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leapfrog.F @ 2358

Last change on this file since 2358 was 2302, checked in by Ehouarn Millour, 9 years ago
Move etat0phys_netcdf.F90 to "dynlonlat_phylonlat/phylmd" as it relies on "phylmd" routines. Some cleanup to remove obsolete and unecessary CPP_EARTH preprocessing condition. EM
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: 27.7 KB

Line
1	!
2	! $Id: leapfrog.F 2302 2015-06-17 12:46:36Z emillour $
3	!
4	c
5	c
6	SUBROUTINE leapfrog(ucov,vcov,teta,ps,masse,phis,q,time_0)
7
8
9	cIM : pour sortir les param. du modele dans un fis. netcdf 110106
10	#ifdef CPP_IOIPSL
11	use IOIPSL
12	#endif
13	USE infotrac, ONLY: nqtot,ok_iso_verif
14	USE guide_mod, ONLY : guide_main
15	USE write_field, ONLY: writefield
16	USE control_mod, ONLY: nday, day_step, planet_type, offline,
17	& iconser, iphysiq, iperiod, dissip_period,
18	& iecri, ip_ebil_dyn, ok_dynzon, ok_dyn_ins,
19	& periodav, ok_dyn_ave, output_grads_dyn
20	use exner_hyb_m, only: exner_hyb
21	use exner_milieu_m, only: exner_milieu
22
23	IMPLICIT NONE
24
25	c ...... Version du 10/01/98 ..........
26
27	c avec coordonnees verticales hybrides
28	c avec nouveaux operat. dissipation * ( gradiv2,divgrad2,nxgraro2 )
29
30	c=======================================================================
31	c
32	c Auteur: P. Le Van /L. Fairhead/F.Hourdin
33	c -------
34	c
35	c Objet:
36	c ------
37	c
38	c GCM LMD nouvelle grille
39	c
40	c=======================================================================
41	c
42	c ... Dans inigeom , nouveaux calculs pour les elongations cu , cv
43	c et possibilite d'appeler une fonction f(y) a derivee tangente
44	c hyperbolique a la place de la fonction a derivee sinusoidale.
45
46	c ... Possibilite de choisir le shema pour l'advection de
47	c q , en modifiant iadv dans traceur.def (10/02) .
48	c
49	c Pour Van-Leer + Vapeur d'eau saturee, iadv(1)=4. (F.Codron,10/99)
50	c Pour Van-Leer iadv=10
51	c
52	c-----------------------------------------------------------------------
53	c Declarations:
54	c -------------
55
56	#include "dimensions.h"
57	#include "paramet.h"
58	#include "comconst.h"
59	#include "comdissnew.h"
60	#include "comvert.h"
61	#include "comgeom.h"
62	#include "logic.h"
63	#include "temps.h"
64	#include "ener.h"
65	#include "description.h"
66	#include "serre.h"
67	!#include "com_io_dyn.h"
68	#include "iniprint.h"
69	#include "academic.h"
70
71	REAL,INTENT(IN) :: time_0 ! not used
72
73	c dynamical variables:
74	REAL,INTENT(INOUT) :: ucov(ip1jmp1,llm) ! zonal covariant wind
75	REAL,INTENT(INOUT) :: vcov(ip1jm,llm) ! meridional covariant wind
76	REAL,INTENT(INOUT) :: teta(ip1jmp1,llm) ! potential temperature
77	REAL,INTENT(INOUT) :: ps(ip1jmp1) ! surface pressure (Pa)
78	REAL,INTENT(INOUT) :: masse(ip1jmp1,llm) ! air mass
