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etat0dyn_netcdf.F90 @ 2941

Last change on this file since 2941 was 2941, checked in by acozic, 7 years ago
when we make a simulation with inca, we do not want to make a test on ozone for the ce0l
File size: 21.8 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
42	IMPLICIT NONE
43
44	PRIVATE
45	PUBLIC :: etat0dyn_netcdf
46
47	include "iniprint.h"
48	include "dimensions.h"
49	include "paramet.h"
50	include "comgeom2.h"
51	include "comdissnew.h"
52	REAL, SAVE :: deg2rad
53	INTEGER, SAVE :: iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn
54	REAL, ALLOCATABLE, SAVE :: lon_dyn(:,:), lat_dyn(:,:), levdyn_ini(:)
55	CHARACTER(LEN=120), PARAMETER :: dynfname='ECDYN.nc'
56
57	CONTAINS
58
59	!-------------------------------------------------------------------------------
60	!
61	SUBROUTINE etat0dyn_netcdf(masque, phis)
62	!
63	!-------------------------------------------------------------------------------
64	! Purpose: Create dynamical initial states.
65	!-------------------------------------------------------------------------------
66	! Notes: 1) This routine is designed to work for Earth
67	! 2) If masque(:,:)/=-99999., masque and phis are already known.
68	! Otherwise: compute it.
69	!-------------------------------------------------------------------------------
70	USE control_mod
71	USE regr_lat_time_coefoz_m, ONLY: regr_lat_time_coefoz
72	USE regr_pr_o3_m, ONLY: regr_pr_o3
73	USE press_coefoz_m, ONLY: press_coefoz
74	USE exner_hyb_m, ONLY: exner_hyb
75	USE exner_milieu_m, ONLY: exner_milieu
76	USE infotrac, ONLY: nqtot, tname
77	USE filtreg_mod
78	IMPLICIT NONE
79	!-------------------------------------------------------------------------------
80	! Arguments:
81	REAL, INTENT(INOUT) :: masque(iip1,jjp1) !--- Land-ocean mask
82	REAL, INTENT(INOUT) :: phis (iip1,jjp1) !--- Ground geopotential
83	!-------------------------------------------------------------------------------
84	! Local variables:
85	CHARACTER(LEN=256) :: modname, fmt
86	INTEGER :: i, j, l, ji, itau, iday
87	REAL :: xpn, xps, time, phystep
88	REAL, DIMENSION(iip1,jjp1) :: psol
89	REAL, DIMENSION(iip1,jjp1,llm+1) :: p3d
90	REAL, DIMENSION(iip1,jjp1,llm) :: uvent, t3d, tpot, qsat, qd
91	REAL, DIMENSION(iip1,jjp1,llm) :: pk, pls, y, masse
92	REAL, DIMENSION(iip1,jjm ,llm) :: vvent
93	REAL, DIMENSION(ip1jm ,llm) :: pbarv
94	REAL, DIMENSION(ip1jmp1 ,llm) :: pbaru, phi, w
95	REAL, DIMENSION(ip1jmp1) :: pks
96	REAL, DIMENSION(iim) :: xppn, xpps
97	REAL, ALLOCATABLE :: q3d(:,:,:,:)
98	!-------------------------------------------------------------------------------
99	modname='etat0dyn_netcdf'
100
101	deg2rad = pi/180.0
102
103	! Compute psol AND tsol, knowing phis.
