Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations

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...

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Main Authors: Antonella Boselli, Alessia Sannino, Mariagrazia D’Emilio, Xuan Wang, Salvatore Amoruso
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/13/10/2001
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author Antonella Boselli
Alessia Sannino
Mariagrazia D’Emilio
Xuan Wang
Salvatore Amoruso
author_facet Antonella Boselli
Alessia Sannino
Mariagrazia D’Emilio
Xuan Wang
Salvatore Amoruso
author_sort Antonella Boselli
collection DOAJ
description 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 > 0.25) and Ångstrom exponent (γ > 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.
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spelling doaj.art-f08dcb8368e14388a3477598786315a22023-11-21T20:33:05ZengMDPI AGRemote Sensing2072-42922021-05-011310200110.3390/rs13102001Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ ObservationsAntonella Boselli0Alessia Sannino1Mariagrazia D’Emilio2Xuan Wang3Salvatore Amoruso4Istituto di Metodologie per l’Analisi Ambientale (IMAA)—CNR, 85050 Tito Scalo, ItalyDipartimento di Fisica “E. Pancini”, Università degli Studi di Napoli Federico II, 80138 Napoli, ItalyIstituto di Metodologie per l’Analisi Ambientale (IMAA)—CNR, 85050 Tito Scalo, ItalyIstituto Superconduttori, Materiali innovativi e Dispositivi (SPIN)—CNR, 80126 Napoli, ItalyDipartimento di Fisica “E. Pancini”, Università degli Studi di Napoli Federico II, 80138 Napoli, ItalyDuring 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 > 0.25) and Ångstrom exponent (γ > 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.https://www.mdpi.com/2072-4292/13/10/2001biomass burningparticulate matteraerosollidaroptical properties
spellingShingle Antonella Boselli
Alessia Sannino
Mariagrazia D’Emilio
Xuan Wang
Salvatore Amoruso
Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations
Remote Sensing
biomass burning
particulate matter
aerosol
lidar
optical properties
title Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations
title_full Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations
title_fullStr Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations
title_full_unstemmed Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations
title_short Aerosol Characterization during the Summer 2017 Huge Fire Event on Mount Vesuvius (Italy) by Remote Sensing and In Situ Observations
title_sort aerosol characterization during the summer 2017 huge fire event on mount vesuvius italy by remote sensing and in situ observations
topic biomass burning
particulate matter
aerosol
lidar
optical properties
url https://www.mdpi.com/2072-4292/13/10/2001
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