干旱区生态环境知识资源中心(Arid): Using strontium isotopes to trace dust from a drying Great Salt Lake to adjacent urban areas and mountain snowpack

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DOI	10.1088/1748-9326/abbfc4
	Using strontium isotopes to trace dust from a drying Great Salt Lake to adjacent urban areas and mountain snowpack
	Carling, Gregory T.; Fernandez, Diego P.; Rey, Kevin A.; Hale, Colin A.; Goodman, Michael M.; Nelson, Stephen T.
通讯作者	Carling, GT (corresponding author), Brigham Young Univ, Dept Geol Sci, Provo, UT 84602 USA.
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2020
卷号	15 期号:11
英文摘要	With the desiccation of saline lakes around the globe, it is increasingly important to quantify the impacts of playa dust on downwind urban areas and mountain snowpack. In this study, we used Sr-87/Sr-86 ratios of carbonate minerals to trace dust from playas to urban areas and mountain snowpack. We focused on dust contributions from Great Salt Lake (GSL), in northern Utah, USA, which recently reached historic lows in water levels exposing large areas of dry lakebed. We measured Sr-87/Sr-86 ratios in dust from GSL, Sevier Dry Lake (SDL), and other playas across western Utah and compared them to Sr-87/Sr-86 ratios in dust across the urban Wasatch Front and mountain snowpack collected seasonally from 2015-2018. Dust from GSL had unique Sr-87/Sr-86 ratios (similar to 0.715) relative to SDL (similar to 0.710) and other playas (similar to 0.711 to 0.712), providing a potentially powerful tool for tracing GSL dust to downwind areas. Dust deposition had Sr-87/Sr-86 ratios ranging from similar to 0.710 to similar to 0.712 in the urban area and snowpack, within the range of playa dust sources. Using a simple two-endmember mixing model considering only GSL and SDL as sources, GSL contributed 5% of the dust flux to the southern Wasatch Front (Provo) and between 30%-34% of the dust flux to the northern Wasatch Front (Salt Lake City, Ogden, and Logan). For mountain snowpack, GSL contributed 11% of the dust flux to the Uinta Mountains and 22% of the dust flux to the Wasatch Mountains. Dust transport modeling could be combined with Sr-87/Sr-86 fingerprints for source apportionment in northern Utah and other areas that are impacted by regional playa dust.
英文关键词	Mineral dust playas Sr-87/Sr-86 carbonate minerals snowpack urban dust Great Salt Lake
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000591793100001
WOS关键词	UINTA MOUNTAINS ; AEOLIAN DUST ; UTAH ; DEPOSITION ; SOIL ; DISTURBANCE ; DESERTS ; IMPACTS ; CLIMATE ; SYSTEM
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327610
作者单位	[Carling, Gregory T.; Rey, Kevin A.; Hale, Colin A.; Goodman, Michael M.; Nelson, Stephen T.] Brigham Young Univ, Dept Geol Sci, Provo, UT 84602 USA; [Fernandez, Diego P.] Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA
推荐引用方式 GB/T 7714	Carling, Gregory T.,Fernandez, Diego P.,Rey, Kevin A.,et al. Using strontium isotopes to trace dust from a drying Great Salt Lake to adjacent urban areas and mountain snowpack[J],2020,15(11).
APA	Carling, Gregory T.,Fernandez, Diego P.,Rey, Kevin A.,Hale, Colin A.,Goodman, Michael M.,&Nelson, Stephen T..(2020).Using strontium isotopes to trace dust from a drying Great Salt Lake to adjacent urban areas and mountain snowpack.ENVIRONMENTAL RESEARCH LETTERS,15(11).
MLA	Carling, Gregory T.,et al."Using strontium isotopes to trace dust from a drying Great Salt Lake to adjacent urban areas and mountain snowpack".ENVIRONMENTAL RESEARCH LETTERS 15.11(2020).