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An Ocean Circulation Model Based on Operator-Splitting, Hamiltonian Brackets, and the Inclusion of Sound Waves
Publisher: American Meteorological Society
Abstract: This paper offers a simple, entirely prognostic, ocean circulation model based on the separation of the complete dynamics, including sound waves, into elementary Poisson brackets. For example, one bracket corresponds to ...
A General Method for Conserving Energy and Potential Enstrophy in Shallow-Water Models
Publisher: American Meteorological Society
Abstract: The shallow-water equations may be posed in the form df?/dt = {F, H, Z}, where H is the energy, Z is the potential enstrophy, and the Nambu bracket {F, H, Z} is completely antisymmetric in its three arguments. This makes ...
The Shape of the Main Thermocline
Publisher: American Meteorological Society
Abstract: The mean ocean density field resembles the state of maximum entropy with given values for the upper water mass, total energy and potential enstrophy. Numerical experiments confirm that the thermocline of a freely evolving ...
Poisson-Bracket Approach to the Construction of Energy- and Potential-Enstrophy-Conserving Algorithms for the Shallow-Water Equations
Publisher: American Meteorological Society
Abstract: Arakawa and Lamb discovered a finite-difference approximation to the shallow-water equations that exactly conserves finite-difference approximations to the energy and potential enstrophy of the fluid. The Arakawa? Lamb ...
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