气候变化领域集成服务门户(CCPortal): Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica)

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DOI	10.5194/tc-11-693-2017
	Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica)
	Maffezzoli N.; Spolaor A.; Barbante C.; Bertò M.; Frezzotti M.; Vallelonga P.
发表日期	2017
ISSN	19940416
卷号	11 期号:2
英文摘要	Halogen chemistry in the polar regions occurs through the release of halogen elements from different sources. Bromine is primarily emitted from sea salt aerosols and other saline condensed phases associated with sea ice surfaces, while iodine is affected by the release of organic compounds from algae colonies living within the sea ice environment. Measurements of halogen species in polar snow samples are limited to a few sites although there is some evidence that they are related to sea ice extent. We examine here total bromine, iodine and sodium concentrations in a series of 2 m cores collected during a traverse from Talos Dome (72°48'S, 159°06'E) to GV7 (70°41'S, 158°51'E) analyzed by inductively coupled plasma-sector field mass spectrometry (ICP-SFMS) at a resolution of 5cm. We find a distinct seasonality of the bromine enrichment signal in most of the cores, with maxima during the austral spring. Iodine shows average concentrations of 0.04 ppb with little variability. No distinct seasonality is found for iodine and sodium. The transect reveals homogeneous air-to-snow fluxes for the three chemical species along the transect due to competing effects of air masses originating from the Ross Sea and the Southern Ocean. © 2017 Author(s).
学科领域	aerosol; air mass; atmospheric deposition; bromine; iodine; organic compound; sea ice; snow cover; sodium; Antarctica; East Antarctica; Ross Sea; Southern Ocean; Talos Dome; Victoria Land; algae
语种	英语
scopus关键词	aerosol; air mass; atmospheric deposition; bromine; iodine; organic compound; sea ice; snow cover; sodium; Antarctica; East Antarctica; Ross Sea; Southern Ocean; Talos Dome; Victoria Land; algae
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119425
作者单位	Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, Copenhagen Ø, 2100, Denmark; Institute for the Dynamics of Environmental Processes, IDPA-CNR, Via Torino 155, Mestre, Venice, 30170, Italy; Ca'Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, Via Torino 155, Mestre, Venice, 30170, Italy; ENEA, SP. Anguillarese 301, Rome, 00123, Italy
推荐引用方式 GB/T 7714	Maffezzoli N.,Spolaor A.,Barbante C.,et al. Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica)[J],2017,11(2).
APA	Maffezzoli N.,Spolaor A.,Barbante C.,Bertò M.,Frezzotti M.,&Vallelonga P..(2017).Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica).Cryosphere,11(2).
MLA	Maffezzoli N.,et al."Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica)".Cryosphere 11.2(2017).