Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain

This paper presents the estimation of the hygroscopic growth parameter of atmospheric aerosols retrieved with a multi-wavelength lidar, a micro-pulse lidar (MPL) and daily radiosoundings in the coastal region ofBarcelona, Spain. The hygroscopic growth parameter, γ , parameterizes the magnitude of th...

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Autores: Sicard, Michaël|||0000-0001-8287-9693, Oliveira, Daniel Camilo Fortunato dos Santos|||0000-0001-7461-7765, Muñoz Porcar, Constantino|||0000-0002-6543-119X, Gil Díaz, Cristina, Comerón Tejero, Adolfo|||0000-0001-6886-3679, Rodríguez Gómez, Alejandro Antonio|||0000-0002-9209-0685, Dios Otín, Víctor Federico|||0000-0002-6720-8514
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/373298
Acceso en línea:https://hdl.handle.net/2117/373298
https://dx.doi.org/10.5194/acp-22-7681-2022
Access Level:acceso abierto
Palabra clave:Atmospheric aerosols
Optical radar
Multi-wavelength lidar
Micro-pulse lidar (MPL)
Hygroscopic growth
Aerosols atmosfèrics
Radar òptic
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
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oai_identifier_str oai:upcommons.upc.edu:2117/373298
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
title Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
spellingShingle Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
Sicard, Michaël|||0000-0001-8287-9693
Atmospheric aerosols
Optical radar
Multi-wavelength lidar
Micro-pulse lidar (MPL)
Hygroscopic growth
Aerosols atmosfèrics
Radar òptic
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
title_short Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
title_full Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
title_fullStr Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
title_full_unstemmed Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
title_sort Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
dc.creator.none.fl_str_mv Sicard, Michaël|||0000-0001-8287-9693
Oliveira, Daniel Camilo Fortunato dos Santos|||0000-0001-7461-7765
Muñoz Porcar, Constantino|||0000-0002-6543-119X
Gil Díaz, Cristina
Comerón Tejero, Adolfo|||0000-0001-6886-3679
Rodríguez Gómez, Alejandro Antonio|||0000-0002-9209-0685
Dios Otín, Víctor Federico|||0000-0002-6720-8514
author Sicard, Michaël|||0000-0001-8287-9693
author_facet Sicard, Michaël|||0000-0001-8287-9693
Oliveira, Daniel Camilo Fortunato dos Santos|||0000-0001-7461-7765
Muñoz Porcar, Constantino|||0000-0002-6543-119X
Gil Díaz, Cristina
Comerón Tejero, Adolfo|||0000-0001-6886-3679
Rodríguez Gómez, Alejandro Antonio|||0000-0002-9209-0685
Dios Otín, Víctor Federico|||0000-0002-6720-8514
author_role author
author2 Oliveira, Daniel Camilo Fortunato dos Santos|||0000-0001-7461-7765
Muñoz Porcar, Constantino|||0000-0002-6543-119X
Gil Díaz, Cristina
Comerón Tejero, Adolfo|||0000-0001-6886-3679
Rodríguez Gómez, Alejandro Antonio|||0000-0002-9209-0685
Dios Otín, Víctor Federico|||0000-0002-6720-8514
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Atmospheric aerosols
Optical radar
Multi-wavelength lidar
Micro-pulse lidar (MPL)
Hygroscopic growth
Aerosols atmosfèrics
Radar òptic
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
topic Atmospheric aerosols
Optical radar
Multi-wavelength lidar
Micro-pulse lidar (MPL)
Hygroscopic growth
Aerosols atmosfèrics
Radar òptic
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
description This paper presents the estimation of the hygroscopic growth parameter of atmospheric aerosols retrieved with a multi-wavelength lidar, a micro-pulse lidar (MPL) and daily radiosoundings in the coastal region ofBarcelona, Spain. The hygroscopic growth parameter, γ , parameterizes the magnitude of the scattering enhancement in terms of the backscatter coefficient following Hänel parameterization. After searching for time-colocated lidar and radiosounding measurements (performed twice a day, all year round at 00:00 and 12:00 UTC), a strict criterion-based procedure (limiting the variations of magnitudes such as water vapor mixing ratio (WMVR), potential temperature, wind speed and direction) is applied to select only cases of aerosol hygroscopic growth. A spectral analysis (at the wavelengths of 355, 532 and 1064 nm) is performed with the multi-wavelength lidar, and a climatological one, at the wavelength of 532 nm, with the database of both lidars. The spectral analysis shows that below 2 km the regime of local pollution and sea salt γ decreases with increasing wavelengths. Sincethe 355 nm wavelength is sensitive to smaller aerosols, this behavior could indicate slightly more hygroscopic aerosols present at smaller size ranges. Above 2 km (the regime of regional pollution and residual sea salt) the values of γ at 532 nm are nearly the same as those below 2 km, and its spectral behavior is flat. This analysis and others from the literature are put together in a table presenting, for the first time, a spectral analysis of the hygroscopic growth parameter of a large variety of atmospheric aerosol hygroscopicities ranging from low (pure mineral dust, γ <0.2) to high (pure sea salt, γ > 1.0) hygroscopicity. The climatological analysis shows that, at 532 nm, γ is rather constant all year round and has a large monthly standard deviation, suggesting the presence of aerosols with different hygroscopic properties all year round. The annual γ is 0.55 ± 0.23. The height of the layer where hygroscopic growth was calculated shows an annual cycle with a maximum in summer and a minimum in winter. Former works describing the presence of recirculation layers of pollutants injected at various heights above the planetary boundary layer (PBL) may explain why γ , unlike the height of the layer where hygroscopic growth was calculated, is not season-dependent. The subcategorization of the whole database into No cloud and Below-cloud cases reveals a large difference of γ in autumn between both categories (0.71 and 0.33, respectively), possibly attributed to a depletion of inorganics at the point of activation into cloud condensation nuclei (CCN) in the Below-cloud cases. Our work calls for more in situ measurements to synergetically complete such studies based on remote sensing.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-06-14
