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leapfrog.F @ 1455

Last change on this file since 1455 was 1454, checked in by Laurent Fairhead, 14 years ago

Merge of LMDZ5V1.0-dev branch r1453 into LMDZ5 trunk r1434

Fusion entre la version r1453 de la branche de développement LMDZ5V1.0-dev
et le tronc LMDZ5 (r1434)

Property svn:eol-style set to native
Property svn:keywords set to Author Date Id Revision

File size: 23.5 KB

Rev	Line
[524]	1	!
[1279]	2	! $Id: leapfrog.F 1454 2010-11-18 12:01:24Z fairhead $
	3	!
[524]	4	c
	5	c
[1146]	6	SUBROUTINE leapfrog(ucov,vcov,teta,ps,masse,phis,q,clesphy0,
[559]	7	& time_0)
[524]	8
	9
[692]	10	cIM : pour sortir les param. du modele dans un fis. netcdf 110106
[1146]	11	#ifdef CPP_IOIPSL
	12	use IOIPSL
	13	#endif
	14	USE infotrac
[1279]	15	USE guide_mod, ONLY : guide_main
	16	USE write_field
[1403]	17	USE control_mod
[524]	18	IMPLICIT NONE
	19
	20	c ...... Version du 10/01/98 ..........
	21
	22	c avec coordonnees verticales hybrides
	23	c avec nouveaux operat. dissipation * ( gradiv2,divgrad2,nxgraro2 )
	24
	25	c=======================================================================
	26	c
	27	c Auteur: P. Le Van /L. Fairhead/F.Hourdin
	28	c -------
	29	c
	30	c Objet:
	31	c ------
	32	c
	33	c GCM LMD nouvelle grille
	34	c
	35	c=======================================================================
	36	c
	37	c ... Dans inigeom , nouveaux calculs pour les elongations cu , cv
	38	c et possibilite d'appeler une fonction f(y) a derivee tangente
	39	c hyperbolique a la place de la fonction a derivee sinusoidale.
	40
	41	c ... Possibilite de choisir le shema pour l'advection de
	42	c q , en modifiant iadv dans traceur.def (10/02) .
	43	c
	44	c Pour Van-Leer + Vapeur d'eau saturee, iadv(1)=4. (F.Codron,10/99)
	45	c Pour Van-Leer iadv=10
	46	c
	47	c-----------------------------------------------------------------------
	48	c Declarations:
	49	c -------------
	50
	51	#include "dimensions.h"
	52	#include "paramet.h"
	53	#include "comconst.h"
	54	#include "comdissnew.h"
	55	#include "comvert.h"
	56	#include "comgeom.h"
	57	#include "logic.h"
	58	#include "temps.h"
	59	#include "ener.h"
	60	#include "description.h"
	61	#include "serre.h"
[1403]	62	!#include "com_io_dyn.h"
[524]	63	#include "iniprint.h"
	64	#include "academic.h"
	65
[956]	66	! FH 2008/05/09 On elimine toutes les clefs physiques dans la dynamique
	67	! #include "clesphys.h"
[692]	68
[524]	69	INTEGER longcles
	70	PARAMETER ( longcles = 20 )
	71	REAL clesphy0( longcles )
	72
	73	real zqmin,zqmax
	74	INTEGER nbetatmoy, nbetatdem,nbetat
	75
	76	c variables dynamiques
	77	REAL vcov(ip1jm,llm),ucov(ip1jmp1,llm) ! vents covariants
	78	REAL teta(ip1jmp1,llm) ! temperature potentielle
[1146]	79	REAL q(ip1jmp1,llm,nqtot) ! champs advectes
[524]	80	REAL ps(ip1jmp1) ! pression au sol
	81	REAL p (ip1jmp1,llmp1 ) ! pression aux interfac.des couches
