{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T11:47:49Z","timestamp":1768823269407,"version":"3.49.0"},"reference-count":46,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2021,5,20]],"date-time":"2021-05-20T00:00:00Z","timestamp":1621468800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>During the summer of 2017, multiple huge fires occurred on Mount Vesuvius (Italy), dispersing a large quantity of ash in the surrounding area ensuing the burning of tens of hectares of Mediterranean scrub. The fires affected a very large area of the Vesuvius National Park and the smoke was driven by winds towards the city of Naples, causing daily peak values of particulate matter (PM) concentrations at ground level higher than the limit of the EU air quality directive. The smoke plume spreading over the area of Naples in this period was characterized by active (lidar) and passive (sun photometer) remote sensing as well as near-surface (optical particle counter) observational techniques. The measurements allowed us to follow both the PM variation at ground level and the vertical profile of fresh biomass burning aerosol as well as to analyze the optical and microphysical properties. The results evidenced the presence of a layer of fine mode aerosol with large mean values of optical depth (AOD &gt; 0.25) and \u00c5ngstrom exponent (\u03b3 &gt; 1.5) above the observational site. Moreover, the lidar ratio and aerosol linear depolarization obtained from the lidar observations were about 40 sr and 4%, respectively, consistent with the presence of biomass burning aerosol in the atmosphere.<\/jats:p>","DOI":"10.3390\/rs13102001","type":"journal-article","created":{"date-parts":[[2021,5,20]],"date-time":"2021-05-20T06:13:45Z","timestamp":1621491225000},"page":"2001","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations"],"prefix":"10.3390","volume":"13","author":[{"given":"Antonella","family":"Boselli","sequence":"first","affiliation":[{"name":"Istituto di Metodologie per l\u2019Analisi Ambientale (IMAA)\u2014CNR, 85050 Tito Scalo, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8836-9563","authenticated-orcid":false,"given":"Alessia","family":"Sannino","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica \u201cE. Pancini\u201d, Universit\u00e0 degli Studi di Napoli Federico II, 80138 Napoli, Italy"}]},{"given":"Mariagrazia","family":"D\u2019Emilio","sequence":"additional","affiliation":[{"name":"Istituto di Metodologie per l\u2019Analisi Ambientale (IMAA)\u2014CNR, 85050 Tito Scalo, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0830-0898","authenticated-orcid":false,"given":"Xuan","family":"Wang","sequence":"additional","affiliation":[{"name":"Istituto Superconduttori, Materiali innovativi e Dispositivi (SPIN)\u2014CNR, 80126 Napoli, Italy"},{"name":"School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430072, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1011-3215","authenticated-orcid":false,"given":"Salvatore","family":"Amoruso","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica \u201cE. Pancini\u201d, Universit\u00e0 degli Studi di Napoli Federico II, 80138 Napoli, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"6461","DOI":"10.1175\/JCLI-D-11-00650.1","article-title":"Toward a minimal representation of aerosols in climate models: Comparative decomposition of aerosol direct, semidirect, and indirect radiative forcing","volume":"25","author":"Ghan","year":"2012","journal-title":"J. Clim."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"8980","DOI":"10.1002\/2014JD021861","article-title":"Effects of biomass burning on climate, accounting for heat and moisture fluxes, black and brown carbon, and cloud absorption effects","volume":"119","author":"Jacobson","year":"2014","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"504","DOI":"10.1016\/j.envint.2019.02.073","article-title":"Biomass burning aerosol characteristics for different vegetation types in different aging periods","volume":"126","author":"Shi","year":"2019","journal-title":"Environ. Int."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.jcp.2015.06.045","article-title":"Using Raman-lidar-based regularized microphysical retrievals and Aerosol Mass Spectrometer measurements for the characterization of biomass burning aerosols","volume":"299","author":"Samaras","year":"2015","journal-title":"J. Comput. Phys."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"708","DOI":"10.4209\/aaqr.2013.05.0163","article-title":"Impact of Biomass Burning on Aerosol Size Distribution, Aerosol Optical Properties and Associated Radiative Forcing","volume":"14","author":"Calvo","year":"2014","journal-title":"Aerosol Air Qual. Res."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1577","DOI":"10.1183\/13993003.01865-2014","article-title":"Health impacts of anthropogenic biomass burning in the developed world","volume":"46","author":"Sigsgaard","year":"2015","journal-title":"Eur. Respir. J."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1647","DOI":"10.5194\/acp-15-1647-2015","article-title":"Characterization of forest fire smoke event near Washington, DC in summer 2013 with multi-wavelength lidar","volume":"15","author":"Veselovskii","year":"2015","journal-title":"Atmos. Chem. Phys."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"11375","DOI":"10.5194\/acp-18-11375-2018","article-title":"Transport of Canadian forest fire smoke over the UK as observed by lidar","volume":"18","author":"Vaughan","year":"2018","journal-title":"Atmos. Chem. Phys."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"L11802","DOI":"10.1029\/2009GL037923","article-title":"Dust and smoke transport from Africa to South America: Lidar profiling over Cape Verde and the Amazon rainforest","volume":"36","author":"Ansmann","year":"2009","journal-title":"Geophys. Res. Lett."