Abstract
Electric and magnetic signatures of dust devils from the 2000–2001 MATADOR desert tests
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona, USA
Space Science Laboratory, University of California, Berkeley, California, USA
NASA Glenn Research Center, Cleveland, Ohio, USA
SETI Institute, Mountain View, California, USA
Department of Atmospheric Sciences, University of Washington, Seattle, Washington, USA
Jet Propulsion Laboratory, Pasadena, California, USA
Jet Propulsion Laboratory, Pasadena, California, USA
NASA Earth Science Technology Office, Greenbelt, Maryland, USA
Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan, USA
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Department of Computer and Electrical Engineering, Duke University, Durham, North Carolina, USA
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
NASA Glenn Research Center, Cleveland, Ohio, USA
Dust devils are significant meteorological phenomena on Mars: They are ubiquitous, continually gardening the Martian surface, and may be the primary atmospheric dust-loading mechanism in nonstorm seasons. Further, dust grains in the swirling dust devils may become electrically charged via triboelectric effects. Electrical effects associated with terrestrial dust devils have been reported previously, but these were isolated measurements (electric fields only) with no corroborating measurements. To study the fluid and electrical forces associated with dust devils, NASA's Human Exploration and Development of Space (HEDS) enterprise sponsored a set of desert field tests with a suite of mutually compatible and complementary instruments in order to determine the relationship between electric, magnetic, and fluid forces. The project (originally a selected flight project) was entitled “Martian ATmosphere And Dust in the Optical and Radio” (MATADOR). In this work, we present a number of interesting examples of the electromagnetic nature of the dust devil. We also describe potential hazards of the dust devil and how similar devil- and storm-related forces on Mars might affect any human occupation.
Received 18 March 2003; accepted 28 October 2003; published 5 March 2004.
Citation: (2004), Electric and magnetic signatures of dust devils from the 2000–2001 MATADOR desert tests, J. Geophys. Res., 109, E03004, doi:10.1029/2003JE002088.
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