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Revision 3 - (show annotations)
Wed Feb 27 13:16:39 2008 UTC (16 years, 2 months ago) by guez
Original Path: trunk/libf/dyn3d/limit.f90
File size: 13666 byte(s)
Initial import
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: masque
25 use conf_dat2d_m, only: conf_dat2d
26 use inter_barxy_m, only: inter_barxy
27 use interpolation, only: spline, splint
28 use grid_change, only: dyn_phy
29
30 use netcdf95, only: handle_err, coordin, &
31 NF90_CLOBBER, NF95_CLOSE, NF95_DEF_DIM, nf90_def_var, nf95_enddef, &
32 NF90_FLOAT, NF90_GET_VAR, NF90_GLOBAL, NF90_NOWRITE, NF90_PUT_ATT, &
33 NF90_PUT_VAR, NF90_UNLIMITED, &
34 NF95_CREATE, nf95_inq_dimid, nf95_inquire_dimension, nf95_inq_varid, &
35 nf95_open
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 dlon_ini => coordin(ncid, "longitude")
99 imdep = size(dlon_ini)
100
101 dlat_ini => coordin(ncid, "latitude")
102 jmdep = size(dlat_ini)
103
104 timeyear => coordin(ncid, "temps")
105 lmdep = size(timeyear)
106
107 ALLOCATE(champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
108 allocate(dlon(imdep), dlat(jmdep))
109 call NF95_INQ_VARID(ncid, 'RUGOS', varid)
110
111 ! Compute "champtime":
112 DO l = 1, lmdep
113 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
114 call handle_err("NF90_GET_VAR", ierr)
115
116 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
117 CALL inter_barxy(dlon, dlat(:jmdep -1), LOG(champ), rlonu(:iim), &
118 rlatv, champtime(:, :, l))
119 champtime(:, :, l) = EXP(champtime(:, :, l))
120 where (nint(masque(:iim, :)) /= 1) champtime(:, :, l) = 0.001
121 end do
122
123 call NF95_CLOSE(ncid)
124
125 DEALLOCATE(dlon, dlat, champ, dlon_ini, dlat_ini)
126 allocate(yder(lmdep))
127
128 DO j = 1, jjm + 1
129 DO i = 1, iim
130 yder(:) = SPLINE(timeyear, champtime(i, j, :))
131 DO k = 1, 360
132 champan(i, j, k) = SPLINT(timeyear, champtime(i, j, :), yder, &
133 real(k-1))
134 ENDDO
135 ENDDO
136 ENDDO
137
138 deallocate(timeyear, champtime, yder)
139 champan(iim + 1, :, :) = champan(1, :, :)
140 forall (k = 1:360) phy_rug(:, k) = pack(champan(:, :, k), dyn_phy)
141
142 ! Process sea ice:
143
144 PRINT *, 'Processing sea ice...'
145 call NF95_OPEN('amipbc_sic_1x1.nc', NF90_NOWRITE, ncid)
146
147 dlon_ini => coordin(ncid, "longitude")
148 imdep = size(dlon_ini)
149
150 dlat_ini => coordin(ncid, "latitude")
151 jmdep = size(dlat_ini)
152
153 call nf95_inq_dimid(ncid, "time", dimid)
154 call NF95_INQuire_DIMension(ncid, dimid, len=lmdep)
155 print *, 'lmdep = ', lmdep
156 ! PM 28/02/2002 : nouvelle coordonnée temporelle, fichiers AMIP
157 ! pas en jours
158 ! Ici on suppose qu'on a 12 mois (de 30 jours).
