Joint Centre for Mesoscale Meteorology (JCMM)


JCMM Internal Report No.82: 

Programs for PV inversion and modification

M Demirtas

The aim of this documentation is to help users to run the potential vorticity inversion program and associated programs.  Guidance is outlined to describe and to use various programs for the potential vorticity (PV) inversion and modifications.  Background on the data sources, model diagnostics (MDIAG) programs and the display system is highlighted in the first section.  A brief summary of the basics of the main PV inversion program is given in the second section.  Using the programs for simple PV inversion is described in the third section.  If a user wants to modify PV distribution first and then make the PV inversion, the fourth section is dedicated for this purpose.  After having the results of the programs, the next step is to display them.  The fifth section provides information about displaying results on a pressure surface, on an isentropic surface or on a PV surface.  The Appendices (A, B and C) give lists of programs, detailed documents on the parameters list and a copy of a command file (MDPVINRE.COM).

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