[Grad-postdoc-assn] ASP Seminar TODAY: Jeffrey Weiss
Mike Waite
waite at ucar.edu
Wed Jan 31 09:04:51 MST 2007
Hello all,
just a last-minute friendly reminder from your ASP seminar team about
today's talk at 11:00. Hope to see you there,
Feng, Kelley, Mike & Peter
---
Coherent Structures in Geophysical Turbulence
Jeffrey Weiss
University of Colorado, Department of Atmospheric and Oceanic Sciences
Wednesday, 31 January, 11:00 am -- 12:00 pm (Coffee etc from 10:30 am;
lunch to follow)
FL-2 Auditorium (Rm 1022)
Abstract:
Large scale atmospheric and oceanic flows are extremely turbulent and
are strongly influenced by rapid rotation and strong stable
stratification. Such flows spontaneously self-organize into coherent
structures such as jets and vortices. Recent work shows the importance
of vortices for dynamics and transport, and the impact of vortices on
chemical reactions. The mechanisms for evolution of the vortex
population are studied, showing the role of vortex merger and alignment.
Scaling theories based explicitly on the vortices successfully capture
the turbulent evolution.
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