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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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/seaice-thermodynamics-and-brine-drainage(a88f30c9-585e-46c4-a1e3-67ff6c6dee27).html https://doi.org/10.1098/rsta.2014.0166 |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/a88f30c9-585e-46c4-a1e3-67ff6c6dee27 2023-05-15T14:57:09+02:00 Sea-ice thermodynamics and brine drainage Worster, M. Grae Rees Jones, David W. 2015-07 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/seaice-thermodynamics-and-brine-drainage(a88f30c9-585e-46c4-a1e3-67ff6c6dee27).html https://doi.org/10.1098/rsta.2014.0166 eng eng info:eu-repo/semantics/restrictedAccess Worster , M G & Rees Jones , D W 2015 , ' Sea-ice thermodynamics and brine drainage ' , Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 373 , no. 2045 , 20140166 . https://doi.org/10.1098/rsta.2014.0166 Sea ice Brine drainage Convection Mushy layers article 2015 ftunstandrewcris https://doi.org/10.1098/rsta.2014.0166 2022-06-02T07:50:17Z 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 University of St Andrews: Research Portal Arctic Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373 2045 20140166 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Sea ice Brine drainage Convection Mushy layers |
spellingShingle |
Sea ice Brine drainage Convection Mushy layers Worster, M. Grae Rees Jones, David W. Sea-ice thermodynamics and brine drainage |
topic_facet |
Sea ice Brine drainage Convection Mushy layers |
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. |
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 |
publishDate |
2015 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/seaice-thermodynamics-and-brine-drainage(a88f30c9-585e-46c4-a1e3-67ff6c6dee27).html https://doi.org/10.1098/rsta.2014.0166 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Worster , M G & Rees Jones , D W 2015 , ' Sea-ice thermodynamics and brine drainage ' , Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 373 , no. 2045 , 20140166 . https://doi.org/10.1098/rsta.2014.0166 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
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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1766329244083814400 |