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