Saltation Sandblasting behavior during mineral dust aerosol production

Details Saltation Sandblasting behavior during mineral dust aerosol production Saltation Sandblasting behavior during mineral dust aerosol production

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29r..15g&link_type=abstract

Geophysical Research Letters, Volume 29, Issue 18, pp. 15-1, CiteID 1868, DOI 10.1029/2002GL015248

Physics

9

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801)

Scientific paper

The dominant process in producing fine dust aerosols during saltation is thought to be sandblasting. Recent studies claim that due to competing physical processes, emission efficiencies of dust aerosols oscillate with increasing wind friction speed. These oscillations can result in order of magnitude changes in dust mass emissions. Our work shows that emission efficiencies, and hence emissions of dust aerosols are smooth functions of the wind friction speed for natural soil size distributions. This rules out oscillations as an explanation for scatter in experimental data. We show and explain the reasons for the oscillations.

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