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etat0dyn_netcdf.F90 @ 2934

Last change on this file since 2934 was 2673, checked in by lguez, 8 years ago

start_time was never set by the program ce0l. So there was a NaN in
variable controle of start.nc. This led to an error in gcm, in debug
mode, at line 274:

IF (start_time /= starttime) then

when reading from this start file.

File size: 21.8 KB

Rev	Line
[2293]	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,&
[2336]	14	! champ, lon_in2, lat_in2)
[2293]	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
[2597]	38	USE comconst_mod, ONLY: pi, cpp, kappa
[2600]	39	USE comvert_mod, ONLY: ap, bp, preff, pressure_exner
[2673]	40	USE temps_mod, ONLY: annee_ref, day_ref, itau_dyn, itau_phy, start_time
[2601]	41
[2293]	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	!
[2336]	61	SUBROUTINE etat0dyn_netcdf(masque, phis)
[2293]	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.
[2336]	68	! Otherwise: compute it.
[2293]	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
[2336]	76	USE infotrac, ONLY: nqtot, tname
[2293]	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
[2361]	88	REAL, DIMENSION(iip1,jjp1) :: psol
[2293]	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	!*******************************************************************************
[2336]	105	CALL start_init_dyn(rlonv, rlatu, rlonu, rlatv, phis, psol)
[2293]	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	!*******************************************************************************
[2299]	119	uvent(:,:,:) = 0.0 ; vvent(:,:,:) = 0.0 ; t3d (:,:,:) = 0.0
[2336]	120	CALL startget_dyn3d('u' ,rlonu,rlatu,pls,y ,uvent,rlonv,rlatv)
[2299]	121	CALL startget_dyn3d('v' ,rlonv,rlatv,pls(:,:jjm,:),y(:,:jjm,:),vvent, &
[2336]	122	& rlonu,rlatu(:jjm))
	123	CALL startget_dyn3d('t' ,rlonv,rlatu,pls,y ,t3d ,rlonu,rlatv)
[2299]	124	tpot(:,:,:)=t3d(:,:,:)
[2336]	125	CALL startget_dyn3d('tpot',rlonv,rlatu,pls,pk,tpot,rlonu,rlatv)
[2293]	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
[2336]	138	CALL startget_dyn3d('q',rlonv,rlatu,pls,qsat,qd,rlonu,rlatv)
[2299]	139	ALLOCATE(q3d(iip1,jjp1,llm,nqtot)); q3d(:,:,:,:)=0.0 ; q3d(:,:,:,1)=qd(:,:,:)
[2293]	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
[2299]	152	q3d(iip1,:,:,:)=q3d(1,:,:,:)
[2293]	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'
[2336]	172	CALL caldyn0( itau, uvent, vvent, tpot, psol, masse, pk, phis, &
	173	phi, w, pbaru, pbarv, time+iday-dayref)
[2673]	174	WRITE(lunout,*)'sortie caldyn0'
	175	start_time = 0.
[2336]	176	#ifdef CPP_PARA
	177	CALL dynredem0_loc( "start.nc", dayref, phis)
	178	#else
[2293]	179	CALL dynredem0( "start.nc", dayref, phis)
[2336]	180	#endif
[2293]	181	WRITE(lunout,*)'sortie dynredem0'
[2336]	182	#ifdef CPP_PARA
	183	CALL dynredem1_loc( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
	184	#else
[2293]	185	CALL dynredem1( "start.nc", 0.0, vvent, uvent, tpot, q3d, masse, psol)
[2336]	186	#endif
[2293]	187	WRITE(lunout,*)'sortie dynredem1'
	188	CALL histclo()
	189
	190	END SUBROUTINE etat0dyn_netcdf
	191	!
	192	!-------------------------------------------------------------------------------
	193
	194
	195	!-------------------------------------------------------------------------------
	196	!
