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inifis.F @ 633

Last change on this file since 633 was 633, checked in by tnavarro, 13 years ago
last scheme in commit r626 led to a wrong physical behaviour. This version uses a new subtimestep for microphysics that should be faster than the last one.
File size: 26.6 KB

Line
1	SUBROUTINE inifis(
2	$ ngrid,nlayer
3	$ ,day_ini,pdaysec,ptimestep
4	$ ,plat,plon,parea
5	$ ,prad,pg,pr,pcpp
6	#ifdef MESOSCALE
7	#include "meso_inc/meso_inc_inifisinvar.F"
8	#endif
9	$ )
10	!
11	!=======================================================================
12	!
13	! purpose:
14	! -------
15	!
16	! Initialisation for the physical parametrisations of the LMD
17	! martian atmospheric general circulation modele.
18	!
19	! author: Frederic Hourdin 15 / 10 /93
20	! -------
21	! modified: Sebastien Lebonnois 11/06/2003 (new callphys.def)
22	! Ehouarn Millour (oct. 2008) tracers are now identified
23	! by their names and may not be contiguously
24	! stored in the q(:,:,:,:) array
25	! E.M. (june 2009) use getin routine to load parameters
26	! adapted to the mesoscale use - Aymeric Spiga - 01/2007-07/2011
27	!
28	!
29	! arguments:
30	! ----------
31	!
32	! input:
33	! ------
34	!
35	! ngrid Size of the horizontal grid.
36	! All internal loops are performed on that grid.
37	! nlayer Number of vertical layers.
38	! pdayref Day of reference for the simulation
39	! pday Number of days counted from the North. Spring
40	! equinoxe.
41	!
42	!=======================================================================
43	!
44	!-----------------------------------------------------------------------
45	! declarations:
46	! -------------
47	! to use 'getin'
48	USE ioipsl_getincom
49	IMPLICIT NONE
50	#include "dimensions.h"
51	#include "dimphys.h"
52	#include "planete.h"
53	#include "comcstfi.h"
54	#include "comsaison.h"
55	#include "comdiurn.h"
56	#include "comgeomfi.h"
57	#include "callkeys.h"
58	#include "surfdat.h"
59	#include "dimradmars.h"
60	#include "yomaer.h"
61	#include "datafile.h"
62	#include "slope.h"
63	#include "microphys.h"
64	#include "tracer.h"
65	#ifdef MESOSCALE
66	#include "comsoil.h" !!MESOSCALE -- needed to fill volcapa
67	#include "meso_inc/meso_inc_inifisvar.F"
68	#endif
69	REAL prad,pg,pr,pcpp,pdaysec
70
71	REAL ptimestep
72	INTEGER day_ini
73
74	INTEGER ngrid,nlayer
75	REAL plat(ngrid),plon(ngrid),parea(ngridmx)
76	INTEGER ig,ierr
77
78	! EXTERNAL iniorbit,orbite
79	EXTERNAL SSUM
80	REAL SSUM
81
82	CHARACTER ch1*12
83	CHARACTER ch80*80
84
85	! logical chem, h2o
86
87	! chem = .false.
88	! h2o = .false.
89
90	rad=prad
91	cpp=pcpp
92	g=pg
93	r=pr
94	rcp=r/cpp
95	daysec=pdaysec
96	dtphys=ptimestep
97	#ifdef MESOSCALE
98	#include "meso_inc/meso_inc_inifisini.F"
99	#endif
100
101	! --------------------------------------------------------
102	! The usual Tests
103	! --------------
104	IF (nlayer.NE.nlayermx) THEN
105	PRINT*,'STOP in inifis'
106	PRINT*,'Probleme de dimensions :'
107	PRINT*,'nlayer = ',nlayer
108	PRINT*,'nlayermx = ',nlayermx
109	STOP
110	ENDIF
111
112	IF (ngrid.NE.ngridmx) THEN
113	PRINT*,'STOP in inifis'
114	PRINT*,'Probleme de dimensions :'
115	PRINT*,'ngrid = ',ngrid
116	PRINT*,'ngridmx = ',ngridmx
117	STOP
118	ENDIF
119
120	! --------------------------------------------------------------
121	! Reading the "callphys.def" file controlling some key options
122	! --------------------------------------------------------------
123
124	! check that 'callphys.def' file is around
125	OPEN(99,file='callphys.def',status='old',form='formatted'
126	& ,iostat=ierr)
127	CLOSE(99)
128
129	IF(ierr.EQ.0) THEN
130	PRINT*
131	PRINT*
132	PRINT*,'--------------------------------------------'
133	PRINT*,' inifis: Parameters for the physics (callphys.def)'
134	PRINT*,'--------------------------------------------'
135
136	write(,) "Directory where external input files are:"
137	datafile="/u/forget/WWW/datagcm/datafile"
138	call getin("datadir",datafile) ! default path
139	write(,) " datafile = ",trim(datafile)
140
141	write(,) "Run with or without tracer transport ?"
