Export of calcium carbonate corrosive waters from the East Siberian Sea
The Siberian shelf seas are areas of extensive biogeochemical transformation of organic matter, both of marine and terrestrial origin. This in combination with brine production from sea ice formation results in a cold bottom water of relative high salinity and partial pressure of carbon dioxide ( p...
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ftdoajarticles:oai:doaj.org/article:2b5263ec4ffb4036a5b20bb237112038 2023-05-15T14:59:48+02:00 Export of calcium carbonate corrosive waters from the East Siberian Sea L. G. Anderson J. Ek Y. Ericson C. Humborg I. Semiletov M. Sundbom A. Ulfsbo 2017-04-01T00:00:00Z https://doi.org/10.5194/bg-14-1811-2017 https://doaj.org/article/2b5263ec4ffb4036a5b20bb237112038 EN eng Copernicus Publications http://www.biogeosciences.net/14/1811/2017/bg-14-1811-2017.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-14-1811-2017 https://doaj.org/article/2b5263ec4ffb4036a5b20bb237112038 Biogeosciences, Vol 14, Iss 7, Pp 1811-1823 (2017) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.5194/bg-14-1811-2017 2022-12-31T10:16:31Z The Siberian shelf seas are areas of extensive biogeochemical transformation of organic matter, both of marine and terrestrial origin. This in combination with brine production from sea ice formation results in a cold bottom water of relative high salinity and partial pressure of carbon dioxide ( p CO 2 ). Data from the SWERUS-C3 expedition compiled on the icebreaker Oden in July to September 2014 show the distribution of such waters at the outer shelf, as well as their export into the deep central Arctic basins. Very high p CO 2 water, up to ∼ 1000 µatm, was observed associated with high nutrients and low oxygen concentrations. Consequently, this water had low saturation state with respect to calcium carbonate down to less than 0.8 for calcite and 0.5 for aragonite. Waters undersaturated in aragonite were also observed in the surface in waters at equilibrium with atmospheric CO 2 however, at these conditions the cause of under-saturation was low salinity from river runoff and/or sea ice melt. The calcium carbonate corrosive water was observed all along the continental margin and well out into the deep Makarov and Canada basins at a depth from about 50 m depth in the west to about 150 m in the east. These waters of low aragonite saturation state are traced in historic data to the Canada Basin and in the waters flowing out of the Arctic Ocean north of Greenland and in the western Fram Strait, thus potentially impacting the marine life in the North Atlantic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean canada basin Central Arctic East Siberian Sea Fram Strait Greenland North Atlantic oden Sea ice SWERUS-C3 Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Canada Greenland East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Biogeosciences 14 7 1811 1823 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 L. G. Anderson J. Ek Y. Ericson C. Humborg I. Semiletov M. Sundbom A. Ulfsbo Export of calcium carbonate corrosive waters from the East Siberian Sea |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
The Siberian shelf seas are areas of extensive biogeochemical transformation of organic matter, both of marine and terrestrial origin. This in combination with brine production from sea ice formation results in a cold bottom water of relative high salinity and partial pressure of carbon dioxide ( p CO 2 ). Data from the SWERUS-C3 expedition compiled on the icebreaker Oden in July to September 2014 show the distribution of such waters at the outer shelf, as well as their export into the deep central Arctic basins. Very high p CO 2 water, up to ∼ 1000 µatm, was observed associated with high nutrients and low oxygen concentrations. Consequently, this water had low saturation state with respect to calcium carbonate down to less than 0.8 for calcite and 0.5 for aragonite. Waters undersaturated in aragonite were also observed in the surface in waters at equilibrium with atmospheric CO 2 however, at these conditions the cause of under-saturation was low salinity from river runoff and/or sea ice melt. The calcium carbonate corrosive water was observed all along the continental margin and well out into the deep Makarov and Canada basins at a depth from about 50 m depth in the west to about 150 m in the east. These waters of low aragonite saturation state are traced in historic data to the Canada Basin and in the waters flowing out of the Arctic Ocean north of Greenland and in the western Fram Strait, thus potentially impacting the marine life in the North Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
L. G. Anderson J. Ek Y. Ericson C. Humborg I. Semiletov M. Sundbom A. Ulfsbo |
author_facet |
L. G. Anderson J. Ek Y. Ericson C. Humborg I. Semiletov M. Sundbom A. Ulfsbo |
author_sort |
L. G. Anderson |
title |
Export of calcium carbonate corrosive waters from the East Siberian Sea |
title_short |
Export of calcium carbonate corrosive waters from the East Siberian Sea |
title_full |
Export of calcium carbonate corrosive waters from the East Siberian Sea |
title_fullStr |
Export of calcium carbonate corrosive waters from the East Siberian Sea |
title_full_unstemmed |
Export of calcium carbonate corrosive waters from the East Siberian Sea |
title_sort |
export of calcium carbonate corrosive waters from the east siberian sea |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/bg-14-1811-2017 https://doaj.org/article/2b5263ec4ffb4036a5b20bb237112038 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Arctic Ocean Canada Greenland East Siberian Sea |
geographic_facet |
Arctic Arctic Ocean Canada Greenland East Siberian Sea |
genre |
Arctic Arctic Ocean canada basin Central Arctic East Siberian Sea Fram Strait Greenland North Atlantic oden Sea ice SWERUS-C3 |
genre_facet |
Arctic Arctic Ocean canada basin Central Arctic East Siberian Sea Fram Strait Greenland North Atlantic oden Sea ice SWERUS-C3 |
op_source |
Biogeosciences, Vol 14, Iss 7, Pp 1811-1823 (2017) |
op_relation |
http://www.biogeosciences.net/14/1811/2017/bg-14-1811-2017.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-14-1811-2017 https://doaj.org/article/2b5263ec4ffb4036a5b20bb237112038 |
op_doi |
https://doi.org/10.5194/bg-14-1811-2017 |
container_title |
Biogeosciences |
container_volume |
14 |
container_issue |
7 |
container_start_page |
1811 |
op_container_end_page |
1823 |
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1766331926323396608 |