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Abstract
We document for the first time observations of point discharge currents under dust devils using a novel compact sensor deployed in summer 2016 at the USDA-ARS Jornada Experimental Range in New Mexico, USA. A consistent signature is noted in about a dozen events seen over 40 days, with a positive current ramping up towards closest approach, switching to a decaying negative current as the devil recedes. The currents, induced on a small wire about 10 cm above the ground, correlate with dust devil intensity (pressure drop) and dust loading, and reached several hundred picoAmps.
Original language | English |
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Pages (from-to) | 55-60 |
Number of pages | 6 |
Journal | Journal of Atmospheric and Solar-Terrestrial Physics |
Volume | 150-151 |
Early online date | 29 Oct 2016 |
DOIs | |
Publication status | Published - 27 Dec 2016 |
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Dive into the research topics of 'Point discharge current measurements beneath dust devils'. Together they form a unique fingerprint.Projects
- 1 Finished
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Understanding Energetic Particle Effects on Atmospheric Processes
Nicoll, K. (PI)
Natural Environment Research Council
1/03/16 → 30/09/20
Project: Research council