source: LMDZ5/trunk/libf/dyn3d_common/tourpot.F90 @ 2367

Last change on this file since 2367 was 2336, checked in by dcugnet, 9 years ago
  • Add parallel capability for ce0l.
  • Small bug in grid_noro fixed (smoothed topography was used instead of unsmoothed one for geopotential computation at north pole).
  • Removed average of mass at poles in etat0dyn_netcdf after start_init_dyn => different results in the zoomed grid case.
  • ok_etat0=n and ok_limit=y combination now works fine (if no initial state is needed, but only limit.nc file). This required:
    • to move grid_noro0 and start_init_noro0 subroutines from etat0dyn_netcdf.F90 to limit_netcdf.F90
    • to create init_ssrf_m.F90 file, so that sub-surfaces can be initialized from limit_netcdf.F90 without any etat0*_netcdf routines call).
  • Simplified somehow the corresponding code, in particular: 1) removed obsolete flags "oldice". 2) removed flag "ibar": barycentric interpolation is used everywhere (except in start_init_subsurf, still calling grille_m - to be changed soon). 3) removed useless CPP_PHY precompilation directives, considering the possibility to run ce0l without physics is useless (ce0l is dedicated to Earth physics).
  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 1.6 KB
RevLine 
[2336]1SUBROUTINE tourpot ( vcov, ucov, massebxy, vorpot )
[524]2!
[2336]3!-------------------------------------------------------------------------------
4! Authors: P. Le Van.
5!-------------------------------------------------------------------------------
6! Purpose: Compute potential vorticity.
7  IMPLICIT NONE
8  include "dimensions.h"
9  include "paramet.h"
10  include "comgeom.h"
11  include "logic.h"
12!===============================================================================
13! Arguments:
14  REAL, INTENT(IN)  :: vcov    (ip1jm,  llm)
15  REAL, INTENT(IN)  :: ucov    (ip1jmp1,llm)
16  REAL, INTENT(IN)  :: massebxy(ip1jm,  llm)
17  REAL, INTENT(OUT) :: vorpot  (ip1jm,  llm)
18!===============================================================================
19! Method used:
20!   vorpot = ( Filtre( d(vcov)/dx - d(ucov)/dy ) + fext ) /psbarxy
21!===============================================================================
22! Local variables:
23  INTEGER :: l, ij
24  REAL    :: rot(ip1jm,llm)
25!===============================================================================
[524]26
[2336]27!--- Wind vorticity ; correction: rot(iip1,j,l) = rot(1,j,l)
28  DO l=1,llm
29    DO ij=1,ip1jm-1
30      rot(ij,l)=vcov(ij+1,l)-vcov(ij,l)+ucov(ij+iip1,l)-ucov(ij,l)
31    END DO
32    DO ij=iip1,ip1jm,iip1; rot(ij,l)=rot(ij-iim,l); END DO
33  END DO
[524]34
[2336]35!--- Filter
36  CALL  filtreg(rot,jjm,llm,2,1,.FALSE.,1)
[524]37
[2336]38!--- Potential vorticity ; correction: rot(iip1,j,l) = rot(1,j,l)
39  DO l=1,llm
40    DO ij=1,ip1jm-1
41      vorpot(ij,l)=(rot(ij,l)+fext(ij))/massebxy(ij,l)
42    END DO
43    DO ij=iip1,ip1jm,iip1; vorpot(ij,l)=vorpot(ij-iim,l); END DO
44  END DO
[524]45
[2336]46END SUBROUTINE tourpot
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