79	REAL,INTENT(INOUT) :: phis(ip1jmp1) ! geopotentiat at the surface
80	REAL,INTENT(INOUT) :: q(ip1jmp1,llm,nqtot) ! advected tracers
81
82	REAL p (ip1jmp1,llmp1 ) ! interlayer pressure
83	REAL pks(ip1jmp1) ! exner at the surface
84	REAL pk(ip1jmp1,llm) ! exner at mid-layer
85	REAL pkf(ip1jmp1,llm) ! filtered exner at mid-layer
86	REAL phi(ip1jmp1,llm) ! geopotential
87	REAL w(ip1jmp1,llm) ! vertical velocity
88
89	real zqmin,zqmax
90
91	c variables dynamiques intermediaire pour le transport
92	REAL pbaru(ip1jmp1,llm),pbarv(ip1jm,llm) !flux de masse
93
94	c variables dynamiques au pas -1
95	REAL vcovm1(ip1jm,llm),ucovm1(ip1jmp1,llm)
96	REAL tetam1(ip1jmp1,llm),psm1(ip1jmp1)
97	REAL massem1(ip1jmp1,llm)
98
99	c tendances dynamiques
100	REAL dv(ip1jm,llm),du(ip1jmp1,llm)
101	REAL dteta(ip1jmp1,llm),dq(ip1jmp1,llm,nqtot),dp(ip1jmp1)
102
103	c tendances de la dissipation
104	REAL dvdis(ip1jm,llm),dudis(ip1jmp1,llm)
105	REAL dtetadis(ip1jmp1,llm)
106
107	c tendances physiques
108	REAL dvfi(ip1jm,llm),dufi(ip1jmp1,llm)
109	REAL dtetafi(ip1jmp1,llm),dqfi(ip1jmp1,llm,nqtot),dpfi(ip1jmp1)
110
111	c variables pour le fichier histoire
112	REAL dtav ! intervalle de temps elementaire
113
114	REAL tppn(iim),tpps(iim),tpn,tps
115	c
116	INTEGER itau,itaufinp1,iav
117	! INTEGER iday ! jour julien
118	REAL time
119
120	REAL SSUM
121	! REAL finvmaold(ip1jmp1,llm)
122
123	cym LOGICAL lafin
124	LOGICAL :: lafin=.false.
125	INTEGER ij,iq,l
126	INTEGER ik
127
128	real time_step, t_wrt, t_ops
129
130	! REAL rdayvrai,rdaym_ini
131	! jD_cur: jour julien courant
132	! jH_cur: heure julienne courante
133	REAL :: jD_cur, jH_cur
134	INTEGER :: an, mois, jour
135	REAL :: secondes
136
137	LOGICAL first,callinigrads
138	cIM : pour sortir les param. du modele dans un fis. netcdf 110106
139	save first
140	data first/.true./
141	real dt_cum
142	character*10 infile
143	integer zan, tau0, thoriid
144	integer nid_ctesGCM
145	save nid_ctesGCM
146	real degres
147	real rlong(iip1), rlatg(jjp1)
148	real zx_tmp_2d(iip1,jjp1)
149	integer ndex2d(iip1*jjp1)
150	logical ok_sync
151	parameter (ok_sync = .true.)
152	logical physic
153
154	data callinigrads/.true./
155	character*10 string10
156
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	if (nday>=0) then
195	itaufin = nday*day_step
196	else
197	itaufin = -nday
198	endif
199	itaufinp1 = itaufin +1
200	itau = 0
201	physic=.true.
202	if (iflag_phys==0.or.iflag_phys==2) physic=.false.
203
204	c iday = day_ini+itau/day_step
205	c time = REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
206	c IF(time.GT.1.) THEN
207	c time = time-1.
208	c iday = iday+1
209	c ENDIF
210
211
212	c-----------------------------------------------------------------------
213	c On initialise la pression et la fonction d'Exner :
214	c --------------------------------------------------
215
216	dq(:,:,:)=0.
