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

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Revision 22 - (show annotations)
Fri Jul 31 15:18:47 2009 UTC (14 years, 9 months ago) by guez
File size: 14365 byte(s)
Superficial modifications
1 module limit_mod
2
3 ! This module is clean: no C preprocessor directive, no include line.
4
5 IMPLICIT none
6
7 contains
8
9 SUBROUTINE limit
10
11 ! Authors: L. Fairhead, Z. X. Li, P. Le Van
12
13 ! This subroutine creates files containing boundary conditions.
14 ! It uses files with climatological data.
15 ! Both grids must be regular.
16
17 use dimens_m, only: iim, jjm
18 use comconst, only: daysec, dtvr
19 use indicesol, only: epsfra, nbsrf, is_ter, is_oce, is_lic, is_sic
20 use dimphy, only: klon, zmasq
21 use conf_gcm_m, only: day_step
22 use comgeom, only: rlonu, rlatv
23 use etat0_mod, only: pctsrf
24 use start_init_orog_m, only: mask
25 use conf_dat2d_m, only: conf_dat2d
26 use inter_barxy_m, only: inter_barxy
27 use numer_rec, only: spline, splint
28 use grid_change, only: dyn_phy
29
30 use netcdf95, only: handle_err, nf95_gw_var, NF95_CLOSE, NF95_DEF_DIM, &
31 nf95_enddef, NF95_CREATE, nf95_inq_dimid, nf95_inquire_dimension, &
32 nf95_inq_varid, NF95_OPEN
33 use netcdf, only: NF90_CLOBBER, nf90_def_var, NF90_FLOAT, NF90_GET_VAR, &
34 NF90_GLOBAL, NF90_NOWRITE, NF90_PUT_ATT, NF90_PUT_VAR, &
35 NF90_UNLIMITED
36
37 ! Variables local to the procedure:
38
39 LOGICAL:: extrap = .FALSE.
40 ! (extrapolation de données, comme pour les SST lorsque le fichier
41 ! ne contient pas uniquement des points océaniques)
42
43 REAL phy_alb(klon, 360)
44 REAL phy_sst(klon, 360)
45 REAL phy_bil(klon, 360)
46 REAL phy_rug(klon, 360)
47 REAL phy_ice(klon)
48
49 real pctsrf_t(klon, nbsrf, 360) ! composition of the surface
50
51 ! Pour le champ de départ:
52 INTEGER imdep, jmdep, lmdep
53
54 REAL, ALLOCATABLE:: dlon(:), dlat(:)
55 REAL, pointer:: dlon_ini(:), dlat_ini(:), timeyear(:)
56 REAL, ALLOCATABLE:: champ(:, :)
57 REAL, ALLOCATABLE:: work(:, :)
58
59 ! Pour le champ interpolé 3D :
60 REAL, allocatable:: champtime(:, :, :)
61 REAL champan(iim + 1, jjm + 1, 360)
62
63 ! Pour l'inteprolation verticale :
64 REAL, allocatable:: yder(:)
65
66 INTEGER ierr
67
68 INTEGER nid, ndim, ntim
69 INTEGER dims(2), debut(2)
70 INTEGER id_tim
71 INTEGER id_SST, id_BILS, id_RUG, id_ALB
72 INTEGER id_FOCE, id_FSIC, id_FTER, id_FLIC
73
74 INTEGER i, j, k, l
75 INTEGER ncid, varid, dimid
76
77 REAL, parameter:: tmidmonth(12) = (/(15. + 30. * i, i = 0, 11)/)
78
79 namelist /limit_nml/extrap
80
81 !--------------------
82
83 print *, "Call sequence information: limit"
84
85 print *, "Enter namelist 'limit_nml'."
