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Annotation of /trunk/Sources/dyn3d/etat0.f

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Revision 134 - (hide annotations)
Wed Apr 29 15:47:56 2015 UTC (9 years ago) by guez
File size: 11817 byte(s)
Sources inside, compilation outside.
1 guez 3 module etat0_mod
2    
3     use indicesol, only: nbsrf
4     use dimphy, only: klon
5    
6     IMPLICIT NONE
7    
8     REAL pctsrf(klon, nbsrf)
9 guez 15 ! ("pctsrf(i, :)" is the composition of the surface at horizontal
10 guez 78 ! position "i")
11 guez 3
12     private nbsrf, klon
13    
14     contains
15    
16 guez 107 SUBROUTINE etat0(phis)
17 guez 3
18 guez 90 ! From "etat0_netcdf.F", version 1.3, 2005/05/25 13:10:09
19 guez 3
20 guez 27 use caldyn0_m, only: caldyn0
21 guez 79 use comconst, only: cpp, kappa, iniconst
22 guez 27 use comgeom, only: rlatu, rlonv, rlonu, rlatv, aire_2d, apoln, apols, &
23 guez 78 cu_2d, cv_2d, inigeom
24 guez 27 use dimens_m, only: iim, jjm, llm, nqmx
25 guez 3 use dimphy, only: zmasq
26     use dimsoil, only: nsoilmx
27 guez 79 use disvert_m, only: ap, bp, preff, pa, disvert
28 guez 129 use dynetat0_m, only: day_ref, annee_ref
29 guez 27 use dynredem0_m, only: dynredem0
30     use dynredem1_m, only: dynredem1
31     use exner_hyb_m, only: exner_hyb
32 guez 43 use geopot_m, only: geopot
33 guez 3 use grid_atob, only: grille_m
34     use grid_change, only: init_dyn_phy, dyn_phy
35 guez 61 use histclo_m, only: histclo
36 guez 27 use indicesol, only: is_oce, is_sic, is_ter, is_lic, epsfra
37 guez 18 use iniadvtrac_m, only: iniadvtrac
38 guez 54 use inifilr_m, only: inifilr
39 guez 67 use massdair_m, only: massdair
40 guez 48 use netcdf, only: nf90_nowrite
41 guez 68 use netcdf95, only: nf95_close, nf95_get_var, nf95_gw_var, &
42     nf95_inq_varid, nf95_open
43 guez 90 use nr_util, only: pi, assert
44 guez 27 use paramet_m, only: ip1jm, ip1jmp1
45     use phyredem_m, only: phyredem
46     use q_sat_m, only: q_sat
47 guez 7 use regr_lat_time_coefoz_m, only: regr_lat_time_coefoz
48     use regr_pr_o3_m, only: regr_pr_o3
49 guez 68 use startdyn, only: start_init_dyn
50 guez 78 USE start_init_orog_m, only: start_init_orog, mask
51 guez 43 use start_init_phys_m, only: start_init_phys
52 guez 54 use start_inter_3d_m, only: start_inter_3d
53 guez 129 use temps, only: itau_phy
54 guez 99 use test_disvert_m, only: test_disvert
55 guez 129 use unit_nml_m, only: unit_nml
56 guez 3
57 guez 107 REAL, intent(out):: phis(:, :) ! (iim + 1, jjm + 1)
58     ! surface geopotential, in m2 s-2
59 guez 3
60 guez 107 ! Local:
61    
62 guez 3 REAL latfi(klon), lonfi(klon)
63     ! (latitude and longitude of a point of the scalar grid identified
64 guez 90 ! by a simple index, in degrees)
65 guez 3
66 guez 73 REAL, dimension(iim + 1, jjm + 1, llm):: ucov, t3d, teta
67 guez 65 REAL vcov(iim + 1, jjm, llm)
68 guez 3
69 guez 68 REAL q(iim + 1, jjm + 1, llm, nqmx)
70 guez 3 ! (mass fractions of trace species
71 guez 68 ! "q(i, j, l)" is at longitude "rlonv(i)", latitude "rlatu(j)"
72 guez 3 ! and pressure level "pls(i, j, l)".)