	82	REAL pks(ip1jmp1) ! exner au sol
	83	REAL pk(ip1jmp1,llm) ! exner au milieu des couches
	84	REAL pkf(ip1jmp1,llm) ! exner filt.au milieu des couches
	85	REAL masse(ip1jmp1,llm) ! masse d'air
	86	REAL phis(ip1jmp1) ! geopotentiel au sol
	87	REAL phi(ip1jmp1,llm) ! geopotentiel
	88	REAL w(ip1jmp1,llm) ! vitesse verticale
	89
	90	c variables dynamiques intermediaire pour le transport
	91	REAL pbaru(ip1jmp1,llm),pbarv(ip1jm,llm) !flux de masse
	92
	93	c variables dynamiques au pas -1
	94	REAL vcovm1(ip1jm,llm),ucovm1(ip1jmp1,llm)
	95	REAL tetam1(ip1jmp1,llm),psm1(ip1jmp1)
	96	REAL massem1(ip1jmp1,llm)
	97
	98	c tendances dynamiques
	99	REAL dv(ip1jm,llm),du(ip1jmp1,llm)
[1146]	100	REAL dteta(ip1jmp1,llm),dq(ip1jmp1,llm,nqtot),dp(ip1jmp1)
[524]	101
	102	c tendances de la dissipation
	103	REAL dvdis(ip1jm,llm),dudis(ip1jmp1,llm)
	104	REAL dtetadis(ip1jmp1,llm)
	105
	106	c tendances physiques
	107	REAL dvfi(ip1jm,llm),dufi(ip1jmp1,llm)
[1146]	108	REAL dtetafi(ip1jmp1,llm),dqfi(ip1jmp1,llm,nqtot),dpfi(ip1jmp1)
[524]	109
	110	c variables pour le fichier histoire
	111	REAL dtav ! intervalle de temps elementaire
	112
	113	REAL tppn(iim),tpps(iim),tpn,tps
	114	c
	115	INTEGER itau,itaufinp1,iav
[1279]	116	! INTEGER iday ! jour julien
	117	REAL time
[524]	118
	119	REAL SSUM
	120	REAL time_0 , finvmaold(ip1jmp1,llm)
	121
[566]	122	cym LOGICAL lafin
	123	LOGICAL :: lafin=.false.
[524]	124	INTEGER ij,iq,l
	125	INTEGER ik
	126
	127	real time_step, t_wrt, t_ops
	128
[1279]	129	! REAL rdayvrai,rdaym_ini
	130	! jD_cur: jour julien courant
	131	! jH_cur: heure julienne courante
	132	REAL :: jD_cur, jH_cur
	133	INTEGER :: an, mois, jour
	134	REAL :: secondes
	135
[524]	136	LOGICAL first,callinigrads
[692]	137	cIM : pour sortir les param. du modele dans un fis. netcdf 110106
	138	save first
	139	data first/.true./
[1279]	140	real dt_cum
[692]	141	character*10 infile
	142	integer zan, tau0, thoriid
	143	integer nid_ctesGCM
	144	save nid_ctesGCM
	145	real degres
	146	real rlong(iip1), rlatg(jjp1)
	147	real zx_tmp_2d(iip1,jjp1)
	148	integer ndex2d(iip1*jjp1)
	149	logical ok_sync
	150	parameter (ok_sync = .true.)
[524]	151
	152	data callinigrads/.true./
	153	character*10 string10
	154
	155	REAL alpha(ip1jmp1,llm),beta(ip1jmp1,llm)
[960]	156	REAL :: flxw(ip1jmp1,llm) ! flux de masse verticale
[524]	157
	158	c+jld variables test conservation energie
	159	REAL ecin(ip1jmp1,llm),ecin0(ip1jmp1,llm)
	160	C Tendance de la temp. potentiel d (theta)/ d t due a la
	161	C tansformation d'energie cinetique en energie thermique
	162	C cree par la dissipation
	163	REAL dtetaecdt(ip1jmp1,llm)
	164	REAL vcont(ip1jm,llm),ucont(ip1jmp1,llm)
	165	REAL vnat(ip1jm,llm),unat(ip1jmp1,llm)
	166	REAL d_h_vcol, d_qt, d_qw, d_ql, d_ec
	167	CHARACTER*15 ztit
[692]	168	!IM INTEGER ip_ebil_dyn ! PRINT level for energy conserv. diag.
