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meso_inifis.F @ 35

Last change on this file since 35 was 35, checked in by aslmd, 15 years ago
LMD_MM_MARS: travail de preparation a un dossier libf commun avec LMDZ.MARS
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1	SUBROUTINE meso_inifis(ngrid,nlayer,nq,
2	$ wdt,
3	$ wday_ini,wdaysec,
4	$ wappel_phys,wecri_phys,
5	$ plat,plon,parea,
6	$ prad,pg,pr,pcpp,
7	$ womeg,wmugaz,
8	$ wyear_day,wperiheli,waphelie,wperi_day,wobliquit,
9	$ wz0,wemin_turb,wlmixmin,
10	$ wemissiv,wemissiceN,wemissiceS,walbediceN,walbediceS,
11	$ wiceradiusN,wiceradiusS,wdtemisiceN,wdtemisiceS,
12	$ walbedodat,wphisfi,wvolcapa,
13	$ wzmea,wzstd,wzsig,wzgam,wzthe,
14	$ wtheta,wpsi)
15
16	c=======================================================================
17	c
18	c CAREFUL: THIS IS A VERSION TO BE USED WITH WRF !!!
19	c
20	c ... CHECK THE ****WRF lines
21	c
22	c=======================================================================
23	!
24	!=======================================================================
25	!
26	! purpose:
27	! -------
28	!
29	! Initialisation for the physical parametrisations of the LMD
30	! martian atmospheric general circulation modele.
31	!
32	! author: Frederic Hourdin 15 / 10 /93
33	! -------
34	! modified: Sebastien Lebonnois 11/06/2003 (new callphys.def)
35	! Ehouarn Millour (oct. 2008) tracers are now identified
36	! by their names and may not be contiguously
37	! stored in the q(:,:,:,:) array
38	! E.M. (june 2009) use getin routine to load parameters
39	! adapted to the WRF use - Aymeric Spiga - Jan 2009 - Jan 2007
40	!
41	!
42	! arguments:
43	! ----------
44	!
45	! input:
46	! ------
47	!
48	! ngrid Size of the horizontal grid.
49	! All internal loops are performed on that grid.
50	! nlayer Number of vertical layers.
51	! pdayref Day of reference for the simulation
52	! pday Number of days counted from the North. Spring
53	! equinoxe.
54	!
55	!=======================================================================
56	!
57	!-----------------------------------------------------------------------
58	! declarations:
59	! -------------
60	! to use 'getin'
61	!! **WRF a new stuff to be checked
62	USE ioipsl_getincom
63	IMPLICIT NONE
64	#include "dimensions.h"
65	#include "dimphys.h"
66	#include "planete.h"
67	#include "comcstfi.h"
68	#include "comsaison.h"
69	#include "comdiurn.h"
70	#include "comgeomfi.h"
71	#include "callkeys.h"
72	#include "surfdat.h"
73	#include "dimradmars.h" !!new
74	#include "yomaer.h" !!new -- prob. pour remplir les proprietes
75	#include "slope.h"
76	#include "comsoil.h" !!**WRF -- needed to fill volcapa
77	INTEGER ngrid,nlayer,nq
78
79	REAL prad,pg,pr,pcpp,pdaysec
80	REAL womeg,wmugaz,wdaysec
81	REAL wyear_day,wperiheli,waphelie,wperi_day,wobliquit
82	REAL wz0,wemin_turb,wlmixmin
83	REAL wemissiv,wemissiceN,wemissiceS,walbediceN,walbediceS
84
85	REAL wiceradiusN,wiceradiusS,wdtemisiceN,wdtemisiceS
86	REAL walbedodat(ngrid),wphisfi(ngrid)
87	REAL wzmea(ngrid),wzstd(ngrid),wzsig(ngrid)
88	REAL wzgam(ngrid),wzthe(ngrid)
89	REAL wtheta(ngrid),wpsi(ngrid)
90	REAL wvolcapa
91
92	! REAL prad,pg,pr,pcpp,pdaysec,ptimestep
93	!