159 IF (lmdep /= 12) STOP 'Unknown AMIP file: not 12 months?'
160
161 ALLOCATE(champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
162 ALLOCATE (dlon(imdep), dlat(jmdep))
163 call NF95_INQ_VARID(ncid, 'sicbcs', varid)
164 DO l = 1, lmdep
165 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
166 call handle_err("NF90_GET_VAR", ierr)
167
168 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
169 CALL inter_barxy (dlon, dlat(:jmdep -1), champ, rlonu(:iim), rlatv, &
170 champtime(:, :, l))
171 ENDDO
172
173 call NF95_CLOSE(ncid)
174
175 DEALLOCATE(dlon, dlat, champ, dlon_ini, dlat_ini)
176 PRINT *, 'Interpolation temporelle'
177 allocate(yder(lmdep))
178
179 DO j = 1, jjm + 1
180 DO i = 1, iim
181 yder(:) = SPLINE(tmidmonth, champtime(i, j, :))
182 DO k = 1, 360
183 champan(i, j, k) = SPLINT(tmidmonth, champtime(i, j, :), yder, &
184 real(k-1))
185 ENDDO
186 ENDDO
187 ENDDO
188
189 deallocate(champtime, yder)
190
191 ! Convert from percentage to normal fraction and keep sea ice
192 ! between 0 and 1:
193 champan(:iim, :, :) = max(0., (min(1., (champan(:iim, :, :) / 100.))))
194 champan(iim + 1, :, :) = champan(1, :, :)
195
196 DO k = 1, 360
197 phy_ice(:) = pack(champan(:, :, k), dyn_phy)
198
199 ! (utilisation de la sous-maille fractionnelle tandis que l'ancien
200 ! codage utilisait l'indicateur du sol (0, 1, 2, 3))
201 ! PB en attendant de mettre fraction de terre
202 WHERE(phy_ice(:) < EPSFRA) phy_ice(:) = 0.
203
204 pctsrf_t(:, is_ter, k) = pctsrf(:, is_ter)
205 pctsrf_t(:, is_lic, k) = pctsrf(:, is_lic)
206 pctsrf_t(:, is_sic, k) = max(phy_ice(:) - pctsrf_t(:, is_lic, k), 0.)
207 ! Il y a des cas où il y a de la glace dans landiceref et
208 ! pas dans AMIP
209 WHERE( 1. - zmasq(:) < EPSFRA)
210 pctsrf_t(:, is_sic, k) = 0.
211 pctsrf_t(:, is_oce, k) = 0.
212 elsewhere
213 where (pctsrf_t(:, is_sic, k) >= 1 - zmasq(:))
214 pctsrf_t(:, is_sic, k) = 1. - zmasq(:)
215 pctsrf_t(:, is_oce, k) = 0.
216 ELSEwhere
217 pctsrf_t(:, is_oce, k) = 1. - zmasq(:) - pctsrf_t(:, is_sic, k)
218 where (pctsrf_t(:, is_oce, k) < EPSFRA)
219 pctsrf_t(:, is_oce, k) = 0.
220 pctsrf_t(:, is_sic, k) = 1 - zmasq(:)
221 end where
222 end where
223 end where
224
225 DO i = 1, klon
226 if (pctsrf_t(i, is_oce, k) < 0.) then
227 print *, 'Problème sous maille : pctsrf_t(', i, &
228 ', is_oce, ', k, ') = ', pctsrf_t(i, is_oce, k)
229 ENDIF
230 IF (abs(pctsrf_t(i, is_ter, k) + pctsrf_t(i, is_lic, k) &
231 + pctsrf_t(i, is_oce, k) + pctsrf_t(i, is_sic, k) - 1.) &
232 > EPSFRA) THEN
233 print *, 'Problème sous surface :'
234 print *, "pctsrf_t(", i, ", :, ", k, ") = ", &
235 pctsrf_t(i, :, k)
236 print *, "phy_ice(", i, ") = ", phy_ice(i)
237 ENDIF
238 END DO
239 ENDDO
240
241 PRINT *, 'Traitement de la sst'
242 call NF95_OPEN('amipbc_sst_1x1.nc', NF90_NOWRITE, ncid)
243
244 dlon_ini => coordin(ncid, "longitude")
245 imdep = size(dlon_ini)
246
247 dlat_ini => coordin(ncid, "latitude")
248 jmdep = size(dlat_ini)
249
250 call nf95_inq_dimid(ncid, "time", dimid)
251 call NF95_INQuire_DIMension(ncid, dimid, len=lmdep)
252 print *, 'lmdep = ', lmdep
253 !PM28/02/2002 : nouvelle coord temporelle fichiers AMIP pas en jours
254 ! Ici on suppose qu'on a 12 mois (de 30 jours).
