| 1 | ! |
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| 2 | ! $Id: iniacademic.F90 1625 2012-05-09 13:14:48Z lguez $ |
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| 3 | ! |
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| 4 | SUBROUTINE iniacademic_loc(vcov,ucov,teta,q,masse,ps,phis,time_0) |
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| 5 | |
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| 6 | USE filtreg_mod, ONLY: inifilr |
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| 7 | use exner_hyb_m, only: exner_hyb |
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| 8 | use exner_milieu_m, only: exner_milieu |
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| 9 | USE infotrac, ONLY: nqtot,niso_possibles,ok_isotopes,iqpere,ok_iso_verif,tnat,alpha_ideal, & |
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| 10 | & iqiso,phase_num,iso_indnum,iso_num,zone_num |
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| 11 | USE control_mod, ONLY: day_step,planet_type |
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| 12 | USE parallel_lmdz, ONLY: ijb_u, ije_u, ijb_v, ije_v |
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| 13 | #ifdef CPP_IOIPSL |
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| 14 | USE IOIPSL, ONLY: getin |
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| 15 | #else |
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| 16 | ! if not using IOIPSL, we still need to use (a local version of) getin |
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| 17 | USE ioipsl_getincom, ONLY: getin |
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| 18 | #endif |
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| 19 | USE Write_Field |
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| 20 | USE comconst_mod, ONLY: cpp, kappa, g, daysec, dtvr, pi, im, jm |
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| 21 | USE logic_mod, ONLY: iflag_phys, read_start |
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| 22 | USE comvert_mod, ONLY: ap, bp, preff, presnivs, pressure_exner |
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| 23 | USE temps_mod, ONLY: annee_ref, day_ini, day_ref |
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| 24 | |
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| 25 | ! Author: Frederic Hourdin original: 15/01/93 |
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| 26 | ! The forcing defined here is from Held and Suarez, 1994, Bulletin |
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| 27 | ! of the American Meteorological Society, 75, 1825. |
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| 28 | |
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| 29 | IMPLICIT NONE |
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| 30 | |
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| 31 | ! Declararations: |
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| 32 | ! --------------- |
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| 33 | |
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| 34 | include "dimensions.h" |
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| 35 | include "paramet.h" |
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| 36 | include "comgeom.h" |
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| 37 | include "academic.h" |
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| 38 | include "ener.h" |
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| 39 | include "iniprint.h" |
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| 40 | |
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| 41 | ! Arguments: |
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| 42 | ! ---------- |
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| 43 | |
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| 44 | REAL,INTENT(OUT) :: time_0 |
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| 45 | |
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| 46 | ! fields |
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| 47 | REAL,INTENT(OUT) :: vcov(ijb_v:ije_v,llm) ! meridional covariant wind |
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| 48 | REAL,INTENT(OUT) :: ucov(ijb_u:ije_u,llm) ! zonal covariant wind |
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| 49 | REAL,INTENT(OUT) :: teta(ijb_u:ije_u,llm) ! potential temperature (K) |
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| 50 | REAL,INTENT(OUT) :: q(ijb_u:ije_u,llm,nqtot) ! advected tracers (.../kg_of_air) |
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| 51 | REAL,INTENT(OUT) :: ps(ijb_u:ije_u) ! surface pressure (Pa) |
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| 52 | REAL,INTENT(OUT) :: masse(ijb_u:ije_u,llm) ! air mass in grid cell (kg) |
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| 53 | REAL,INTENT(OUT) :: phis(ijb_u:ije_u) ! surface geopotential |
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| 54 | |
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| 55 | ! Local: |
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| 56 | ! ------ |
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| 57 | |
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| 58 | REAL,ALLOCATABLE :: vcov_glo(:,:),ucov_glo(:,:),teta_glo(:,:) |
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| 59 | REAL,ALLOCATABLE :: q_glo(:,:),masse_glo(:,:),ps_glo(:) |
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| 60 | REAL,ALLOCATABLE :: phis_glo(:) |
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| 61 | REAL p (ip1jmp1,llmp1 ) ! pression aux interfac.des couches |
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| 62 | REAL pks(ip1jmp1) ! exner au sol |
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| 63 | REAL pk(ip1jmp1,llm) ! exner au milieu des couches |
