Boundary effects in potential vorticity dynamics

Journal of the Atmospheric Sciences;  April 15, 2003 ;     700+ words ......compactly in terms of potential vorticity dynamics. Since potential...boundary conditions for potential vorticity dynamics are inhomogeneous...complicates considerations of potential vorticity dynamics when boundary...

Potential Vorticity Structure of Simulated Hurricanes

Journal of the Atmospheric Sciences;  January 1, 2006 ;     700+ words ......thermodynamics, and bulk microphysics. The potential vorticity principle for this nonhydrostatic...appropriate generalization of the dry potential vorticity is found to be P = ρ^sup -1...value of P can reach several hundred potential vorticity (PV) units. Sensitivity ...

Potential vorticity in a moist atmosphere

Journal of the Atmospheric Sciences;  November 1, 2001 ;     700+ words ...ABSTRACT The potential vorticity principle for a nonhydrostatic...the well-known (dry) Ertel potential vorticity is found to be P = p-'(211...to the usual (dry) Ertel potential vorticity. For balanced flows, there...

A generalized form of lait's modified potential vorticity

Journal of the Atmospheric Sciences;  September 1, 2003 ;     700+ words ...ABSTRACT Ertel's potential vorticity P is in widespread use as...Lait proposed a modified potential vorticity [Pi]^sub L^, where a physically...This generalized modified potential vorticity [Pi]^sub g^ possesses the...

Zonal Momentum Balance, Potential Vorticity Dynamics, and Mass Fluxes on...

Journal of the Atmospheric Sciences;  June 1, 2005 ;     700+ words ......the zonal momentum balance and in potential vorticity dynamics on isentropes that intersect...balance of zonal momentum and of potential vorticity on isentropes, including the near-surfa...vertically, the mean zonal momentum or potential vorticity balance leads to a balance ...

The modification of long planetary waves by homogeneous potential...

Journal of Physical Oceanography;  March 1, 1999 ;     700+ words ......the well-known homogenization of potential vorticity in intermediate density layers and...significantly elevated meridional potential vorticity gradients near the surface and somewhat...which the middle layer has zero potential vorticity gradient and is sandwiched between...

The equilibration of short Charney waves: Implications for potential...

Journal of the Atmospheric Sciences;  November 15, 2001 ;     700+ words ......vertical distribution of the interior potential vorticity gradients in the extratropical troposphere...that when the interior gradients of potential vorticity are small compared to the delta...produces a concentration of the potential vorticity gradients at heights of the order...

The relation between Beltrami's material vorticity and Rossby-Ertel's...

Journal of the Atmospheric Sciences;  September 1, 2001 ;     700+ words ......between the scalar Rossby-Ertel's potential vorticity (PV) for a field s, and the component...use and significance of isentropic potential vorticity maps. Quart. J. Roy. Meteor. Soc...and M. S. Tatarskaya, 1987: The potential vorticity concept in meteorology: A review...

Entry, flux, and exit of potential vorticity in ocean circulation

Journal of Physical Oceanography;  March 1, 2001 ;     513 words ...ABSTRACT The flux form of the potential vorticity (PV) equation is employed to derive...S., and C. Schar, 1993: Flux of potential vorticity substance: A simple derivation and...evolution of vorticity [Reference] and potential vorticity in the presence of diabatic heating...

Possible Sources Driving the Potential Vorticity Structure and Long-Wave...

Journal of Physical Oceanography;  May 1, 2006 ;     700+ words ......current for long-wave instability by transforming the current's potential vorticity. A constant wind can likewise modify the potential vorticity. The resulting potential vorticity anomaly is always negative for both upwelling and downwelling...

The role of potential vorticity generation in tropical cyclone rainbands

Journal of the Atmospheric Sciences;  May 1, 1999 ;     700+ words ...ABSTRACT The implied heating and potential vorticity generation in tropical cyclone rainbands...motion profiles. High levels of potential vorticity generation are found in the stratiform...represent a significant source of potential vorticity for the system as a whole and may...

On Potential Vorticity Flux Vectors

Journal of the Atmospheric Sciences;  December 1, 2003 ;     700+ words ......considerations indicate that a generalized potential vorticity in terms of the gradient of an arbitrary...scalar function requires that the potential vorticity flux vector contain a contribution...gradient force. It is shown that such a potential vorticity flux vector has a simpler ...

Constant potential vorticity hydraulically controlled flow--complexities...

Journal of Physical Oceanography;  January 1, 2003 ;     700+ words ...Constant Potential Vorticity Hydraulically Controlled...fluid possesses constant potential vorticity. These are models of an internal...reservoir. Rotation necessitates potential vorticity conservation. The first formulation...

Relationships between Tracer Ages and Potential Vorticity in Unsteady...

Journal of Physical Oceanography;  November 1, 2005 ;     700+ words ......ages and between tracer age and potential vorticity are examined by simulating barotropic...temporal anomalies of tracer age and potential vorticity throughout a significant fraction...anticorrelations between ideal age and potential vorticity in the subtropical gyre and midbasin...

Nonconservation of Ertel Potential Vorticity in Hydrogen Atmospheres

Journal of the Atmospheric Sciences;  August 1, 2004 ;     700+ words ......ratio is spatially variable, Ertel's potential vorticity is not conserved, even in the adiabatic...generalization of quasigeostrophic potential vorticity is still conserved, and that the...this regime. The Ertel isentropic potential vorticity is not conserved, even to leading...