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http://hdl.handle.net/2122/11178
Authors: | Sellitto, Pasquale* Spampinato, Letizia* Salerno, Giuseppe Giovanni* La Spina, Alessandro* |
Title: | Aerosol Optical Properties of Pacaya Volcano Plume Measured with a Portable Sun-Photometer | Journal: | Geosciences | Series/Report no.: | /8 (2018) | Issue Date: | 2018 | DOI: | 10.3390/geosciences8020036 | Subject Classification: | 04.08. Volcanology | Abstract: | In this paper, Sun-photometer multichannel measurements of aerosol optical depths (AODs) in the visible and near-infrared spectral ranges, and Ångström parameters of the plume issued from the Pacaya volcano, Guatemala, are presented for the first time. These observations, made during a short-term campaign carried out on 29 and 30 January 2011, indicate a diluted (AODs lower than 0.1) volcanic plume composed of small particles (Ångström exponent 1.0 on 29 January and 1.4 on 30 January). Results are consistent with an ash-free plume. Finally, the impact of the choice of different wavelength pairs for the calculation of the Ångström parameters from the spectral AOD observations is tested and critically discussed. |
Appears in Collections: | Article published / in press |
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Sellitto et al., 2018.pdf | 6.29 MB | Adobe PDF | View/Open |
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