[2299]	197	SUBROUTINE startget_dyn3d(var, lon_in, lat_in, pls, workvar,&
[2336]	198	champ, lon_in2, lat_in2)
[2293]	199	!-------------------------------------------------------------------------------
	200	IMPLICIT NONE
	201	!===============================================================================
	202	! Purpose: Compute some quantities (u,v,t,q,tpot) using variables U,V,TEMP and R
	203	! (3D fields) of file dynfname.
	204	!-------------------------------------------------------------------------------
	205	! Note: An input auxilliary field "workvar" has to be specified in two cases:
[2299]	206	! * for "q": the saturated humidity.
	207	! * for "tpot": the Exner function.
[2293]	208	!===============================================================================
	209	! Arguments:
	210	CHARACTER(LEN=*), INTENT(IN) :: var
	211	REAL, INTENT(IN) :: lon_in(:) ! dim (iml)
	212	REAL, INTENT(IN) :: lat_in(:) ! dim (jml)
	213	REAL, INTENT(IN) :: pls (:, :, :) ! dim (iml, jml, lml)
	214	REAL, INTENT(IN) :: workvar(:, :, :) ! dim (iml, jml, lml)
	215	REAL, INTENT(INOUT) :: champ (:, :, :) ! dim (iml, jml, lml)
	216	REAL, INTENT(IN) :: lon_in2(:) ! dim (iml)
	217	REAL, INTENT(IN) :: lat_in2(:) ! dim (jml2)
	218	!-------------------------------------------------------------------------------
	219	! Local variables:
	220	CHARACTER(LEN=10) :: vname
	221	CHARACTER(LEN=256) :: msg, modname="startget_dyn3d"
	222	INTEGER :: iml, jml, jml2, lml, il
	223	REAL :: xppn, xpps
	224	!-------------------------------------------------------------------------------
[2299]	225	iml=assert_eq([SIZE(lon_in),SIZE(pls,1),SIZE(workvar,1),SIZE(champ,1), &
	226	& SIZE(lon_in2)], TRIM(modname)//" iml")
	227	jml=assert_eq( SIZE(lat_in),SIZE(pls,2),SIZE(workvar,2),SIZE(champ,2), &
	228	& TRIM(modname)//" jml")
	229	lml=assert_eq( SIZE(pls,3),SIZE(workvar,3),SIZE(champ,3), &
	230	& TRIM(modname)//" lml")
	231	jml2=SIZE(lat_in2)
[2293]	232
[2299]	233	!--- CHECK IF THE FIELD IS KNOWN
	234	SELECT CASE(var)
	235	CASE('u'); vname='U'
	236	CASE('v'); vname='V'
	237	CASE('t'); vname='TEMP'
	238	CASE('q'); vname='R'; msg='humidity as the saturated humidity'
	239	CASE('tpot'); msg='potential temperature as the Exner function'
	240	CASE DEFAULT; msg='No rule to extract variable '//TRIM(var)
	241	CALL abort_gcm(modname,TRIM(msg)//' from any data set',1)
	242	END SELECT
[2293]	243
[2299]	244	!--- CHECK IF SOMETHING IS MISSING
	245	IF((var=='tpot'.OR.var=='q').AND.MINVAL(workvar)==MAXVAL(workvar)) THEN
	246	msg='Could not compute '//TRIM(msg)//' is missing or constant.'
