Analysis of the Beaufort Gyre Freshwater Content in 2003–2018
Hydrographic data collected from research cruises, bottom‐anchored moorings, drifting Ice‐Tethered Profilers, and satellite altimetry in the Beaufort Gyre region of the Arctic Ocean document an increase of more than 6,400 km(3) of liquid freshwater content from 2003 to 2018: a 40% growth relative to...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003849/ https://doi.org/10.1029/2019JC015281 |
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ftpubmed:oai:pubmedcentral.nih.gov:7003849 2023-05-15T15:05:03+02:00 Analysis of the Beaufort Gyre Freshwater Content in 2003–2018 Proshutinsky, A. Krishfield, R. Toole, J. M. Timmermans, M.‐L. Williams, W. Zimmermann, S. Yamamoto‐Kawai, M. Armitage, T. W. K. Dukhovskoy, D. Golubeva, E. Manucharyan, G. E. Platov, G. Watanabe, E. Kikuchi, T. Nishino, S. Itoh, M. Kang, S.‐H. Cho, K.‐H. Tateyama, K. Zhao, J. 2019-12-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003849/ https://doi.org/10.1029/2019JC015281 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003849/ http://dx.doi.org/10.1029/2019JC015281 ©2019. The Authors. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Research Articles Text 2019 ftpubmed https://doi.org/10.1029/2019JC015281 2020-02-16T01:27:57Z Hydrographic data collected from research cruises, bottom‐anchored moorings, drifting Ice‐Tethered Profilers, and satellite altimetry in the Beaufort Gyre region of the Arctic Ocean document an increase of more than 6,400 km(3) of liquid freshwater content from 2003 to 2018: a 40% growth relative to the climatology of the 1970s. This fresh water accumulation is shown to result from persistent anticyclonic atmospheric wind forcing (1997–2018) accompanied by sea ice melt, a wind‐forced redirection of Mackenzie River discharge from predominantly eastward to westward flow, and a contribution of low salinity waters of Pacific Ocean origin via Bering Strait. Despite significant uncertainties in the different observations, this study has demonstrated the synergistic value of having multiple diverse datasets to obtain a more comprehensive understanding of Beaufort Gyre freshwater content variability. For example, Beaufort Gyre Observational System (BGOS) surveys clearly show the interannual increase in freshwater content, but without satellite or Ice‐Tethered Profiler measurements, it is not possible to resolve the seasonal cycle of freshwater content, which in fact is larger than the year‐to‐year variability, or the more subtle interannual variations. Text Arctic Arctic Ocean Bering Strait Mackenzie river Sea ice PubMed Central (PMC) Arctic Arctic Ocean Bering Strait Mackenzie River Pacific Journal of Geophysical Research: Oceans 124 12 9658 9689 |
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PubMed Central (PMC) |
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English |
topic |
Research Articles |
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Research Articles Proshutinsky, A. Krishfield, R. Toole, J. M. Timmermans, M.‐L. Williams, W. Zimmermann, S. Yamamoto‐Kawai, M. Armitage, T. W. K. Dukhovskoy, D. Golubeva, E. Manucharyan, G. E. Platov, G. Watanabe, E. Kikuchi, T. Nishino, S. Itoh, M. Kang, S.‐H. Cho, K.‐H. Tateyama, K. Zhao, J. Analysis of the Beaufort Gyre Freshwater Content in 2003–2018 |
topic_facet |
Research Articles |
description |
Hydrographic data collected from research cruises, bottom‐anchored moorings, drifting Ice‐Tethered Profilers, and satellite altimetry in the Beaufort Gyre region of the Arctic Ocean document an increase of more than 6,400 km(3) of liquid freshwater content from 2003 to 2018: a 40% growth relative to the climatology of the 1970s. This fresh water accumulation is shown to result from persistent anticyclonic atmospheric wind forcing (1997–2018) accompanied by sea ice melt, a wind‐forced redirection of Mackenzie River discharge from predominantly eastward to westward flow, and a contribution of low salinity waters of Pacific Ocean origin via Bering Strait. Despite significant uncertainties in the different observations, this study has demonstrated the synergistic value of having multiple diverse datasets to obtain a more comprehensive understanding of Beaufort Gyre freshwater content variability. For example, Beaufort Gyre Observational System (BGOS) surveys clearly show the interannual increase in freshwater content, but without satellite or Ice‐Tethered Profiler measurements, it is not possible to resolve the seasonal cycle of freshwater content, which in fact is larger than the year‐to‐year variability, or the more subtle interannual variations. |
format |
Text |
author |
Proshutinsky, A. Krishfield, R. Toole, J. M. Timmermans, M.‐L. Williams, W. Zimmermann, S. Yamamoto‐Kawai, M. Armitage, T. W. K. Dukhovskoy, D. Golubeva, E. Manucharyan, G. E. Platov, G. Watanabe, E. Kikuchi, T. Nishino, S. Itoh, M. Kang, S.‐H. Cho, K.‐H. Tateyama, K. Zhao, J. |
author_facet |
Proshutinsky, A. Krishfield, R. Toole, J. M. Timmermans, M.‐L. Williams, W. Zimmermann, S. Yamamoto‐Kawai, M. Armitage, T. W. K. Dukhovskoy, D. Golubeva, E. Manucharyan, G. E. Platov, G. Watanabe, E. Kikuchi, T. Nishino, S. Itoh, M. Kang, S.‐H. Cho, K.‐H. Tateyama, K. Zhao, J. |
author_sort |
Proshutinsky, A. |
title |
Analysis of the Beaufort Gyre Freshwater Content in 2003–2018 |
title_short |
Analysis of the Beaufort Gyre Freshwater Content in 2003–2018 |
title_full |
Analysis of the Beaufort Gyre Freshwater Content in 2003–2018 |
title_fullStr |
Analysis of the Beaufort Gyre Freshwater Content in 2003–2018 |
title_full_unstemmed |
Analysis of the Beaufort Gyre Freshwater Content in 2003–2018 |
title_sort |
analysis of the beaufort gyre freshwater content in 2003–2018 |
publisher |
John Wiley and Sons Inc. |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003849/ https://doi.org/10.1029/2019JC015281 |
geographic |
Arctic Arctic Ocean Bering Strait Mackenzie River Pacific |
geographic_facet |
Arctic Arctic Ocean Bering Strait Mackenzie River Pacific |
genre |
Arctic Arctic Ocean Bering Strait Mackenzie river Sea ice |
genre_facet |
Arctic Arctic Ocean Bering Strait Mackenzie river Sea ice |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003849/ http://dx.doi.org/10.1029/2019JC015281 |
op_rights |
©2019. The Authors. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2019JC015281 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
124 |
container_issue |
12 |
container_start_page |
9658 |
op_container_end_page |
9689 |
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1766336815027978240 |