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Effects of Alongshore Wind Stress at the Eastern Boundary on Circulation in the Ocean Pycnocline
Publisher: American Meteorological Society
Abstract: An alongshore wind stress is applied at the eastern boundary of an ocean model, and its effects on the structure of the circulation in the ventilated pycnocline are studied. The offshore surface Ekman flow associated with ...
On the Effects Of Horizontal Variability of Wind Stress on the Dynamics of the Ocean Mixed Layer
Publisher: American Meteorological Society
Abstract: The one-dimensional bulk mixed-layer model of Niiler (1975) is extended to two (or three) dimensions to take account of horizontal variation in wind stress on mixed-layer dynamics. Both surface stirring (Kraus and Turner, ...
A Model of Wind- and Buoyancy-Driven Ocean Circulation
Publisher: American Meteorological Society
Abstract: A layered model of steady geostrophic ocean circulation driven by wind stress and buoyancy flux at the surface is derived. Potential vorticity, or thickness, of the two near-surface layers is driven by Ekman pumping and ...
Equations of Motion Using Thermodynamic Coordinates
Publisher: American Meteorological Society
Abstract: The forms of the primitive equations of motion and continuity are obtained when an arbitrary thermodynamic state variable=mrestricted only to be vertically monotonic=mis used as the vertical coordinate. Natural generalizations ...
An Effect of the Thermobaric Nonlinearity of the Equation of State: A Mechanism for Sustaining Solitary Rossby Waves
Publisher: American Meteorological Society
Abstract: The thermobaric nonlinearity in the equation of state for seawater density?namely, the dependence of thermal expansibility on pressure?coupled with spatial variation of the oceanic temperature?salinity (??s) relation ...
An Improved Bound for the Complex Phase Speed of Baroclinic Instability
Publisher: American Meteorological Society
Abstract: An improved bound is obtained for the radius of the semicircle in the complex plane containing the complex phase speed of baroclinically unstable plane wave disturbances. In the limit of long waves, this bound contains a ...
The Dissipation of Fluctuating Tracer Variances
Publisher: American Meteorological Society
Abstract: The evolution of the covariance of two tracers involves a quantity called codissipation, proportional to the covariance of the gradients of the two tracers, and analogous to the dissipation of tracer variance. The evolution ...
The Materiality and Neutrality of Neutral Density and Orthobaric Density
Publisher: American Meteorological Society
Abstract: The materiality and neutrality of neutral density and several forms of orthobaric density are calculated and compared using a simple idealization of the warm-sphere water mass properties of the Atlantic Ocean. Materiality ...
Microstructure Fluxes across Density Surfaces
Publisher: American Meteorological Society
Abstract: When averaging the equations of motion, thermodynamics, and scalar conservation over turbulent fluctuations, we perform the process in several stages. First, an average is taken over the microscopic scales of turbulence, ...
Spatial Fluctuations North of the Hawaiian Ridge
Publisher: American Meteorological Society
Abstract: A closely spaced hydrographic section from Oabu, Hawaii to 28°N, 152°W and then north along 152°W shows strong eddy or current features with dynamic height signatures of about 30 dyn cm across 150 km and associated geostrophic ...