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leapfrog.F @ 1907

Last change on this file since 1907 was 1907, checked in by lguez, 10 years ago

Added a copyright property to every file of the distribution, except
for the fcm files (which have their own copyright). Use svn propget on
a file to see the copyright. For instance:

$ svn propget copyright libf/phylmd/physiq.F90
Name of program: LMDZ
Creation date: 1984
Version: LMDZ5
License: CeCILL version 2
Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
See the license file in the root directory

Also added the files defining the CeCILL version 2 license, in French
and English, at the top of the LMDZ tree.

Property copyright set to
Name of program: LMDZ
Creation date: 1984
Version: LMDZ5
License: CeCILL version 2
Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
See the license file in the root directory
Property svn:eol-style set to native
Property svn:keywords set to Author Date Id Revision

File size: 25.4 KB

Line
1	!
2	! $Id: leapfrog.F 1907 2013-11-26 13:10:46Z lguez $
3	!
4	c
5	c
6	SUBROUTINE leapfrog(ucov,vcov,teta,ps,masse,phis,q,clesphy0,
7	& time_0)
8
9
10	cIM : pour sortir les param. du modele dans un fis. netcdf 110106
11	#ifdef CPP_IOIPSL
12	use IOIPSL
13	#endif
14	USE infotrac
15	USE guide_mod, ONLY : guide_main
16	USE write_field
17	USE control_mod
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"
62	!#include "com_io_dyn.h"
63	#include "iniprint.h"
64	#include "academic.h"
65
66	! FH 2008/05/09 On elimine toutes les clefs physiques dans la dynamique
67	! #include "clesphys.h"
68
69	INTEGER longcles
70	PARAMETER ( longcles = 20 )
71	REAL clesphy0( longcles )
72
73	real zqmin,zqmax
74
75	c variables dynamiques
76	REAL vcov(ip1jm,llm),ucov(ip1jmp1,llm) ! vents covariants
77	REAL teta(ip1jmp1,llm) ! temperature potentielle
78	REAL q(ip1jmp1,llm,nqtot) ! champs advectes
79	REAL ps(ip1jmp1) ! pression au sol
80	REAL p (ip1jmp1,llmp1 ) ! pression aux interfac.des couches
81	REAL pks(ip1jmp1) ! exner au sol
82	REAL pk(ip1jmp1,llm) ! exner au milieu des couches
83	REAL pkf(ip1jmp1,llm) ! exner filt.au milieu des couches
84	REAL masse(ip1jmp1,llm) ! masse d'air
85	REAL phis(ip1jmp1) ! geopotentiel au sol
86	REAL phi(ip1jmp1,llm) ! geopotentiel
87	REAL w(ip1jmp1,llm) ! vitesse verticale
88
89	c variables dynamiques intermediaire pour le transport
90	REAL pbaru(ip1jmp1,llm),pbarv(ip1jm,llm) !flux de masse
91
92	c variables dynamiques au pas -1
93	REAL vcovm1(ip1jm,llm),ucovm1(ip1jmp1,llm)
94	REAL tetam1(ip1jmp1,llm),psm1(ip1jmp1)
95	REAL massem1(ip1jmp1,llm)
96
97	c tendances dynamiques
98	REAL dv(ip1jm,llm),du(ip1jmp1,llm)
99	REAL dteta(ip1jmp1,llm),dq(ip1jmp1,llm,nqtot),dp(ip1jmp1)
100
101	c tendances de la dissipation
102	REAL dvdis(ip1jm,llm),dudis(ip1jmp1,llm)
103	REAL dtetadis(ip1jmp1,llm)
104
105	c tendances physiques
106	REAL dvfi(ip1jm,llm),dufi(ip1jmp1,llm)
107	REAL dtetafi(ip1jmp1,llm),dqfi(ip1jmp1,llm,nqtot),dpfi(ip1jmp1)
108
109	c variables pour le fichier histoire
110	REAL dtav ! intervalle de temps elementaire
111
112	REAL tppn(iim),tpps(iim),tpn,tps
113	c
114	INTEGER itau,itaufinp1,iav
115	! INTEGER iday ! jour julien
116	REAL time
117
118	REAL SSUM
119	REAL time_0
120	! REAL finvmaold(ip1jmp1,llm)
121
122	cym LOGICAL lafin
123	LOGICAL :: lafin=.false.
124	INTEGER ij,iq,l
125	INTEGER ik
126
127	real time_step, t_wrt, t_ops
128
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
136	LOGICAL first,callinigrads
137	cIM : pour sortir les param. du modele dans un fis. netcdf 110106
138	save first
139	data first/.true./
140	real dt_cum
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.)