	169	!IM SAVE ip_ebil_dyn
	170	!IM DATA ip_ebil_dyn/0/
[524]	171	c-jld
	172
	173	character*80 dynhist_file, dynhistave_file
[1146]	174	character(len=20) :: modname
[524]	175	character*80 abort_message
	176
	177	logical dissip_conservative
	178	save dissip_conservative
	179	data dissip_conservative/.true./
	180
	181	LOGICAL prem
	182	save prem
	183	DATA prem/.true./
	184	INTEGER testita
	185	PARAMETER (testita = 9)
	186
[1286]	187	logical , parameter :: flag_verif = .false.
[999]	188
	189
[825]	190	integer itau_w ! pas de temps ecriture = itap + itau_phy
	191
	192
[524]	193	itaufin = nday*day_step
	194	itaufinp1 = itaufin +1
[1146]	195	modname="leapfrog"
	196
[524]	197
	198	itau = 0
[1403]	199	c iday = day_ini+itau/day_step
	200	c time = REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
	201	c IF(time.GT.1.) THEN
	202	c time = time-1.
	203	c iday = iday+1
	204	c ENDIF
[524]	205
	206
	207	c-----------------------------------------------------------------------
	208	c On initialise la pression et la fonction d'Exner :
	209	c --------------------------------------------------
	210
[1454]	211	dq(:,:,:)=0.
[524]	212	CALL pression ( ip1jmp1, ap, bp, ps, p )
	213	CALL exner_hyb( ip1jmp1, ps, p,alpha,beta, pks, pk, pkf )
	214
	215	c-----------------------------------------------------------------------
	216	c Debut de l'integration temporelle:
	217	c ----------------------------------
	218
	219	1 CONTINUE
	220
[1279]	221	jD_cur = jD_ref + day_ini - day_ref + int (itau * dtvr / daysec)
	222	jH_cur = jH_ref + &
	223	& (itau * dtvr / daysec - int(itau * dtvr / daysec))
[524]	224
[1279]	225
[524]	226	#ifdef CPP_IOIPSL
[1279]	227	if (ok_guide) then
	228	call guide_main(itau,ucov,vcov,teta,q,masse,ps)
[524]	229	endif
	230	#endif
[1279]	231
	232
[524]	233	c
	234	c IF( MOD( itau, 10* day_step ).EQ.0 ) THEN
	235	c CALL test_period ( ucov,vcov,teta,q,p,phis )
	236	c PRINT *,' ---- Test_period apres continue OK ! -----', itau
	237	c ENDIF
	238	c
[1146]	239
	240	! Save fields obtained at previous time step as '...m1'
[524]	241	CALL SCOPY( ijmllm ,vcov , 1, vcovm1 , 1 )
	242	CALL SCOPY( ijp1llm,ucov , 1, ucovm1 , 1 )
	243	CALL SCOPY( ijp1llm,teta , 1, tetam1 , 1 )
	244	CALL SCOPY( ijp1llm,masse, 1, massem1, 1 )
	245	CALL SCOPY( ip1jmp1, ps , 1, psm1 , 1 )
	246
	247	forward = .TRUE.
	248	leapf = .FALSE.
	249	dt = dtvr
	250
	251	c ... P.Le Van .26/04/94 ....
	252
	253	CALL SCOPY ( ijp1llm, masse, 1, finvmaold, 1 )
	254	CALL filtreg ( finvmaold ,jjp1, llm, -2,2, .TRUE., 1 )
	255
	256	2 CONTINUE
	257
	258	c-----------------------------------------------------------------------
	259
	260	c date:
	261	c -----
	262
	263
	264	c gestion des appels de la physique et des dissipations:
	265	c ------------------------------------------------------
	266	c
	267	c ... P.Le Van ( 6/02/95 ) ....
	268
	269	apphys = .FALSE.
	270	statcl = .FALSE.
	271	conser = .FALSE.
	272	apdiss = .FALSE.
	273
	274	IF( purmats ) THEN
[1403]	275	! Purely Matsuno time stepping
[524]	276	IF( MOD(itau,iconser) .EQ.0.AND. forward ) conser = .TRUE.
	277	IF( MOD(itau,idissip ).EQ.0.AND..NOT.forward ) apdiss = .TRUE.
	278	IF( MOD(itau,iphysiq ).EQ.0.AND..NOT.forward
[1060]	279	s .and. iflag_phys.EQ.1 ) apphys = .TRUE.
