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updated 08/10/05
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The Geophysical Turbulence Program Workshop on
Coherent Structures in Atmosphere and Ocean
at the National Center for Atmospheric Research (NCAR) Boulder, CO USA
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Dates: July 11 to 14 2005
Venue:
The National Center for Atmospheric Research
1850 Table Mesa Dr.
Boulder, Colorado, USA
Mesa Lab
Main Seminar Room
Coordinators:
- Joe Tribbia (NCAR/GTP)
- Yoshi Kimura (Nagoya University)
- Jean-Marc Chomaz (Ecole Polytechnique/LadHyX)
Scientific Program: Coherent structures are ubiquitous
in atmosphere and ocean, and clarifying their mechanism is
directly related to delineating important aspects of
geophysical turbulence. The purpose of this workshop is to
survey the functions and features of coherent structures in
geophysical turbulence by exchanging ideas from the theory,
experiment/observation and computation. The following three
topics are planned to be discussed in the workshop:
- Vortices and waves in rotating stratified flows (dynamics and stability)
In the past few years great progresses have been made in
identifying new instability mechanisms of coherent structures
in stratified and rotating flows (elliptic, hyperbolic, helical
centrifuge, inertial and zigzag instabilities). We consider
how these instabilities may affect the mechanisms of vortices
and waves in rotating stratified flows.
- Cascade processes in geophysical turbulence
Having a clear insight on the energy cascade mechanism in
relation with coherent structures in geophysical turbulence is
very crucial to build well-defined and reliable turbulence
models for the weather and climate forecast.
- Stirring, mixing and transport in geophysical flows
Stirring and mixing are important in understanding the overall
transport mechanisms in geo fluid dynamics as well as in
engineering fluid dynamics. Transport of various geophysical
quantities such as moisture, heat, salinity is a key ingredient
for better prediction of atmosphere and ocean beyond the
transport of energy and momentum for basic turbulence.
Keynote speakers: James Riley (University of
Washington), David Dritschel (St. Andrews University), David
Montgomery (Dartmouth College), Claude Cambon (Lyon), Geoffrey
Spedding (University of Southern California), Joe Fernando
(Arizona State University), Philip Marcus (University of
California at Berkeley), Herman Clercx (Eindhoven University of
Technology), Peter Bartello (McGill University), Erik Lindborg
(KTH Mechanics), Michael McIntyre (University of Cambridge)
Support: Partial funding is confirmed or expected from:
- Geophysical Turbulence Program of NCAR
- NSF/USA
- Ecole Polytechnique/France
- JSPS/Japan
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