Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland)
The first-ever conductivity–temperature–depth (CTD) observations on the Wandel Sea shelf in northeastern Greenland were collected in April–May 2015. They were complemented by CTDs taken along the continental slope during the Norwegian FRAM 2014–2015 drift. The CTD profiles are used to reveal the ori...
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Copernicus Publications
2017
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Online Access: | https://doi.org/10.5194/os-13-1045-2017 https://www.ocean-sci.net/13/1045/2017/os-13-1045-2017.pdf https://doaj.org/article/6996153bda964902ac0bdf4a78006e78 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:6996153bda964902ac0bdf4a78006e78 2023-05-15T14:51:09+02:00 Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland) I. A. Dmitrenko S. A. Kirillov B. Rudels D. G. Babb L. T. Pedersen S. Rysgaard Y. Kristoffersen D. G. Barber 2017-12-01 https://doi.org/10.5194/os-13-1045-2017 https://www.ocean-sci.net/13/1045/2017/os-13-1045-2017.pdf https://doaj.org/article/6996153bda964902ac0bdf4a78006e78 en eng Copernicus Publications doi:10.5194/os-13-1045-2017 1812-0784 1812-0792 https://www.ocean-sci.net/13/1045/2017/os-13-1045-2017.pdf https://doaj.org/article/6996153bda964902ac0bdf4a78006e78 undefined Ocean Science, Vol 13, Pp 1045-1060 (2017) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.5194/os-13-1045-2017 2023-01-22T17:51:33Z The first-ever conductivity–temperature–depth (CTD) observations on the Wandel Sea shelf in northeastern Greenland were collected in April–May 2015. They were complemented by CTDs taken along the continental slope during the Norwegian FRAM 2014–2015 drift. The CTD profiles are used to reveal the origin of water masses and interactions with ambient water from the continental slope and the tidewater glacier outlet. The subsurface water is associated with the Pacific water outflow from the Arctic Ocean. The underlying halocline separates the Pacific water from a deeper layer of polar water that has interacted with the warm Atlantic water outflow through the Fram Strait, recorded below 140 m. Over the outer shelf, the halocline shows numerous cold density-compensated intrusions indicating lateral interaction with an ambient polar water mass across the continental slope. At the front of the tidewater glacier outlet, colder and turbid water intrusions were observed at the base of the halocline. On the temperature–salinity plots these stations indicate a mixing line that is different from the ambient water and seems to be conditioned by the ocean–glacier interaction. Our observations of Pacific water are set within the context of upstream observations in the Beaufort Sea and downstream observations from the Northeast Water Polynya, and clearly show the modification of Pacific water during its advection across the Arctic Ocean. Moreover, ambient water over the Wandel Sea slope shows different thermohaline structures indicating the different origin and pathways of the on-shore and off-shore branches of the Arctic Ocean outflow through the western Fram Strait. Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Fram Strait glacier Greenland Tidewater Wandel Sea Unknown Arctic Arctic Ocean Greenland Pacific Wandel ENVELOPE(-64.000,-64.000,-65.083,-65.083) Ocean Science 13 6 1045 1060 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
envir geo |
spellingShingle |
envir geo I. A. Dmitrenko S. A. Kirillov B. Rudels D. G. Babb L. T. Pedersen S. Rysgaard Y. Kristoffersen D. G. Barber Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland) |
topic_facet |
envir geo |
description |
The first-ever conductivity–temperature–depth (CTD) observations on the Wandel Sea shelf in northeastern Greenland were collected in April–May 2015. They were complemented by CTDs taken along the continental slope during the Norwegian FRAM 2014–2015 drift. The CTD profiles are used to reveal the origin of water masses and interactions with ambient water from the continental slope and the tidewater glacier outlet. The subsurface water is associated with the Pacific water outflow from the Arctic Ocean. The underlying halocline separates the Pacific water from a deeper layer of polar water that has interacted with the warm Atlantic water outflow through the Fram Strait, recorded below 140 m. Over the outer shelf, the halocline shows numerous cold density-compensated intrusions indicating lateral interaction with an ambient polar water mass across the continental slope. At the front of the tidewater glacier outlet, colder and turbid water intrusions were observed at the base of the halocline. On the temperature–salinity plots these stations indicate a mixing line that is different from the ambient water and seems to be conditioned by the ocean–glacier interaction. Our observations of Pacific water are set within the context of upstream observations in the Beaufort Sea and downstream observations from the Northeast Water Polynya, and clearly show the modification of Pacific water during its advection across the Arctic Ocean. Moreover, ambient water over the Wandel Sea slope shows different thermohaline structures indicating the different origin and pathways of the on-shore and off-shore branches of the Arctic Ocean outflow through the western Fram Strait. |
format |
Article in Journal/Newspaper |
author |
I. A. Dmitrenko S. A. Kirillov B. Rudels D. G. Babb L. T. Pedersen S. Rysgaard Y. Kristoffersen D. G. Barber |
author_facet |
I. A. Dmitrenko S. A. Kirillov B. Rudels D. G. Babb L. T. Pedersen S. Rysgaard Y. Kristoffersen D. G. Barber |
author_sort |
I. A. Dmitrenko |
title |
Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland) |
title_short |
Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland) |
title_full |
Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland) |
title_fullStr |
Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland) |
title_full_unstemmed |
Arctic Ocean outflow and glacier–ocean interactions modify water over the Wandel Sea shelf (northeastern Greenland) |
title_sort |
arctic ocean outflow and glacier–ocean interactions modify water over the wandel sea shelf (northeastern greenland) |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/os-13-1045-2017 https://www.ocean-sci.net/13/1045/2017/os-13-1045-2017.pdf https://doaj.org/article/6996153bda964902ac0bdf4a78006e78 |
long_lat |
ENVELOPE(-64.000,-64.000,-65.083,-65.083) |
geographic |
Arctic Arctic Ocean Greenland Pacific Wandel |
geographic_facet |
Arctic Arctic Ocean Greenland Pacific Wandel |
genre |
Arctic Arctic Ocean Beaufort Sea Fram Strait glacier Greenland Tidewater Wandel Sea |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Fram Strait glacier Greenland Tidewater Wandel Sea |
op_source |
Ocean Science, Vol 13, Pp 1045-1060 (2017) |
op_relation |
doi:10.5194/os-13-1045-2017 1812-0784 1812-0792 https://www.ocean-sci.net/13/1045/2017/os-13-1045-2017.pdf https://doaj.org/article/6996153bda964902ac0bdf4a78006e78 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/os-13-1045-2017 |
container_title |
Ocean Science |
container_volume |
13 |
container_issue |
6 |
container_start_page |
1045 |
op_container_end_page |
1060 |
_version_ |
1766322212318478336 |