|
Dynamic Potential Vorticity Initialization and the Diagnosis of Mesoscale Motion
|
ABSTRACT
A new method for diagnosing the balanced three-dimensional velocity from a given density field in mesoscale oceanic flows is described. The method is referred to as dynamic potential vorticity initialization (PVI) and is based on the idea of letting the inertia-gravity waves produced by the initially imbalanced mass density and velocity fields develop and evolve in time while the balanced components of these fields adjust during the diagnostic period to a prescribed initial potential vorticity (PV) field. Technically this is achieved first by calculating the prescribed PV field from ...
Related newspaper, magazine, and trade journal articles from HighBeam Research
(Including press releases, facts, information, and biographies)
|
|
The influence of mesoscale eddies on coarsely resolved density: An examination of subgrid-scale parameterization
Magazine article from: Journal of Physical Oceanography
; ...influence of eddy fluxes on the zonal-mean density field was evaluated. Results show that eddy-fl...effect of mesoscale eddies on the mean density field is often hypothesized to take an advective...divergence as a function of the resolved density field. The authors computed optimal ...
|
|
Experimental and computational methods for understanding pharmaceutical flows, part II: Large-scale production equipment
Magazine article from: Pharmaceutical Technology Europe
; ...The experimental and computation velocity fields in this region are shown for a Reynolds...the experimental and computational velocity fields was very good. An S-shaped flow moves...near the top right corner of both velocity fields, thereby providing an indication of...
|
|
|
Balanced ocean-data assimilation near the equator
Magazine article from: Journal of Physical Oceanography
; ...observations are used for updating only the density field, is compared to a scheme where updates of density field and zonal velocities are related by...updating variables that change the density field, not the velocity field. This is in...
|
|
Calculating Lagrangian trajectories using time-dependent velocity fields
Magazine article from: Journal of Atmospheric and Oceanic Technology
; ...calculated using the three-dimensional velocity fields from the GCMs and essentially represent...and Raynaud 1997). For stationary velocity fields, it was shown by Blanke and Raynaud...the case of sampled time-dependent velocity fields, the above can also be applied by...
|
|
|
A Modeling Study of the Climatological Current Field and the Trajectories of Upwelled Particles in the East Australian Current
Magazine article from: Journal of Physical Oceanography
; ...Current separation point. Modeled velocity fields compare favorably with observed velocity...nature of the typical three-dimensional velocity fields associated with the climatological...investigate the three-dimensional velocity fields in the Smoky Cape region. The model...
|
|
|
Particle trajectories in an Indian Ocean model and sensitivity to seasonal forcing
Magazine article from: Journal of Physical Oceanography
; ...the layer by archived model velocity fields (1/3 deg X 1/3 deg resolution) for a period of 50 years. The velocity fields are the result of forcing the...seasonality removed from the velocity fields directly (taking the mean in...
|
|
Mass Conservation and the Anelastic Approximation
Magazine article from: Monthly Weather Review
; ...function proportional to the base-state density field with arbitrary amplitude. This ambiguity...and p^sub s^(z) is a reference dryair density field that is only a function of height z...the domain integration of the total density field is constant and hence that the integral...
|
|
|
A model of tidal rectification by potential vorticity mixing. Part II: Frontal regime
Magazine article from: Journal of Physical Oceanography
; ...homogeneous model to include a front, the density field of which is specified. Since the alongisobath...the frontal zone, the fixation of the density field has limited the prognostic utility...stronger than in the case when the density field is prescribed from climatic data. This...
|
|
Potential vorticity inversion for tropical cyclones using the asymmetric balance theory
Magazine article from: Journal of the Atmospheric Sciences
; ...the radial, tangential, and vertical velocity fields diagnosed using the AB theory are...solutions. Presenting the results of the velocity fields in the moving coordinate system and...solution. A comparison between the velocity fields of the PE model and the diagnostically...
|
|
Motion analysis in the hemicochlea
Magazine article from: Biophysical Journal
; ...techniques are often used to estimate velocity fields to represent motion in successive...Lucas and Kanade (1981) to compute the velocity fields that represent the motion in successive...gradient-based methods estimate two-dimensional velocity fields by using spatio-temporal ...
|
For more facts and information,
see all results
Find more facts and information related to the article "Dynamic Potential Vorticity Initialization and ..."
