| 1 |
guez |
3 |
PROGRAM gcm |
| 2 |
|
|
|
| 3 |
|
|
! General circulation model of LMD |
| 4 |
|
|
|
| 5 |
|
|
! From "gcm.F", version 1.4, 2006/04/04 15:05:16 |
| 6 |
|
|
|
| 7 |
|
|
! Avec coordonnées verticales hybrides, avec nouveaux opérateurs de |
| 8 |
|
|
! dissipation * (gradiv2, divgrad2, nxgraro2) |
| 9 |
|
|
|
| 10 |
|
|
! Authors: P. Le Van, L. Fairhead, F. Hourdin |
| 11 |
|
|
|
| 12 |
|
|
! Possibilité de choisir le schéma pour l'advection de "q", en |
| 13 |
|
|
! modifiant "iadv" dans "traceur.def". |
| 14 |
|
|
|
| 15 |
|
|
! Pour Van-Leer plus vapeur d'eau saturée : iadv(1)=4 |
| 16 |
|
|
! Pour Van-Leer : iadv=10 |
| 17 |
|
|
|
| 18 |
|
|
USE IOIPSL, only: ioconf_calendar |
| 19 |
|
|
use dimens_m, only: iim, jjm, llm, nqmx |
| 20 |
|
|
use dimphy, only: klon |
| 21 |
|
|
use paramet_m, only: ip1jm, ip1jmp1 |
| 22 |
|
|
use comconst, only: daysec, cpp, dtvr, dtphys, g, rad, r, initialize |
| 23 |
|
|
|
| 24 |
|
|
use comdissnew, only: lstardis, nitergdiv, nitergrot, niterh, tetagdiv, & |
| 25 |
|
|
tetagrot, tetatemp |
| 26 |
|
|
|
| 27 |
|
|
use conf_gcm_m, only: day_step, iperiod, anneeref, dayref, iecri, iphysiq, & |
| 28 |
|
|
nday, raz_date, periodav, conf_gcm |
| 29 |
|
|
|
| 30 |
|
|
use logic, only: iflag_phys |
| 31 |
|
|
use comgeom, only: rlatu, aire_2d, cu_2d, cv_2d, rlonv |
| 32 |
|
|
use temps, only: day_ref, annee_ref, day_ini, day_end, itau_phy, itau_dyn |
| 33 |
|
|
use com_io_dyn, only: histid, histvid, histaveid |
| 34 |
|
|
use tracstoke, only: istdyn, istphy |
| 35 |
|
|
use abort_gcm_m, only: abort_gcm |
| 36 |
|
|
use inithist_m, only: inithist |
| 37 |
|
|
use initdynav_m, only: initdynav |
| 38 |
|
|
use dynetat0_m, only: dynetat0 |
| 39 |
|
|
use grid_change, only: dyn_phy, init_dyn_phy |
| 40 |
|
|
use advtrac_m, only: iniadvtrac |
| 41 |
|
|
use leapfrog_m, only: leapfrog |
| 42 |
guez |
7 |
use dynredem0_m, only: dynredem0 |
| 43 |
guez |
3 |
|
| 44 |
|
|
IMPLICIT NONE |
| 45 |
|
|
|
| 46 |
|
|
REAL clesphy0(20) |
| 47 |
|
|
REAL zdtvr ! time step for dynamics, in s |
| 48 |
|
|
|
| 49 |
|
|
! Variables dynamiques : |
| 50 |
|
|
REAL vcov(ip1jm, llm), ucov(ip1jmp1, llm) ! vents covariants |
| 51 |
|
|
REAL teta(ip1jmp1, llm) ! température potentielle |
| 52 |
|
|
REAL q(ip1jmp1, llm, nqmx) ! champs advectés |
| 53 |
|
|
REAL ps(ip1jmp1) ! pression au sol (Pa) |
| 54 |
|
|
|
| 55 |
|
|
REAL masse(ip1jmp1, llm) ! masse d'air |
| 56 |
guez |
7 |
REAL phis(iim + 1, jjm + 1) ! géopotentiel au sol |
| 57 |
guez |
3 |
|
| 58 |
|
|
! Variables pour le fichier histoire : |
| 59 |
|
|
REAL time_0 |
| 60 |
|
|
|
| 61 |
|
|
!!INTEGER i |
| 62 |
|
|
|
| 63 |
|
|
! Calendrier : |
| 64 |
|
|
LOGICAL:: true_calendar = .false. ! default value |
| 65 |
|
|
|
| 66 |
|
|
! Variables pour l'initialisation de la physique : |
| 67 |
|
|
integer nq |
| 68 |
|
|
REAL zcufi(klon), zcvfi(klon) ! "cu" and "cv" values on the scalar grid |
| 69 |
|
|
REAL latfi(klon), lonfi(klon) |
| 70 |
|
|
REAL airefi(klon) |
| 71 |
|
|
|
| 72 |
|
|
logical mask_v(iim + 1, jjm) |
| 73 |
|
|
! (mask for points in the "v" grid, first index is for longitude, |
| 74 |
|
|
