latlon_gridtype_gauss.F90

Go to the documentation of this file.

!SFX_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
!SFX_LIC This is part of the SURFEX software governed by the CeCILL-C licence
!SFX_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
!SFX_LIC for details. version 1.
!#########################################################################
SUBROUTINE latlon_gridtype_gauss(KGRID_PAR,KL,PGRID_PAR,PLAT,PLON,PMESH_SIZE,PDIR)
!#########################################################################
!
!!****  *LATLON_GRIDTYPE_GAUSS* - routine to get the horizontal geographic fields
!!
!!    PURPOSE
!!    -------
!!
!!**  METHOD
!!    ------
!!
!!    EXTERNAL
!!    --------
!!
!!    IMPLICIT ARGUMENTS
!!    ------------------
!!
!!    REFERENCE
!!    ---------
!!
!!    AUTHOR
!!    ------
!!      V. Masson   *Meteo France*
!!
!!    MODIFICATIONS
!!    -------------
!!      Original    01/2004 
!!      F. Taillefer   11/2007  correct estimation of the grid meshes
!
!-------------------------------------------------------------------------------
!
!*       0.    DECLARATIONS
!              ------------
!
USE mode_gridtype_gauss
!
USE modd_csts, ONLY : xradius, xpi
!
!
USE yomhook   ,ONLY : lhook,   dr_hook
USE parkind1  ,ONLY : jprb
!
IMPLICIT NONE
!
!*       0.1   Declarations of arguments
!              -------------------------
!
INTEGER,                    INTENT(IN)  :: kgrid_par  ! size of PGRID_PAR
INTEGER,                    INTENT(IN)  :: kl         ! number of points
REAL, DIMENSION(KGRID_PAR), INTENT(IN)  :: pgrid_par  ! parameters defining this grid
REAL, DIMENSION(KL),        INTENT(OUT) :: plat       ! latitude  (degrees)
REAL, DIMENSION(KL),        INTENT(OUT) :: plon       ! longitude (degrees)
REAL, DIMENSION(KL),        INTENT(OUT) :: pmesh_size ! mesh size (m2)
REAL, DIMENSION(KL),        INTENT(OUT) :: pdir ! direction of main grid Y axis (deg. from N, clockwise)
REAL(KIND=JPRB) :: zhook_handle
!
!*       0.2   Declarations of local variables
!              -------------------------------
!
!---------------------------------------------------------------------------
!
!*       1.    get grid component
!              ------------------
!
IF (lhook) CALL dr_hook('LATLON_GRIDTYPE_GAUSS',0,zhook_handle)
 CALL get_gridtype_gauss(pgrid_par,plat=plat,plon=plon,pmesh_size=pmesh_size)
!
!-----------------------------------------------------------------------------
!
!*       2.    Direction of Y axis (from North) for each grid point (degrees)
!              ----------------------------------------------------
!
!* the following formulae is given for clockwise angles.
!
!A COMPLETER
!
pdir(:) = 0.
IF (lhook) CALL dr_hook('LATLON_GRIDTYPE_GAUSS',1,zhook_handle)
!
!WHERE (PDIR(:) <0.)    PDIR = PDIR + 360.
!WHERE (PDIR(:) >=360.) PDIR = PDIR - 360.
!
!---------------------------------------------------------------------------
!
END SUBROUTINE latlon_gridtype_gauss