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etat0dyn_netcdf.F90 @ 3693

Last change on this file since 3693 was 2601, checked in by Ehouarn Millour, 8 years ago
Cleanup in the dynamics: turn temps.h into module temps_mod.F90 EM
File size: 21.7 KB

Line
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
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	DO i=1,nqtot; IF(ANY(["O3","o3"]==tname(i))) EXIT; END DO
146	IF(i/=nqtot+1) THEN
147	CALL regr_lat_time_coefoz
148	CALL press_coefoz
149	CALL regr_pr_o3(p3d, q3d(:,:,:,i))
150	q3d(:,:,:,i)=q3d(:,:,:,i)*48./ 29. !--- Mole->mass fraction
151	END IF
152	q3d(iip1,:,:,:)=q3d(1,:,:,:)
153
154	! Writing
155	!*******************************************************************************
156	CALL inidissip(lstardis, nitergdiv, nitergrot, niterh, tetagdiv, tetagrot, &
157	tetatemp, vert_prof_dissip)
158	WRITE(lunout,*)'sortie inidissip'
159	itau=0
160	itau_dyn=0
161	itau_phy=0
162	iday=dayref+itau/day_step
163	time=FLOAT(itau-(iday-dayref)*day_step)/day_step
164	IF(time>1.) THEN
165	time=time-1
166	iday=iday+1
167	END IF
168	day_ref=dayref
169	annee_ref=anneeref
170	CALL geopot( ip1jmp1, tpot, pk, pks, phis, phi )
171	WRITE(lunout,*)'sortie geopot'
172	CALL caldyn0( itau, uvent, vvent, tpot, psol, masse, pk, phis, &
173	phi, w, pbaru, pbarv, time+iday-dayref)
174	WRITE(lunout,*)'sortie caldyn0'
175	#ifdef CPP_PARA
176	CALL dynredem0_loc( "start.nc", dayref, phis)
177	#else
178	CALL dynredem0( "start.nc", dayref, phis)
179	#endif
180	WRITE(lunout,*)'sortie dynredem0'
181	#ifdef CPP_PARA
182	CALL dynredem1_loc( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
183	#else
184	CALL dynredem1( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
185	#endif
186	WRITE(lunout,*)'sortie dynredem1'
187	CALL histclo()
188
189	END SUBROUTINE etat0dyn_netcdf
190	!
191	!-------------------------------------------------------------------------------
192
193
194	!-------------------------------------------------------------------------------
195	!
196	SUBROUTINE startget_dyn3d(var, lon_in, lat_in, pls, workvar,&
197	champ, lon_in2, lat_in2)
198	!-------------------------------------------------------------------------------
199	IMPLICIT NONE
200	!===============================================================================
201	! Purpose: Compute some quantities (u,v,t,q,tpot) using variables U,V,TEMP and R
202	! (3D fields) of file dynfname.
203	!-------------------------------------------------------------------------------
204	! Note: An input auxilliary field "workvar" has to be specified in two cases:
205	! * for "q": the saturated humidity.
206	! * for "tpot": the Exner function.
