干旱区生态环境知识资源中心(Arid): Characterization of Eastern Mediterranean dust storms by area of origin; North Africa vs. Arabian Peninsula

Arid

DOI	10.1016/j.atmosenv.2018.10.034
	Characterization of Eastern Mediterranean dust storms by area of origin; North Africa vs. Arabian Peninsula
	Bodenheimer, Shalev 1; Lensky, Itamar M.2; Dayan, Uri 1
通讯作者	Bodenheimer, Shalev
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2019
卷号	198 页码:158-165
英文摘要	The Eastern Mediterranean (EM) Basin is exposed to frequent dust storms during all seasons but summer. The dust is originating from two large sources: a western source, namely North African (mainly Sahara Desert) and an eastern source, the Arabian Peninsula. The characteristics of 53 dust storms (2007-2013) were examined in relation to their origin - western (30) vs. eastern (23). Analysis was done using ground monitoring stations, satellite data and subjective synoptic classification. Significantly higher ground concentration (722 mu g/m(3) for western events vs 242 mu g/m(3) for eastern events), higher Aerosol Optical Thickness (AOT) levels (0.50 for western events vs 0.32 for eastern events), longer duration (25 h for western events vs 15 h for eastern events) and stronger surface wind speed (6 m/s for western events vs 4 m/s for eastern events) were found for western origin dust storms. Dust top height was higher for eastern origin events (1.7 km for western events vs 2.3 km for eastern events, non significant). The associated synoptic circulation types dominant during the western origin dust storms are winter cold-core cyclones while for the eastern origin events the Red Sea Trough is the dominant type and occur mainly during fall. The main assumed reasons for these distinguished characteristics (higher ground concentration, AOT levels, longer duration, and surface wind speed) are that western origin cyclones can induce both mobilization and transport of dust. Together with longer dust path and local sources contribution will create a potential for high concentration and long-lasting event as compared to eastern origin events where there is a separation between main mobilization process that occur during summer and the transport westwards necessary to deliver dust to the EM and occurs during non-summer events.
英文关键词	Dust storms Eastern Mediterranean Synoptic circulation
类型	Article
语种	英语
国家	Israel
收录类别	SCI-E
WOS记录号	WOS:000455693900015
WOS关键词	ATMOSPHERIC CIRCULATION ; SATELLITE-OBSERVATIONS ; AIR-POLLUTION ; PM10 ; OUTBREAKS ; PATTERNS ; PM2.5 ; AOD ; TRANSPORT ; AEROSOLS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214488
作者单位	1.Hebrew Univ Jerusalem, Dept Geog, Jerusalem, Israel; 2.Bar Ilan Univ, Dept Geog & Environm, Ramat Gan, Israel
推荐引用方式 GB/T 7714	Bodenheimer, Shalev,Lensky, Itamar M.,Dayan, Uri. Characterization of Eastern Mediterranean dust storms by area of origin; North Africa vs. Arabian Peninsula[J]. Hebrew University of Jerusalem,2019,198:158-165.
APA	Bodenheimer, Shalev,Lensky, Itamar M.,&Dayan, Uri.(2019).Characterization of Eastern Mediterranean dust storms by area of origin; North Africa vs. Arabian Peninsula.ATMOSPHERIC ENVIRONMENT,198,158-165.
MLA	Bodenheimer, Shalev,et al."Characterization of Eastern Mediterranean dust storms by area of origin; North Africa vs. Arabian Peninsula".ATMOSPHERIC ENVIRONMENT 198(2019):158-165.