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| 64 | REAL phi(ip1jmp1,llm) ! geopotentiel |
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| 65 | REAL ddsin,zsig,tetapv,w_pv ! variables auxiliaires |
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| 66 | real tetastrat ! potential temperature in the stratosphere, in K |
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| 67 | real tetajl(jjp1,llm) |
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| 68 | INTEGER i,j,l,lsup,ij |
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| 69 | |
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| 70 | REAL teta0,ttp,delt_y,delt_z,eps ! Constantes pour profil de T |
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| 71 | REAL k_f,k_c_a,k_c_s ! Constantes de rappel |
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| 72 | LOGICAL ok_geost ! Initialisation vent geost. ou nul |
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| 73 | LOGICAL ok_pv ! Polar Vortex |
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| 74 | REAL phi_pv,dphi_pv,gam_pv ! Constantes pour polar vortex |
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| 75 | |
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| 76 | real zz,ran1 |
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| 77 | integer idum |
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| 78 | |
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| 79 | REAL zdtvr |
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| 80 | |
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| 81 | character(len=*),parameter :: modname="iniacademic" |
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| 82 | character(len=80) :: abort_message |
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| 83 | |
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| 84 | ! Sanity check: verify that options selected by user are not incompatible |
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| 85 | if ((iflag_phys==1).and. .not. read_start) then |
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| 86 | write(lunout,*) trim(modname)," error: if read_start is set to ", & |
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| 87 | " false then iflag_phys should not be 1" |
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| 88 | write(lunout,*) "You most likely want an aquaplanet initialisation", & |
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| 89 | " (iflag_phys >= 100)" |
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| 90 | call abort_gcm(modname,"incompatible iflag_phys==1 and read_start==.false.",1) |
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| 91 | endif |
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| 92 | |
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| 93 | !----------------------------------------------------------------------- |
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| 94 | ! 1. Initializations for Earth-like case |
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| 95 | ! -------------------------------------- |
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| 96 | ! |
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| 97 | ! initialize planet radius, rotation rate,... |
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| 98 | call conf_planete |
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| 99 | |
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| 100 | time_0=0. |
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| 101 | day_ref=1 |
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| 102 | annee_ref=0 |
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| 103 | |
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| 104 | im = iim |
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| 105 | jm = jjm |
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| 106 | day_ini = 1 |
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| 107 | dtvr = daysec/REAL(day_step) |
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| 108 | zdtvr=dtvr |
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| 109 | etot0 = 0. |
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| 110 | ptot0 = 0. |
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| 111 | ztot0 = 0. |
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| 112 | stot0 = 0. |
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| 113 | ang0 = 0. |
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| 114 | |
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| 115 | if (llm == 1) then |
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| 116 | ! specific initializations for the shallow water case |
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| 117 | kappa=1 |
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| 118 | endif |
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| 119 | |
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| 120 | CALL iniconst |
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| 121 | CALL inigeom |
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| 122 | CALL inifilr |
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| 123 | |
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| 124 | if (llm == 1) then |
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| 125 | ! initialize fields for the shallow water case, if required |
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| 126 | if (.not.read_start) then |
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| 127 | phis(ijb_u:ije_u)=0. |
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| 128 | q(ijb_u:ije_u,1:llm,1:nqtot)=0 |
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| 129 | CALL sw_case_williamson91_6_loc(vcov,ucov,teta,masse,ps) |
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| 130 | endif |
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| 131 | endif |