[524]	280	ELSE
[1403]	281	! Leapfrog/Matsuno time stepping
[524]	282	IF( MOD(itau ,iconser) .EQ. 0 ) conser = .TRUE.
	283	IF( MOD(itau+1,idissip) .EQ. 0 ) apdiss = .TRUE.
[1060]	284	IF( MOD(itau+1,iphysiq).EQ.0.AND.iflag_phys.EQ.1) apphys=.TRUE.
[524]	285	END IF
	286
[1403]	287	! Ehouarn: for Shallow Water case (ie: 1 vertical layer),
	288	! supress dissipation step
	289	if (llm.eq.1) then
	290	apdiss=.false.
	291	endif
	292
[524]	293	c-----------------------------------------------------------------------
	294	c calcul des tendances dynamiques:
	295	c --------------------------------
	296
	297	CALL geopot ( ip1jmp1, teta , pk , pks, phis , phi )
	298
[1279]	299	time = jD_cur + jH_cur
[524]	300	CALL caldyn
	301	$ ( itau,ucov,vcov,teta,ps,masse,pk,pkf,phis ,
[1279]	302	$ phi,conser,du,dv,dteta,dp,w, pbaru,pbarv, time )
[524]	303
[1279]	304
[524]	305	c-----------------------------------------------------------------------
	306	c calcul des tendances advection des traceurs (dont l'humidite)
	307	c -------------------------------------------------------------
	308
	309	IF( forward. OR . leapf ) THEN
	310
[960]	311	CALL caladvtrac(q,pbaru,pbarv,
	312	* p, masse, dq, teta,
	313	. flxw, pk)
	314
[524]	315	IF (offline) THEN
	316	Cmaf stokage du flux de masse pour traceurs OFF-LINE
	317
	318	#ifdef CPP_IOIPSL
[541]	319	CALL fluxstokenc(pbaru,pbarv,masse,teta,phi,phis,
	320	. dtvr, itau)
[524]	321	#endif
	322
	323
[1146]	324	ENDIF ! of IF (offline)
[524]	325	c
[1146]	326	ENDIF ! of IF( forward. OR . leapf )
[524]	327
	328
	329	c-----------------------------------------------------------------------
	330	c integrations dynamique et traceurs:
	331	c ----------------------------------
	332
	333
	334	CALL integrd ( 2,vcovm1,ucovm1,tetam1,psm1,massem1 ,
	335	$ dv,du,dteta,dq,dp,vcov,ucov,teta,q,ps,masse,phis ,
	336	$ finvmaold )
	337
	338
	339	c .P.Le Van (26/04/94 ajout de finvpold dans l'appel d'integrd)
	340	c
	341	c-----------------------------------------------------------------------
	342	c calcul des tendances physiques:
	343	c -------------------------------
	344	c ######## P.Le Van ( Modif le 6/02/95 ) ###########
	345	c
	346	IF( purmats ) THEN
	347	IF( itau.EQ.itaufin.AND..NOT.forward ) lafin = .TRUE.
	348	ELSE
	349	IF( itau+1. EQ. itaufin ) lafin = .TRUE.
	350	ENDIF
	351	c
	352	c
	353	IF( apphys ) THEN
	354	c
	355	c ....... Ajout P.Le Van ( 17/04/96 ) ...........
	356	c
	357
	358	CALL pression ( ip1jmp1, ap, bp, ps, p )
	359	CALL exner_hyb( ip1jmp1, ps, p,alpha,beta,pks, pk, pkf )
	360
[1279]	361	! rdaym_ini = itau * dtvr / daysec
	362	! rdayvrai = rdaym_ini + day_ini
	363	jD_cur = jD_ref + day_ini - day_ref
	364	$ + int (itau * dtvr / daysec)
	365	jH_cur = jH_ref + &
	366	& (itau * dtvr / daysec - int(itau * dtvr / daysec))
	367	! write(lunout,*)'itau, jD_cur = ', itau, jD_cur, jH_cur
	368	! call ju2ymds(jD_cur+jH_cur, an, mois, jour, secondes)
	369	! write(lunout,*)'current date = ',an, mois, jour, secondes
[524]	370
	371	c rajout debug
	372	c lafin = .true.