142	tracer=.false. ! default value
143	call getin("tracer",tracer)
144	write(,) " tracer = ",tracer
145
146	write(,) "Diurnal cycle ?"
147	write(,) "(if diurnal=False, diurnal averaged solar heating)"
148	diurnal=.true. ! default value
149	call getin("diurnal",diurnal)
150	write(,) " diurnal = ",diurnal
151
152	write(,) "Seasonal cycle ?"
153	write(,) "(if season=False, Ls stays constant, to value ",
154	& "set in 'start'"
155	season=.true. ! default value
156	call getin("season",season)
157	write(,) " season = ",season
158
159	write(,) "Write some extra output to the screen ?"
160	lwrite=.false. ! default value
161	call getin("lwrite",lwrite)
162	write(,) " lwrite = ",lwrite
163
164	write(,) "Save statistics in file stats.nc ?"
165	#ifdef MESOSCALE
166	callstats=.false. ! default value
167	#else
168	callstats=.true. ! default value
169	#endif
170	call getin("callstats",callstats)
171	write(,) " callstats = ",callstats
172
173	write(,) "Save EOF profiles in file 'profiles' for ",
174	& "Climate Database?"
175	calleofdump=.false. ! default value
176	call getin("calleofdump",calleofdump)
177	write(,) " calleofdump = ",calleofdump
178
179	write(,) "Dust scenario: 1=constant dust (read from startfi",
180	& " or set as tauvis); 2=Viking scenario; =3 MGS scenario,",
181	& "=4 Mars Year 24 from TES assimilation, ",
182	& "=24,25 or 26 :Mars Year 24,25 or 26 from TES assimilation"
183	iaervar=3 ! default value
184	call getin("iaervar",iaervar)
185	write(,) " iaervar = ",iaervar
186
187	write(,) "Reference (visible) dust opacity at 610 Pa ",
188	& "(matters only if iaervar=1)"
189	! NB: default value of tauvis is set/read in startfi.nc file
190	call getin("tauvis",tauvis)
191	write(,) " tauvis = ",tauvis
192
193	write(,) "Dust vertical distribution:"
194	write(,) "(=1 top set by topdustref parameter;",
195	& " =2 Viking scenario; =3 MGS scenario)"
196	iddist=3 ! default value
197	call getin("iddist",iddist)
198	write(,) " iddist = ",iddist
199
200	write(,) "Dust top altitude (km). (Matters only if iddist=1)"
201	topdustref= 90.0 ! default value
202	call getin("topdustref",topdustref)
203	write(,) " topdustref = ",topdustref
204
205	write(,) "Prescribed surface thermal flux (H/(rho*cp),K m/s)"
206	tke_heat_flux=0. ! default value
207	call getin("tke_heat_flux",tke_heat_flux)
208	write(,) " tke_heat_flux = ",tke_heat_flux
209	write(,) " 0 means the usual schemes are computing"
210
211	write(,) "call radiative transfer ?"
212	callrad=.true. ! default value
213	call getin("callrad",callrad)
214	write(,) " callrad = ",callrad
215
216	write(,) "call slope insolation scheme ?",
217	& "(matters only if callrad=T)"
218	#ifdef MESOSCALE
219	callslope=.true. ! default value
220	#else
221	callslope=.false. ! default value (not supported yet)
222	#endif
223	call getin("callslope",callslope)
224	write(,) " callslope = ",callslope
225
226	write(,) "call NLTE radiative schemes ?",
227	& "(matters only if callrad=T)"
228	callnlte=.false. ! default value
229	call getin("callnlte",callnlte)
230	write(,) " callnlte = ",callnlte
231
232	nltemodel=0 !default value
233	write(,) "NLTE model?"
