A novel methodology to determine volcanic aerosols optical properties in the UV and NIR and Ångström parameters using Sun photometry

A novel methodology to determine volcanic aerosols optical properties in the UV and NIR and Ångström parameters using Sun photometry

Remote volcanic aerosol optical depth (AOD) observations of Mount Etna summit and distal bulk plume have been carried out between 14 and 20 July 2016 in the framework of the EPL‐RADIO project. Ultraviolet (UV) and near‐infrared (NIR) AODs were measured using a Microtops‐II Ozone Monitor (MIIOM) Sun...

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Veröffentlicht in:Journal of geophysical research. Atmospheres 2017-09, Vol.122 (18), p.9803-9815
Hauptverfasser: Sellitto, P., Salerno, G., La Spina, A., Caltabiano, T., Terray, L., Gauthier, P.‐J., Briole, P.
Format: Artikel
Sprache:eng
Schlagworte:
ash
Atmospheric and Oceanic Physics
Microtops
Physics
sulphate aerosols
Sun photometry
volcanic aerosols
volcanic emissions
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Zusammenfassung:Remote volcanic aerosol optical depth (AOD) observations of Mount Etna summit and distal bulk plume have been carried out between 14 and 20 July 2016 in the framework of the EPL‐RADIO project. Ultraviolet (UV) and near‐infrared (NIR) AODs were measured using a Microtops‐II Ozone Monitor (MIIOM) Sun photometer, using a Langley plot (LP) instrumental calibration routine. Ozone‐corrected UV AODs at 320 nm are derived for the first time with a Microtops, thus extending the exploitable spectral band range of portable photometers to shorter wavelengths. The new UV AODs have theoretical uncertainties
ISSN:2169-897X
2169-8996
DOI:10.1002/2017JD026723