Power law of dust devil diameters on Mars and Earth |
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Authors: | Ralph D Lorenz |
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Institution: | Johns Hopkins University, Applied Physics Laboratory, Laurel, MD 20723, USA |
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Abstract: | Estimates from visual surveys of the frequency of dust devils, even at terrestrial localities known for their abundance, vary by some four orders of magnitude, making a quantitative hazard assessment difficult. Here I show (1) that new high-quality observations from Mars fit a power law size distribution, (2) that such a power law population can unify the discrepant terrestrial surveys, and (3) that the populations on the two planets appear similar. |
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Keywords: | Mars Atmosphere Meteorology Earth |
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