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Ambrym Volcano (Vanuatu, southwest Pacific) is one of the largest sources of continuous volcanic emissions worldwide. We performed a modeling study that confirms the strong influence of Ambrym emissions during an extreme degassing event of early 2005 on the composition of the atmosphere on the local and regional scales. It also stresses the importance of considering reactive halogen chemistry in the volcanic plume when assessing the impact of volcanic emissions on climate.
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Articles | Volume 16, issue 18
Atmos. Chem. Phys., 16, 12099–12125, 2016
https://doi.org/10.5194/acp-16-12099-2016
Atmos. Chem. Phys., 16, 12099–12125, 2016
https://doi.org/10.5194/acp-16-12099-2016

Research article 28 Sep 2016

Research article | 28 Sep 2016

Modeling the reactive halogen plume from Ambrym and its impact on the troposphere with the CCATT-BRAMS mesoscale model

Line Jourdain et al.

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Cited articles

Aiuppa, A., Federico, C., Franco, A., Giudice, G., Gurrieri, S., Inguaggiato, S., Liuzzo, M., McGonigle, A. J. S., and Valenza, M.: Emission of bromine and iodine from Mount Etna volcano, Geochem. Geophy. Geosys., 6, Q08008, https://doi.org/10.1029/2005GC000965, 2005.
Allan, W., Struthers, H., and Lowe, D. C.: Methane carbon isotope effects caused by atomic chlorine in the marine boundary layer: Global model results compared with Southern Hemisphere measurements, J. Geophys. Res., 112, D04306, https://doi.org/10.1029/2006JD007369, 2007.
Allard, P., Aiuppa, A., Bani, P., Metrich, N., Bertagnini, A., Gauthier, P. J., Parelli, F., Sawyer, G. M., Shinohara, H., Bagnator, E., Mariet, C., Garebiti, E., and Pelletier, B.: Ambrym basaltic volcano (Vanuatu Arc): volatile fluxes, magma degassing rate and chamber depth, in: AGU Fall Meeting Abstracts, Vol. 1, San Francisco, United States of America, December 2009.
Allard, P., Aiuppa, A., Bani, P., Métrich, N., Bertagnini, A., Gauthier, P. J., Shinohara, H., Sawyer, G., Parello, F., Bagnato, E., and Pelletier, B.: Prodigious emission rates and magma degassing budget of major, trace and radioactive volatile species from Ambrym basaltic volcano, Vanuatu island Arc, J. Volcanol. Geoth. Res., https://doi.org/10.1016/j.jvolgeores.2015.10.004, online first, 2015.
Allibone, R., Cronin, S. J., Douglas, C. T., Oppenheimer, C., Neall, V. E., and Stewart, R. B.: Dental fluorosis linked to degassing on Ambrym volcano, Vanuatu: a novel exposure, pathway, Environ. Geochem. Hlth., 34, 155–170, https://doi.org/10.1007/s10653-010-9338-2, 2010.
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Short summary
Ambrym Volcano (Vanuatu, southwest Pacific) is one of the largest sources of continuous volcanic emissions worldwide. We performed a modeling study that confirms the strong influence of Ambrym emissions during an extreme degassing event of early 2005 on the composition of the atmosphere on the local and regional scales. It also stresses the importance of considering reactive halogen chemistry in the volcanic plume when assessing the impact of volcanic emissions on climate.
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