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    Space- and ground-based measurements of sulphur dioxide emissions from Turrialba Volcano (Costa Rica)

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    Campion(2012).pdf (1.159Mb)
    Authors
    Campion, R.
    Martinez-Cruz, M.
    Lecocq, T.
    Caudron, C.
    Pacheco, J.
    Pinardi, G.
    Hermans, C.
    Carn, S.
    Bernard, A.
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    Discipline
    Earth and related Environmental sciences
    Audience
    Scientific
    Date
    2012
    Metadata
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    Description
    Remotely sensed measurements of sulphur dioxide (SO2) emitted by Turrialba Volcano (Costa Rica) are reported for the period September 2009–January 2011. These measurements were obtained using images from Advanced Spaceborne Thermal Emission and Reflexion radiometer, Ozone Monitoring Instrument and a ground-based UV camera. These three very different instruments provide flux measurements in good agreement with each other, which demonstrate that they can be integrated for monitoring SO2 fluxes. Fluxes from Turrialba increased fourfold in January 2010, following a phreatic explosion that formed a degassing vent in the W crater of Turrialba. Since then, the SO2 flux has remained high (30–50 kg/s) but seems to be showing a slowly decreasing trend. We interpret this evolution as the start of open vent degassing from a recently intruded magma body. The opening of the degassing vent decreased the confining pressure of the magma body and allowed the gases to bypass the hydrothermal system.
    Citation
    Campion, R.; Martinez-Cruz, M.; Lecocq, T.; Caudron, C.; Pacheco, J.; Pinardi, G.; Hermans, C.; Carn, S.; Bernard, A. (2012). Space- and ground-based measurements of sulphur dioxide emissions from Turrialba Volcano (Costa Rica). , Bulletin of Volcanology, Vol. 74, Issue 7, 1757-1770, DOI: 10.1007/s00445-012-0631-z.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/3028
    doi: http://dx.doi.org/10.1007/s00445-012-0631-z
    scopus: 2-s2.0-84865630550
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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