搜索结果: 1-12 共查到“海洋科学 western boundary currents”相关记录12条 . 查询时间(0.216 秒)
Potential Vorticity Sources and Sinks in a Quasi-geostrophic Ocean：beyond Western Boundary Currents
eddy-resolving general circulation model Potential Vorticity Sources Quasi-geostrophic Ocean
2008/12/30
Potential vorticity dynamics for a quasi-geostrophic eddy-resolving general circulation model (EGCM) are studied in order to determine the effects of mesoscale variability on the potential vorticity d...
Matching a Ventilated Thermocline Model with Inertial Western Boundary Currents
Ventilated Thermocline Model Inertial Western Boundary Currents western boundary region
2008/12/30
A two-layered ventilated thermocline model is matched with inertial western boundary currents in the southern part of the western boundary region. For general cases the western boundary currents break...
The Link between Western Boundary Currents and Equatorial Undercurrents
Equatorial Undercurrent Western Boundary Currents
2008/12/24
A constant potential vorticity model is used to investigate the relation between the properties of an equatorward-directed western boundary current and the formation of the Equatorial Undercurrent (EU...
Nonlinear Disturbances of Western Boundary Currents
Nonlinear Disturbances Western Boundary Currents
2008/12/19
Viscous shear instability is proposed as a primary mechanism for generating time-dependent eddies at western boundaries. Thus, the authors examine the stability of the Munk flow with constant transpor...
On the Role of Dissipation in Inertial Western Boundary Currents
Inertial Western Boundary Currents western boundary layer
2008/12/17
The problem of matching the nonlinear, frictional flow in a simple western boundary layer to a specified interior flow is considered. Two problems are discussed, using streamfunction as a coordinate a...
The Asymmetry of Western Boundary Currents in the Upper Atlantic Ocean
western boundary current Upper Atlantic Ocean
2008/12/15
Observations of upper-ocean western boundary current (WBC) transports reveal asymmetries between the Northern and the Southern Hemispheres of the Atlantic Ocean. To find out what mechanism might cause...
Vorticity Dissipation by Western Boundary Currents in the Presence of Outcropping Layers
Vorticity Dissipation Outcropping Layers Western Boundary Currents
2008/12/11
In an exploration of the dynamics of current separation and vorticity dissipation in a two-layer model, the following is found. 1) Results obtained in a barotropic context remain valid; namely, two ma...
In this paper a linear theory for the barotropic large-scale current fluctuations at midlatitudes driven by fluctuating winds is presented. It is based on both numerical and analytical arguments and p...
Stability of Western Boundary Currents with an Application to Pulselike Behavior of the Agulhas Current
Western Boundary Currents Pulselike Behavior Agulhas Current
2008/7/31
The northern Agulhas Current off South Africa displays very steady flow characteristics. Roughly five to six times per year the flow is disrupted by the passage of large solitary meanders, propagating...
Why Western Boundary Currents in Realistic Oceans are Inviscid: A Link between Form Stress and Bottom Pressure Torques
Western Boundary Currents Realistic Oceans Link Bottom Pressure Torques
2008/7/31
It is shown that wind stress curl is balanced by bottom pressure torque in a zonal integral over any strip wide enough to smooth out the effect of nonlinear terms (typically about 3° of latitude). The...
An analytic solution is presented for the steady-state depth-averaged western boundary current flowing over the continental slope by combining three highly idealized models: the Stommel model, the Mun...
Dynamics of Separating Western Boundary Currents
Dynamics Separating Western Boundary Currents
2008/7/8
In this work, Pratt and Stern’s quasigeostrophic, 1½-layer, infinite jet model is connected to a western boundary by a system of two converging boundary currents. The model has a piecewise cons...