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| 132 | |
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| 133 | academic_case: if (iflag_phys >= 2) then |
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| 134 | ! initializations |
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| 135 | |
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| 136 | ! 1. local parameters |
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| 137 | ! by convention, winter is in the southern hemisphere |
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| 138 | ! Geostrophic wind or no wind? |
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| 139 | ok_geost=.TRUE. |
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| 140 | CALL getin('ok_geost',ok_geost) |
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| 141 | ! Constants for Newtonian relaxation and friction |
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| 142 | k_f=1. !friction |
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| 143 | CALL getin('k_j',k_f) |
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| 144 | k_f=1./(daysec*k_f) |
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| 145 | k_c_s=4. !cooling surface |
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| 146 | CALL getin('k_c_s',k_c_s) |
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| 147 | k_c_s=1./(daysec*k_c_s) |
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| 148 | k_c_a=40. !cooling free atm |
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| 149 | CALL getin('k_c_a',k_c_a) |
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| 150 | k_c_a=1./(daysec*k_c_a) |
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| 151 | ! Constants for Teta equilibrium profile |
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| 152 | teta0=315. ! mean Teta (S.H. 315K) |
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| 153 | CALL getin('teta0',teta0) |
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| 154 | ttp=200. ! Tropopause temperature (S.H. 200K) |
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| 155 | CALL getin('ttp',ttp) |
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| 156 | eps=0. ! Deviation to N-S symmetry(~0-20K) |
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| 157 | CALL getin('eps',eps) |
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| 158 | delt_y=60. ! Merid Temp. Gradient (S.H. 60K) |
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| 159 | CALL getin('delt_y',delt_y) |
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| 160 | delt_z=10. ! Vertical Gradient (S.H. 10K) |
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| 161 | CALL getin('delt_z',delt_z) |
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| 162 | ! Polar vortex |
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| 163 | ok_pv=.false. |
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| 164 | CALL getin('ok_pv',ok_pv) |
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| 165 | phi_pv=-50. ! Latitude of edge of vortex |
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| 166 | CALL getin('phi_pv',phi_pv) |
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| 167 | phi_pv=phi_pv*pi/180. |
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| 168 | dphi_pv=5. ! Width of the edge |
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| 169 | CALL getin('dphi_pv',dphi_pv) |
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| 170 | dphi_pv=dphi_pv*pi/180. |
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| 171 | gam_pv=4. ! -dT/dz vortex (in K/km) |
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| 172 | CALL getin('gam_pv',gam_pv) |
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| 173 | |
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| 174 | ! 2. Initialize fields towards which to relax |
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| 175 | ! Friction |
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| 176 | knewt_g=k_c_a |
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| 177 | DO l=1,llm |
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| 178 | zsig=presnivs(l)/preff |
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| 179 | knewt_t(l)=(k_c_s-k_c_a)*MAX(0.,(zsig-0.7)/0.3) |
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| 180 | kfrict(l)=k_f*MAX(0.,(zsig-0.7)/0.3) |
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| 181 | ENDDO |
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| 182 | DO j=1,jjp1 |
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| 183 | clat4((j-1)*iip1+1:j*iip1)=cos(rlatu(j))**4 |
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| 184 | ENDDO |
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| 185 | |
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| 186 | ! Potential temperature |
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| 187 | DO l=1,llm |
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| 188 | zsig=presnivs(l)/preff |
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| 189 | tetastrat=ttp*zsig**(-kappa) |
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| 190 | tetapv=tetastrat |
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| 191 | IF ((ok_pv).AND.(zsig.LT.0.1)) THEN |
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| 192 | tetapv=tetastrat*(zsig*10.)**(kappa*cpp*gam_pv/1000./g) |
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| 193 | ENDIF |
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| 194 | DO j=1,jjp1 |
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| 195 | ! Troposphere |
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| 196 | ddsin=sin(rlatu(j)) |
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| 197 | tetajl(j,l)=teta0-delt_y*ddsin*ddsin+eps*ddsin & |
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| 198 | -delt_z*(1.-ddsin*ddsin)*log(zsig) |