217	CALL pression ( ip1jmp1, ap, bp, ps, p )
218	if (pressure_exner) then
219	CALL exner_hyb( ip1jmp1, ps, p, pks, pk, pkf )
220	else
221	CALL exner_milieu( ip1jmp1, ps, p, pks, pk, pkf )
222	endif
223
224	c-----------------------------------------------------------------------
225	c Debut de l'integration temporelle:
226	c ----------------------------------
227
228	1 CONTINUE ! Matsuno Forward step begins here
229
230	jD_cur = jD_ref + day_ini - day_ref + &
231	& itau/day_step
232	jH_cur = jH_ref + start_time + &
233	& mod(itau,day_step)/float(day_step)
234	jD_cur = jD_cur + int(jH_cur)
235	jH_cur = jH_cur - int(jH_cur)
236
237	if (ok_iso_verif) then
238	call check_isotopes_seq(q,ip1jmp1,'leapfrog 321')
239	endif !if (ok_iso_verif) then
240
241	#ifdef CPP_IOIPSL
242	if (ok_guide) then
243	call guide_main(itau,ucov,vcov,teta,q,masse,ps)
244	endif
245	#endif
246
247
248	c
249	c IF( MOD( itau, 10* day_step ).EQ.0 ) THEN
250	c CALL test_period ( ucov,vcov,teta,q,p,phis )
251	c PRINT *,' ---- Test_period apres continue OK ! -----', itau
252	c ENDIF
253	c
254
255	! Save fields obtained at previous time step as '...m1'
256	CALL SCOPY( ijmllm ,vcov , 1, vcovm1 , 1 )
257	CALL SCOPY( ijp1llm,ucov , 1, ucovm1 , 1 )
258	CALL SCOPY( ijp1llm,teta , 1, tetam1 , 1 )
259	CALL SCOPY( ijp1llm,masse, 1, massem1, 1 )
260	CALL SCOPY( ip1jmp1, ps , 1, psm1 , 1 )
261
262	forward = .TRUE.
263	leapf = .FALSE.
264	dt = dtvr
265
266	c ... P.Le Van .26/04/94 ....
267	! Ehouarn: finvmaold is actually not used
268	! CALL SCOPY ( ijp1llm, masse, 1, finvmaold, 1 )
269	! CALL filtreg ( finvmaold ,jjp1, llm, -2,2, .TRUE., 1 )
270
271	if (ok_iso_verif) then
272	call check_isotopes_seq(q,ip1jmp1,'leapfrog 400')
273	endif !if (ok_iso_verif) then
274
275	2 CONTINUE ! Matsuno backward or leapfrog step begins here
276
277	c-----------------------------------------------------------------------
278
279	c date:
280	c -----
281
282
283	c gestion des appels de la physique et des dissipations:
284	c ------------------------------------------------------
285	c
286	c ... P.Le Van ( 6/02/95 ) ....
287
288	apphys = .FALSE.
289	statcl = .FALSE.
290	conser = .FALSE.
291	apdiss = .FALSE.
292
293	IF( purmats ) THEN
294	! Purely Matsuno time stepping
295	IF( MOD(itau,iconser) .EQ.0.AND. forward ) conser = .TRUE.
296	IF( MOD(itau,dissip_period ).EQ.0.AND..NOT.forward )
297	s apdiss = .TRUE.
298	IF( MOD(itau,iphysiq ).EQ.0.AND..NOT.forward
299	s .and. physic ) apphys = .TRUE.
300	ELSE
301	! Leapfrog/Matsuno time stepping
302	IF( MOD(itau ,iconser) .EQ. 0 ) conser = .TRUE.
303	IF( MOD(itau+1,dissip_period).EQ.0 .AND. .NOT. forward )
304	s apdiss = .TRUE.
305	IF( MOD(itau+1,iphysiq).EQ.0.AND.physic ) apphys=.TRUE.
306	END IF
307
308	! Ehouarn: for Shallow Water case (ie: 1 vertical layer),
309	! supress dissipation step
310	if (llm.eq.1) then
311	apdiss=.false.
