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

Full text not available from this repository.


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:
ID Code:
Deposited By:
Deposited On:
15 Sep 2008 09:02
Last Modified:
21 Sep 2023 23:57