234	write(,) "0 -> old model, static O"
235	write(,) "1 -> old model, dynamic O"
236	write(,) "2 -> new model"
237	write(,) "(matters only if callnlte=T)"
238	call getin("nltemodel",nltemodel)
239	write(,) " nltemodel = ",nltemodel
240
241	write(,) "call CO2 NIR absorption ?",
242	& "(matters only if callrad=T)"
243	callnirco2=.false. ! default value
244	call getin("callnirco2",callnirco2)
245	write(,) " callnirco2 = ",callnirco2
246
247	write(,) "New NIR NLTE correction ?",
248	$ "0-> old model (no correction)",
249	$ "1-> new correction",
250	$ "(matters only if callnirco2=T)"
251	#ifdef MESOSCALE
252	nircorr=0 !default value. this is OK below 60 km.
253	#else
254	nircorr=0 !default value
255	#endif
256	call getin("nircorr",nircorr)
257	write(,) " nircorr = ",nircorr
258
259	write(,) "call turbulent vertical diffusion ?"
260	calldifv=.true. ! default value
261	call getin("calldifv",calldifv)
262	write(,) " calldifv = ",calldifv
263
264	write(,) "call thermals ?"
265	calltherm=.false. ! default value
266	call getin("calltherm",calltherm)
267	write(,) " calltherm = ",calltherm
268
269	write(,) "output thermal diagnostics ?"
270	outptherm=.false. ! default value
271	call getin("outptherm",outptherm)
272	write(,) " outptherm = ",outptherm
273
274	write(,) "call convective adjustment ?"
275	calladj=.true. ! default value
276	call getin("calladj",calladj)
277	write(,) " calladj = ",calladj
278
279	if (calltherm .and. (.not. calladj)) then
280	print*,'Convadj has to be activated when using thermals'
281	stop
282	endif
283
284	write(,) "call Richardson-based surface layer ?"
285	callrichsl=.false. ! default value
286	call getin("callrichsl",callrichsl)
287	write(,) " callrichsl = ",callrichsl
288
289	if (calltherm .and. .not.callrichsl) then
290	print*,'WARNING WARNING WARNING'
291	print*,'if calltherm=T we strongly advise that '
292	print*,'you use the new surface layer scheme '
293	print*,'by setting callrichsl=T '
294	endif
295
296	if (calladj .and. callrichsl .and. (.not. calltherm)) then
297	print*,'You should not be calling the convective adjustment
298	& scheme with the Richardson surface-layer and without the thermals
299	&. This approach is not
300	& physically consistent and can lead to unrealistic friction
301	& values.'
302	print*,'If you want to use the Ri. surface-layer, either
303	& activate thermals OR de-activate the convective adjustment.'
304	stop
305	endif
306
307	write(,) "call CO2 condensation ?"
308	callcond=.true. ! default value
309	call getin("callcond",callcond)
310	write(,) " callcond = ",callcond
311
312	write(,)"call thermal conduction in the soil ?"
313	callsoil=.true. ! default value
314	call getin("callsoil",callsoil)
315	write(,) " callsoil = ",callsoil
316
317
318	write(,)"call Lott's gravity wave/subgrid topography ",
319	& "scheme ?"
320	calllott=.true. ! default value
321	call getin("calllott",calllott)
322	write(,)" calllott = ",calllott
323
324
325	write(,)"rad.transfer is computed every iradia",
326	& " physical timestep"
327	iradia=1 ! default value
328	call getin("iradia",iradia)
329	write(,)" iradia = ",iradia
330
331
332	write(,)"Output of the exchange coefficient mattrix ?",
333	& "(for diagnostics only)"
334	callg2d=.false. ! default value
335	call getin("callg2d",callg2d)
336	write(,)" callg2d = ",callg2d
337
338	write(,)"Rayleigh scattering : (should be .false. for now)"
339	rayleigh=.false.
