| 1 | ! $Id: iniacademic.F90 5223 2024-09-23 14:45:12Z abarral $ |
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| 2 | |
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| 3 | SUBROUTINE iniacademic(vcov, ucov, teta, q, masse, ps, phis, time_0) |
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| 4 | |
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| 5 | USE lmdz_filtreg, ONLY: inifilr |
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| 6 | USE lmdz_infotrac, ONLY: nqtot, niso, iqIsoPha, tracers, getKey, isoName, addPhase |
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| 7 | USE control_mod, ONLY: day_step, planet_type |
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| 8 | USE exner_hyb_m, ONLY: exner_hyb |
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| 9 | USE exner_milieu_m, ONLY: exner_milieu |
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| 10 | USE IOIPSL, ONLY: getin |
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| 11 | USE lmdz_write_field |
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| 12 | USE comconst_mod, ONLY: cpp, kappa, g, daysec, dtvr, pi, im, jm |
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| 13 | USE logic_mod, ONLY: iflag_phys, read_start |
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| 14 | USE comvert_mod, ONLY: ap, bp, preff, pa, presnivs, pressure_exner |
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| 15 | USE temps_mod, ONLY: annee_ref, day_ini, day_ref |
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| 16 | USE ener_mod, ONLY: etot0, ptot0, ztot0, stot0, ang0 |
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| 17 | USE netcdf, ONLY: nf90_nowrite, nf90_open, nf90_noerr, nf90_inq_varid, nf90_close, nf90_get_var |
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| 18 | USE lmdz_ran1, ONLY: ran1 |
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| 19 | USE lmdz_iniprint, ONLY: lunout, prt_level |
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| 20 | USE lmdz_academic, ONLY: tetarappel, knewt_t, kfrict, knewt_g, clat4 |
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| 21 | USE lmdz_comgeom |
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| 22 | |
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| 23 | ! Author: Frederic Hourdin original: 15/01/93 |
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| 24 | ! The forcing defined here is from Held and Suarez, 1994, Bulletin |
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| 25 | ! of the American Meteorological Society, 75, 1825. |
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| 26 | |
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| 27 | USE lmdz_dimensions, ONLY: iim, jjm, llm, ndm |
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| 28 | USE lmdz_paramet |
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| 29 | USE lmdz_check_isotopes, ONLY: check_isotopes_seq |
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| 30 | |
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| 31 | IMPLICIT NONE |
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| 32 | |
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| 33 | ! Declararations: |
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| 34 | ! --------------- |
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| 35 | |
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| 36 | |
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| 37 | |
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| 38 | |
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| 39 | ! Arguments: |
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| 40 | ! ---------- |
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| 41 | |
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| 42 | REAL, INTENT(OUT) :: time_0 |
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| 43 | |
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| 44 | ! fields |
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| 45 | REAL, INTENT(OUT) :: vcov(ip1jm, llm) ! meridional covariant wind |
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| 46 | REAL, INTENT(OUT) :: ucov(ip1jmp1, llm) ! zonal covariant wind |
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| 47 | REAL, INTENT(OUT) :: teta(ip1jmp1, llm) ! potential temperature (K) |
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| 48 | REAL, INTENT(OUT) :: q(ip1jmp1, llm, nqtot) ! advected tracers (.../kg_of_air) |
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| 49 | REAL, INTENT(OUT) :: ps(ip1jmp1) ! surface pressure (Pa) |
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| 50 | REAL, INTENT(OUT) :: masse(ip1jmp1, llm) ! air mass in grid cell (kg) |
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| 51 | REAL, INTENT(OUT) :: phis(ip1jmp1) ! surface geopotential |
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| 52 | |
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| 53 | ! Local: |
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| 54 | ! ------ |
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| 55 | |
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| 56 | REAL p (ip1jmp1, llmp1) ! pression aux interfac.des couches |
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| 57 | REAL pks(ip1jmp1) ! exner au sol |
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| 58 | REAL pk(ip1jmp1, llm) ! exner au milieu des couches |
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| 59 | REAL phi(ip1jmp1, llm) ! geopotentiel |
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| 60 | REAL ddsin, zsig, tetapv, w_pv ! variables auxiliaires |
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| 61 | REAL tetastrat ! potential temperature in the stratosphere, in K |
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| 62 | REAL tetajl(jjp1, llm) |
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| 63 | INTEGER i, j, l, lsup, ij, iq, iName, iPhase, iqParent |
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| 64 | |
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| 65 | INTEGER :: nid_relief, varid, ierr |
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| 66 | REAL, DIMENSION(iip1, jjp1) :: relief |
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| 67 | |
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| 68 | REAL teta0, ttp, delt_y, delt_z, eps ! Constantes pour profil de T |
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| 69 | REAL k_f, k_c_a, k_c_s ! Constantes de rappel |
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| 70 | LOGICAL ok_geost ! Initialisation vent geost. ou nul |