73    
74     real qsat(iim + 1, jjm + 1, llm) ! mass fraction of saturating water vapor
75 guez 99 REAL sn(klon)
76     REAL qsolsrf(klon, nbsrf), snsrf(klon, nbsrf)
77 guez 3 REAL albe(klon, nbsrf), evap(klon, nbsrf)
78     REAL alblw(klon, nbsrf)
79     REAL tsoil(klon, nsoilmx, nbsrf)
80     REAL radsol(klon), rain_fall(klon), snow_fall(klon)
81     REAL solsw(klon), sollw(klon), fder(klon)
82     !IM "slab" ocean
83     real seaice(klon) ! kg m-2
84     REAL frugs(klon, nbsrf), agesno(klon, nbsrf)
85     REAL rugmer(klon)
86 guez 78 real, dimension(iim + 1, jjm + 1):: zmea_2d, zstd_2d, zsig_2d, zgam_2d
87 guez 3 real, dimension(iim + 1, jjm + 1):: zthe_2d, zpic_2d, zval_2d
88 guez 73 real, dimension(iim + 1, jjm + 1):: tsol_2d, qsol_2d, ps
89 guez 3 REAL zmea(klon), zstd(klon)
90     REAL zsig(klon), zgam(klon)
91     REAL zthe(klon)
92     REAL zpic(klon), zval(klon)
93 guez 78 REAL t_ancien(klon, llm), q_ancien(klon, llm)
94 guez 3 REAL run_off_lic_0(klon)
95     real clwcon(klon, llm), rnebcon(klon, llm), ratqs(klon, llm)
96 guez 68
97 guez 90 ! D\'eclarations pour lecture glace de mer :
98 guez 68 INTEGER iml_lic, jml_lic
99     INTEGER ncid, varid
100     REAL, pointer:: dlon_lic(:), dlat_lic(:)
101 guez 3 REAL, ALLOCATABLE:: fraclic(:, :) ! fraction land ice
102 guez 68 REAL flic_tmp(iim + 1, jjm + 1) ! fraction land ice temporary
103 guez 3
104     INTEGER l, ji
105    
106     REAL pk(iim + 1, jjm + 1, llm) ! fonction d'Exner aux milieux des couches
107     real pks(iim + 1, jjm + 1)
108    
109     REAL masse(iim + 1, jjm + 1, llm)
110 guez 70 REAL phi(iim + 1, jjm + 1, llm)
111 guez 3 REAL pbaru(ip1jmp1, llm), pbarv(ip1jm, llm)
112 guez 91 REAL w(iim + 1, jjm + 1, llm)
113 guez 3
114 guez 72 real sig1(klon, llm) ! section adiabatic updraft
115     real w01(klon, llm) ! vertical velocity within adiabatic updraft
116    
117 guez 97 real pls(iim + 1, jjm + 1, llm)
118     ! (pressure at mid-layer of LMDZ grid, in Pa)
119     ! "pls(i, j, l)" is at longitude "rlonv(i)", latitude "rlatu(j)",
120     ! for layer "l")
121    
122     REAL p3d(iim + 1, jjm + 1, llm+1) ! pressure at layer interfaces, in Pa
123     ! ("p3d(i, j, l)" is at longitude "rlonv(i)", latitude "rlatu(j)",
124     ! for interface "l")
125    
126 guez 129 namelist /etat0_nml/ day_ref, annee_ref
127    
128 guez 3 !---------------------------------
129    
130     print *, "Call sequence information: etat0"
131    
132 guez 129 print *, "Enter namelist 'etat0_nml'."
133     read(unit=*, nml=etat0_nml)
134     write(unit_nml, nml=etat0_nml)
135    
136 guez 79 CALL iniconst
137 guez 3
138 guez 36 ! Construct a grid:
139    
140 guez 3 pa = 5e4
141 guez 79 CALL disvert
142 guez 99 call test_disvert
143 guez 3 CALL inigeom
144     CALL inifilr
145    
146     latfi(1) = 90.
