Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea
peer reviewed Storfjorden, Svalbard, hosts a polynya in winter and is an important source region of Brine-enriched Shelf Water (BSW) that, if dense enough, feeds the Arctic Ocean deep water reservoir. Changes in the BSW production may thus have far-reaching impacts. We analyze the water mass distrib...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
John Wiley and Sons Inc
2023
|
Subjects: | |
Online Access: | https://orbi.uliege.be/handle/2268/313915 https://orbi.uliege.be/bitstream/2268/313915/1/JGR%20Oceans%20-%202023%20-%20Vivier%20-%20Summer%20Hydrography%20and%20Circulation%20in%20Storfjorden%20Svalbard%20Following%20a%20Record%20Low%20Winter.pdf https://doi.org/10.1029/2022JC018648 |
id |
ftorbi:oai:orbi.ulg.ac.be:2268/313915 |
---|---|
record_format |
openpolar |
spelling |
ftorbi:oai:orbi.ulg.ac.be:2268/313915 2024-10-13T14:05:03+00:00 Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea Vivier, Frédéric Lourenço, Antonio Michel, Elisabeth Skogseth, Ragnheid Rousset, Clément Lansard, Bruno Bouruet-Aubertot, Pascale Boutin, Jacqueline Bombled, Bruno Cuypers, Yannis Crispi, Olivier Dausse, Dennis Le Goff, Hervé Madec, Gurvan Vancoppenolle, Martin Van der Linden, Fanny Waelbroeck, Claire 2023 https://orbi.uliege.be/handle/2268/313915 https://orbi.uliege.be/bitstream/2268/313915/1/JGR%20Oceans%20-%202023%20-%20Vivier%20-%20Summer%20Hydrography%20and%20Circulation%20in%20Storfjorden%20Svalbard%20Following%20a%20Record%20Low%20Winter.pdf https://doi.org/10.1029/2022JC018648 en eng John Wiley and Sons Inc https://onlinelibrary.wiley.com/doi/pdf/10.1029/2022JC018648 urn:issn:2169-9275 urn:issn:2169-9291 https://orbi.uliege.be/handle/2268/313915 info:hdl:2268/313915 doi:10.1029/2022JC018648 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Journal of Geophysical Research. Oceans, 128 (2) (2023) Arctic Atlantification Barents Sea BSW Storfjord Svalbard Oceanography Geophysics Geochemistry and Petrology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Physical chemical mathematical & earth Sciences Earth sciences & physical geography Life sciences Aquatic sciences & oceanology Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Sciences du vivant Sciences aquatiques & océanologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2023 ftorbi https://doi.org/10.1029/2022JC018648 2024-09-27T07:01:55Z peer reviewed Storfjorden, Svalbard, hosts a polynya in winter and is an important source region of Brine-enriched Shelf Water (BSW) that, if dense enough, feeds the Arctic Ocean deep water reservoir. Changes in the BSW production may thus have far-reaching impacts. We analyze the water mass distribution and circulation in Storfjorden and the trough south of it, Storfjordrenna, using hydrographic sections occupied in July 2016, following a winter characterized by the lowest ice coverage recorded in the Barents Sea. These observations reveal an unusual hydrographic state, characterized at the surface by the near absence of Melt Water and Storfjorden Surface Water, replaced by a saltier water mass. At depth, BSW (maximum salinity of 34.95) was found from the bottom up to 90 m, above the 120-m deep sill at the mouth to Storfjordrenna. However, no gravity driven overflow was observed downstream of the sill: the dome of BSW remained locked over the depression in a cyclonic circulation pattern consistent with a stratified Taylor column. Observations further reveal a previously unreported intrusion of Atlantic Water (AW) far into the fjord, promoting isopycnal mixing with entrapped Arctic Water. This intrusion was possibly favored by positive wind stress curl anomalies over Svalbardbanken and Storfjordrenna. The bottom plume exiting Storfjordrenna was weak, carrying Polar Front Water rather than BSW, too light to sink underneath the AW layer at Fram Strait. Whether Storfjorden switched durably to a new hydrographic state, following the observed Atlantification of the Barents Sea after 2005, remains to be established. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Fram Strait Sea ice Storfjorden Storfjordrenna Svalbard Svalbardbanken University of Liège: ORBi (Open Repository and Bibliography) Arctic Arctic Ocean Svalbard Barents Sea Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Storfjordrenna ENVELOPE(17.000,17.000,76.000,76.000) Journal of Geophysical Research: Oceans 128 2 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Arctic Atlantification Barents Sea BSW Storfjord Svalbard Oceanography Geophysics Geochemistry and Petrology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Physical chemical mathematical & earth Sciences Earth sciences & physical geography Life sciences Aquatic sciences & oceanology Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Sciences du vivant Sciences aquatiques & océanologie |
spellingShingle |
