A thermodynamical model for rainfall-triggered volcanic dome collapse

Matthews, AJ and Barclay, J (2004) A thermodynamical model for rainfall-triggered volcanic dome collapse. Geophysical Research Letters, 31 (5). ISSN 0094-8276

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Abstract

Dome-forming volcanic eruptions typically involve the slow extrusion of viscous lava onto a steep-sided volcano punctuated by collapse and the generation of hazardous pyroclastic flows. We show an unequivocal link between the onset of intense rainfall and lava dome collapse on short time scales (within a few hours) and develop a simple thermodynamical model to explain this behavior. The model is forced with rainfall observations from the Soufriere Hills Volcano, Montserrat, and suggests that when the dome is in a critical state, a minimum rainfall rate of approximately 15 mm hr-1 for 2-3 hr could trigger a dome collapse.

Item Type: Article
Faculty \ School: Faculty of Science > School of Mathematics
Faculty of Science > School of Environmental Sciences
Related URLs:
Depositing User: Vishal Gautam
Date Deposited: 12 Mar 2004
Last Modified: 12 Nov 2019 01:16
URI: https://ueaeprints.uea.ac.uk/id/eprint/17635
DOI: 10.1029/2003GL019310

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