Dust Devils on Mars: Effects of Surface Roughness on Particle ThresholdDust devils have been proposed as effective mechanisms for lofting large quantities of dust into the martian atmosphere. Previous work showed that vortices lift dust more easily than simple boundary layer winds. The aim of this study is to determine experimentally the effects of non-erodable roughness elements on vortex particle threshold through laboratory simulations of natural surfaces. Additional information is included in the original extended abstract.
Document ID
20050172145
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Neakrase, Lynn D. (Arizona State Univ. Tempe, AZ, United States)
Greeley, Ronald (Arizona State Univ. Tempe, AZ, United States)
Iversen, James D. (Iowa State Univ. of Science and Technology Ames, IA, United States)
Balme, Matthew L. (Arizona State Univ. Tempe, AZ, United States)
Foley, Daniel J. (Arizona State Univ. Tempe, AZ, United States)
Eddlemon, Eric E. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Publication Information
Publication: Lunar and Planetary Science XXXVI, Part 14