104	!*******************************************************************************
105	CALL start_init_dyn(rlonv, rlatu, rlonu, rlatv, phis, psol)
106
107	! Mid-levels pressure computation
108	!*******************************************************************************
109	CALL pression(ip1jmp1, ap, bp, psol, p3d) !--- Update p3d
110	IF(pressure_exner) THEN !--- Update pk, pks
111	CALL exner_hyb (ip1jmp1,psol,p3d,pks,pk)
112	ELSE
113	CALL exner_milieu(ip1jmp1,psol,p3d,pks,pk)
114	END IF
115	pls(:,:,:)=preff(pk(:,:,:)/cpp)*(1./kappa) !--- Update pls
116
117	! Update uvent, vvent, t3d and tpot
118	!*******************************************************************************
119	uvent(:,:,:) = 0.0 ; vvent(:,:,:) = 0.0 ; t3d (:,:,:) = 0.0
120	CALL startget_dyn3d('u' ,rlonu,rlatu,pls,y ,uvent,rlonv,rlatv)
121	CALL startget_dyn3d('v' ,rlonv,rlatv,pls(:,:jjm,:),y(:,:jjm,:),vvent, &
122	& rlonu,rlatu(:jjm))
123	CALL startget_dyn3d('t' ,rlonv,rlatu,pls,y ,t3d ,rlonu,rlatv)
124	tpot(:,:,:)=t3d(:,:,:)
125	CALL startget_dyn3d('tpot',rlonv,rlatu,pls,pk,tpot,rlonu,rlatv)
126
127	WRITE(lunout,*) 'T3D min,max:',MINVAL(t3d(:,:,:)),MAXVAL(t3d(:,:,:))
128	WRITE(lunout,*) 'PLS min,max:',MINVAL(pls(:,:,:)),MAXVAL(pls(:,:,:))
129
130	! Humidity at saturation computation
131	!*******************************************************************************
132	WRITE(lunout,*) 'avant q_sat'
133	CALL q_sat(llmjjp1iip1, t3d, pls, qsat)
134	WRITE(lunout,*) 'apres q_sat'
135	WRITE(lunout,*) 'QSAT min,max:',MINVAL(qsat(:,:,:)),MAXVAL(qsat(:,:,:))
136	! WRITE(lunout,*) 'QSAT :',qsat(10,20,:)
137	qd (:,:,:) = 0.0
138	CALL startget_dyn3d('q',rlonv,rlatu,pls,qsat,qd,rlonu,rlatv)
139	ALLOCATE(q3d(iip1,jjp1,llm,nqtot)); q3d(:,:,:,:)=0.0 ; q3d(:,:,:,1)=qd(:,:,:)
140	CALL flinclo(fid_dyn)
141
142	! Parameterization of ozone chemistry:
143	!*******************************************************************************
144	! Look for ozone tracer:
145	#ifndef INCA
146	DO i=1,nqtot; IF(ANY(["O3","o3"]==tname(i))) EXIT; END DO
147	IF(i/=nqtot+1) THEN
148	CALL regr_lat_time_coefoz
149	CALL press_coefoz
150	CALL regr_pr_o3(p3d, q3d(:,:,:,i))
151	q3d(:,:,:,i)=q3d(:,:,:,i)*48./ 29. !--- Mole->mass fraction
152	END IF
153	#endif
154	q3d(iip1,:,:,:)=q3d(1,:,:,:)
155
156	! Writing
157	!*******************************************************************************
158	CALL inidissip(lstardis, nitergdiv, nitergrot, niterh, tetagdiv, tetagrot, &
159	tetatemp, vert_prof_dissip)
160	WRITE(lunout,*)'sortie inidissip'
161	itau=0
162	itau_dyn=0
163	itau_phy=0
164	iday=dayref+itau/day_step
165	time=FLOAT(itau-(iday-dayref)*day_step)/day_step
166	IF(time>1.) THEN
167	time=time-1
168	iday=iday+1
169	END IF
170	day_ref=dayref
171	annee_ref=anneeref
172	CALL geopot( ip1jmp1, tpot, pk, pks, phis, phi )
173	WRITE(lunout,*)'sortie geopot'
174	CALL caldyn0( itau, uvent, vvent, tpot, psol, masse, pk, phis, &
175	phi, w, pbaru, pbarv, time+iday-dayref)
176	WRITE(lunout,*)'sortie caldyn0'
177	start_time = 0.
178	#ifdef CPP_PARA
179	CALL dynredem0_loc( "start.nc", dayref, phis)
180	#else
181	CALL dynredem0( "start.nc", dayref, phis)
182	#endif
183	WRITE(lunout,*)'sortie dynredem0'
184	#ifdef CPP_PARA
185	CALL dynredem1_loc( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
186	#else
187	CALL dynredem1( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
188	#endif
189	WRITE(lunout,*)'sortie dynredem1'
190	CALL histclo()
191
192	END SUBROUTINE etat0dyn_netcdf
193	!
194	!-------------------------------------------------------------------------------
195
196
197	!-------------------------------------------------------------------------------
198	!
199	SUBROUTINE startget_dyn3d(var, lon_in, lat_in, pls, workvar,&
200	champ, lon_in2, lat_in2)
201	!-------------------------------------------------------------------------------
202	IMPLICIT NONE
203	!===============================================================================
204	! Purpose: Compute some quantities (u,v,t,q,tpot) using variables U,V,TEMP and R
205	! (3D fields) of file dynfname.
