Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021

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 l...

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Authors: López-Cayuela, María Ángeles, Córdoba-Jabonero, Carmen, Bermejo Pantaleón, Diego, Sicard, Michaël, Salgueiro, Vanda, Molero, Francisco, Carvajal-Pérez, Clara V., Granados-Muñoz, María José, Comerón, Adolfo, Couto, Flavio T., Barragán, Rubén, Zorzano, María Paz, Bravo-Aranda, J. A., Muñoz-Porcar, Constantino, Costa, Maria João, Artíñano, Begoña, Rodríguez-Gómez, Alejandro, Bortoli, Daniele, Pujadas, Manuel, Abril-Gago, Jesús, Alados-Arboledas, Lucas, Guerrero-Rascado, Juan Luis
Format: article
Status:Published version
Publication Date:2023
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/337570
Online Access:http://hdl.handle.net/10261/337570
Access Level:Open access
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dc.title.none.fl_str_mv Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
title Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
spellingShingle Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
López-Cayuela, María Ángeles
title_short Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
title_full Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
title_fullStr Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
title_full_unstemmed Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
title_sort Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021
dc.creator.none.fl_str_mv López-Cayuela, María Ángeles
Córdoba-Jabonero, Carmen
Bermejo Pantaleón, Diego
Sicard, Michaël
Salgueiro, Vanda
Molero, Francisco
Carvajal-Pérez, Clara V.
Granados-Muñoz, María José
Comerón, Adolfo
Couto, Flavio T.
Barragán, Rubén
Zorzano, María Paz
Bravo-Aranda, J. A.
Muñoz-Porcar, Constantino
Costa, Maria João
Artíñano, Begoña
Rodríguez-Gómez, Alejandro
Bortoli, Daniele
Pujadas, Manuel
Abril-Gago, Jesús
Alados-Arboledas, Lucas
Guerrero-Rascado, Juan Luis
author López-Cayuela, María Ángeles
author_facet López-Cayuela, María Ángeles
Córdoba-Jabonero, Carmen
Bermejo Pantaleón, Diego
Sicard, Michaël
Salgueiro, Vanda
Molero, Francisco
Carvajal-Pérez, Clara V.
Granados-Muñoz, María José
Comerón, Adolfo
Couto, Flavio T.
Barragán, Rubén
Zorzano, María Paz
Bravo-Aranda, J. A.
Muñoz-Porcar, Constantino
Costa, Maria João
Artíñano, Begoña
Rodríguez-Gómez, Alejandro
Bortoli, Daniele
Pujadas, Manuel
Abril-Gago, Jesús
Alados-Arboledas, Lucas
Guerrero-Rascado, Juan Luis
author_role author
author2 Córdoba-Jabonero, Carmen
Bermejo Pantaleón, Diego
Sicard, Michaël
Salgueiro, Vanda
Molero, Francisco
Carvajal-Pérez, Clara V.
Granados-Muñoz, María José
Comerón, Adolfo
Couto, Flavio T.
Barragán, Rubén
Zorzano, María Paz
Bravo-Aranda, J. A.
Muñoz-Porcar, Constantino
Costa, Maria João
Artíñano, Begoña
Rodríguez-Gómez, Alejandro
Bortoli, Daniele
Pujadas, Manuel
Abril-Gago, Jesús
Alados-Arboledas, Lucas
Guerrero-Rascado, Juan Luis
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
European Commission
Fundação para a Ciência e a Tecnologia (Portugal)
Comunidad de Madrid
Junta de Andalucía
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description 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, Torrejón/Madrid and Barcelona in Spain, and Évora 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 ∼ 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 Évora, 0.28 at Torrejón/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 (∼ 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, Évora) and ∼ 1.0 km at Torrejón/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 (∼ 30 %) associated with the radiative effect of dust, with respect to that for the mass features (∼ 10 %) linked to air quality issues, along the overall dust event by crossing the IP.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
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dc.language.none.fl_str_mv Inglés
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Copernicus Publications
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spelling Vertical characterization of fine and coarse dust particles during an intense Saharan dust outbreak over the Iberian Peninsula in springtime 2021López-Cayuela, María ÁngelesCórdoba-Jabonero, CarmenBermejo Pantaleón, DiegoSicard, MichaëlSalgueiro, VandaMolero, FranciscoCarvajal-Pérez, Clara V.Granados-Muñoz, María JoséComerón, AdolfoCouto, Flavio T.Barragán, RubénZorzano, María PazBravo-Aranda, J. A.Muñoz-Porcar, ConstantinoCosta, Maria JoãoArtíñano, BegoñaRodríguez-Gómez, AlejandroBortoli, DanielePujadas, ManuelAbril-Gago, JesúsAlados-Arboledas, LucasGuerrero-Rascado, Juan LuisAn 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, Torrejón/Madrid and Barcelona in Spain, and Évora 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 ∼ 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 Évora, 0.28 at Torrejón/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 (∼ 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, Évora) and ∼ 1.0 km at Torrejón/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 (∼ 30 %) associated with the radiative effect of dust, with respect to that for the mass features (∼ 10 %) linked to air quality issues, along the overall dust event by crossing the IP.The authors are grateful for support from the Spanish Ministry of Science and Innovation (MICIN; grant nos. PID2020-117825GB-C21, PID2020-120015RB-I00, PID2019-104205GB-C21/AEI/10.13039/501100011033, PID2019-103886RB-I00/AEI/10.13039/501100011033, EQC2018-004686-P, CGL2017-90884-REDT, and CGL2017-85344-R), the Madrid Regional Government (grant no. Y2018/EMT-5177), the Andalusian Regional Government (grant nos. P20_00136 and P18-RT-3820), the University of Granada (grant no. A-RNM-430-UGR20, Singular Laboratory programme LS2022-1, Scientific Units of Excellence Program grant no. UCE-PP2017-02), and the EU H2020 programme (grant nos. 654109, 778349, 871115, 101008004, and 101086690). The EVO team is co-funded by Portuguese funds through the Fundação para a Ciência e a Tecnologia (FCT) within the framework of the ICT (grant nos. UIDB/04683/2020 and UIDP/04683/2020) and TOMAQAPA (grant no. PTDC/CTAMET/29678/2017) projects.Peer reviewedEuropean Geophysical SocietyCopernicus PublicationsMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)European CommissionFundação para a Ciência e a Tecnologia (Portugal)Comunidad de MadridJunta de AndalucíaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/337570reponame:DIGITAL.CSIC. 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