147     latfi(2:klon-1) = pack(spread(rlatu(2:jjm), 1, iim), .true.) * 180. / pi
148     ! (with conversion to degrees)
149     latfi(klon) = - 90.
150    
151     lonfi(1) = 0.
152     lonfi(2:klon-1) = pack(spread(rlonv(:iim), 2, jjm - 1), .true.) * 180. / pi
153     ! (with conversion to degrees)
154     lonfi(klon) = 0.
155    
156 guez 78 call start_init_orog(phis, zmea_2d, zstd_2d, zsig_2d, zgam_2d, zthe_2d, &
157     zpic_2d, zval_2d) ! also compute "mask"
158 guez 3 call init_dyn_phy ! define the mask "dyn_phy" for distinct grid points
159 guez 15 zmasq = pack(mask, dyn_phy)
160 guez 3 PRINT *, 'Masque construit'
161    
162 guez 43 call start_init_phys(tsol_2d, qsol_2d)
163 guez 78 CALL start_init_dyn(tsol_2d, phis, ps)
164 guez 3
165     ! Compute pressure on intermediate levels:
166 guez 73 forall(l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps
167     CALL exner_hyb(ps, p3d, pks, pk)
168 guez 90 call assert(MINVAL(pk) /= MAXVAL(pk), '"pk" should not be constant')
169 guez 3
170 guez 36 pls = preff * (pk / cpp)**(1. / kappa)
171     PRINT *, "minval(pls) = ", minval(pls)
172     print *, "maxval(pls) = ", maxval(pls)
173 guez 3
174 guez 65 call start_inter_3d('U', rlonv, rlatv, pls, ucov)
175     forall (l = 1: llm) ucov(:iim, :, l) = ucov(:iim, :, l) * cu_2d(:iim, :)
176     ucov(iim+1, :, :) = ucov(1, :, :)
177 guez 3
178 guez 65 call start_inter_3d('V', rlonu, rlatu(:jjm), pls(:, :jjm, :), vcov)
179     forall (l = 1: llm) vcov(:iim, :, l) = vcov(:iim, :, l) * cv_2d(:iim, :)
180     vcov(iim + 1, :, :) = vcov(1, :, :)
181 guez 3
182 guez 23 call start_inter_3d('TEMP', rlonu, rlatv, pls, t3d)
183 guez 78 PRINT *, 'minval(t3d) = ', minval(t3d)
184 guez 36 print *, "maxval(t3d) = ", maxval(t3d)
185 guez 3
186 guez 73 teta(:iim, :, :) = t3d(:iim, :, :) * cpp / pk(:iim, :, :)
187     teta(iim + 1, :, :) = teta(1, :, :)
188     DO l = 1, llm
189     teta(:, 1, l) = SUM(aire_2d(:, 1) * teta(:, 1, l)) / apoln
190     teta(:, jjm + 1, l) = SUM(aire_2d(:, jjm + 1) * teta(:, jjm + 1, l)) &
191 guez 3 / apols
192     ENDDO
193    
194 guez 90 ! Calcul de l'humidit\'e \`a saturation :
195 guez 36 qsat = q_sat(t3d, pls)
196     PRINT *, "minval(qsat) = ", minval(qsat)
197     print *, "maxval(qsat) = ", maxval(qsat)
198 guez 3 IF (MINVAL(qsat) == MAXVAL(qsat)) stop '"qsat" should not be constant'
199    
200     ! Water vapor:
201 guez 68 call start_inter_3d('R', rlonu, rlatv, pls, q(:, :, :, 1))
202     q(:, :, :, 1) = 0.01 * q(:, :, :, 1) * qsat
203     WHERE (q(:, :, :, 1) < 0.) q(:, :, :, 1) = 1E-10
204 guez 3 DO l = 1, llm
205 guez 68 q(:, 1, l, 1) = SUM(aire_2d(:, 1) * q(:, 1, l, 1)) / apoln
206     q(:, jjm + 1, l, 1) &
207     = SUM(aire_2d(:, jjm + 1) * q(:, jjm + 1, l, 1)) / apols
208 guez 3 ENDDO
209    
210 guez 68 q(:, :, :, 2:4) = 0. ! liquid water, radon and lead
211 guez 3
212 guez 5 if (nqmx >= 5) then
213     ! Ozone:
214 guez 7 call regr_lat_time_coefoz
215 guez 97 call regr_pr_o3(p3d, q(:, :, :, 5))
216 guez 7 ! Convert from mole fraction to mass fraction:
217 guez 78 q(:, :, :, 5) = q(:, :, :, 5) * 48. / 29.