	247	CALL abort_gcm(modname,TRIM(msg),1)
	248	END IF
[2293]	249
[2299]	250	!--- INTERPOLATE 3D FIELD IF NEEDED
	251	IF(var/='tpot') CALL start_inter_3d(TRIM(vname),lon_in,lat_in,lon_in2, &
[2336]	252	lat_in2,pls,champ)
[2293]	253
[2299]	254	!--- COMPUTE THE REQUIRED FILED
	255	SELECT CASE(var)
	256	CASE('u'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cu(:,1:jml); END DO
	257	champ(iml,:,:)=champ(1,:,:) !--- Eastward wind
[2293]	258
[2299]	259	CASE('v'); DO il=1,lml; champ(:,:,il)=champ(:,:,il)*cv(:,1:jml); END DO
	260	champ(iml,:,:)=champ(1,:,:) !--- Northward wind
[2293]	261
[2299]	262	CASE('tpot','q')
	263	IF(var=='tpot') THEN; champ=champ*cpp/workvar !--- Potential temperature
	264	ELSE; champ=champ.01workvar !--- Relative humidity
	265	WHERE(champ<0.) champ=1.0E-10
	266	END IF
	267	DO il=1,lml
	268	xppn = SUM(aire(:,1 )*champ(:,1 ,il))/apoln
	269	xpps = SUM(aire(:,jml)*champ(:,jml,il))/apols
	270	champ(:,1 ,il) = xppn
	271	champ(:,jml,il) = xpps
	272	END DO
	273	END SELECT
[2293]	274
	275	END SUBROUTINE startget_dyn3d
	276	!
	277	!-------------------------------------------------------------------------------
	278
	279
	280	!-------------------------------------------------------------------------------
	281	!
[2336]	282	SUBROUTINE start_init_dyn(lon_in,lat_in,lon_in2,lat_in2,zs,psol)
[2293]	283	!
	284	!-------------------------------------------------------------------------------
	285	IMPLICIT NONE
	286	!===============================================================================
	287	! Purpose: Compute psol, knowing phis.
	288	!===============================================================================
	289	! Arguments:
	290	REAL, INTENT(IN) :: lon_in (:), lat_in (:) ! dim (iml) (jml)
	291	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
	292	REAL, INTENT(IN) :: zs (:,:) ! dim (iml,jml)
	293	REAL, INTENT(OUT) :: psol(:,:) ! dim (iml,jml)
	294	!-------------------------------------------------------------------------------
	295	! Local variables:
	296	CHARACTER(LEN=256) :: modname='start_init_dyn'
	297	REAL :: date, dt
	298	INTEGER :: iml, jml, jml2, itau(1)
	299	REAL, ALLOCATABLE :: lon_rad(:), lon_ini(:), var_ana(:,:)
	300	REAL, ALLOCATABLE :: lat_rad(:), lat_ini(:)
	301	REAL, ALLOCATABLE :: z(:,:), ps(:,:), ts(:,:)
	302	!-------------------------------------------------------------------------------
	303	iml=assert_eq(SIZE(lon_in),SIZE(zs,1),SIZE(psol,1),SIZE(lon_in2), &
	304	& TRIM(modname)//" iml")
	305	jml=assert_eq(SIZE(lat_in),SIZE(zs,2),SIZE(psol,2),TRIM(modname)//" jml")
	306	jml2=SIZE(lat_in2)
	307
	308	WRITE(lunout,*) 'Opening the surface analysis'
	309	CALL flininfo(dynfname, iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn)
	310	WRITE(lunout,*) 'Values read: ', iml_dyn, jml_dyn, llm_dyn, ttm_dyn
	311
	312	ALLOCATE(lon_dyn(iml_dyn,jml_dyn), lat_dyn(iml_dyn,jml_dyn))
	313	ALLOCATE(levdyn_ini(llm_dyn))
	314	CALL flinopen(dynfname, .FALSE., iml_dyn, jml_dyn, llm_dyn, &
	315	lon_dyn,lat_dyn,levdyn_ini,ttm_dyn,itau,date,dt,fid_dyn)
	316
	317	!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
	318	ALLOCATE(lon_ini(iml_dyn),lat_ini(jml_dyn))
	319	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
	320	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
	321
	322	ALLOCATE(var_ana(iml_dyn,jml_dyn),lon_rad(iml_dyn),lat_rad(jml_dyn))
	323	CALL get_var_dyn('Z',z) !--- SURFACE GEOPOTENTIAL
	324	CALL get_var_dyn('SP',ps) !--- SURFACE PRESSURE
	325	CALL get_var_dyn('ST',ts) !--- SURFACE TEMPERATURE
	326	! CALL flinclo(fid_dyn)
	327	DEALLOCATE(var_ana,lon_rad,lat_rad,lon_ini,lat_ini)
	328
	329	!--- PSOL IS COMPUTED IN PASCALS
	330	psol(:iml-1,:) = ps(:iml-1,:)*(1.0+(z(:iml-1,:)-zs(:iml-1,:))/287.0 &
	331	& /ts(:iml-1,:))
	332	psol(iml,:)=psol(1,:)
	333	DEALLOCATE(z,ps,ts)
	334	psol(:,1 )=SUM(aire(1:iml-1,1 )*psol(1:iml-1,1 ))/apoln !--- NORTH POLE
	335	psol(:,jml)=SUM(aire(1:iml-1,jml)*psol(1:iml-1,jml))/apols !--- SOUTH POLE
	336
	337	CONTAINS
	338
	339	!-------------------------------------------------------------------------------
	340	!
