Are fast-growing Martian dust storms compressible?

Details Are fast-growing Martian dust storms compressible? Are fast-growing Martian dust storms compressible?

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.2345p&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 15, p. 2345-2348

Computer Science

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Atmospheric Composition And Structure: Aerosols And Particles, Planetology: Solid Surface Planets: Atmospheres-Structure And Dynamics, Planetology: Solar System Objects: Mars

Scientific paper

A simple scale analysis demonstrates that rapidly-expanding Martian dust storms are driven by extremely large density differences. Thermal gradients appear to be inadequate to produce these density contrasts. When dust produces the densities required, the storms become compressible because of the slowing of the speed of sound due to the addition of particles. Though compressible, particle-laden flows have never been analyzed due to their highly complex nature, pressure waves produced by these flows could be hypothesized to provide a positive feedback capable of producing rapid growth.

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