207	!===============================================================================
208	! Arguments:
209	CHARACTER(LEN=*), INTENT(IN) :: var
210	REAL, INTENT(IN) :: lon_in(:) ! dim (iml)
211	REAL, INTENT(IN) :: lat_in(:) ! dim (jml)
212	REAL, INTENT(IN) :: pls (:, :, :) ! dim (iml, jml, lml)
213	REAL, INTENT(IN) :: workvar(:, :, :) ! dim (iml, jml, lml)
214	REAL, INTENT(INOUT) :: champ (:, :, :) ! dim (iml, jml, lml)
215	REAL, INTENT(IN) :: lon_in2(:) ! dim (iml)
216	REAL, INTENT(IN) :: lat_in2(:) ! dim (jml2)
217	!-------------------------------------------------------------------------------
218	! Local variables:
219	CHARACTER(LEN=10) :: vname
220	CHARACTER(LEN=256) :: msg, modname="startget_dyn3d"
221	INTEGER :: iml, jml, jml2, lml, il
222	REAL :: xppn, xpps
223	!-------------------------------------------------------------------------------
224	iml=assert_eq([SIZE(lon_in),SIZE(pls,1),SIZE(workvar,1),SIZE(champ,1), &
225	& SIZE(lon_in2)], TRIM(modname)//" iml")
226	jml=assert_eq( SIZE(lat_in),SIZE(pls,2),SIZE(workvar,2),SIZE(champ,2), &
227	& TRIM(modname)//" jml")
228	lml=assert_eq( SIZE(pls,3),SIZE(workvar,3),SIZE(champ,3), &
229	& TRIM(modname)//" lml")
230	jml2=SIZE(lat_in2)
231
232	!--- CHECK IF THE FIELD IS KNOWN
233	SELECT CASE(var)
234	CASE('u'); vname='U'
235	CASE('v'); vname='V'
236	CASE('t'); vname='TEMP'
237	CASE('q'); vname='R'; msg='humidity as the saturated humidity'
238	CASE('tpot'); msg='potential temperature as the Exner function'
239	CASE DEFAULT; msg='No rule to extract variable '//TRIM(var)
240	CALL abort_gcm(modname,TRIM(msg)//' from any data set',1)
241	END SELECT
242
243	!--- CHECK IF SOMETHING IS MISSING
244	IF((var=='tpot'.OR.var=='q').AND.MINVAL(workvar)==MAXVAL(workvar)) THEN
245	msg='Could not compute '//TRIM(msg)//' is missing or constant.'
246	CALL abort_gcm(modname,TRIM(msg),1)
247	END IF
248
249	!--- INTERPOLATE 3D FIELD IF NEEDED
250	IF(var/='tpot') CALL start_inter_3d(TRIM(vname),lon_in,lat_in,lon_in2, &
251	lat_in2,pls,champ)
252
253	!--- COMPUTE THE REQUIRED FILED
254	SELECT CASE(var)
255	CASE('u'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cu(:,1:jml); END DO
256	champ(iml,:,:)=champ(1,:,:) !--- Eastward wind
257
258	CASE('v'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cv(:,1:jml); END DO
259	champ(iml,:,:)=champ(1,:,:) !--- Northward wind
260
261	CASE('tpot','q')
262	IF(var=='tpot') THEN; champ=champ*cpp/workvar !--- Potential temperature
263	ELSE; champ=champ.01workvar !--- Relative humidity
264	WHERE(champ<0.) champ=1.0E-10
265	END IF
266	DO il=1,lml
267	xppn = SUM(aire(:,1 )*champ(:,1 ,il))/apoln
268	xpps = SUM(aire(:,jml)*champ(:,jml,il))/apols
269	champ(:,1 ,il) = xppn
270	champ(:,jml,il) = xpps
271	END DO
272	END SELECT
273
274	END SUBROUTINE startget_dyn3d
275	!
276	!-------------------------------------------------------------------------------
277
278
279	!-------------------------------------------------------------------------------
280	!
281	SUBROUTINE start_init_dyn(lon_in,lat_in,lon_in2,lat_in2,zs,psol)
282	!
283	!-------------------------------------------------------------------------------
284	IMPLICIT NONE
285	!===============================================================================
286	! Purpose: Compute psol, knowing phis.