	341	SUBROUTINE get_var_dyn(title,field)
	342	!
	343	!-------------------------------------------------------------------------------
	344	USE conf_dat_m, ONLY: conf_dat2d
	345	IMPLICIT NONE
	346	!-------------------------------------------------------------------------------
	347	! Arguments:
	348	CHARACTER(LEN=*), INTENT(IN) :: title
	349	REAL, ALLOCATABLE, INTENT(INOUT) :: field(:,:)
	350	!-------------------------------------------------------------------------------
	351	! Local variables:
	352	CHARACTER(LEN=256) :: msg
	353	INTEGER :: tllm
	354	!-------------------------------------------------------------------------------
	355	SELECT CASE(title)
	356	CASE('Z'); tllm=0; msg='geopotential'
	357	CASE('SP'); tllm=0; msg='surface pressure'
	358	CASE('ST'); tllm=llm_dyn; msg='temperature'
	359	END SELECT
	360	IF(.NOT.ALLOCATED(field)) THEN
	361	ALLOCATE(field(iml,jml))
	362	CALL flinget(fid_dyn, title, iml_dyn,jml_dyn, tllm, ttm_dyn, 1, 1, var_ana)
[2336]	363	CALL conf_dat2d(title, lon_ini, lat_ini, lon_rad, lat_rad, var_ana, .TRUE.)
	364	CALL interp_startvar(title, .TRUE., lon_rad,lat_rad, var_ana, &
	365	lon_in, lat_in, lon_in2, lat_in2, field)
[2293]	366	ELSE IF(SIZE(field)/=SIZE(z)) THEN
	367	msg='The '//TRIM(msg)//' field we have does not have the right size'
	368	CALL abort_gcm(TRIM(modname),msg,1)
	369	END IF
	370
	371	END SUBROUTINE get_var_dyn
	372	!
	373	!-------------------------------------------------------------------------------
	374
	375	END SUBROUTINE start_init_dyn
	376	!
	377	!-------------------------------------------------------------------------------
	378
	379
	380	!-------------------------------------------------------------------------------
	381	!
[2336]	382	SUBROUTINE start_inter_3d(var,lon_in,lat_in,lon_in2,lat_in2,pls_in,var3d)
[2293]	383	!