206	!-------------------------------------------------------------------------------
207	! Note: An input auxilliary field "workvar" has to be specified in two cases:
208	! * for "q": the saturated humidity.
209	! * for "tpot": the Exner function.
210	!===============================================================================
211	! Arguments:
212	CHARACTER(LEN=*), INTENT(IN) :: var
213	REAL, INTENT(IN) :: lon_in(:) ! dim (iml)
214	REAL, INTENT(IN) :: lat_in(:) ! dim (jml)
215	REAL, INTENT(IN) :: pls (:, :, :) ! dim (iml, jml, lml)
216	REAL, INTENT(IN) :: workvar(:, :, :) ! dim (iml, jml, lml)
217	REAL, INTENT(INOUT) :: champ (:, :, :) ! dim (iml, jml, lml)
218	REAL, INTENT(IN) :: lon_in2(:) ! dim (iml)
219	REAL, INTENT(IN) :: lat_in2(:) ! dim (jml2)
220	!-------------------------------------------------------------------------------
221	! Local variables:
222	CHARACTER(LEN=10) :: vname
223	CHARACTER(LEN=256) :: msg, modname="startget_dyn3d"
224	INTEGER :: iml, jml, jml2, lml, il
225	REAL :: xppn, xpps
226	!-------------------------------------------------------------------------------
227	iml=assert_eq([SIZE(lon_in),SIZE(pls,1),SIZE(workvar,1),SIZE(champ,1), &
228	& SIZE(lon_in2)], TRIM(modname)//" iml")
229	jml=assert_eq( SIZE(lat_in),SIZE(pls,2),SIZE(workvar,2),SIZE(champ,2), &
230	& TRIM(modname)//" jml")
231	lml=assert_eq( SIZE(pls,3),SIZE(workvar,3),SIZE(champ,3), &
232	& TRIM(modname)//" lml")
233	jml2=SIZE(lat_in2)
234
235	!--- CHECK IF THE FIELD IS KNOWN
236	SELECT CASE(var)
237	CASE('u'); vname='U'
238	CASE('v'); vname='V'
239	CASE('t'); vname='TEMP'
240	CASE('q'); vname='R'; msg='humidity as the saturated humidity'
241	CASE('tpot'); msg='potential temperature as the Exner function'
242	CASE DEFAULT; msg='No rule to extract variable '//TRIM(var)
243	CALL abort_gcm(modname,TRIM(msg)//' from any data set',1)
244	END SELECT
245
246	!--- CHECK IF SOMETHING IS MISSING
247	IF((var=='tpot'.OR.var=='q').AND.MINVAL(workvar)==MAXVAL(workvar)) THEN
248	msg='Could not compute '//TRIM(msg)//' is missing or constant.'
249	CALL abort_gcm(modname,TRIM(msg),1)
250	END IF
251
252	!--- INTERPOLATE 3D FIELD IF NEEDED
253	IF(var/='tpot') CALL start_inter_3d(TRIM(vname),lon_in,lat_in,lon_in2, &
254	lat_in2,pls,champ)
255
256	!--- COMPUTE THE REQUIRED FILED
257	SELECT CASE(var)
258	CASE('u'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cu(:,1:jml); END DO
259	champ(iml,:,:)=champ(1,:,:) !--- Eastward wind
260
261	CASE('v'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cv(:,1:jml); END DO
262	champ(iml,:,:)=champ(1,:,:) !--- Northward wind
263
264	CASE('tpot','q')
265	IF(var=='tpot') THEN; champ=champ*cpp/workvar !--- Potential temperature
266	ELSE; champ=champ.01workvar !--- Relative humidity
267	WHERE(champ<0.) champ=1.0E-10
268	END IF
269	DO il=1,lml
270	xppn = SUM(aire(:,1 )*champ(:,1 ,il))/apoln
271	xpps = SUM(aire(:,jml)*champ(:,jml,il))/apols
272	champ(:,1 ,il) = xppn
273	champ(:,jml,il) = xpps
274	END DO
275	END SELECT
276
277	END SUBROUTINE startget_dyn3d
278	!
279	!-------------------------------------------------------------------------------
280
281
282	!-------------------------------------------------------------------------------
283	!
284	SUBROUTINE start_init_dyn(lon_in,lat_in,lon_in2,lat_in2,zs,psol)
285	!
