18 OctEarth Science and Engineering Graduate SeminarFluid Dynamics and Statistics of Atmospheric Dust Devils
Fluid Dynamics and Statistics of Atmospheric Dust Devils
  • Dr. Michael Kurgansky
  • Moscow Institute of Atmospheric Physics, Russia
  • Wednesday, October 18, 2017
  • 04:15 PM - 05:15 PM
  • Lecture Hall 1 (2322), Engineering and Science Hall (Building 9)
2017-10-18T16:152017-10-18T17:15Asia/RiyadhFluid Dynamics and Statistics of Atmospheric Dust DevilsLecture Hall 1 (2322), Engineering and Science Hall (Building 9)Emmanuelle Sougrat

​​​Abstract: In the first part of the talk, I will overview the recent results of fluid dynamical and statistical modeling of atmospheric dust devils both on Earth and Mars and discuss the mechanisms of vorticity genesis and the environmental conditions that are conducive to the formation of dust devils. Simple analytical models for the flow structure of dust devils in steady state are reviewed and illustrated with some reported in the literature results from high-resolution numerical simulations.​

In the second part of the talk, I will discuss how to parameterize in an optimal way the statistical distributions of dust devil pressure and diameter parameters, with different authors advocating power-law or exponential fits, cumulative or differential histograms.

Bio: Prof. Michail Kurgansky graduated in 1972 with distinction from the Moscow State University with MS in physics. He obtained Ph.D. in Physical and Mathematical Sciences in 1977 from the Moscow State University, and habilitation in 1990 from the Russian Hydrometeorological Center. Since 1974 he is associated with the Institute of Atmospheric Physics of the Russian Academy of Sciences in Moscow as a Ph.D. student, a junior academic researcher, a senior academic researcher, a head of the laboratory and currently as an academic research leader. During 1979-2000 and since 2011 he is a part-time professor at the Moscow State University. In 2000-2010 worked as a full professor at the University of Concepcion, Chile. Prof. Kurgansky published more than 90 papers in peer-reviewed journals and two monographs. In 1999-2003 and since 2011 up to date, he chairs the Commission on Dynamic Meteorology at the Russian Geophysical Committee. In 1999-2015 he was a member of the International Commission on Dynamic Meteorology at the International Association of Meteorology and Atmospheric Sciences (IAMAS). Prof. Kurgansky is a member of the editorial board of the Russian Izvestiya Atmospheric and Oceanic Physics journal and a member of the American Geophysical Union (AGU).

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  • Emmanuelle Sougrat

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