	384	!-------------------------------------------------------------------------------
	385	USE conf_dat_m, ONLY: conf_dat3d
	386	USE pchsp_95_m, ONLY: pchsp_95
	387	USE pchfe_95_m, ONLY: pchfe_95
	388	IMPLICIT NONE
	389	!-------------------------------------------------------------------------------
	390	! Arguments:
	391	CHARACTER(LEN=*), INTENT(IN) :: var
	392	REAL, INTENT(IN) :: lon_in(:), lat_in(:) ! dim (iml) (jml)
	393	REAL, INTENT(IN) :: lon_in2(:), lat_in2(:) ! dim (iml) (jml2)
	394	REAL, INTENT(IN) :: pls_in(:,:,:) ! dim (iml,jml,lml)
	395	REAL, INTENT(OUT) :: var3d (:,:,:) ! dim (iml,jml,lml)
	396	!-------------------------------------------------------------------------------
	397	! Local variables:
	398	CHARACTER(LEN=256) :: modname='start_inter_3d'
	399	LOGICAL :: skip
	400	REAL :: chmin, chmax
	401	INTEGER :: iml, jml, lml, jml2, ii, ij, il, ierr
	402	INTEGER :: n_extrap ! Extrapolated points number
	403	REAL, ALLOCATABLE :: ax(:), lon_rad(:), lon_ini(:), lev_dyn(:), yder(:)
	404	REAL, ALLOCATABLE :: ay(:), lat_rad(:), lat_ini(:), var_tmp3d(:,:,:)
	405	REAL, ALLOCATABLE, SAVE :: var_ana3d(:,:,:)
	406	!-------------------------------------------------------------------------------
	407	iml=assert_eq(SIZE(lon_in),SIZE(lon_in2),SIZE(pls_in,1),SIZE(var3d,1),TRIM(modname)//" iml")
	408	jml=assert_eq(SIZE(lat_in), SIZE(pls_in,2),SIZE(var3d,2),TRIM(modname)//" jml")
	409	lml=assert_eq(SIZE(pls_in,3),SIZE(var3d,3),TRIM(modname)//" lml"); jml2=SIZE(lat_in2)
	410
	411	WRITE(lunout, *)'Going into flinget to extract the 3D field.'
	412	IF(.NOT.ALLOCATED(var_ana3d)) ALLOCATE(var_ana3d(iml_dyn, jml_dyn, llm_dyn))
	413	CALL flinget(fid_dyn,var,iml_dyn,jml_dyn,llm_dyn,ttm_dyn,1,1,var_ana3d)
	414
	415	!--- ANGLES IN DEGREES ARE CONVERTED INTO RADIANS
	416	ALLOCATE(lon_ini(iml_dyn), lat_ini(jml_dyn))
	417	lon_ini(:)=lon_dyn(:,1); IF(MAXVAL(lon_dyn)>pi) lon_ini=lon_ini*deg2rad
	418	lat_ini(:)=lat_dyn(1,:); IF(MAXVAL(lat_dyn)>pi) lat_ini=lat_ini*deg2rad
	419
	420	!--- FIELDS ARE PROCESSED TO BE ON STANDARD ANGULAR DOMAINS
	421	ALLOCATE(lon_rad(iml_dyn), lat_rad(jml_dyn), lev_dyn(llm_dyn))
	422	CALL conf_dat3d(var, lon_ini, lat_ini, levdyn_ini, &
[2336]	423	lon_rad, lat_rad, lev_dyn, var_ana3d, .TRUE.)
[2293]	424	DEALLOCATE(lon_ini, lat_ini)
	425
	426	!--- COMPUTE THE REQUIRED FIELDS USING ROUTINE grid_noro
	427	ALLOCATE(var_tmp3d(iml,jml,llm_dyn))
	428	DO il = 1,llm_dyn
[2336]	429	CALL interp_startvar(var,il==1,lon_rad,lat_rad,var_ana3d(:,:,il), &
[2293]	430	lon_in,lat_in,lon_in2,lat_in2,var_tmp3d(:,:,il))
	431	END DO
	432	DEALLOCATE(lon_rad, lat_rad)
	433
	434	!--- VERTICAL INTERPOLATION FROM TOP OF ATMOSPHERE TO GROUND
	435	ALLOCATE(ax(llm_dyn),ay(llm_dyn),yder(llm_dyn))
	436	ax = lev_dyn(llm_dyn:1:-1)
	437	skip = .FALSE.
