get_z0n.F90

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!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 get_z0_n (DGU, &
                           hprogram,ki,pz0,pz0h)
!     #########################################
!
!!****  *GET_Z0_n* - routine to get roughness lengths
!!
!!    PURPOSE
!!    -------
!!
!!**  METHOD
!!    ------
!!
!!    EXTERNAL
!!    --------
!!
!!
!!    IMPLICIT ARGUMENTS
!!    ------------------
!!
!!    REFERENCE
!!    ---------
!!
!!
!!    AUTHOR
!!    ------
!!      P. Le Moigne *Meteo France*
!!
!!    MODIFICATIONS
!!    -------------
!!      Original    02/2006
!-------------------------------------------------------------------------------
!
!*       0.    DECLARATIONS
!              ------------
!
!
USE modd_diag_surf_atm_n, ONLY : diag_surf_atm_t
!
USE modi_get_luout
USE modd_surf_par,        ONLY   : xundef
!
!
!
USE yomhook   ,ONLY : lhook,   dr_hook
USE parkind1  ,ONLY : jprb
!
IMPLICIT NONE
!
!*       0.1   Declarations of arguments
!              -------------------------
!
!
TYPE(diag_surf_atm_t), INTENT(INOUT) :: dgu
!
 CHARACTER(LEN=6),     INTENT(IN)     :: hprogram
INTEGER,              INTENT(IN)     :: ki      ! Number of points
REAL, DIMENSION(KI),  INTENT(OUT)    :: pz0     ! roughness length for momentum (m)
REAL, DIMENSION(KI),  INTENT(OUT)    :: pz0h    ! roughness length for heat     (m)
!
!
!*       0.2   Declarations of local variables
!              -------------------------------
!
INTEGER :: iluout
REAL(KIND=JPRB) :: zhook_handle
!
!-------------------------------------------------------------------------------
IF (lhook) CALL dr_hook('GET_Z0_N',0,zhook_handle)
 CALL get_luout(hprogram,iluout)
!-------------------------------------------------------------------------------
!
IF (dgu%LCOEF)      THEN 
        pz0      = dgu%XAVG_Z0      
        pz0h     = dgu%XAVG_Z0H
   ELSE 
        pz0      = xundef      
        pz0h     = xundef
ENDIF           
IF (lhook) CALL dr_hook('GET_Z0_N',1,zhook_handle)
!
!==============================================================================
!
END SUBROUTINE get_z0_n