干旱区生态环境知识资源中心(Arid): The Impact of Intense Winter Saharan Dust Events on PM and Optical Properties at Urban Sites in the Southeast of the Iberian Peninsula

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DOI	10.3390/atmos12111469
	The Impact of Intense Winter Saharan Dust Events on PM and Optical Properties at Urban Sites in the Southeast of the Iberian Peninsula
	Lopez-Caravaca, Alba; Castaner, Ramon; Clemente, Alvaro; Yubero, Eduardo; Galindo, Nuria; Crespo, Javier; Francisco Nicolas, Jose
通讯作者	Nicolas, JF (corresponding author), Miguel Hernandez Univ, Dept Appl Phys, Atmospher Pollut Lab LCA, Ave Univ S-N, Elche 03202, Spain.
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2021
卷号	12 期号:11
英文摘要	The influence of three Saharan dust events (SDE) on particulate matter (PM) concentrations and aerosol optical properties (AOP) during February 2021 was studied. The physical characteristics of the African aerosol were different for each episode. Therefore, the impacts of the three events on PM and AOP were analyzed separately. The monitoring sites were placed in Elche, in the southeast of the Iberian Peninsula. The sites can be classified as urban background locations. The procedure used to obtain the contribution of SDE to PM10 mass concentrations was the 40th percentile method. Nearly half of the days during the study period were under the influence of Saharan air masses. The average contribution of mineral dust (MD) to the PM10 mean concentration was ~50%, which was the highest contribution during the month of February in the last 14 years. The results show that those events characterized by a high input of fine particles (PM1 and PM2.5) caused larger increases in the absorption (sigma(ap)) and scattering (sigma(sp)) coefficients than SDE in which coarse particles predominated. Nevertheless, as expected, SAE (Scattering Angstrom Exponent) values were lowest during these episodes. AAE (Absorption Angstrom Exponent) values during SDE were slightly higher than those observed in the absence of African dust, suggesting some contribution from MD to the absorption process.
英文关键词	PM10 desert dust urban aerosol optical properties
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:000723356500001
WOS关键词	AEROSOL SCATTERING PROPERTIES ; AFRICAN DUST ; AIR-QUALITY ; ABSORPTION PROPERTIES ; RADIATIVE PROPERTIES ; PARTICULATE MATTER ; COARSE PARTICLES ; MINERAL DUST ; BLACK CARBON ; COASTAL SITE
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/2XILL650/373779
作者单位	[Lopez-Caravaca, Alba; Castaner, Ramon; Clemente, Alvaro; Yubero, Eduardo; Galindo, Nuria; Crespo, Javier; Francisco Nicolas, Jose] Miguel Hernandez Univ, Dept Appl Phys, Atmospher Pollut Lab LCA, Ave Univ S-N, Elche 03202, Spain
推荐引用方式 GB/T 7714	Lopez-Caravaca, Alba,Castaner, Ramon,Clemente, Alvaro,et al. The Impact of Intense Winter Saharan Dust Events on PM and Optical Properties at Urban Sites in the Southeast of the Iberian Peninsula[J],2021,12(11).
APA	Lopez-Caravaca, Alba.,Castaner, Ramon.,Clemente, Alvaro.,Yubero, Eduardo.,Galindo, Nuria.,...&Francisco Nicolas, Jose.(2021).The Impact of Intense Winter Saharan Dust Events on PM and Optical Properties at Urban Sites in the Southeast of the Iberian Peninsula.ATMOSPHERE,12(11).
MLA	Lopez-Caravaca, Alba,et al."The Impact of Intense Winter Saharan Dust Events on PM and Optical Properties at Urban Sites in the Southeast of the Iberian Peninsula".ATMOSPHERE 12.11(2021).