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A Simple Linear Model of the Depth Dependence of the Wind-Driven Variability of the Meridional Overturning Circulation
Publisher: American Meteorological Society
Abstract: The part of the meridional overturning circulation driven by time-varying winds is usually assumed to be an Ekman flux within a mixed layer, and a depth- and laterally independent return flow beneath. For a simple linear ...
An Equivalent-Barotropic Mode in the Fine Resolution Antarctic Model
Publisher: American Meteorological Society
Abstract: Both the 6-year time-mean flow and the eddy kinetic energy in the Fine Resolution Antarctic Model are found to be approximately self-similar in the vertical, with the velocity showing a rapid decay with depth. A simple ...
On the Circulation of a Homogeneous Ocean Induced by the Presence of Continental Slopes
Publisher: American Meteorological Society
Abstract: The three-dimensional circulation of a steady, frictional, homogeneous ocean forced by a wind stress varying sinusoidally in the northward direction is examined, with reference to the effects of continental slopes. It is ...
The Time-dependent Collapse of a Rotating Fluid Cylinder
Publisher: American Meteorological Society
Abstract: The behavior of a reduced-gravity cylinder of fluid, released from rest in a rotating system, is considered. The eventual steady state, found by normal principles of conservation of angular momentum, mass, and potential ...
Flow Properties in Rotating, Stratified Hydraulics
Publisher: American Meteorological Society
Abstract: This paper discusses three distinct features of rotating, stratified hydraulics, using a reduced-gravity configuration. First, a new upstream condition is derived corresponding to a wide, almost motionless basin, and this ...
Cross-equatorial Geostrophic Adjustment
Publisher: American Meteorological Society
Abstract: A geostrophic adjustment model is used to find out how water can cross the equator, and how far it can reach, while conserving its potential vorticity, in the context of geostrophic adjustment. A series of problems is ...
On the Role of Dissipation in Inertial Western Boundary Currents
Publisher: American Meteorological Society
Abstract: 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 across the boundary ...
Estimating Bolus Velocities from Data—How Large Must They Be?
Publisher: American Meteorological Society
Abstract: This paper examines the representation of eddy fluxes by bolus velocities. In particular, it asks the following: 1) Can an arbitrary eddy flux divergence of density be represented accurately by a nondivergent bolus flux ...
Coastal Upwelling and Kelvin Waves with Small Longshore Topography
Publisher: American Meteorological Society
Abstract: A simple, uniformly stratified, linear model is developed to examine the effects on upwelling and internal Kelvin wave propagation of small, slow, longshore varying topography and coastline. The condition of no normal flow ...
Time Interpolation of Forcing Fields in Ocean Models
Publisher: American Meteorological Society
Abstract: It is shown that the usual practice of forcing ocean models by linear interpolations of monthly mean data values does not produce a forcing whose mean over a month is the data value required. For wind stress data this can ...