Statistics – Methodology
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30tpla2f&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 20, pp. PLA 2-1, CiteID 2050, DOI 10.1029/2003GL017606
Statistics
Methodology
17
Meteorology And Atmospheric Dynamics: Atmospheric Electricity, Meteorology And Atmospheric Dynamics: Planetary Meteorology (5445, 5739), Planetary Sciences: Atmospheres-Structure And Dynamics, Planetary Sciences: Meteorology (3346)
Scientific paper
We present an electrodynamic model of a dust devil applying a similar methodology as performed previously for charging in terrestrial thunderstorms. While thunderstorm processes focus on inductive charging between large graupel and smaller ice and water droplets, we tailor the model to focus on the electric charge transfer between dust grains of different sizes and compositions. We specifically compare and contrast the triboelectric dust charging processes presented previously in Melnik and Parrot [1998] and Desch and Cuzzi [2000] in the development of macroscopic dust devil electric fields. We find that large vertical E-fields (~20 kV/m) can develop in the devil.
Cummer Steven A.
Delory Greg T.
Farrell William M.
Marshall John R.
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