94	! INTEGER ngrid,nlayer
95	REAL plat(ngrid),plon(ngrid),parea(ngridmx)
96	integer wday_ini
97	REAL wdt
98	INTEGER ig,ierr
99
100	INTEGER wecri_phys, wappel_phys
101
102	! EXTERNAL iniorbit,orbite
103	EXTERNAL SSUM
104	REAL SSUM
105
106	CHARACTER ch1*12
107	CHARACTER ch80*80
108
109	! logical chem, h2o
110
111	! chem = .false.
112	! h2o = .false.
113
114	c ****WRF
115	c
116	c------------------------------------------------------
117	c Fill some parameters in the 'include' files
118	c >> Do part of the job previously done by phyetat0.F
119	c >> Complete list of parameters is found in tabfi.F
120	c------------------------------------------------------
121	c
122	c Values are defined in the module_model_constants.F WRF routine
123	c
124	! in 'comcstfi.h'
125	rad=prad
126	cpp=pcpp
127	g=pg
128	r=pr
129	rcp=r/cpp
130	daysec=wdaysec
131	omeg=womeg
132	mugaz=wmugaz
133	print*,"check: rad,cpp,g,r,rcp,daysec,omeg,mugaz"
134	print*,rad,cpp,g,r,rcp,daysec,omeg,mugaz
135
136	! in 'planet.h'
137	year_day=wyear_day
138	periheli=wperiheli
139	aphelie=waphelie
140	peri_day=wperi_day
141	obliquit=wobliquit
142	z0=wz0
143	emin_turb=wemin_turb
144	lmixmin=wlmixmin
145	print*,"check: year_day,periheli,aphelie,peri_day,obliquit"
146	print*,year_day,periheli,aphelie,peri_day,obliquit
147	print*,"check: z0,emin_turb,lmixmin"
148	print*,z0,emin_turb,lmixmin
149
150	! in 'surfdat.h'
151	emissiv=wemissiv
152	emisice(1)=wemissiceN
153	emisice(2)=wemissiceS
154	albedice(1)=walbediceN
155	albedice(2)=walbediceS
156	iceradius(1)=wiceradiusN
157	iceradius(2)=wiceradiusS
158	dtemisice(1)=wdtemisiceN
159	dtemisice(2)=wdtemisiceS
160	print*,"check: emissiv,emisice,albedice,iceradius,dtemisice"
161	print*,emissiv,emisice,albedice,iceradius,dtemisice
162
163	c
164	c Values are defined in the WPS processing
165	c
166	albedodat(:)=walbedodat(:)
167	!!!!! ***WRF inertiedat was moved, new physics !!
168	!inertiedat(:)=winertiedat(:)
169	phisfi(:)=wphisfi(:)
170	print*,"check: albedodat(1),phisfi(1)"
171	print*,albedodat(1),phisfi(1)
172	print*,"check: albedodat(end),phisfi(end)"
173	print*,albedodat(ngrid),phisfi(ngrid)
174
175	! NB: usually, gravity wave scheme is useless in mesoscale modeling
176	! NB: we however keep the option for coarse grid case ...
177	zmea(:)=wzmea(:)
178	zstd(:)=wzstd(:)
179	zsig(:)=wzsig(:)
180	zgam(:)=wzgam(:)
181	zthe(:)=wzthe(:)
182	print*,"check: gw param"
183	print*,zmea(1),zmea(ngrid)
184	print*,zstd(1),zstd(ngrid)
185	print*,zsig(1),zsig(ngrid)
186	print*,zgam(1),zgam(ngrid)
187	print*,zthe(1),zthe(ngrid)
188
189	!
190	! in slope.h
191	!
192	theta_sl(:)=wtheta(:)
193	psi_sl(:)=wpsi(:)
194	print*,"check: theta_sl(1),psi_sl(1)"
195	print*,theta_sl(1),psi_sl(1)
196	print*,"check: theta_sl(end),psi_sl(end)"
197	print*,theta_sl(ngrid),psi_sl(ngrid)
198
199	!
200	! in comsoil.h
201	!
