Articles | Volume 23, issue 18
https://doi.org/10.5194/acp-23-10533-2023
https://doi.org/10.5194/acp-23-10533-2023
Research article
 | 
25 Sep 2023
Research article |  | 25 Sep 2023

A regional modelling study of halogen chemistry within a volcanic plume of Mt Etna's Christmas 2018 eruption

Herizo Narivelo, Paul David Hamer, Virginie Marécal, Luke Surl, Tjarda Roberts, Sophie Pelletier, Béatrice Josse, Jonathan Guth, Mickaël Bacles, Simon Warnach, Thomas Wagner, Stefano Corradini, Giuseppe Salerno, and Lorenzo Guerrieri

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Halogen chemistry in volcanic plumes: a 1D framework based on MOCAGE 1D (version R1.18.1) preparing 3D global chemistry modelling
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Subject: Gases | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Aiuppa, A., Federico, C., Franco, A., Giudice, S., Gurrieri, S., Inguaggiato, S., Liuzzo, M., McGonigle, A. J. S., and M, V.: Emission of bromine and iodine from Mount Etna volcano, Geochem. Geophy. Geosy., 6, Q08008, https://doi.org/10.1029/2005GC000965, 2005. a
Aiuppa, A., Giudice, G., Gurrieri, S., Liuzzo, M., Caltabiano, T., McGonigle, A. J. S., Salerno, G., Shinohara, H., and Valenza, M.: Total volatile flux from Mount Etna, Geophys. Res. Lett., 35, L24302, https://doi.org/10.1029/2008GL035871, 2008. a, b
Allard, P., Carbonnelle, J., Dajlevic, D., Bronec, J., Morel, P., Robe, M., Maurenas, J., Faivre-Pierret, R., Martin, D., Sabroux, J.-C., and Zettwoog, P.: Eruptive and diffuse emissions of CO2 from Mount Etna, Nature, 351, 387–391, https://doi.org/10.1038/351387a0, 1991. a
Barré, J., Peuch, V.-H., Lahoz, W., Attié, J.-L., Josse, B., Piacentini, A., Eremenko, M., Dufour, G., Nedelec, P., von Clarmann, T., and Amraoui, L. E.: Combined data assimilation of ozone tropospheric columns and stratospheric profiles in a high-resolution CTM, Q. J. Roy. Meteor. Soc., 140, 966–981, https://doi.org/10.1002/qj.2176, 2014. a
Bluth, G., Schnetzler, C., Krueger, A., and Walter, L.: The contribution of explosive volcanism to global atmospheric sulphur dioxide concentrations, Nature, 366, 327–329, 1993. a
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Volcanic emissions emit large quantities of gases and primary aerosols that can play an important role in atmospheric chemistry. We present a study of the fate of volcanic bromine emissions from the eruption of Mount Etna around Christmas 2018. Using a numerical model and satellite observations, we analyse the impact of the volcanic plume and how it modifies the composition of the air over the whole Mediterranean basin, in particular on tropospheric ozone through the bromine-explosion cycle.
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