Towards an improved organic carbon budget for the western Barents Sea shelf
There is generally a lack of knowledge on how marine organic carbon accumulation is linked to vertical export and primary productivity patterns in the Arctic Ocean. Despite the fact that annual primary production in the Arctic has increased as a consequence of shrinking sea ice, its effect on flux,...
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Copernicus Publications
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fttriple:oai:gotriple.eu:oai:doaj.org/article:0086105cba2d4d679e23ab8532cea7ed 2023-05-15T14:57:52+02:00 Towards an improved organic carbon budget for the western Barents Sea shelf I. Pathirana J. Knies M. Felix U. Mann 2014-03-01 https://doi.org/10.5194/cp-10-569-2014 http://www.clim-past.net/10/569/2014/cp-10-569-2014.pdf https://doaj.org/article/0086105cba2d4d679e23ab8532cea7ed en eng Copernicus Publications 1814-9324 1814-9332 doi:10.5194/cp-10-569-2014 http://www.clim-past.net/10/569/2014/cp-10-569-2014.pdf https://doaj.org/article/0086105cba2d4d679e23ab8532cea7ed undefined Climate of the Past, Vol 10, Iss 2, Pp 569-587 (2014) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2014 fttriple https://doi.org/10.5194/cp-10-569-2014 2023-01-22T17:32:51Z There is generally a lack of knowledge on how marine organic carbon accumulation is linked to vertical export and primary productivity patterns in the Arctic Ocean. Despite the fact that annual primary production in the Arctic has increased as a consequence of shrinking sea ice, its effect on flux, preservation, and accumulation of organic carbon is still not well understood. In this study, a multi-proxy geochemical and organic-sedimentological approach is coupled with organic facies modelling, focusing on regional calculations of carbon cycling and carbon burial on the western Barents Shelf between northern Scandinavia and Svalbard. OF-Mod 3-D, an organic facies modelling software tool, is used to reconstruct and quantify the marine and terrestrial organic carbon fractions and to make inferences about marine primary productivity changes across the marginal ice zone (MIZ). By calibrating the model against an extensive set of sediment surface samples, we improve the Holocene organic carbon budget for ice-free and seasonally ice-covered areas in the western Barents Sea. The results show that higher organic carbon accumulation rates in the MIZ are best explained by enhanced surface water productivity compared to ice-free regions, implying that shrinking sea ice may reveal a significant effect on the overall organic carbon storage capacity of the western Barents Sea shelf. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Sea ice Svalbard ice covered areas Unknown Arctic Arctic Ocean Svalbard Barents Sea Climate of the Past 10 2 569 587 |
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geo envir I. Pathirana J. Knies M. Felix U. Mann Towards an improved organic carbon budget for the western Barents Sea shelf |
topic_facet |
geo envir |
description |
There is generally a lack of knowledge on how marine organic carbon accumulation is linked to vertical export and primary productivity patterns in the Arctic Ocean. Despite the fact that annual primary production in the Arctic has increased as a consequence of shrinking sea ice, its effect on flux, preservation, and accumulation of organic carbon is still not well understood. In this study, a multi-proxy geochemical and organic-sedimentological approach is coupled with organic facies modelling, focusing on regional calculations of carbon cycling and carbon burial on the western Barents Shelf between northern Scandinavia and Svalbard. OF-Mod 3-D, an organic facies modelling software tool, is used to reconstruct and quantify the marine and terrestrial organic carbon fractions and to make inferences about marine primary productivity changes across the marginal ice zone (MIZ). By calibrating the model against an extensive set of sediment surface samples, we improve the Holocene organic carbon budget for ice-free and seasonally ice-covered areas in the western Barents Sea. The results show that higher organic carbon accumulation rates in the MIZ are best explained by enhanced surface water productivity compared to ice-free regions, implying that shrinking sea ice may reveal a significant effect on the overall organic carbon storage capacity of the western Barents Sea shelf. |
format |
Article in Journal/Newspaper |
author |
I. Pathirana J. Knies M. Felix U. Mann |
author_facet |
I. Pathirana J. Knies M. Felix U. Mann |
author_sort |
I. Pathirana |
title |
Towards an improved organic carbon budget for the western Barents Sea shelf |
title_short |
Towards an improved organic carbon budget for the western Barents Sea shelf |
title_full |
Towards an improved organic carbon budget for the western Barents Sea shelf |
title_fullStr |
Towards an improved organic carbon budget for the western Barents Sea shelf |
title_full_unstemmed |
Towards an improved organic carbon budget for the western Barents Sea shelf |
title_sort |
towards an improved organic carbon budget for the western barents sea shelf |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/cp-10-569-2014 http://www.clim-past.net/10/569/2014/cp-10-569-2014.pdf https://doaj.org/article/0086105cba2d4d679e23ab8532cea7ed |
geographic |
Arctic Arctic Ocean Svalbard Barents Sea |
geographic_facet |
Arctic Arctic Ocean Svalbard Barents Sea |
genre |
Arctic Arctic Ocean Barents Sea Sea ice Svalbard ice covered areas |
genre_facet |
Arctic Arctic Ocean Barents Sea Sea ice Svalbard ice covered areas |
op_source |
Climate of the Past, Vol 10, Iss 2, Pp 569-587 (2014) |
op_relation |
1814-9324 1814-9332 doi:10.5194/cp-10-569-2014 http://www.clim-past.net/10/569/2014/cp-10-569-2014.pdf https://doaj.org/article/0086105cba2d4d679e23ab8532cea7ed |
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undefined |
op_doi |
https://doi.org/10.5194/cp-10-569-2014 |
container_title |
Climate of the Past |
container_volume |
10 |
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2 |
container_start_page |
569 |
op_container_end_page |
587 |
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1766329967596011520 |