202	volcapa=wvolcapa
203	print*,"check: volcapa"
204	print*,volcapa
205
206
207	c ****WRF
208
209
210	! rad=prad
211	! daysec=pdaysec
212	! dtphys=ptimestep
213	! cpp=pcpp
214	! g=pg
215	! r=pr
216	! rcp=r/cpp
217
218	! --------------------------------------------------------
219	! The usual Tests
220	! --------------
221	IF (nlayer.NE.nlayermx) THEN
222	PRINT*,'STOP in inifis'
223	PRINT*,'Probleme de dimensions :'
224	PRINT*,'nlayer = ',nlayer
225	PRINT*,'nlayermx = ',nlayermx
226	STOP
227	ENDIF
228
229	IF (ngrid.NE.ngridmx) THEN
230	PRINT*,'STOP in inifis'
231	PRINT*,'Probleme de dimensions :'
232	PRINT*,'ngrid = ',ngrid
233	PRINT*,'ngridmx = ',ngridmx
234	STOP
235	ENDIF
236
237	! --------------------------------------------------------------
238	! Reading the "callphys.def" file controlling some key options
239	! --------------------------------------------------------------
240
241	! check that 'callphys.def' file is around
242	OPEN(99,file='callphys.def',status='old',form='formatted'
243	& ,iostat=ierr)
244	CLOSE(99)
245
246	IF(ierr.EQ.0) THEN
247	!PRINT*
248	!PRINT*
249	PRINT*,'--------------------------------------------'
250	PRINT*,' inifis: Parametres pour la physique (callphys.def)'
251	PRINT*,'--------------------------------------------'
252
253
254	write(,) "Run with or without tracer transport ?"
255	tracer=.false. ! default value
256	call getin("tracer",tracer)
257	write(,) " tracer = ",tracer
258
259	write(,) "Diurnal cycle ?"
260	write(,) "(if diurnal=False, diurnal averaged solar heating)"
261	diurnal=.true. ! default value
262	call getin("diurnal",diurnal)
263	write(,) " diurnal = ",diurnal
264
265	write(,) "Seasonal cycle ?"
266	write(,) "(if season=False, Ls stays constant, to value ",
267	& "set in 'start'"
268	season=.true. ! default value
269	call getin("season",season)
270	write(,) " season = ",season
271
272	write(,) "Write some extra output to the screen ?"
273	lwrite=.false. ! default value
274	call getin("lwrite",lwrite)
275	write(,) " lwrite = ",lwrite
276
277	write(,) "Save statistics in file stats.nc ?"
278	!callstats=.true. ! default value
279	callstats=.false. ! default value
280	call getin("callstats",callstats)
281	write(,) " callstats = ",callstats
282
283	write(,) "Save EOF profiles in file 'profiles' for ",
284	& "Climate Database?"
285	calleofdump=.false. ! default value
286	call getin("calleofdump",calleofdump)
287	write(,) " calleofdump = ",calleofdump
288
289	write(,) "Dust scenario: 1=constant dust (read from startfi",
290	& " or set as tauvis); 2=Viking scenario; =3 MGS scenario,",
291	& "=4 Mars Year 24 from TES assimilation, ",
292	& "=24,25 or 26 :Mars Year 24,25 or 26 from TES assimilation"
293	iaervar=3 ! default value
294	call getin("iaervar",iaervar)
295	write(,) " iaervar = ",iaervar
296
297	write(,) "Reference (visible) dust opacity at 700 Pa ",
298	& "(matters only if iaervar=1)"
299	! NB: default value of tauvis is set/read in startfi.nc file
300	call getin("tauvis",tauvis)
301	write(,) " tauvis = ",tauvis
302
303	write(,) "Dust vertical distribution:"
304	write(,) "(=1 top set by topdustref parameter;",
305	& " =2 Viking scenario; =3 MGS scenario)"
306	iddist=3 ! default value
307	call getin("iddist",iddist)
308	write(,) " iddist = ",iddist
309
310	write(,) "Dust top altitude (km). (Matters only if iddist=1)"
311	topdustref= 90.0 ! default value
312	call getin("topdustref",topdustref)
313	write(,) " topdustref = ",topdustref
314
315	write(,) "call radiative transfer ?"
