! $Id: splaerosol_optic_rrtm.F90 2644 2016-10-02 16:55:08Z oboucher $

SUBROUTINE splaerosol_optic_rrtm(ok_alw, pplay, paprs, t_seri, rhcl, &
        tr_seri, mass_solu_aero, mass_solu_aero_pi, &
        tau_aero, piz_aero, cg_aero, &
        tausum_aero, tau3d_aero)

  ! This routine will :
  ! 1) recevie the aerosols(already read and interpolated) corresponding to flag_aerosol
  ! 2) calculate the optical properties for the aerosols

  USE dimphy
  USE aero_mod
  USE infotrac_phy, ONLY: nbtr, nqtot, tracers
  USE lmdz_yomcst, ONLY: RD, RG
  USE lmdz_clesphys

  IMPLICIT NONE

  ! Input arguments
  !****************************************************************************************
  LOGICAL, INTENT(IN) :: ok_alw                      ! Apply aerosol LW effect or not
  REAL, DIMENSION(klon, klev), INTENT(IN) :: pplay
  REAL, DIMENSION(klon, klev + 1), INTENT(IN) :: paprs
  REAL, DIMENSION(klon, klev), INTENT(IN) :: t_seri
  REAL, DIMENSION(klon, klev), INTENT(IN) :: rhcl   ! humidite relative ciel clair
  REAL, DIMENSION(klon, klev, nbtr), INTENT(IN) :: tr_seri ! concentration tracer

  ! Output arguments
  !****************************************************************************************
  REAL, DIMENSION(klon, klev), INTENT(OUT) :: mass_solu_aero    ! Total mass for all soluble aerosols
  REAL, DIMENSION(klon, klev), INTENT(OUT) :: mass_solu_aero_pi !     -"-     preindustrial values
  REAL, DIMENSION(klon, klev, 2, NSW), INTENT(OUT) :: tau_aero    ! Aerosol optical thickness
  REAL, DIMENSION(klon, klev, 2, NSW), INTENT(OUT) :: piz_aero    ! Single scattering albedo aerosol
  REAL, DIMENSION(klon, klev, 2, NSW), INTENT(OUT) :: cg_aero     ! asymmetry parameter aerosol
  REAL, DIMENSION(klon, nwave, naero_tot), INTENT(OUT) :: tausum_aero
  REAL, DIMENSION(klon, klev, nwave, naero_tot), INTENT(OUT) :: tau3d_aero

  INTEGER i, k, iq, itr
  REAL, DIMENSION(klon, klev) :: zdm, zdh
  REAL zrho, pdel

  ! Calculate the total mass of all soluble accumulation mode aerosols
  ! to be revisited for AR6

  mass_solu_aero(:, :) = 0.0
  mass_solu_aero_pi(:, :) = 0.0

  itr = 0
  DO iq = 1, nqtot
    IF(.NOT.tracers(iq)%isInPhysics) CYCLE
    itr = itr + 1
    IF(tracers(iq)%name/='FINE') THEN
      mass_solu_aero(:, :) = tr_seri(:, :, itr)
      mass_solu_aero_pi(:, :) = tr_seri(:, :, itr)
    ENDIF
  ENDDO

  ! Calculate layer thickness
  DO k = 1, klev
    DO i = 1, klon
      pdel = paprs(i, k) - paprs(i, k + 1)
      zrho = pplay(i, k) / t_seri(i, k) / RD             ! kg/m3
      zdh(i, k) = pdel / (RG * zrho)                    ! m
      zdm(i, k) = pdel / RG                           ! kg/m2
    ENDDO
  ENDDO

  !--new aerosol properties
  ! aeropt_6bands for rrtm
  CALL splaeropt_6bands_rrtm(&
          zdm, tr_seri, rhcl, &
          tau_aero, piz_aero, cg_aero)

  ! aeropt_5wv only for validation and diagnostics
  CALL splaeropt_5wv_rrtm(&
          zdm, zdh, tr_seri, rhcl, &
          tausum_aero, tau3d_aero)

  ! LW optical properties for tropospheric aerosols
  CALL splaeropt_lw_rrtm(ok_alw, zdm, tr_seri)

END SUBROUTINE splaerosol_optic_rrtm