Saharan dust electrification perceived by a triangle of atmospheric electricity stations in Southern Portugal

HG Silva, F Lopes, S Pereira, Kerianne Nicoll, S M Barbosa, R Conceicao, S Neves, S Neves, Giles Harrison, M Collares Pereira

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Abstract

Atmospheric Electric Potential Gradient (PG) measurements were carried out in three sites forming a triangular array in Southern Portugal. The campaign was performed during the summer, characterized by Saharan dust outbreaks; 16th-17th July 2014 dust event is considered. Short time-scale oscillations of the PG at two of the stations and a mid time-scale suppression of the PG in the three stations are found. Results are interpreted as evidencing long-range dust
electrification; attributed to the air-Earth electrical current creating a bipolar charge distribution inside of the dust layer. The relevance of using arrays of sensors, instead of single sited, is highlighted.
Original languageEnglish
Pages (from-to)106-120
JournalJournal of Electrostatics
Volume84
Early online date28 Oct 2016
DOIs
Publication statusPublished - Dec 2016

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Atmospheric electricity
atmospheric electricity
electrification
Portugal
Electricity
Dust
triangles
potential gradients
stations
dust
Charge distribution
charge distribution
summer
Disease Outbreaks
Earth (planet)
Air
retarding
oscillations
sensors
air

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Saharan dust electrification perceived by a triangle of atmospheric electricity stations in Southern Portugal. / Silva, HG; Lopes, F; Pereira, S; Nicoll, Kerianne; Barbosa, S M; Conceicao, R; Neves, S; Neves, S; Harrison, Giles; Collares Pereira, M.

In: Journal of Electrostatics, Vol. 84, 12.2016, p. 106-120.

Research output: Contribution to journalArticle

Silva, HG, Lopes, F, Pereira, S, Nicoll, K, Barbosa, SM, Conceicao, R, Neves, S, Neves, S, Harrison, G & Collares Pereira, M 2016, 'Saharan dust electrification perceived by a triangle of atmospheric electricity stations in Southern Portugal', Journal of Electrostatics, vol. 84, pp. 106-120. https://doi.org/10.1016/j.elstat.2016.10.002
Silva, HG ; Lopes, F ; Pereira, S ; Nicoll, Kerianne ; Barbosa, S M ; Conceicao, R ; Neves, S ; Neves, S ; Harrison, Giles ; Collares Pereira, M. / Saharan dust electrification perceived by a triangle of atmospheric electricity stations in Southern Portugal. In: Journal of Electrostatics. 2016 ; Vol. 84. pp. 106-120.
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