干旱区生态环境知识资源中心(Arid): Deglacial water-table decline in Southern California recorded by noble gas isotopes

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DOI	10.1038/s41467-019-13693-2
	Deglacial water-table decline in Southern California recorded by noble gas isotopes
	Seltzer, Alan M.1; Ng, Jessica 1; Danskin, Wesley R.2; Kulongoski, Justin T.1,2; Gannon, Riley S.2; Stute, Martin 3,4; Severinghaus, Jeffrey P.1
通讯作者	Seltzer, Alan M.
来源期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
出版年	2019
卷号	10
英文摘要	Constraining the magnitude of past hydrological change may improve understanding and predictions of future shifts in water availability. Here we demonstrate that water-table depth, a sensitive indicator of hydroclimate, can be quantitatively reconstructed using Kr and Xe isotopes in groundwater. We present the first-ever measurements of these dissolved noble gas isotopes in groundwater at high precision (<= 0.005 parts per thousand amu(-1); 1 sigma), which reveal depth-proportional signals set by gravitational settling in soil air at the time of recharge. Analyses of California groundwater successfully reproduce modern groundwater levels and indicate a 17.9 +/- 1.3 m (+/- 1 SE) decline in water-table depth in Southern California during the last deglaciation. This hydroclimatic transition from the wetter glacial period to more arid Holocene accompanies a surface warming of 6.2 +/- 0.6 degrees C (+/- 1 SE). This new hydroclimate proxy builds upon an existing paleo-temperature application of noble gases and may identify regions prone to future hydrological change.
类型	Article
语种	英语
国家	USA
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000502774400001
WOS关键词	POLAR ICE ; FRACTIONATION ; AIR ; DIFFUSION ; CLIMATE ; FIRN
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
EI主题词	2019-12-16
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311798
作者单位	1.Univ Calif San Diego, Scripps Inst Oceanog, 9500 Gilman Dr, La Jolla, CA 92093 USA; 2.US Geol Survey, Calif Water Sci Ctr, 4165 Spruance Rd, San Diego, CA 92101 USA; 3.Columbia Univ, Lamont Doherty Earth Observ, 61 Route 9W, Palisades, NY 10964 USA; 4.Barnard Coll, 3009 Broadway, New York, NY 10027 USA
推荐引用方式 GB/T 7714	Seltzer, Alan M.,Ng, Jessica,Danskin, Wesley R.,et al. Deglacial water-table decline in Southern California recorded by noble gas isotopes[J]. United States Geological Survey,2019,10.
APA	Seltzer, Alan M..,Ng, Jessica.,Danskin, Wesley R..,Kulongoski, Justin T..,Gannon, Riley S..,...&Severinghaus, Jeffrey P..(2019).Deglacial water-table decline in Southern California recorded by noble gas isotopes.NATURE COMMUNICATIONS,10.
MLA	Seltzer, Alan M.,et al."Deglacial water-table decline in Southern California recorded by noble gas isotopes".NATURE COMMUNICATIONS 10(2019).