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initracer.F @ 2417

Last change on this file since 2417 was 2409, checked in by emillour, 5 years ago
Mars GCM: Code tidying : make a "dust_param_mod" module to store dust cycle relevant flags and variables (and remove them from callkeys.h) EM
File size: 31.6 KB

Rev	Line
[1224]	1	SUBROUTINE initracer(ngrid,nq,qsurf)
[38]	2
[1036]	3	use tracer_mod
[2321]	4	use comcstfi_h, only: pi
[2409]	5	use dust_param_mod, only: doubleq, submicron, dustbin
[38]	6	IMPLICIT NONE
	7	c=======================================================================
	8	c subject:
	9	c --------
	10	c Initialization related to tracer
	11	c (transported dust, water, chemical species, ice...)
	12	c
	13	c Name of the tracer
	14	c
	15	c Test of dimension :
[1036]	16	c Initialize tracer related data in tracer_mod, using tracer names provided
	17	c by the dynamics in "infotrac"
[38]	18	c
	19	c
	20	c author: F.Forget
	21	c ------
	22	c Modifs: Franck Montmessin, Sebastien Lebonnois (june 2003)
	23	c Ehouarn Millour (oct. 2008) identify tracers by their names
	24	c=======================================================================
	25
	26
[1974]	27	include "callkeys.h"
[38]	28
[1036]	29	integer,intent(in) :: ngrid ! number of atmospheric columns
	30	integer,intent(in) :: nq ! number of tracers
	31	real,intent(out) :: qsurf(ngrid,nq) ! tracer on surface (e.g. kg.m-2)
	32
[283]	33	integer iq,ig,count
[38]	34	real r0_lift , reff_lift, nueff_lift
[1974]	35	real r0_storm,reff_storm
[38]	36	c Ratio of small over large dust particles (used when both
	37	c doubleq and the submicron mode are active); In Montmessin
	38	c et al. (2002), a value of 25 has been deduced;
	39	real, parameter :: popratio = 25.
[1974]	40	character(len=30) :: txt ! to store some text
[38]	41
	42	c-----------------------------------------------------------------------
[1036]	43	c radius(nq) ! aerosol particle radius (m)
	44	c rho_q(nq) ! tracer densities (kg.m-3)
	45	c alpha_lift(nq) ! saltation vertical flux/horiz flux ratio (m-1)
	46	c alpha_devil(nq) ! lifting coeeficient by dust devil
[38]	47	c rho_dust ! Mars dust density
	48	c rho_ice ! Water ice density
	49	c nuice_ref ! Effective variance nueff of the
	50	c ! water-ice size distributions
	51	c doubleq ! if method with mass (iq=1) and number(iq=2) mixing ratio
	52	c varian ! Characteristic variance of log-normal distribution
	53	c-----------------------------------------------------------------------
	54
[1036]	55
[38]	56	c------------------------------------------------------------
	57	c NAME and molar mass of the tracer
	58	c------------------------------------------------------------
	59
	60	! Identify tracers by their names: (and set corresponding values of mmol)
	61	! 0. initialize tracer indexes to zero:
[1036]	62	igcm_dustbin(1:nq)=0
[1617]	63	igcm_co2_ice=0
	64	igcm_ccnco2_mass=0
	65	igcm_ccnco2_number=0
[38]	66	igcm_dust_mass=0
	67	igcm_dust_number=0
[358]	68	igcm_ccn_mass=0
	69	igcm_ccn_number=0
[38]	70	igcm_dust_submicron=0
