An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River
The Northeast Greenland shelf is a broad Arctic shelf located between Greenland and Fram Strait. It is the principal gateway for sea ice export and sea ice-associated freshwater from the Arctic Ocean. Sea ice thickness has decreased by 15% per decade since the early 1990s and meteoric freshwater dis...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/en/publications/049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed https://doi.org/10.1029/2022JC019052 http://www.scopus.com/inward/record.url?scp=85153847747&partnerID=8YFLogxK |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed 2024-04-28T08:07:37+00:00 An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River Willcox, E. W. Bendtsen, J. Mortensen, J. Mohn, C. Lemes, M. Pedersen, T. J. Holding, J. Møller, E. F. Sejr, M. K. Seidenkrantz, M. S. Rysgaard, S. 2023-04 https://pure.au.dk/portal/en/publications/049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed https://doi.org/10.1029/2022JC019052 http://www.scopus.com/inward/record.url?scp=85153847747&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed info:eu-repo/semantics/openAccess Willcox , E W , Bendtsen , J , Mortensen , J , Mohn , C , Lemes , M , Pedersen , T J , Holding , J , Møller , E F , Sejr , M K , Seidenkrantz , M S & Rysgaard , S 2023 , ' An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River ' , Journal of Geophysical Research: Oceans , vol. 128 , no. 4 , e2022JC019052 . https://doi.org/10.1029/2022JC019052 Arctic ocean Greenland Northeast Greenland shelf Transpolar drift water masses article 2023 ftuniaarhuspubl https://doi.org/10.1029/2022JC019052 2024-04-10T23:46:40Z The Northeast Greenland shelf is a broad Arctic shelf located between Greenland and Fram Strait. It is the principal gateway for sea ice export and sea ice-associated freshwater from the Arctic Ocean. Sea ice thickness has decreased by 15% per decade since the early 1990s and meteoric freshwater discharge has increased. The consequence of changing sea-ice and freshwater conditions in the region on ocean dynamics and the biological system remains unknown. Determining the source(s) of freshwater is important to be able to understand how the area will react to future upstream change. Here we present a synoptic survey of the Northeast Greenland shelf and slope with observations of hydrography, the nutrients nitrate, phosphate and silicate, and conservative tracers δ 18 O, δ 2 H, and total alkalinity during late summer 2017. We compare these to previously published values, including those which identify Pacific and Atlantic water, the Siberian shelf seas, and the six largest Arctic rivers. We show that a major source of freshwater on the Northeast Greenland shelf during late summer 2017 is the Laptev Sea and find no conclusive evidence of Pacific Water. Our observations indicate a direct link between Northeast Greenland hydrology and processes occurring on Eurasian shelves. Article in Journal/Newspaper Arctic Arctic Ocean Fram Strait Greenland laptev Laptev Sea lena river Sea ice Aarhus University: Research Journal of Geophysical Research: Oceans 128 4 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Arctic ocean Greenland Northeast Greenland shelf Transpolar drift water masses |
spellingShingle |
Arctic ocean Greenland Northeast Greenland shelf Transpolar drift water masses Willcox, E. W. Bendtsen, J. Mortensen, J. Mohn, C. Lemes, M. Pedersen, T. J. Holding, J. Møller, E. F. Sejr, M. K. Seidenkrantz, M. S. Rysgaard, S. An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River |
topic_facet |
Arctic ocean Greenland Northeast Greenland shelf Transpolar drift water masses |
description |
The Northeast Greenland shelf is a broad Arctic shelf located between Greenland and Fram Strait. It is the principal gateway for sea ice export and sea ice-associated freshwater from the Arctic Ocean. Sea ice thickness has decreased by 15% per decade since the early 1990s and meteoric freshwater discharge has increased. The consequence of changing sea-ice and freshwater conditions in the region on ocean dynamics and the biological system remains unknown. Determining the source(s) of freshwater is important to be able to understand how the area will react to future upstream change. Here we present a synoptic survey of the Northeast Greenland shelf and slope with observations of hydrography, the nutrients nitrate, phosphate and silicate, and conservative tracers δ 18 O, δ 2 H, and total alkalinity during late summer 2017. We compare these to previously published values, including those which identify Pacific and Atlantic water, the Siberian shelf seas, and the six largest Arctic rivers. We show that a major source of freshwater on the Northeast Greenland shelf during late summer 2017 is the Laptev Sea and find no conclusive evidence of Pacific Water. Our observations indicate a direct link between Northeast Greenland hydrology and processes occurring on Eurasian shelves. |
format |
Article in Journal/Newspaper |
author |
Willcox, E. W. Bendtsen, J. Mortensen, J. Mohn, C. Lemes, M. Pedersen, T. J. Holding, J. Møller, E. F. Sejr, M. K. Seidenkrantz, M. S. Rysgaard, S. |
author_facet |
Willcox, E. W. Bendtsen, J. Mortensen, J. Mohn, C. Lemes, M. Pedersen, T. J. Holding, J. Møller, E. F. Sejr, M. K. Seidenkrantz, M. S. Rysgaard, S. |
author_sort |
Willcox, E. W. |
title |
An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River |
title_short |
An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River |
title_full |
An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River |
title_fullStr |
An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River |
title_full_unstemmed |
An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River |
title_sort |
updated view of the water masses on the northeast greenland shelf and their link to the laptev sea and lena river |
publishDate |
2023 |
url |
https://pure.au.dk/portal/en/publications/049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed https://doi.org/10.1029/2022JC019052 http://www.scopus.com/inward/record.url?scp=85153847747&partnerID=8YFLogxK |
genre |
Arctic Arctic Ocean Fram Strait Greenland laptev Laptev Sea lena river Sea ice |
genre_facet |
Arctic Arctic Ocean Fram Strait Greenland laptev Laptev Sea lena river Sea ice |
op_source |
Willcox , E W , Bendtsen , J , Mortensen , J , Mohn , C , Lemes , M , Pedersen , T J , Holding , J , Møller , E F , Sejr , M K , Seidenkrantz , M S & Rysgaard , S 2023 , ' An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River ' , Journal of Geophysical Research: Oceans , vol. 128 , no. 4 , e2022JC019052 . https://doi.org/10.1029/2022JC019052 |
op_relation |
https://pure.au.dk/portal/en/publications/049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2022JC019052 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
128 |
container_issue |
4 |
_version_ |
1797576697959153664 |