Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015
As part of the N‐ICE2015 campaign, IAOOS (Ice Atmosphere Ocean Observing System) platforms gathered intensive winter data at the entrance of Atlantic Water (AW) inflow to the Arctic Ocean north of Svalbard. These data are used to examine the performance of the 1/12° resolution Mercator Ocean global...
Published in: | Journal of Geophysical Research: Oceans |
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Language: | English |
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Wiley-Blackwell Publishing Inc.
2017
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Online Access: | https://eprints.utas.edu.au/26267/ https://eprints.utas.edu.au/26267/1/Koenig%202017%20JGR.pdf |
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ftunivtasmania:oai:eprints.utas.edu.au:26267 2023-05-15T15:00:26+02:00 Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015 Koenig, Z Provost, C Villacieros-Robineau, N Sennechael, N Meyer, A Lellouche, J-M Garric, G 2017 application/pdf https://eprints.utas.edu.au/26267/ https://eprints.utas.edu.au/26267/1/Koenig%202017%20JGR.pdf en eng Wiley-Blackwell Publishing Inc. https://eprints.utas.edu.au/26267/1/Koenig%202017%20JGR.pdf Koenig, Z, Provost, C, Villacieros-Robineau, N, Sennechael, N, Meyer, A orcid:0000-0003-0447-795X , Lellouche, J-M and Garric, G 2017 , 'Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015' , Journal of Geophysical Research: Oceans, vol. 122, no. 2 , pp. 1254-1273 , doi:10.1002/2016JC012424 <http://dx.doi.org/10.1002/2016JC012424>. Arctic ocean Atlantic water inflow observations model sea-ice Yermak Pass Yermak Plateau N-ICE2015 IAOOS Mercator global model heat flux melt Article PeerReviewed 2017 ftunivtasmania https://doi.org/10.1002/2016JC012424 2021-09-06T22:17:55Z As part of the N‐ICE2015 campaign, IAOOS (Ice Atmosphere Ocean Observing System) platforms gathered intensive winter data at the entrance of Atlantic Water (AW) inflow to the Arctic Ocean north of Svalbard. These data are used to examine the performance of the 1/12° resolution Mercator Ocean global operational ice/ocean model in the marginal ice zone north of Svalbard. Modeled sea‐ice extent, ocean heat fluxes, mixed layer depths and AW mass characteristics are in good agreement with observations. Model outputs are then used to put the observations in a larger spatial and temporal context. Model outputs show that AW pathways over and around the Yermak Plateau differ in winter from summer. In winter, the large AW volume transport of the West Spitsbergen Current (WSC) (∼4 Sv) proceeds to the North East through 3 branches: the Svalbard Branch (∼0.5 Sv) along the northern shelf break of Svalbard, the Yermak Branch (∼1.1 Sv) along the western slope of the Yermak Plateau and the Yermak Pass Branch (∼2.0 Sv) through a pass in the Yermak Plateau at 80.8°N. In summer, the AW transport in the WSC is smaller (∼2 Sv) and there is no transport through the Yermak Pass. Although only eddy‐permitting in the area, the model suggests an important mesoscale activity throughout the AW flow. The large differences in ice extent between winters 2015 and 2016 follow very distinct atmospheric and oceanic conditions in the preceding summer and autumn seasons. Convection‐induced upward heat fluxes maintained the area free of ice in winter 2016. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Svalbard Yermak plateau Spitsbergen University of Tasmania: UTas ePrints Arctic Arctic Ocean Svalbard Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Journal of Geophysical Research: Oceans 122 2 1254 1273 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Arctic ocean Atlantic water inflow observations model sea-ice Yermak Pass Yermak Plateau N-ICE2015 IAOOS Mercator global model heat flux melt |
spellingShingle |