	373
	374
	375	c Inbterface avec les routines de phylmd (phymars ... )
	376	c -----------------------------------------------------
	377
	378	c+jld
	379
	380	c Diagnostique de conservation de l'énergie : initialisation
[1146]	381	IF (ip_ebil_dyn.ge.1 ) THEN
[524]	382	ztit='bil dyn'
[1146]	383	! Ehouarn: be careful, diagedyn is Earth-specific (includes ../phylmd/..)!
	384	IF (planet_type.eq."earth") THEN
	385	CALL diagedyn(ztit,2,1,1,dtphys
	386	& , ucov , vcov , ps, p ,pk , teta , q(:,:,1), q(:,:,2))
	387	ENDIF
	388	ENDIF ! of IF (ip_ebil_dyn.ge.1 )
[524]	389	c-jld
[1146]	390	#ifdef CPP_IOIPSL
[692]	391	cIM : pour sortir les param. du modele dans un fis. netcdf 110106
[1146]	392	IF (first) THEN
	393	first=.false.
[692]	394	#include "ini_paramLMDZ_dyn.h"
[1146]	395	ENDIF
[692]	396	c
	397	#include "write_paramLMDZ_dyn.h"
	398	c
[1146]	399	#endif
	400	! #endif of #ifdef CPP_IOIPSL
[1279]	401	CALL calfis( lafin , jD_cur, jH_cur,
[524]	402	$ ucov,vcov,teta,q,masse,ps,p,pk,phis,phi ,
[960]	403	$ du,dv,dteta,dq,
[524]	404	$ flxw,
	405	$ clesphy0, dufi,dvfi,dtetafi,dqfi,dpfi )
	406
[1146]	407	IF (ok_strato) THEN
[1279]	408	CALL top_bound( vcov,ucov,teta,masse,dufi,dvfi,dtetafi)
[1146]	409	ENDIF
[999]	410
[524]	411	c ajout des tendances physiques:
	412	c ------------------------------
[1146]	413	CALL addfi( dtphys, leapf, forward ,
[524]	414	$ ucov, vcov, teta , q ,ps ,
	415	$ dufi, dvfi, dtetafi , dqfi ,dpfi )
	416	c
	417	c Diagnostique de conservation de l'énergie : difference
[1146]	418	IF (ip_ebil_dyn.ge.1 ) THEN
[524]	419	ztit='bil phys'
[1146]	420	IF (planet_type.eq."earth") THEN
	421	CALL diagedyn(ztit,2,1,1,dtphys
	422	& , ucov , vcov , ps, p ,pk , teta , q(:,:,1), q(:,:,2))
	423	ENDIF
	424	ENDIF ! of IF (ip_ebil_dyn.ge.1 )
	425
[1060]	426	ENDIF ! of IF( apphys )
[524]	427
[1146]	428	IF(iflag_phys.EQ.2) THEN ! "Newtonian" case
[1454]	429	! Academic case : Simple friction and Newtonan relaxation
	430	! -------------------------------------------------------
	431	DO l=1,llm
	432	DO ij=1,ip1jmp1
	433	teta(ij,l)=teta(ij,l)-dtvr*
	434	& (teta(ij,l)-tetarappel(ij,l))(knewt_g+knewt_t(l)clat4(ij))
	435	ENDDO
	436	ENDDO ! of DO l=1,llm
	437	call friction(ucov,vcov,dtvr)
	438
	439	! Sponge layer (if any)
	440	IF (ok_strato) THEN
	441	dufi(:,:)=0.
	442	dvfi(:,:)=0.
	443	dtetafi(:,:)=0.
	444	dqfi(:,:,:)=0.
	445	dpfi(:)=0.
