Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event
An unprecedented extreme Saharan dust event was registered in winter time from 20 to 23 February 2017 over the Iberian Peninsula (IP). We report on aerosol optical properties observed under this extreme dust intrusion through passive and active remote sensing techniques. For that, AERONET (AErosol R...
Published in: | Atmospheric Research |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2019
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Online Access: | http://hdl.handle.net/2117/167399 https://doi.org/10.1016/j.atmosres.2019.06.007 |
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ftupcatalunyair:oai:upcommons.upc.edu:2117/167399 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
op_collection_id |
ftupcatalunyair |
language |
English |
topic |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Extreme Saharan dust intrusion Particle optical properties Sun-photometer Multi-wavelength lidar Dust forecast model Model evaluation Vertical distribution Teledetecció |
spellingShingle |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Extreme Saharan dust intrusion Particle optical properties Sun-photometer Multi-wavelength lidar Dust forecast model Model evaluation Vertical distribution Teledetecció Fernández García, Alfonso Javier Sicard, Michaël Costa, Maria João Guerrero Rascado, Juan Luis Gomez Amo, J.L. Molero, Francisco Barragán Cuesta, Rubén Basart, Sara Bortoli, D. Bedoya Velásquez, Andrés Esteban Granados Muñoz, María José Martínez Lozano, José Antonio Artiñano, Begoña Muñoz Porcar, Constantino Román Díez, Roberto Rocadenbosch Burillo, Francisco Benavent Oltra, José Antonio Rodríguez Gómez, Alejandro Antonio Alados Arboledas, Lucas Comerón Tejero, Adolfo Pujadas Cordero, Manuel Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event |
topic_facet |
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Extreme Saharan dust intrusion Particle optical properties Sun-photometer Multi-wavelength lidar Dust forecast model Model evaluation Vertical distribution Teledetecció |
description |
An unprecedented extreme Saharan dust event was registered in winter time from 20 to 23 February 2017 over the Iberian Peninsula (IP). We report on aerosol optical properties observed under this extreme dust intrusion through passive and active remote sensing techniques. For that, AERONET (AErosol RObotic NETwork) and EARLINET (European Aerosol Research LIdar NETwork) databases are used. The sites considered are: Barcelona (41.38°N, 2.17°E), Burjassot (39.51°N, 0.42°W), Cabo da Roca (38.78°N, 9.50°W), Évora (38.57°N, 7.91°W), Granada (37.16°N, 3.61°W) and Madrid (40.45°N, 3.72°W). Large aerosol optical depths (AOD) and low Ångström exponents (AE) are observed. An AOD of 2.0 at 675¿nm is reached in several stations. A maximum peak of 2.5 is registered in Évora. During and around the peak of AOD, AEs close to 0 and even slightly negative are measured. With regard to vertically-resolved aerosol optical properties, particle backscatter coefficients as high as 15¿Mm-1¿sr-1 at 355¿nm are recorded at the lidar stations. Layer-mean lidar ratios are found in the range 40–55¿sr at 355¿nm and 34–61¿sr at 532¿nm during the event. The particle depolarization ratios are found to be constant inside the dust layer, and consistent from one site to another. Layer-mean values vary in the range 0.19–0.31. Another remarkable aspect of the event is the limited vertical distribution of the dust plume which never exceeds 5¿km. The extreme aspect of the event also presented a nice case for testing the ability of two dust forecast models, BSC-DREAM8b and NMMB/BSC-Dust, to reproduce the arrival, the vertical distribution and the intensity of the dust plume over a long-range transport region. In the particular case of the February 2017 dust event, we found a large underestimation in the forecast of the extinction coefficient provided by BSC-DREAM8b at all heights independently of the site. In contrast NMMB/BSC-Dust forecasts presented a better agreement with the observations, especially in southwestern part of the IP. With regard to the ... |
author2 |
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
format |
Article in Journal/Newspaper |
author |
Fernández García, Alfonso Javier Sicard, Michaël Costa, Maria João Guerrero Rascado, Juan Luis Gomez Amo, J.L. Molero, Francisco Barragán Cuesta, Rubén Basart, Sara Bortoli, D. Bedoya Velásquez, Andrés Esteban Granados Muñoz, María José Martínez Lozano, José Antonio Artiñano, Begoña Muñoz Porcar, Constantino Román Díez, Roberto Rocadenbosch Burillo, Francisco Benavent Oltra, José Antonio Rodríguez Gómez, Alejandro Antonio Alados Arboledas, Lucas Comerón Tejero, Adolfo Pujadas Cordero, Manuel |
author_facet |
Fernández García, Alfonso Javier Sicard, Michaël Costa, Maria João Guerrero Rascado, Juan Luis Gomez Amo, J.L. Molero, Francisco Barragán Cuesta, Rubén Basart, Sara Bortoli, D. Bedoya Velásquez, Andrés Esteban Granados Muñoz, María José Martínez Lozano, José Antonio Artiñano, Begoña Muñoz Porcar, Constantino Román Díez, Roberto Rocadenbosch Burillo, Francisco Benavent Oltra, José Antonio Rodríguez Gómez, Alejandro Antonio Alados Arboledas, Lucas Comerón Tejero, Adolfo Pujadas Cordero, Manuel |
author_sort |
Fernández García, Alfonso Javier |
title |
Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event |
title_short |
Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event |
title_full |
Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event |
title_fullStr |
Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event |
title_full_unstemmed |
Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event |