255 IF (lmdep /= 12) stop 'Unknown AMIP file: not 12 months?'
256
257 ALLOCATE( champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
258 IF( extrap ) THEN
259 ALLOCATE ( work(imdep, jmdep) )
260 ENDIF
261 ALLOCATE( dlon(imdep), dlat(jmdep) )
262 call NF95_INQ_VARID(ncid, 'tosbcs', varid)
263
264 DO l = 1, lmdep
265 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
266 call handle_err("NF90_GET_VAR", ierr)
267
268 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
269 IF ( extrap ) THEN
270 CALL extrapol(champ, imdep, jmdep, 999999., .TRUE., .TRUE., 2, work)
271 ENDIF
272
273 CALL inter_barxy (dlon, dlat(:jmdep -1), champ, rlonu(:iim), rlatv, &
274 champtime(:, :, l) )
275 ENDDO
276
277 call NF95_CLOSE(ncid)
278
279 DEALLOCATE(dlon, dlat, champ, dlon_ini, dlat_ini)
280 allocate(yder(lmdep))
281
282 ! interpolation temporelle
283 DO j = 1, jjm + 1
284 DO i = 1, iim
285 yder(:) = SPLINE(tmidmonth, champtime(i, j, :))
286 DO k = 1, 360
287 champan(i, j, k) = SPLINT(tmidmonth, champtime(i, j, :), yder, &
288 real(k-1))
289 ENDDO
290 ENDDO
291 ENDDO
292
293 deallocate(champtime, yder)
294 champan(iim + 1, :, :) = champan(1, :, :)
295
296 !IM14/03/2002 : SST amipbc greater then 271.38
297 PRINT *, 'SUB. limit_netcdf.F IM : SST Amipbc >= 271.38 '
298 DO k = 1, 360
299 DO j = 1, jjm + 1
300 DO i = 1, iim
301 champan(i, j, k) = amax1(champan(i, j, k), 271.38)
302 ENDDO
303 champan(iim + 1, j, k) = champan(1, j, k)
304 ENDDO
305 ENDDO
306 forall (k = 1:360) phy_sst(:, k) = pack(champan(:, :, k), dyn_phy)
307
308 ! Traitement de l'albedo
309
310 PRINT *, 'Traitement de l albedo'
311 call NF95_OPEN('Albedo.nc', NF90_NOWRITE, ncid)
312
313 dlon_ini => coordin(ncid, "longitude")
314 imdep = size(dlon_ini)
315
316 dlat_ini => coordin(ncid, "latitude")
317 jmdep = size(dlat_ini)
318
319 timeyear => coordin(ncid, "temps")
320 lmdep = size(timeyear)
321
322 ALLOCATE ( champ(imdep, jmdep), champtime(iim, jjm + 1, lmdep))
323 ALLOCATE ( dlon(imdep), dlat(jmdep) )
324 call NF95_INQ_VARID(ncid, 'ALBEDO', varid)
325
326 DO l = 1, lmdep
327 PRINT *, 'Lecture temporelle et int. horizontale ', l, timeyear(l)
328 ierr = NF90_GET_VAR(ncid, varid, champ, start=(/1, 1, l/))
329 call handle_err("NF90_GET_VAR", ierr)
330
331 CALL conf_dat2d(dlon_ini, dlat_ini, dlon, dlat, champ)
332 CALL inter_barxy(dlon, dlat(:jmdep-1), champ, rlonu(:iim), rlatv, &
333 champtime(:, :, l) )
334 ENDDO
335
336 call NF95_CLOSE(ncid)
337
338 deallocate(dlon_ini, dlat_ini)
339 allocate(yder(lmdep))
340
341 ! interpolation temporelle
342 DO j = 1, jjm + 1
343 DO i = 1, iim
344 yder(:) = SPLINE(timeyear, champtime(i, j, :))
345 DO k = 1, 360
346 champan(i, j, k) = SPLINT(timeyear, champtime(i, j, :), yder, &
347 real(k-1))
