气候变化领域集成服务门户(CCPortal): Modern Meteoric 36Cl Deposition in the Atacama Desert; Chile

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DOI	10.1029/2020GL089982
	Modern Meteoric 36Cl Deposition in the Atacama Desert; Chile
	Wang F.; Michalski G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:21
英文摘要	Modern atmospheric deposition along a west-east transect in the Atacama Desert, Chile, was collected to constrain the meteoric 36Cl/Cl ratio and 36Cl deposition flux. The 36Cl deposition flux had a threefold change, from 3.62(±0.18) to 11.6(±0.2) atoms m−2 s−1, going from the coast to the high Andes. The 36Cl deposition was mainly as dry deposition, and the magnitude and differences between sites were attributed to stratosphere-troposphere transport and chloride deficits by acid displacement, respectively. The meteoric 36Cl/Cl ratios varied greatly from 31.5(±1.1) × 10−15 to 247(±10) × 10−15, which was attributed to local inputs of oceanic chloride near the coast or chloride minerals entrained from nearby salt playas. This study presented refined estimates of the 36Cl deposition flux and meteoric 36Cl/Cl ratio in a desert region in southern tropical zone. The data set will provide a baseline for using natural 36Cl abundances to date salt accumulation in the Atacama. ©2020. The Authors.
英文关键词	Chloride minerals; Landforms; Meteorological problems; Tropics; Acid displacement; Atacama desert , Chile; Atmospheric depositions; Data set; Deposition fluxes; Dry deposition; Salt accumulations; Tropical zones; Deposition; atmospheric deposition; chlorine isotope; dry deposition; meteoric water; molecular analysis; playa; stratosphere-troposphere interaction; tropical region; Atacama Desert; Chile; Atacama; Trixis
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169516
作者单位	School of Atmospheric Sciences, Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Zhuhai, Guangdong Province, China; Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN, United States; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong Province, China; Department of Chemistry, Purdue University, West Lafayette, IN, United States
推荐引用方式 GB/T 7714	Wang F.,Michalski G.. Modern Meteoric 36Cl Deposition in the Atacama Desert; Chile[J],2020,47(21).
APA	Wang F.,&Michalski G..(2020).Modern Meteoric 36Cl Deposition in the Atacama Desert; Chile.Geophysical Research Letters,47(21).
MLA	Wang F.,et al."Modern Meteoric 36Cl Deposition in the Atacama Desert; Chile".Geophysical Research Letters 47.21(2020).