287	!===============================================================================
288	! Arguments:
289	REAL, INTENT(IN) :: lon_in (:), lat_in (:) ! dim (iml) (jml)
290	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
291	REAL, INTENT(IN) :: zs (:,:) ! dim (iml,jml)
292	REAL, INTENT(OUT) :: psol(:,:) ! dim (iml,jml)
293	!-------------------------------------------------------------------------------
294	! Local variables:
295	CHARACTER(LEN=256) :: modname='start_init_dyn'
296	REAL :: date, dt
297	INTEGER :: iml, jml, jml2, itau(1)
298	REAL, ALLOCATABLE :: lon_rad(:), lon_ini(:), var_ana(:,:)
299	REAL, ALLOCATABLE :: lat_rad(:), lat_ini(:)
300	REAL, ALLOCATABLE :: z(:,:), ps(:,:), ts(:,:)
301	!-------------------------------------------------------------------------------
302	iml=assert_eq(SIZE(lon_in),SIZE(zs,1),SIZE(psol,1),SIZE(lon_in2), &
303	& TRIM(modname)//" iml")
304	jml=assert_eq(SIZE(lat_in),SIZE(zs,2),SIZE(psol,2),TRIM(modname)//" jml")
305	jml2=SIZE(lat_in2)
306
307	WRITE(lunout,*) 'Opening the surface analysis'
308	CALL flininfo(dynfname, iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn)
309	WRITE(lunout,*) 'Values read: ', iml_dyn, jml_dyn, llm_dyn, ttm_dyn
310
311	ALLOCATE(lon_dyn(iml_dyn,jml_dyn), lat_dyn(iml_dyn,jml_dyn))
312	ALLOCATE(levdyn_ini(llm_dyn))
313	CALL flinopen(dynfname, .FALSE., iml_dyn, jml_dyn, llm_dyn, &
314	lon_dyn,lat_dyn,levdyn_ini,ttm_dyn,itau,date,dt,fid_dyn)
315
316	!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
317	ALLOCATE(lon_ini(iml_dyn),lat_ini(jml_dyn))
318	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
319	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
320
321	ALLOCATE(var_ana(iml_dyn,jml_dyn),lon_rad(iml_dyn),lat_rad(jml_dyn))
322	CALL get_var_dyn('Z',z) !--- SURFACE GEOPOTENTIAL
323	CALL get_var_dyn('SP',ps) !--- SURFACE PRESSURE
324	CALL get_var_dyn('ST',ts) !--- SURFACE TEMPERATURE
325	! CALL flinclo(fid_dyn)
326	DEALLOCATE(var_ana,lon_rad,lat_rad,lon_ini,lat_ini)
327
328	!--- PSOL IS COMPUTED IN PASCALS
329	psol(:iml-1,:) = ps(:iml-1,:)*(1.0+(z(:iml-1,:)-zs(:iml-1,:))/287.0 &
330	& /ts(:iml-1,:))
331	psol(iml,:)=psol(1,:)
332	DEALLOCATE(z,ps,ts)
333	psol(:,1 )=SUM(aire(1:iml-1,1 )*psol(1:iml-1,1 ))/apoln !--- NORTH POLE
334	psol(:,jml)=SUM(aire(1:iml-1,jml)*psol(1:iml-1,jml))/apols !--- SOUTH POLE
335
336	CONTAINS
337
338	!-------------------------------------------------------------------------------
339	!
340	SUBROUTINE get_var_dyn(title,field)
341	!
342	!-------------------------------------------------------------------------------
343	USE conf_dat_m, ONLY: conf_dat2d
344	IMPLICIT NONE
345	!-------------------------------------------------------------------------------
346	! Arguments:
347	CHARACTER(LEN=*), INTENT(IN) :: title
348	REAL, ALLOCATABLE, INTENT(INOUT) :: field(:,:)
349	!-------------------------------------------------------------------------------
350	! Local variables:
351	CHARACTER(LEN=256) :: msg
352	INTEGER :: tllm
353	!-------------------------------------------------------------------------------
354	SELECT CASE(title)
355	CASE('Z'); tllm=0; msg='geopotential'
356	CASE('SP'); tllm=0; msg='surface pressure'
357	CASE('ST'); tllm=llm_dyn; msg='temperature'
358	END SELECT
359	IF(.NOT.ALLOCATED(field)) THEN
360	ALLOCATE(field(iml,jml))
361	CALL flinget(fid_dyn, title, iml_dyn,jml_dyn, tllm, ttm_dyn, 1, 1, var_ana)
362	CALL conf_dat2d(title, lon_ini, lat_ini, lon_rad, lat_rad, var_ana, .TRUE.)
363	CALL interp_startvar(title, .TRUE., lon_rad,lat_rad, var_ana, &
364	lon_in, lat_in, lon_in2, lat_in2, field)
365	ELSE IF(SIZE(field)/=SIZE(z)) THEN
366	msg='The '//TRIM(msg)//' field we have does not have the right size'
367	CALL abort_gcm(TRIM(modname),msg,1)
368	END IF
369
370	END SUBROUTINE get_var_dyn
371	!