! second index is for latitude) |
| 75 |
|
|
|
| 76 |
|
|
namelist /main_nml/true_calendar |
| 77 |
|
|
|
| 78 |
|
|
!------------------------------------------------------------ |
| 79 |
|
|
|
| 80 |
|
|
print *, "Enter namelist 'main_nml'." |
| 81 |
|
|
read (unit=*, nml=main_nml) |
| 82 |
|
|
write(unit=*, nml=main_nml) |
| 83 |
|
|
|
| 84 |
|
|
! Initialisations: |
| 85 |
|
|
call initialize |
| 86 |
|
|
|
| 87 |
|
|
! Choix du calendrier : |
| 88 |
|
|
if (true_calendar) then |
| 89 |
|
|
call ioconf_calendar('gregorian') |
| 90 |
|
|
else |
| 91 |
|
|
call ioconf_calendar('360d') |
| 92 |
|
|
endif |
| 93 |
|
|
|
| 94 |
|
|
! Lecture des fichiers "gcm.def" ou "run.def" : |
| 95 |
|
|
CALL conf_gcm(clesphy0) |
| 96 |
|
|
|
| 97 |
|
|
! Initialisation des traceurs |
| 98 |
|
|
! Choix du schéma pour l'advection dans le fichier "traceur.def" ou via INCA |
| 99 |
|
|
call iniadvtrac(nq) |
| 100 |
|
|
|
| 101 |
|
|
! Lecture du fichier "start.nc" : |
| 102 |
|
|
CALL dynetat0(vcov, ucov, teta, q, masse, ps, phis, time_0) |
| 103 |
|
|
! Begin special experiment |
| 104 |
|
|
!!$ print *, "This is a special experiment." |
| 105 |
|
|
!!$ print *, "We are setting:" |
| 106 |
|
|
!!$ print *, "ucov = vcov = 0, q = 0, ps = 101325" |
| 107 |
|
|
!!$ print *, "We are averaging 'teta' horizontally." |
| 108 |
|
|
!!$ ucov = 0. |
| 109 |
|
|
!!$ vcov = 0. |
| 110 |
|
|
!!$ q = 0. |
| 111 |
|
|
!!$ ps = 101325. |
| 112 |
|
|
! Average teta over all longitudes and latitudes: |
| 113 |
|
|
!!$ forall(i = 1:llm) teta(:,i) = sum(teta(:,i)) / ip1jmp1 |
| 114 |
|
|
! (it would be better to weight each element with an associated |
| 115 |
|
|
! surface area) |
| 116 |
|
|
! End special experiment |
| 117 |
|
|
|
| 118 |
|
|
! Lecture des paramètres de contrôle pour la simulation : |
| 119 |
|
|
! on recalcule éventuellement le pas de temps |
| 120 |
|
|
IF (MOD(day_step, iperiod) /= 0) THEN |
| 121 |
|
|
call abort_gcm(modname = "gcm", message = & |
| 122 |
|
|
'Il faut choisir un nombre de pas par jour multiple de "iperiod".', & |
| 123 |
|
|
ierr = 1) |
| 124 |
|
|
ENDIF |
| 125 |
|
|
|
| 126 |
|
|
IF (MOD(day_step,iphysiq)/=0) THEN |
| 127 |
|
|
call abort_gcm(modname = "gcm", message = & |
| 128 |
|
|
'Il faut choisir un nombre de pas par jour multiple de "iphysiq".', & |
| 129 |
|
|
ierr = 1) |
| 130 |
|
|
ENDIF |
| 131 |
|
|
|
| 132 |
|
|
! On remet le calendrier à zero si demandé: |
| 133 |
|
|
if (annee_ref /= anneeref .or. day_ref /= dayref) then |
| 134 |
|
|
print *, 'Attention : les dates initiales lues dans le fichier ' // & |
| 135 |
|
|
'"start" ne correspondent pas à celles lues dans "gcm.def".' |
| 136 |
|
|
if (raz_date /= 1) then |
| 137 |
|
|
print *, 'On garde les dates du fichier "start".' |
| 138 |
|
|
else |
| 139 |
|
|
print *, 'On réinitialise à la date lue dans "gcm.def".' |
| 140 |
|
|
annee_ref = anneeref |
| 141 |
|
|
day_ref = dayref |
| 142 |
|
|
day_ini = dayref |
| 143 |
|
|
itau_dyn = 0 |
| 144 |
|
|
itau_phy = 0 |
| 145 |
|
|
time_0 = 0. |
| 146 |
|
|
endif |
| 147 |
|
|
ELSE |
| 148 |
|
|
raz_date = 0 |
| 149 |
|
|
endif |
| 150 |
|
|
|
| 151 |
|
|