316	callrad=.true. ! default value
317	call getin("callrad",callrad)
318	write(,) " callrad = ",callrad
319
320	write(,) "call NLTE radiative schemes ?",
321	& "(matters only if callrad=T)"
322	callnlte=.false. ! default value
323	call getin("callnlte",callnlte)
324	write(,) " callnlte = ",callnlte
325
326	write(,) "call CO2 NIR absorption ?",
327	& "(matters only if callrad=T)"
328	callnirco2=.false. ! default value
329	call getin("callnirco2",callnirco2)
330	write(,) " callnirco2 = ",callnirco2
331
332	write(,) "call turbulent vertical diffusion ?"
333	calldifv=.true. ! default value
334	call getin("calldifv",calldifv)
335	write(,) " calldifv = ",calldifv
336
337	write(,) "call convective adjustment ?"
338	calladj=.true. ! default value
339	call getin("calladj",calladj)
340	write(,) " calladj = ",calladj
341
342
343	write(,) "call CO2 condensation ?"
344	callcond=.true. ! default value
345	call getin("callcond",callcond)
346	write(,) " callcond = ",callcond
347
348	write(,)"call thermal conduction in the soil ?"
349	callsoil=.true. ! default value
350	call getin("callsoil",callsoil)
351	write(,) " callsoil = ",callsoil
352
353
354	write(,)"call Lott's gravity wave/subgrid topography ",
355	& "scheme ?"
356	calllott=.true. ! default value
357	call getin("calllott",calllott)
358	write(,)" calllott = ",calllott
359
360
361	write(,)"rad.transfer is computed every iradia",
362	& " physical timestep"
363	iradia=1 ! default value
364	call getin("iradia",iradia)
365	write(,)" iradia = ",iradia
366
367
368	write(,)"Output of the exchange coefficient mattrix ?",
369	& "(for diagnostics only)"
370	callg2d=.false. ! default value
371	call getin("callg2d",callg2d)
372	write(,)" callg2d = ",callg2d
373
374	write(,)"Rayleigh scattering : (should be .false. for now)"
375	rayleigh=.false.
376	call getin("rayleigh",rayleigh)
377	write(,)" rayleigh = ",rayleigh
378
379
380	! TRACERS:
381
382	write(,)"Transported dust ? (if >0, use 'dustbin' dust bins)"
383	dustbin=0 ! default value
384	call getin("dustbin",dustbin)
385	write(,)" dustbin = ",dustbin
386
387	write(,)"Radiatively active dust ? (matters if dustbin>0)"
388	active=.false. ! default value
389	call getin("active",active)
390	write(,)" active = ",active
391
392	! Test of incompatibility:
393	! if active is used, then dustbin should be > 0
394
395	if (active.and.(dustbin.lt.1)) then
396	print*,'if active is used, then dustbin should > 0'
397	stop
398	endif
399
400	write(,)"use mass and number mixing ratios to predict",
401	& " dust size ?"
402	doubleq=.false. ! default value
403	call getin("doubleq",doubleq)
404	write(,)" doubleq = ",doubleq
405
406	submicron=.false. ! default value
407	call getin("submicron",submicron)
408	write(,)" submicron = ",submicron
409
410	! Test of incompatibility:
411	! if doubleq is used, then dustbin should be 2
412
413	if (doubleq.and.(dustbin.ne.2)) then
414	print*,'if doubleq is used, then dustbin should be 2'
415	stop
416	endif
417	if (doubleq.and.submicron.and.(nqmx.LT.3)) then
418	print*,'If doubleq is used with a submicron tracer,'
419	print*,' then the number of tracers has to be'
420	print*,' larger than 3.'
421	stop
422	endif
423
424	write(,)"dust lifted by GCM surface winds ?"
425	lifting=.false. ! default value
426	call getin("lifting",lifting)
427	write(,)" lifting = ",lifting
428
429	! Test of incompatibility:
430	! if lifting is used, then dustbin should be > 0
431
432	if (lifting.and.(dustbin.lt.1)) then
433	print*,'if lifting is used, then dustbin should > 0'
434	stop
435	endif
436
437	write(,)" dust lifted by dust devils ?"