Arctic Atlantification Barents Sea BSW Storfjord Svalbard Oceanography Geophysics Geochemistry and Petrology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Physical chemical mathematical & earth Sciences Earth sciences & physical geography Life sciences Aquatic sciences & oceanology Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Sciences du vivant Sciences aquatiques & océanologie Vivier, Frédéric Lourenço, Antonio Michel, Elisabeth Skogseth, Ragnheid Rousset, Clément Lansard, Bruno Bouruet-Aubertot, Pascale Boutin, Jacqueline Bombled, Bruno Cuypers, Yannis Crispi, Olivier Dausse, Dennis Le Goff, Hervé Madec, Gurvan Vancoppenolle, Martin Van der Linden, Fanny Waelbroeck, Claire Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea |
topic_facet |
Arctic Atlantification Barents Sea BSW Storfjord Svalbard Oceanography Geophysics Geochemistry and Petrology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Physical chemical mathematical & earth Sciences Earth sciences & physical geography Life sciences Aquatic sciences & oceanology Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Sciences du vivant Sciences aquatiques & océanologie |
description |
peer reviewed Storfjorden, Svalbard, hosts a polynya in winter and is an important source region of Brine-enriched Shelf Water (BSW) that, if dense enough, feeds the Arctic Ocean deep water reservoir. Changes in the BSW production may thus have far-reaching impacts. We analyze the water mass distribution and circulation in Storfjorden and the trough south of it, Storfjordrenna, using hydrographic sections occupied in July 2016, following a winter characterized by the lowest ice coverage recorded in the Barents Sea. These observations reveal an unusual hydrographic state, characterized at the surface by the near absence of Melt Water and Storfjorden Surface Water, replaced by a saltier water mass. At depth, BSW (maximum salinity of 34.95) was found from the bottom up to 90 m, above the 120-m deep sill at the mouth to Storfjordrenna. However, no gravity driven overflow was observed downstream of the sill: the dome of BSW remained locked over the depression in a cyclonic circulation pattern consistent with a stratified Taylor column. Observations further reveal a previously unreported intrusion of Atlantic Water (AW) far into the fjord, promoting isopycnal mixing with entrapped Arctic Water. This intrusion was possibly favored by positive wind stress curl anomalies over Svalbardbanken and Storfjordrenna. The bottom plume exiting Storfjordrenna was weak, carrying Polar Front Water rather than BSW, too light to sink underneath the AW layer at Fram Strait. Whether Storfjorden switched durably to a new hydrographic state, following the observed Atlantification of the Barents Sea after 2005, remains to be established. |
format |
Article in Journal/Newspaper |
author |
Vivier, Frédéric Lourenço, Antonio Michel, Elisabeth Skogseth, Ragnheid Rousset, Clément Lansard, Bruno Bouruet-Aubertot, Pascale Boutin, Jacqueline Bombled, Bruno Cuypers, Yannis Crispi, Olivier Dausse, Dennis Le Goff, Hervé Madec, Gurvan Vancoppenolle, Martin Van der Linden, Fanny Waelbroeck, Claire |
author_facet |
Vivier, Frédéric Lourenço, Antonio Michel, Elisabeth Skogseth, Ragnheid Rousset, Clément Lansard, Bruno Bouruet-Aubertot, Pascale Boutin, Jacqueline Bombled, Bruno Cuypers, Yannis Crispi, Olivier Dausse, Dennis Le Goff, Hervé Madec, Gurvan Vancoppenolle, Martin Van der Linden, Fanny Waelbroeck, Claire |
author_sort |
Vivier, Frédéric |
title |
Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea |
title_short |
Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea |
title_full |
Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea |
title_fullStr |
Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea |
title_full_unstemmed |
Summer Hydrography and Circulation in Storfjorden, Svalbard, Following a Record Low Winter Sea-Ice Extent in the Barents Sea |
title_sort |
summer hydrography and circulation in storfjorden, svalbard, following a record low winter sea-ice extent in the barents sea |
publisher |
John Wiley and Sons Inc |
publishDate |
2023 |
url |
https://orbi.uliege.be/handle/2268/313915 https://orbi.uliege.be/bitstream/2268/313915/1/JGR%20Oceans%20-%202023%20-%20Vivier%20-%20Summer%20Hydrography%20and%20Circulation%20in%20Storfjorden%20Svalbard%20Following%20a%20Record%20Low%20Winter.pdf https://doi.org/10.1029/2022JC018648 |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) ENVELOPE(17.000,17.000,76.000,76.000) |
geographic |
Arctic Arctic Ocean Svalbard Barents Sea Curl Storfjordrenna |
geographic_facet |
Arctic Arctic Ocean Svalbard Barents Sea Curl Storfjordrenna |
genre |
Arctic Arctic Ocean Barents Sea Fram Strait Sea ice Storfjorden Storfjordrenna Svalbard Svalbardbanken |
genre_facet |
Arctic Arctic Ocean Barents Sea Fram Strait Sea ice Storfjorden Storfjordrenna Svalbard Svalbardbanken |
op_source |
Journal of Geophysical Research. Oceans, 128 (2) (2023) |
op_relation |
https://onlinelibrary.wiley.com/doi/pdf/10.1029/2022JC018648 urn:issn:2169-9275 urn:issn:2169-9291 https://orbi.uliege.be/handle/2268/313915 info:hdl:2268/313915 doi:10.1029/2022JC018648 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2022JC018648 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
128 |
container_issue |
2 |
_version_ |
1812810925829259264 |