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!Environment Canada - Atmospheric Science and Technology License/Disclaimer, 
!                     version 3; Last Modified: May 7, 2008.
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***fonction sfopop - resout l'eqn de Poisson pour la pression
*

      function sfopop(t0, tf2, p0),1
*
#include "impnone.cdk"
*
      real sfopop, t0, tf2, p0
*
*author
*      N. Brunet (sept 2000)
*
*object
*      solve Poisson equation for pressure
*
*arguments
*
*      t0  - temperature (K) at a given pressure p0
*      p0  - pressure (pa)
*      tf2 - temperature (K) at the target level
*
*      result is in pa
*
*IMPLICITES
#include "consphy.cdk"
*MODULES
      EXTERNAL INCTPHY
*
**
*--------------------------------------------------------------------
#include "dintern.cdk"
#include "fintern.cdk"
*--------------------------------------------------------------------
#include "initcph.cdk"
*
      sfopop = fopoip(t0, tf2, p0)
*
      return
      CONTAINS
#include "fintern90.cdk"
      end