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etat0dyn_netcdf.F90 @ 5456

Last change on this file since 5456 was 5285, checked in by abarral, 2 months ago
As discussed internally, remove generic ONLY: ... for new _mod_h modules
File size: 21.9 KB

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1	MODULE etat0dyn
2	!
3	!*******************************************************************************
4	! Purpose: Create dynamical initial state using atmospheric fields from a
5	! database of atmospheric to initialize the model.
6	!-------------------------------------------------------------------------------
7	! Comments:
8	!
9	! * This module is designed to work for Earth (and with ioipsl)
10	!
11	! * etat0dyn_netcdf routine can access to NetCDF data through the following
12	! routine (to be called after restget):
13	! CALL startget_dyn3d(varname, lon_in, lat_in, pls, workvar,&
14	! champ, lon_in2, lat_in2)
15	!
16	! * Variables should have the following names in the NetCDF files:
17	! 'U' : East ward wind (in "ECDYN.nc")
18	! 'V' : Northward wind (in "ECDYN.nc")
19	! 'TEMP' : Temperature (in "ECDYN.nc")
20	! 'R' : Relative humidity (in "ECDYN.nc")
21	! 'RELIEF' : High resolution orography (in "Relief.nc")
22	!
23	! * The land mask and corresponding weights can be:
24	! 1) already known (in particular if etat0dyn has been called before) ;
25	! in this case, ANY(masque(:,:)/=-99999.) = .TRUE.
26	! 2) computed using the ocean mask from the ocean model (to ensure ocean
27	! fractions are the same for atmosphere and ocean) for coupled runs.
28	! File name: "o2a.nc" ; variable name: "OceMask"
29	! 3) computed from topography file "Relief.nc" for forced runs.
30	!
31	! * There is a big mess with the longitude size. Should it be iml or iml+1 ?
32	! I have chosen to use the iml+1 as an argument to this routine and we declare
33	! internaly smaller fields when needed. This needs to be cleared once and for
34	! all in LMDZ. A convention is required.
35	!-------------------------------------------------------------------------------
36	USE ioipsl, ONLY: flininfo, flinopen, flinget, flinclo, histclo
37	USE assert_eq_m, ONLY: assert_eq
38	USE comconst_mod, ONLY: pi, cpp, kappa
39	USE comvert_mod, ONLY: ap, bp, preff, pressure_exner
40	USE temps_mod, ONLY: annee_ref, day_ref, itau_dyn, itau_phy, start_time
41	USE strings_mod, ONLY: strLower
42
43	USE dimensions_mod, ONLY: iim, jjm, llm, ndm
44	USE paramet_mod_h
45	USE comdissnew_mod_h
46	USE comgeom2_mod_h
47	USE iniprint_mod_h
48	IMPLICIT NONE
49
50	PRIVATE
51	PUBLIC :: etat0dyn_netcdf
52
53
54
55	REAL, SAVE :: deg2rad
56	INTEGER, SAVE :: iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn
57	REAL, ALLOCATABLE, SAVE :: lon_dyn(:,:), lat_dyn(:,:), levdyn_ini(:)
58	CHARACTER(LEN=120), PARAMETER :: dynfname='ECDYN.nc'
59
60	CONTAINS
61
62	!-------------------------------------------------------------------------------
63	!
64	SUBROUTINE etat0dyn_netcdf(masque, phis)
65	!
66	!-------------------------------------------------------------------------------
67	! Purpose: Create dynamical initial states.
68	!-------------------------------------------------------------------------------
69	! Notes: 1) This routine is designed to work for Earth
70	! 2) If masque(:,:)/=-99999., masque and phis are already known.
71	! Otherwise: compute it.
