prep_sbl.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 prep_sbl (KDIM, SB)
!     #################################################################################
!
!!****  *PREP_SBL* - prepares FLAKE SBL fields
!!
!!    PURPOSE
!!    -------
!
!!**  METHOD
!!    ------
!!
!!    REFERENCE
!!    ---------
!!      
!!
!!    AUTHOR
!!    ------
!!     V. Masson 
!!
!!    MODIFICATIONS
!!    -------------
!!      Original    07/2006
!!      S. Riette   06/2009 XT, XU, XQ, XTKE are set to XUNDEF
!!                          No more argument needed
!!      E. Martin   01/2012 XUNDEF fields are no more written in PREP file
!!------------------------------------------------------------------
!
USE modd_canopy_n, ONLY : canopy_t
!
USE yomhook   ,ONLY : lhook,   dr_hook
USE parkind1  ,ONLY : jprb
!
IMPLICIT NONE
!
!*      0.1    declarations of arguments
!
!
!*      0.2    declarations of local variables
!
INTEGER, INTENT(IN) :: KDIM
TYPE(canopy_t), INTENT(INOUT) :: SB
!
INTEGER :: JLAYER
!
REAL, DIMENSION(:,:), ALLOCATABLE :: ZZF ! altitudes at half levels
REAL(KIND=JPRB) :: ZHOOK_HANDLE
!
!-------------------------------------------------------------------------------------
!

!
!*      1.    number of levels (MUST be at least equal to 2)
!             ----------------
!
IF (lhook) CALL dr_hook('PREP_SBL',0,zhook_handle)
sb%NLVL = 6
!
!*      2.    height of half levels (where turbulent fluxes will be)
!             ---------------------
!
!* Warning :   ZZF(:,1)   MUST BE ZERO
ALLOCATE(zzf(kdim,sb%NLVL))
zzf(:,1) = 0.
zzf(:,2) = 1.
zzf(:,3) = 3.
zzf(:,4) = 5.
zzf(:,5) = 8.
zzf(:,6) = 12.

ALLOCATE(sb%XZ(kdim,sb%NLVL))
DO jlayer=1,sb%NLVL-1
  sb%XZ(:,jlayer) = 0.5 * (zzf(:,jlayer)+zzf(:,jlayer+1))
END DO
sb%XZ(:,sb%NLVL) = 1.5 * zzf(:,sb%NLVL) - 0.5 * zzf(:,sb%NLVL-1)
!
DEALLOCATE(zzf)
!
IF (lhook) CALL dr_hook('PREP_SBL',1,zhook_handle)
!
!-------------------------------------------------------------------------------------
!
END SUBROUTINE prep_sbl