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Host: Institute for Mathematics and its Applications
Homepage: http://www.ima.umn.edu/geoscience/winter/g6.html
Email: staff@ima.umn.edu
Organizers: D. Holm, J. McWilliams
Description:
A distinctive difficulty in climate-system modeling, analysis and prediction is the presence of
two or more time scales in the problem. The atmosphere and oceans each support slow
Rossby and fast inertia-gravity waves, while the characteristic times of atmosphere, oceans,
and ice sheets are about a factor of 10 apart. Thus the proper treatment, via slaved-variable
and slow-manifold theory of time-scale disparity within each subsystem and between
subsystems is of the essence. The workshop topics will include
(i) the connection between the slow manifold, averaged descriptions, the quasi-geostrophic approximation, and intermediate balanced models;
(ii) models of the coupled ocean-atmosphere system;
(iii) coupling between the wind-driven and thermohaline ocean circulation; and
(iv) slow-manifold theory. Tools such as asymptotics, averaging, center manifold, inertial manifold, attractors and their approximations are indispensable for dealing with these problems.
Keywords: coupling, ENSO, intermediate models
Date received: January 31, 2001
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