151	logical physic
152
153	data callinigrads/.true./
154	character*10 string10
155
156	REAL alpha(ip1jmp1,llm),beta(ip1jmp1,llm)
157	REAL :: flxw(ip1jmp1,llm) ! flux de masse verticale
158
159	c+jld variables test conservation energie
160	REAL ecin(ip1jmp1,llm),ecin0(ip1jmp1,llm)
161	C Tendance de la temp. potentiel d (theta)/ d t due a la
162	C tansformation d'energie cinetique en energie thermique
163	C cree par la dissipation
164	REAL dtetaecdt(ip1jmp1,llm)
165	REAL vcont(ip1jm,llm),ucont(ip1jmp1,llm)
166	REAL vnat(ip1jm,llm),unat(ip1jmp1,llm)
167	REAL d_h_vcol, d_qt, d_qw, d_ql, d_ec
168	CHARACTER*15 ztit
169	!IM INTEGER ip_ebil_dyn ! PRINT level for energy conserv. diag.
170	!IM SAVE ip_ebil_dyn
171	!IM DATA ip_ebil_dyn/0/
172	c-jld
173
174	character*80 dynhist_file, dynhistave_file
175	character(len=*),parameter :: modname="leapfrog"
176	character*80 abort_message
177
178	logical dissip_conservative
179	save dissip_conservative
180	data dissip_conservative/.true./
181
182	LOGICAL prem
183	save prem
184	DATA prem/.true./
185	INTEGER testita
186	PARAMETER (testita = 9)
187
188	logical , parameter :: flag_verif = .false.
189
190
191	integer itau_w ! pas de temps ecriture = itap + itau_phy
192
193
194	itaufin = nday*day_step
195	itaufinp1 = itaufin +1
196	itau = 0
197	physic=.true.
198	if (iflag_phys==0.or.iflag_phys==2) physic=.false.
199
200	c iday = day_ini+itau/day_step
201	c time = REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
202	c IF(time.GT.1.) THEN
203	c time = time-1.
204	c iday = iday+1
205	c ENDIF
206
207
208	c-----------------------------------------------------------------------
209	c On initialise la pression et la fonction d'Exner :
210	c --------------------------------------------------
211
212	dq(:,:,:)=0.
213	CALL pression ( ip1jmp1, ap, bp, ps, p )
214	if (pressure_exner) then
215	CALL exner_hyb( ip1jmp1, ps, p,alpha,beta, pks, pk, pkf )
216	else
217	CALL exner_milieu( ip1jmp1, ps, p, beta, pks, pk, pkf )
218	endif
219
220	c-----------------------------------------------------------------------
221	c Debut de l'integration temporelle:
222	c ----------------------------------
223
224	1 CONTINUE ! Matsuno Forward step begins here
225
226	jD_cur = jD_ref + day_ini - day_ref + &
227	& itau/day_step
228	jH_cur = jH_ref + start_time + &
229	& mod(itau,day_step)/float(day_step)
230	jD_cur = jD_cur + int(jH_cur)
231	jH_cur = jH_cur - int(jH_cur)
232
233
234	#ifdef CPP_IOIPSL
235	if (ok_guide) then
236	call guide_main(itau,ucov,vcov,teta,q,masse,ps)
237	endif
238	#endif
239
240
241	c
242	c IF( MOD( itau, 10* day_step ).EQ.0 ) THEN
243	c CALL test_period ( ucov,vcov,teta,q,p,phis )
244	c PRINT *,' ---- Test_period apres continue OK ! -----', itau
245	c ENDIF
246	c
247
248	! Save fields obtained at previous time step as '...m1'
249	CALL SCOPY( ijmllm ,vcov , 1, vcovm1 , 1 )
250	CALL SCOPY( ijp1llm,ucov , 1, ucovm1 , 1 )
251	CALL SCOPY( ijp1llm,teta , 1, tetam1 , 1 )
252	CALL SCOPY( ijp1llm,masse, 1, massem1, 1 )
253	CALL SCOPY( ip1jmp1, ps , 1, psm1 , 1 )
254
255	forward = .TRUE.