340	call getin("rayleigh",rayleigh)
341	write(,)" rayleigh = ",rayleigh
342
343
344	! TRACERS:
345
346	! dustbin
347	write(,)"Transported dust ? (if >0, use 'dustbin' dust bins)"
348	dustbin=0 ! default value
349	call getin("dustbin",dustbin)
350	write(,)" dustbin = ",dustbin
351	! active
352	write(,)"Radiatively active dust ? (matters if dustbin>0)"
353	active=.false. ! default value
354	call getin("active",active)
355	write(,)" active = ",active
356
357	! Test of incompatibility:
358	! if active is used, then dustbin should be > 0
359
360	if (active.and.(dustbin.lt.1)) then
361	print*,'if active is used, then dustbin should > 0'
362	stop
363	endif
364	! doubleq
365	write(,)"use mass and number mixing ratios to predict",
366	& " dust size ?"
367	doubleq=.false. ! default value
368	call getin("doubleq",doubleq)
369	write(,)" doubleq = ",doubleq
370	! submicron
371	submicron=.false. ! default value
372	call getin("submicron",submicron)
373	write(,)" submicron = ",submicron
374
375	! Test of incompatibility:
376	! if doubleq is used, then dustbin should be 2
377
378	if (doubleq.and.(dustbin.ne.2)) then
379	print*,'if doubleq is used, then dustbin should be 2'
380	stop
381	endif
382	if (doubleq.and.submicron.and.(nqmx.LT.3)) then
383	print*,'If doubleq is used with a submicron tracer,'
384	print*,' then the number of tracers has to be'
385	print*,' larger than 3.'
386	stop
387	endif
388	! lifting
389	write(,)"dust lifted by GCM surface winds ?"
390	lifting=.false. ! default value
391	call getin("lifting",lifting)
392	write(,)" lifting = ",lifting
393
394	! Test of incompatibility:
395	! if lifting is used, then dustbin should be > 0
396
397	if (lifting.and.(dustbin.lt.1)) then
398	print*,'if lifting is used, then dustbin should > 0'
399	stop
400	endif
401	! callddevil
402	write(,)" dust lifted by dust devils ?"
403	callddevil=.false. !default value
404	call getin("callddevil",callddevil)
405	write(,)" callddevil = ",callddevil
406
407	! Test of incompatibility:
408	! if dustdevil is used, then dustbin should be > 0
409
410	if (callddevil.and.(dustbin.lt.1)) then
411	print*,'if dustdevil is used, then dustbin should > 0'
412	stop
413	endif
414	! sedimentation
415	write(,) "Gravitationnal sedimentation ?"
416	sedimentation=.true. ! default value
417	call getin("sedimentation",sedimentation)
418	write(,) " sedimentation = ",sedimentation
419	! activice
420	write(,) "Radiatively active transported atmospheric ",
421	& "water ice ?"
422	activice=.false. ! default value
423	call getin("activice",activice)
424	write(,) " activice = ",activice
425	! water
426	write(,) "Compute water cycle ?"
427	water=.false. ! default value
428	call getin("water",water)
429	write(,) " water = ",water
430
431	! Test of incompatibility:
432
433	if (activice.and..not.water) then
434	print*,'if activice is used, water should be used too'
435	stop
436	endif
437
438	if (water.and..not.tracer) then
439	print*,'if water is used, tracer should be used too'
440	stop
441	endif
442
443	! water ice clouds effective variance distribution for sedimentaion
444	write(,) "effective variance for water ice clouds ?"
445	nuice_sed=0.45
446	call getin("nuice_sed",nuice_sed)
447	write(,) "water_param nueff Sedimentation:", nuice_sed
448
449	! ccn factor if no scavenging
450	write(,) "water param CCN reduc. factor ?", ccn_factor
451	ccn_factor = 4.5
452	call getin("ccn_factor",ccn_factor)
453	write(,)" ccn_factor = ",ccn_factor
454	write(,)"Careful: only used when microphys=F, otherwise"
455	write(,)"the contact parameter is used instead;"
456
457	! microphys
458	write(,)"Microphysical scheme for water-ice clouds?"
459	microphys=.false. ! default value
460	call getin("microphys",microphys)
461	write(,)" microphys = ",microphys
462
463	! microphysical parameter contact
464	write(,) "water contact parameter ?"
