! $Id: splaeropt_5wv_rrtm.F90 2644 2016-10-02 16:55:08Z oboucher $ SUBROUTINE SPLAEROPT_5WV_RRTM(& zdm, zdh, tr_seri, RHcl, & tausum, tau) USE DIMPHY USE aero_mod USE infotrac_phy, ONLY: nqtot, nbtr, tracers USE phys_local_var_mod, ONLY: od550aer, od865aer, ec550aer, od550lt1aer ! Olivier Boucher Jan 2017 ! Based on Mie routines on ciclad CMIP6 IMPLICIT NONE ! Input arguments: REAL, DIMENSION(klon, klev), INTENT(IN) :: zdh !--m REAL, DIMENSION(klon, klev), INTENT(IN) :: zdm !--kg/m2 REAL, DIMENSION(klon, klev), INTENT(IN) :: RHcl ! humidite relative ciel clair REAL, DIMENSION(klon, klev, nbtr), INTENT(IN) :: tr_seri ! Output arguments: REAL, DIMENSION(klon, nwave, naero_tot), INTENT(OUT) :: tausum REAL, DIMENSION(klon, klev, nwave, naero_tot), INTENT(OUT) :: tau ! Local INTEGER, PARAMETER :: las = nwave_sw LOGICAL :: soluble INTEGER :: i, k, m, iq, itr, irh, aerindex INTEGER :: spsol, spinsol, la INTEGER :: RH_num(klon, klev) INTEGER, PARAMETER :: la443 = 1 INTEGER, PARAMETER :: la550 = 2 INTEGER, PARAMETER :: la670 = 3 INTEGER, PARAMETER :: la765 = 4 INTEGER, PARAMETER :: la865 = 5 INTEGER, PARAMETER :: nbre_RH = 12 INTEGER, PARAMETER :: naero_soluble = 2 INTEGER, PARAMETER :: naero_insoluble = 2 INTEGER, PARAMETER :: naero = naero_soluble + naero_insoluble REAL, PARAMETER :: RH_tab(nbre_RH) = (/0., 10., 20., 30., 40., 50., 60., 70., 80., 85., 90., 95./) REAL, PARAMETER :: RH_MAX = 95. REAL :: delta(klon, klev), rh(klon, klev) REAL :: tau_ae5wv_int ! Intermediate computation of epaisseur optique aerosol REAL :: zrho CHARACTER*20 modname ! Soluble components 1-accumulation mode soluble; 2- seasalt coarse REAL :: alpha_aers_5wv(nbre_RH, las, naero_soluble) ! Ext. coeff. ** m2/g ! Insoluble components 1- Dust: 2- BC; 3- POM REAL :: alpha_aeri_5wv(las, naero_insoluble) ! Ext. coeff. ** m2/g ! Proprietes optiques REAL :: fact_RH(nbre_RH) ! From here on we look at the optical parameters at 5 wavelengths: ! 443nm, 550, 670, 765 and 865 nm ! le 12 AVRIL 2006 DATA alpha_aers_5wv/ & ! accumulation mode (sulfate+2% bc) soluble 4.632, 4.632, 4.632, 4.632, 6.206, 6.827, 7.616, 8.716, 10.514, 12.025, 14.688, 21.539, & 3.981, 3.981, 3.981, 3.981, 5.346, 5.923, 6.662, 7.704, 9.437, 10.914, 13.562, 20.591, & 3.265, 3.265, 3.265, 3.265, 4.400, 4.909, 5.565, 6.500, 8.081, 9.449, 11.943, 18.791, & 2.761, 2.761, 2.761, 2.761, 3.731, 4.182, 4.767, 5.606, 7.041, 8.294, 10.610, 17.118, & 2.307, 2.307, 2.307, 2.307, 3.129, 3.522, 4.034, 4.774, 6.052, 7.180, 9.286, 15.340, & ! seasalt seasalt Coarse Soluble (CS) 0.576, 0.690, 0.738, 0.789, 0.855, 0.935, 1.046, 1.212, 1.512, 1.785, 2.258, 3.449, & 0.595, 0.713, 0.763, 0.814, 0.880, 0.963, 1.079, 1.248, 1.550, 1.826, 2.306, 3.507, & 0.617, 0.738, 0.789, 0.842, 0.911, 0.996, 