气候变化领域集成服务门户(CCPortal): Vertical characterization of fine and coarse dust particles duringan intense Saharan dust outbreak over the Iberian Peninsula inspringtime 2021

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DOI	10.5194/acp-23-143-2023
	Vertical characterization of fine and coarse dust particles duringan intense Saharan dust outbreak over the Iberian Peninsula inspringtime 2021
	Angeles Lopez-Cayuela, Maria; Cordoba-Jabonero, Carmen; Bermejo-Pantaleon, Diego; Sicard, Michael; Salgueiro, Vanda; Molero, Francisco; Violeta Carvajal-Perez, Clara; Jose Granados-Munoz, Maria; Comeron, Adolfo; Couto, Flavio T.; Barragan, Ruben; Zorzano, Maria-Paz; Antonio Bravo-Aranda, Juan; Munoz-Porcar, Constantino; Joao Costa, Maria; Artinano, Begona; Rodriguez-Gomez, Alejandro; Bortoli, Daniele; Pujadas, Manuel; Abril-Gago, Jesus; Alados-Arboledas, Lucas; Luis Guerrero-Rascado, Juan
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	143
结束页码	161
卷号	23 期号:1 页码:19
英文摘要	An intense and long-lasting Saharan dust outbreak crossed the Iberian Peninsula (IP) from the southwest (SW) to the northeast (NE) from 25 March until 7 April 2021. This work aims to assess the optical and mass contribution of both fine and coarse dust particles along their transport. Five Iberian lidar stations were monitoring the transport and evolution of the Saharan dust particles, i.e. El Arenosillo/Huelva, Granada, Torrejon/Madrid and Barcelona in Spain, and evora in Portugal. The particular meteorological conditions determined the aerosol scenario along the overall dust event, differing in the first part of the event (25-31 March), in which the strongest dust incidence occurred on 29-31 March at the south and central stations and 1 April at Barcelona, from the second one (1-7 April). The use of the two-step POLIPHON algorithm showed the relevance of using polarized lidar measurements for separating the aerosol properties of dust fine and coarse particles as an added value. Both the fine dust (Df) and coarse dust (Dc) components of the total particle backscatter coefficient (total dust, DD = Dc + Df) were separately derived. The dust plume was well-mixed with height and no significant differences were found in the vertical structure of both the Dc and Df particle backscatter coefficients. From the beginning of the dust outbreak until 1 April, the vertical Df / DD mass ratio was nearly constant in time at each station and also in altitude with values of & SIM; 10 %. Moreover, the mean dust optical depth at 532 nm was decreasing along that dust pathway, reporting values from SW to NE stations of 0.34 at El Arenosillo/Huelva, 0.28 at Granada, 0.20 at evora, 0.28 at Torrejon/Madrid, and 0.14 at Barcelona, although its Df / DD ratio remained almost constant (28 %-30 %). A similar pattern was found for the total dust mass loading and its Df / DD ratio, i.e. mostly decreasing mean mass values were reported, being constant in its Df / DD ratio (& SIM; 10 %) along the SW-NE dust pathway. In addition, the episode-mean centre-of-mass height increased with latitude overall, showing a high variability, being greater than 0.5 km at the southern sites (El Arenosillo/Huelva, Granada, evora) and & SIM; 1.0 km at Torrejon/Madrid and Barcelona. However, despite the relatively high intensity of the dust intrusion, the expected ageing of the dust particles was hardly observed, by taking into account the minor changes found in the contribution and properties of the coarse and fine dust particles. This is on the basis that the IP is relatively close to the Saharan dust sources and then, under certain dust transport conditions, any potential ageing processes in the dust particles remained unappreciated. The following must be highlighted: the different relative contribution of the fine dust particles to the total dust found for their optical properties (& SIM; 30 %) associated with the radiative effect of dust, with respect to that for the mass features (& SIM; 10 %) linked to air quality issues, along the overall dust event by crossing the IP.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000908050000001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273217
作者单位	Universidad de Cordoba; Universidad de Jaen; University of Granada; Instituto Interuniversitario de Investigacion del Sistema Tierra en Andalucia; University of Granada; Universitat Politecnica de Catalunya; Institut d'Estudis Espacials de Catalunya (IEEC); Universitat Politecnica de Catalunya; University of Evora; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Centro de Astrobiologia (INTA)
推荐引用方式 GB/T 7714	Angeles Lopez-Cayuela, Maria,Cordoba-Jabonero, Carmen,Bermejo-Pantaleon, Diego,et al. Vertical characterization of fine and coarse dust particles duringan intense Saharan dust outbreak over the Iberian Peninsula inspringtime 2021[J],2023,23(1):19.
APA	Angeles Lopez-Cayuela, Maria.,Cordoba-Jabonero, Carmen.,Bermejo-Pantaleon, Diego.,Sicard, Michael.,Salgueiro, Vanda.,...&Luis Guerrero-Rascado, Juan.(2023).Vertical characterization of fine and coarse dust particles duringan intense Saharan dust outbreak over the Iberian Peninsula inspringtime 2021.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),19.
MLA	Angeles Lopez-Cayuela, Maria,et al."Vertical characterization of fine and coarse dust particles duringan intense Saharan dust outbreak over the Iberian Peninsula inspringtime 2021".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):19.