Physics
Scientific paper
Nov 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30vpla1r&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 22, pp. PLA 1-1, CiteID 2140, DOI 10.1029/2003GL017879
Physics
11
Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Electromagnetics: Plasmas, Meteorology And Atmospheric Dynamics: Atmospheric Electricity, Meteorology And Atmospheric Dynamics: Convective Processes, Planetary Sciences: Meteorology (3346)
Scientific paper
Triboelectric charging of saltating and colliding sand and dust particles produces strong electric fields in terrestrial dust devils and dust storms. Acceleration of the charged particles, as well as microdischarges between them, generates wideband electromagnetic radiation. Similar phenomena are expected to be ubiquitous on Mars, because Martian dust devils and dust storms are larger, stronger and more frequent than their terrestrial analogues, and electrical discharges occur at a much lower potential gradient in the thin Martian atmosphere. We present theoretical arguments and observational evidence that Martian dust events produce nonthermal wideband electromagnetic radiation detectable from Earth.
Atreya Sushil K.
de Pater Imke
Renno Nilton O.
Roos-Serote Maarten
Wong Ah San
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