373, issue 2045, page 20140166 ISSN 1364-503X 1471-2962 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsta.2014.0166 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
373 |
container_issue |
2045 |
container_start_page |
20140166 |
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1811635364028219392 |