438	callddevil=.false. !default value
439	call getin("callddevil",callddevil)
440	write(,)" callddevil = ",callddevil
441
442
443	! Test of incompatibility:
444	! if dustdevil is used, then dustbin should be > 0
445
446	if (callddevil.and.(dustbin.lt.1)) then
447	print*,'if dustdevil is used, then dustbin should > 0'
448	stop
449	endif
450
451	write(,)"Dust scavenging by CO2 snowfall ?"
452	scavenging=.false. ! default value
453	call getin("scavenging",scavenging)
454	write(,)" scavenging = ",scavenging
455
456
457	! Test of incompatibility:
458	! if scavenging is used, then dustbin should be > 0
459
460	if (scavenging.and.(dustbin.lt.1)) then
461	print*,'if scavenging is used, then dustbin should > 0'
462	stop
463	endif
464
465	write(,) "Gravitationnal sedimentation ?"
466	sedimentation=.true. ! default value
467	call getin("sedimentation",sedimentation)
468	write(,) " sedimentation = ",sedimentation
469
470	write(,) "Radiatively active transported atmospheric ",
471	& "water ice ?"
472	activice=.false. ! default value
473	call getin("activice",activice)
474	write(,) " activice = ",activice
475
476	write(,) "Compute water cycle ?"
477	water=.false. ! default value
478	call getin("water",water)
479	write(,) " water = ",water
480
481	! Test of incompatibility:
482
483	if (activice.and..not.water) then
484	print*,'if activice is used, water should be used too'
485	stop
486	endif
487
488	if (water.and..not.tracer) then
489	print*,'if water is used, tracer should be used too'
490	stop
491	endif
492
493	! Test of incompatibility:
494
495	write(,) "Permanent water caps at poles ?",
496	& " .true. is RECOMMENDED"
497	write(,) "(with .true., North cap is a source of water ",
498	& "and South pole is a cold trap)"
499	caps=.true. ! default value
500	call getin("caps",caps)
501	write(,) " caps = ",caps
502
503	write(,) "photochemistry: include chemical species"
504	photochem=.false. ! default value
505	call getin("photochem",photochem)
506	write(,) " photochem = ",photochem
507
508
509	! THERMOSPHERE
510
511	write(,) "call thermosphere ?"
512	callthermos=.false. ! default value
513	call getin("callthermos",callthermos)
514	write(,) " callthermos = ",callthermos
515
516
517	write(,) " water included without cycle ",
518	& "(only if water=.false.)"
519	thermoswater=.false. ! default value
520	call getin("thermoswater",thermoswater)
521	write(,) " thermoswater = ",thermoswater
522
523	write(,) "call thermal conduction ?",
524	& " (only if callthermos=.true.)"
525	callconduct=.false. ! default value
526	call getin("callconduct",callconduct)
527	write(,) " callconduct = ",callconduct
528
529	write(,) "call EUV heating ?",
530	& " (only if callthermos=.true.)"
531	calleuv=.false. ! default value
532	call getin("calleuv",calleuv)
533	write(,) " calleuv = ",calleuv
534
535	write(,) "call molecular viscosity ?",
536	& " (only if callthermos=.true.)"
537	callmolvis=.false. ! default value
538	call getin("callmolvis",callmolvis)
539	write(,) " callmolvis = ",callmolvis
540
541	write(,) "call molecular diffusion ?",
542	& " (only if callthermos=.true.)"
543	callmoldiff=.false. ! default value
544	call getin("callmoldiff",callmoldiff)
545	write(,) " callmoldiff = ",callmoldiff
546
547
548	write(,) "call thermospheric photochemistry ?",
549	& " (only if callthermos=.true.)"