! Initialisation des constantes dynamiques : |
| 152 |
|
|
zdtvr = daysec / REAL(day_step) |
| 153 |
|
|
IF (dtvr /= zdtvr) THEN |
| 154 |
|
|
print *, 'Warning: the time steps in the ".def" file and in ' // & |
| 155 |
|
|
'"start.nc" are different' |
| 156 |
|
|
print *, 'dtvr (from "start.nc") = ', dtvr |
| 157 |
|
|
print *, 'zdtvr (from ".def") = ', zdtvr |
| 158 |
|
|
print *, 'Using the value from the ".def" file.' |
| 159 |
|
|
dtvr = zdtvr |
| 160 |
|
|
ENDIF |
| 161 |
|
|
CALL iniconst |
| 162 |
|
|
|
| 163 |
|
|
! Initialisation de la géometrie : |
| 164 |
|
|
CALL inigeom |
| 165 |
|
|
|
| 166 |
|
|
! Initialisation du filtre : |
| 167 |
|
|
CALL inifilr |
| 168 |
|
|
|
| 169 |
|
|
! Initialisation de la dissipation : |
| 170 |
|
|
CALL inidissip(lstardis, nitergdiv, nitergrot, niterh, tetagdiv, tetagrot, & |
| 171 |
|
|
tetatemp) |
| 172 |
|
|
|
| 173 |
|
|
call init_dyn_phy |
| 174 |
|
|
|
| 175 |
|
|
! Initialisation de la physique : |
| 176 |
|
|
IF (iflag_phys == 1) THEN |
| 177 |
|
|
latfi(1)=rlatu(1) |
| 178 |
|
|
latfi(2:klon-1) = pack(spread(rlatu(2:jjm), 1, iim), .true.) |
| 179 |
|
|
latfi(klon)= rlatu(jjm + 1) |
| 180 |
|
|
|
| 181 |
|
|
lonfi(1)=0. |
| 182 |
|
|
lonfi(2:klon-1) = pack(spread(rlonv(:iim), 2, jjm - 1), .true.) |
| 183 |
|
|
lonfi(klon)= 0. |
| 184 |
|
|
|
| 185 |
|
|
zcufi = pack(cu_2d, dyn_phy) |
| 186 |
|
|
|
| 187 |
|
|
! Construct a mask for points in the "v" grid: |
| 188 |
|
|
mask_v = .true. |
| 189 |
|
|
mask_v(2:, 1) = .false. |
| 190 |
|
|
mask_v(iim + 1, 2:) = .false. |
| 191 |
|
|
|
| 192 |
|
|
zcvfi(:klon - 1) = pack(cv_2d, mask_v) |
| 193 |
|
|
zcvfi(klon) = cv_2d(1, jjm) |
| 194 |
|
|
! (that value of "cv_2d" is used twice in "zcvfi") |
| 195 |
|
|
|
| 196 |
|
|
airefi = pack(aire_2d, dyn_phy) |
| 197 |
|
|
print *, 'Attention : vitesse verticale nulle dans la physique.' |
| 198 |
|
|
CALL iniphysiq(klon, llm, daysec, day_ini, dtphys, latfi, lonfi, airefi, & |
| 199 |
|
|
zcufi, zcvfi, rad, g, r, cpp) |
| 200 |
|
|
ENDIF |
| 201 |
|
|
|
| 202 |
|
|
! Numéro de stockage pour les fichiers de redémarrage : |
| 203 |
|
|
! Initialisation des entrées-sorties : |
| 204 |
|
|
day_end = day_ini + nday |
| 205 |
|
|
print *, "day_ini = ", day_ini |
| 206 |
|
|
print *, "day_end = ", day_end |
| 207 |
|
|
|
| 208 |
guez |
5 |
CALL dynredem0("restart.nc", day_end, phis) |
| 209 |
guez |
3 |
CALL inithist(day_ref, annee_ref, zdtvr, nqmx, histid, histvid, & |
| 210 |
|
|
infile="dyn_hist.nc", t_ops = iecri * daysec, t_wrt = iecri * daysec) |
| 211 |
|
|
CALL initdynav(day_ref, annee_ref, zdtvr, nqmx, histaveid, & |
| 212 |
|
|
infile='dyn_hist_ave.nc', t_ops = iperiod * zdtvr, & |
| 213 |
|
|
t_wrt = periodav * daysec) |
| 214 |
|
|
|
| 215 |
|
|
! Choix des fréquences de stockage pour le hors-ligne : |
| 216 |
|
|
istdyn = day_step / 4 ! stockage toutes les 6 h = 1 jour / 4 |
| 217 |
|
|
istphy = istdyn / iphysiq |
| 218 |
|
|
|
| 219 |
|
|
! Intégration temporelle du modèle : |
| 220 |
|
|
CALL leapfrog(ucov, vcov, teta, ps, masse, phis, nq, q, clesphy0, time_0) |
| 221 |
|
|
|
| 222 |
|
|
END PROGRAM gcm |
Parent Directory
| 
Revision Log