	446	CALL top_bound(vcov,ucov,teta,masse,dufi,dvfi,dtetafi)
	447	CALL addfi( dtvr, leapf, forward ,
	448	$ ucov, vcov, teta , q ,ps ,
	449	$ dufi, dvfi, dtetafi , dqfi ,dpfi )
	450	ENDIF ! of IF (ok_strato)
	451	ENDIF ! of IF (iflag_phys.EQ.2)
[524]	452
	453
	454	c-jld
	455
	456	CALL pression ( ip1jmp1, ap, bp, ps, p )
	457	CALL exner_hyb( ip1jmp1, ps, p,alpha,beta, pks, pk, pkf )
	458
	459
	460	c-----------------------------------------------------------------------
	461	c dissipation horizontale et verticale des petites echelles:
	462	c ----------------------------------------------------------
	463
	464	IF(apdiss) THEN
	465
	466
	467	c calcul de l'energie cinetique avant dissipation
	468	call covcont(llm,ucov,vcov,ucont,vcont)
	469	call enercin(vcov,ucov,vcont,ucont,ecin0)
	470
	471	c dissipation
	472	CALL dissip(vcov,ucov,teta,p,dvdis,dudis,dtetadis)
	473	ucov=ucov+dudis
	474	vcov=vcov+dvdis
	475	c teta=teta+dtetadis
	476
	477
	478	c------------------------------------------------------------------------
	479	if (dissip_conservative) then
	480	C On rajoute la tendance due a la transform. Ec -> E therm. cree
	481	C lors de la dissipation
	482	call covcont(llm,ucov,vcov,ucont,vcont)
	483	call enercin(vcov,ucov,vcont,ucont,ecin)
	484	dtetaecdt= (ecin0-ecin)/ pk
	485	c teta=teta+dtetaecdt
	486	dtetadis=dtetadis+dtetaecdt
	487	endif
	488	teta=teta+dtetadis
	489	c------------------------------------------------------------------------
	490
	491
	492	c ....... P. Le Van ( ajout le 17/04/96 ) ...........
	493	c ... Calcul de la valeur moyenne, unique de h aux poles .....
	494	c
	495
	496	DO l = 1, llm
	497	DO ij = 1,iim
	498	tppn(ij) = aire( ij ) * teta( ij ,l)
	499	tpps(ij) = aire(ij+ip1jm) * teta(ij+ip1jm,l)
	500	ENDDO
	501	tpn = SSUM(iim,tppn,1)/apoln
	502	tps = SSUM(iim,tpps,1)/apols
	503
	504	DO ij = 1, iip1
	505	teta( ij ,l) = tpn
	506	teta(ij+ip1jm,l) = tps
	507	ENDDO
	508	ENDDO
	509
	510	DO ij = 1,iim
	511	tppn(ij) = aire( ij ) * ps ( ij )
	512	tpps(ij) = aire(ij+ip1jm) * ps (ij+ip1jm)
	513	ENDDO
	514	tpn = SSUM(iim,tppn,1)/apoln
	515	tps = SSUM(iim,tpps,1)/apols
	516
	517	DO ij = 1, iip1
	518	ps( ij ) = tpn
	519	ps(ij+ip1jm) = tps
	520	ENDDO
	521
	522
[1146]	523	END IF ! of IF(apdiss)
[524]	524
	525	c ajout debug
	526	c IF( lafin ) then
	527	c abort_message = 'Simulation finished'
	528	c call abort_gcm(modname,abort_message,0)
	529	c ENDIF
	530
	531	c ********************************************************************
	532	c ********************************************************************
	533	c .... fin de l'integration dynamique et physique pour le pas itau ..
	534	c ********************************************************************
	535	c ********************************************************************
	536
	537	c preparation du pas d'integration suivant ......
	538
	539	IF ( .NOT.purmats ) THEN
	540	c ........................................................
	541	c .............. schema matsuno + leapfrog ..............
	542	c ........................................................
	543
	544	IF(forward. OR. leapf) THEN
	545	itau= itau + 1
[1403]	546	c iday= day_ini+itau/day_step
	547	c time= REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
	548	c IF(time.GT.1.) THEN
	549	c time = time-1.