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"15183","DOI":"10.5194\/acp-19-15183-2019","article-title":"The unprecedented 2017\u20132018 stratospheric smoke event: Decay phase and aerosol properties observed with the EARLINET","volume":"19","author":"Baars","year":"2019","journal-title":"Atmos. Chem. Phys."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"5931","DOI":"10.5194\/acp-17-5931-2017","article-title":"Microphysical characterization of long-range transported biomass burning particles from North America at three EARLINET stations","volume":"17","author":"Samaras","year":"2017","journal-title":"Atmos. Chem. Phys."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"77","DOI":"10.1002\/asl2.524","article-title":"Towards an aerosol classification scheme for future EarthCARE lidar observations and implications for research needs","volume":"16","author":"Freudenthaler","year":"2015","journal-title":"Atmos. Sci. Lett."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"D00C17","DOI":"10.1029\/2008JD010077","article-title":"Overview of the Dust and Biomass-burning Experiment and African Monsoon Multidisciplinary Analysis Special Observing Period-0","volume":"113","author":"Haywood","year":"2008","journal-title":"J. Geophys. Res."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"D22209","DOI":"10.1029\/2011JD016170","article-title":"Assessing boreal forest fire smoke aerosol impacts on U.S. air quality: A case study using multiple data sets","volume":"116","author":"Miller","year":"2011","journal-title":"J. Geophys. Res."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Zielinski, T., Bolzacchini, E., Cataldi, M., Ferrero, L., Gra\u00dfl, S., Hansen, G., Mateos, D., Mazzola, M., Neuber, R., and Pakszys, P. (2020). Study of Chemical and Optical Properties of Biomass Burning Aerosols during Long-Range Transport Events toward the Arctic in Summer 2017. Atmosphere, 11.","DOI":"10.3390\/atmos11010084"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"14657","DOI":"10.5194\/acp-16-14657-2016","article-title":"Evaluation of biomass burning aerosols in the HadGEM3 climate model with observations from the SAMBBA field campaign","volume":"16","author":"Johnson","year":"2016","journal-title":"Atmos. Chem. Phys."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2956","DOI":"10.1002\/jgrd.50324","article-title":"Characterization of fresh and aged biomass burning events using multi-wavelength Raman lidar and mass spectrometry","volume":"118","author":"Nicolae","year":"2013","journal-title":"J. Geophys. Res."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Janicka, L., and Stachlewska, I.S. (2019). Properties of biomass burning aerosol mixtures derived at fine temporal and spatial scales from Raman lidar measurements: Part I optical properties. Atmos. Chem. Phys. Discuss.","DOI":"10.5194\/acp-2019-207"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"2527","DOI":"10.1016\/j.scitotenv.2010.03.010","article-title":"Chemical composition of fine particles in fresh smoke plumes from boreal wild-land fires in Europe","volume":"408","author":"Saarnio","year":"2010","journal-title":"Sci. Total Environ."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Saulino, L., Rita, A., Migliozzi, A., Maffei, C., Allevato, E., Garonna, A.P., and Saracino, A. (2020). Detecting Burn Severity across Mediterranean Forest Types by Coupling Medium-Spatial Resolution Satellite Imagery and Field Data. Remote Sens., 12.","DOI":"10.3390\/rs12040741"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"D21202","DOI":"10.1029\/2005JD005986","article-title":"Forest fire aerosol over the Mediterranean basin during summer 2003","volume":"110","author":"Pace","year":"2005","journal-title":"J. Geophys. Res."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"117042","DOI":"10.1016\/j.atmosenv.2019.117042","article-title":"Impact of mixing state on aerosol optical properties during severe wildfires over the Euro-Mediterranean region","volume":"220","author":"Majdi","year":"2020","journal-title":"Atmos. Environ."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"536","DOI":"10.1016\/j.atmosenv.2011.07.056","article-title":"Impact of the 2009 Attica wild fires on the air quality in urban Athens","volume":"46","author":"Amiridis","year":"2012","journal-title":"Atmos. Environ."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"09004","DOI":"10.1051\/epjconf\/201817609004","article-title":"ACTRIS Aerosol, Clouds and Trace Gases Research Infrastructure","volume":"176","author":"Pappalardo","year":"2018","journal-title":"EPJ Web Conf."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"2389","DOI":"10.5194\/amt-7-2389-2014","article-title":"EARLINET: Towards an advanced sustainable European aerosol lidar network","volume":"7","author":"Pappalardo","year":"2014","journal-title":"Atmos. Meas. Tech."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1111\/j.1600-0889.2008.00396.x","article-title":"Depolarization ratio profiling at several wavelengths in pure Saharan dust during SAMUM 2006","volume":"61","author":"Freudenthaler","year":"2009","journal-title":"Tellus B"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1364\/AO.20.000211","article-title":"Stable analytical inversion solution for processing lidar returns","volume":"20","author":"Klett","year":"1981","journal-title":"Appl. Opt."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"652","DOI":"10.1364\/AO.23.000652","article-title":"Analysis of the atmospheric lidar observations; some comments","volume":"23","author":"Fernald","year":"1984","journal-title":"Appl. Opt."