86 read (unit=*, nml=limit_nml)
87 write(unit=*, nml=limit_nml)
88
89 ! Initializations:
90 dtvr = daysec / real(day_step)
91 CALL inigeom
92
93 ! Process rugosity:
94
95 PRINT *, 'Processing rugosity...'
96 call NF95_OPEN('Rugos.nc', NF90_NOWRITE, ncid)
97
98 ! Read coordinate variables:
99
100 call nf95_inq_varid(ncid, "longitude", varid)
101 call nf95_gw_var(ncid, varid, dlon_ini)
102 imdep = size(dlon_ini)
103
104 call nf95_inq_varid(ncid, "latitude", varid)
105 call nf95_gw_var(ncid, varid, dlat_ini)
106 jmdep = size(dlat_ini)
107
108 call nf95_inq_varid(ncid, "temps", varid)
109 call nf95_gw_var(ncid, varid, timeyear)
110 lmdep = size(timeyear)
111
112 ALLOCATE(champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
113 allocate(dlon(imdep), dlat(jmdep))
114 call NF95_INQ_VARID(ncid, 'RUGOS', varid)
115
116 ! Read the primary variable day by day and regrid horizontally,
117 ! result in "champtime":
118 DO l = 1, lmdep
119 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
120 call handle_err("NF90_GET_VAR", ierr)
121
122 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
123 CALL inter_barxy(dlon, dlat(:jmdep -1), LOG(champ), rlonu(:iim), &
124 rlatv, champtime(:, :, l))
125 champtime(:, :, l) = EXP(champtime(:, :, l))
126 where (nint(mask(:iim, :)) /= 1) champtime(:, :, l) = 0.001
127 end do
128
129 call NF95_CLOSE(ncid)
130
131 DEALLOCATE(dlon, dlat, champ, dlon_ini, dlat_ini)
132 allocate(yder(lmdep))
133
134 ! Interpolate monthly values to daily values, at each horizontal position:
135 DO j = 1, jjm + 1
136 DO i = 1, iim
137 yder(:) = SPLINE(timeyear, champtime(i, j, :))
138 DO k = 1, 360
139 champan(i, j, k) = SPLINT(timeyear, champtime(i, j, :), yder, &
140 real(k-1))
141 ENDDO
142 ENDDO
143 ENDDO
144
145 deallocate(timeyear, champtime, yder)
146 champan(iim + 1, :, :) = champan(1, :, :)
147 forall (k = 1:360) phy_rug(:, k) = pack(champan(:, :, k), dyn_phy)
148
149 ! Process sea ice:
150
151 PRINT *, 'Processing sea ice...'
152 call NF95_OPEN('amipbc_sic_1x1.nc', NF90_NOWRITE, ncid)
153
154 call nf95_inq_varid(ncid, "longitude", varid)
155 call nf95_gw_var(ncid, varid, dlon_ini)
156 imdep = size(dlon_ini)
157
158 call nf95_inq_varid(ncid, "latitude", varid)
159 call nf95_gw_var(ncid, varid, dlat_ini)
160 jmdep = size(dlat_ini)
161
162 call nf95_inq_dimid(ncid, "time", dimid)
163 call NF95_INQuire_DIMension(ncid, dimid, len=lmdep)
164 print *, 'lmdep = ', lmdep
165 ! PM 28/02/2002 : nouvelle coordonnée temporelle, fichiers AMIP
166 ! pas en jours
167 ! Ici on suppose qu'on a 12 mois (de 30 jours).
168 IF (lmdep /= 12) STOP 'Unknown AMIP file: not 12 months?'
169
170 ALLOCATE(champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
171 ALLOCATE (dlon(imdep), dlat(jmdep))
172 call NF95_INQ_VARID(ncid, 'sicbcs', varid)
173 DO l = 1, lmdep
174 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
175 call handle_err("NF90_GET_VAR", ierr)
176
177 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
178 CALL inter_barxy (dlon, dlat(:jmdep -1), champ, rlonu(:iim), rlatv, &
179 champtime(:, :, l))
180 ENDDO
181
182 call NF95_CLOSE(ncid)
183
184 DEALLOCATE(dlon, dlat, champ, dlon_ini, dlat_ini)
185 PRINT *, 'Interpolation temporelle'
186 allocate(yder(lmdep))
187
188 DO j = 1, jjm + 1
189 DO i = 1, iim
190 yder(:) = SPLINE(tmidmonth, champtime(i, j, :))
191 DO k = 1, 360
192 champan(i, j, k) = SPLINT(tmidmonth, champtime(i, j, :), yder, &
193 real(k-1))
194 ENDDO
195 ENDDO
196 ENDDO
197
198 deallocate(champtime, yder)
199
200 ! Convert from percentage to normal fraction and keep sea ice
201 ! between 0 and 1:
202 champan(:iim, :, :) = max(0., (min(1., (champan(:iim, :, :) / 100.))))