286	!-------------------------------------------------------------------------------
287	IMPLICIT NONE
288	!===============================================================================
289	! Purpose: Compute psol, knowing phis.
290	!===============================================================================
291	! Arguments:
292	REAL, INTENT(IN) :: lon_in (:), lat_in (:) ! dim (iml) (jml)
293	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
294	REAL, INTENT(IN) :: zs (:,:) ! dim (iml,jml)
295	REAL, INTENT(OUT) :: psol(:,:) ! dim (iml,jml)
296	!-------------------------------------------------------------------------------
297	! Local variables:
298	CHARACTER(LEN=256) :: modname='start_init_dyn'
299	REAL :: date, dt
300	INTEGER :: iml, jml, jml2, itau(1)
301	REAL, ALLOCATABLE :: lon_rad(:), lon_ini(:), var_ana(:,:)
302	REAL, ALLOCATABLE :: lat_rad(:), lat_ini(:)
303	REAL, ALLOCATABLE :: z(:,:), ps(:,:), ts(:,:)
304	!-------------------------------------------------------------------------------
305	iml=assert_eq(SIZE(lon_in),SIZE(zs,1),SIZE(psol,1),SIZE(lon_in2), &
306	& TRIM(modname)//" iml")
307	jml=assert_eq(SIZE(lat_in),SIZE(zs,2),SIZE(psol,2),TRIM(modname)//" jml")
308	jml2=SIZE(lat_in2)
309
310	WRITE(lunout,*) 'Opening the surface analysis'
311	CALL flininfo(dynfname, iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn)
312	WRITE(lunout,*) 'Values read: ', iml_dyn, jml_dyn, llm_dyn, ttm_dyn
313
314	ALLOCATE(lon_dyn(iml_dyn,jml_dyn), lat_dyn(iml_dyn,jml_dyn))
315	ALLOCATE(levdyn_ini(llm_dyn))
316	CALL flinopen(dynfname, .FALSE., iml_dyn, jml_dyn, llm_dyn, &
317	lon_dyn,lat_dyn,levdyn_ini,ttm_dyn,itau,date,dt,fid_dyn)
318
319	!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
320	ALLOCATE(lon_ini(iml_dyn),lat_ini(jml_dyn))
321	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
322	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
323
324	ALLOCATE(var_ana(iml_dyn,jml_dyn),lon_rad(iml_dyn),lat_rad(jml_dyn))
325	CALL get_var_dyn('Z',z) !--- SURFACE GEOPOTENTIAL
326	CALL get_var_dyn('SP',ps) !--- SURFACE PRESSURE
327	CALL get_var_dyn('ST',ts) !--- SURFACE TEMPERATURE
328	! CALL flinclo(fid_dyn)
329	DEALLOCATE(var_ana,lon_rad,lat_rad,lon_ini,lat_ini)
330
331	!--- PSOL IS COMPUTED IN PASCALS
332	psol(:iml-1,:) = ps(:iml-1,:)*(1.0+(z(:iml-1,:)-zs(:iml-1,:))/287.0 &
333	& /ts(:iml-1,:))
334	psol(iml,:)=psol(1,:)
335	DEALLOCATE(z,ps,ts)
336	psol(:,1 )=SUM(aire(1:iml-1,1 )*psol(1:iml-1,1 ))/apoln !--- NORTH POLE
337	psol(:,jml)=SUM(aire(1:iml-1,jml)*psol(1:iml-1,jml))/apols !--- SOUTH POLE
338
339	CONTAINS
340
341	!-------------------------------------------------------------------------------
342	!
343	SUBROUTINE get_var_dyn(title,field)
344	!
345	!-------------------------------------------------------------------------------
346	USE conf_dat_m, ONLY: conf_dat2d
347	IMPLICIT NONE
348	!-------------------------------------------------------------------------------
349	! Arguments:
350	CHARACTER(LEN=*), INTENT(IN) :: title
351	REAL, ALLOCATABLE, INTENT(INOUT) :: field(:,:)
352	!-------------------------------------------------------------------------------
353	! Local variables:
354	CHARACTER(LEN=256) :: msg
355	INTEGER :: tllm
356	!-------------------------------------------------------------------------------