256	leapf = .FALSE.
257	dt = dtvr
258
259	c ... P.Le Van .26/04/94 ....
260	! Ehouarn: finvmaold is actually not used
261	! CALL SCOPY ( ijp1llm, masse, 1, finvmaold, 1 )
262	! CALL filtreg ( finvmaold ,jjp1, llm, -2,2, .TRUE., 1 )
263
264	2 CONTINUE ! Matsuno backward or leapfrog step begins here
265
266	c-----------------------------------------------------------------------
267
268	c date:
269	c -----
270
271
272	c gestion des appels de la physique et des dissipations:
273	c ------------------------------------------------------
274	c
275	c ... P.Le Van ( 6/02/95 ) ....
276
277	apphys = .FALSE.
278	statcl = .FALSE.
279	conser = .FALSE.
280	apdiss = .FALSE.
281
282	IF( purmats ) THEN
283	! Purely Matsuno time stepping
284	IF( MOD(itau,iconser) .EQ.0.AND. forward ) conser = .TRUE.
285	IF( MOD(itau,dissip_period ).EQ.0.AND..NOT.forward )
286	s apdiss = .TRUE.
287	IF( MOD(itau,iphysiq ).EQ.0.AND..NOT.forward
288	s .and. physic ) apphys = .TRUE.
289	ELSE
290	! Leapfrog/Matsuno time stepping
291	IF( MOD(itau ,iconser) .EQ. 0 ) conser = .TRUE.
292	IF( MOD(itau+1,dissip_period).EQ.0 .AND. .NOT. forward )
293	s apdiss = .TRUE.
294	IF( MOD(itau+1,iphysiq).EQ.0.AND.physic ) apphys=.TRUE.
295	END IF
296
297	! Ehouarn: for Shallow Water case (ie: 1 vertical layer),
298	! supress dissipation step
299	if (llm.eq.1) then
300	apdiss=.false.
301	endif
302
303	c-----------------------------------------------------------------------
304	c calcul des tendances dynamiques:
305	c --------------------------------
306
307	! compute geopotential phi()
308	CALL geopot ( ip1jmp1, teta , pk , pks, phis , phi )
309
310	time = jD_cur + jH_cur
311	CALL caldyn
312	$ ( itau,ucov,vcov,teta,ps,masse,pk,pkf,phis ,
313	$ phi,conser,du,dv,dteta,dp,w, pbaru,pbarv, time )
314
315
316	c-----------------------------------------------------------------------
317	c calcul des tendances advection des traceurs (dont l'humidite)
318	c -------------------------------------------------------------
319
320	IF( forward. OR . leapf ) THEN
321	! Ehouarn: NB: at this point p with ps are not synchronized
322	! (whereas mass and ps are...)
323	CALL caladvtrac(q,pbaru,pbarv,
324	* p, masse, dq, teta,
325	. flxw, pk)
326
327	IF (offline) THEN
328	Cmaf stokage du flux de masse pour traceurs OFF-LINE
329
330	#ifdef CPP_IOIPSL
331	CALL fluxstokenc(pbaru,pbarv,masse,teta,phi,phis,
332	. dtvr, itau)
333	#endif
334
335
336	ENDIF ! of IF (offline)
337	c
338	ENDIF ! of IF( forward. OR . leapf )
339
340
341	c-----------------------------------------------------------------------
342	c integrations dynamique et traceurs:
343	c ----------------------------------
344
345
346	CALL integrd ( 2,vcovm1,ucovm1,tetam1,psm1,massem1 ,
347	$ dv,du,dteta,dq,dp,vcov,ucov,teta,q,ps,masse,phis )
348	! $ finvmaold )
349
350
351	c .P.Le Van (26/04/94 ajout de finvpold dans l'appel d'integrd)
352	c
353	c-----------------------------------------------------------------------
354	c calcul des tendances physiques:
355	c -------------------------------
356	c ######## P.Le Van ( Modif le 6/02/95 ) ###########
357	c
358	IF( purmats ) THEN
359	IF( itau.EQ.itaufin.AND..NOT.forward ) lafin = .TRUE.
360	ELSE
361	IF( itau+1. EQ. itaufin ) lafin = .TRUE.
362	ENDIF
363	c
364	c
365	IF( apphys ) THEN
366	c
367	c ....... Ajout P.Le Van ( 17/04/96 ) ...........