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| 199 | if (planet_type=="giant") then |
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| 200 | tetajl(j,l)=teta0+(delt_y* & |
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| 201 | ((sin(rlatu(j)*3.14159*eps+0.0001))**2) & |
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| 202 | / ((rlatu(j)*3.14159*eps+0.0001)**2)) & |
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| 203 | -delt_z*log(zsig) |
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| 204 | endif |
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| 205 | ! Profil stratospherique isotherme (+vortex) |
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| 206 | w_pv=(1.-tanh((rlatu(j)-phi_pv)/dphi_pv))/2. |
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| 207 | tetastrat=tetastrat*(1.-w_pv)+tetapv*w_pv |
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| 208 | tetajl(j,l)=MAX(tetajl(j,l),tetastrat) |
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| 209 | ENDDO |
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| 210 | ENDDO |
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| 211 | |
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| 212 | ! CALL writefield('theta_eq',tetajl) |
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| 213 | |
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| 214 | do l=1,llm |
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| 215 | do j=1,jjp1 |
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| 216 | do i=1,iip1 |
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| 217 | ij=(j-1)*iip1+i |
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| 218 | tetarappel(ij,l)=tetajl(j,l) |
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| 219 | enddo |
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| 220 | enddo |
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| 221 | enddo |
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| 222 | |
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| 223 | ! 3. Initialize fields (if necessary) |
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| 224 | IF (.NOT. read_start) THEN |
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| 225 | ! allocate global fields: |
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| 226 | ! allocate(vcov_glo(ip1jm,llm)) |
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| 227 | allocate(ucov_glo(ip1jmp1,llm)) |
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| 228 | allocate(teta_glo(ip1jmp1,llm)) |
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| 229 | allocate(ps_glo(ip1jmp1)) |
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| 230 | allocate(masse_glo(ip1jmp1,llm)) |
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| 231 | allocate(phis_glo(ip1jmp1)) |
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| 232 | |
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| 233 | ! surface pressure |
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| 234 | if (iflag_phys>2) then |
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| 235 | ! specific value for CMIP5 aqua/terra planets |
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| 236 | ! "Specify the initial dry mass to be equivalent to |
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| 237 | ! a global mean surface pressure (101325 minus 245) Pa." |
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| 238 | ps_glo(:)=101080. |
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| 239 | else |
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| 240 | ! use reference surface pressure |
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| 241 | ps_glo(:)=preff |
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| 242 | endif |
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| 243 | |
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| 244 | ! ground geopotential |
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| 245 | phis_glo(:)=0. |
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| 246 | |
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| 247 | CALL pression ( ip1jmp1, ap, bp, ps_glo, p ) |
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| 248 | if (pressure_exner) then |
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| 249 | CALL exner_hyb( ip1jmp1, ps_glo, p, pks, pk ) |
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| 250 | else |
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| 251 | call exner_milieu(ip1jmp1,ps_glo,p,pks,pk) |
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| 252 | endif |
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| 253 | CALL massdair(p,masse_glo) |
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| 254 | |
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| 255 | ! bulk initialization of temperature |
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| 256 | teta_glo(:,:)=tetarappel(:,:) |
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| 257 | |
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| 258 | ! geopotential |
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| 259 | CALL geopot(ip1jmp1,teta_glo,pk,pks,phis_glo,phi) |
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| 260 | |
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| 261 | ! winds |
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| 262 | if (ok_geost) then |
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| 263 | call ugeostr(phi,ucov_glo) |
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| 264 | else |
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| 265 | ucov_glo(:,:)=0. |
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| 266 | endif |
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| 267 | vcov(ijb_v:ije_v,1:llm)=0. |
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| 268 | |
