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Optical and microphysical characterization of atmospheric aerosol in the Central Mediterranean during simultaneous volcanic ash and desert dust transport events

Abstract : Volcanic plume aerosol following the paroxysmal event of Mount Etna (Italy) in February 21st - 26th, 2021 was detected in Naples area (Italy), together with transport of Saharan dust aerosol, combining lidar, sunphotometer and satellite observations with back-trajectories and dispersion models simulations. Lidar data allowed to clearly distinguish the two main aerosol components, to investigate the spectral dependence of the aerosol optical properties and to retrieve their microphysical properties, essential for a detailed aerosol characterization. A new Monte Carlo algorithm, capable of retrieving the particle size distribution from lidar measurements, was applied. Lidar results are in good agreement with columnar integrated sunphotometer data. This combination of novel lidar observations of the vertically-resolved aerosol microphysics, column observations and modelling allows for a more complete description of multi-layered aerosol conditions.
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Submitted on : Tuesday, May 17, 2022 - 11:59:22 AM
Last modification on : Thursday, May 19, 2022 - 3:12:50 AM

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Alessia Sannino, Salvatore Amoruso, Riccardo Damiano, Simona Scollo, Pasquale Sellitto, et al.. Optical and microphysical characterization of atmospheric aerosol in the Central Mediterranean during simultaneous volcanic ash and desert dust transport events. Atmospheric Research, Elsevier, 2022, 271, pp.106099. ⟨10.1016/j.atmosres.2022.106099⟩. ⟨hal-03670252⟩

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