72	!-------------------------------------------------------------------------------
73	USE control_mod
74	USE regr_lat_time_coefoz_m, ONLY: regr_lat_time_coefoz
75	USE regr_pr_o3_m, ONLY: regr_pr_o3
76	USE press_coefoz_m, ONLY: press_coefoz
77	USE exner_hyb_m, ONLY: exner_hyb
78	USE exner_milieu_m, ONLY: exner_milieu
79	USE infotrac, ONLY: nqtot, tracers
80	USE filtreg_mod
81	USE lmdz_cppkeys_wrapper, ONLY: CPPKEY_INCA
82	IMPLICIT NONE
83	!-------------------------------------------------------------------------------
84	! Arguments:
85	REAL, INTENT(INOUT) :: masque(iip1,jjp1) !--- Land-ocean mask
86	REAL, INTENT(INOUT) :: phis (iip1,jjp1) !--- Ground geopotential
87	!-------------------------------------------------------------------------------
88	! Local variables:
89	CHARACTER(LEN=256) :: modname, fmt
90	INTEGER :: i, j, l, ji, itau, iday, iq
91	REAL :: xpn, xps, time, phystep
92	REAL, DIMENSION(iip1,jjp1) :: psol
93	REAL, DIMENSION(iip1,jjp1,llm+1) :: p3d
94	REAL, DIMENSION(iip1,jjp1,llm) :: uvent, t3d, tpot, qsat, qd
95	REAL, DIMENSION(iip1,jjp1,llm) :: pk, pls, y, masse
96	REAL, DIMENSION(iip1,jjm ,llm) :: vvent
97	REAL, DIMENSION(ip1jm ,llm) :: pbarv
98	REAL, DIMENSION(ip1jmp1 ,llm) :: pbaru, phi, w
99	REAL, DIMENSION(ip1jmp1) :: pks
100	REAL, DIMENSION(iim) :: xppn, xpps
101	REAL, ALLOCATABLE :: q3d(:,:,:,:)
102	!-------------------------------------------------------------------------------
103	modname='etat0dyn_netcdf'
104
105	deg2rad = pi/180.0
106	y(:,:,:)=0 !ym warning unitialized variable
107
108	! Compute psol AND tsol, knowing phis.
109	!*******************************************************************************
110	CALL start_init_dyn(rlonv, rlatu, rlonu, rlatv, phis, psol)
111
112	! Mid-levels pressure computation
113	!*******************************************************************************
114	CALL pression(ip1jmp1, ap, bp, psol, p3d) !--- Update p3d
115	IF(pressure_exner) THEN !--- Update pk, pks
116	CALL exner_hyb (ip1jmp1,psol,p3d,pks,pk)
117	ELSE
118	CALL exner_milieu(ip1jmp1,psol,p3d,pks,pk)
119	END IF
120	pls(:,:,:)=preff(pk(:,:,:)/cpp)*(1./kappa) !--- Update pls
121
122	! Update uvent, vvent, t3d and tpot
123	!*******************************************************************************
124	uvent(:,:,:) = 0.0 ; vvent(:,:,:) = 0.0 ; t3d (:,:,:) = 0.0
125	CALL startget_dyn3d('u' ,rlonu,rlatu,pls,y ,uvent,rlonv,rlatv)
126	CALL startget_dyn3d('v' ,rlonv,rlatv,pls(:,:jjm,:),y(:,:jjm,:),vvent, &
127	& rlonu,rlatu(:jjm))
128	CALL startget_dyn3d('t' ,rlonv,rlatu,pls,y ,t3d ,rlonu,rlatv)
129	tpot(:,:,:)=t3d(:,:,:)
130	CALL startget_dyn3d('tpot',rlonv,rlatu,pls,pk,tpot,rlonu,rlatv)
131
132	WRITE(lunout,*) 'T3D min,max:',MINVAL(t3d(:,:,:)),MAXVAL(t3d(:,:,:))
133	WRITE(lunout,*) 'PLS min,max:',MINVAL(pls(:,:,:)),MAXVAL(pls(:,:,:))
134
135	! Humidity at saturation computation
136	!*******************************************************************************
