A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection
A salt flux model which incorporates ice formation, advection and melt, as well as time-dependent brine drainage from frazil-pancake ice, has been developed for the central Greenland Sea in winter. Information from ice drifting buoys suggests that this region can be thought of as similar to a latent...
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ftuhipublicatio:oai:pure.atira.dk:publications/c3c19abb-754d-41ec-8559-497e1b015889 2024-02-04T10:00:48+01:00 A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection Wilkinson, Jeremy Wadhams, Peter 2003 https://pure.uhi.ac.uk/en/publications/c3c19abb-754d-41ec-8559-497e1b015889 https://doi.org/10.1029/2001JC001099 eng eng info:eu-repo/semantics/restrictedAccess Wilkinson , J & Wadhams , P 2003 , ' A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection ' , J GEOPHYS RES , vol. 108 , no. C5 , pp. 3147 . https://doi.org/10.1029/2001JC001099 VERTICAL CURRENTS Oceanography DEEP CONVECTION TONGUE OCEAN article 2003 ftuhipublicatio https://doi.org/10.1029/2001JC001099 2024-01-11T23:20:45Z A salt flux model which incorporates ice formation, advection and melt, as well as time-dependent brine drainage from frazil-pancake ice, has been developed for the central Greenland Sea in winter. Information from ice drifting buoys suggests that this region can be thought of as similar to a latent heat polynya, with the wind blowing newly formed sea-ice constantly in a southerly or southeasterly direction such that it melts in a different area from that of its formation. The result is a salt refinement process generating a net positive salt flux over the ice formation region, which may play an important role in stimulating deep open-ocean convection. By combining buoy data, ECMWF meteorological data and passive microwave ice concentration data the model is used to estimate the sea ice-derived salt flux over the 1996-1997 winter. Salt fluxes of over 40 kg m(-2) were obtained in the center of the region, which corresponds closely an area where a maximum depth of convection is seen in winter cruises. The model gives realistic results when compared with in situ ice and oceanographic data gathered in the region, and suggests that ice formation and drift play an important role in the preconditioning of surface waters for deep water formation events. Article in Journal/Newspaper Greenland Greenland Sea Sea ice University of the Highlands and Islands: Research Database of UHI Greenland Pancake ENVELOPE(-55.815,-55.815,52.600,52.600) Journal of Geophysical Research 108 C5 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
VERTICAL CURRENTS Oceanography DEEP CONVECTION TONGUE OCEAN |
spellingShingle |
VERTICAL CURRENTS Oceanography DEEP CONVECTION TONGUE OCEAN Wilkinson, Jeremy Wadhams, Peter A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection |
topic_facet |
VERTICAL CURRENTS Oceanography DEEP CONVECTION TONGUE OCEAN |
description |
A salt flux model which incorporates ice formation, advection and melt, as well as time-dependent brine drainage from frazil-pancake ice, has been developed for the central Greenland Sea in winter. Information from ice drifting buoys suggests that this region can be thought of as similar to a latent heat polynya, with the wind blowing newly formed sea-ice constantly in a southerly or southeasterly direction such that it melts in a different area from that of its formation. The result is a salt refinement process generating a net positive salt flux over the ice formation region, which may play an important role in stimulating deep open-ocean convection. By combining buoy data, ECMWF meteorological data and passive microwave ice concentration data the model is used to estimate the sea ice-derived salt flux over the 1996-1997 winter. Salt fluxes of over 40 kg m(-2) were obtained in the center of the region, which corresponds closely an area where a maximum depth of convection is seen in winter cruises. The model gives realistic results when compared with in situ ice and oceanographic data gathered in the region, and suggests that ice formation and drift play an important role in the preconditioning of surface waters for deep water formation events. |
format |
Article in Journal/Newspaper |
author |
Wilkinson, Jeremy Wadhams, Peter |
author_facet |
Wilkinson, Jeremy Wadhams, Peter |
author_sort |
Wilkinson, Jeremy |
title |
A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection |
title_short |
A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection |
title_full |
A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection |
title_fullStr |
A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection |
title_full_unstemmed |
A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection |
title_sort |
salt flux model for salinity change through ice production in the greenland sea, and its relationship to winter convection |
publishDate |
2003 |
url |
https://pure.uhi.ac.uk/en/publications/c3c19abb-754d-41ec-8559-497e1b015889 https://doi.org/10.1029/2001JC001099 |
long_lat |
ENVELOPE(-55.815,-55.815,52.600,52.600) |
geographic |
Greenland Pancake |
geographic_facet |
Greenland Pancake |
genre |
Greenland Greenland Sea Sea ice |
genre_facet |
Greenland Greenland Sea Sea ice |
op_source |
Wilkinson , J & Wadhams , P 2003 , ' A salt flux model for salinity change through ice production in the Greenland Sea, and its relationship to winter convection ' , J GEOPHYS RES , vol. 108 , no. C5 , pp. 3147 . https://doi.org/10.1029/2001JC001099 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2001JC001099 |
container_title |
Journal of Geophysical Research |
container_volume |
108 |
container_issue |
C5 |
_version_ |
1789966273127383040 |