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Irregular Grid Finite-Difference Techniques：Simulations of Oscillations in Shallow Circular Basins
Irregular Grid Finite-Difference Techniques Oscillations Shallow Circular Basins
2009/3/7
Finite-difference techniques for irregular computational grids are presented. Successful simulations of transient normal mode oscillations in shallow circular basins, where analytic solutions are know...
Comparison of Finite-Element and Finite-Difference Schemes. Part II：Two-Dimensional Gravity Wave Motion
Finite-Element Finite-Difference Schemes Two-Dimensional Gravity Wave Motion
2009/2/23
Irregular grid finite-difference techniques lead to equations similar to those obtained using finite-element techniques. The simpler finite-difference equations offer the advantage of greater computat...
Comparison of Finite-Element and Finite-Difference Schemes. Part I：One-Dimensional Gravity Wave Motion
Finite-Element One-Dimensional Gravity Wave Motion Finite-Difference Schemes
2009/2/23
The finite-element scheme requires more computational expense because it is time-implicit and because it requires a smaller time step than the finite-difference scheme. Simulations of normal mode osci...
The Free Kelvin Wave in Finite-Difference Numerical Models
Free Kelvin Wave Finite-Difference Numerical Models
2009/2/6
The effects of viscosity and finite- differencing on free Kelvin waves in numerical models (which employ the Arakawa B- or C-grid difference schemes) are investigated using the f-plane shallow-water e...
Solution of Nonlinear Finite Difference Ocean Models by Optimization Methods with Sensitivity and Observational Strategy Analysis
Nonlinear Finite Difference Ocean Models Optimization Methods
2009/1/13
Dynamical models driven by “observed” forcing fields (e.g., the wind) have a true solution uncertainty owing to observational errors in the driving. This uncertainty is usually hidden from view becaus...
Free Planetary Waves in Finite-Difference Numerical Models
Free Planetary Waves Finite-Difference Numerical Models
2009/1/12
The effects of spatial finite-differencing, viscosity and diffusion on unbounded planetary waves in numerical models are investigated using a quasi-geostrophic approximation to the midlatitude, β-plan...
The North Atlantic Circulation in the Early 1980s-An Estimate from Inversion of a Finite-Difference Model
North Atlantic Circulation Finite-Difference Model
2008/12/18
A finite-difference model of the North Atlantic is constructed for the purpose Of making an estimate of the circulation through an inverse calculation. The database is eclectic, and includes hydrograp...
Adaptive Mesh Refinement for Finite-Difference Ocean Models: First Experiments
Adaptive Mesh Refinement Finite-Difference Ocean Models
2008/7/11
The application of an adaptive mesh refinement (AMR) method for structured mesh is examined in the context of ocean modeling. This method can be used with existing finite-difference ocean models at li...