137	WRITE(lunout,*) 'avant q_sat'
138	CALL q_sat(llmjjp1iip1, t3d, pls, qsat)
139	WRITE(lunout,*) 'apres q_sat'
140	WRITE(lunout,*) 'QSAT min,max:',MINVAL(qsat(:,:,:)),MAXVAL(qsat(:,:,:))
141	! WRITE(lunout,*) 'QSAT :',qsat(10,20,:)
142	qd (:,:,:) = 0.0
143	CALL startget_dyn3d('q',rlonv,rlatu,pls,qsat,qd,rlonu,rlatv)
144	ALLOCATE(q3d(iip1,jjp1,llm,nqtot)); q3d(:,:,:,:)=0.0 ; q3d(:,:,:,1)=qd(:,:,:)
145	CALL flinclo(fid_dyn)
146
147	! Parameterization of ozone chemistry:
148	!*******************************************************************************
149	! Look for ozone tracer:
150	IF (.NOT. CPPKEY_INCA) THEN
151	DO iq=1,nqtot; IF(strLower(tracers(iq)%name)=="o3") EXIT; END DO
152	IF(iq/=nqtot+1) THEN
153	CALL regr_lat_time_coefoz
154	CALL press_coefoz
155	CALL regr_pr_o3(p3d, q3d(:,:,:,iq))
156	q3d(:,:,:,iq)=q3d(:,:,:,iq)*48./ 29. !--- Mole->mass fraction
157	END IF
158	END IF
159	q3d(iip1,:,:,:)=q3d(1,:,:,:)
160
161	! Writing
162	!*******************************************************************************
163	CALL inidissip(lstardis, nitergdiv, nitergrot, niterh, tetagdiv, tetagrot, &
164	tetatemp, vert_prof_dissip)
165	WRITE(lunout,*)'sortie inidissip'
166	itau=0
167	itau_dyn=0
168	itau_phy=0
169	iday=dayref+itau/day_step
170	time=FLOAT(itau-(iday-dayref)*day_step)/day_step
171	IF(time>1.) THEN
172	time=time-1
173	iday=iday+1
174	END IF
175	day_ref=dayref
176	annee_ref=anneeref
177	CALL geopot( ip1jmp1, tpot, pk, pks, phis, phi )
178	WRITE(lunout,*)'sortie geopot'
179	CALL caldyn0( itau, uvent, vvent, tpot, psol, masse, pk, phis, &
180	phi, w, pbaru, pbarv, time+iday-dayref)
181	WRITE(lunout,*)'sortie caldyn0'
182	start_time = 0.
183	#ifdef CPP_PARA
184	CALL dynredem0_loc( "start.nc", dayref, phis)
185	#else
186	CALL dynredem0( "start.nc", dayref, phis)
187	#endif
188	WRITE(lunout,*)'sortie dynredem0'
189	#ifdef CPP_PARA
190	CALL dynredem1_loc( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
191	#else
192	CALL dynredem1( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
193	#endif
194	WRITE(lunout,*)'sortie dynredem1'
195	CALL histclo()
196
197	END SUBROUTINE etat0dyn_netcdf
198	!
199	!-------------------------------------------------------------------------------
200
201
202	!-------------------------------------------------------------------------------
203	!
204	SUBROUTINE startget_dyn3d(var, lon_in, lat_in, pls, workvar,&
205	champ, lon_in2, lat_in2)
206	!-------------------------------------------------------------------------------
207	IMPLICIT NONE
208	!===============================================================================
209	! Purpose: Compute some quantities (u,v,t,q,tpot) using variables U,V,TEMP and R
210	! (3D fields) of file dynfname.
211	!-------------------------------------------------------------------------------
212	! Note: An input auxilliary field "workvar" has to be specified in two cases:
213	! * for "q": the saturated humidity.
214	! * for "tpot": the Exner function.