368	c
369
370	CALL pression ( ip1jmp1, ap, bp, ps, p )
371	if (pressure_exner) then
372	CALL exner_hyb( ip1jmp1, ps, p,alpha,beta,pks, pk, pkf )
373	else
374	CALL exner_milieu( ip1jmp1, ps, p, beta, pks, pk, pkf )
375	endif
376
377	! rdaym_ini = itau * dtvr / daysec
378	! rdayvrai = rdaym_ini + day_ini
379	! jD_cur = jD_ref + day_ini - day_ref
380	! $ + int (itau * dtvr / daysec)
381	! jH_cur = jH_ref + &
382	! & (itau * dtvr / daysec - int(itau * dtvr / daysec))
383	jD_cur = jD_ref + day_ini - day_ref + &
384	& itau/day_step
385
386	IF (planet_type .eq."generic") THEN
387	! AS: we make jD_cur to be pday
388	jD_cur = int(day_ini + itau/day_step)
389	ENDIF
390
391	jH_cur = jH_ref + start_time + &
392	& mod(itau,day_step)/float(day_step)
393	jD_cur = jD_cur + int(jH_cur)
394	jH_cur = jH_cur - int(jH_cur)
395	! write(lunout,*)'itau, jD_cur = ', itau, jD_cur, jH_cur
396	! call ju2ymds(jD_cur+jH_cur, an, mois, jour, secondes)
397	! write(lunout,*)'current date = ',an, mois, jour, secondes
398
399	c rajout debug
400	c lafin = .true.
401
402
403	c Inbterface avec les routines de phylmd (phymars ... )
404	c -----------------------------------------------------
405
406	c+jld
407
408	c Diagnostique de conservation de l'énergie : initialisation
409	IF (ip_ebil_dyn.ge.1 ) THEN
410	ztit='bil dyn'
411	! Ehouarn: be careful, diagedyn is Earth-specific (includes ../phylmd/..)!
412	IF (planet_type.eq."earth") THEN
413	#ifdef CPP_EARTH
414	CALL diagedyn(ztit,2,1,1,dtphys
415	& , ucov , vcov , ps, p ,pk , teta , q(:,:,1), q(:,:,2))
416	#endif
417	ENDIF
418	ENDIF ! of IF (ip_ebil_dyn.ge.1 )
419	c-jld
420	#ifdef CPP_IOIPSL
421	cIM decommenter les 6 lignes suivantes pour sortir quelques parametres dynamiques de LMDZ
422	cIM uncomment next 6 lines to get some parameters for LMDZ dynamics
423	c IF (first) THEN
424	c first=.false.
425	c#include "ini_paramLMDZ_dyn.h"
426	c ENDIF
427	c
428	c#include "write_paramLMDZ_dyn.h"
429	c
430	#endif
431	! #endif of #ifdef CPP_IOIPSL
432	CALL calfis( lafin , jD_cur, jH_cur,
433	$ ucov,vcov,teta,q,masse,ps,p,pk,phis,phi ,
434	$ du,dv,dteta,dq,
435	$ flxw,
436	$ clesphy0, dufi,dvfi,dtetafi,dqfi,dpfi )
437
438	c ajout des tendances physiques:
439	c ------------------------------
440	CALL addfi( dtphys, leapf, forward ,
441	$ ucov, vcov, teta , q ,ps ,
442	$ dufi, dvfi, dtetafi , dqfi ,dpfi )
443
444	IF (ok_strato) THEN
445	CALL top_bound( vcov,ucov,teta,masse,dtphys)
446	ENDIF
447
448	c
449	c Diagnostique de conservation de l'énergie : difference
450	IF (ip_ebil_dyn.ge.1 ) THEN
451	ztit='bil phys'
452	IF (planet_type.eq."earth") THEN
453	CALL diagedyn(ztit,2,1,1,dtphys
454	& , ucov , vcov , ps, p ,pk , teta , q(:,:,1), q(:,:,2))
455	ENDIF
456	ENDIF ! of IF (ip_ebil_dyn.ge.1 )
457
458	ENDIF ! of IF( apphys )
459
460	IF(iflag_phys.EQ.2) THEN ! "Newtonian" case
461	! Academic case : Simple friction and Newtonan relaxation
462	! -------------------------------------------------------
463	DO l=1,llm
464	DO ij=1,ip1jmp1
465	teta(ij,l)=teta(ij,l)-dtvr*
466	& (teta(ij,l)-tetarappel(ij,l))(knewt_g+knewt_t(l)clat4(ij))
467	ENDDO
468	ENDDO ! of DO l=1,llm
469
470	if (planet_type.eq."giant") then
471	! add an intrinsic heat flux at the base of the atmosphere
472	teta(:,1)=teta(:,1)+dtvraire(:)ihf/cpp/masse(:,1)
473	endif
474
475	call friction(ucov,vcov,dtvr)
476
477	! Sponge layer (if any)
478	IF (ok_strato) THEN
479	! dufi(:,:)=0.
