source: LMDZ4/trunk/libf/phylmd/surf_seaice_mod.F90 @ 907

!
! $Header$
!
MODULE surf_seaice_mod

  USE dimphy
  USE surface_data, ONLY     : ocean
  USE ocean_slab_mod, ONLY   : ocean_slab_ice
  USE ocean_forced_mod, ONLY : ocean_forced_ice
  USE ocean_cpl_mod, ONLY    : ocean_cpl_ice
  IMPLICIT NONE

CONTAINS
!
!****************************************************************************************
!
  SUBROUTINE surf_seaice( & 
       rlon, rlat, swnet, lwnet, alb1, fder, &
       itime, dtime, jour, knon, knindex, &
       debut, lafin, &
       tsurf, p1lay, tq_cdrag, precip_rain, precip_snow, temp_air, spechum, &
       petAcoef, peqAcoef, petBcoef, peqBcoef, &
       ps, u1_lay, v1_lay, rugoro, pctsrf, &
       snow, qsurf, qsol, agesno, tsoil, &
       z0_new, alb1_new, alb2_new, evap, fluxsens, fluxlat, &
       tsurf_new, dflux_s, dflux_l, pctsrf_sic)
!
! This subroutine will make a call to ocean_XXX_ice according to the ocean mode (force, 
! slab or couple). The calculation of rugosity for the sea-ice surface is also done
! in here because it is the same calculation for the different modes of ocean.
!
    INCLUDE "indicesol.h"
    INCLUDE "dimsoil.h"

! Input arguments
!****************************************************************************************
    INTEGER, INTENT(IN)                      :: itime, jour, knon
    INTEGER, DIMENSION(klon), INTENT(IN)     :: knindex
    LOGICAL, INTENT(IN)                      :: debut, lafin
    REAL, INTENT(IN)                         :: dtime
    REAL, DIMENSION(klon), INTENT(IN)        :: rlon, rlat
    REAL, DIMENSION(klon), INTENT(IN)        :: swnet  ! net shortwave radiation at surface  
    REAL, DIMENSION(klon), INTENT(IN)        :: lwnet  ! net longwave radiation at surface  
    REAL, DIMENSION(klon), INTENT(IN)        :: alb1   ! albedo in visible SW interval
    REAL, DIMENSION(klon), INTENT(IN)        :: fder
    REAL, DIMENSION(klon), INTENT(IN)        :: tsurf
    REAL, DIMENSION(klon), INTENT(IN)        :: p1lay
    REAL, DIMENSION(klon), INTENT(IN)        :: tq_cdrag
    REAL, DIMENSION(klon), INTENT(IN)        :: precip_rain, precip_snow
    REAL, DIMENSION(klon), INTENT(IN)        :: temp_air, spechum
    REAL, DIMENSION(klon), INTENT(IN)        :: petAcoef, peqAcoef
    REAL, DIMENSION(klon), INTENT(IN)        :: petBcoef, peqBcoef
    REAL, DIMENSION(klon), INTENT(IN)        :: ps
    REAL, DIMENSION(klon), INTENT(IN)        :: u1_lay, v1_lay
    REAL, DIMENSION(klon), INTENT(IN)        :: rugoro
    REAL, DIMENSION(klon,nbsrf), INTENT(IN)  :: pctsrf

! In/Output arguments
!****************************************************************************************
    REAL, DIMENSION(klon), INTENT(INOUT)          :: snow, qsurf, qsol
    REAL, DIMENSION(klon), INTENT(INOUT)          :: agesno
    REAL, DIMENSION(klon, nsoilmx), INTENT(INOUT) :: tsoil

! Output arguments
!****************************************************************************************
    REAL, DIMENSION(klon), INTENT(OUT)       :: z0_new
    REAL, DIMENSION(klon), INTENT(OUT)       :: alb1_new  ! new albedo in visible SW interval
    REAL, DIMENSION(klon), INTENT(OUT)       :: alb2_new  ! new albedo in near IR interval
    REAL, DIMENSION(klon), INTENT(OUT)       :: evap, fluxsens, fluxlat
    REAL, DIMENSION(klon), INTENT(OUT)       :: tsurf_new
    REAL, DIMENSION(klon), INTENT(OUT)       :: dflux_s, dflux_l      
    REAL, DIMENSION(klon), INTENT(OUT)       :: pctsrf_sic

! Local arguments
!****************************************************************************************
    REAL, DIMENSION(klon)  :: radsol
!
! End definitions
!****************************************************************************************


!****************************************************************************************
! Calculate total net radiance at surface
!
!****************************************************************************************
    radsol(:) = 0.0
    radsol(1:knon) = swnet(1:knon) + lwnet(1:knon)

!****************************************************************************************
! Switch according to type of ocean (couple, slab or forced)
!
!****************************************************************************************
    SELECT CASE(ocean)
    CASE('couple')
       CALL ocean_cpl_ice( &
          rlon, rlat, swnet, lwnet, alb1, & 
          fder, & 
          itime, dtime, knon, knindex, &
          lafin,&
          p1lay, tq_cdrag, precip_rain, precip_snow, temp_air, spechum,&
          petAcoef, peqAcoef, petBcoef, peqBcoef, &
          ps, u1_lay, v1_lay, pctsrf, &
          radsol, snow, qsurf, &
          alb1_new, alb2_new, evap, fluxsens, fluxlat, &
          tsurf_new, dflux_s, dflux_l, pctsrf_sic)

    CASE('slab')
       CALL ocean_slab_ice( & 
          itime, dtime, jour, knon, knindex, &
          debut, &
          tsurf, p1lay, tq_cdrag, precip_rain, precip_snow, temp_air, spechum,&
          petAcoef, peqAcoef, petBcoef, peqBcoef, &
          ps, u1_lay, v1_lay, &
          radsol, snow, qsurf, qsol, agesno, tsoil, &
          alb1_new, alb2_new, evap, fluxsens, fluxlat, &
          tsurf_new, dflux_s, dflux_l, pctsrf_sic)
    
    CASE('force')
       CALL ocean_forced_ice(itime, dtime, jour, knon, knindex, &
          debut, &
          tsurf, p1lay, tq_cdrag, precip_rain, precip_snow, temp_air, spechum,&
          petAcoef, peqAcoef, petBcoef, peqBcoef, &
          ps, u1_lay, v1_lay, &
          radsol, snow, qsol, agesno, tsoil, &
          qsurf, alb1_new, alb2_new, evap, fluxsens, fluxlat, &
          tsurf_new, dflux_s, dflux_l, pctsrf_sic)
    END SELECT

!****************************************************************************************
! Calculate rugosity
!
!****************************************************************************************
    z0_new = 0.002
    z0_new = SQRT(z0_new**2+rugoro**2)


  END SUBROUTINE surf_seaice
!
!****************************************************************************************
!
END MODULE surf_seaice_mod