312	endif
313
314
315	if (ok_iso_verif) then
316	call check_isotopes_seq(q,ip1jmp1,'leapfrog 589')
317	endif !if (ok_iso_verif) then
318
319	c-----------------------------------------------------------------------
320	c calcul des tendances dynamiques:
321	c --------------------------------
322
323	! compute geopotential phi()
324	CALL geopot ( ip1jmp1, teta , pk , pks, phis , phi )
325
326	time = jD_cur + jH_cur
327	CALL caldyn
328	$ ( itau,ucov,vcov,teta,ps,masse,pk,pkf,phis ,
329	$ phi,conser,du,dv,dteta,dp,w, pbaru,pbarv, time )
330
331
332	c-----------------------------------------------------------------------
333	c calcul des tendances advection des traceurs (dont l'humidite)
334	c -------------------------------------------------------------
335
336	if (ok_iso_verif) then
337	call check_isotopes_seq(q,ip1jmp1,
338	& 'leapfrog 686: avant caladvtrac')
339	endif !if (ok_iso_verif) then
340
341	IF( forward. OR . leapf ) THEN
342	! Ehouarn: NB: fields sent to advtrac are those at the beginning of the time step
343	CALL caladvtrac(q,pbaru,pbarv,
344	* p, masse, dq, teta,
345	. flxw, pk)
346	!write(,) 'caladvtrac 346'
347
348
349	IF (offline) THEN
350	Cmaf stokage du flux de masse pour traceurs OFF-LINE
351
352	#ifdef CPP_IOIPSL
353	CALL fluxstokenc(pbaru,pbarv,masse,teta,phi,phis,
354	. dtvr, itau)
355	#endif
356
357
358	ENDIF ! of IF (offline)
359	c
360	ENDIF ! of IF( forward. OR . leapf )
361
362
363	c-----------------------------------------------------------------------
364	c integrations dynamique et traceurs:
365	c ----------------------------------
366
367	if (ok_iso_verif) then
368	write(,) 'leapfrog 720'
369	call check_isotopes_seq(q,ip1jmp1,'leapfrog 756')
370	endif !if (ok_iso_verif) then
371
372	CALL integrd ( nqtot,vcovm1,ucovm1,tetam1,psm1,massem1 ,
373	$ dv,du,dteta,dq,dp,vcov,ucov,teta,q,ps,masse,phis )
374	! $ finvmaold )
375
376	if (ok_iso_verif) then
377	write(,) 'leapfrog 724'
378	call check_isotopes_seq(q,ip1jmp1,'leapfrog 762')
379	endif !if (ok_iso_verif) then
380
381	c .P.Le Van (26/04/94 ajout de finvpold dans l'appel d'integrd)
382	c
383	c-----------------------------------------------------------------------
384	c calcul des tendances physiques:
385	c -------------------------------
386	c ######## P.Le Van ( Modif le 6/02/95 ) ###########
387	c
388	IF( purmats ) THEN
389	IF( itau.EQ.itaufin.AND..NOT.forward ) lafin = .TRUE.
390	ELSE
391	IF( itau+1. EQ. itaufin ) lafin = .TRUE.
392	ENDIF
393	c
394	c
395	IF( apphys ) THEN
396	c
397	c ....... Ajout P.Le Van ( 17/04/96 ) ...........
398	c
399
400	CALL pression ( ip1jmp1, ap, bp, ps, p )
401	if (pressure_exner) then
402	CALL exner_hyb( ip1jmp1, ps, p,pks, pk, pkf )
403	else
404	CALL exner_milieu( ip1jmp1, ps, p, pks, pk, pkf )
405	endif
406
407	! Appel a geopot ajoute le 2014/05/08 pour garantir la convergence numerique
408	! avec dyn3dmem
409	CALL geopot ( ip1jmp1, teta , pk , pks, phis , phi )
410
411	! rdaym_ini = itau * dtvr / daysec
412	! rdayvrai = rdaym_ini + day_ini
413	! jD_cur = jD_ref + day_ini - day_ref
414	! $ + int (itau * dtvr / daysec)
415	! jH_cur = jH_ref + &
416	! & (itau * dtvr / daysec - int(itau * dtvr / daysec))
417	jD_cur = jD_ref + day_ini - day_ref + &
418	& itau/day_step
419
420	IF (planet_type .eq."generic") THEN
421	! AS: we make jD_cur to be pday
422	jD_cur = int(day_ini + itau/day_step)
423	ENDIF
424
425	jH_cur = jH_ref + start_time + &
426	& mod(itau,day_step)/float(day_step)
427	jD_cur = jD_cur + int(jH_cur)
428	jH_cur = jH_cur - int(jH_cur)
429	! write(lunout,*)'itau, jD_cur = ', itau, jD_cur, jH_cur
430	! call ju2ymds(jD_cur+jH_cur, an, mois, jour, secondes)
431	! write(lunout,*)'current date = ',an, mois, jour, secondes
432
433	c rajout debug
434	c lafin = .true.
435
436
437	c Inbterface avec les routines de phylmd (phymars ... )
438	c -----------------------------------------------------
439
440	c+jld
441
442	c Diagnostique de conservation de l'énergie : initialisation
443	IF (ip_ebil_dyn.ge.1 ) THEN
444	ztit='bil dyn'
445	! Ehouarn: be careful, diagedyn is Earth-specific!