215	!===============================================================================
216	! Arguments:
217	CHARACTER(LEN=*), INTENT(IN) :: var
218	REAL, INTENT(IN) :: lon_in(:) ! dim (iml)
219	REAL, INTENT(IN) :: lat_in(:) ! dim (jml)
220	REAL, INTENT(IN) :: pls (:, :, :) ! dim (iml, jml, lml)
221	REAL, INTENT(IN) :: workvar(:, :, :) ! dim (iml, jml, lml)
222	REAL, INTENT(INOUT) :: champ (:, :, :) ! dim (iml, jml, lml)
223	REAL, INTENT(IN) :: lon_in2(:) ! dim (iml)
224	REAL, INTENT(IN) :: lat_in2(:) ! dim (jml2)
225	!-------------------------------------------------------------------------------
226	! Local variables:
227	CHARACTER(LEN=10) :: vname
228	CHARACTER(LEN=256) :: msg, modname="startget_dyn3d"
229	INTEGER :: iml, jml, jml2, lml, il
230	REAL :: xppn, xpps
231	!-------------------------------------------------------------------------------
232	iml=assert_eq([SIZE(lon_in),SIZE(pls,1),SIZE(workvar,1),SIZE(champ,1), &
233	& SIZE(lon_in2)], TRIM(modname)//" iml")
234	jml=assert_eq( SIZE(lat_in),SIZE(pls,2),SIZE(workvar,2),SIZE(champ,2), &
235	& TRIM(modname)//" jml")
236	lml=assert_eq( SIZE(pls,3),SIZE(workvar,3),SIZE(champ,3), &
237	& TRIM(modname)//" lml")
238	jml2=SIZE(lat_in2)
239
240	!--- CHECK IF THE FIELD IS KNOWN
241	SELECT CASE(var)
242	CASE('u'); vname='U'
243	CASE('v'); vname='V'
244	CASE('t'); vname='TEMP'
245	CASE('q'); vname='R'; msg='humidity as the saturated humidity'
246	CASE('tpot'); msg='potential temperature as the Exner function'
247	CASE DEFAULT; msg='No rule to extract variable '//TRIM(var)
248	CALL abort_gcm(modname,TRIM(msg)//' from any data set',1)
249	END SELECT
250
251	!--- CHECK IF SOMETHING IS MISSING
252	IF((var=='tpot'.OR.var=='q').AND.MINVAL(workvar)==MAXVAL(workvar)) THEN
253	msg='Could not compute '//TRIM(msg)//' is missing or constant.'
254	CALL abort_gcm(modname,TRIM(msg),1)
255	END IF
256
257	!--- INTERPOLATE 3D FIELD IF NEEDED
258	IF(var/='tpot') CALL start_inter_3d(TRIM(vname),lon_in,lat_in,lon_in2, &
259	lat_in2,pls,champ)
260
261	!--- COMPUTE THE REQUIRED FILED
262	SELECT CASE(var)
263	CASE('u'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cu(:,1:jml); END DO
264	champ(iml,:,:)=champ(1,:,:) !--- Eastward wind
265
266	CASE('v'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cv(:,1:jml); END DO
267	champ(iml,:,:)=champ(1,:,:) !--- Northward wind
268
269	CASE('tpot','q')
270	IF(var=='tpot') THEN; champ=champ*cpp/workvar !--- Potential temperature
271	ELSE; champ=champ.01workvar !--- Relative humidity
272	WHERE(champ<0.) champ=1.0E-10
273	END IF
274	DO il=1,lml
275	xppn = SUM(aire(:,1 )*champ(:,1 ,il))/apoln
276	xpps = SUM(aire(:,jml)*champ(:,jml,il))/apols
277	champ(:,1 ,il) = xppn
278	champ(:,jml,il) = xpps
279	END DO
280	END SELECT
281
282	END SUBROUTINE startget_dyn3d
283	!
284	!-------------------------------------------------------------------------------
285
286
287	!-------------------------------------------------------------------------------
288	!
289	SUBROUTINE start_init_dyn(lon_in,lat_in,lon_in2,lat_in2,zs,psol)
290	!
291	!-------------------------------------------------------------------------------
292	IMPLICIT NONE
293	!===============================================================================
294	! Purpose: Compute psol, knowing phis.
