Complex refractive index of volcanic ash aerosol in the infrared, visible, and ultraviolet

• Published in: Applied Optics
• Main Authors: Deguine, Alexandre, Petitprez, Denis, Clarisse, Lieven, Guđmundsson, Snævarr, Outes, Valeria, Villarosa, Gustavo, Herbin, Hervé
• Other Authors: Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Université libre de Bruxelles (ULB), Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), ANR-11-LABX-0005,Cappa,Physiques et Chimie de l'Environnement Atmosphérique(2011)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2020
• Subjects: [SDE]Environmental Sciences; Etna; Eyjafjallajökull; Iceland; Cris
• Online Access: https://hal.science/hal-04247296; https://doi.org/10.1364/AO.59.000884

Very fine silicate-rich volcanic ash, generated by explosive volcanic eruptions, can efficiently be traced downwind with infrared satellite sounders. Their measurements can also be used to derive physical parameters, such as optical depths and effective radii. However, one of the key requirements fo...