372	!-------------------------------------------------------------------------------
373
374	END SUBROUTINE start_init_dyn
375	!
376	!-------------------------------------------------------------------------------
377
378
379	!-------------------------------------------------------------------------------
380	!
381	SUBROUTINE start_inter_3d(var,lon_in,lat_in,lon_in2,lat_in2,pls_in,var3d)
382	!
383	!-------------------------------------------------------------------------------
384	USE conf_dat_m, ONLY: conf_dat3d
385	USE pchsp_95_m, ONLY: pchsp_95
386	USE pchfe_95_m, ONLY: pchfe_95
387	IMPLICIT NONE
388	!-------------------------------------------------------------------------------
389	! Arguments:
390	CHARACTER(LEN=*), INTENT(IN) :: var
391	REAL, INTENT(IN) :: lon_in(:), lat_in(:) ! dim (iml) (jml)
392	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
393	REAL, INTENT(IN) :: pls_in(:,:,:) ! dim (iml,jml,lml)
394	REAL, INTENT(OUT) :: var3d (:,:,:) ! dim (iml,jml,lml)
395	!-------------------------------------------------------------------------------
396	! Local variables:
397	CHARACTER(LEN=256) :: modname='start_inter_3d'
398	LOGICAL :: skip
399	REAL :: chmin, chmax
400	INTEGER :: iml, jml, lml, jml2, ii, ij, il, ierr
401	INTEGER :: n_extrap ! Extrapolated points number
402	REAL, ALLOCATABLE :: ax(:), lon_rad(:), lon_ini(:), lev_dyn(:), yder(:)
403	REAL, ALLOCATABLE :: ay(:), lat_rad(:), lat_ini(:), var_tmp3d(:,:,:)
404	REAL, ALLOCATABLE, SAVE :: var_ana3d(:,:,:)
405	!-------------------------------------------------------------------------------
406	iml=assert_eq(SIZE(lon_in),SIZE(lon_in2),SIZE(pls_in,1),SIZE(var3d,1),TRIM(modname)//" iml")
407	jml=assert_eq(SIZE(lat_in), SIZE(pls_in,2),SIZE(var3d,2),TRIM(modname)//" jml")
408	lml=assert_eq(SIZE(pls_in,3),SIZE(var3d,3),TRIM(modname)//" lml"); jml2=SIZE(lat_in2)
409
410	WRITE(lunout, *)'Going into flinget to extract the 3D field.'
411	IF(.NOT.ALLOCATED(var_ana3d)) ALLOCATE(var_ana3d(iml_dyn, jml_dyn, llm_dyn))
412	CALL flinget(fid_dyn,var,iml_dyn,jml_dyn,llm_dyn,ttm_dyn,1,1,var_ana3d)
413
414	!--- ANGLES IN DEGREES ARE CONVERTED INTO RADIANS
415	ALLOCATE(lon_ini(iml_dyn), lat_ini(jml_dyn))
416	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
417	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
418
419	!--- FIELDS ARE PROCESSED TO BE ON STANDARD ANGULAR DOMAINS
420	ALLOCATE(lon_rad(iml_dyn), lat_rad(jml_dyn), lev_dyn(llm_dyn))
421	CALL conf_dat3d(var, lon_ini, lat_ini, levdyn_ini, &
422	lon_rad, lat_rad, lev_dyn, var_ana3d, .TRUE.)
423	DEALLOCATE(lon_ini, lat_ini)
424
425	!--- COMPUTE THE REQUIRED FIELDS USING ROUTINE grid_noro
426	ALLOCATE(var_tmp3d(iml,jml,llm_dyn))
427	DO il = 1,llm_dyn
428	CALL interp_startvar(var,il==1,lon_rad,lat_rad,var_ana3d(:,:,il), &
429	lon_in,lat_in,lon_in2,lat_in2,var_tmp3d(:,:,il))
430	END DO
431	DEALLOCATE(lon_rad, lat_rad)
432
433	!--- VERTICAL INTERPOLATION FROM TOP OF ATMOSPHERE TO GROUND
434	ALLOCATE(ax(llm_dyn),ay(llm_dyn),yder(llm_dyn))
435	ax = lev_dyn(llm_dyn:1:-1)
436	skip = .FALSE.