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| 71 | LOGICAL ok_pv ! Polar Vortex |
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| 72 | REAL phi_pv, dphi_pv, gam_pv, tetanoise ! Constantes pour polar vortex |
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| 73 | |
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| 74 | REAL zz |
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| 75 | INTEGER idum |
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| 76 | |
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| 77 | REAL zdtvr, tnat, alpha_ideal |
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| 78 | LOGICAL :: ltnat1 |
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| 79 | |
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| 80 | character(len=*),parameter :: modname="iniacademic" |
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| 81 | character(len=80) :: abort_message |
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| 82 | |
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| 83 | ! Sanity check: verify that options selected by user are not incompatible |
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| 84 | IF ((iflag_phys==1).AND. .NOT. read_start) THEN |
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| 85 | WRITE(lunout, *) trim(modname), " error: if read_start is set to ", & |
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| 86 | " false then iflag_phys should not be 1" |
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| 87 | WRITE(lunout, *) "You most likely want an aquaplanet initialisation", & |
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| 88 | " (iflag_phys >= 100)" |
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| 89 | CALL abort_gcm(modname, "incompatible iflag_phys==1 and read_start==.FALSE.", 1) |
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| 90 | ENDIF |
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| 91 | |
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| 92 | !----------------------------------------------------------------------- |
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| 93 | ! 1. Initializations for Earth-like case |
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| 94 | ! -------------------------------------- |
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| 95 | |
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| 96 | ! initialize planet radius, rotation rate,... |
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| 97 | CALL conf_planete |
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| 98 | |
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| 99 | time_0 = 0. |
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| 100 | day_ref = 1 |
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| 101 | annee_ref = 0 |
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| 102 | |
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| 103 | im = iim |
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| 104 | jm = jjm |
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| 105 | day_ini = 1 |
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| 106 | dtvr = daysec / REAL(day_step) |
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| 107 | zdtvr = dtvr |
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| 108 | etot0 = 0. |
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| 109 | ptot0 = 0. |
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| 110 | ztot0 = 0. |
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| 111 | stot0 = 0. |
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| 112 | ang0 = 0. |
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| 113 | |
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| 114 | IF (llm == 1) THEN |
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| 115 | ! specific initializations for the shallow water case |
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| 116 | kappa = 1 |
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| 117 | ENDIF |
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| 118 | |
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| 119 | CALL iniconst |
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| 120 | CALL inigeom |
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| 121 | CALL inifilr |
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| 122 | |
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| 123 | |
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| 124 | !------------------------------------------------------------------ |
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| 125 | ! Initialize pressure and mass field if read_start=.FALSE. |
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| 126 | !------------------------------------------------------------------ |
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| 127 | |
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| 128 | IF (.NOT. read_start) THEN |
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| 129 | |
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| 130 | !------------------------------------------------------------------ |
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| 131 | ! Lecture eventuelle d'un fichier de relief interpollee sur la grille |
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| 132 | ! du modele. |
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| 133 | ! On suppose que le fichier relief_in.nc est stoké sur une grille |
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| 134 | ! iim*jjp1 |
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| 135 | ! Facile a créer à partir de la commande |
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| 136 | ! cdo remapcon,fichier_output_phys.nc Relief.nc relief_in.nc |
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| 137 | !------------------------------------------------------------------ |
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| 138 | |
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| 139 | relief = 0. |
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| 140 | ierr = nf90_open ('relief_in.nc', nf90_nowrite, nid_relief) |
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| 141 | IF (ierr==nf90_noerr) THEN |
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| 142 | ierr = nf90_inq_varid(nid_relief, 'RELIEF', varid) |
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| 143 | IF (ierr==nf90_noerr) THEN |
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| 144 | ierr = nf90_get_var(nid_relief, varid, relief(1:iim, 1:jjp1)) |
