The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica
A large-scale geographical study of the ice pack in the seasonal ice zone of the Weddell Sea, Antarctica, took place from September to October 2006. Sea ice brines with a salinity greater than 58 and temperature lower than -3.6oC were sampled from 22 ice stations. The brines had large deficits in to...
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ftawi:oai:epic.awi.de:30747 2024-09-15T17:40:43+00:00 The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica Papadimitriou, Stathys Kennedy, Hillary Norman, Louiza Kennedy, D.P. Dieckmann, Gerhard S. Thomas, D. N. 2012-08-04 application/pdf https://epic.awi.de/id/eprint/30747/ https://epic.awi.de/id/eprint/30747/1/002_2012JC008058.pdf https://hdl.handle.net/10013/epic.39864 https://hdl.handle.net/10013/epic.39864.d001 unknown AGU https://epic.awi.de/id/eprint/30747/1/002_2012JC008058.pdf https://hdl.handle.net/10013/epic.39864.d001 Papadimitriou, S. , Kennedy, H. , Norman, L. , Kennedy, D. , Dieckmann, G. S. and Thomas, D. N. (2012) The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica , JOURNAL OF GEOPHYSICAL RESEARCH Oceans, 117 (C08011), pp. 1-12 . doi:10.1029/2012JC008058 <https://doi.org/10.1029/2012JC008058> , hdl:10013/epic.39864 EPIC3JOURNAL OF GEOPHYSICAL RESEARCH Oceans, AGU, 117(C08011), pp. 1-12, ISSN: 0148-0227 Article peerRev 2012 ftawi https://doi.org/10.1029/2012JC008058 2024-06-24T04:05:07Z A large-scale geographical study of the ice pack in the seasonal ice zone of the Weddell Sea, Antarctica, took place from September to October 2006. Sea ice brines with a salinity greater than 58 and temperature lower than -3.6oC were sampled from 22 ice stations. The brines had large deficits in total alkalinity and in the concentrations of the major dissolved macronutrients (total dissolved inorganic carbon, nitrate, and soluble reactive phosphorus) relative to their concentrations in the surface oceanic water and conservative behaviour during seawater freezing. The concentration deficits were related to the dissolved inorganic carbon-consuming processes of photosynthesis, CaCO3 precipitation, and CO2 degassing. The largest concentration deficits in total dissolved inorganic carbon were found to be associated with CaCO3 precipitation and CO2 degassing, because the magnitude of the photosynthesis-induced concentration deficit in total dissolved inorganic carbon is controlled by the size of the inorganic nutrient pool, which can be limited in sea ice by its openness to exchange with the surrounding oceanic water. Article in Journal/Newspaper Antarc* Antarctica Antarctica Journal ice pack Sea ice Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Journal of Geophysical Research: Oceans 117 C8 n/a n/a |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
A large-scale geographical study of the ice pack in the seasonal ice zone of the Weddell Sea, Antarctica, took place from September to October 2006. Sea ice brines with a salinity greater than 58 and temperature lower than -3.6oC were sampled from 22 ice stations. The brines had large deficits in total alkalinity and in the concentrations of the major dissolved macronutrients (total dissolved inorganic carbon, nitrate, and soluble reactive phosphorus) relative to their concentrations in the surface oceanic water and conservative behaviour during seawater freezing. The concentration deficits were related to the dissolved inorganic carbon-consuming processes of photosynthesis, CaCO3 precipitation, and CO2 degassing. The largest concentration deficits in total dissolved inorganic carbon were found to be associated with CaCO3 precipitation and CO2 degassing, because the magnitude of the photosynthesis-induced concentration deficit in total dissolved inorganic carbon is controlled by the size of the inorganic nutrient pool, which can be limited in sea ice by its openness to exchange with the surrounding oceanic water. |
format |
Article in Journal/Newspaper |
author |
Papadimitriou, Stathys Kennedy, Hillary Norman, Louiza Kennedy, D.P. Dieckmann, Gerhard S. Thomas, D. N. |
spellingShingle |
Papadimitriou, Stathys Kennedy, Hillary Norman, Louiza Kennedy, D.P. Dieckmann, Gerhard S. Thomas, D. N. The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica |
author_facet |
Papadimitriou, Stathys Kennedy, Hillary Norman, Louiza Kennedy, D.P. Dieckmann, Gerhard S. Thomas, D. N. |
author_sort |
Papadimitriou, Stathys |
title |
The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica |
title_short |
The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica |
title_full |
The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica |
title_fullStr |
The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica |
title_full_unstemmed |
The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica |
title_sort |
effect of biological activity, caco3 mineral dynamics, and co2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the weddell sea, antarctica |
publisher |
AGU |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/30747/ https://epic.awi.de/id/eprint/30747/1/002_2012JC008058.pdf https://hdl.handle.net/10013/epic.39864 https://hdl.handle.net/10013/epic.39864.d001 |
genre |
Antarc* Antarctica Antarctica Journal ice pack Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctica Antarctica Journal ice pack Sea ice Weddell Sea |
op_source |
EPIC3JOURNAL OF GEOPHYSICAL RESEARCH Oceans, AGU, 117(C08011), pp. 1-12, ISSN: 0148-0227 |
op_relation |
https://epic.awi.de/id/eprint/30747/1/002_2012JC008058.pdf https://hdl.handle.net/10013/epic.39864.d001 Papadimitriou, S. , Kennedy, H. , Norman, L. , Kennedy, D. , Dieckmann, G. S. and Thomas, D. N. (2012) The effect of biological activity, CaCO3 mineral dynamics, and CO2 degassing in the inorganic carbon cycle in sea ice in late winter-early spring in the Weddell Sea, Antarctica , JOURNAL OF GEOPHYSICAL RESEARCH Oceans, 117 (C08011), pp. 1-12 . doi:10.1029/2012JC008058 <https://doi.org/10.1029/2012JC008058> , hdl:10013/epic.39864 |
op_doi |
https://doi.org/10.1029/2012JC008058 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
117 |
container_issue |
C8 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1810486755670884352 |