348 ENDDO
349 ENDDO
350 ENDDO
351 deallocate(timeyear)
352
353 champan(iim + 1, :, :) = champan(1, :, :)
354 forall (k = 1:360) phy_alb(:, k) = pack(champan(:, :, k), dyn_phy)
355
356 DO k = 1, 360
357 DO i = 1, klon
358 phy_bil(i, k) = 0.0
359 ENDDO
360 ENDDO
361
362 PRINT *, 'Ecriture du fichier limit'
363
364 call NF95_CREATE("limit.nc", NF90_CLOBBER, nid)
365
366 ierr = NF90_PUT_ATT(nid, NF90_GLOBAL, "title", &
367 "Fichier conditions aux limites")
368 call NF95_DEF_DIM (nid, "points_physiques", klon, ndim)
369 call NF95_DEF_DIM (nid, "time", NF90_UNLIMITED, ntim)
370
371 dims(1) = ndim
372 dims(2) = ntim
373
374 ierr = NF90_DEF_VAR (nid, "TEMPS", NF90_FLOAT, ntim, id_tim)
375 ierr = NF90_PUT_ATT (nid, id_tim, "title", &
376 "Jour dans l annee")
377 ierr = NF90_DEF_VAR (nid, "FOCE", NF90_FLOAT, dims, id_FOCE)
378 ierr = NF90_PUT_ATT (nid, id_FOCE, "title", &
379 "Fraction ocean")
380
381 ierr = NF90_DEF_VAR (nid, "FSIC", NF90_FLOAT, dims, id_FSIC)
382 ierr = NF90_PUT_ATT (nid, id_FSIC, "title", &
383 "Fraction glace de mer")
384
385 ierr = NF90_DEF_VAR (nid, "FTER", NF90_FLOAT, dims, id_FTER)
386 ierr = NF90_PUT_ATT (nid, id_FTER, "title", &
387 "Fraction terre")
388
389 ierr = NF90_DEF_VAR (nid, "FLIC", NF90_FLOAT, dims, id_FLIC)
390 ierr = NF90_PUT_ATT (nid, id_FLIC, "title", &
391 "Fraction land ice")
392
393 ierr = NF90_DEF_VAR (nid, "SST", NF90_FLOAT, dims, id_SST)
394 ierr = NF90_PUT_ATT (nid, id_SST, "title", &
395 "Temperature superficielle de la mer")
396 ierr = NF90_DEF_VAR (nid, "BILS", NF90_FLOAT, dims, id_BILS)
397 ierr = NF90_PUT_ATT (nid, id_BILS, "title", &
398 "Reference flux de chaleur au sol")
399 ierr = NF90_DEF_VAR (nid, "ALB", NF90_FLOAT, dims, id_ALB)
400 ierr = NF90_PUT_ATT (nid, id_ALB, "title", &
401 "Albedo a la surface")
402 ierr = NF90_DEF_VAR (nid, "RUG", NF90_FLOAT, dims, id_RUG)
403 ierr = NF90_PUT_ATT (nid, id_RUG, "title", &
404 "Rugosite")
405
406 call NF95_ENDDEF(nid)
407
408 DO k = 1, 360
409 debut(1) = 1
410 debut(2) = k
411
412 ierr = NF90_PUT_VAR(nid, id_tim, FLOAT(k), (/k/))
413 ierr = NF90_PUT_VAR(nid, id_FOCE, pctsrf_t(:, is_oce, k), debut)
414 ierr = NF90_PUT_VAR (nid, id_FSIC, pctsrf_t(:, is_sic, k), debut)
415 ierr = NF90_PUT_VAR (nid, id_FTER, pctsrf_t(:, is_ter, k), debut)
416 ierr = NF90_PUT_VAR (nid, id_FLIC, pctsrf_t(:, is_lic, k), debut)
417 ierr = NF90_PUT_VAR (nid, id_SST, phy_sst(:, k), debut)
418 ierr = NF90_PUT_VAR (nid, id_BILS, phy_bil(:, k), debut)
419 ierr = NF90_PUT_VAR (nid, id_ALB, phy_alb(:, k), debut)
420 ierr = NF90_PUT_VAR (nid, id_RUG, phy_rug(:, k), debut)
421 ENDDO
422
423 call NF95_CLOSE(nid)
424
425 END SUBROUTINE limit
426
427 end module limit_mod

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