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1007\/BF00348608","article-title":"Combined raman elastic-backscatter LIDAR for vertical profiling of moisture, aerosol extinction, backscatter, and LIDAR ratio","volume":"55","author":"Ansmann","year":"1992","journal-title":"Appl. Phys. B."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"817","DOI":"10.1016\/S0022-4073(01)00048-6","article-title":"Constraints on PSC particle microphysics derived from lidar observations","volume":"70","author":"Liua","year":"2001","journal-title":"J. Quant. Spectrosc. Radiat. Transf."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"746","DOI":"10.1364\/OL.15.000746","article-title":"Measurement of atmospheric aerosol extinction profiles with a Raman lidar","volume":"15","author":"Ansmann","year":"1990","journal-title":"Opt. Lett."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"427","DOI":"10.1364\/OE.7.000427","article-title":"Polarization lidar: Corrections of instrumental effects","volume":"7","author":"Biele","year":"2000","journal-title":"Opt. Express"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"2211","DOI":"10.5194\/acp-21-2211-2021","article-title":"Aerosol type classification analysis using EARLINET multiwavelength and depolarization lidar observations","volume":"21","author":"Mylonaki","year":"2021","journal-title":"Atmos. Chem. Phys."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"2487","DOI":"10.5194\/acp-13-2487-2013","article-title":"Aerosol classification by airborne high spectral resolution lidar observations","volume":"13","author":"Esselborn","year":"2013","journal-title":"Atmos. Chem. Phys."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0034-4257(98)00031-5","article-title":"AERONET\u2014A federated instrument network and data archive for aerosol characterization","volume":"66","author":"Holben","year":"1998","journal-title":"Remote Sens. Environ."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"12067","DOI":"10.1029\/2001JD900014","article-title":"An emerging ground-based aerosol climatology: Aerosol optical depth from AERONET","volume":"106","author":"Holben","year":"2001","journal-title":"J. Geophys. Res."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"20673","DOI":"10.1029\/2000JD900282","article-title":"A flexible inversion algorithm for the retrievalof aerosol optical properties from sun and sky radiance measurements","volume":"105","author":"Dubovik","year":"2000","journal-title":"J. Geophys. Res."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"169","DOI":"10.5194\/amt-12-169-2019","article-title":"Advancements in the Aerosol Robotic Network (AERONET) Version 3 database-automated near-real-time quality control algorithm with improved cloud screening for Sun photometer aerosol optical depth (AOD) measurements","volume":"12","author":"Giles","year":"2019","journal-title":"Atmos. Meas. Tech."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"27473","DOI":"10.1029\/1999JD900833","article-title":"Use of the \u00c5ngstr\u00f6m exponent to estimate the variability of optical and physical properties of aging smoke particles in Brazil","volume":"104","author":"Reid","year":"1999","journal-title":"J. Geophys. Res."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"034016","DOI":"10.1088\/1748-9326\/7\/3\/034016","article-title":"Intense dust and extremely fresh biomass burning outbreak in Barcelona, Spain: Characterization of their optical properties and estimation of their direct radiative forcing","volume":"7","author":"Sicard","year":"2012","journal-title":"Environ. Res. Lett."},{"key":"ref_41","first-page":"4559","article-title":"Spectral discrimination of coarse and fine mode optical depth","volume":"108","author":"Eck","year":"2003","journal-title":"J. Geophys. Res."},{"key":"ref_42","first-page":"118","article-title":"A method for the integration of satellite vegetation activities observations and magnetic susceptibility measurements for monitoring heavy metals in soil et al","volume":"241\u2013242","author":"Macchiato","year":"2012","journal-title":"J. Hazard. Mater."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"14028","DOI":"10.1002\/2014JD022044","article-title":"Aerosol transport over the western Mediterranean basin: Evidence of the contribution of fine particles to desert dust plumes over Albor\u00e1n Island","volume":"119","author":"Valenzuela","year":"2014","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1016\/j.atmosenv.2018.04.024","article-title":"An analysis of high fine aerosol loading episodes in north-central Spain in the summer 2013\u2014Impact of Canadian biomass burning episode and local emissions","volume":"184","author":"Burgos","year":"2018","journal-title":"Atmos. Environ."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"32013","DOI":"10.1029\/98JD00159","article-title":"Physical and optical properties of young smoke from individual biomass fires in Brazil","volume":"103","author":"Reid","year":"1998","journal-title":"J. Geophys. Res."},{"key":"ref_46","first-page":"L01807","article-title":"Optical and microphysical properties of fresh biomass burning aerosol retrieved by Raman lidar, and star-and sun-photometry","volume":"38","author":"Muller","year":"2011","journal-title":"Geophys. Res. Lett."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/13\/10\/2001\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:04:33Z","timestamp":1760162673000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/13\/10\/2001"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,5,20]]},"references-count":46,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2021,5]]}},"alternative-id":["rs13102001"],"URL":"https:\/\/doi.org\/10.3390\/rs13102001","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,5,20]]}}}