Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations
We present and compare the dynamics (i.e., changes in standing stocks, saturation levels and concentrations) of O 2 , Ar and N 2 in landfast sea ice, collected in Barrow (Alaska), from February through June 2009. The comparison suggests that the dynamic of O 2 in sea ice strongly depends on physical...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://www.vliz.be/imisdocs/publications/271773.pdf |
id |
ftvliz:oai:oma.vliz.be:247077 |
---|---|
record_format |
openpolar |
spelling |
ftvliz:oai:oma.vliz.be:247077 2023-05-15T15:39:43+02:00 Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations Zhou, J. Delille, B. Brabant, F. Tison, J.-L. 2014 application/pdf https://www.vliz.be/imisdocs/publications/271773.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000343120900007 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.5194/bg-11-5007-2014 https://www.vliz.be/imisdocs/publications/271773.pdf info:eu-repo/semantics/openAccess %3Ci%3EBiogeosciences+11%2818%29%3C%2Fi%3E%3A+5007-5020.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.5194%2Fbg-11-5007-2014%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.5194%2Fbg-11-5007-2014%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftvliz https://doi.org/10.5194/bg-11-5007-2014 2022-05-01T10:27:20Z We present and compare the dynamics (i.e., changes in standing stocks, saturation levels and concentrations) of O 2 , Ar and N 2 in landfast sea ice, collected in Barrow (Alaska), from February through June 2009. The comparison suggests that the dynamic of O 2 in sea ice strongly depends on physical processes (gas incorporation and subsequent transport). Since Ar and N 2 are only sensitive to the physical processes in the present study, we then discuss the use of O 2 / Ar and O 2 / N 2 to correct for the physical contribution to O 2 supersaturations, and to determine the net community production (NCP). We conclude that O 2 / Ar suits better than O 2 / N 2 , due to the relative abundance of O 2 , N 2 and Ar, and the lower biases when gas bubble formation and gas diffusion are maximized. We further estimate NCP in the impermeable layers during ice growth, which ranged from -6.6 to 3.6 µmol O 2 L -1 d -1 , and the concentrations of O 2 due to biological activity in the permeable layers during ice decay (3.8 to 122 µmol O 2 L -1 ). We finally highlight the key issues to solve for more accurate NCP estimates in the future. Article in Journal/Newspaper Barrow Sea ice Alaska Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Biogeosciences 11 18 5007 5020 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
We present and compare the dynamics (i.e., changes in standing stocks, saturation levels and concentrations) of O 2 , Ar and N 2 in landfast sea ice, collected in Barrow (Alaska), from February through June 2009. The comparison suggests that the dynamic of O 2 in sea ice strongly depends on physical processes (gas incorporation and subsequent transport). Since Ar and N 2 are only sensitive to the physical processes in the present study, we then discuss the use of O 2 / Ar and O 2 / N 2 to correct for the physical contribution to O 2 supersaturations, and to determine the net community production (NCP). We conclude that O 2 / Ar suits better than O 2 / N 2 , due to the relative abundance of O 2 , N 2 and Ar, and the lower biases when gas bubble formation and gas diffusion are maximized. We further estimate NCP in the impermeable layers during ice growth, which ranged from -6.6 to 3.6 µmol O 2 L -1 d -1 , and the concentrations of O 2 due to biological activity in the permeable layers during ice decay (3.8 to 122 µmol O 2 L -1 ). We finally highlight the key issues to solve for more accurate NCP estimates in the future. |
format |
Article in Journal/Newspaper |
author |
Zhou, J. Delille, B. Brabant, F. Tison, J.-L. |
spellingShingle |
Zhou, J. Delille, B. Brabant, F. Tison, J.-L. Insights into oxygen transport and net community production in sea ice from oxygen, nitrogen and argon concentrations |
author_facet |
Zhou, J. Delille, B. Brabant, F. Tison, J.-L. |
author_sort |
Zhou, J. |
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 |
publishDate |
2014 |
url |
https://www.vliz.be/imisdocs/publications/271773.pdf |
genre |
Barrow Sea ice Alaska |
genre_facet |
Barrow Sea ice Alaska |
op_source |
%3Ci%3EBiogeosciences+11%2818%29%3C%2Fi%3E%3A+5007-5020.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.5194%2Fbg-11-5007-2014%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.5194%2Fbg-11-5007-2014%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000343120900007 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.5194/bg-11-5007-2014 https://www.vliz.be/imisdocs/publications/271773.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
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_ |
1766371773491707904 |