480	! dvfi(:,:)=0.
481	! dtetafi(:,:)=0.
482	! dqfi(:,:,:)=0.
483	! dpfi(:)=0.
484	! CALL top_bound(vcov,ucov,teta,masse,dufi,dvfi,dtetafi)
485	CALL top_bound( vcov,ucov,teta,masse,dtvr)
486	! CALL addfi( dtvr, leapf, forward ,
487	! $ ucov, vcov, teta , q ,ps ,
488	! $ dufi, dvfi, dtetafi , dqfi ,dpfi )
489	ENDIF ! of IF (ok_strato)
490	ENDIF ! of IF (iflag_phys.EQ.2)
491
492
493	c-jld
494
495	CALL pression ( ip1jmp1, ap, bp, ps, p )
496	if (pressure_exner) then
497	CALL exner_hyb( ip1jmp1, ps, p,alpha,beta, pks, pk, pkf )
498	else
499	CALL exner_milieu( ip1jmp1, ps, p, beta, pks, pk, pkf )
500	endif
501
502
503	c-----------------------------------------------------------------------
504	c dissipation horizontale et verticale des petites echelles:
505	c ----------------------------------------------------------
506
507	IF(apdiss) THEN
508
509
510	c calcul de l'energie cinetique avant dissipation
511	call covcont(llm,ucov,vcov,ucont,vcont)
512	call enercin(vcov,ucov,vcont,ucont,ecin0)
513
514	c dissipation
515	CALL dissip(vcov,ucov,teta,p,dvdis,dudis,dtetadis)
516	ucov=ucov+dudis
517	vcov=vcov+dvdis
518	c teta=teta+dtetadis
519
520
521	c------------------------------------------------------------------------
522	if (dissip_conservative) then
523	C On rajoute la tendance due a la transform. Ec -> E therm. cree
524	C lors de la dissipation
525	call covcont(llm,ucov,vcov,ucont,vcont)
526	call enercin(vcov,ucov,vcont,ucont,ecin)
527	dtetaecdt= (ecin0-ecin)/ pk
528	c teta=teta+dtetaecdt
529	dtetadis=dtetadis+dtetaecdt
530	endif
531	teta=teta+dtetadis
532	c------------------------------------------------------------------------
533
534
535	c ....... P. Le Van ( ajout le 17/04/96 ) ...........
536	c ... Calcul de la valeur moyenne, unique de h aux poles .....
537	c
538
539	DO l = 1, llm
540	DO ij = 1,iim
541	tppn(ij) = aire( ij ) * teta( ij ,l)
542	tpps(ij) = aire(ij+ip1jm) * teta(ij+ip1jm,l)
543	ENDDO
544	tpn = SSUM(iim,tppn,1)/apoln
545	tps = SSUM(iim,tpps,1)/apols
546
547	DO ij = 1, iip1
548	teta( ij ,l) = tpn
549	teta(ij+ip1jm,l) = tps
550	ENDDO
551	ENDDO
552
553	if (1 == 0) then
554	!!! Ehouarn: lines here 1) kill 1+1=2 in the dynamics
555	!!! 2) should probably not be here anyway
556	!!! but are kept for those who would want to revert to previous behaviour
557	DO ij = 1,iim
558	tppn(ij) = aire( ij ) * ps ( ij )
559	tpps(ij) = aire(ij+ip1jm) * ps (ij+ip1jm)
560	ENDDO
561	tpn = SSUM(iim,tppn,1)/apoln
562	tps = SSUM(iim,tpps,1)/apols
563
564	DO ij = 1, iip1
565	ps( ij ) = tpn
566	ps(ij+ip1jm) = tps
567	ENDDO
568	endif ! of if (1 == 0)
569
570	END IF ! of IF(apdiss)
571
572	c ajout debug
573	c IF( lafin ) then
574	c abort_message = 'Simulation finished'
575	c call abort_gcm(modname,abort_message,0)
576	c ENDIF
577
578	c ********************************************************************
579	c ********************************************************************
580	c .... fin de l'integration dynamique et physique pour le pas itau ..
