A Simple Thermodynamical Theory for Dust Devils
Rennó Nilton O.; Burkett, Matthew L.; Larkin, Matthew P.
1997-02-07 00:00:00
Based on the heat engine framework, a simple scaling theory for dust devils is proposed and compared to observations. This theory provides a simple physical interpretation for many of the observed characteristics of dust devils. In particular, it predicts the potential intensity and the diurnal variation of dust devil occurrence. It also predicts that the intensity of dust devils depends on the product of two thermodynamic efficiencies, corresponding respectively to vertical and horizontal temperature gradients.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngJournal of the Atmospheric SciencesAmerican Meteorological Societyhttp://www.deepdyve.com/lp/american-meteorological-society/a-simple-thermodynamical-theory-for-dust-devils-0hRnGYf0Si
Based on the heat engine framework, a simple scaling theory for dust devils is proposed and compared to observations. This theory provides a simple physical interpretation for many of the observed characteristics of dust devils. In particular, it predicts the potential intensity and the diurnal variation of dust devil occurrence. It also predicts that the intensity of dust devils depends on the product of two thermodynamic efficiencies, corresponding respectively to vertical and horizontal temperature gradients.
Journal
Journal of the Atmospheric Sciences
– American Meteorological Society
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