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| 145 | relief(iip1, :) = relief(1, :) |
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| 146 | else |
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| 147 | CALL abort_gcm ('iniacademic', 'variable RELIEF pas la', 1) |
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| 148 | endif |
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| 149 | endif |
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| 150 | ierr = nf90_close (nid_relief) |
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| 151 | |
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| 152 | !------------------------------------------------------------------ |
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| 153 | ! Initialisation du geopotentiel au sol et de la pression |
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| 154 | !------------------------------------------------------------------ |
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| 155 | |
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| 156 | PRINT*, 'relief=', minval(relief), maxval(relief), 'g=', g |
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| 157 | DO j = 1, jjp1 |
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| 158 | DO i = 1, iip1 |
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| 159 | phis((j - 1) * iip1 + i) = g * relief(i, j) |
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| 160 | enddo |
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| 161 | enddo |
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| 162 | PRINT*, 'phis=', minval(phis), maxval(phis), 'g=', g |
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| 163 | |
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| 164 | ! ground geopotential |
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| 165 | !phis(:)=0. |
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| 166 | ps(:) = preff |
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| 167 | CALL pression (ip1jmp1, ap, bp, ps, p) |
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| 168 | |
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| 169 | IF (pressure_exner) THEN |
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| 170 | CALL exner_hyb(ip1jmp1, ps, p, pks, pk) |
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| 171 | else |
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| 172 | CALL exner_milieu(ip1jmp1, ps, p, pks, pk) |
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| 173 | endif |
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| 174 | CALL massdair(p, masse) |
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| 175 | ENDIF |
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| 176 | |
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| 177 | IF (llm == 1) THEN |
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| 178 | ! initialize fields for the shallow water case, if required |
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| 179 | IF (.NOT.read_start) THEN |
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| 180 | phis(:) = 0. |
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| 181 | q(:, :, :) = 0 |
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| 182 | CALL sw_case_williamson91_6(vcov, ucov, teta, masse, ps) |
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| 183 | endif |
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| 184 | ENDIF |
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| 185 | |
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| 186 | academic_case: if (iflag_phys >= 2) THEN |
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| 187 | ! initializations |
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| 188 | |
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| 189 | ! 1. local parameters |
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| 190 | ! by convention, winter is in the southern hemisphere |
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| 191 | ! Geostrophic wind or no wind? |
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| 192 | ok_geost = .TRUE. |
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| 193 | CALL getin('ok_geost', ok_geost) |
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| 194 | ! Constants for Newtonian relaxation and friction |
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| 195 | k_f = 1. !friction |
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| 196 | CALL getin('k_j', k_f) |
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| 197 | k_f = 1. / (daysec * k_f) |
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| 198 | k_c_s = 4. !cooling surface |
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| 199 | CALL getin('k_c_s', k_c_s) |
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| 200 | k_c_s = 1. / (daysec * k_c_s) |
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| 201 | k_c_a = 40. !cooling free atm |
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| 202 | CALL getin('k_c_a', k_c_a) |
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| 203 | k_c_a = 1. / (daysec * k_c_a) |
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| 204 | ! Constants for Teta equilibrium profile |
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| 205 | teta0 = 315. ! mean Teta (S.H. 315K) |
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| 206 | CALL getin('teta0', teta0) |
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| 207 | ttp = 200. ! Tropopause temperature (S.H. 200K) |
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| 208 | CALL getin('ttp', ttp) |
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| 209 | eps = 0. ! Deviation to N-S symmetry(~0-20K) |
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| 210 | CALL getin('eps', eps) |
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| 211 | delt_y = 60. ! Merid Temp. Gradient (S.H. 60K) |
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| 212 | CALL getin('delt_y', delt_y) |
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| 213 | delt_z = 10. ! Vertical Gradient (S.H. 10K) |
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| 214 | CALL getin('delt_z', delt_z) |
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| 215 | ! Polar vortex |
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| 216 | ok_pv = .FALSE. |
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| 217 | CALL getin('ok_pv', ok_pv) |
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| 218 | phi_pv = -50. ! Latitude of edge of vortex |