550	thermochem=.false. ! default value
551	call getin("thermochem",thermochem)
552	write(,) " thermochem = ",thermochem
553
554	write(,) "date for solar flux calculation:",
555	& " (1985 < date < 2002)"
556	write(,) "(Solar min=1996.4 ave=1993.4 max=1990.6)"
557	solarcondate=1993.4 ! default value
558	call getin("solarcondate",solarcondate)
559	write(,) " solarcondate = ",solarcondate
560
561
562	if (.not.callthermos) then
563	if (thermoswater) then
564	print*,'if thermoswater is set, callthermos must be true'
565	stop
566	endif
567	if (callconduct) then
568	print*,'if callconduct is set, callthermos must be true'
569	stop
570	endif
571	if (calleuv) then
572	print*,'if calleuv is set, callthermos must be true'
573	stop
574	endif
575	if (callmolvis) then
576	print*,'if callmolvis is set, callthermos must be true'
577	stop
578	endif
579	if (callmoldiff) then
580	print*,'if callmoldiff is set, callthermos must be true'
581	stop
582	endif
583	if (thermochem) then
584	print*,'if thermochem is set, callthermos must be true'
585	stop
586	endif
587	endif
588
589	! Test of incompatibility:
590	! if photochem is used, then water should be used too
591
592	if (photochem.and..not.water) then
593	print*,'if photochem is used, water should be used too'
594	stop
595	endif
596
597	! if callthermos is used, then thermoswater should be used too
598	! (if water not used already)
599
600	if (callthermos .and. .not.water) then
601	if (callthermos .and. .not.thermoswater) then
602	print*,'if callthermos is used, water or thermoswater
603	& should be used too'
604	stop
605	endif
606	endif
607
608	PRINT*,'--------------------------------------------'
609	PRINT*
610	PRINT*
611	ELSE
612	write(,)
613	write(,) 'Cannot read file callphys.def. Is it here ?'
614	stop
615	ENDIF
616
617	8000 FORMAT(t5,a12,l8)
618	8001 FORMAT(t5,a12,i8)
619
620
621
622	c ****WRF
623	c*****************************************************
624	c Since it comes from WRF settings, we have to
625	c fill dtphys in the include file
626	c It must be set now, because it is used afterwards
627	c
628	c Opportunity is taken to fill ecri_phys as well
629	c*****************************************************
630	dtphys=wdt*float(wappel_phys)
631	print*,'Physical timestep (s) ',dtphys
632	ecri_phys=wecri_phys
633	print*,'Physical frequency for writing ',ecri_phys
634	c
635	c ****WRF
636
637
638	PRINT*
639	PRINT*,'inifis: daysec',daysec
640	PRINT*
641	PRINT*,'inifis: The radiative transfer is computed:'
642	PRINT*,' each ',iradia,' physical time-step'
643	PRINT,' or each ',iradiadtphys,' seconds'
644	PRINT*
645	! --------------------------------------------------------------
646	! Managing the Longwave radiative transfer
647	! --------------------------------------------------------------
648
649	! In most cases, the run just use the following values :
650	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
651	callemis=.true.
652	! ilwd=10*int(daysec/dtphys) ! bug before 22/10/01
653	ilwd=1
654	ilwn=1 !2
655	ilwb=1 !2
656	linear=.true.
657	ncouche=3
658	alphan=0.4
659	semi=0
660
661	! BUT people working hard on the LW may want to read them in 'radia.def'
662	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
663
664	OPEN(99,file='radia.def',status='old',form='formatted'
665	. ,iostat=ierr)
666	IF(ierr.EQ.0) THEN
667	write(,) 'inifis: Reading radia.def !!!'