2022
2022-09-22
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/373298
https://dx.doi.org/10.5194/acp-22-7681-2022
url https://hdl.handle.net/2117/373298
https://dx.doi.org/10.5194/acp-22-7681-2022
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-103886RB-I00 SINERGIA DE TELEDETECCION PASIVA Y ACTIVA PARA LA INVESTIGACION DE LAS INTERACIONES AEROSOLES-NUBES (RESA-CI)
European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 654109 Aerosols, Clouds, and Trace gases Research InfraStructure
European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 778349 Development of GRASP radiative transfer code for the retrieval of aerosol microphysics vertical-profiles from space measurements and its impact in ACE mission
European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 871115 Aerosol, Clouds and Trace Gases Research Infrastructure Implementation Project
European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 101008004 Solutions for Sustainable Access to Atmospheric Research Facilities
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv European Geosciences Union (EGU)
publisher.none.fl_str_mv European Geosciences Union (EGU)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, SpainSicard, Michaël|||0000-0001-8287-9693Oliveira, Daniel Camilo Fortunato dos Santos|||0000-0001-7461-7765Muñoz Porcar, Constantino|||0000-0002-6543-119XGil Díaz, CristinaComerón Tejero, Adolfo|||0000-0001-6886-3679Rodríguez Gómez, Alejandro Antonio|||0000-0002-9209-0685Dios Otín, Víctor Federico|||0000-0002-6720-8514Atmospheric aerosolsOptical radarMulti-wavelength lidarMicro-pulse lidar (MPL)Hygroscopic growthAerosols atmosfèricsRadar òpticÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::TeledeteccióThis paper presents the estimation of the hygroscopic growth parameter of atmospheric aerosols retrieved with a multi-wavelength lidar, a micro-pulse lidar (MPL) and daily radiosoundings in the coastal region ofBarcelona, Spain. The hygroscopic growth parameter, γ , parameterizes the magnitude of the scattering enhancement in terms of the backscatter coefficient following Hänel parameterization. After searching for time-colocated lidar and radiosounding measurements (performed twice a day, all year round at 00:00 and 12:00 UTC), a strict criterion-based procedure (limiting the variations of magnitudes such as water vapor mixing ratio (WMVR), potential temperature, wind speed and direction) is applied to select only cases of aerosol hygroscopic growth. A spectral analysis (at the wavelengths of 355, 532 and 1064 nm) is performed with the multi-wavelength lidar, and a climatological one, at the wavelength of 532 nm, with the database of both lidars. The spectral analysis shows that below 2 km the regime of local pollution and sea salt γ decreases with increasing wavelengths. Sincethe 355 nm wavelength is sensitive to smaller aerosols, this behavior could indicate slightly more hygroscopic aerosols present at smaller size ranges. Above 2 km (the regime of regional pollution and residual sea salt) the values of γ at 532 nm are nearly the same as those below 2 km, and its spectral behavior is flat. This analysis and others from the literature are put together in a table presenting, for the first time, a spectral analysis of the hygroscopic growth parameter of a large variety of atmospheric aerosol hygroscopicities ranging from low (pure mineral dust, γ <0.2) to high (pure sea salt, γ > 1.0) hygroscopicity. The climatological analysis shows that, at 532 nm, γ is rather constant all year round and has a large monthly standard deviation, suggesting the presence of aerosols with different hygroscopic properties all year round. The annual γ is 0.55 ± 0.23. The height of the layer where hygroscopic growth was calculated shows an annual cycle with a maximum in summer and a minimum in winter. Former works describing the presence of recirculation layers of pollutants injected at various heights above the planetary boundary layer (PBL) may explain why γ , unlike the height of the layer where hygroscopic growth was calculated, is not season-dependent. The subcategorization of the whole database into No cloud and Below-cloud cases reveals a large difference of γ in autumn between both categories (0.71 and 0.33, respectively), possibly attributed to a depletion of inorganics at the point of activation into cloud condensation nuclei (CCN) in the Below-cloud cases. Our work calls for more in situ measurements to synergetically complete such studies based on remote sensing.This research was funded by the Spanish Ministry of Science and Innovation (grant nos. PID2019-103886RB-I00) and the H2020 program from the European Union (grant nos. 654109, 778349, 871115 and 101008004).Peer ReviewedEuropean Geosciences Union (EGU)20222022-06-1420222022-09-22journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/373298https://dx.doi.org/10.5194/acp-22-7681-2022reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-103886RB-I00 SINERGIA DE TELEDETECCION PASIVA Y ACTIVA PARA LA INVESTIGACION DE LAS INTERACIONES AEROSOLES-NUBES (RESA-CI)European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 654109 Aerosols, Clouds, and Trace gases Research InfraStructureEuropean Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 778349 Development of GRASP radiative transfer code for the retrieval of aerosol microphysics vertical-profiles from space measurements and its impact in ACE missionEuropean Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 871115 Aerosol, Clouds and Trace Gases Research Infrastructure Implementation ProjectEuropean Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 101008004 Solutions for Sustainable Access to Atmospheric Research Facilitiesopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3732982026-05-27T15:37:01Z
score 15,198674

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