干旱区生态环境知识资源中心(Arid): Dust emission source characterization for visibility hazard assessment on Lordsburg Playa in Southwestern New Mexico, USA

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DOI	10.1186/s40677-020-00171-x
	Dust emission source characterization for visibility hazard assessment on Lordsburg Playa in Southwestern New Mexico, USA
	Van Pelt, R. Scott; Tatarko, John; Gill, Thomas E.; Chang, Chunping; Li, Junran; Eibedingil, Iyasu G.; Mendez, Marcos
通讯作者	Van Pelt, RS (corresponding author), USDA Agr Res Serv, 302 W Interstate 20, Big Spring, TX 79720 USA.
来源期刊	GEOENVIRONMENTAL DISASTERS
EISSN	2197-8670
出版年	2020
卷号	7 期号:1
英文摘要	In drylands around the world, ephemeral lakes (playas) are common. Dry, wind-erodible playa sediments are potent local and regional sources of dust and PM10 (airborne particles with diameters less than 10 mu m). Dust clouds often cause sudden and/or prolonged loss of visibility to travelers on downwind roadways. Lordsburg Playa, in southwestern New Mexico, USA is bisected by Interstate Highway 10. Dust storms emanating from the playa have been responsible for numerous visibility-related road closures (including 39 road closures between 2012 and 2019) causing major economic losses, in addition to well over a hundred dust-related vehicle crashes causing at least 41 lost lives in the last 53years. In order to improve understanding of the surfaces responsible for the dust emissions, we investigated the critical wind friction velocity thresholds and the dust emissivities of surfaces representing areas typical of Lordsburg Playa's stream deltas, shorelines, and ephemerally flooded lakebed using a Portable In-Situ Wind ERosion Laboratory (PI-SWERL). Mean threshold friction velocities for PM10 entrainment ranged from less than 0.30ms(-1) for areas in the delta and shoreline to greater than 0.55ms(-1) for ephemerally flooded areas of the lakebed. Similarly, we quantified mean PM10 vertical flux rates ranging from less than 500 mu gm(-2)s(-1) for ephemerally flooded areas of lakebed to nearly 25,000 mu gm(-2)s(-1) for disturbed delta surfaces. The unlimited PM10 supply of the relatively coarse sediments along the western shoreline is problematic and indicates that this may be the source area for longer-term visibility reducing dust events and should be a focus area for dust mitigation efforts.
英文关键词	PM10 Dust storms Visibility Highway safety Surface emissivity Wind erosion
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000642286300001
WOS关键词	MOJAVE DESERT ; PI-SWERL ; CALIFORNIA ; SEDIMENT ; EROSION ; LAKE
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352586
作者单位	[Van Pelt, R. Scott] USDA Agr Res Serv, 302 W Interstate 20, Big Spring, TX 79720 USA; [Tatarko, John] USDA Agr Res Serv, Ft Collins, CO USA; [Gill, Thomas E.] Univ Texas El Paso, Dept Geol Sci & Environm, Sci & Engn Program, El Paso, TX USA; [Chang, Chunping] Hebei Normal Univ, Shijiazhuang, Hebei, Peoples R China; [Li, Junran] Univ Tulsa, Dept Geosci, Tulsa, OK USA; [Eibedingil, Iyasu G.] Univ Texas El Paso, Environm Sci & Engn Program, El Paso, TX USA; [Mendez, Marcos] Univ Texas El Paso, Dept Geol Sci, El Paso, TX 79968 USA
推荐引用方式 GB/T 7714	Van Pelt, R. Scott,Tatarko, John,Gill, Thomas E.,et al. Dust emission source characterization for visibility hazard assessment on Lordsburg Playa in Southwestern New Mexico, USA[J],2020,7(1).
APA	Van Pelt, R. Scott.,Tatarko, John.,Gill, Thomas E..,Chang, Chunping.,Li, Junran.,...&Mendez, Marcos.(2020).Dust emission source characterization for visibility hazard assessment on Lordsburg Playa in Southwestern New Mexico, USA.GEOENVIRONMENTAL DISASTERS,7(1).
MLA	Van Pelt, R. Scott,et al."Dust emission source characterization for visibility hazard assessment on Lordsburg Playa in Southwestern New Mexico, USA".GEOENVIRONMENTAL DISASTERS 7.1(2020).