Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study)
We report sea-ice temperature and bulk salinity measurements as well as textural analysis from 33 first-year drift- and fast-ice stations sampled between November 2007 and June 2008 in the southern Beaufort Sea Amundsen Gulf, Canadian Arctic, during the International Polar Year Circumpolar Flaw Lead...
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2013
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ftvliz:oai:oma.vliz.be:238379 2023-05-15T13:22:52+02:00 Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study) Carnat, G. Papakyriakou, T. Geilfus, N.X. Brabant, F. Delille, B. Vancoppenolle, M. Gilson, G. Zhou, J. Tison, J.-L. 2013 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238379 en eng info:eu-repo/semantics/altIdentifier/wos/000325385200002 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.3189/2013JoG12J148 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238379 info:eu-repo/semantics/restrictedAccess %3Ci%3EJ.+Glaciol.+59%28217%29%3C%2Fi%3E%3A+819-837.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.3189%2F2013JoG12J148%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.3189%2F2013JoG12J148%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftvliz https://doi.org/10.3189/2013JoG12J148 2022-05-01T10:15:24Z We report sea-ice temperature and bulk salinity measurements as well as textural analysis from 33 first-year drift- and fast-ice stations sampled between November 2007 and June 2008 in the southern Beaufort Sea Amundsen Gulf, Canadian Arctic, during the International Polar Year Circumpolar Flaw Lead (IPY-CFL) system study. We use this significant dataset to investigate the halo-thermodynamic evolution of sea ice from growth to melt. A strong desalination phase is observed over a small time window in the spring. Using calculated proxies of sea-ice permeability (brine volume fraction) and of the intensity of brine convection (Rayleigh number) we demonstrate that this phase corresponds to full-depth gravity drainage initiated by a restored connectivity of the brine network with warming in the spring. Most stations had a textural sequence typical of Arctic first-year ice, with granular ice overlying columnar ice. Unusual textural features were observed sporadically: sandwiched granular ice, platelet ice and draped platelet ice. We suggest that turbulence in leads and double diffusion in strong brine plumes following the refreeze of cracks are plausible mechanisms for the formation of these textures. Article in Journal/Newspaper Amundsen Gulf Arctic Beaufort Sea International Polar Year IPY Sea ice Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Arctic Canada Journal of Glaciology 59 217 819 837 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
We report sea-ice temperature and bulk salinity measurements as well as textural analysis from 33 first-year drift- and fast-ice stations sampled between November 2007 and June 2008 in the southern Beaufort Sea Amundsen Gulf, Canadian Arctic, during the International Polar Year Circumpolar Flaw Lead (IPY-CFL) system study. We use this significant dataset to investigate the halo-thermodynamic evolution of sea ice from growth to melt. A strong desalination phase is observed over a small time window in the spring. Using calculated proxies of sea-ice permeability (brine volume fraction) and of the intensity of brine convection (Rayleigh number) we demonstrate that this phase corresponds to full-depth gravity drainage initiated by a restored connectivity of the brine network with warming in the spring. Most stations had a textural sequence typical of Arctic first-year ice, with granular ice overlying columnar ice. Unusual textural features were observed sporadically: sandwiched granular ice, platelet ice and draped platelet ice. We suggest that turbulence in leads and double diffusion in strong brine plumes following the refreeze of cracks are plausible mechanisms for the formation of these textures. |
format |
Article in Journal/Newspaper |
author |
Carnat, G. Papakyriakou, T. Geilfus, N.X. Brabant, F. Delille, B. Vancoppenolle, M. Gilson, G. Zhou, J. Tison, J.-L. |
spellingShingle |
Carnat, G. Papakyriakou, T. Geilfus, N.X. Brabant, F. Delille, B. Vancoppenolle, M. Gilson, G. Zhou, J. Tison, J.-L. Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study) |
author_facet |
Carnat, G. Papakyriakou, T. Geilfus, N.X. Brabant, F. Delille, B. Vancoppenolle, M. Gilson, G. Zhou, J. Tison, J.-L. |
author_sort |
Carnat, G. |
title |
Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study) |
title_short |
Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study) |
title_full |
Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study) |
title_fullStr |
Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study) |
title_full_unstemmed |
Investigations on physical and textural properties of Arctic first-year sea ice in the Amundsen Gulf, Canada, November 2007-June 2008 (IPY-CFL system study) |
title_sort |
investigations on physical and textural properties of arctic first-year sea ice in the amundsen gulf, canada, november 2007-june 2008 (ipy-cfl system study) |
publishDate |
2013 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238379 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Amundsen Gulf Arctic Beaufort Sea International Polar Year IPY Sea ice |
genre_facet |
Amundsen Gulf Arctic Beaufort Sea International Polar Year IPY Sea ice |
op_source |
%3Ci%3EJ.+Glaciol.+59%28217%29%3C%2Fi%3E%3A+819-837.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.3189%2F2013JoG12J148%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.3189%2F2013JoG12J148%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000325385200002 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.3189/2013JoG12J148 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238379 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3189/2013JoG12J148 |
container_title |
Journal of Glaciology |
container_volume |
59 |
container_issue |
217 |
container_start_page |
819 |
op_container_end_page |
837 |
_version_ |
1766367505261002752 |