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Bromoform concentrations in slush-layer water in Antarctic fast ice

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Title: Bromoform concentrations in slush-layer water in Antarctic fast ice
Authors: Nomura, Daiki Browse this author →KAKEN DB
Ooki, Atsushi Browse this author →KAKEN DB
Simizu, Daisuke Browse this author
Fukuchi, Mitsuo Browse this author
Keywords: bromoform
sea ice
slush layer
under-ice water
Lützow-Holm Bay
Issue Date: 22-Nov-2011
Publisher: Cambridge University Press
Journal Title: Antarctic Science
Volume: 23
Issue: 6
Start Page: 623
End Page: 628
Publisher DOI: 10.1017/S0954102011000459
Abstract: Bromoform concentrations in water of the slush layer that developed at the interface between snow and sea ice were measured during the seasonal warming in Lützow-Holm Bay, East Antarctica. Mean bromoform concentration was 5.5 ± 2.4 pmol l-1, which was lower than that of the under-ice water (10.9 ± 3.5 pmol l-1). Temporal decrease in bromoform concentrations and salinity with increasing temperature of the slush water suggest that the bromoform concentrations were reduced through dilution with meltwater input from the upper surface of sea ice. In contrast, bromoform concentrations in the under-ice water increased during this period while the salinity of the under-ice water decreased. It is speculated that the sea ice meltwater input contained high bromoform concentrations from the brine channels within the sea ice and from the bottom of the ice that were contributed to the increased bromoform concentrations in the under-ice water.
Rights: This article has been published in a revised form in Antarctic Science This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works. © 2011 Antarctic Science Ltd
Type: article (author version)
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 野村 大樹

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