Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard
The Atlantic Water inflow to the Arctic Ocean is transformed and modified in the area north of Svalbard, which influences the Arctic Ocean heat and salt budget. Year-round observations are relatively sparse in this region partially covered by sea ice. We took advantage of one-year-long records of oc...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://pure.uhi.ac.uk/en/publications/c1546285-93a3-4390-8d17-f6b52923c518 https://doi.org/10.1029/2022JC018568 https://pureadmin.uhi.ac.uk/ws/files/25010628/JGR_Oceans_2022_Koenig_Atlantic_Water_Properties_Transport_and_Heat_Loss_From_Mooring_Observations_North_of_Svalbard.pdf https://onlinelibrary.wiley.com/doi/10.1029/2022JC018568 |
id |
ftuhipublicatio:oai:pure.atira.dk:publications/c1546285-93a3-4390-8d17-f6b52923c518 |
---|---|
record_format |
openpolar |
spelling |
ftuhipublicatio:oai:pure.atira.dk:publications/c1546285-93a3-4390-8d17-f6b52923c518 2024-04-28T08:08:32+00:00 Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard Koenig, Zoe Kalhagen, Kjersti Kolås, Eivind Fer, Ilker Nilsen, Frank Cottier, Finlo 2022-08-26 application/pdf https://pure.uhi.ac.uk/en/publications/c1546285-93a3-4390-8d17-f6b52923c518 https://doi.org/10.1029/2022JC018568 https://pureadmin.uhi.ac.uk/ws/files/25010628/JGR_Oceans_2022_Koenig_Atlantic_Water_Properties_Transport_and_Heat_Loss_From_Mooring_Observations_North_of_Svalbard.pdf https://onlinelibrary.wiley.com/doi/10.1029/2022JC018568 eng eng info:eu-repo/semantics/openAccess Koenig , Z , Kalhagen , K , Kolås , E , Fer , I , Nilsen , F & Cottier , F 2022 , ' Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard ' , Journal of Geophysical Research: Oceans , vol. 127 , no. 8 . https://doi.org/10.1029/2022JC018568 mooring Arctic Ocean Atlantic water climate change Svalbard variability article 2022 ftuhipublicatio https://doi.org/10.1029/2022JC018568 2024-04-04T17:16:03Z The Atlantic Water inflow to the Arctic Ocean is transformed and modified in the area north of Svalbard, which influences the Arctic Ocean heat and salt budget. Year-round observations are relatively sparse in this region partially covered by sea ice. We took advantage of one-year-long records of ocean currents and hydrography from seven moorings north of Svalbard. The moorings are organized in two arrays separated by 94 km along the path of the Atlantic Water inflow to investigate the properties, transport and heat loss of the Atlantic Water in 2018/2019. The Atlantic Water volume transport varies from 0.5 Sv (1 Sv = 106 m3s−1) in spring to 2 Sv in fall. The first mode of variation of the Atlantic Water inflow temperature is a warm/cold mode with a seasonal cycle. The second mode corresponds to a shorter time scale (6–7 days) variability in the onshore/offshore displacement of the temperature core linked to the mesoscale variability. Heat loss from the Atlantic Water in this region is estimated, for the first time using two mooring arrays and conserving the volume transport. The heat loss varies between 302 W m−2 in winter to 60 W m−2 in spring. The onshore moorings show a westward countercurrent driven by Ekman setup in spring, carrying transformed-Atlantic Water. The offshore moorings show a bottom-intensified current that covaries with the wind stress curl. These two mooring arrays allowed for a better comprehension of the structure and transformation of the slope currents north of Svalbard Article in Journal/Newspaper Arctic Arctic Ocean Climate change Sea ice Svalbard University of the Highlands and Islands: Research Database of UHI Journal of Geophysical Research: Oceans 127 8 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
mooring Arctic Ocean Atlantic water climate change Svalbard variability |
spellingShingle |
mooring Arctic Ocean Atlantic water climate change Svalbard variability Koenig, Zoe Kalhagen, Kjersti Kolås, Eivind Fer, Ilker Nilsen, Frank Cottier, Finlo Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard |
topic_facet |
mooring Arctic Ocean Atlantic water climate change Svalbard variability |
description |
The Atlantic Water inflow to the Arctic Ocean is transformed and modified in the area north of Svalbard, which influences the Arctic Ocean heat and salt budget. Year-round observations are relatively sparse in this region partially covered by sea ice. We took advantage of one-year-long records of ocean currents and hydrography from seven moorings north of Svalbard. The moorings are organized in two arrays separated by 94 km along the path of the Atlantic Water inflow to investigate the properties, transport and heat loss of the Atlantic Water in 2018/2019. The Atlantic Water volume transport varies from 0.5 Sv (1 Sv = 106 m3s−1) in spring to 2 Sv in fall. The first mode of variation of the Atlantic Water inflow temperature is a warm/cold mode with a seasonal cycle. The second mode corresponds to a shorter time scale (6–7 days) variability in the onshore/offshore displacement of the temperature core linked to the mesoscale variability. Heat loss from the Atlantic Water in this region is estimated, for the first time using two mooring arrays and conserving the volume transport. The heat loss varies between 302 W m−2 in winter to 60 W m−2 in spring. The onshore moorings show a westward countercurrent driven by Ekman setup in spring, carrying transformed-Atlantic Water. The offshore moorings show a bottom-intensified current that covaries with the wind stress curl. These two mooring arrays allowed for a better comprehension of the structure and transformation of the slope currents north of Svalbard |
format |
Article in Journal/Newspaper |
author |
Koenig, Zoe Kalhagen, Kjersti Kolås, Eivind Fer, Ilker Nilsen, Frank Cottier, Finlo |
author_facet |
Koenig, Zoe Kalhagen, Kjersti Kolås, Eivind Fer, Ilker Nilsen, Frank Cottier, Finlo |
author_sort |
Koenig, Zoe |
title |
Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard |
title_short |
Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard |
title_full |
Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard |
title_fullStr |
Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard |
title_full_unstemmed |
Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard |
title_sort |
atlantic water properties, transport and heat loss from mooring observations north of svalbard |
publishDate |
2022 |
url |
https://pure.uhi.ac.uk/en/publications/c1546285-93a3-4390-8d17-f6b52923c518 https://doi.org/10.1029/2022JC018568 https://pureadmin.uhi.ac.uk/ws/files/25010628/JGR_Oceans_2022_Koenig_Atlantic_Water_Properties_Transport_and_Heat_Loss_From_Mooring_Observations_North_of_Svalbard.pdf https://onlinelibrary.wiley.com/doi/10.1029/2022JC018568 |
genre |
Arctic Arctic Ocean Climate change Sea ice Svalbard |
genre_facet |
Arctic Arctic Ocean Climate change Sea ice Svalbard |
op_source |
Koenig , Z , Kalhagen , K , Kolås , E , Fer , I , Nilsen , F & Cottier , F 2022 , ' Atlantic Water Properties, Transport and Heat Loss From Mooring Observations North of Svalbard ' , Journal of Geophysical Research: Oceans , vol. 127 , no. 8 . https://doi.org/10.1029/2022JC018568 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2022JC018568 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
127 |
container_issue |
8 |
_version_ |
1797577285725847552 |