干旱区生态环境知识资源中心(Arid): Global transport of dust emitted from different regions of the Sahara

Arid

DOI	10.1016/j.atmosenv.2019.05.042
	Global transport of dust emitted from different regions of the Sahara
	Lamancusa, Carmen; Wagstrom, Kristina
通讯作者	Wagstrom, Kristina
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2019
卷号	214
英文摘要	An improved understanding of how emissions from different regions are transported globally is necessary to establish stronger causal relationships between particulate matter emissions and global scale circulation. This study uses the GEOS-Chem global chemical transport model to identify spatial differences in the transport of Saharan dust emitted from different regions in Northern Africa, during different seasons, and in different particle size modes. This study finds noticeable spatial differences in the transport of dust emitted from each region of the Sahara and during each season. Dust emitted from the northern regions of the Sahara undergoes 25% more latitudinal and 2% more longitudinal transport than dust emitted from the more southern regions. Dust originating from the central regions of the Sahara experiences 28% and 11% more longitudinal transport than dust from western and eastern regions, respectively. Dust emitted from the Sahara during the period from April to June travels 10%, 25%, and 17% percent further latitudinally, longitudinally, and vertically, respectively, than the annual average. As expected coarse mode particles travel shorter distances than fine mode particles. Rather than determining the regions which produce the most dust, we focus on identifying the regions producing the dust that is most extensively transported.
英文关键词	Saharan dust Particulate matter Long-range transport Source apportionment Intercontinental transport
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000487167900037
WOS关键词	LONG-RANGE TRANSPORT ; TROPICAL ATLANTIC-OCEAN ; AMBIENT AIR-POLLUTION ; PARTICULATE MATTER ; DESERT DUST ; PARTICLE-SIZE ; MINERAL DUST ; EXPOSURE ASSESSMENT ; TERM EXPOSURE ; HUMAN HEALTH
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/2XILL650/214509
作者单位	Univ Connecticut, Dept Chem & Biomol Engn, 191 Auditorium Rd,Unit 3222, Storrs, CT 06269 USA
推荐引用方式 GB/T 7714	Lamancusa, Carmen,Wagstrom, Kristina. Global transport of dust emitted from different regions of the Sahara[J],2019,214.
APA	Lamancusa, Carmen,&Wagstrom, Kristina.(2019).Global transport of dust emitted from different regions of the Sahara.ATMOSPHERIC ENVIRONMENT,214.
MLA	Lamancusa, Carmen,et al."Global transport of dust emitted from different regions of the Sahara".ATMOSPHERIC ENVIRONMENT 214(2019).