446	IF (planet_type.eq."earth") THEN
447	CALL diagedyn(ztit,2,1,1,dtphys
448	& , ucov , vcov , ps, p ,pk , teta , q(:,:,1), q(:,:,2))
449	ENDIF
450	ENDIF ! of IF (ip_ebil_dyn.ge.1 )
451	c-jld
452	#ifdef CPP_IOIPSL
453	cIM decommenter les 6 lignes suivantes pour sortir quelques parametres dynamiques de LMDZ
454	cIM uncomment next 6 lines to get some parameters for LMDZ dynamics
455	c IF (first) THEN
456	c first=.false.
457	c#include "ini_paramLMDZ_dyn.h"
458	c ENDIF
459	c
460	c#include "write_paramLMDZ_dyn.h"
461	c
462	#endif
463	! #endif of #ifdef CPP_IOIPSL
464	#ifdef CPP_PHYS
465	CALL calfis( lafin , jD_cur, jH_cur,
466	$ ucov,vcov,teta,q,masse,ps,p,pk,phis,phi ,
467	$ du,dv,dteta,dq,
468	$ flxw,dufi,dvfi,dtetafi,dqfi,dpfi )
469	#endif
470	c ajout des tendances physiques:
471	c ------------------------------
472	CALL addfi( dtphys, leapf, forward ,
473	$ ucov, vcov, teta , q ,ps ,
474	$ dufi, dvfi, dtetafi , dqfi ,dpfi )
475	! since addfi updates ps(), also update p(), masse() and pk()
476	CALL pression (ip1jmp1,ap,bp,ps,p)
477	CALL massdair(p,masse)
478	if (pressure_exner) then
479	CALL exner_hyb(ip1jmp1,ps,p,pks,pk,pkf)
480	else
481	CALL exner_milieu(ip1jmp1,ps,p,pks,pk,pkf)
482	endif
483
484	IF (ok_strato) THEN
485	CALL top_bound( vcov,ucov,teta,masse,dtphys)
486	ENDIF
487
488	c
489	c Diagnostique de conservation de l'énergie : difference
490	IF (ip_ebil_dyn.ge.1 ) THEN
491	ztit='bil phys'
492	IF (planet_type.eq."earth") THEN
493	CALL diagedyn(ztit,2,1,1,dtphys
494	& , ucov , vcov , ps, p ,pk , teta , q(:,:,1), q(:,:,2))
495	ENDIF
496	ENDIF ! of IF (ip_ebil_dyn.ge.1 )
497
498	ENDIF ! of IF( apphys )
499
500	IF(iflag_phys.EQ.2) THEN ! "Newtonian" case
501	! Academic case : Simple friction and Newtonan relaxation
502	! -------------------------------------------------------
503	DO l=1,llm
504	DO ij=1,ip1jmp1
505	teta(ij,l)=teta(ij,l)-dtvr*
506	& (teta(ij,l)-tetarappel(ij,l))(knewt_g+knewt_t(l)clat4(ij))
507	ENDDO
508	ENDDO ! of DO l=1,llm
509
510	if (planet_type.eq."giant") then
511	! add an intrinsic heat flux at the base of the atmosphere
512	teta(:,1)=teta(:,1)+dtvraire(:)ihf/cpp/masse(:,1)
513	endif
514
515	call friction(ucov,vcov,dtvr)
516
517	! Sponge layer (if any)
518	IF (ok_strato) THEN
519	! dufi(:,:)=0.
520	! dvfi(:,:)=0.
521	! dtetafi(:,:)=0.
522	! dqfi(:,:,:)=0.
523	! dpfi(:)=0.