465	mteta = 0.95
466	call getin("mteta",mteta)
467	write(,) "mteta = ", mteta
468
469	! scavenging
470	write(,)"Dust scavenging by H2O/CO2 snowfall ?"
471	scavenging=.false. ! default value
472	call getin("scavenging",scavenging)
473	write(,)" scavenging = ",scavenging
474
475
476	! Test of incompatibility:
477	! if scavenging is used, then dustbin should be > 0
478
479	if (scavenging.and.(dustbin.lt.1)) then
480	print*,'if scavenging is used, then dustbin should > 0'
481	stop
482	endif
483	if ((microphys.and..not.doubleq).or.
484	& (microphys.and..not.active).or.
485	& (microphys.and..not.scavenging).or.
486	& (microphys.and..not.water)) then
487	print*,'if microphys is used, then doubleq,'
488	print*,'active, water and scavenging must all be used!'
489	stop
490	endif
491	if ((scavenging.and..not.doubleq).or.
492	& (scavenging.and..not.active).or.
493	& (scavenging.and..not.water).or.
494	& (scavenging.and..not.microphys)) then
495	print*,'if scavenging is used, then doubleq,'
496	print*,'active, water and microphys must all be used!'
497	stop
498	endif
499
500	! Test of incompatibility:
501
502	write(,) "Permanent water caps at poles ?",
503	& " .true. is RECOMMENDED"
504	write(,) "(with .true., North cap is a source of water ",
505	& "and South pole is a cold trap)"
506	caps=.true. ! default value
507	call getin("caps",caps)
508	write(,) " caps = ",caps
509
510	! albedo_h2o_ice
511	write(,) "water ice albedo ?"
512	albedo_h2o_ice=0.45
513	call getin("albedo_h2o_ice",albedo_h2o_ice)
514	write(,) " albedo_h2o_ice = ",albedo_h2o_ice
515	! inert_h2o_ice
516	write(,) "water ice thermal inertia ?"
517	inert_h2o_ice=2400 ! (J.m^-2.K^-1.s^-1/2)
518	call getin("inert_h2o_ice",inert_h2o_ice)
519	write(,) " inert_h2o_ice = ",inert_h2o_ice
520	! frost_albedo_threshold
521	write(,) "frost thickness threshold for albedo ?"
522	frost_albedo_threshold=0.005 ! 5.4 mic (i.e 0.005 kg.m-2)
523	call getin("frost_albedo_threshold",
524	& frost_albedo_threshold)
525	write(,) " frost_albedo_threshold = ",
526	& frost_albedo_threshold
527
528	! call Titus crocus line -- DEFAULT IS NONE
529	write(,) "Titus crocus line ?"
530	tituscap=.false. ! default value
531	call getin("tituscap",tituscap)
532	write(,) "tituscap",tituscap
533
534
535	write(,) "photochemistry: include chemical species"
536	photochem=.false. ! default value
537	call getin("photochem",photochem)
538	write(,) " photochem = ",photochem
539
540
541	! THERMOSPHERE
542
543	write(,) "call thermosphere ?"
544	callthermos=.false. ! default value
545	call getin("callthermos",callthermos)
546	write(,) " callthermos = ",callthermos
547
548
549	write(,) " water included without cycle ",
550	& "(only if water=.false.)"
551	thermoswater=.false. ! default value
552	call getin("thermoswater",thermoswater)
553	write(,) " thermoswater = ",thermoswater
554
555	write(,) "call thermal conduction ?",
556	& " (only if callthermos=.true.)"
557	callconduct=.false. ! default value
558	call getin("callconduct",callconduct)
559	write(,) " callconduct = ",callconduct
560
561	write(,) "call EUV heating ?",
562	& " (only if callthermos=.true.)"
563	calleuv=.false. ! default value
564	call getin("calleuv",calleuv)
565	write(,) " calleuv = ",calleuv
566
567	write(,) "call molecular viscosity ?",
568	& " (only if callthermos=.true.)"
569	callmolvis=.false. ! default value
570	call getin("callmolvis",callmolvis)
571	write(,) " callmolvis = ",callmolvis
572
573	write(,) "call molecular diffusion ?",
574	& " (only if callthermos=.true.)"
