On potential vorticity flux vectors

Peter R. Bannon, Jürg Schmidli, Christoph Schär

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Dynamical, rather than kinematical, 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 due to gravity and the pressure gradient force. It is shown that such a potential vorticity flux vector has a simpler definition in terms of the gradient of the kinetic energy rather than that of a Bernoulli function. This result is valid for multicomponent fluids. Flux vectors for a salty ocean and a moist atmosphere with hydrometeors are presented.

Original languageEnglish (US)
Pages (from-to)2917-2921
Number of pages5
JournalJournal of the Atmospheric Sciences
Issue number23
StatePublished - Dec 1 2003

All Science Journal Classification (ASJC) codes

  • Atmospheric Science


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