437	n_extrap = 0
438	DO ij=1, jml
439	DO ii=1, iml-1
440	ay = var_tmp3d(ii, ij, llm_dyn:1:-1)
441	yder = pchsp_95(ax, ay, ibeg=2, iend=2, vc_beg=0., vc_end=0.)
442	CALL pchfe_95(ax, ay, yder, skip, pls_in(ii, ij, lml:1:-1), &
443	var3d(ii, ij, lml:1:-1), ierr)
444	IF(ierr<0) CALL abort_gcm(TRIM(modname),'error in pchfe_95',1)
445	n_extrap = n_extrap + ierr
446	END DO
447	END DO
448	IF(n_extrap/=0) WRITE(lunout,*)TRIM(modname)//" pchfe_95: n_extrap=", n_extrap
449	var3d(iml, :, :) = var3d(1, :, :)
450
451	DO il=1, lml
452	CALL minmax(iml*jml, var3d(1, 1, il), chmin, chmax)
453	WRITE(lunout, *)' '//TRIM(var)//' min max l ', il, chmin, chmax
454	END DO
455
456	END SUBROUTINE start_inter_3d
457	!
458	!-------------------------------------------------------------------------------
459
460
461	!-------------------------------------------------------------------------------
462	!
463	SUBROUTINE interp_startvar(nam,ibeg,lon,lat,vari,lon1,lat1,lon2,lat2,varo)
464	!
465	!-------------------------------------------------------------------------------
466	USE inter_barxy_m, ONLY: inter_barxy
467	IMPLICIT NONE
468	!-------------------------------------------------------------------------------
469	! Arguments:
470	CHARACTER(LEN=*), INTENT(IN) :: nam
471	LOGICAL, INTENT(IN) :: ibeg
472	REAL, INTENT(IN) :: lon(:), lat(:) ! dim (ii) (jj)
473	REAL, INTENT(IN) :: vari(:,:) ! dim (ii,jj)
474	REAL, INTENT(IN) :: lon1(:), lat1(:) ! dim (i1) (j1)
475	REAL, INTENT(IN) :: lon2(:), lat2(:) ! dim (i1) (j2)
476	REAL, INTENT(OUT) :: varo(:,:) ! dim (i1) (j1)
477	!-------------------------------------------------------------------------------
478	! Local variables:
479	CHARACTER(LEN=256) :: modname="interp_startvar"
480	INTEGER :: ii, jj, i1, j1, j2
481	REAL, ALLOCATABLE :: vtmp(:,:)
482	!-------------------------------------------------------------------------------
483	ii=assert_eq(SIZE(lon), SIZE(vari,1),TRIM(modname)//" ii")
484	jj=assert_eq(SIZE(lat), SIZE(vari,2),TRIM(modname)//" jj")
485	i1=assert_eq(SIZE(lon1),SIZE(lon2),SIZE(varo,1),TRIM(modname)//" i1")
486	j1=assert_eq(SIZE(lat1), SIZE(varo,2),TRIM(modname)//" j1")
487	j2=SIZE(lat2)
488	ALLOCATE(vtmp(i1-1,j1))
489	IF(ibeg.AND.prt_level>1) THEN
490	WRITE(lunout,*)"---------------------------------------------------------"
491	WRITE(lunout,*)"$$$ Interpolation barycentrique pour "//TRIM(nam)//" $$$"
492	WRITE(lunout,*)"---------------------------------------------------------"
493	END IF
494	CALL inter_barxy(lon, lat(:jj-1), vari, lon2(:i1-1), lat2, vtmp)
495	CALL gr_int_dyn(vtmp, varo, i1-1, j1)
496
497	END SUBROUTINE interp_startvar
498	!
499	!-------------------------------------------------------------------------------
500
501	END MODULE etat0dyn
502	!
503	!*******************************************************************************

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