575	callmoldiff=.false. ! default value
576	call getin("callmoldiff",callmoldiff)
577	write(,) " callmoldiff = ",callmoldiff
578
579
580	write(,) "call thermospheric photochemistry ?",
581	& " (only if callthermos=.true.)"
582	thermochem=.false. ! default value
583	call getin("thermochem",thermochem)
584	write(,) " thermochem = ",thermochem
585
586	write(,) "date for solar flux calculation:",
587	& " (1985 < date < 2002)"
588	write(,) "(Solar min=1996.4 ave=1993.4 max=1990.6)"
589	solarcondate=1993.4 ! default value
590	call getin("solarcondate",solarcondate)
591	write(,) " solarcondate = ",solarcondate
592
593	write(,) "UV heating efficiency:",
594	& "measured values between 0.19 and 0.23 (Fox et al. 1996)",
595	& "lower values may be used to compensate low 15 um cooling"
596	euveff=0.21 !default value
597	call getin("euveff",euveff)
598	write(,) " euveff = ", euveff
599
600	if (.not.callthermos) then
601	if (thermoswater) then
602	print*,'if thermoswater is set, callthermos must be true'
603	stop
604	endif
605	if (callconduct) then
606	print*,'if callconduct is set, callthermos must be true'
607	stop
608	endif
609	if (calleuv) then
610	print*,'if calleuv is set, callthermos must be true'
611	stop
612	endif
613	if (callmolvis) then
614	print*,'if callmolvis is set, callthermos must be true'
615	stop
616	endif
617	if (callmoldiff) then
618	print*,'if callmoldiff is set, callthermos must be true'
619	stop
620	endif
621	if (thermochem) then
622	print*,'if thermochem is set, callthermos must be true'
623	stop
624	endif
625	endif
626
627	! Test of incompatibility:
628	! if photochem is used, then water should be used too
629
630	if (photochem.and..not.water) then
631	print*,'if photochem is used, water should be used too'
632	stop
633	endif
634
635	! if callthermos is used, then thermoswater should be used too
636	! (if water not used already)
637
638	if (callthermos .and. .not.water) then
639	if (callthermos .and. .not.thermoswater) then
640	print*,'if callthermos is used, water or thermoswater
641	& should be used too'
642	stop
643	endif
644	endif
645
646	PRINT*,'--------------------------------------------'
647	PRINT*
648	PRINT*
649	ELSE
650	write(,)
651	write(,) 'Cannot read file callphys.def. Is it here ?'
652	stop
653	ENDIF
654
655	8000 FORMAT(t5,a12,l8)
656	8001 FORMAT(t5,a12,i8)
657
658	PRINT*
659	PRINT*,'inifis: daysec',daysec
660	PRINT*
661	PRINT*,'inifis: The radiative transfer is computed:'
662	PRINT*,' each ',iradia,' physical time-step'
663	PRINT,' or each ',iradiadtphys,' seconds'
664	PRINT*
665	! --------------------------------------------------------------
666	! Managing the Longwave radiative transfer
667	! --------------------------------------------------------------
668
669	! In most cases, the run just use the following values :
670	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
671	callemis=.true.
672	! ilwd=10*int(daysec/dtphys) ! bug before 22/10/01
673	ilwd=1
674	ilwn=1 !2
675	ilwb=1 !2
676	linear=.true.
677	ncouche=3
678	alphan=0.4
679	semi=0
680
681	! BUT people working hard on the LW may want to read them in 'radia.def'
682	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
683
684	OPEN(99,file='radia.def',status='old',form='formatted'
685	. ,iostat=ierr)
686	IF(ierr.EQ.0) THEN
687	write(,) 'inifis: Reading radia.def !!!'
