干旱区生态环境知识资源中心(Arid): Analyzing two decades of dust events on the Southern Great Plains region of West Texas

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DOI	10.1016/j.apr.2021.101091
	Analyzing two decades of dust events on the Southern Great Plains region of West Texas
	Kelley, Mary C.; Ardon-Dryer, Karin
通讯作者	Ardon-Dryer, K (corresponding author), Texas Tech Univ, Dept Geosci, Atmospher Sci Grp, 3003 15th St, Lubbock, TX 79416 USA.
来源期刊	ATMOSPHERIC POLLUTION RESEARCH
ISSN	1309-1042
出版年	2021
卷号	12 期号:6
英文摘要	Blowing dust is a weather phenomenon common in many locations around the world. During these dust events, particle concentration increases causing visibilities to decrease, sometimes even down to 0, increasing chances of travel accidents and also cause health complications. The Southern Great Plains region of West Texas experiences many dust events annually. In this study, 420 dust events (including widespread dust, blowing dust, and dust storms) were analyzed over 2000-2019. PM2.5 concentrations during these dust events showed a unimodal diurnal distribution with a peak in the afternoon. Most of the dust events occur during the spring and summer months and La Nin similar to a period. Separation of these events based on their meteorological cause (convective and synoptic), found that most (66.4%) were caused by a synoptic disturbance, mainly a cold front. Synoptic dust events occurred all year round, but mainly during spring (March-April), while convective, which accounts for 31% of the dust events, had the highest occurrence during May-July. Most of the synoptic events occurred in the afternoon while convective were in the evening. Meteorological comparison between convective and synoptic showed that synoptic events were associated with lower temperatures and relative humidity values, but with higher wind speeds and gusts. Comparison of PM2.5 concentrations found a different impact on air quality. Out of all the synoptic dust events, only 12 events exceeded the EPA recommended PM2.5 daily threshold values, while none of the convective dust events were above that threshold, perhaps due to their short duration (less than an hour).
英文关键词	Southern great plains Dust events Synoptic and convective dust events PM25 Air quality
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000663535100001
WOS关键词	SOUTHWESTERN UNITED-STATES ; BLOWING DUST ; DESERT DUST ; DIURNAL PATTERNS ; RISK-ASSESSMENT ; HEALTH IMPACTS ; WIND EROSION ; AFRICAN DUST ; STORMS ; PM2.5
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349655
作者单位	[Kelley, Mary C.; Ardon-Dryer, Karin] Texas Tech Univ, Dept Geosci, Atmospher Sci Grp, Lubbock, TX 79409 USA
推荐引用方式 GB/T 7714	Kelley, Mary C.,Ardon-Dryer, Karin. Analyzing two decades of dust events on the Southern Great Plains region of West Texas[J],2021,12(6).
APA	Kelley, Mary C.,&Ardon-Dryer, Karin.(2021).Analyzing two decades of dust events on the Southern Great Plains region of West Texas.ATMOSPHERIC POLLUTION RESEARCH,12(6).
MLA	Kelley, Mary C.,et al."Analyzing two decades of dust events on the Southern Great Plains region of West Texas".ATMOSPHERIC POLLUTION RESEARCH 12.6(2021).