295	!===============================================================================
296	! Arguments:
297	REAL, INTENT(IN) :: lon_in (:), lat_in (:) ! dim (iml) (jml)
298	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
299	REAL, INTENT(IN) :: zs (:,:) ! dim (iml,jml)
300	REAL, INTENT(OUT) :: psol(:,:) ! dim (iml,jml)
301	!-------------------------------------------------------------------------------
302	! Local variables:
303	CHARACTER(LEN=256) :: modname='start_init_dyn'
304	REAL :: date, dt
305	INTEGER :: iml, jml, jml2, itau(1)
306	REAL, ALLOCATABLE :: lon_rad(:), lon_ini(:), var_ana(:,:)
307	REAL, ALLOCATABLE :: lat_rad(:), lat_ini(:)
308	REAL, ALLOCATABLE :: z(:,:), ps(:,:), ts(:,:)
309	!-------------------------------------------------------------------------------
310	iml=assert_eq(SIZE(lon_in),SIZE(zs,1),SIZE(psol,1),SIZE(lon_in2), &
311	& TRIM(modname)//" iml")
312	jml=assert_eq(SIZE(lat_in),SIZE(zs,2),SIZE(psol,2),TRIM(modname)//" jml")
313	jml2=SIZE(lat_in2)
314
315	WRITE(lunout,*) 'Opening the surface analysis'
316	CALL flininfo(dynfname, iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn)
317	WRITE(lunout,*) 'Values read: ', iml_dyn, jml_dyn, llm_dyn, ttm_dyn
318
319	ALLOCATE(lon_dyn(iml_dyn,jml_dyn), lat_dyn(iml_dyn,jml_dyn))
320	ALLOCATE(levdyn_ini(llm_dyn))
321	CALL flinopen(dynfname, .FALSE., iml_dyn, jml_dyn, llm_dyn, &
322	lon_dyn,lat_dyn,levdyn_ini,ttm_dyn,itau,date,dt,fid_dyn)
323
324	!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
325	ALLOCATE(lon_ini(iml_dyn),lat_ini(jml_dyn))
326	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
327	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
328
329	ALLOCATE(var_ana(iml_dyn,jml_dyn),lon_rad(iml_dyn),lat_rad(jml_dyn))
330	CALL get_var_dyn('Z',z) !--- SURFACE GEOPOTENTIAL
331	CALL get_var_dyn('SP',ps) !--- SURFACE PRESSURE
332	CALL get_var_dyn('ST',ts) !--- SURFACE TEMPERATURE
333	! CALL flinclo(fid_dyn)
334	DEALLOCATE(var_ana,lon_rad,lat_rad,lon_ini,lat_ini)
335
336	!--- PSOL IS COMPUTED IN PASCALS
337	psol(:iml-1,:) = ps(:iml-1,:)*(1.0+(z(:iml-1,:)-zs(:iml-1,:))/287.0 &
338	& /ts(:iml-1,:))
339	psol(iml,:)=psol(1,:)
340	DEALLOCATE(z,ps,ts)
341	psol(:,1 )=SUM(aire(1:iml-1,1 )*psol(1:iml-1,1 ))/apoln !--- NORTH POLE
342	psol(:,jml)=SUM(aire(1:iml-1,jml)*psol(1:iml-1,jml))/apols !--- SOUTH POLE
343
344	CONTAINS
345
346	!-------------------------------------------------------------------------------
347	!
348	SUBROUTINE get_var_dyn(title,field)
349	!
350	!-------------------------------------------------------------------------------
351	USE conf_dat_m, ONLY: conf_dat2d
352	IMPLICIT NONE
353	!-------------------------------------------------------------------------------
354	! Arguments:
355	CHARACTER(LEN=*), INTENT(IN) :: title
356	REAL, ALLOCATABLE, INTENT(INOUT) :: field(:,:)
357	!-------------------------------------------------------------------------------
358	! Local variables:
359	CHARACTER(LEN=256) :: msg
360	INTEGER :: tllm
361	!-------------------------------------------------------------------------------
362	SELECT CASE(title)
363	CASE('Z'); tllm=0; msg='geopotential'
364	CASE('SP'); tllm=0; msg='surface pressure'
365	CASE('ST'); tllm=llm_dyn; msg='temperature'
366	END SELECT
367	IF(.NOT.ALLOCATED(field)) THEN
368	ALLOCATE(field(iml,jml))
369	CALL flinget(fid_dyn, title, iml_dyn,jml_dyn, tllm, ttm_dyn, 1, 1, var_ana)
370	CALL conf_dat2d(title, lon_ini, lat_ini, lon_rad, lat_rad, var_ana, .TRUE.)
371	CALL interp_startvar(title, .TRUE., lon_rad,lat_rad, var_ana, &
372	lon_in, lat_in, lon_in2, lat_in2, field)
373	ELSE IF(SIZE(field)/=SIZE(z)) THEN
374	msg='The '//TRIM(msg)//' field we have does not have the right size'
375	CALL abort_gcm(TRIM(modname),msg,1)
376	END IF
377
378	END SUBROUTINE get_var_dyn
379	!
