Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas
Winter water formation is examined in the Chukchi Sea for the winters of 1992C2006using a primitive equation ocean model forced by NCEP wind and surface salinity fluxderived from SSM/I thin ice thickness estimates. The model is also forced by an externalinflow of 0.8 Sv through the Bering Strait. Th...
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ftunivtasecite:oai:ecite.utas.edu.au:76869 2023-05-15T14:29:13+02:00 Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas Kawaguchi, Y Tamura, T Nishino, S Kikuchi, T Itoh, M Mitsudera, H 2011 application/pdf https://doi.org/10.1029/2010JC006606 http://ecite.utas.edu.au/76869 en eng Amer Geophysical Union http://ecite.utas.edu.au/76869/1/Kawaguchi Y, Tamura T.-2010JC006606[1].pdf http://dx.doi.org/10.1029/2010JC006606 Kawaguchi, Y and Tamura, T and Nishino, S and Kikuchi, T and Itoh, M and Mitsudera, H, Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas, Journal of Geophysical Research-Space Physics, 116, (C7) Article C07025. ISSN 2156-2202 (2011) [Refereed Article] http://ecite.utas.edu.au/76869 Earth Sciences Oceanography Physical Oceanography Refereed Article PeerReviewed 2011 ftunivtasecite https://doi.org/10.1029/2010JC006606 2019-12-13T21:43:03Z Winter water formation is examined in the Chukchi Sea for the winters of 1992C2006using a primitive equation ocean model forced by NCEP wind and surface salinity fluxderived from SSM/I thin ice thickness estimates. The model is also forced by an externalinflow of 0.8 Sv through the Bering Strait. The model successfully reproduces theoceanic circulation on the Chukchi shelf, thus providing numerous insights intobehaviors of salt\enriched water produced on the shelf. The experiments show that undernortheasterly winds, northward throughflow across Barrow Canyon is reduced. Thisresults in salinity buildup under freezing conditions and ultimately in greaterenhancement of salinity of the waters carried into the Arctic Basin. The flow and salinityenhancement of the flow through Herald Canyon is less extreme but more steady thanthrough Barrow Canyon. Together with moored salinity in the Bering Strait, the modelresults estimate the actual salinity to be 32.9 0.8 psu and 32.7 0.3 psu, respectively,for waters moving through the Barrow and Herald Canyons. Both estimates are less than33.1 psu that is typically observed for the cold halostad layer in the Canada Basin,suggesting the importance of diapycnal mixing with saltier Atlantic origin water. Article in Journal/Newspaper Arctic Basin Arctic Bering Strait canada basin Chukchi Chukchi Sea eCite UTAS (University of Tasmania) Arctic Barrow Canyon ENVELOPE(-154.000,-154.000,72.500,72.500) Bering Strait Canada Chukchi Sea Chukchi Shelf ENVELOPE(-169.167,-169.167,70.550,70.550) Journal of Geophysical Research: Oceans 116 C7 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Physical Oceanography |
spellingShingle |
Earth Sciences Oceanography Physical Oceanography Kawaguchi, Y Tamura, T Nishino, S Kikuchi, T Itoh, M Mitsudera, H Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas |
topic_facet |
Earth Sciences Oceanography Physical Oceanography |
description |
Winter water formation is examined in the Chukchi Sea for the winters of 1992C2006using a primitive equation ocean model forced by NCEP wind and surface salinity fluxderived from SSM/I thin ice thickness estimates. The model is also forced by an externalinflow of 0.8 Sv through the Bering Strait. The model successfully reproduces theoceanic circulation on the Chukchi shelf, thus providing numerous insights intobehaviors of salt\enriched water produced on the shelf. The experiments show that undernortheasterly winds, northward throughflow across Barrow Canyon is reduced. Thisresults in salinity buildup under freezing conditions and ultimately in greaterenhancement of salinity of the waters carried into the Arctic Basin. The flow and salinityenhancement of the flow through Herald Canyon is less extreme but more steady thanthrough Barrow Canyon. Together with moored salinity in the Bering Strait, the modelresults estimate the actual salinity to be 32.9 0.8 psu and 32.7 0.3 psu, respectively,for waters moving through the Barrow and Herald Canyons. Both estimates are less than33.1 psu that is typically observed for the cold halostad layer in the Canada Basin,suggesting the importance of diapycnal mixing with saltier Atlantic origin water. |
format |
Article in Journal/Newspaper |
author |
Kawaguchi, Y Tamura, T Nishino, S Kikuchi, T Itoh, M Mitsudera, H |
author_facet |
Kawaguchi, Y Tamura, T Nishino, S Kikuchi, T Itoh, M Mitsudera, H |
author_sort |
Kawaguchi, Y |
title |
Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas |
title_short |
Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas |
title_full |
Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas |
title_fullStr |
Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas |
title_full_unstemmed |
Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas |
title_sort |
numerical study of winter water formation in the chukchi sea: roles and impacts of coastal polynyas |
publisher |
Amer Geophysical Union |
publishDate |
2011 |
url |
https://doi.org/10.1029/2010JC006606 http://ecite.utas.edu.au/76869 |
long_lat |
ENVELOPE(-154.000,-154.000,72.500,72.500) ENVELOPE(-169.167,-169.167,70.550,70.550) |
geographic |
Arctic Barrow Canyon Bering Strait Canada Chukchi Sea Chukchi Shelf |
geographic_facet |
Arctic Barrow Canyon Bering Strait Canada Chukchi Sea Chukchi Shelf |
genre |
Arctic Basin Arctic Bering Strait canada basin Chukchi Chukchi Sea |
genre_facet |
Arctic Basin Arctic Bering Strait canada basin Chukchi Chukchi Sea |
op_relation |
http://ecite.utas.edu.au/76869/1/Kawaguchi Y, Tamura T.-2010JC006606[1].pdf http://dx.doi.org/10.1029/2010JC006606 Kawaguchi, Y and Tamura, T and Nishino, S and Kikuchi, T and Itoh, M and Mitsudera, H, Numerical study of winter water formation in the Chukchi Sea: Roles and impacts of coastal polynyas, Journal of Geophysical Research-Space Physics, 116, (C7) Article C07025. ISSN 2156-2202 (2011) [Refereed Article] http://ecite.utas.edu.au/76869 |
op_doi |
https://doi.org/10.1029/2010JC006606 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
116 |
container_issue |
C7 |
_version_ |
1766303290300039168 |