524	! CALL top_bound(vcov,ucov,teta,masse,dufi,dvfi,dtetafi)
525	CALL top_bound( vcov,ucov,teta,masse,dtvr)
526	! CALL addfi( dtvr, leapf, forward ,
527	! $ ucov, vcov, teta , q ,ps ,
528	! $ dufi, dvfi, dtetafi , dqfi ,dpfi )
529	ENDIF ! of IF (ok_strato)
530	ENDIF ! of IF (iflag_phys.EQ.2)
531
532
533	c-jld
534
535	CALL pression ( ip1jmp1, ap, bp, ps, p )
536	if (pressure_exner) then
537	CALL exner_hyb( ip1jmp1, ps, p, pks, pk, pkf )
538	else
539	CALL exner_milieu( ip1jmp1, ps, p, pks, pk, pkf )
540	endif
541	CALL massdair(p,masse)
542
543	if (ok_iso_verif) then
544	call check_isotopes_seq(q,ip1jmp1,'leapfrog 1196')
545	endif !if (ok_iso_verif) then
546
547	c-----------------------------------------------------------------------
548	c dissipation horizontale et verticale des petites echelles:
549	c ----------------------------------------------------------
550
551	IF(apdiss) THEN
552
553
554	c calcul de l'energie cinetique avant dissipation
555	call covcont(llm,ucov,vcov,ucont,vcont)
556	call enercin(vcov,ucov,vcont,ucont,ecin0)
557
558	c dissipation
559	CALL dissip(vcov,ucov,teta,p,dvdis,dudis,dtetadis)
560	ucov=ucov+dudis
561	vcov=vcov+dvdis
562	c teta=teta+dtetadis
563
564
565	c------------------------------------------------------------------------
566	if (dissip_conservative) then
567	C On rajoute la tendance due a la transform. Ec -> E therm. cree
568	C lors de la dissipation
569	call covcont(llm,ucov,vcov,ucont,vcont)
570	call enercin(vcov,ucov,vcont,ucont,ecin)
571	dtetaecdt= (ecin0-ecin)/ pk
572	c teta=teta+dtetaecdt
573	dtetadis=dtetadis+dtetaecdt
574	endif
575	teta=teta+dtetadis
576	c------------------------------------------------------------------------
577
578
579	c ....... P. Le Van ( ajout le 17/04/96 ) ...........
580	c ... Calcul de la valeur moyenne, unique de h aux poles .....
581	c
582
583	DO l = 1, llm
584	DO ij = 1,iim
585	tppn(ij) = aire( ij ) * teta( ij ,l)
586	tpps(ij) = aire(ij+ip1jm) * teta(ij+ip1jm,l)
587	ENDDO
588	tpn = SSUM(iim,tppn,1)/apoln
589	tps = SSUM(iim,tpps,1)/apols
590
591	DO ij = 1, iip1
592	teta( ij ,l) = tpn
593	teta(ij+ip1jm,l) = tps
594	ENDDO
595	ENDDO
596
597	if (1 == 0) then
598	!!! Ehouarn: lines here 1) kill 1+1=2 in the dynamics
599	!!! 2) should probably not be here anyway
600	!!! but are kept for those who would want to revert to previous behaviour
601	DO ij = 1,iim
602	tppn(ij) = aire( ij ) * ps ( ij )
603	tpps(ij) = aire(ij+ip1jm) * ps (ij+ip1jm)
604	ENDDO
605	tpn = SSUM(iim,tppn,1)/apoln
606	tps = SSUM(iim,tpps,1)/apols
607
608	DO ij = 1, iip1
609	ps( ij ) = tpn
610	ps(ij+ip1jm) = tps
611	ENDDO
612	endif ! of if (1 == 0)
613
614	END IF ! of IF(apdiss)
615
616	c ajout debug
617	c IF( lafin ) then
618	c abort_message = 'Simulation finished'
619	c call abort_gcm(modname,abort_message,0)
620	c ENDIF
621
622	c ********************************************************************
623	c ********************************************************************
624	c .... fin de l'integration dynamique et physique pour le pas itau ..
625	c ********************************************************************
626	c ********************************************************************
627
628	c preparation du pas d'integration suivant ......
629
630	if (ok_iso_verif) then
631	call check_isotopes_seq(q,ip1jmp1,'leapfrog 1509')
632	endif !if (ok_iso_verif) then
633
634	IF ( .NOT.purmats ) THEN
635	c ........................................................
636	c .............. schema matsuno + leapfrog ..............
637	c ........................................................
638
639	IF(forward. OR. leapf) THEN
640	itau= itau + 1
641	c iday= day_ini+itau/day_step
642	c time= REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
643	c IF(time.GT.1.) THEN
644	c time = time-1.