688	READ(99,fmt='(a)') ch1
689	READ(99,*) callemis
690	WRITE(*,8000) ch1,callemis
691
692	READ(99,fmt='(a)') ch1
693	READ(99,*) iradia
694	WRITE(*,8001) ch1,iradia
695
696	READ(99,fmt='(a)') ch1
697	READ(99,*) ilwd
698	WRITE(*,8001) ch1,ilwd
699
700	READ(99,fmt='(a)') ch1
701	READ(99,*) ilwn
702	WRITE(*,8001) ch1,ilwn
703
704	READ(99,fmt='(a)') ch1
705	READ(99,*) linear
706	WRITE(*,8000) ch1,linear
707
708	READ(99,fmt='(a)') ch1
709	READ(99,*) ncouche
710	WRITE(*,8001) ch1,ncouche
711
712	READ(99,fmt='(a)') ch1
713	READ(99,*) alphan
714	WRITE(,) ch1,alphan
715
716	READ(99,fmt='(a)') ch1
717	READ(99,*) ilwb
718	WRITE(*,8001) ch1,ilwb
719
720
721	READ(99,fmt='(a)') ch1
722	READ(99,'(l1)') callg2d
723	WRITE(*,8000) ch1,callg2d
724
725	READ(99,fmt='(a)') ch1
726	READ(99,*) semi
727	WRITE(,) ch1,semi
728	end if
729	CLOSE(99)
730
731	!-----------------------------------------------------------------------
732	! Some more initialization:
733	! ------------------------
734
735	! in 'comgeomfi.h'
736	CALL SCOPY(ngrid,plon,1,long,1)
737	CALL SCOPY(ngrid,plat,1,lati,1)
738	CALL SCOPY(ngrid,parea,1,area,1)
739	totarea=SSUM(ngridmx,area,1)
740
741	! in 'comdiurn.h'
742	DO ig=1,ngrid
743	sinlat(ig)=sin(plat(ig))
744	coslat(ig)=cos(plat(ig))
745	sinlon(ig)=sin(plon(ig))
746	coslon(ig)=cos(plon(ig))
747	ENDDO
748
749	pi=2.*asin(1.) ! NB: pi is a common in comcstfi.h
750
751	! managing the tracers, and tests:
752	! -------------------------------
753	! Ehouarn: removed; as these tests are now done in initracer.F
754	! if(tracer) then
755	!
756	!! when photochem is used, nqchem_min is the rank
757	!! of the first chemical species
758	!
759	!! Ehouarn: nqchem_min is now meaningless and no longer used
760	!! nqchem_min = 1
761	! if (photochem .or. callthermos) then
762	! chem = .true.
763	! end if
764	!
765	! if (water .or. thermoswater) h2o = .true.
766	!
767	!! TESTS
768	!
769	! print*,'inifis: TRACERS:'
770	! write(,) " chem=",chem," h2o=",h2o
771	!! write(,) " doubleq=",doubleq
772	!! write(,) " dustbin=",dustbin
773	!
774	! if ((doubleq).and.(h2o).and.
775	! $ (chem)) then
776	! print*,' 2 dust tracers (doubleq)'
777	! print*,' 1 water vapour tracer'
778	! print*,' 1 water ice tracer'
779	! print*,nqmx-4,' chemistry tracers'
780	! endif
781	!
782	! if ((doubleq).and.(h2o).and.
783	! $ .not.(chem)) then
784	! print*,' 2 dust tracers (doubleq)'
785	! print*,' 1 water vapour tracer'
786	! print*,' 1 water ice tracer'
787	! if (nqmx.LT.4) then
788	! print*,'nqmx should be at least equal to'
789	! print*,'4 with these options.'
790	! stop
791	! endif
792	! endif
793	!
794	! if (.not.(doubleq).and.(h2o).and.
795	! $ (chem)) then
796	! if (dustbin.gt.0) then
797	! print*,dustbin,' dust bins'
798	! endif
799	! print*,nqmx-2-dustbin,' chemistry tracers'
800	! print*,' 1 water vapour tracer'
801	! print*,' 1 water ice tracer'
802	! endif
803	!
804	! if (.not.(doubleq).and.(h2o).and.
805	! $ .not.(chem)) then
806	! if (dustbin.gt.0) then
807	! print*,dustbin,' dust bins'
808	! endif
809	! print*,' 1 water vapour tracer'
810	! print*,' 1 water ice tracer'
811	! if (nqmx.gt.(dustbin+2)) then
812	! print*,'nqmx should be ',(dustbin+2),
813	! $ ' with these options...'
814	! print*,'(or check callphys.def)'
815	! endif
816	! if (nqmx.lt.(dustbin+2)) then
817	! write(,) "inifis: nqmx.lt.(dustbin+2)"
818	! stop
819	! endif
820	! endif
821	!
822	! endif ! of if (tracer)
823	!
824	! RETURN
825	END

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