	438	n_extrap = 0
	439	DO ij=1, jml
	440	DO ii=1, iml-1
	441	ay = var_tmp3d(ii, ij, llm_dyn:1:-1)
	442	yder = pchsp_95(ax, ay, ibeg=2, iend=2, vc_beg=0., vc_end=0.)
	443	CALL pchfe_95(ax, ay, yder, skip, pls_in(ii, ij, lml:1:-1), &
	444	var3d(ii, ij, lml:1:-1), ierr)
	445	IF(ierr<0) CALL abort_gcm(TRIM(modname),'error in pchfe_95',1)
	446	n_extrap = n_extrap + ierr
	447	END DO
	448	END DO
	449	IF(n_extrap/=0) WRITE(lunout,*)TRIM(modname)//" pchfe_95: n_extrap=", n_extrap
	450	var3d(iml, :, :) = var3d(1, :, :)
	451
	452	DO il=1, lml
	453	CALL minmax(iml*jml, var3d(1, 1, il), chmin, chmax)
	454	WRITE(lunout, *)' '//TRIM(var)//' min max l ', il, chmin, chmax
	455	END DO
	456
	457	END SUBROUTINE start_inter_3d
	458	!
	459	!-------------------------------------------------------------------------------
	460
	461
	462	!-------------------------------------------------------------------------------
	463	!
[2336]	464	SUBROUTINE interp_startvar(nam,ibeg,lon,lat,vari,lon1,lat1,lon2,lat2,varo)
[2293]	465	!
	466	!-------------------------------------------------------------------------------
	467	USE inter_barxy_m, ONLY: inter_barxy
	468	IMPLICIT NONE
	469	!-------------------------------------------------------------------------------
	470	! Arguments:
	471	CHARACTER(LEN=*), INTENT(IN) :: nam
[2336]	472	LOGICAL, INTENT(IN) :: ibeg
[2293]	473	REAL, INTENT(IN) :: lon(:), lat(:) ! dim (ii) (jj)
	474	REAL, INTENT(IN) :: vari(:,:) ! dim (ii,jj)
	475	REAL, INTENT(IN) :: lon1(:), lat1(:) ! dim (i1) (j1)
	476	REAL, INTENT(IN) :: lon2(:), lat2(:) ! dim (i1) (j2)
	477	REAL, INTENT(OUT) :: varo(:,:) ! dim (i1) (j1)
	478	!-------------------------------------------------------------------------------
	479	! Local variables:
	480	CHARACTER(LEN=256) :: modname="interp_startvar"
	481	INTEGER :: ii, jj, i1, j1, j2
	482	REAL, ALLOCATABLE :: vtmp(:,:)
	483	!-------------------------------------------------------------------------------
	484	ii=assert_eq(SIZE(lon), SIZE(vari,1),TRIM(modname)//" ii")
	485	jj=assert_eq(SIZE(lat), SIZE(vari,2),TRIM(modname)//" jj")
	486	i1=assert_eq(SIZE(lon1),SIZE(lon2),SIZE(varo,1),TRIM(modname)//" i1")
	487	j1=assert_eq(SIZE(lat1), SIZE(varo,2),TRIM(modname)//" j1")
	488	j2=SIZE(lat2)
	489	ALLOCATE(vtmp(i1-1,j1))
[2336]	490	IF(ibeg.AND.prt_level>1) THEN
	491	WRITE(lunout,*)"---------------------------------------------------------"
	492	WRITE(lunout,*)"$$$ Interpolation barycentrique pour "//TRIM(nam)//" $$$"
	493	WRITE(lunout,*)"---------------------------------------------------------"
[2293]	494	END IF
[2336]	495	CALL inter_barxy(lon, lat(:jj-1), vari, lon2(:i1-1), lat2, vtmp)
[2293]	496	CALL gr_int_dyn(vtmp, varo, i1-1, j1)
	497
	498	END SUBROUTINE interp_startvar
	499	!
	500	!-------------------------------------------------------------------------------
	501
	502	END MODULE etat0dyn
	503	!
	504	!*******************************************************************************

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