645	c iday = iday+1
646	c ENDIF
647	ENDIF
648
649
650	IF( itau. EQ. itaufinp1 ) then
651	if (flag_verif) then
652	write(79,*) 'ucov',ucov
653	write(80,*) 'vcov',vcov
654	write(81,*) 'teta',teta
655	write(82,*) 'ps',ps
656	write(83,*) 'q',q
657	WRITE(85,*) 'q1 = ',q(:,:,1)
658	WRITE(86,*) 'q3 = ',q(:,:,3)
659	endif
660
661	abort_message = 'Simulation finished'
662
663	call abort_gcm(modname,abort_message,0)
664	ENDIF
665	c-----------------------------------------------------------------------
666	c ecriture du fichier histoire moyenne:
667	c -------------------------------------
668
669	IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin) THEN
670	IF(itau.EQ.itaufin) THEN
671	iav=1
672	ELSE
673	iav=0
674	ENDIF
675
676	IF (ok_dynzon) THEN
677	#ifdef CPP_IOIPSL
678	CALL bilan_dyn(2,dtvriperiod,dtvrday_step*periodav,
679	& ps,masse,pk,pbaru,pbarv,teta,phi,ucov,vcov,q)
680	#endif
681	END IF
682	IF (ok_dyn_ave) THEN
683	#ifdef CPP_IOIPSL
684	CALL writedynav(itau,vcov,
685	& ucov,teta,pk,phi,q,masse,ps,phis)
686	#endif
687	ENDIF
688
689	ENDIF ! of IF((MOD(itau,iperiod).EQ.0).OR.(itau.EQ.itaufin))
690
691	if (ok_iso_verif) then
692	call check_isotopes_seq(q,ip1jmp1,'leapfrog 1584')
693	endif !if (ok_iso_verif) then
694
695	c-----------------------------------------------------------------------
696	c ecriture de la bande histoire:
697	c ------------------------------
698
699	IF( MOD(itau,iecri).EQ.0) THEN
700	! Ehouarn: output only during LF or Backward Matsuno
701	if (leapf.or.(.not.leapf.and.(.not.forward))) then
702	CALL geopot(ip1jmp1,teta,pk,pks,phis,phi)
703	unat=0.
704	do l=1,llm
705	unat(iip2:ip1jm,l)=ucov(iip2:ip1jm,l)/cu(iip2:ip1jm)
706	vnat(:,l)=vcov(:,l)/cv(:)
707	enddo
708	#ifdef CPP_IOIPSL
709	if (ok_dyn_ins) then
710	! write(lunout,*) "leapfrog: call writehist, itau=",itau
711	CALL writehist(itau,vcov,ucov,teta,phi,q,masse,ps,phis)
712	! call WriteField('ucov',reshape(ucov,(/iip1,jmp1,llm/)))
713	! call WriteField('vcov',reshape(vcov,(/iip1,jjm,llm/)))
714	! call WriteField('teta',reshape(teta,(/iip1,jmp1,llm/)))
715	! call WriteField('ps',reshape(ps,(/iip1,jmp1/)))
716	! call WriteField('masse',reshape(masse,(/iip1,jmp1,llm/)))
717	endif ! of if (ok_dyn_ins)
718	#endif
719	! For some Grads outputs of fields
720	if (output_grads_dyn) then
721	#include "write_grads_dyn.h"
722	endif
723	endif ! of if (leapf.or.(.not.leapf.and.(.not.forward)))
724	ENDIF ! of IF(MOD(itau,iecri).EQ.0)
725
726	IF(itau.EQ.itaufin) THEN
727
728
729	! if (planet_type.eq."earth") then
730	! Write an Earth-format restart file
731	CALL dynredem1("restart.nc",start_time,
732	& vcov,ucov,teta,q,masse,ps)
733	! endif ! of if (planet_type.eq."earth")
734
735	CLOSE(99)
736	!!! Ehouarn: Why not stop here and now?
737	ENDIF ! of IF (itau.EQ.itaufin)
738
739	c-----------------------------------------------------------------------
740	c gestion de l'integration temporelle:
741	c ------------------------------------
742
743	IF( MOD(itau,iperiod).EQ.0 ) THEN
744	GO TO 1
745	ELSE IF ( MOD(itau-1,iperiod). EQ. 0 ) THEN
746
747	IF( forward ) THEN
748	c fin du pas forward et debut du pas backward
749
750	forward = .FALSE.
