Factors affecting the electrification of wind-driven dust studied with laboratory simulations

J. P. Merrison, H. P. Gunnlaugsson, M. R. Hogg, M. Jensen, J. M. Lykke, M. Bo Madsen, Martin Bo Nielsen, P. Nørnberg, T. A. Ottosen, R. T. Pedersen, S. Pedersen, A. V. Sørensen

Research output: Contribution to journalArticle

Abstract

The electrification of wind-blown dust grains was studied in a series of laboratory experiments to examine how grain electrification depends on grain size, grain mineralogy, atmospheric composition, atmospheric pressure, and the method of dust dispersal. This work is intended to contribute to a deeper physical understanding of particle electrification on both Mars and Earth. Findings indicate that the amount of electrification per suspended particle generally is independent of dust entrainment process and atmospheric composition. As expected, the electrification process is grain size-dependent, with smaller grains predominantly electrifying negatively. Although there appears to be a weak dependence upon dust mineralogy, this work supports the expectation that dust suspended in the Martian atmosphere will be significantly electrified.

Original languageEnglish (US)
Pages (from-to)328-335
Number of pages8
JournalPlanetary and Space Science
Volume60
Issue number1
DOIs
StatePublished - Jan 1 2012

Fingerprint

electrification
dust
atmospheric composition
simulation
mineralogy
grain size
Martian atmosphere
entrainment
mars
atmospheric pressure
Mars
laboratory
atmospheres

Keywords

  • Aerosol
  • Dust
  • Electrification
  • Mars
  • Wind

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Merrison, J. P., Gunnlaugsson, H. P., Hogg, M. R., Jensen, M., Lykke, J. M., Madsen, M. B., ... Sørensen, A. V. (2012). Factors affecting the electrification of wind-driven dust studied with laboratory simulations. Planetary and Space Science, 60(1), 328-335. https://doi.org/10.1016/j.pss.2011.10.008

Factors affecting the electrification of wind-driven dust studied with laboratory simulations. / Merrison, J. P.; Gunnlaugsson, H. P.; Hogg, M. R.; Jensen, M.; Lykke, J. M.; Madsen, M. Bo; Nielsen, Martin Bo; Nørnberg, P.; Ottosen, T. A.; Pedersen, R. T.; Pedersen, S.; Sørensen, A. V.

In: Planetary and Space Science, Vol. 60, No. 1, 01.01.2012, p. 328-335.

Research output: Contribution to journalArticle

Merrison, JP, Gunnlaugsson, HP, Hogg, MR, Jensen, M, Lykke, JM, Madsen, MB, Nielsen, MB, Nørnberg, P, Ottosen, TA, Pedersen, RT, Pedersen, S & Sørensen, AV 2012, 'Factors affecting the electrification of wind-driven dust studied with laboratory simulations', Planetary and Space Science, vol. 60, no. 1, pp. 328-335. https://doi.org/10.1016/j.pss.2011.10.008
Merrison, J. P. ; Gunnlaugsson, H. P. ; Hogg, M. R. ; Jensen, M. ; Lykke, J. M. ; Madsen, M. Bo ; Nielsen, Martin Bo ; Nørnberg, P. ; Ottosen, T. A. ; Pedersen, R. T. ; Pedersen, S. ; Sørensen, A. V. / Factors affecting the electrification of wind-driven dust studied with laboratory simulations. In: Planetary and Space Science. 2012 ; Vol. 60, No. 1. pp. 328-335.
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