气候变化领域集成服务门户(CCPortal): Holocene atmospheric iodine evolution over the North Atlantic

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DOI	10.5194/cp-15-2019-2019
	Holocene atmospheric iodine evolution over the North Atlantic
	Corella J.P.; Maffezzoli N.; Alberto Cuevas C.; Vallelonga P.; Spolaor A.; Cozzi G.; Müller J.; Vinther B.; Barbante C.; Astrid Kjær H.; Edwards R.; Saiz-Lopez A.
发表日期	2019
ISSN	18149324
起始页码	2019
结束页码	2030
卷号	15 期号:6
英文摘要	Atmospheric iodine chemistry has a large influence on the oxidizing capacity and associated radiative impacts in the troposphere. However, information on the evolution of past atmospheric iodine levels is restricted to the industrial period while its long-term natural variability remains unknown. The current levels of iodine in the atmosphere are controlled by anthropogenic ozone deposition to the ocean surface. Here, using high-resolution geochemical measurements from coastal eastern Greenland ReCAP (REnland ice CAP project) ice core, we report the first record of atmospheric iodine variability in the North Atlantic during the Holocene (i.e., the last 11 700 years). Surprisingly, our results reveal that the highest iodine concentrations in the record were found during the Holocene Thermal Maximum (HTM; ∼ 11 500-5500 years before-present). These high iodine levels could be driven by marine primary productivity resulting in an Early Holocene "biological iodine explosion". The high and stable iodine levels during this past warm period are a useful observational constraint on projections of future changes in Arctic atmospheric composition and climate resulting from global warming. © 2019 Royal Society of Chemistry. All rights reserved.
语种	英语
scopus关键词	atmospheric chemistry; climate change; geochemical survey; global warming; Hypsithermal; iodine; oxidation; radiative transfer; sea surface; Arctic; Atlantic Ocean; Atlantic Ocean (North); Greenland
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146765
作者单位	Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Serrano 119, Madrid, 28006, Spain; Physics of Ice Climate and Earth, Niels Bohr Institute, University of Copenhagen, Tagensvej 16, Copenhagen, N 2200, Denmark; Institute of Polar Sciences, ISP-CNR, Via Torino 155, Venice, 30170, Italy; Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Am Alten Hafen 26, Bremerhaven, 27568, Germany; MARUM Research Faculty, University of Bremen, Leobener Strasse 8, Bremen, 28359, Germany; Department of Environmental Sciences, Informatics and Statistics, Ca'Foscari University of Venice, Via Torino 155, Venice, 30170, Italy; Physics and Astronomy, Curtin University, Kent St, Bentley, WA 6102, Australia; Department of Civil and Environmental Engineering, UW-Madison, Madison, WI 53706, United States
推荐引用方式 GB/T 7714	Corella J.P.,Maffezzoli N.,Alberto Cuevas C.,et al. Holocene atmospheric iodine evolution over the North Atlantic[J],2019,15(6).
APA	Corella J.P..,Maffezzoli N..,Alberto Cuevas C..,Vallelonga P..,Spolaor A..,...&Saiz-Lopez A..(2019).Holocene atmospheric iodine evolution over the North Atlantic.Climate of the Past,15(6).
MLA	Corella J.P.,et al."Holocene atmospheric iodine evolution over the North Atlantic".Climate of the Past 15.6(2019).