751	leapf = .FALSE.
752	GO TO 2
753
754	ELSE
755	c fin du pas backward et debut du premier pas leapfrog
756
757	leapf = .TRUE.
758	dt = 2.*dtvr
759	GO TO 2
760	END IF ! of IF (forward)
761	ELSE
762
763	c ...... pas leapfrog .....
764
765	leapf = .TRUE.
766	dt = 2.*dtvr
767	GO TO 2
768	END IF ! of IF (MOD(itau,iperiod).EQ.0)
769	! ELSEIF (MOD(itau-1,iperiod).EQ.0)
770
771	ELSE ! of IF (.not.purmats)
772
773	if (ok_iso_verif) then
774	call check_isotopes_seq(q,ip1jmp1,'leapfrog 1664')
775	endif !if (ok_iso_verif) then
776
777	c ........................................................
778	c .............. schema matsuno ...............
779	c ........................................................
780	IF( forward ) THEN
781
782	itau = itau + 1
783	c iday = day_ini+itau/day_step
784	c time = REAL(itau-(iday-day_ini)*day_step)/day_step+time_0
785	c
786	c IF(time.GT.1.) THEN
787	c time = time-1.
788	c iday = iday+1
789	c ENDIF
790
791	forward = .FALSE.
792	IF( itau. EQ. itaufinp1 ) then
793	abort_message = 'Simulation finished'
794	call abort_gcm(modname,abort_message,0)
795	ENDIF
796	GO TO 2
797
798	ELSE ! of IF(forward) i.e. backward step
799
800	if (ok_iso_verif) then
801	call check_isotopes_seq(q,ip1jmp1,'leapfrog 1698')
802	endif !if (ok_iso_verif) then
803
804	IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin) THEN
805	IF(itau.EQ.itaufin) THEN
806	iav=1
807	ELSE
808	iav=0
809	ENDIF
810
811	IF (ok_dynzon) THEN
812	#ifdef CPP_IOIPSL
813	CALL bilan_dyn(2,dtvriperiod,dtvrday_step*periodav,
814	& ps,masse,pk,pbaru,pbarv,teta,phi,ucov,vcov,q)
815	#endif
816	ENDIF
817	IF (ok_dyn_ave) THEN
818	#ifdef CPP_IOIPSL
819	CALL writedynav(itau,vcov,
820	& ucov,teta,pk,phi,q,masse,ps,phis)
821	#endif
822	ENDIF
823
824	ENDIF ! of IF(MOD(itau,iperiod).EQ.0 .OR. itau.EQ.itaufin)
825
826	IF(MOD(itau,iecri ).EQ.0) THEN
827	c IF(MOD(itau,iecri*day_step).EQ.0) THEN
828	CALL geopot(ip1jmp1,teta,pk,pks,phis,phi)
829	unat=0.
830	do l=1,llm
831	unat(iip2:ip1jm,l)=ucov(iip2:ip1jm,l)/cu(iip2:ip1jm)
832	vnat(:,l)=vcov(:,l)/cv(:)
833	enddo
834	#ifdef CPP_IOIPSL
835	if (ok_dyn_ins) then
836	! write(lunout,*) "leapfrog: call writehist (b)",
837	! & itau,iecri
838	CALL writehist(itau,vcov,ucov,teta,phi,q,masse,ps,phis)
839	endif ! of if (ok_dyn_ins)
840	#endif
841	! For some Grads outputs
842	if (output_grads_dyn) then
843	#include "write_grads_dyn.h"
844	endif
845
846	ENDIF ! of IF(MOD(itau,iecri ).EQ.0)
847
848	IF(itau.EQ.itaufin) THEN
849	! if (planet_type.eq."earth") then
850	CALL dynredem1("restart.nc",start_time,
851	& vcov,ucov,teta,q,masse,ps)
852	! endif ! of if (planet_type.eq."earth")
853	ENDIF ! of IF(itau.EQ.itaufin)
854
855	forward = .TRUE.
856	GO TO 1
857
858	ENDIF ! of IF (forward)
859
860	END IF ! of IF(.not.purmats)
861
862	STOP
863	END

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