581	c ********************************************************************
582	c ********************************************************************
583
584	c preparation du pas d'integration suivant ......
585
586	IF ( .NOT.purmats ) THEN
587	c ........................................................
588	c .............. schema matsuno + leapfrog ..............
589	c ........................................................
590
591	IF(forward. OR. leapf) THEN
592	itau= itau + 1
593	c iday= day_ini+itau/day_step
594	c time= REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
595	c IF(time.GT.1.) THEN
596	c time = time-1.
597	c iday = iday+1
598	c ENDIF
599	ENDIF
600
601
602	IF( itau. EQ. itaufinp1 ) then
603	if (flag_verif) then
604	write(79,*) 'ucov',ucov
605	write(80,*) 'vcov',vcov
606	write(81,*) 'teta',teta
607	write(82,*) 'ps',ps
608	write(83,*) 'q',q
609	WRITE(85,*) 'q1 = ',q(:,:,1)
610	WRITE(86,*) 'q3 = ',q(:,:,3)
611	endif
612
613	abort_message = 'Simulation finished'
614
615	call abort_gcm(modname,abort_message,0)
616	ENDIF
617	c-----------------------------------------------------------------------
618	c ecriture du fichier histoire moyenne:
619	c -------------------------------------
620
621	IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin) THEN
622	IF(itau.EQ.itaufin) THEN
623	iav=1
624	ELSE
625	iav=0
626	ENDIF
627
628	IF (ok_dynzon) THEN
629	#ifdef CPP_IOIPSL
630	CALL bilan_dyn(2,dtvriperiod,dtvrday_step*periodav,
631	& ps,masse,pk,pbaru,pbarv,teta,phi,ucov,vcov,q)
632	#endif
633	END IF
634	IF (ok_dyn_ave) THEN
635	#ifdef CPP_IOIPSL
636	CALL writedynav(itau,vcov,
637	& ucov,teta,pk,phi,q,masse,ps,phis)
638	#endif
639	ENDIF
640
641	ENDIF ! of IF((MOD(itau,iperiod).EQ.0).OR.(itau.EQ.itaufin))
642
643	c-----------------------------------------------------------------------
644	c ecriture de la bande histoire:
645	c ------------------------------
646
647	IF( MOD(itau,iecri).EQ.0) THEN
648	! Ehouarn: output only during LF or Backward Matsuno
649	if (leapf.or.(.not.leapf.and.(.not.forward))) then
650	CALL geopot(ip1jmp1,teta,pk,pks,phis,phi)
651	unat=0.
652	do l=1,llm
653	unat(iip2:ip1jm,l)=ucov(iip2:ip1jm,l)/cu(iip2:ip1jm)
654	vnat(:,l)=vcov(:,l)/cv(:)
655	enddo
656	#ifdef CPP_IOIPSL
657	if (ok_dyn_ins) then
658	! write(lunout,*) "leapfrog: call writehist, itau=",itau
659	CALL writehist(itau,vcov,ucov,teta,phi,q,masse,ps,phis)
660	! call WriteField('ucov',reshape(ucov,(/iip1,jmp1,llm/)))
661	! call WriteField('vcov',reshape(vcov,(/iip1,jjm,llm/)))
662	! call WriteField('teta',reshape(teta,(/iip1,jmp1,llm/)))
663	! call WriteField('ps',reshape(ps,(/iip1,jmp1/)))
664	! call WriteField('masse',reshape(masse,(/iip1,jmp1,llm/)))
665	endif ! of if (ok_dyn_ins)
666	#endif
667	! For some Grads outputs of fields
668	if (output_grads_dyn) then
669	#include "write_grads_dyn.h"
670	endif
671	endif ! of if (leapf.or.(.not.leapf.and.(.not.forward)))
672	ENDIF ! of IF(MOD(itau,iecri).EQ.0)
673
674	IF(itau.EQ.itaufin) THEN
675
676
677	! if (planet_type.eq."earth") then
678	! Write an Earth-format restart file
679	CALL dynredem1("restart.nc",start_time,
680	& vcov,ucov,teta,q,masse,ps)
681	! endif ! of if (planet_type.eq."earth")
682
683	CLOSE(99)
684	!!! Ehouarn: Why not stop here and now?
