Quantification of ikaite in Antarctic sea ice
Calcium carbonate precipitation in sea ice is thought to potentially drive significant CO2 uptake by the ocean. However, little is known about the quantitative spatial and temporal distribution of CaCO3 within sea ice, although it is hypothesized that high quantities of dissolved organic matter and/...
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Online Access: | https://doi.org/10.1017/S0954102012001150 http://ecite.utas.edu.au/86830 |
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ftunivtasecite:oai:ecite.utas.edu.au:86830 2023-05-15T13:37:23+02:00 Quantification of ikaite in Antarctic sea ice Fischer, M Thomas, DN Krell, A Nehrke, G Gottlicher, J Norman, L Meiners, K Riaux-Gobin, C Dieckmann, GS 2013 https://doi.org/10.1017/S0954102012001150 http://ecite.utas.edu.au/86830 en eng Cambridge Univ Press http://dx.doi.org/10.1017/S0954102012001150 Fischer, M and Thomas, DN and Krell, A and Nehrke, G and Gottlicher, J and Norman, L and Meiners, K and Riaux-Gobin, C and Dieckmann, GS, Quantification of ikaite in Antarctic sea ice, Antarctic Science, 25, (3) pp. 421-432. ISSN 0954-1020 (2013) [Refereed Article] http://ecite.utas.edu.au/86830 Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Refereed Article PeerReviewed 2013 ftunivtasecite https://doi.org/10.1017/S0954102012001150 2019-12-13T21:50:53Z Calcium carbonate precipitation in sea ice is thought to potentially drive significant CO2 uptake by the ocean. However, little is known about the quantitative spatial and temporal distribution of CaCO3 within sea ice, although it is hypothesized that high quantities of dissolved organic matter and/or phosphate (common in sea ice) may inhibit its formation. In this quantitative study of hydrous calcium carbonate as ikaite, sea ice cores and brine samples were collected from pack and land fast sea ice between September and December 2007 during two expeditions, one in the East Antarctic sector and the other off Terre Adlie. Samples were analysed for CaCO3, salinity, dissolved organic carbon/nitrogen, inorganic phosphate, and total alkalinity. No relationship between these parameters and CaCO3 precipitation was evident. Ikaite was found mostly in the uppermost layers of sea ice with maximum concentrations of up to 126 mg ikaite per litre melted sea ice being measured, although both the temporal and horizontal spatial distributions of ikaite were highly heterogeneous. The precipitate was also found in the snow on top of the sea ice at some of the sampling locations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Sea ice eCite UTAS (University of Tasmania) Antarctic Antarctic Science 25 3 421 432 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
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Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Fischer, M Thomas, DN Krell, A Nehrke, G Gottlicher, J Norman, L Meiners, K Riaux-Gobin, C Dieckmann, GS Quantification of ikaite in Antarctic sea ice |
topic_facet |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
description |
Calcium carbonate precipitation in sea ice is thought to potentially drive significant CO2 uptake by the ocean. However, little is known about the quantitative spatial and temporal distribution of CaCO3 within sea ice, although it is hypothesized that high quantities of dissolved organic matter and/or phosphate (common in sea ice) may inhibit its formation. In this quantitative study of hydrous calcium carbonate as ikaite, sea ice cores and brine samples were collected from pack and land fast sea ice between September and December 2007 during two expeditions, one in the East Antarctic sector and the other off Terre Adlie. Samples were analysed for CaCO3, salinity, dissolved organic carbon/nitrogen, inorganic phosphate, and total alkalinity. No relationship between these parameters and CaCO3 precipitation was evident. Ikaite was found mostly in the uppermost layers of sea ice with maximum concentrations of up to 126 mg ikaite per litre melted sea ice being measured, although both the temporal and horizontal spatial distributions of ikaite were highly heterogeneous. The precipitate was also found in the snow on top of the sea ice at some of the sampling locations. |
format |
Article in Journal/Newspaper |
author |
Fischer, M Thomas, DN Krell, A Nehrke, G Gottlicher, J Norman, L Meiners, K Riaux-Gobin, C Dieckmann, GS |
author_facet |
Fischer, M Thomas, DN Krell, A Nehrke, G Gottlicher, J Norman, L Meiners, K Riaux-Gobin, C Dieckmann, GS |
author_sort |
Fischer, M |
title |
Quantification of ikaite in Antarctic sea ice |
title_short |
Quantification of ikaite in Antarctic sea ice |
title_full |
Quantification of ikaite in Antarctic sea ice |
title_fullStr |
Quantification of ikaite in Antarctic sea ice |
title_full_unstemmed |
Quantification of ikaite in Antarctic sea ice |
title_sort |
quantification of ikaite in antarctic sea ice |
publisher |
Cambridge Univ Press |
publishDate |
2013 |
url |
https://doi.org/10.1017/S0954102012001150 http://ecite.utas.edu.au/86830 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Science Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Science Sea ice |
op_relation |
http://dx.doi.org/10.1017/S0954102012001150 Fischer, M and Thomas, DN and Krell, A and Nehrke, G and Gottlicher, J and Norman, L and Meiners, K and Riaux-Gobin, C and Dieckmann, GS, Quantification of ikaite in Antarctic sea ice, Antarctic Science, 25, (3) pp. 421-432. ISSN 0954-1020 (2013) [Refereed Article] http://ecite.utas.edu.au/86830 |
op_doi |
https://doi.org/10.1017/S0954102012001150 |
container_title |
Antarctic Science |
container_volume |
25 |
container_issue |
3 |
container_start_page |
421 |
op_container_end_page |
432 |
_version_ |
1766091005366370304 |