380	!-------------------------------------------------------------------------------
381
382	END SUBROUTINE start_init_dyn
383	!
384	!-------------------------------------------------------------------------------
385
386
387	!-------------------------------------------------------------------------------
388	!
389	SUBROUTINE start_inter_3d(var,lon_in,lat_in,lon_in2,lat_in2,pls_in,var3d)
390	!
391	!-------------------------------------------------------------------------------
392	USE conf_dat_m, ONLY: conf_dat3d
393	USE pchsp_95_m, ONLY: pchsp_95
394	USE pchfe_95_m, ONLY: pchfe_95
395	IMPLICIT NONE
396	!-------------------------------------------------------------------------------
397	! Arguments:
398	CHARACTER(LEN=*), INTENT(IN) :: var
399	REAL, INTENT(IN) :: lon_in(:), lat_in(:) ! dim (iml) (jml)
400	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
401	REAL, INTENT(IN) :: pls_in(:,:,:) ! dim (iml,jml,lml)
402	REAL, INTENT(OUT) :: var3d (:,:,:) ! dim (iml,jml,lml)
403	!-------------------------------------------------------------------------------
404	! Local variables:
405	CHARACTER(LEN=256) :: modname='start_inter_3d'
406	LOGICAL :: skip
407	REAL :: chmin, chmax
408	INTEGER :: iml, jml, lml, jml2, ii, ij, il, ierr
409	INTEGER :: n_extrap ! Extrapolated points number
410	REAL, ALLOCATABLE :: ax(:), lon_rad(:), lon_ini(:), lev_dyn(:), yder(:)
411	REAL, ALLOCATABLE :: ay(:), lat_rad(:), lat_ini(:), var_tmp3d(:,:,:)
412	REAL, ALLOCATABLE, SAVE :: var_ana3d(:,:,:)
413	!-------------------------------------------------------------------------------
414	iml=assert_eq(SIZE(lon_in),SIZE(lon_in2),SIZE(pls_in,1),SIZE(var3d,1),TRIM(modname)//" iml")
415	jml=assert_eq(SIZE(lat_in), SIZE(pls_in,2),SIZE(var3d,2),TRIM(modname)//" jml")
416	lml=assert_eq(SIZE(pls_in,3),SIZE(var3d,3),TRIM(modname)//" lml"); jml2=SIZE(lat_in2)
417
418	WRITE(lunout, *)'Going into flinget to extract the 3D field.'
419	IF(.NOT.ALLOCATED(var_ana3d)) ALLOCATE(var_ana3d(iml_dyn, jml_dyn, llm_dyn))
420	CALL flinget(fid_dyn,var,iml_dyn,jml_dyn,llm_dyn,ttm_dyn,1,1,var_ana3d)
421
422	!--- ANGLES IN DEGREES ARE CONVERTED INTO RADIANS
423	ALLOCATE(lon_ini(iml_dyn), lat_ini(jml_dyn))
424	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
425	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
426
427	!--- FIELDS ARE PROCESSED TO BE ON STANDARD ANGULAR DOMAINS
428	ALLOCATE(lon_rad(iml_dyn), lat_rad(jml_dyn), lev_dyn(llm_dyn))
429	CALL conf_dat3d(var, lon_ini, lat_ini, levdyn_ini, &
430	lon_rad, lat_rad, lev_dyn, var_ana3d, .TRUE.)
431	DEALLOCATE(lon_ini, lat_ini)
432
433	!--- COMPUTE THE REQUIRED FIELDS USING ROUTINE grid_noro
434	ALLOCATE(var_tmp3d(iml,jml,llm_dyn))
435	DO il = 1,llm_dyn
436	CALL interp_startvar(var,il==1,lon_rad,lat_rad,var_ana3d(:,:,il), &
437	lon_in,lat_in,lon_in2,lat_in2,var_tmp3d(:,:,il))
438	END DO
439	DEALLOCATE(lon_rad, lat_rad)
440
441	!--- VERTICAL INTERPOLATION FROM TOP OF ATMOSPHERE TO GROUND
442	ALLOCATE(ax(llm_dyn),ay(llm_dyn),yder(llm_dyn))
443	ax = lev_dyn(llm_dyn:1:-1)
444	skip = .FALSE.
