Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond)
The exchanges between the Nordic Seas and the Arctic Ocean are important for the ocean circulation and climate. Transports are here estimated using summer hydrographic data from the Greenland Sea and the Fram Strait. Geostrophic transports are computed from hydrographic sections at 75°N in the Green...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2016
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/524484/ https://nora.nerc.ac.uk/id/eprint/524484/1/Marnela_et_al-2016-Journal_of_Geophysical_Research__Oceans.pdf https://doi.org/10.1002/2015JC011312 |
id |
ftnerc:oai:nora.nerc.ac.uk:524484 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:524484 2023-05-15T14:58:34+02:00 Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond) Marnela, Marika Rudels, Bert Goszczko, Ilona Beszczynska‐Möller, Agnieszka Schauer, Ursula 2016-03 text http://nora.nerc.ac.uk/id/eprint/524484/ https://nora.nerc.ac.uk/id/eprint/524484/1/Marnela_et_al-2016-Journal_of_Geophysical_Research__Oceans.pdf https://doi.org/10.1002/2015JC011312 en eng https://nora.nerc.ac.uk/id/eprint/524484/1/Marnela_et_al-2016-Journal_of_Geophysical_Research__Oceans.pdf Marnela, Marika; Rudels, Bert; Goszczko, Ilona orcid:0000-0002-5719-5860 Beszczynska‐Möller, Agnieszka; Schauer, Ursula. 2016 Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond). Journal of Geophysical Research: Oceans, 121 (4). 2314-2346. https://doi.org/10.1002/2015JC011312 <https://doi.org/10.1002/2015JC011312> cc_by_4 CC-BY Publication - Article PeerReviewed 2016 ftnerc https://doi.org/10.1002/2015JC011312 2023-02-04T19:48:53Z The exchanges between the Nordic Seas and the Arctic Ocean are important for the ocean circulation and climate. Transports are here estimated using summer hydrographic data from the Greenland Sea and the Fram Strait. Geostrophic transports are computed from hydrographic sections at 75°N in the Greenland Sea and at about 79°N in the Fram Strait. Geostrophic velocities are adjusted with summer velocities derived from Argo floats, and four conservation constraints are applied to a box closed by the two sections. The estimated net volume transports are 0.8 ± 1.5 Sv southward. Net freshwater transports through the Greenland Sea section are estimated at 54 ± 20 mSv and through the Fram Strait section at 66 ± 9 mSv. Heat loss in the area between the two sections is estimated at 9 ± 12 TW. Convection depths in the Greenland Sea are estimated from observations and vary between about 200 and 2000 dbar showing no trend. Water mass properties in the Greenland Sea are affected both by convection and lateral mixing. Vertical mixing is estimated from hydrography and based on it about 1 Sv of diluted Arctic Ocean waters are estimated to enter the Greenland Sea. The properties of Atlantic, intermediate, and deep waters are studied. Deep water properties are defined using water mass triangles and are subject to decadal changes. Article in Journal/Newspaper Arctic Arctic Ocean Fram Strait Greenland Greenland Sea Nordic Seas Natural Environment Research Council: NERC Open Research Archive Arctic Arctic Ocean Greenland Journal of Geophysical Research: Oceans 121 4 2314 2346 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The exchanges between the Nordic Seas and the Arctic Ocean are important for the ocean circulation and climate. Transports are here estimated using summer hydrographic data from the Greenland Sea and the Fram Strait. Geostrophic transports are computed from hydrographic sections at 75°N in the Greenland Sea and at about 79°N in the Fram Strait. Geostrophic velocities are adjusted with summer velocities derived from Argo floats, and four conservation constraints are applied to a box closed by the two sections. The estimated net volume transports are 0.8 ± 1.5 Sv southward. Net freshwater transports through the Greenland Sea section are estimated at 54 ± 20 mSv and through the Fram Strait section at 66 ± 9 mSv. Heat loss in the area between the two sections is estimated at 9 ± 12 TW. Convection depths in the Greenland Sea are estimated from observations and vary between about 200 and 2000 dbar showing no trend. Water mass properties in the Greenland Sea are affected both by convection and lateral mixing. Vertical mixing is estimated from hydrography and based on it about 1 Sv of diluted Arctic Ocean waters are estimated to enter the Greenland Sea. The properties of Atlantic, intermediate, and deep waters are studied. Deep water properties are defined using water mass triangles and are subject to decadal changes. |
format |
Article in Journal/Newspaper |
author |
Marnela, Marika Rudels, Bert Goszczko, Ilona Beszczynska‐Möller, Agnieszka Schauer, Ursula |
spellingShingle |
Marnela, Marika Rudels, Bert Goszczko, Ilona Beszczynska‐Möller, Agnieszka Schauer, Ursula Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond) |
author_facet |
Marnela, Marika Rudels, Bert Goszczko, Ilona Beszczynska‐Möller, Agnieszka Schauer, Ursula |
author_sort |
Marnela, Marika |
title |
Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond) |
title_short |
Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond) |
title_full |
Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond) |
title_fullStr |
Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond) |
title_full_unstemmed |
Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond) |
title_sort |
fram strait and greenland sea transports, water masses, and water mass transformations 1999–2010 (and beyond) |
publishDate |
2016 |
url |
http://nora.nerc.ac.uk/id/eprint/524484/ https://nora.nerc.ac.uk/id/eprint/524484/1/Marnela_et_al-2016-Journal_of_Geophysical_Research__Oceans.pdf https://doi.org/10.1002/2015JC011312 |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Ocean Fram Strait Greenland Greenland Sea Nordic Seas |
genre_facet |
Arctic Arctic Ocean Fram Strait Greenland Greenland Sea Nordic Seas |
op_relation |
https://nora.nerc.ac.uk/id/eprint/524484/1/Marnela_et_al-2016-Journal_of_Geophysical_Research__Oceans.pdf Marnela, Marika; Rudels, Bert; Goszczko, Ilona orcid:0000-0002-5719-5860 Beszczynska‐Möller, Agnieszka; Schauer, Ursula. 2016 Fram Strait and Greenland Sea transports, water masses, and water mass transformations 1999–2010 (and beyond). Journal of Geophysical Research: Oceans, 121 (4). 2314-2346. https://doi.org/10.1002/2015JC011312 <https://doi.org/10.1002/2015JC011312> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2015JC011312 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
121 |
container_issue |
4 |
container_start_page |
2314 |
op_container_end_page |
2346 |
_version_ |
1766330710432415744 |