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| 219 | CALL getin('phi_pv', phi_pv) |
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| 220 | phi_pv = phi_pv * pi / 180. |
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| 221 | dphi_pv = 5. ! Width of the edge |
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| 222 | CALL getin('dphi_pv', dphi_pv) |
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| 223 | dphi_pv = dphi_pv * pi / 180. |
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| 224 | gam_pv = 4. ! -dT/dz vortex (in K/km) |
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| 225 | CALL getin('gam_pv', gam_pv) |
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| 226 | tetanoise = 0.005 |
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| 227 | CALL getin('tetanoise', tetanoise) |
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| 228 | |
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| 229 | ! 2. Initialize fields towards which to relax |
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| 230 | ! Friction |
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| 231 | knewt_g = k_c_a |
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| 232 | DO l = 1, llm |
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| 233 | zsig = presnivs(l) / preff |
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| 234 | knewt_t(l) = (k_c_s - k_c_a) * MAX(0., (zsig - 0.7) / 0.3) |
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| 235 | kfrict(l) = k_f * MAX(0., (zsig - 0.7) / 0.3) |
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| 236 | ENDDO |
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| 237 | DO j = 1, jjp1 |
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| 238 | clat4((j - 1) * iip1 + 1:j * iip1) = cos(rlatu(j))**4 |
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| 239 | ENDDO |
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| 240 | |
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| 241 | ! Potential temperature |
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| 242 | DO l = 1, llm |
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| 243 | zsig = presnivs(l) / preff |
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| 244 | tetastrat = ttp * zsig**(-kappa) |
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| 245 | tetapv = tetastrat |
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| 246 | IF ((ok_pv).AND.(zsig<0.1)) THEN |
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| 247 | tetapv = tetastrat * (zsig * 10.)**(kappa * cpp * gam_pv / 1000. / g) |
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| 248 | ENDIF |
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| 249 | DO j = 1, jjp1 |
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| 250 | ! Troposphere |
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| 251 | ddsin = sin(rlatu(j)) |
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| 252 | tetajl(j, l) = teta0 - delt_y * ddsin * ddsin + eps * ddsin & |
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| 253 | - delt_z * (1. - ddsin * ddsin) * log(zsig) |
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| 254 | IF (planet_type=="giant") THEN |
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| 255 | tetajl(j, l) = teta0 + (delt_y * & |
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| 256 | ((sin(rlatu(j) * 3.14159 * eps + 0.0001))**2) & |
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| 257 | / ((rlatu(j) * 3.14159 * eps + 0.0001)**2)) & |
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| 258 | - delt_z * log(zsig) |
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| 259 | endif |
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| 260 | ! Profil stratospherique isotherme (+vortex) |
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| 261 | w_pv = (1. - tanh((rlatu(j) - phi_pv) / dphi_pv)) / 2. |
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| 262 | tetastrat = tetastrat * (1. - w_pv) + tetapv * w_pv |
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| 263 | tetajl(j, l) = MAX(tetajl(j, l), tetastrat) |
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| 264 | ENDDO |
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| 265 | ENDDO |
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| 266 | |
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| 267 | ! CALL writefield('theta_eq',tetajl) |
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| 268 | |
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| 269 | DO l = 1, llm |
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| 270 | DO j = 1, jjp1 |
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| 271 | DO i = 1, iip1 |
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| 272 | ij = (j - 1) * iip1 + i |
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| 273 | tetarappel(ij, l) = tetajl(j, l) |
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| 274 | enddo |
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| 275 | enddo |
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| 276 | enddo |
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| 277 | |
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| 278 | ! 3. Initialize fields (if necessary) |
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| 279 | IF (.NOT. read_start) THEN |
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| 280 | ! bulk initialization of temperature |
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| 281 | IF (iflag_phys>10000) THEN |
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| 282 | ! Particular case to impose a constant temperature T0=0.01*iflag_physx |
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| 283 | teta(:, :) = 0.01 * iflag_phys / (pk(:, :) / cpp) |
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| 284 | ELSE |
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| 285 | teta(:, :) = tetarappel(:, :) |
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| 286 | ENDIF |
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| 287 | ! geopotential |
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| 288 | CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
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| 289 | |
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| 290 | DO l = 1, llm |
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| 291 | PRINT*, 'presnivs,play,l', presnivs(l), (pk(1, l) / cpp)**(1. / kappa) * preff |
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| 292 | !pks(ij) = (cpp/preff) * ps(ij) |