	550	c iday = iday+1
	551	c ENDIF
[524]	552	ENDIF
	553
	554
	555	IF( itau. EQ. itaufinp1 ) then
[999]	556	if (flag_verif) then
[1279]	557	write(79,*) 'ucov',ucov
	558	write(80,*) 'vcov',vcov
	559	write(81,*) 'teta',teta
	560	write(82,*) 'ps',ps
	561	write(83,*) 'q',q
[999]	562	WRITE(85,*) 'q1 = ',q(:,:,1)
	563	WRITE(86,*) 'q3 = ',q(:,:,3)
	564	endif
[524]	565
	566	abort_message = 'Simulation finished'
	567
	568	call abort_gcm(modname,abort_message,0)
	569	ENDIF
	570	c-----------------------------------------------------------------------
	571	c ecriture du fichier histoire moyenne:
	572	c -------------------------------------
	573
	574	IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin) THEN
	575	IF(itau.EQ.itaufin) THEN
	576	iav=1
	577	ELSE
	578	iav=0
	579	ENDIF
[1146]	580
	581	IF (ok_dynzon) THEN
[524]	582	#ifdef CPP_IOIPSL
[1403]	583	CALL bilan_dyn(2,dtvriperiod,dtvrday_step*periodav,
	584	& ps,masse,pk,pbaru,pbarv,teta,phi,ucov,vcov,q)
[524]	585	#endif
[1146]	586	END IF
[1403]	587	IF (ok_dyn_ave) THEN
	588	#ifdef CPP_IOIPSL
	589	CALL writedynav(itau,vcov,
	590	& ucov,teta,pk,phi,q,masse,ps,phis)
	591	#endif
	592	ENDIF
[524]	593
[1403]	594	ENDIF ! of IF((MOD(itau,iperiod).EQ.0).OR.(itau.EQ.itaufin))
[524]	595
	596	c-----------------------------------------------------------------------
	597	c ecriture de la bande histoire:
	598	c ------------------------------
	599
[1403]	600	IF( MOD(itau,iecri).EQ.0) THEN
	601	! Ehouarn: output only during LF or Backward Matsuno
	602	if (leapf.or.(.not.leapf.and.(.not.forward))) then
[1146]	603	nbetat = nbetatdem
	604	CALL geopot(ip1jmp1,teta,pk,pks,phis,phi)
	605	unat=0.
	606	do l=1,llm
	607	unat(iip2:ip1jm,l)=ucov(iip2:ip1jm,l)/cu(iip2:ip1jm)
	608	vnat(:,l)=vcov(:,l)/cv(:)
	609	enddo
[524]	610	#ifdef CPP_IOIPSL
[1403]	611	if (ok_dyn_ins) then
	612	! write(lunout,*) "leapfrog: call writehist, itau=",itau
	613	CALL writehist(itau,vcov,ucov,teta,phi,q,masse,ps,phis)
	614	! call WriteField('ucov',reshape(ucov,(/iip1,jmp1,llm/)))
	615	! call WriteField('vcov',reshape(vcov,(/iip1,jjm,llm/)))
	616	! call WriteField('teta',reshape(teta,(/iip1,jmp1,llm/)))
	617	! call WriteField('ps',reshape(ps,(/iip1,jmp1/)))
	618	! call WriteField('masse',reshape(masse,(/iip1,jmp1,llm/)))
	619	endif ! of if (ok_dyn_ins)
[1146]	620	#endif
	621	! For some Grads outputs of fields
[1403]	622	if (output_grads_dyn) then
[524]	623	#include "write_grads_dyn.h"
[1403]	624	endif
	625	endif ! of if (leapf.or.(.not.leapf.and.(.not.forward)))
[1146]	626	ENDIF ! of IF(MOD(itau,iecri).EQ.0)
[524]	627
	628	IF(itau.EQ.itaufin) THEN
	629
	630
[1454]	631	! if (planet_type.eq."earth") then
[1146]	632	! Write an Earth-format restart file
	633	CALL dynredem1("restart.nc",0.0,
	634	& vcov,ucov,teta,q,masse,ps)
[1454]	635	! endif ! of if (planet_type.eq."earth")
[524]	636
	637	CLOSE(99)
[1146]	638	ENDIF ! of IF (itau.EQ.itaufin)
[524]	639
	640	c-----------------------------------------------------------------------
	641	c gestion de l'integration temporelle:
	642	c ------------------------------------
	643
	644	IF( MOD(itau,iperiod).EQ.0 ) THEN
	645	GO TO 1
	646	ELSE IF ( MOD(itau-1,iperiod). EQ. 0 ) THEN
	647
	648	IF( forward ) THEN
	649	c fin du pas forward et debut du pas backward
	650
	651	forward = .FALSE.
	652	leapf = .FALSE.
