气候变化领域集成服务门户(CCPortal): Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau

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DOI	10.1038/s41467-021-26109-x
	Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
	Spolaor A.; Burgay F.; Fernandez R.P.; Turetta C.; Cuevas C.A.; Kim K.; Kinnison D.E.; Lamarque J.-F.; de Blasi F.; Barbaro E.; Corella J.P.; Vallelonga P.; Frezzotti M.; Barbante C.; Saiz-Lopez A.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Polar stratospheric ozone has decreased since the 1970s due to anthropogenic emissions of chlorofluorocarbons and halons, resulting in the formation of an ozone hole over Antarctica. The effects of the ozone hole and the associated increase in incoming UV radiation on terrestrial and marine ecosystems are well established; however, the impact on geochemical cycles of ice photoactive elements, such as iodine, remains mostly unexplored. Here, we present the first iodine record from the inner Antarctic Plateau (Dome C) that covers approximately the last 212 years (1800-2012 CE). Our results show that the iodine concentration in ice remained constant during the pre-ozone hole period (1800-1974 CE) but has declined twofold since the onset of the ozone hole era (~1975 CE), closely tracking the total ozone evolution over Antarctica. Based on ice core observations, laboratory measurements and chemistry-climate model simulations, we propose that the iodine decrease since ~1975 is caused by enhanced iodine re-emission from snowpack due to the ozone hole-driven increase in UV radiation reaching the Antarctic Plateau. These findings suggest the potential for ice core iodine records from the inner Antarctic Plateau to be as an archive for past stratospheric ozone trends. © 2021, The Author(s).
语种	英语
scopus关键词	iodine; ozone; concentration (composition); geochemistry; ice core; iodine; snowpack; total ozone; Antarctica; Article; atmospheric transport; climate change; clinical laboratory; geochemistry; marine environment; ozone depletion; ozone layer; photochemistry; photooxidation; physical chemistry; ultraviolet radiation; Antarctic Plateau; Antarctica; Dome Concordia; East Antarctica
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250609
作者单位	Institute of Polar Sciences, CNR-ISP, Campus Scientifico Via Torino 155, Mestre, Venice, 30172, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca’Foscari of Venice, via Torino, Venice-Mestre, 155 - 30172, Italy; Paul Scherrer Institute, Laboratory of Environmental Chemistry, Villigen, PSI 5232, Switzerland; Institute for Interdisciplinary Science, National Research Council (ICB-CONICET), FCEN-UNCuyo, Mendoza, 5501, Argentina; Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Madrid, Spain; Korea Polar Research Institute, Incheon, 21990, South Korea; National Center for Atmospheric Research, Boulder, CO, United States; CIEMAT, Environmental Department, Av. Complutense 40, 28040, Madrid, Spain; Physics of Ice, Climate and Earth, Niels Bohr Institute, University of Copenhagen, Tagensvej 16, Copenhagen, N2200, Denmark; UWA Oceans Institute, University of Western Australia, Crawley, WA 6009, Australia; Department of Science...
推荐引用方式 GB/T 7714	Spolaor A.,Burgay F.,Fernandez R.P.,et al. Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau[J],2021,12(1).
APA	Spolaor A..,Burgay F..,Fernandez R.P..,Turetta C..,Cuevas C.A..,...&Saiz-Lopez A..(2021).Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau.Nature Communications,12(1).
MLA	Spolaor A.,et al."Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau".Nature Communications 12.1(2021).