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Forced two layer beta-plane quasi-geostrophic flow

We consider a model of quasigeostrophic turbulence that has proven useful in
theoretical studies of large scale heat transport and coherent structure formation in
planetary atmospheres and oceans. The model consists of a coupled pair of hyperbolic
PDE’s with a forcing which represents domain-scale thermal energy source. Although
the use to which the model is typically put involves gathering information from very
long numerical integrations, little of a rigorous nature is known about long-time properties
of solutions to the equations. In the first part of my dissertation we define a
notion of weak solution, and show using Galerkin methods the long-time existence
and uniqueness of such solutions. In the second part we prove that the unique weak
solution found in the first part produces, via the inverse Fourier transform, a classical
solution for the system. Moreover, we prove that this solution is analytic in space
and positive time.

Identiferoai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/3164
Date12 April 2006
CreatorsOnica, Constantin
ContributorsFoias, Ciprian
PublisherTexas A&M University
Source SetsTexas A and M University
Languageen_US
Detected LanguageEnglish
TypeBook, Thesis, Electronic Dissertation, text
Format317327 bytes, electronic, application/pdf, born digital

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