445	n_extrap = 0
446	DO ij=1, jml
447	DO ii=1, iml-1
448	ay = var_tmp3d(ii, ij, llm_dyn:1:-1)
449	yder = pchsp_95(ax, ay, ibeg=2, iend=2, vc_beg=0., vc_end=0.)
450	CALL pchfe_95(ax, ay, yder, skip, pls_in(ii, ij, lml:1:-1), &
451	var3d(ii, ij, lml:1:-1), ierr)
452	IF(ierr<0) CALL abort_gcm(TRIM(modname),'error in pchfe_95',1)
453	n_extrap = n_extrap + ierr
454	END DO
455	END DO
456	IF(n_extrap/=0) WRITE(lunout,*)TRIM(modname)//" pchfe_95: n_extrap=", n_extrap
457	var3d(iml, :, :) = var3d(1, :, :)
458
459	DO il=1, lml
460	CALL minmax(iml*jml, var3d(1, 1, il), chmin, chmax)
461	WRITE(lunout, *)' '//TRIM(var)//' min max l ', il, chmin, chmax
462	END DO
463
464	END SUBROUTINE start_inter_3d
465	!
466	!-------------------------------------------------------------------------------
467
468
469	!-------------------------------------------------------------------------------
470	!
471	SUBROUTINE interp_startvar(nam,ibeg,lon,lat,vari,lon1,lat1,lon2,lat2,varo)
472	!
473	!-------------------------------------------------------------------------------
474	USE inter_barxy_m, ONLY: inter_barxy
475	IMPLICIT NONE
476	!-------------------------------------------------------------------------------
477	! Arguments:
478	CHARACTER(LEN=*), INTENT(IN) :: nam
479	LOGICAL, INTENT(IN) :: ibeg
480	REAL, INTENT(IN) :: lon(:), lat(:) ! dim (ii) (jj)
481	REAL, INTENT(IN) :: vari(:,:) ! dim (ii,jj)
482	REAL, INTENT(IN) :: lon1(:), lat1(:) ! dim (i1) (j1)
483	REAL, INTENT(IN) :: lon2(:), lat2(:) ! dim (i1) (j2)
484	REAL, INTENT(OUT) :: varo(:,:) ! dim (i1) (j1)
485	!-------------------------------------------------------------------------------
486	! Local variables:
487	CHARACTER(LEN=256) :: modname="interp_startvar"
488	INTEGER :: ii, jj, i1, j1, j2
489	REAL, ALLOCATABLE :: vtmp(:,:)
490	!-------------------------------------------------------------------------------
491	ii=assert_eq(SIZE(lon), SIZE(vari,1),TRIM(modname)//" ii")
492	jj=assert_eq(SIZE(lat), SIZE(vari,2),TRIM(modname)//" jj")
493	i1=assert_eq(SIZE(lon1),SIZE(lon2),SIZE(varo,1),TRIM(modname)//" i1")
494	j1=assert_eq(SIZE(lat1), SIZE(varo,2),TRIM(modname)//" j1")
495	j2=SIZE(lat2)
496	ALLOCATE(vtmp(i1-1,j1))
497	IF(ibeg.AND.prt_level>1) THEN
498	WRITE(lunout,*)"---------------------------------------------------------"
499	WRITE(lunout,*)"$$$ Interpolation barycentrique pour "//TRIM(nam)//" $$$"
500	WRITE(lunout,*)"---------------------------------------------------------"
501	END IF
502	CALL inter_barxy(lon, lat(:jj-1), vari, lon2(:i1-1), lat2, vtmp)
503	CALL gr_int_dyn(vtmp, varo, i1-1, j1)
504
505	END SUBROUTINE interp_startvar
506	!
507	!-------------------------------------------------------------------------------
508
509	END MODULE etat0dyn
510	!
511	!*******************************************************************************

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