Arctic Ocean water mass balance from isotope data
The distributions of the oxygen 18 and tritium isotopes, and of salinity, yield a residence time of 10 years for the surface and halocline waters of the Arctic Basin. We find a yearly net production of 0.59 m of sea ice and an input of 1.16 m of freshwater from continental river runoff, local precip...
Published in: | Journal of Geophysical Research |
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Language: | English |
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1984
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Online Access: | https://hdl.handle.net/11370/1c375705-8b1c-42e2-a363-64b32601ec0a https://research.rug.nl/en/publications/1c375705-8b1c-42e2-a363-64b32601ec0a https://doi.org/10.1029/JC089iC04p06373 https://pure.rug.nl/ws/files/67046288/_stlund_et_al_1984_Journal_of_Geophysical_Research_3A_Oceans.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/1c375705-8b1c-42e2-a363-64b32601ec0a 2024-09-15T17:50:32+00:00 Arctic Ocean water mass balance from isotope data Östlund, H. Göte Hut, Gert 1984 application/pdf https://hdl.handle.net/11370/1c375705-8b1c-42e2-a363-64b32601ec0a https://research.rug.nl/en/publications/1c375705-8b1c-42e2-a363-64b32601ec0a https://doi.org/10.1029/JC089iC04p06373 https://pure.rug.nl/ws/files/67046288/_stlund_et_al_1984_Journal_of_Geophysical_Research_3A_Oceans.pdf eng eng https://research.rug.nl/en/publications/1c375705-8b1c-42e2-a363-64b32601ec0a info:eu-repo/semantics/openAccess Östlund , H G & Hut , G 1984 , ' Arctic Ocean water mass balance from isotope data ' , Journal of geophysical research-Oceans , vol. 89 , no. NC4 , pp. 6373-6381 . https://doi.org/10.1029/JC089iC04p06373 article 1984 ftunigroningenpu https://doi.org/10.1029/JC089iC04p06373 2024-06-24T15:45:03Z The distributions of the oxygen 18 and tritium isotopes, and of salinity, yield a residence time of 10 years for the surface and halocline waters of the Arctic Basin. We find a yearly net production of 0.59 m of sea ice and an input of 1.16 m of freshwater from continental river runoff, local precipitation, and Bering Strait salinity deficiency. Using the basin area value with these numbers gives long‐term average total net production and transport rates of 0.15 Sv of ice and 0.18 Sv of meteoric component, Bering Strait water not included. If, in addition, a reasonable depth profile of relative current velocity is assumed for the outflow, a yearly input of 2.8 Sv of Atlantic and Bering Strait water is needed to replenish the upper and halocline waters. These numbers should be good to ±20% and are multiyear averages. The isotope data clearly indicate that the Barents Sea is an inflow area for Atlantic water to the basin, but that net export of ice occurs there. Article in Journal/Newspaper Arctic Arctic Basin Arctic Ocean Barents Sea Bering Strait Sea ice University of Groningen research database Journal of Geophysical Research 89 C4 6373 |
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Open Polar |
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University of Groningen research database |
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ftunigroningenpu |
language |
English |
description |
The distributions of the oxygen 18 and tritium isotopes, and of salinity, yield a residence time of 10 years for the surface and halocline waters of the Arctic Basin. We find a yearly net production of 0.59 m of sea ice and an input of 1.16 m of freshwater from continental river runoff, local precipitation, and Bering Strait salinity deficiency. Using the basin area value with these numbers gives long‐term average total net production and transport rates of 0.15 Sv of ice and 0.18 Sv of meteoric component, Bering Strait water not included. If, in addition, a reasonable depth profile of relative current velocity is assumed for the outflow, a yearly input of 2.8 Sv of Atlantic and Bering Strait water is needed to replenish the upper and halocline waters. These numbers should be good to ±20% and are multiyear averages. The isotope data clearly indicate that the Barents Sea is an inflow area for Atlantic water to the basin, but that net export of ice occurs there. |
format |
Article in Journal/Newspaper |
author |
Östlund, H. Göte Hut, Gert |
spellingShingle |
Östlund, H. Göte Hut, Gert Arctic Ocean water mass balance from isotope data |
author_facet |
Östlund, H. Göte Hut, Gert |
author_sort |
Östlund, H. Göte |
title |
Arctic Ocean water mass balance from isotope data |
title_short |
Arctic Ocean water mass balance from isotope data |
title_full |
Arctic Ocean water mass balance from isotope data |
title_fullStr |
Arctic Ocean water mass balance from isotope data |
title_full_unstemmed |
Arctic Ocean water mass balance from isotope data |
title_sort |
arctic ocean water mass balance from isotope data |
publishDate |
1984 |
url |
https://hdl.handle.net/11370/1c375705-8b1c-42e2-a363-64b32601ec0a https://research.rug.nl/en/publications/1c375705-8b1c-42e2-a363-64b32601ec0a https://doi.org/10.1029/JC089iC04p06373 https://pure.rug.nl/ws/files/67046288/_stlund_et_al_1984_Journal_of_Geophysical_Research_3A_Oceans.pdf |
genre |
Arctic Arctic Basin Arctic Ocean Barents Sea Bering Strait Sea ice |
genre_facet |
Arctic Arctic Basin Arctic Ocean Barents Sea Bering Strait Sea ice |
op_source |
Östlund , H G & Hut , G 1984 , ' Arctic Ocean water mass balance from isotope data ' , Journal of geophysical research-Oceans , vol. 89 , no. NC4 , pp. 6373-6381 . https://doi.org/10.1029/JC089iC04p06373 |
op_relation |
https://research.rug.nl/en/publications/1c375705-8b1c-42e2-a363-64b32601ec0a |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/JC089iC04p06373 |
container_title |
Journal of Geophysical Research |
container_volume |
89 |
container_issue |
C4 |
container_start_page |
6373 |
_version_ |
1810292337131126784 |