668	READ(99,fmt='(a)') ch1
669	READ(99,*) callemis
670	WRITE(*,8000) ch1,callemis
671
672	READ(99,fmt='(a)') ch1
673	READ(99,*) iradia
674	WRITE(*,8001) ch1,iradia
675
676	READ(99,fmt='(a)') ch1
677	READ(99,*) ilwd
678	WRITE(*,8001) ch1,ilwd
679
680	READ(99,fmt='(a)') ch1
681	READ(99,*) ilwn
682	WRITE(*,8001) ch1,ilwn
683
684	READ(99,fmt='(a)') ch1
685	READ(99,*) linear
686	WRITE(*,8000) ch1,linear
687
688	READ(99,fmt='(a)') ch1
689	READ(99,*) ncouche
690	WRITE(*,8001) ch1,ncouche
691
692	READ(99,fmt='(a)') ch1
693	READ(99,*) alphan
694	WRITE(,) ch1,alphan
695
696	READ(99,fmt='(a)') ch1
697	READ(99,*) ilwb
698	WRITE(*,8001) ch1,ilwb
699
700
701	READ(99,fmt='(a)') ch1
702	READ(99,'(l1)') callg2d
703	WRITE(*,8000) ch1,callg2d
704
705	READ(99,fmt='(a)') ch1
706	READ(99,*) semi
707	WRITE(,) ch1,semi
708	end if
709	CLOSE(99)
710
711	!-----------------------------------------------------------------------
712	! Some more initialization:
713	! ------------------------
714
715	! in 'comgeomfi.h'
716	CALL SCOPY(ngrid,plon,1,long,1)
717	CALL SCOPY(ngrid,plat,1,lati,1)
718	CALL SCOPY(ngrid,parea,1,area,1)
719	totarea=SSUM(ngridmx,area,1)
720
721	! in 'comdiurn.h'
722	DO ig=1,ngrid
723	sinlat(ig)=sin(plat(ig))
724	coslat(ig)=cos(plat(ig))
725	sinlon(ig)=sin(plon(ig))
726	coslon(ig)=cos(plon(ig))
727	ENDDO
728
729	pi=2.*asin(1.) ! NB: pi is a common in comcstfi.h
730
731	! managing the tracers, and tests:
732	! -------------------------------
733	! Ehouarn: removed; as these tests are now done in initracer.F
734	! if(tracer) then
735	!
736	!! when photochem is used, nqchem_min is the rank
737	!! of the first chemical species
738	!
739	!! Ehouarn: nqchem_min is now meaningless and no longer used
740	!! nqchem_min = 1
741	! if (photochem .or. callthermos) then
742	! chem = .true.
743	! end if
744	!
745	! if (water .or. thermoswater) h2o = .true.
746	!
747	!! TESTS
748	!
749	! print*,'inifis: TRACERS:'
750	! write(,) " chem=",chem," h2o=",h2o
751	!! write(,) " doubleq=",doubleq
752	!! write(,) " dustbin=",dustbin
753	!
754	! if ((doubleq).and.(h2o).and.
755	! $ (chem)) then
756	! print*,' 2 dust tracers (doubleq)'
757	! print*,' 1 water vapour tracer'
758	! print*,' 1 water ice tracer'
759	! print*,nqmx-4,' chemistry tracers'
760	! endif
761	!
762	! if ((doubleq).and.(h2o).and.
763	! $ .not.(chem)) then
764	! print*,' 2 dust tracers (doubleq)'
765	! print*,' 1 water vapour tracer'
766	! print*,' 1 water ice tracer'
767	! if (nqmx.LT.4) then
768	! print*,'nqmx should be at least equal to'
769	! print*,'4 with these options.'
770	! stop
771	! endif
772	! endif
773	!
774	! if (.not.(doubleq).and.(h2o).and.
775	! $ (chem)) then
776	! if (dustbin.gt.0) then
777	! print*,dustbin,' dust bins'
778	! endif
779	! print*,nqmx-2-dustbin,' chemistry tracers'
780	! print*,' 1 water vapour tracer'
781	! print*,' 1 water ice tracer'
782	! endif
783	!
784	! if (.not.(doubleq).and.(h2o).and.
785	! $ .not.(chem)) then
786	! if (dustbin.gt.0) then
787	! print*,dustbin,' dust bins'
788	! endif
789	! print*,' 1 water vapour tracer'
790	! print*,' 1 water ice tracer'
791	! if (nqmx.gt.(dustbin+2)) then
792	! print*,'nqmx should be ',(dustbin+2),
793	! $ ' with these options...'
794	! print*,'(or check callphys.def)'
795	! endif
796	! if (nqmx.lt.(dustbin+2)) then
797	! write(,) "inifis: nqmx.lt.(dustbin+2)"
798	! stop
799	! endif
800	! endif
801	!
802	! endif ! of if (tracer)
803	!
804	! RETURN
805	END

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