title_sort |
extreme, wintertime saharan dust intrusion in the iberian peninsula: lidar monitoring and evaluation of dust forecast models during the february 2017 event |
publishDate |
2019 |
url |
http://hdl.handle.net/2117/167399 https://doi.org/10.1016/j.atmosres.2019.06.007 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
https://www.sciencedirect.com/science/article/pii/S016980951930287X info:eu-repo/grantAgreement/EC/H2020/654109/EU/Aerosols, Clouds, and Trace gases Research InfraStructure/ACTRIS-2 info:eu-repo/grantAgreement/EC/H2020/778349/EU/Development of GRASP radiative transfer code for the retrieval of aerosol microphysics vertical-profiles from space measurements and its impact in ACE mission/GRASP-ACE info:eu-repo/grantAgreement/MINECO//TEC2015-63832-P/ES/TELEDETECCION LIDAR ATMOSFERICA Y OBSERVACIONES COOPERATIVAS: EXPLOTACION, PROCESADO DE LA SEÑAL Y BALANCE RADIATIVO./ Fernández, A. J. [et al.]. Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event. "Atmospheric research", 18 Juny 2019, vol. 228, p. 223-241. 0169-8095 http://hdl.handle.net/2117/167399 doi:10.1016/j.atmosres.2019.06.007 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access |
op_doi |
https://doi.org/10.1016/j.atmosres.2019.06.007 |
container_title |
Atmospheric Research |
container_volume |
228 |
container_start_page |
223 |
op_container_end_page |
241 |
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1810451373640122368 |
spelling |
ftupcatalunyair:oai:upcommons.upc.edu:2117/167399 2024-09-15T17:35:19+00:00 Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event Fernández García, Alfonso Javier Sicard, Michaël Costa, Maria João Guerrero Rascado, Juan Luis Gomez Amo, J.L. Molero, Francisco Barragán Cuesta, Rubén Basart, Sara Bortoli, D. Bedoya Velásquez, Andrés Esteban Granados Muñoz, María José Martínez Lozano, José Antonio Artiñano, Begoña Muñoz Porcar, Constantino Román Díez, Roberto Rocadenbosch Burillo, Francisco Benavent Oltra, José Antonio Rodríguez Gómez, Alejandro Antonio Alados Arboledas, Lucas Comerón Tejero, Adolfo Pujadas Cordero, Manuel Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció 2019-06-18 19 p. application/pdf http://hdl.handle.net/2117/167399 https://doi.org/10.1016/j.atmosres.2019.06.007 eng eng https://www.sciencedirect.com/science/article/pii/S016980951930287X info:eu-repo/grantAgreement/EC/H2020/654109/EU/Aerosols, Clouds, and Trace gases Research InfraStructure/ACTRIS-2 info:eu-repo/grantAgreement/EC/H2020/778349/EU/Development of GRASP radiative transfer code for the retrieval of aerosol microphysics vertical-profiles from space measurements and its impact in ACE mission/GRASP-ACE info:eu-repo/grantAgreement/MINECO//TEC2015-63832-P/ES/TELEDETECCION LIDAR ATMOSFERICA Y OBSERVACIONES COOPERATIVAS: EXPLOTACION, PROCESADO DE LA SEÑAL Y BALANCE RADIATIVO./ Fernández, A. J. [et al.]. Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: lidar monitoring and evaluation of dust forecast models during the February 2017 event. "Atmospheric research", 18 Juny 2019, vol. 228, p. 223-241. 0169-8095 http://hdl.handle.net/2117/167399 doi:10.1016/j.atmosres.2019.06.007 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció Remote sensing Extreme Saharan dust intrusion Particle optical properties Sun-photometer Multi-wavelength lidar Dust forecast model Model evaluation Vertical distribution Teledetecció Article 2019 ftupcatalunyair https://doi.org/10.1016/j.atmosres.2019.06.007 2024-07-25T11:01:49Z An unprecedented extreme Saharan dust event was registered in winter time from 20 to 23 February 2017 over the Iberian Peninsula (IP). We report on aerosol optical properties observed under this extreme dust intrusion through passive and active remote sensing techniques. For that, AERONET (AErosol RObotic NETwork) and EARLINET (European Aerosol Research LIdar NETwork) databases are used. The sites considered are: Barcelona (41.38°N, 2.17°E), Burjassot (39.51°N, 0.42°W), Cabo da Roca (38.78°N, 9.50°W), Évora (38.57°N, 7.91°W), Granada (37.16°N, 3.61°W) and Madrid (40.45°N, 3.72°W). Large aerosol optical depths (AOD) and low Ångström exponents (AE) are observed. An AOD of 2.0 at 675¿nm is reached in several stations. A maximum peak of 2.5 is registered in Évora. During and around the peak of AOD, AEs close to 0 and even slightly negative are measured. With regard to vertically-resolved aerosol optical properties, particle backscatter coefficients as high as 15¿Mm-1¿sr-1 at 355¿nm are recorded at the lidar stations. Layer-mean lidar ratios are found in the range 40–55¿sr at 355¿nm and 34–61¿sr at 532¿nm during the event. The particle depolarization ratios are found to be constant inside the dust layer, and consistent from one site to another. Layer-mean values vary in the range 0.19–0.31. Another remarkable aspect of the event is the limited vertical distribution of the dust plume which never exceeds 5¿km. The extreme aspect of the event also presented a nice case for testing the ability of two dust forecast models, BSC-DREAM8b and NMMB/BSC-Dust, to reproduce the arrival, the vertical distribution and the intensity of the dust plume over a long-range transport region. In the particular case of the February 2017 dust event, we found a large underestimation in the forecast of the extinction coefficient provided by BSC-DREAM8b at all heights independently of the site. In contrast NMMB/BSC-Dust forecasts presented a better agreement with the observations, especially in southwestern part of the IP. With regard to the ... Article in Journal/Newspaper Aerosol Robotic Network Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge Atmospheric Research 228 223 241 |