357	SELECT CASE(title)
358	CASE('Z'); tllm=0; msg='geopotential'
359	CASE('SP'); tllm=0; msg='surface pressure'
360	CASE('ST'); tllm=llm_dyn; msg='temperature'
361	END SELECT
362	IF(.NOT.ALLOCATED(field)) THEN
363	ALLOCATE(field(iml,jml))
364	CALL flinget(fid_dyn, title, iml_dyn,jml_dyn, tllm, ttm_dyn, 1, 1, var_ana)
365	CALL conf_dat2d(title, lon_ini, lat_ini, lon_rad, lat_rad, var_ana, .TRUE.)
366	CALL interp_startvar(title, .TRUE., lon_rad,lat_rad, var_ana, &
367	lon_in, lat_in, lon_in2, lat_in2, field)
368	ELSE IF(SIZE(field)/=SIZE(z)) THEN
369	msg='The '//TRIM(msg)//' field we have does not have the right size'
370	CALL abort_gcm(TRIM(modname),msg,1)
371	END IF
372
373	END SUBROUTINE get_var_dyn
374	!
375	!-------------------------------------------------------------------------------
376
377	END SUBROUTINE start_init_dyn
378	!
379	!-------------------------------------------------------------------------------
380
381
382	!-------------------------------------------------------------------------------
383	!
384	SUBROUTINE start_inter_3d(var,lon_in,lat_in,lon_in2,lat_in2,pls_in,var3d)
385	!
386	!-------------------------------------------------------------------------------
387	USE conf_dat_m, ONLY: conf_dat3d
388	USE pchsp_95_m, ONLY: pchsp_95
389	USE pchfe_95_m, ONLY: pchfe_95
390	IMPLICIT NONE
391	!-------------------------------------------------------------------------------
392	! Arguments:
393	CHARACTER(LEN=*), INTENT(IN) :: var
394	REAL, INTENT(IN) :: lon_in(:), lat_in(:) ! dim (iml) (jml)
395	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
396	REAL, INTENT(IN) :: pls_in(:,:,:) ! dim (iml,jml,lml)
397	REAL, INTENT(OUT) :: var3d (:,:,:) ! dim (iml,jml,lml)
398	!-------------------------------------------------------------------------------
399	! Local variables:
400	CHARACTER(LEN=256) :: modname='start_inter_3d'
401	LOGICAL :: skip
402	REAL :: chmin, chmax
403	INTEGER :: iml, jml, lml, jml2, ii, ij, il, ierr
404	INTEGER :: n_extrap ! Extrapolated points number
405	REAL, ALLOCATABLE :: ax(:), lon_rad(:), lon_ini(:), lev_dyn(:), yder(:)
406	REAL, ALLOCATABLE :: ay(:), lat_rad(:), lat_ini(:), var_tmp3d(:,:,:)
407	REAL, ALLOCATABLE, SAVE :: var_ana3d(:,:,:)
408	!-------------------------------------------------------------------------------
409	iml=assert_eq(SIZE(lon_in),SIZE(lon_in2),SIZE(pls_in,1),SIZE(var3d,1),TRIM(modname)//" iml")
410	jml=assert_eq(SIZE(lat_in), SIZE(pls_in,2),SIZE(var3d,2),TRIM(modname)//" jml")
411	lml=assert_eq(SIZE(pls_in,3),SIZE(var3d,3),TRIM(modname)//" lml"); jml2=SIZE(lat_in2)
412
413	WRITE(lunout, *)'Going into flinget to extract the 3D field.'
414	IF(.NOT.ALLOCATED(var_ana3d)) ALLOCATE(var_ana3d(iml_dyn, jml_dyn, llm_dyn))
415	CALL flinget(fid_dyn,var,iml_dyn,jml_dyn,llm_dyn,ttm_dyn,1,1,var_ana3d)
416
417	!--- ANGLES IN DEGREES ARE CONVERTED INTO RADIANS
418	ALLOCATE(lon_ini(iml_dyn), lat_ini(jml_dyn))
419	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
420	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
421
422	!--- FIELDS ARE PROCESSED TO BE ON STANDARD ANGULAR DOMAINS
423	ALLOCATE(lon_rad(iml_dyn), lat_rad(jml_dyn), lev_dyn(llm_dyn))
424	CALL conf_dat3d(var, lon_ini, lat_ini, levdyn_ini, &
425	lon_rad, lat_rad, lev_dyn, var_ana3d, .TRUE.)
