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New insights into the relationship between mass eruption rate and volcanic column height based on the IVESPA dataset
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  • Thomas Jacques Aubry,
  • Samantha L Engwell,
  • Costanza Bonadonna,
  • Larry Garver Mastin,
  • Guillaume Carazzo,
  • Alexa Van Eaton,
  • David Jessop,
  • Roy Gordon Grainger,
  • Simona Scollo,
  • Isabelle Alice Taylor,
  • Mark Jellinek,
  • Anja Schmidt,
  • Sébastien Biass,
  • Mathieu Gouhier
Thomas Jacques Aubry
University of Exeter

Corresponding Author:thom.aubry@gmail.com

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Samantha L Engwell
British Geological Survey
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Costanza Bonadonna
University of Geneva
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Larry Garver Mastin
United States Geological Survey
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Guillaume Carazzo
Institut De Physique Du Globe De Paris
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Alexa Van Eaton
United States Geological Survey, Cascades Volcano Observatory
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David Jessop
Observatoire de Physique du Globe de Clermont-Ferrand, Université Clermont Auvergne
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Roy Gordon Grainger
University of Oxford
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Simona Scollo
Istituto Nazionale di Geofisica e Vulcanologia - Osservatorio Etneo, Catania, Italy
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Isabelle Alice Taylor
University of Oxford
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Mark Jellinek
University of British Columbia
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Anja Schmidt
Institute of Atmospheric Physics (IPA), German Aerospace Center (DLR)
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Sébastien Biass
University of Geneva
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Mathieu Gouhier
Laboratoire Magmas et Volcans (Université Clermont Auvergne-CNRS-IRD)
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Relating the mass eruption rate (MER) of explosive eruptions to column height in the atmosphere is key to reconstructing past eruptions and forecasting volcanic hazards. Using 134 eruptive events from the Independent Volcanic Eruption Source Parameter Archive (IVESPA v1.0), we explore the canonical MER-height relationship for four measures of column height: spreading level, sulfur dioxide height, and top height from both directly observed plumes and those reconstructed from deposits. These relationships show significant differences and should be chosen carefully for operational and research applications. The roles of atmospheric stratification, wind, and humidity remain challenging to assess across the large range of eruptive conditions in this database, ultimately resulting in empirical relationships outperforming analytical models that account for atmospheric conditions. This finding reveals the complexity of the height-MER relation that is difficult to constrain based on available heterogeneous observations, which reinforces the need for improved datasets to develop eruptive column models.
23 Dec 2022Submitted to ESS Open Archive
27 Dec 2022Published in ESS Open Archive