	653	GO TO 2
	654
	655	ELSE
	656	c fin du pas backward et debut du premier pas leapfrog
	657
	658	leapf = .TRUE.
	659	dt = 2.*dtvr
[1146]	660	GO TO 2
	661	END IF ! of IF (forward)
[524]	662	ELSE
	663
	664	c ...... pas leapfrog .....
	665
	666	leapf = .TRUE.
	667	dt = 2.*dtvr
	668	GO TO 2
[1146]	669	END IF ! of IF (MOD(itau,iperiod).EQ.0)
	670	! ELSEIF (MOD(itau-1,iperiod).EQ.0)
[524]	671
[1146]	672	ELSE ! of IF (.not.purmats)
[524]	673
	674	c ........................................................
	675	c .............. schema matsuno ...............
	676	c ........................................................
	677	IF( forward ) THEN
	678
	679	itau = itau + 1
[1403]	680	c iday = day_ini+itau/day_step
	681	c time = REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
	682	c
	683	c IF(time.GT.1.) THEN
	684	c time = time-1.
	685	c iday = iday+1
	686	c ENDIF
[524]	687
	688	forward = .FALSE.
	689	IF( itau. EQ. itaufinp1 ) then
	690	abort_message = 'Simulation finished'
	691	call abort_gcm(modname,abort_message,0)
	692	ENDIF
	693	GO TO 2
	694
[1403]	695	ELSE ! of IF(forward) i.e. backward step
[524]	696
[1146]	697	IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin) THEN
[524]	698	IF(itau.EQ.itaufin) THEN
	699	iav=1
	700	ELSE
	701	iav=0
	702	ENDIF
[1146]	703
	704	IF (ok_dynzon) THEN
[524]	705	#ifdef CPP_IOIPSL
[1403]	706	CALL bilan_dyn(2,dtvriperiod,dtvrday_step*periodav,
	707	& ps,masse,pk,pbaru,pbarv,teta,phi,ucov,vcov,q)
[524]	708	#endif
[1403]	709	ENDIF
	710	IF (ok_dyn_ave) THEN
	711	#ifdef CPP_IOIPSL
	712	CALL writedynav(itau,vcov,
	713	& ucov,teta,pk,phi,q,masse,ps,phis)
	714	#endif
	715	ENDIF
[524]	716
[1146]	717	ENDIF ! of IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin)
[524]	718
[1146]	719	IF(MOD(itau,iecri ).EQ.0) THEN
[524]	720	c IF(MOD(itau,iecri*day_step).EQ.0) THEN
[1146]	721	nbetat = nbetatdem
	722	CALL geopot(ip1jmp1,teta,pk,pks,phis,phi)
	723	unat=0.
	724	do l=1,llm
	725	unat(iip2:ip1jm,l)=ucov(iip2:ip1jm,l)/cu(iip2:ip1jm)
	726	vnat(:,l)=vcov(:,l)/cv(:)
	727	enddo
[524]	728	#ifdef CPP_IOIPSL
[1403]	729	if (ok_dyn_ins) then
	730	! write(lunout,*) "leapfrog: call writehist (b)",
	731	! & itau,iecri
	732	CALL writehist(itau,vcov,ucov,teta,phi,q,masse,ps,phis)
	733	endif ! of if (ok_dyn_ins)
[1146]	734	#endif
	735	! For some Grads outputs
	736	if (output_grads_dyn) then
[524]	737	#include "write_grads_dyn.h"
[1146]	738	endif
[524]	739
[1146]	740	ENDIF ! of IF(MOD(itau,iecri ).EQ.0)
[524]	741
[1146]	742	IF(itau.EQ.itaufin) THEN
[1454]	743	! if (planet_type.eq."earth") then
[1146]	744	CALL dynredem1("restart.nc",0.0,
	745	& vcov,ucov,teta,q,masse,ps)
[1454]	746	! endif ! of if (planet_type.eq."earth")
[1146]	747	ENDIF ! of IF(itau.EQ.itaufin)
[524]	748
[1146]	749	forward = .TRUE.
	750	GO TO 1
[524]	751
[1146]	752	ENDIF ! of IF (forward)
[524]	753
[1146]	754	END IF ! of IF(.not.purmats)
[524]	755
	756	STOP
	757	END

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