Volcanic plume monitoring using atmospheric electric potential gradients.

James, Mike R. and Lane, Stephen and Gilbert, Jennifer (1998) Volcanic plume monitoring using atmospheric electric potential gradients. Journal of the Geological Society, 155 (4). pp. 587-590. ISSN 0016-7649

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Abstract

By monitoring perturbations of the natural atmospheric electric potential gradient, it is possible to detect and track particle laden volcanic plumes. The perturbations are produced by electrical charge that resides on the solid particles and liquid droplets of the plume, and the ions within it. A network of potential gradient monitoring stations around a volcano can provide data on eruption time, magnitude, plume dispersion direction and areas of ashfall. Our laboratory experiments have produced electrically charged ash by fragmenting pumice. These results support the theory that charging is due to the magma fragmentation process and should therefore be ubiquitous in all particulate volcanic plumes.

Item Type: Journal Article
Journal or Publication Title: Journal of the Geological Society
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qe
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 13242
Deposited By: Dr Steve Lane
Deposited On: 15 Sep 2008 09:02
Refereed?: Yes
Published?: Published
Last Modified: 14 Aug 2019 04:02
URI: https://eprints.lancs.ac.uk/id/eprint/13242

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