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Contents of /trunk/libf/dyn3d/gcm.f90

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Revision 15 - (show annotations)
Fri Aug 1 15:24:12 2008 UTC (15 years, 8 months ago) by guez
File size: 6498 byte(s)
-- Minor modification of input/output:

Added variable "Sigma_O3_Royer" to "histday.nc". "ecrit_day" is not
modified in "physiq". Removed variables "pyu1", "pyv1", "ftsol1",
"ftsol2", "ftsol3", "ftsol4", "psrf1", "psrf2", "psrf3", "psrf4"
"mfu", "mfd", "en_u", "en_d", "de_d", "de_u", "coefh" from
"histrac.nc".

Variable "raz_date" of module "conf_gcm_m" has logical type instead of
integer type.

-- Should not change any result at run time:

Modified calls to "IOIPSL_Lionel" procedures because the interfaces of
these procedures have been simplified.

Changed name of variable in module "start_init_orog_m": "masque" to
"mask".

Created a module containing procedure "phyredem".

Removed arguments "punjours", "pdayref" and "ptimestep" of procedure
"iniphysiq".

Renamed procedure "gr_phy_write" to "gr_phy_write_2d". Created
procedure "gr_phy_write_3d".

Removed procedures "ini_undefstd", "moy_undefSTD", "calcul_STDlev",
"calcul_divers".

1 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, histclo
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_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 use dynredem0_m, only: dynredem0
43 use clesphys2, only: read_clesphys2
44
45 IMPLICIT NONE
46
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 REAL phis(iim + 1, jjm + 1) ! géopotentiel au sol
57
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 read_clesphys2
96 CALL conf_gcm
97
98 ! Initialisation des traceurs
99 ! Choix du schéma pour l'advection dans le fichier "traceur.def" ou via INCA
100 call iniadvtrac(nq)
101
102 ! Lecture du fichier "start.nc" :
103 CALL dynetat0(vcov, ucov, teta, q, masse, ps, phis, time_0)
104
105 ! Lecture des paramètres de contrôle pour la simulation :
106 ! on recalcule éventuellement le pas de temps
107 IF (MOD(day_step, iperiod) /= 0) THEN
108 call abort_gcm(modname = "gcm", message = &
109 'Il faut choisir un nombre de pas par jour multiple de "iperiod".', &
110 ierr = 1)
111 ENDIF
112
113 IF (MOD(day_step,iphysiq)/=0) THEN
114 call abort_gcm(modname = "gcm", message = &
115 'Il faut choisir un nombre de pas par jour multiple de "iphysiq".', &
116 ierr = 1)
117 ENDIF
118
119 ! On remet le calendrier à zero si demandé:
120 if (annee_ref /= anneeref .or. day_ref /= dayref) then
121 print *, 'Attention : les dates initiales lues dans le fichier ' // &
122 '"start" ne correspondent pas à celles lues dans "gcm.def".'
123 if (raz_date) then
124 print *, 'On réinitialise à la date lue dans "gcm.def".'
125 annee_ref = anneeref
126 day_ref = dayref
127 day_ini = dayref
128 itau_dyn = 0
129 time_0 = 0.
130 else
131 print *, 'On garde les dates du fichier "start".'
132 endif
133 ELSE
134 raz_date = .false.
135 endif
136
137 ! Initialisation des constantes dynamiques :
138 zdtvr = daysec / REAL(day_step)
139 IF (dtvr /= zdtvr) THEN
140 print *, 'Warning: the time steps in the ".def" file and in ' // &
141 '"start.nc" are different'
142 print *, 'dtvr (from "start.nc") = ', dtvr
143 print *, 'zdtvr (from ".def") = ', zdtvr
144 print *, 'Using the value from the ".def" file.'
145 dtvr = zdtvr
146 ENDIF
147 CALL iniconst
148
149 ! Initialisation de la géometrie :
150 CALL inigeom
151
152 ! Initialisation du filtre :
153 CALL inifilr
154
155 ! Initialisation de la dissipation :
156 CALL inidissip(lstardis, nitergdiv, nitergrot, niterh, tetagdiv, tetagrot, &
157 tetatemp)
158
159 call init_dyn_phy
160
161 ! Initialisation de la physique :
162 IF (iflag_phys == 1) THEN
163 latfi(1)=rlatu(1)
164 latfi(2:klon-1) = pack(spread(rlatu(2:jjm), 1, iim), .true.)
165 latfi(klon)= rlatu(jjm + 1)
166
167 lonfi(1)=0.
168 lonfi(2:klon-1) = pack(spread(rlonv(:iim), 2, jjm - 1), .true.)
169 lonfi(klon)= 0.
170
171 zcufi = pack(cu_2d, dyn_phy)
172
173 ! Construct a mask for points in the "v" grid:
174 mask_v = .true.
175 mask_v(2:, 1) = .false.
176 mask_v(iim + 1, 2:) = .false.
177
178 zcvfi(:klon - 1) = pack(cv_2d, mask_v)
179 zcvfi(klon) = cv_2d(1, jjm)
180 ! (that value of "cv_2d" is used twice in "zcvfi")
181
182 airefi = pack(aire_2d, dyn_phy)
183 print *, 'Attention : vitesse verticale nulle dans la physique.'
184 CALL iniphysiq(klon, llm, latfi, lonfi, airefi, &
185 zcufi, zcvfi, rad, g, r, cpp)
186 ENDIF
187
188 ! Numéro de stockage pour les fichiers de redémarrage :
189 ! Initialisation des entrées-sorties :
190 day_end = day_ini + nday
191 print *, "day_ini = ", day_ini
192 print *, "day_end = ", day_end
193
194 CALL dynredem0("restart.nc", day_end, phis)
195 CALL inithist(day_ref, annee_ref, zdtvr, nqmx, histid, histvid, &
196 infile="dyn_hist.nc", t_ops = iecri * daysec, t_wrt = iecri * daysec)
197 CALL initdynav(day_ref, annee_ref, zdtvr, nqmx, histaveid, &
198 infile='dyn_hist_ave.nc', t_ops = iperiod * zdtvr, &
199 t_wrt = periodav * daysec)
200
201 ! Choix des fréquences de stockage pour le hors-ligne :
202 istdyn = day_step / 4 ! stockage toutes les 6 h = 1 jour / 4
203 istphy = istdyn / iphysiq
204
205 ! Intégration temporelle du modèle :
206 CALL leapfrog(ucov, vcov, teta, ps, masse, phis, nq, q, time_0)
207
208 call histclo
209 print *, 'Simulation finished'
210 print *, 'Everything is cool'
211
212 END PROGRAM gcm

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