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Global-Scale Water Masses, Meridional Circulation, and Heat Transport Simulated with a Global Isopycnal Ocean Model
Global-Scale Water Masses Meridional Circulation Heat Transport isopycnal ocean models
2008/11/11
The goal of this study is to fill the gap in equilibrium solutions of the global-scale water masses, meridional circulation, and heat transport with isopycnal ocean models. To this end, a global isopy...
Emergence of Inertial Gyres in a Two-Layer Quasigeostrophic Ocean Model
Inertial Gyres Two-Layer Quasigeostrophic Ocean Model
2008/10/31
The emergence of Fofonoff-like flows over a wide range of dissipative parameter regimes is explored in a wind-driven two-layer quasigeostrophic model. Two regimes are found in which Fofonoff-like circ...
Sensitivity of the GFDL Modular Ocean Model to Parameterization of Double-Diffusive Processes
GFDL Modular Ocean Model Parameterization Double-Diffusive Processes
2008/10/29
The effect of double-diffusive mixing on the general circulation is explored using the GFDL MOM2 model. The motivation for this comes from the known sensitivity of the thermohaline circulation to the ...
Interdecadal Variability in a Zonally Averaged Ocean Model: An Adjustment Oscillator
Zonally Averaged Ocean Model Oscillator Interdecadal Variability
2008/10/28
A meridional-plane, hemispherical ocean model is developed to study interdecadal variability of the thermohaline circulation (THC). The model differs from previous formulations of zonally averaged oce...
Meridional Overturning and Dianeutral Transport in a z-Coordinate Ocean Model Including Eddy-Induced Advection
Dianeutral Transport z-Coordinate Ocean Model Eddy-Induced Advection
2008/10/28
The present study examines the marked changes in the patterns of meridional overturning and dianeutral motion that occur upon introduction of the Gent and McWilliams (GM) scheme for eddy-induced trans...
Subgrid-Scale Eddy Parameterization by Statistical Mechanics in a Barotropic Ocean Model
Eddy Parameterization Barotropic Ocean Model Statistical Mechanics
2008/10/28
The feasibility of using a subgrid-scale eddy parameterization, based on statistical mechanics of potential vorticity, is investigated. A specific implementation is derived for the somewhat classi...
Another Reason Why Simple Discretizations of Rotated Diffusion Operators Cause Problems in Ocean Models: Comments on “Isoneutral Diffusion in a z-Coordinate Ocean Model”
Isoneutral Diffusion z-Coordinate Ocean Model Rotated Diffusion
2008/10/27
In recent papers (Griffies et al. 1998; Griffies 1998), the problem of isopycnal diffusion and Gent–McWilliams stirring in z-coordinate models was reviewed and a new discretization proposed. It was sh...
The Impact of Southern Ocean Sea Ice in a Global Ocean Model
Southern Ocean Global Ocean Model Sea Ice
2008/10/24
Most of the Southern Ocean (SO) is marginally stably stratified and thus prone to enhanced convection and possibly bottom-water formation whenever the upper ocean is cooled or made more saline by ice ...
Multiple Equilibria of a Double-Gyre Ocean Model with Super-Slip Boundary Conditions
Multiple Equilibria Super-Slip Boundary Conditions Double-Gyre Ocean Model
2008/10/23
The steady-state solutions of a barotropic double-gyre ocean model in which the wind stress curl input of vorticity is balanced primarily by bottom friction are studied. The bifurcations away from a u...
Global Bifurcation of Shilnikov Type in a Double-Gyre Ocean Model
Global Bifurcation Shilnikov Type Double-Gyre Ocean Model
2008/7/31
The dynamics of an idealized wind-driven double-gyre circulation in an ocean basin are studied from a dynamical systems point of view in an effort to better understand its variability. While previous ...
Thermohaline Circulation Studies with an Isopycnic Coordinate Ocean Model
Thermohaline Circulation Isopycnic Coordinate Ocean Model
2008/7/31
The thermohaline circulation (THC) in a 1000-yr near-global numerical simulation using the Miami Isopycnic Coordinate Ocean Model is analyzed and compared to observations. The model, driven by observe...
Geometry of Cross-Stream Mixing in a Double-Gyre Ocean Model
Cross-Stream Mixing Double-Gyre Ocean Model
2008/7/21
New dynamical systems techniques are used to analyze fluid particle paths in an eddy resolving, barotropic ocean model of the Gulf Stream. Specifically, the existence of finite-time invariant manifold...
Frontal Instabilities in a Two-Layer, Primitive Equation Ocean Model
Frontal Instabilities Two-Layer Primitive Equation Ocean Model
2008/7/10
A linear stability analysis combined with an energy analysis is performed to discriminate between the various instabilities that may develop at upwelling fronts. In the present study, a two-active-lay...
Particle Trajectories in an Indian Ocean Model and Sensitivity to Seasonal Forcing
Particle Trajectories in an Indian Ocean Model and Sensitivity to Seasonal Forcing
2008/7/10
Trajectory experiments in a thermocline layer of an Indian Ocean model are used to investigate the role of different meridional transport mechanisms and quantify spreading pathways and rates under dif...
Particle Trajectories in an Indian Ocean Model and Sensitivity to Seasonal Forcing
Particle Trajectories Indian Ocean Model Sensitivity Seasonal Forcing
2008/7/10
Trajectory experiments in a thermocline layer of an Indian Ocean model are used to investigate the role of different meridional transport mechanisms and quantify spreading pathways and rates under dif...