218 guez 5 end if
219 guez 3
220 guez 13 sn = 0. ! snow
221     radsol = 0.
222     seaice = 0.
223     rugmer = 0.001
224 guez 78 zmea = pack(zmea_2d, dyn_phy)
225 guez 13 zstd = pack(zstd_2d, dyn_phy)
226     zsig = pack(zsig_2d, dyn_phy)
227     zgam = pack(zgam_2d, dyn_phy)
228     zthe = pack(zthe_2d, dyn_phy)
229     zpic = pack(zpic_2d, dyn_phy)
230     zval = pack(zval_2d, dyn_phy)
231 guez 3
232 guez 49 ! On initialise les sous-surfaces.
233 guez 3 ! Lecture du fichier glace de terre pour fixer la fraction de terre
234 guez 49 ! et de glace de terre :
235 guez 68
236 guez 48 call nf95_open("landiceref.nc", nf90_nowrite, ncid)
237 guez 68
238     call nf95_inq_varid(ncid, 'longitude', varid)
239     call nf95_gw_var(ncid, varid, dlon_lic)
240     iml_lic = size(dlon_lic)
241    
242     call nf95_inq_varid(ncid, 'latitude', varid)
243     call nf95_gw_var(ncid, varid, dlat_lic)
244     jml_lic = size(dlat_lic)
245    
246 guez 48 call nf95_inq_varid(ncid, 'landice', varid)
247 guez 68 ALLOCATE(fraclic(iml_lic, jml_lic))
248 guez 48 call nf95_get_var(ncid, varid, fraclic)
249 guez 68
250 guez 48 call nf95_close(ncid)
251 guez 3
252 guez 90 ! Interpolation sur la grille T du mod\`ele :
253 guez 68 PRINT *, 'Dimensions de "landiceref.nc"'
254 guez 3 print *, "iml_lic = ", iml_lic
255     print *, "jml_lic = ", jml_lic
256    
257 guez 90 ! Si les coordonn\'ees sont en degr\'es, on les transforme :
258 guez 78 IF (MAXVAL(dlon_lic) > pi) THEN
259 guez 68 dlon_lic = dlon_lic * pi / 180.
260 guez 3 ENDIF
261 guez 73 IF (maxval(dlat_lic) > pi) THEN
262 guez 68 dlat_lic = dlat_lic * pi/ 180.
263 guez 3 ENDIF
264    
265     flic_tmp(:iim, :) = grille_m(dlon_lic, dlat_lic, fraclic, rlonv(:iim), &
266     rlatu)
267     flic_tmp(iim + 1, :) = flic_tmp(1, :)
268    
269 guez 68 deallocate(dlon_lic, dlat_lic) ! pointers
270    
271 guez 3 ! Passage sur la grille physique
272 guez 15 pctsrf = 0.
273 guez 3 pctsrf(:, is_lic) = pack(flic_tmp, dyn_phy)
274 guez 90 ! Ad\'equation avec le maque terre/mer
275 guez 73 WHERE (pctsrf(:, is_lic) < EPSFRA) pctsrf(:, is_lic) = 0.
276 guez 13 WHERE (zmasq < EPSFRA) pctsrf(:, is_lic) = 0.
277     pctsrf(:, is_ter) = zmasq
278     where (zmasq > EPSFRA)
279     where (pctsrf(:, is_lic) >= zmasq)
280     pctsrf(:, is_lic) = zmasq
281 guez 3 pctsrf(:, is_ter) = 0.
282     elsewhere
283 guez 13 pctsrf(:, is_ter) = zmasq - pctsrf(:, is_lic)
284 guez 3 where (pctsrf(:, is_ter) < EPSFRA)
285     pctsrf(:, is_ter) = 0.