203 champan(iim + 1, :, :) = champan(1, :, :)
204
205 DO k = 1, 360
206 phy_ice(:) = pack(champan(:, :, k), dyn_phy)
207
208 ! (utilisation de la sous-maille fractionnelle tandis que l'ancien
209 ! codage utilisait l'indicateur du sol (0, 1, 2, 3))
210 ! PB en attendant de mettre fraction de terre
211 WHERE(phy_ice(:) < EPSFRA) phy_ice(:) = 0.
212
213 pctsrf_t(:, is_ter, k) = pctsrf(:, is_ter)
214 pctsrf_t(:, is_lic, k) = pctsrf(:, is_lic)
215 pctsrf_t(:, is_sic, k) = max(phy_ice(:) - pctsrf_t(:, is_lic, k), 0.)
216 ! Il y a des cas où il y a de la glace dans landiceref et
217 ! pas dans AMIP
218 WHERE( 1. - zmasq(:) < EPSFRA)
219 pctsrf_t(:, is_sic, k) = 0.
220 pctsrf_t(:, is_oce, k) = 0.
221 elsewhere
222 where (pctsrf_t(:, is_sic, k) >= 1 - zmasq(:))
223 pctsrf_t(:, is_sic, k) = 1. - zmasq(:)
224 pctsrf_t(:, is_oce, k) = 0.
225 ELSEwhere
226 pctsrf_t(:, is_oce, k) = 1. - zmasq(:) - pctsrf_t(:, is_sic, k)
227 where (pctsrf_t(:, is_oce, k) < EPSFRA)
228 pctsrf_t(:, is_oce, k) = 0.
229 pctsrf_t(:, is_sic, k) = 1 - zmasq(:)
230 end where
231 end where
232 end where
233
234 DO i = 1, klon
235 if (pctsrf_t(i, is_oce, k) < 0.) then
236 print *, 'Problème sous maille : pctsrf_t(', i, &
237 ', is_oce, ', k, ') = ', pctsrf_t(i, is_oce, k)
238 ENDIF
239 IF (abs(pctsrf_t(i, is_ter, k) + pctsrf_t(i, is_lic, k) &
240 + pctsrf_t(i, is_oce, k) + pctsrf_t(i, is_sic, k) - 1.) &
241 > EPSFRA) THEN
242 print *, 'Problème sous surface :'
243 print *, "pctsrf_t(", i, ", :, ", k, ") = ", &
244 pctsrf_t(i, :, k)
245 print *, "phy_ice(", i, ") = ", phy_ice(i)
246 ENDIF
247 END DO
248 ENDDO
249
250 PRINT *, 'Traitement de la sst'
251 call NF95_OPEN('amipbc_sst_1x1.nc', NF90_NOWRITE, ncid)
252
253 call nf95_inq_varid(ncid, "longitude", varid)
254 call nf95_gw_var(ncid, varid, dlon_ini)
255 imdep = size(dlon_ini)
256
257 call nf95_inq_varid(ncid, "latitude", varid)
258 call nf95_gw_var(ncid, varid, dlat_ini)
259 jmdep = size(dlat_ini)
260
261 call nf95_inq_dimid(ncid, "time", dimid)
262 call NF95_INQuire_DIMension(ncid, dimid, len=lmdep)
263 print *, 'lmdep = ', lmdep
264 !PM28/02/2002 : nouvelle coord temporelle fichiers AMIP pas en jours
265 ! Ici on suppose qu'on a 12 mois (de 30 jours).
