CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen
In March and April 2010, we investigated the development of young landfast sea ice in Kongsfjorden, Spitsbergen, Svalbard. We sampled the vertical column, including sea ice, brine, frost flowers and sea water, to determine the CO2 system, nutrients, salinity and bacterial and ice algae production du...
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Online Access: | https://doi.org/10.3189/2015AoG69A563 https://research.chalmers.se/en/publication/219729 |
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ftchalmersuniv:oai:research.chalmers.se:219729 2023-10-09T21:52:15+02:00 CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen Fransson, Agneta Chierici, Melissa Abrahamsson, Katarina Andersson, Maria Granfors, Anna Gårdfeldt, Katarina Torstensson, Anders Wulff, Angela 2015 text https://doi.org/10.3189/2015AoG69A563 https://research.chalmers.se/en/publication/219729 unknown http://dx.doi.org/10.3189/2015AoG69A563 https://research.chalmers.se/en/publication/219729 Oceanography Hydrology Water Resources Environmental Sciences Atmosphere/ice/ocean interactions Ice chemistry Polar and subpolar oceans Sea-ice dynamics 2015 ftchalmersuniv https://doi.org/10.3189/2015AoG69A563 2023-09-13T22:36:41Z In March and April 2010, we investigated the development of young landfast sea ice in Kongsfjorden, Spitsbergen, Svalbard. We sampled the vertical column, including sea ice, brine, frost flowers and sea water, to determine the CO2 system, nutrients, salinity and bacterial and ice algae production during a 13 day interval of ice growth. Apart from the changes due to salinity and brine rejection, the sea-ice concentrations of total inorganic carbon (C T), total alkalinity (A T), CO2 and carbonate ions (CO3 2–) in melted ice were influenced by dissolution of calcium carbonate (CaCO3) precipitates (25–55 μmol kg–1) and played the largest role in the changes to the CO2 system. The C T values were also influenced by CO2 gas flux, bacterial carbon production and primary production, which had a small impact on the C T. The only exception was the uppermost ice layer. In the top 0.05 m of the ice, there was a CO2 loss of ∼20 μmol kg–1 melted ice (1 mmol m–2) from the ice to the atmosphere. Frost flowers on newly formed sea ice were important in promoting ice–air CO2 gas flux, causing a CO2 loss to the atmosphere of 140–800 μmol kg–1 d–1 melted frost flowers (7–40 mmol m–2 d–1). Other/Unknown Material ice algae Kongsfjord* Kongsfjorden Sea ice Svalbard Spitsbergen Chalmers University of Technology: Chalmers research Svalbard Annals of Glaciology 56 69 245 257 |
institution |
Open Polar |
collection |
Chalmers University of Technology: Chalmers research |
op_collection_id |
ftchalmersuniv |
language |
unknown |
topic |
Oceanography Hydrology Water Resources Environmental Sciences Atmosphere/ice/ocean interactions Ice chemistry Polar and subpolar oceans Sea-ice dynamics |
spellingShingle |
Oceanography Hydrology Water Resources Environmental Sciences Atmosphere/ice/ocean interactions Ice chemistry Polar and subpolar oceans Sea-ice dynamics Fransson, Agneta Chierici, Melissa Abrahamsson, Katarina Andersson, Maria Granfors, Anna Gårdfeldt, Katarina Torstensson, Anders Wulff, Angela CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen |
topic_facet |
Oceanography Hydrology Water Resources Environmental Sciences Atmosphere/ice/ocean interactions Ice chemistry Polar and subpolar oceans Sea-ice dynamics |
description |
In March and April 2010, we investigated the development of young landfast sea ice in Kongsfjorden, Spitsbergen, Svalbard. We sampled the vertical column, including sea ice, brine, frost flowers and sea water, to determine the CO2 system, nutrients, salinity and bacterial and ice algae production during a 13 day interval of ice growth. Apart from the changes due to salinity and brine rejection, the sea-ice concentrations of total inorganic carbon (C T), total alkalinity (A T), CO2 and carbonate ions (CO3 2–) in melted ice were influenced by dissolution of calcium carbonate (CaCO3) precipitates (25–55 μmol kg–1) and played the largest role in the changes to the CO2 system. The C T values were also influenced by CO2 gas flux, bacterial carbon production and primary production, which had a small impact on the C T. The only exception was the uppermost ice layer. In the top 0.05 m of the ice, there was a CO2 loss of ∼20 μmol kg–1 melted ice (1 mmol m–2) from the ice to the atmosphere. Frost flowers on newly formed sea ice were important in promoting ice–air CO2 gas flux, causing a CO2 loss to the atmosphere of 140–800 μmol kg–1 d–1 melted frost flowers (7–40 mmol m–2 d–1). |
author |
Fransson, Agneta Chierici, Melissa Abrahamsson, Katarina Andersson, Maria Granfors, Anna Gårdfeldt, Katarina Torstensson, Anders Wulff, Angela |
author_facet |
Fransson, Agneta Chierici, Melissa Abrahamsson, Katarina Andersson, Maria Granfors, Anna Gårdfeldt, Katarina Torstensson, Anders Wulff, Angela |
author_sort |
Fransson, Agneta |
title |
CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen |
title_short |
CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen |
title_full |
CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen |
title_fullStr |
CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen |
title_full_unstemmed |
CO2-system development in young sea ice and CO2 gas exchange at the ice/air interface mediated by brine and frost flowers in Kongsfjorden, Spitsbergen |
title_sort |
co2-system development in young sea ice and co2 gas exchange at the ice/air interface mediated by brine and frost flowers in kongsfjorden, spitsbergen |
publishDate |
2015 |
url |
https://doi.org/10.3189/2015AoG69A563 https://research.chalmers.se/en/publication/219729 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
ice algae Kongsfjord* Kongsfjorden Sea ice Svalbard Spitsbergen |
genre_facet |
ice algae Kongsfjord* Kongsfjorden Sea ice Svalbard Spitsbergen |
op_relation |
http://dx.doi.org/10.3189/2015AoG69A563 https://research.chalmers.se/en/publication/219729 |
op_doi |
https://doi.org/10.3189/2015AoG69A563 |
container_title |
Annals of Glaciology |
container_volume |
56 |
container_issue |
69 |
container_start_page |
245 |
op_container_end_page |
257 |
_version_ |
1779315383097884672 |