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| 293 | !pk(ij,1) = .5*pks(ij) |
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| 294 | ! pk = cpp * (p/preff)^kappa |
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| 295 | ENDDO |
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| 296 | |
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| 297 | ! winds |
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| 298 | IF (ok_geost) THEN |
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| 299 | CALL ugeostr(phi, ucov) |
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| 300 | else |
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| 301 | ucov(:, :) = 0. |
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| 302 | endif |
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| 303 | vcov(:, :) = 0. |
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| 304 | |
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| 305 | ! bulk initialization of tracers |
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| 306 | IF (planet_type=="earth") THEN |
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| 307 | ltnat1 = .TRUE.; CALL getin('tnateq1', ltnat1)! Earth: first two tracers will be water |
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| 308 | DO iq = 1, nqtot |
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| 309 | q(:, :, iq) = 0. |
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| 310 | IF(tracers(iq)%name == addPhase('H2O', 'g')) q(:, :, iq) = 1.e-10 |
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| 311 | IF(tracers(iq)%name == addPhase('H2O', 'l')) q(:, :, iq) = 1.e-15 |
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| 312 | |
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| 313 | ! CRisi: init des isotopes |
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| 314 | ! distill de Rayleigh très simplifiée |
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| 315 | iName = tracers(iq)%iso_iName |
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| 316 | if (niso <= 0 .OR. iName <= 0) CYCLE |
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| 317 | iPhase = tracers(iq)%iso_iPhase |
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| 318 | iqParent = tracers(iq)%iqParent |
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| 319 | IF(tracers(iq)%iso_iZone == 0) THEN |
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| 320 | IF(ltnat1) THEN |
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| 321 | tnat = 1.0 |
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| 322 | alpha_ideal = 1.0 |
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| 323 | WRITE(lunout, *)'In '//TRIM(modname)//': !!! Beware: alpha_ideal put to 1 !!!' |
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| 324 | ELSE |
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| 325 | IF(getKey('tnat', tnat, isoName(iName)) .OR. getKey('alpha', alpha_ideal, isoName(iName))) & |
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| 326 | CALL abort_gcm(TRIM(modname), 'missing isotopic parameters', 1) |
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| 327 | END IF |
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| 328 | q(:,:,iq) = q(:,:,iqParent)*tnat*(q(:,:,iqParent)/30.e-3)**(alpha_ideal-1.) |
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| 329 | ELSE !IF(tracers(iq)%iso_iZone == 0) THEN |
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| 330 | IF(tracers(iq)%iso_iZone == 1) THEN |
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| 331 | ! correction le 14 mai 2024 pour que tous les traceurs soient de la couleur 1. |
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| 332 | ! Sinon, on va avoir des porblèmes de conservation de masse de traceurs. |
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| 333 | q(:,:,iq) = q(:,:,iqIsoPha(iName,iPhase)) |
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| 334 | else !IF(tracers(iq)%iso_iZone == 1) THEN |
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| 335 | q(:,:,iq) = 0. |
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| 336 | endif !IF(tracers(iq)%iso_iZone == 1) THEN |
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| 337 | END IF !IF(tracers(iq)%iso_iZone == 0) THEN |
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| 338 | enddo |
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| 339 | else |
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| 340 | q(:,:,:)=0 |
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| 341 | endif ! of if (planet_type=="earth") |
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| 342 | |
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| 343 | CALL check_isotopes_seq(q, ip1jmp1, 'iniacademic_loc') |
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| 344 | |
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| 345 | ! add random perturbation to temperature |
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| 346 | idum = -1 |
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| 347 | zz = ran1(idum) |
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| 348 | idum = 0 |
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| 349 | DO l = 1, llm |
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| 350 | DO ij = iip2, ip1jm |
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| 351 | teta(ij, l) = teta(ij, l) * (1. + tetanoise * ran1(idum)) |
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| 352 | enddo |
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| 353 | enddo |
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| 354 | |
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| 355 | ! maintain periodicity in longitude |
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| 356 | DO l = 1, llm |
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| 357 | DO ij = 1, ip1jmp1, iip1 |
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| 358 | teta(ij + iim, l) = teta(ij, l) |
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| 359 | enddo |
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| 360 | enddo |
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| 361 | |
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| 362 | ENDIF ! of IF (.NOT. read_start) |
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| 363 | ENDIF academic_case |
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| 364 | |
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| 365 | END SUBROUTINE iniacademic |
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