286 guez 13 pctsrf(:, is_lic) = zmasq
287 guez 3 end where
288     end where
289     end where
290    
291 guez 90 ! Sous-surface oc\'ean et glace de mer (pour d\'emarrer on met glace
292     ! de mer \`a 0) :
293 guez 13 pctsrf(:, is_oce) = 1. - zmasq
294 guez 3 WHERE (pctsrf(:, is_oce) < EPSFRA) pctsrf(:, is_oce) = 0.
295    
296 guez 90 ! V\'erification que somme des sous-surfaces vaut 1 :
297 guez 15 ji = count(abs(sum(pctsrf, dim = 2) - 1.) > EPSFRA)
298     IF (ji /= 0) then
299 guez 91 PRINT *, 'Bad surface percentages for ', ji, 'points'
300 guez 15 end IF
301 guez 3
302 guez 90 ! Calcul interm\'ediaire :
303 guez 3 CALL massdair(p3d, masse)
304    
305 guez 78 forall (l = 1:llm)
306 guez 3 masse(:, 1, l) = SUM(aire_2d(:iim, 1) * masse(:iim, 1, l)) / apoln
307     masse(:, jjm + 1, l) = &
308     SUM(aire_2d(:iim, jjm + 1) * masse(:iim, jjm + 1, l)) / apols
309     END forall
310    
311     ! Initialisation pour traceurs:
312 guez 5 call iniadvtrac
313 guez 3 itau_phy = 0
314    
315 guez 78 CALL geopot(teta, pk , pks, phis, phi)
316 guez 73 CALL caldyn0(ucov, vcov, teta, ps, masse, pk, phis, phi, w, pbaru, &
317 guez 23 pbarv)
318 guez 129 CALL dynredem0("start.nc", day_ref, phis)
319 guez 73 CALL dynredem1("start.nc", vcov, ucov, teta, q, masse, ps, itau=0)
320 guez 3
321     ! Initialisations :
322     snsrf(:, is_ter) = sn
323     snsrf(:, is_lic) = sn
324     snsrf(:, is_oce) = sn
325     snsrf(:, is_sic) = sn
326     albe(:, is_ter) = 0.08
327     albe(:, is_lic) = 0.6
328     albe(:, is_oce) = 0.5
329     albe(:, is_sic) = 0.6
330     alblw = albe
331 guez 15 evap = 0.
332 guez 99 qsolsrf = 150.
333     tsoil = spread(spread(pack(tsol_2d, dyn_phy), 2, nsoilmx), 3, nbsrf)
334 guez 3 rain_fall = 0.
335     snow_fall = 0.
336     solsw = 165.
337     sollw = -53.
338     t_ancien = 273.15
339     q_ancien = 0.
340     agesno = 0.
341     seaice = 0.
342    
343 guez 13 frugs(:, is_oce) = rugmer
344 guez 78 frugs(:, is_ter) = MAX(1e-5, zstd * zsig / 2)
345     frugs(:, is_lic) = MAX(1e-5, zstd * zsig / 2)
346 guez 3 frugs(:, is_sic) = 0.001
347     fder = 0.
348     clwcon = 0.
349     rnebcon = 0.
350     ratqs = 0.
351     run_off_lic_0 = 0.
352 guez 72 sig1 = 0.
353     w01 = 0.
354 guez 3
355 guez 99 call phyredem("startphy.nc", latfi, lonfi, pctsrf, tsoil(:, 1, :), tsoil, &
356     tsoil(:, 1, is_oce), seaice, qsolsrf, pack(qsol_2d, dyn_phy), snsrf, &
357     albe, alblw, evap, rain_fall, snow_fall, solsw, sollw, fder, radsol, &
358     frugs, agesno, zmea, zstd, zsig, zgam, zthe, zpic, zval, t_ancien, &
359     q_ancien, rnebcon, ratqs, clwcon, run_off_lic_0, sig1, w01)
360 guez 3 CALL histclo
361    
362     END SUBROUTINE etat0
363    
364     end module etat0_mod

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