干旱区生态环境知识资源中心(Arid): The Elbrus (Caucasus, Russia) ice core record - Part 2: history of desert dust deposition

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DOI	10.5194/acp-19-14133-2019
	The Elbrus (Caucasus, Russia) ice core record - Part 2: history of desert dust deposition
	Kutuzov, Stanislav 1; Legrand, Michel 2,3; Preunkert, Susanne 2,3; Ginot, Patrick 2,3,6; Mikhalenko, Vladimir 1; Shukurov, Karim 4; Poliukhov, Aleksei 5,7; Toropov, Pavel 1,5
通讯作者	Kutuzov, Stanislav
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
EISSN	1680-7324
出版年	2019
卷号	19 期号:22 页码:14133-14148
英文摘要	Ice cores are one of the most valuable paleoarchives. Records from ice cores provide information not only about the amount of dust in the atmosphere, but also about dust sources and their changes in the past. In 2009, a 182 m long ice core was recovered from the western plateau of Mt Elbrus (5115 ma.s.l.). This record was further extended after a shallow ice core was drilled in 2013. Here we analyse Ca2+ concentrations, a commonly used proxy of dust, recorded in these Elbrus ice records over the time period of 1774-2013 CE. The Ca2+ record reveals quasi-decadal variability with a generally increasing trend. Using multiple regression analysis, we found a statistically significant spatial correlation of the Elbrus Ca2+ summer concentrations with precipitation and soil moisture content in the Levant region (specifically Syria and Iraq). The Ca2+ record also correlates with drought indices in North Africa (r = 0.67, p<0.001) and Middle East regions (r = 0.71, p<0.001). Dust concentrations prominently increase in the ice core over the past 200 years, confirming that the recent droughts in the Fertile Crescent (1998-2012 CE) present the most severe aridity experienced in at least the past two centuries. For the most recent 33 years recorded (1979-2012 CE), significant correlations exist between Ca2+ and Pacific circulation indices (Pacific Decadal Oscillation, Southern Oscillation Index and Nino 4), which suggests that the increased frequency of extreme El Nino and La Nina events due to a warming climate has extended their influence to the Middle East. Evidence demonstrates that the increase in Ca2+ concentration in the ice core cannot be attributed to human activities, such as coal combustion and cement production.
类型	Article
语种	英语
国家	Russia ; France
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000498809000006
WOS关键词	CLIMATE-CHANGE ; SAHARAN DUST ; BLACK CARBON ; MT. ELBRUS ; FERTILE CRESCENT ; FRENCH ALPS ; VARIABILITY ; DROUGHT ; IMPACT ; AEROSOL
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
EI主题词	2019-11-22
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310968
作者单位	1.Russian Acad Sci, Inst Geog, Moscow 119017, Russia; 2.Univ Grenoble Alpes, Inst Geosci Environm, Grenoble INP, CNRS,IRD, F-38000 Grenoble, France; 3.Univ Grenoble Alpes, Observ Sci Univers Grenoble, CNRS, IRD, F-38400 Grenoble, France; 4.Russian Acad Sci, AM Obukhov Inst Atmospher Phys, Moscow 119017, Russia; 5.Lomonosov Moscow State Univ, Fac Geog, Moscow 119991, Russia; 6.IRD UGA CNRS, Observ Sci Univers Grenoble, F-38400 Grenoble, France; 7.Hydrometeorol Res Ctr Russian Federat, Moscow 123242, Russia
推荐引用方式 GB/T 7714	Kutuzov, Stanislav,Legrand, Michel,Preunkert, Susanne,et al. The Elbrus (Caucasus, Russia) ice core record - Part 2: history of desert dust deposition[J]. French National Research Institute for Sustainable Development,2019,19(22):14133-14148.
APA	Kutuzov, Stanislav.,Legrand, Michel.,Preunkert, Susanne.,Ginot, Patrick.,Mikhalenko, Vladimir.,...&Toropov, Pavel.(2019).The Elbrus (Caucasus, Russia) ice core record - Part 2: history of desert dust deposition.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(22),14133-14148.
MLA	Kutuzov, Stanislav,et al."The Elbrus (Caucasus, Russia) ice core record - Part 2: history of desert dust deposition".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.22(2019):14133-14148.