266 IF (lmdep /= 12) stop 'Unknown AMIP file: not 12 months?'
267
268 ALLOCATE( champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
269 IF( extrap ) THEN
270 ALLOCATE ( work(imdep, jmdep) )
271 ENDIF
272 ALLOCATE( dlon(imdep), dlat(jmdep) )
273 call NF95_INQ_VARID(ncid, 'tosbcs', varid)
274
275 DO l = 1, lmdep
276 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
277 call handle_err("NF90_GET_VAR", ierr)
278
279 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
280 IF ( extrap ) THEN
281 CALL extrapol(champ, imdep, jmdep, 999999., .TRUE., .TRUE., 2, work)
282 ENDIF
283
284 CALL inter_barxy (dlon, dlat(:jmdep -1), champ, rlonu(:iim), rlatv, &
285 champtime(:, :, l) )
286 ENDDO
287
288 call NF95_CLOSE(ncid)
289
290 DEALLOCATE(dlon, dlat, champ, dlon_ini, dlat_ini)
291 allocate(yder(lmdep))
292
293 ! interpolation temporelle
294 DO j = 1, jjm + 1
295 DO i = 1, iim
296 yder(:) = SPLINE(tmidmonth, champtime(i, j, :))
297 DO k = 1, 360
298 champan(i, j, k) = SPLINT(tmidmonth, champtime(i, j, :), yder, &
299 real(k-1))
300 ENDDO
301 ENDDO
302 ENDDO
303
304 deallocate(champtime, yder)
305 champan(iim + 1, :, :) = champan(1, :, :)
306
307 !IM14/03/2002 : SST amipbc greater then 271.38
308 PRINT *, 'SUB. limit_netcdf.F IM : SST Amipbc >= 271.38 '
309 DO k = 1, 360
310 DO j = 1, jjm + 1
311 DO i = 1, iim
312 champan(i, j, k) = amax1(champan(i, j, k), 271.38)
313 ENDDO
314 champan(iim + 1, j, k) = champan(1, j, k)
315 ENDDO
316 ENDDO
317 forall (k = 1:360) phy_sst(:, k) = pack(champan(:, :, k), dyn_phy)
318
319 ! Traitement de l'albedo
320
321 PRINT *, 'Traitement de l albedo'
322 call NF95_OPEN('Albedo.nc', NF90_NOWRITE, ncid)
323
324 call nf95_inq_varid(ncid, "longitude", varid)
325 call nf95_gw_var(ncid, varid, dlon_ini)
326 imdep = size(dlon_ini)
327
328 call nf95_inq_varid(ncid, "latitude", varid)
329 call nf95_gw_var(ncid, varid, dlat_ini)
330 jmdep = size(dlat_ini)
331
332 call nf95_inq_varid(ncid, "temps", varid)
333 call nf95_gw_var(ncid, varid, timeyear)
334 lmdep = size(timeyear)
335
336 ALLOCATE ( champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
337 ALLOCATE ( dlon(imdep), dlat(jmdep) )
338 call NF95_INQ_VARID(ncid, 'ALBEDO', varid)
339
340 DO l = 1, lmdep
341 PRINT *, 'Lecture temporelle et int. horizontale ', l, timeyear(l)
342 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
343 call handle_err("NF90_GET_VAR", ierr)
344
345 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
346 CALL inter_barxy(dlon, dlat(:jmdep-1), champ, rlonu(:iim), rlatv, &
347 champtime(:, :, l) )
348 ENDDO
349
350 call NF95_CLOSE(ncid)
351
352 deallocate(dlon_ini, dlat_ini)
353 allocate(yder(lmdep))
354
355 ! interpolation temporelle
356 DO j = 1, jjm + 1
357 DO i = 1, iim
358 yder(:) = SPLINE(timeyear, champtime(i, j, :))
359 DO k = 1, 360
