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 (pCO...
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Language: | English |
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Copernicus Publications on behalf of the European Geosciences Union
2017
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Online Access: | https://hdl.handle.net/1956/19130 https://doi.org/10.5194/bg-14-1811-2017 |
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ftunivbergen:oai:bora.uib.no:1956/19130 2023-05-15T14:24:23+02:00 Export of calcium carbonate corrosive waters from the East Siberian Sea Anderson, Leif G. Ek, Jörgen Ericson, Ylva Humborg, Christoph Semiletov, Igor Sundbom, Magnus Ulfsbo, Adam 2017-04-05 application/pdf https://hdl.handle.net/1956/19130 https://doi.org/10.5194/bg-14-1811-2017 eng eng Copernicus Publications on behalf of the European Geosciences Union Drivers of the marine CO2 system in the High Arctic - from the deep basins to the shallow fjords urn:issn:1726-4170 https://hdl.handle.net/1956/19130 https://doi.org/10.5194/bg-14-1811-2017 cristin:1549901 Attribution CC BY http://creativecommons.org/licenses/by/3.0/ Copyright 2017 The Authors Biogeosciences 14 1811-1823 Peer reviewed Journal article 2017 ftunivbergen https://doi.org/10.5194/bg-14-1811-2017 2023-03-14T17:44:07Z 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 (pCO2). 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 pCO2 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 CO2; however, at these conditions the cause of undersaturation 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 50mdepth in the west to about 150m 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. publishedVersion Article in Journal/Newspaper Arctic Arctic Arctic Ocean canada basin Central Arctic East Siberian Sea Fram Strait Greenland North Atlantic oden Sea ice SWERUS-C3 University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Arctic Ocean Canada East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Greenland Biogeosciences 14 7 1811 1823 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
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 (pCO2). 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 pCO2 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 CO2; however, at these conditions the cause of undersaturation 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 50mdepth in the west to about 150m 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. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Anderson, Leif G. Ek, Jörgen Ericson, Ylva Humborg, Christoph Semiletov, Igor Sundbom, Magnus Ulfsbo, Adam |
spellingShingle |
Anderson, Leif G. Ek, Jörgen Ericson, Ylva Humborg, Christoph Semiletov, Igor Sundbom, Magnus Ulfsbo, Adam Export of calcium carbonate corrosive waters from the East Siberian Sea |
author_facet |
Anderson, Leif G. Ek, Jörgen Ericson, Ylva Humborg, Christoph Semiletov, Igor Sundbom, Magnus Ulfsbo, Adam |
author_sort |
Anderson, Leif G. |
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 on behalf of the European Geosciences Union |
publishDate |
2017 |
url |
https://hdl.handle.net/1956/19130 https://doi.org/10.5194/bg-14-1811-2017 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Arctic Ocean Canada East Siberian Sea Greenland |
geographic_facet |
Arctic Arctic Ocean Canada East Siberian Sea Greenland |
genre |
Arctic Arctic Arctic Ocean canada basin Central Arctic East Siberian Sea Fram Strait Greenland North Atlantic oden Sea ice SWERUS-C3 |
genre_facet |
Arctic Arctic Arctic Ocean canada basin Central Arctic East Siberian Sea Fram Strait Greenland North Atlantic oden Sea ice SWERUS-C3 |
op_source |
Biogeosciences 14 1811-1823 |
op_relation |
Drivers of the marine CO2 system in the High Arctic - from the deep basins to the shallow fjords urn:issn:1726-4170 https://hdl.handle.net/1956/19130 https://doi.org/10.5194/bg-14-1811-2017 cristin:1549901 |
op_rights |
Attribution CC BY http://creativecommons.org/licenses/by/3.0/ Copyright 2017 The Authors |
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 |
_version_ |
1766296801556561920 |