426	DEALLOCATE(lon_ini, lat_ini)
427
428	!--- COMPUTE THE REQUIRED FIELDS USING ROUTINE grid_noro
429	ALLOCATE(var_tmp3d(iml,jml,llm_dyn))
430	DO il = 1,llm_dyn
431	CALL interp_startvar(var,il==1,lon_rad,lat_rad,var_ana3d(:,:,il), &
432	lon_in,lat_in,lon_in2,lat_in2,var_tmp3d(:,:,il))
433	END DO
434	DEALLOCATE(lon_rad, lat_rad)
435
436	!--- VERTICAL INTERPOLATION FROM TOP OF ATMOSPHERE TO GROUND
437	ALLOCATE(ax(llm_dyn),ay(llm_dyn),yder(llm_dyn))
438	ax = lev_dyn(llm_dyn:1:-1)
439	skip = .FALSE.
440	n_extrap = 0
441	DO ij=1, jml
442	DO ii=1, iml-1
443	ay = var_tmp3d(ii, ij, llm_dyn:1:-1)
444	yder = pchsp_95(ax, ay, ibeg=2, iend=2, vc_beg=0., vc_end=0.)
445	CALL pchfe_95(ax, ay, yder, skip, pls_in(ii, ij, lml:1:-1), &
446	var3d(ii, ij, lml:1:-1), ierr)
447	IF(ierr<0) CALL abort_gcm(TRIM(modname),'error in pchfe_95',1)
448	n_extrap = n_extrap + ierr
449	END DO
450	END DO
451	IF(n_extrap/=0) WRITE(lunout,*)TRIM(modname)//" pchfe_95: n_extrap=", n_extrap
452	var3d(iml, :, :) = var3d(1, :, :)
453
454	DO il=1, lml
455	CALL minmax(iml*jml, var3d(1, 1, il), chmin, chmax)
456	WRITE(lunout, *)' '//TRIM(var)//' min max l ', il, chmin, chmax
457	END DO
458
459	END SUBROUTINE start_inter_3d
460	!
461	!-------------------------------------------------------------------------------
462
463
464	!-------------------------------------------------------------------------------
465	!
466	SUBROUTINE interp_startvar(nam,ibeg,lon,lat,vari,lon1,lat1,lon2,lat2,varo)
467	!
468	!-------------------------------------------------------------------------------
469	USE inter_barxy_m, ONLY: inter_barxy
470	IMPLICIT NONE
471	!-------------------------------------------------------------------------------
472	! Arguments:
473	CHARACTER(LEN=*), INTENT(IN) :: nam
474	LOGICAL, INTENT(IN) :: ibeg
475	REAL, INTENT(IN) :: lon(:), lat(:) ! dim (ii) (jj)
476	REAL, INTENT(IN) :: vari(:,:) ! dim (ii,jj)
477	REAL, INTENT(IN) :: lon1(:), lat1(:) ! dim (i1) (j1)
478	REAL, INTENT(IN) :: lon2(:), lat2(:) ! dim (i1) (j2)
479	REAL, INTENT(OUT) :: varo(:,:) ! dim (i1) (j1)
480	!-------------------------------------------------------------------------------
481	! Local variables:
482	CHARACTER(LEN=256) :: modname="interp_startvar"
483	INTEGER :: ii, jj, i1, j1, j2
484	REAL, ALLOCATABLE :: vtmp(:,:)
485	!-------------------------------------------------------------------------------
486	ii=assert_eq(SIZE(lon), SIZE(vari,1),TRIM(modname)//" ii")
487	jj=assert_eq(SIZE(lat), SIZE(vari,2),TRIM(modname)//" jj")
488	i1=assert_eq(SIZE(lon1),SIZE(lon2),SIZE(varo,1),TRIM(modname)//" i1")
489	j1=assert_eq(SIZE(lat1), SIZE(varo,2),TRIM(modname)//" j1")
490	j2=SIZE(lat2)
491	ALLOCATE(vtmp(i1-1,j1))
492	IF(ibeg.AND.prt_level>1) THEN
493	WRITE(lunout,*)"---------------------------------------------------------"
494	WRITE(lunout,*)"$$$ Interpolation barycentrique pour "//TRIM(nam)//" $$$"
495	WRITE(lunout,*)"---------------------------------------------------------"
496	END IF
497	CALL inter_barxy(lon, lat(:jj-1), vari, lon2(:i1-1), lat2, vtmp)
498	CALL gr_int_dyn(vtmp, varo, i1-1, j1)
499
500	END SUBROUTINE interp_startvar
501	!
502	!-------------------------------------------------------------------------------
503
504	END MODULE etat0dyn
505	!
506	!*******************************************************************************

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