Arctic ocean Atlantic water inflow observations model sea-ice Yermak Pass Yermak Plateau N-ICE2015 IAOOS Mercator global model heat flux melt Koenig, Z Provost, C Villacieros-Robineau, N Sennechael, N Meyer, A Lellouche, J-M Garric, G Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015 |
topic_facet |
Arctic ocean Atlantic water inflow observations model sea-ice Yermak Pass Yermak Plateau N-ICE2015 IAOOS Mercator global model heat flux melt |
description |
As part of the N‐ICE2015 campaign, IAOOS (Ice Atmosphere Ocean Observing System) platforms gathered intensive winter data at the entrance of Atlantic Water (AW) inflow to the Arctic Ocean north of Svalbard. These data are used to examine the performance of the 1/12° resolution Mercator Ocean global operational ice/ocean model in the marginal ice zone north of Svalbard. Modeled sea‐ice extent, ocean heat fluxes, mixed layer depths and AW mass characteristics are in good agreement with observations. Model outputs are then used to put the observations in a larger spatial and temporal context. Model outputs show that AW pathways over and around the Yermak Plateau differ in winter from summer. In winter, the large AW volume transport of the West Spitsbergen Current (WSC) (∼4 Sv) proceeds to the North East through 3 branches: the Svalbard Branch (∼0.5 Sv) along the northern shelf break of Svalbard, the Yermak Branch (∼1.1 Sv) along the western slope of the Yermak Plateau and the Yermak Pass Branch (∼2.0 Sv) through a pass in the Yermak Plateau at 80.8°N. In summer, the AW transport in the WSC is smaller (∼2 Sv) and there is no transport through the Yermak Pass. Although only eddy‐permitting in the area, the model suggests an important mesoscale activity throughout the AW flow. The large differences in ice extent between winters 2015 and 2016 follow very distinct atmospheric and oceanic conditions in the preceding summer and autumn seasons. Convection‐induced upward heat fluxes maintained the area free of ice in winter 2016. |
format |
Article in Journal/Newspaper |
author |
Koenig, Z Provost, C Villacieros-Robineau, N Sennechael, N Meyer, A Lellouche, J-M Garric, G |
author_facet |
Koenig, Z Provost, C Villacieros-Robineau, N Sennechael, N Meyer, A Lellouche, J-M Garric, G |
author_sort |
Koenig, Z |
title |
Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015 |
title_short |
Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015 |
title_full |
Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015 |
title_fullStr |
Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015 |
title_full_unstemmed |
Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015 |
title_sort |
atlantic waters inflow north of svalbard: insights from iaoos observations and mercator ocean global operational system during n-ice2015 |
publisher |
Wiley-Blackwell Publishing Inc. |
publishDate |
2017 |
url |
https://eprints.utas.edu.au/26267/ https://eprints.utas.edu.au/26267/1/Koenig%202017%20JGR.pdf |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) |
geographic |
Arctic Arctic Ocean Svalbard Yermak Plateau |
geographic_facet |
Arctic Arctic Ocean Svalbard Yermak Plateau |
genre |
Arctic Arctic Ocean Sea ice Svalbard Yermak plateau Spitsbergen |
genre_facet |
Arctic Arctic Ocean Sea ice Svalbard Yermak plateau Spitsbergen |
op_relation |
https://eprints.utas.edu.au/26267/1/Koenig%202017%20JGR.pdf Koenig, Z, Provost, C, Villacieros-Robineau, N, Sennechael, N, Meyer, A orcid:0000-0003-0447-795X , Lellouche, J-M and Garric, G 2017 , 'Atlantic waters inflow north of Svalbard: insights from IAOOS observations and Mercator Ocean global operational system during N-ICE2015' , Journal of Geophysical Research: Oceans, vol. 122, no. 2 , pp. 1254-1273 , doi:10.1002/2016JC012424 <http://dx.doi.org/10.1002/2016JC012424>. |
op_doi |
https://doi.org/10.1002/2016JC012424 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
122 |
container_issue |
2 |
container_start_page |
1254 |
op_container_end_page |
1273 |
_version_ |
1766332546275082240 |