Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations
peer reviewed We present the evolution of O2 standing stocks, saturation levels and concentrations in landfast sea ice, collected in Barrow (Alaska), from February to June 2009. The comparison of the standing stocks and saturation levels of O2 against those of N2 and Ar suggests that the dynamic of...
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Language: | English |
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European Geosciences Union
2014
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Online Access: | https://orbi.uliege.be/handle/2268/171564 https://doi.org/10.5194/bg-11-5007-2014 |
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ftorbi:oai:orbi.ulg.ac.be:2268/171564 2024-10-13T14:06:19+00:00 Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations Zhou, Jiayun Delille, Bruno Brabant, F. Tison, Jean-Louis 2014 https://orbi.uliege.be/handle/2268/171564 https://doi.org/10.5194/bg-11-5007-2014 en eng European Geosciences Union urn:issn:1726-4170 urn:issn:1726-4189 https://orbi.uliege.be/handle/2268/171564 info:hdl:2268/171564 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Biogeosciences, 11, 5007-5020 (2014) Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2014 ftorbi https://doi.org/10.5194/bg-11-5007-2014 2024-09-27T07:01:47Z peer reviewed We present the evolution of O2 standing stocks, saturation levels and concentrations in landfast sea ice, collected in Barrow (Alaska), from February to June 2009. The comparison of the standing stocks and saturation levels of O2 against those of N2 and Ar suggests that the dynamic of O2 in sea ice strongly depends on physical processes (gas incorporation and subsequent transport). We then discuss on the use of O2 / Ar and O2 / N2 to correct for the physical contribution and to determine the biological contribution (NCP) to O2 supersaturations. We conclude that O2 / Ar suits better than O2 / N2, because O2 / N2 is more sensitive due to the relative abundance of O2, N2 and Ar, and less biased when gas bubble formation and gas diffusion are maximized. We further estimate the NCP in the impermeable layers during ice growth and in the permeable layers during ice decay. Our results indicate that NCP contributed to a~release of carbon to the atmosphere in the upper ice layers, but to an uptake of carbon at sea ice bottom. Overall, seawater (rather than the atmosphere) may be the main supplier of carbon for sea ice microorganisms. YROSIAE Article in Journal/Newspaper Barrow Sea ice Alaska University of Liège: ORBi (Open Repository and Bibliography) Biogeosciences 11 18 5007 5020 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Zhou, Jiayun Delille, Bruno Brabant, F. Tison, Jean-Louis Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
topic_facet |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed We present the evolution of O2 standing stocks, saturation levels and concentrations in landfast sea ice, collected in Barrow (Alaska), from February to June 2009. The comparison of the standing stocks and saturation levels of O2 against those of N2 and Ar suggests that the dynamic of O2 in sea ice strongly depends on physical processes (gas incorporation and subsequent transport). We then discuss on the use of O2 / Ar and O2 / N2 to correct for the physical contribution and to determine the biological contribution (NCP) to O2 supersaturations. We conclude that O2 / Ar suits better than O2 / N2, because O2 / N2 is more sensitive due to the relative abundance of O2, N2 and Ar, and less biased when gas bubble formation and gas diffusion are maximized. We further estimate the NCP in the impermeable layers during ice growth and in the permeable layers during ice decay. Our results indicate that NCP contributed to a~release of carbon to the atmosphere in the upper ice layers, but to an uptake of carbon at sea ice bottom. Overall, seawater (rather than the atmosphere) may be the main supplier of carbon for sea ice microorganisms. YROSIAE |
format |
Article in Journal/Newspaper |
author |
Zhou, Jiayun Delille, Bruno Brabant, F. Tison, Jean-Louis |
author_facet |
Zhou, Jiayun Delille, Bruno Brabant, F. Tison, Jean-Louis |
author_sort |
Zhou, Jiayun |
title |
Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
title_short |
Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
title_full |
Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
title_fullStr |
Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
title_full_unstemmed |
Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
title_sort |
insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
publisher |
European Geosciences Union |
publishDate |
2014 |
url |
https://orbi.uliege.be/handle/2268/171564 https://doi.org/10.5194/bg-11-5007-2014 |
genre |
Barrow Sea ice Alaska |
genre_facet |
Barrow Sea ice Alaska |
op_source |
Biogeosciences, 11, 5007-5020 (2014) |
op_relation |
urn:issn:1726-4170 urn:issn:1726-4189 https://orbi.uliege.be/handle/2268/171564 info:hdl:2268/171564 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.5194/bg-11-5007-2014 |
container_title |
Biogeosciences |
container_volume |
11 |
container_issue |
18 |
container_start_page |
5007 |
op_container_end_page |
5020 |
_version_ |
1812812397569638400 |