The Arctic Ocean carbon sink
We present observation based estimates of the transport of dissolved inorganic carbon (DIC) across the four main Arctic Ocean gateways (Davis Strait, Fram Strait, Barents Sea Opening and Bering Strait). Combining a recently derived velocity field at these boundaries with measurements of DIC, we calc...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2014
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-arctic-ocean-carbon-sink(9b5e9bc7-d699-46e2-8cb7-1fb5f760d3f7).html https://doi.org/10.1016/j.dsr.2014.01.002 |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/9b5e9bc7-d699-46e2-8cb7-1fb5f760d3f7 2023-05-15T14:24:38+02:00 The Arctic Ocean carbon sink MacGilchrist, G. A. Naveira Garabato, A. C. Tsubouchi, T. Bacon, S. Torres-Valdes, S. Azetsu-Scott, K. 2014-04 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-arctic-ocean-carbon-sink(9b5e9bc7-d699-46e2-8cb7-1fb5f760d3f7).html https://doi.org/10.1016/j.dsr.2014.01.002 eng eng info:eu-repo/semantics/restrictedAccess MacGilchrist , G A , Naveira Garabato , A C , Tsubouchi , T , Bacon , S , Torres-Valdes , S & Azetsu-Scott , K 2014 , ' The Arctic Ocean carbon sink ' , Deep Sea Research Part I: Oceanographic Research Papers , vol. 86 , pp. 39-55 . https://doi.org/10.1016/j.dsr.2014.01.002 Arctic Ocean Dissolved inorganic carbon Carbon budget Air-sea carbon dioxide flux Carbon sequestration Biological pump CO2 UPTAKE CAPACITY SEA-ICE FRAM STRAIT SURFACE-WATER SHELF DIOXIDE CIRCULATION TRANSPORTS ATLANTIC FLUXES article 2014 ftunstandrewcris https://doi.org/10.1016/j.dsr.2014.01.002 2022-10-31T06:44:19Z We present observation based estimates of the transport of dissolved inorganic carbon (DIC) across the four main Arctic Ocean gateways (Davis Strait, Fram Strait, Barents Sea Opening and Bering Strait). Combining a recently derived velocity field at these boundaries with measurements of DIC, we calculated a net summertime pan-Arctic export of 231 +/- 49 Tg C yr(-1). On an annual basis, we estimate that at least 166 +/- 60 Tg C yr(-1) of this is due to uptake of CO2 from the atmosphere, although time-dependent changes in carbon storage are not quantified. To further understand the region's role as a carbon sink, we calculated the volume-conserved net DIC transport from beneath a prescribed mixed layer depth of 50 m, referred to as 'interior transport', revealing an export of 61 +/- 23 Tg C yr(-1). Applying a carbon framework to infer the sources of interior transport implied that this export is primarily due to the sinking and remineralisation of organic matter, highlighting the importance of the biological pump. Furthermore, we qualitatively show that the present day Arctic Ocean is accumulating anthropogenic carbon beneath the mixed layer, imported in Atlantic Water. (C) 2014 The Authors. Published by Elsevier Ltd. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Barents Sea Bering Strait Davis Strait Fram Strait Sea ice University of St Andrews: Research Portal Arctic Arctic Ocean Barents Sea Bering Strait Deep Sea Research Part I: Oceanographic Research Papers 86 39 55 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Arctic Ocean Dissolved inorganic carbon Carbon budget Air-sea carbon dioxide flux Carbon sequestration Biological pump CO2 UPTAKE CAPACITY SEA-ICE FRAM STRAIT SURFACE-WATER SHELF DIOXIDE CIRCULATION TRANSPORTS ATLANTIC FLUXES |
spellingShingle |
Arctic Ocean Dissolved inorganic carbon Carbon budget Air-sea carbon dioxide flux Carbon sequestration Biological pump CO2 UPTAKE CAPACITY SEA-ICE FRAM STRAIT SURFACE-WATER SHELF DIOXIDE CIRCULATION TRANSPORTS ATLANTIC FLUXES MacGilchrist, G. A. Naveira Garabato, A. C. Tsubouchi, T. Bacon, S. Torres-Valdes, S. Azetsu-Scott, K. The Arctic Ocean carbon sink |
topic_facet |
Arctic Ocean Dissolved inorganic carbon Carbon budget Air-sea carbon dioxide flux Carbon sequestration Biological pump CO2 UPTAKE CAPACITY SEA-ICE FRAM STRAIT SURFACE-WATER SHELF DIOXIDE CIRCULATION TRANSPORTS ATLANTIC FLUXES |
description |
We present observation based estimates of the transport of dissolved inorganic carbon (DIC) across the four main Arctic Ocean gateways (Davis Strait, Fram Strait, Barents Sea Opening and Bering Strait). Combining a recently derived velocity field at these boundaries with measurements of DIC, we calculated a net summertime pan-Arctic export of 231 +/- 49 Tg C yr(-1). On an annual basis, we estimate that at least 166 +/- 60 Tg C yr(-1) of this is due to uptake of CO2 from the atmosphere, although time-dependent changes in carbon storage are not quantified. To further understand the region's role as a carbon sink, we calculated the volume-conserved net DIC transport from beneath a prescribed mixed layer depth of 50 m, referred to as 'interior transport', revealing an export of 61 +/- 23 Tg C yr(-1). Applying a carbon framework to infer the sources of interior transport implied that this export is primarily due to the sinking and remineralisation of organic matter, highlighting the importance of the biological pump. Furthermore, we qualitatively show that the present day Arctic Ocean is accumulating anthropogenic carbon beneath the mixed layer, imported in Atlantic Water. (C) 2014 The Authors. Published by Elsevier Ltd. |
format |
Article in Journal/Newspaper |
author |
MacGilchrist, G. A. Naveira Garabato, A. C. Tsubouchi, T. Bacon, S. Torres-Valdes, S. Azetsu-Scott, K. |
author_facet |
MacGilchrist, G. A. Naveira Garabato, A. C. Tsubouchi, T. Bacon, S. Torres-Valdes, S. Azetsu-Scott, K. |
author_sort |
MacGilchrist, G. A. |
title |
The Arctic Ocean carbon sink |
title_short |
The Arctic Ocean carbon sink |
title_full |
The Arctic Ocean carbon sink |
title_fullStr |
The Arctic Ocean carbon sink |
title_full_unstemmed |
The Arctic Ocean carbon sink |
title_sort |
arctic ocean carbon sink |
publishDate |
2014 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-arctic-ocean-carbon-sink(9b5e9bc7-d699-46e2-8cb7-1fb5f760d3f7).html https://doi.org/10.1016/j.dsr.2014.01.002 |
geographic |
Arctic Arctic Ocean Barents Sea Bering Strait |
geographic_facet |
Arctic Arctic Ocean Barents Sea Bering Strait |
genre |
Arctic Arctic Arctic Ocean Barents Sea Bering Strait Davis Strait Fram Strait Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Barents Sea Bering Strait Davis Strait Fram Strait Sea ice |
op_source |
MacGilchrist , G A , Naveira Garabato , A C , Tsubouchi , T , Bacon , S , Torres-Valdes , S & Azetsu-Scott , K 2014 , ' The Arctic Ocean carbon sink ' , Deep Sea Research Part I: Oceanographic Research Papers , vol. 86 , pp. 39-55 . https://doi.org/10.1016/j.dsr.2014.01.002 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2014.01.002 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
86 |
container_start_page |
39 |
op_container_end_page |
55 |
_version_ |
1766297073807785984 |