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Maps from the Mid-Ocean Dynamics Experiment：Part II. Potential vorticity and its Conservation
Mid-Ocean Dynamics Experiment Conservation Potential vorticity
2009/3/7
Observations of float trajectories and vertical density profiles from the Mid-Ocean Dynamics Experiment are analyzed in terms of a likely equation of motion for mesoscale eddies involving the conserva...
Horizontal Divergence and Vorticity Estimates from Velocity and Temperature Measurements in the MODE Region
Horizontal Divergence MODE Region Vorticity Estimates
2009/3/7
Estimates of horizontal derivatives of velocity made by differencing velocity measurements are used to show that the observed velocity field due to low-frequency mesoscale motions during the prelimina...
On the Momentum, Vorticity and Mass Balance on the Oregon Shelf
Mass Balance Oregon Shelf Velocity measurements
2009/2/23
Velocity measurements from the continental shelf off Oregon taken during the Coastal Upwelling Experiment CUE-2 in the summer of 1973 are utilized to investigate momentum, vorticity and mass balance r...
Some Eulerian-Scale Analysis Results：Eddy Terms in the Mean Heat, Momentum and Vorticity Equations
Eulerian-Scale Analysis Results Eddy Terms Mean Heat Vorticity Equations
2009/2/18
The question of the importance of mesoscale motions in the long time averaged ocean circulation is examined from the viewpoint offered by Eulerian scale estimates of the magnitudes of the explicit edd...
Regional Eddy Vorticity Transport and the Equilibrium Vorticity Budgets of a Numerical Model Ocean Circulation
Regional Eddy Vorticity Transport Equilibrium Vorticity Numerical Model Ocean Circulation
2009/2/9
The dynamical balances of the mean flow of a numerical model ocean general circulation experiment are examined through evaluation of regional vorticity budgets. The instantaneous flow is strongly time...
North Atlantic Potential Vorticity and Its Relation to the General Circulation
Atlantic Potential Vorticity General Circulation
2009/2/8
Maps and sections of the large-scale North Atlantic potential vorticity q are presented. Here q is fdρ/dz, where f is the Coriolis frequency, ρ the potential density and z the vertical coordinate. The...
Ventilation, Potential-Vorticity Homogenization and the Structure of the Ocean Circulation
Potential-Vorticity Homogenization Ocean Circulation Ventilation
2009/2/6
A model for the vertical structure of the oceanic circulation is presented that combines elements of the theory of the ventilated thermocline, given by Luyten, Pedlosky and Stommel, with the theory of...
Can the Western Boundary Layer Affect the Potential Vorticity Distribution in the Sverdrup interior of a Wind Gyre?
Western Boundary Layer Potential Vorticity Wind Gyre
2009/2/6
The question posed in the title of this paper is answered in the affirmative by investigating a two-layer, quasi-geostrophic model of the wind-driven circulation. The two layers model the thermocline ...
Time-Dependent Temperature and Vorticity Balances in the Atlantic North Equatorial Current
Time-Dependent Temperature Vorticity Balances Atlantic North Equatorial Current
2009/1/22
The nature of the temperature and vorticity balances of the Atlantic North Equatorial Current is examined at three different depths and four different frequency bands using the POLYMODE Array III, Clu...
The Ventilation of the World’s Oceans：Maps of the Potential vorticity Field
World’s Oceans Potential vorticity Field
2009/1/15
Maps of potential vorticity (q) within four different density layers are presented for the North and South Atlantic, North and South Pacific, and Indian Oceans. Potential vorticity is evaluated as (f/...
On the Potential Vorticity Structure of Weakly Ventialted Isopycnals：A Theory of Subtropical Mode Water Maintenance
Potential Vorticity Structure Weakly Ventialted Isopycnals Subtropical Mode Water Maintenance
2009/1/12
A two-layer model of the general circulation including wind and thermal forcing is discussed. The flow in each layer is geostrophic, hydrostatic and obeys linear potential vorticity constraints. The e...
Dynamics of Potential Vorticity Fronts and Eddy Detachment
Potential Vorticity Fronts Eddy Detachment
2009/1/12
The formation and detachment of quasi-geostrophic eddies in a 1½ layer jet is studied using a piecewise uniform potential vorticity model. A vorticity front separates the two pieces, and thus t...
Eddy-Potential vorticity Fluxes in the Gulf Stream Recirculation
Eddy-Potential vorticity Fluxes Gulf Stream Recirculation
2009/1/10
The local effect of the mesoscale eddy field on the mean potential vorticity distribution of the Gulf Stream recirculation region is determined from the quasi-geostrophic eddy potential vorticity flux...
An Objective Analysis of the POLYMODE Local Dynamics Experiment. Part II：Streamfunction and Potential Vorticity Fields during the Intensive Period
Local Dynamics Experiment Streamfunction Potential Vorticity Fields Intensive Period
2009/1/10
An analysis is made of the geostrophic streamfunction, potential vorticity and dynamical balances for the mesoscale flow during the intensive Period of the POLYMODE Local Dynamics Experiment The metho...
Analytical solutions are found for topographic waves propagating over step bottom slopes in a two-layer infinite channel. From the inviscid unforced long-wave equation for a two-layer fluid on an f-pl...