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

Sliva, H. G., Lopes, F. M., Pereira, S., Nicoll, K., Barbosa, S. M., Conceicao, R., Neves, S., Harrison, R. G. and Collares Pereira, M. (2016) Saharan dust electrification perceived by a triangle of atmospheric electricity stations in Southern Portugal. Journal of Electrostatics, 84. pp. 106-120. ISSN 0304-3886

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To link to this item DOI: 10.1016/j.elstat.2016.10.002

Abstract/Summary

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.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:67778
Publisher:Elsevier

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