685	ENDIF ! of IF (itau.EQ.itaufin)
686
687	c-----------------------------------------------------------------------
688	c gestion de l'integration temporelle:
689	c ------------------------------------
690
691	IF( MOD(itau,iperiod).EQ.0 ) THEN
692	GO TO 1
693	ELSE IF ( MOD(itau-1,iperiod). EQ. 0 ) THEN
694
695	IF( forward ) THEN
696	c fin du pas forward et debut du pas backward
697
698	forward = .FALSE.
699	leapf = .FALSE.
700	GO TO 2
701
702	ELSE
703	c fin du pas backward et debut du premier pas leapfrog
704
705	leapf = .TRUE.
706	dt = 2.*dtvr
707	GO TO 2
708	END IF ! of IF (forward)
709	ELSE
710
711	c ...... pas leapfrog .....
712
713	leapf = .TRUE.
714	dt = 2.*dtvr
715	GO TO 2
716	END IF ! of IF (MOD(itau,iperiod).EQ.0)
717	! ELSEIF (MOD(itau-1,iperiod).EQ.0)
718
719	ELSE ! of IF (.not.purmats)
720
721	c ........................................................
722	c .............. schema matsuno ...............
723	c ........................................................
724	IF( forward ) THEN
725
726	itau = itau + 1
727	c iday = day_ini+itau/day_step
728	c time = REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
729	c
730	c IF(time.GT.1.) THEN
731	c time = time-1.
732	c iday = iday+1
733	c ENDIF
734
735	forward = .FALSE.
736	IF( itau. EQ. itaufinp1 ) then
737	abort_message = 'Simulation finished'
738	call abort_gcm(modname,abort_message,0)
739	ENDIF
740	GO TO 2
741
742	ELSE ! of IF(forward) i.e. backward step
743
744	IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin) THEN
745	IF(itau.EQ.itaufin) THEN
746	iav=1
747	ELSE
748	iav=0
749	ENDIF
750
751	IF (ok_dynzon) THEN
752	#ifdef CPP_IOIPSL
753	CALL bilan_dyn(2,dtvriperiod,dtvrday_step*periodav,
754	& ps,masse,pk,pbaru,pbarv,teta,phi,ucov,vcov,q)
755	#endif
756	ENDIF
757	IF (ok_dyn_ave) THEN
758	#ifdef CPP_IOIPSL
759	CALL writedynav(itau,vcov,
760	& ucov,teta,pk,phi,q,masse,ps,phis)
761	#endif
762	ENDIF
763
764	ENDIF ! of IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin)
765
766	IF(MOD(itau,iecri ).EQ.0) THEN
767	c IF(MOD(itau,iecri*day_step).EQ.0) THEN
768	CALL geopot(ip1jmp1,teta,pk,pks,phis,phi)
769	unat=0.
770	do l=1,llm
771	unat(iip2:ip1jm,l)=ucov(iip2:ip1jm,l)/cu(iip2:ip1jm)
772	vnat(:,l)=vcov(:,l)/cv(:)
773	enddo
774	#ifdef CPP_IOIPSL
775	if (ok_dyn_ins) then
776	! write(lunout,*) "leapfrog: call writehist (b)",
777	! & itau,iecri
778	CALL writehist(itau,vcov,ucov,teta,phi,q,masse,ps,phis)
779	endif ! of if (ok_dyn_ins)
780	#endif
781	! For some Grads outputs
782	if (output_grads_dyn) then
783	#include "write_grads_dyn.h"
784	endif
785
786	ENDIF ! of IF(MOD(itau,iecri ).EQ.0)
787
788	IF(itau.EQ.itaufin) THEN
789	! if (planet_type.eq."earth") then
790	CALL dynredem1("restart.nc",start_time,
791	& vcov,ucov,teta,q,masse,ps)
792	! endif ! of if (planet_type.eq."earth")
793	ENDIF ! of IF(itau.EQ.itaufin)
794
795	forward = .TRUE.
796	GO TO 1
797
798	ENDIF ! of IF (forward)
799
800	END IF ! of IF(.not.purmats)
801
802	STOP
803	END

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