Dale R. Durran学术讲座

       题  目：The Behavior and Up-Scale Influence of Gravity Wave Drag in a Slowly Evolving Flow 
       主讲人： Dale R. Durran 
       时  间：2009年4月22日（星期三）下午14：30 
       地  点：本部齐云楼0310室

主讲人简介： 
       Dale Durran is currently the chairman of the Department of Atmospheric Sciences at the University of Washington, one of the world's leading atmospheric science departments. Professor Durran received a Master's degree in Mathematics from the University of California at Berkeley, and a Ph.D in Meteorology from the Massachusetts Institute of Technology. Much of his research has focused on the influence of mountains on the atmosphere and on numerical methods for simulating atmospheric flows. 
       Durran's research on the flow over mountains includes studies of mountain waves, downslope winds and rotor circulations, the influence of mountain-wave induced drag on the larger scale flow, and orographic precipitation. His work on numerical methods includes the formulation of wave absorbing boundary conditions for limited area models and the development of approximate sets of governing equations for the accurate and efficient modeling of low-Mach-number disturbances in compressible stratified fluids. Recently he has been investigating the dynamics of very thin tropical cirrus clouds that appear to play an important role in the transport of water vapor into the stratosphere
(thereby influencing the chemistry and radiative heating in that region). 
       Durran has written one graduate-level textbook, Numerical Methods for Wave Equations in Geophysical Fluid Dynamics, authored 79 peer-reviewed publications and created a high-definition time-lapse movie of mountain wave clouds. He has supervised 10 Ph.D students most of whom are currently university professors or researchers in government labs. Durran is a Fellow of the American Meteorological Society.

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