1.113, 1.286, 1.592, 1.871, 2.369, 3.562, & 0.632, 0.755, 0.808, 0.862, 0.931, 1.018, 1.140, 1.316, 1.626, 1.909, 2.409, 3.622, & 0.645, 0.771, 0.825, 0.880, 0.951, 1.039, 1.164, 1.344, 1.661, 1.948, 2.455, 3.682 / DATA alpha_aeri_5wv/ & ! coarse dust insoluble 0.605, 0.611, 0.661, 0.714, 0.760, & ! super coarse insoluble 0.153, 0.156, 0.158, 0.157, 0.161 / ! Initialisations tausum(:, :, :) = 0. tau(:, :, :, :) = 0. modname = 'splaeropt_5wv_rrtm' IF (naero>naero_tot) THEN CALL abort_physic(modname, 'Too many aerosol types', 1) ENDIF DO irh = 1, nbre_RH - 1 fact_RH(irh) = 1. / (RH_tab(irh + 1) - RH_tab(irh)) ENDDO DO k = 1, klev DO i = 1, klon rh(i, k) = MIN(RHcl(i, k) * 100., RH_MAX) RH_num(i, k) = INT(rh(i, k) / 10. + 1.) IF (rh(i, k)>85.) RH_num(i, k) = 10 IF (rh(i, k)>90.) RH_num(i, k) = 11 delta(i, k) = (rh(i, k) - RH_tab(RH_num(i, k))) * fact_RH(RH_num(i, k)) ENDDO ENDDO itr = 0 DO iq = 1, nqtot IF(.NOT.tracers(iq)%isInPhysics) CYCLE itr = itr + 1 SELECT CASE(tracers(iq)%name) CASE('PREC'); CYCLE !--precursor CASE('FINE'); soluble = .TRUE.; spsol = 1; aerindex = 1 !--fine mode accumulation mode CASE('COSS'); soluble = .TRUE.; spsol = 2; aerindex = 2 !--coarse mode sea salt CASE('CODU'); soluble = .FALSE.; spinsol = 1; aerindex = 3 !--coarse mode dust CASE('SCDU'); soluble = .FALSE.; spinsol = 2; aerindex = 4 !--super coarse mode dust CASE DEFAULT; CALL abort_physic(modname, 'I cannot do aerosol optics for ' // tracers(iq)%name, 1) END SELECT DO la = 1, las !--only 550 and 865 nm are used IF (la/=la550.AND.la/=la865) CYCLE IF (soluble) THEN !--soluble aerosol with RH dependence DO k = 1, klev DO i = 1, klon tau_ae5wv_int = alpha_aers_5wv(RH_num(i, k), la, spsol) + DELTA(i, k) * & (alpha_aers_5wv(RH_num(i, k) + 1, la, spsol) - & alpha_aers_5wv(RH_num(i, k), la, spsol)) tau(i, k, la, aerindex) = tr_seri(i, k, itr) * zdm(i, k) * tau_ae5wv_int tausum(i, la, aerindex) = tausum(i, la, aerindex) + tau(i, k, la, aerindex) ENDDO ENDDO ELSE !--cases of insoluble aerosol DO k = 1, klev DO i = 1, klon tau_ae5wv_int = alpha_aeri_5wv(la, spinsol) tau(i, k, la, aerindex) = tr_seri(i, k, itr) * zdm(i, k) * tau_ae5wv_int tausum(i, la, aerindex) = tausum(i, la, aerindex) + tau(i, k, la, aerindex) ENDDO ENDDO ENDIF ENDDO ! Boucle sur les longueurs d'onde ENDDO ! Boucle sur les masses de traceurs !--AOD calculations for diagnostics od550aer(:) = SUM(tausum(:, la550, 1:naero), dim = 2) od865aer(:) = SUM(tausum(:, la865, 1:naero), dim = 2) !--extinction coefficient for diagnostic ec550aer(:, :) = SUM(tau(:, :, la550, 1:naero), dim = 3) / zdh(:, :) !--aod for particles lower than 1 micron od550lt1aer(:) = tausum(:, la550, 1) + tausum(:, la550, 2) * 0.3 + tausum(:, la550, 3) * 0.2 END SUBROUTINE SPLAEROPT_5WV_RRTM