360 champan(i, j, k) = SPLINT(timeyear, champtime(i, j, :), yder, &
361 real(k-1))
362 ENDDO
363 ENDDO
364 ENDDO
365 deallocate(timeyear)
366
367 champan(iim + 1, :, :) = champan(1, :, :)
368 forall (k = 1:360) phy_alb(:, k) = pack(champan(:, :, k), dyn_phy)
369
370 DO k = 1, 360
371 DO i = 1, klon
372 phy_bil(i, k) = 0.0
373 ENDDO
374 ENDDO
375
376 PRINT *, 'Ecriture du fichier limit'
377
378 call NF95_CREATE("limit.nc", NF90_CLOBBER, nid)
379
380 ierr = NF90_PUT_ATT(nid, NF90_GLOBAL, "title", &
381 "Fichier conditions aux limites")
382 call NF95_DEF_DIM (nid, "points_physiques", klon, ndim)
383 call NF95_DEF_DIM (nid, "time", NF90_UNLIMITED, ntim)
384
385 dims(1) = ndim
386 dims(2) = ntim
387
388 ierr = NF90_DEF_VAR (nid, "TEMPS", NF90_FLOAT, ntim, id_tim)
389 ierr = NF90_PUT_ATT (nid, id_tim, "title", &
390 "Jour dans l annee")
391 ierr = NF90_DEF_VAR (nid, "FOCE", NF90_FLOAT, dims, id_FOCE)
392 ierr = NF90_PUT_ATT (nid, id_FOCE, "title", &
393 "Fraction ocean")
394
395 ierr = NF90_DEF_VAR (nid, "FSIC", NF90_FLOAT, dims, id_FSIC)
396 ierr = NF90_PUT_ATT (nid, id_FSIC, "title", &
397 "Fraction glace de mer")
398
399 ierr = NF90_DEF_VAR (nid, "FTER", NF90_FLOAT, dims, id_FTER)
400 ierr = NF90_PUT_ATT (nid, id_FTER, "title", &
401 "Fraction terre")
402
403 ierr = NF90_DEF_VAR (nid, "FLIC", NF90_FLOAT, dims, id_FLIC)
404 ierr = NF90_PUT_ATT (nid, id_FLIC, "title", &
405 "Fraction land ice")
406
407 ierr = NF90_DEF_VAR (nid, "SST", NF90_FLOAT, dims, id_SST)
408 ierr = NF90_PUT_ATT (nid, id_SST, "title", &
409 "Temperature superficielle de la mer")
410 ierr = NF90_DEF_VAR (nid, "BILS", NF90_FLOAT, dims, id_BILS)
411 ierr = NF90_PUT_ATT (nid, id_BILS, "title", &
412 "Reference flux de chaleur au sol")
413 ierr = NF90_DEF_VAR (nid, "ALB", NF90_FLOAT, dims, id_ALB)
414 ierr = NF90_PUT_ATT (nid, id_ALB, "title", &
415 "Albedo a la surface")
416 ierr = NF90_DEF_VAR (nid, "RUG", NF90_FLOAT, dims, id_RUG)
417 ierr = NF90_PUT_ATT (nid, id_RUG, "title", &
418 "Rugosite")
419
420 call NF95_ENDDEF(nid)
421
422 DO k = 1, 360
423 debut(1) = 1
424 debut(2) = k
425
426 ierr = NF90_PUT_VAR(nid, id_tim, FLOAT(k), (/k/))
427 ierr = NF90_PUT_VAR(nid, id_FOCE, pctsrf_t(:, is_oce, k), debut)
428 ierr = NF90_PUT_VAR (nid, id_FSIC, pctsrf_t(:, is_sic, k), debut)
429 ierr = NF90_PUT_VAR (nid, id_FTER, pctsrf_t(:, is_ter, k), debut)
430 ierr = NF90_PUT_VAR (nid, id_FLIC, pctsrf_t(:, is_lic, k), debut)
431 ierr = NF90_PUT_VAR (nid, id_SST, phy_sst(:, k), debut)
432 ierr = NF90_PUT_VAR (nid, id_BILS, phy_bil(:, k), debut)
433 ierr = NF90_PUT_VAR (nid, id_ALB, phy_alb(:, k), debut)
434 ierr = NF90_PUT_VAR (nid, id_RUG, phy_rug(:, k), debut)
435 ENDDO
436
437 call NF95_CLOSE(nid)
438
439 END SUBROUTINE limit
440
441 end module limit_mod

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