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| 269 | ! bulk initialization of tracers |
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| 270 | if (planet_type=="earth") then |
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| 271 | ! Earth: first two tracers will be water |
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| 272 | |
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| 273 | do i=1,nqtot |
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| 274 | if (i == 1) q(ijb_u:ije_u,:,i)=1.e-10 |
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| 275 | if (i == 2) q(ijb_u:ije_u,:,i)=1.e-15 |
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| 276 | if (i.gt.2) q(ijb_u:ije_u,:,i)=0. |
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| 277 | |
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| 278 | ! CRisi: init des isotopes |
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| 279 | ! distill de Rayleigh très simplifiée |
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| 280 | if (ok_isotopes) then |
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| 281 | if ((iso_num(i).gt.0).and.(zone_num(i).eq.0)) then |
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| 282 | q(ijb_u:ije_u,:,i)=q(ijb_u:ije_u,:,iqpere(i)) & |
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| 283 | & *tnat(iso_num(i)) & |
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| 284 | & *(q(ijb_u:ije_u,:,iqpere(i))/30.e-3) & |
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| 285 | & **(alpha_ideal(iso_num(i))-1) |
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| 286 | endif |
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| 287 | if ((iso_num(i).gt.0).and.(zone_num(i).eq.1)) then |
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| 288 | q(ijb_u:ije_u,:,i)=q(ijb_u:ije_u,:,iqiso(iso_indnum(i),phase_num(i))) |
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| 289 | endif |
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| 290 | endif !if (ok_isotopes) then |
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| 291 | |
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| 292 | enddo |
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| 293 | else |
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| 294 | q(ijb_u:ije_u,:,:)=0 |
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| 295 | endif ! of if (planet_type=="earth") |
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| 296 | |
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| 297 | if (ok_iso_verif) then |
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| 298 | call check_isotopes(q,ijb_u,ije_u,'iniacademic_loc') |
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| 299 | endif !if (ok_iso_verif) then |
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| 300 | |
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| 301 | ! add random perturbation to temperature |
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| 302 | idum = -1 |
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| 303 | zz = ran1(idum) |
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| 304 | idum = 0 |
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| 305 | do l=1,llm |
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| 306 | do ij=iip2,ip1jm |
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| 307 | teta_glo(ij,l)=teta_glo(ij,l)*(1.+0.005*ran1(idum)) |
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| 308 | enddo |
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| 309 | enddo |
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| 310 | |
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| 311 | ! maintain periodicity in longitude |
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| 312 | do l=1,llm |
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| 313 | do ij=1,ip1jmp1,iip1 |
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| 314 | teta_glo(ij+iim,l)=teta_glo(ij,l) |
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| 315 | enddo |
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| 316 | enddo |
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| 317 | |
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| 318 | ! copy data from global array to local array: |
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| 319 | teta(ijb_u:ije_u,:)=teta_glo(ijb_u:ije_u,:) |
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| 320 | ucov(ijb_u:ije_u,:)=ucov_glo(ijb_u:ije_u,:) |
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| 321 | ! vcov(ijb_v:ije_v,:)=vcov_glo(ijb_v:ije_v,:) |
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| 322 | masse(ijb_u:ije_u,:)=masse_glo(ijb_u:ije_u,:) |
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| 323 | ps(ijb_u:ije_u)=ps_glo(ijb_u:ije_u) |
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| 324 | phis(ijb_u:ije_u)=phis_glo(ijb_u:ije_u) |
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| 325 | |
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| 326 | deallocate(teta_glo) |
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| 327 | deallocate(ucov_glo) |
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| 328 | ! deallocate(vcov_glo) |
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| 329 | deallocate(masse_glo) |
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| 330 | deallocate(ps_glo) |
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| 331 | deallocate(phis_glo) |
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| 332 | ENDIF ! of IF (.NOT. read_start) |
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| 333 | endif academic_case |
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| 334 | |
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| 335 | END SUBROUTINE iniacademic_loc |
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