	71	igcm_h2o_vap=0
	72	igcm_h2o_ice=0
[2312]	73	igcm_hdo_vap=0
	74	igcm_hdo_ice=0
[1974]	75	igcm_stormdust_mass=0
	76	igcm_stormdust_number=0
[2199]	77	igcm_topdust_mass=0
	78	igcm_topdust_number=0
[38]	79	igcm_co2=0
	80	igcm_co=0
	81	igcm_o=0
	82	igcm_o1d=0
	83	igcm_o2=0
	84	igcm_o3=0
	85	igcm_h=0
	86	igcm_h2=0
	87	igcm_oh=0
	88	igcm_ho2=0
	89	igcm_h2o2=0
[459]	90	igcm_ch4=0
[38]	91	igcm_n2=0
	92	igcm_ar=0
	93	igcm_ar_n2=0
[171]	94	igcm_n=0
	95	igcm_no=0
	96	igcm_no2=0
	97	igcm_n2d=0
[1660]	98	igcm_he=0
[171]	99	igcm_co2plus=0
	100	igcm_oplus=0
	101	igcm_o2plus=0
	102	igcm_coplus=0
	103	igcm_cplus=0
	104	igcm_nplus=0
	105	igcm_noplus=0
	106	igcm_n2plus=0
	107	igcm_hplus=0
[635]	108	igcm_hco2plus=0
[2284]	109	igcm_hcoplus=0
[2302]	110	igcm_h2oplus=0
[2321]	111	igcm_h3oplus=0
	112	igcm_ohplus=0
[171]	113	igcm_elec=0
[38]	114
	115	! 1. find dust tracers
	116	count=0
	117	if (dustbin.gt.0) then
[1036]	118	do iq=1,nq
[38]	119	txt=" "
	120	write(txt,'(a4,i2.2)')'dust',count+1
	121	if (noms(iq).eq.txt) then
	122	count=count+1
	123	igcm_dustbin(count)=iq
	124	mmol(iq)=100.
	125	endif
[1036]	126	enddo !do iq=1,nq
[38]	127	endif ! of if (dustbin.gt.0)
	128	if (doubleq) then
[1036]	129	do iq=1,nq
[38]	130	if (noms(iq).eq."dust_mass") then
	131	igcm_dust_mass=iq
	132	count=count+1
	133	endif
	134	if (noms(iq).eq."dust_number") then
	135	igcm_dust_number=iq
	136	count=count+1
	137	endif
	138	enddo
	139	endif ! of if (doubleq)
[740]	140	if (microphys) then
[1036]	141	do iq=1,nq
[358]	142	if (noms(iq).eq."ccn_mass") then
	143	igcm_ccn_mass=iq
	144	count=count+1
	145	endif
	146	if (noms(iq).eq."ccn_number") then
	147	igcm_ccn_number=iq
	148	count=count+1
	149	endif
	150	enddo
[740]	151	endif ! of if (microphys)
[38]	152	if (submicron) then
[1036]	153	do iq=1,nq
[38]	154	if (noms(iq).eq."dust_submicron") then
	155	igcm_dust_submicron=iq
	156	mmol(iq)=100.
	157	count=count+1
	158	endif
	159	enddo
	160	endif ! of if (submicron)
[1974]	161	if (rdstorm) then
	162	do iq=1,nq
	163	if (noms(iq).eq."stormdust_mass") then
	164	igcm_stormdust_mass=iq
	165	count=count+1
	166	endif
	167	if (noms(iq).eq."stormdust_number") then
	168	igcm_stormdust_number=iq
	169	count=count+1
	170	endif
	171	enddo
[2199]	172	endif ! of if (rdstorm)
	173	if (slpwind) then
	174	do iq=1,nq
	175	if (noms(iq).eq."topdust_mass") then
	176	igcm_topdust_mass=iq
	177	count=count+1
	178	endif
	179	if (noms(iq).eq."topdust_number") then
	180	igcm_topdust_number=iq
	181	count=count+1
	182	endif
	183	enddo
	184	endif ! of if (slpwind)
[38]	185	! 2. find chemistry and water tracers
[1036]	186	do iq=1,nq
[38]	187	if (noms(iq).eq."co2") then
	188	igcm_co2=iq
	189	mmol(igcm_co2)=44.
	190	count=count+1
	191	endif
	192	if (noms(iq).eq."co") then
	193	igcm_co=iq
	194	mmol(igcm_co)=28.
	195	count=count+1
	196	endif
	197	if (noms(iq).eq."o") then
	198	igcm_o=iq
	199	mmol(igcm_o)=16.
	200	count=count+1
	201	endif
	202	if (noms(iq).eq."o1d") then
	203	igcm_o1d=iq
	204	mmol(igcm_o1d)=16.
	205	count=count+1
	206	endif
	207	if (noms(iq).eq."o2") then
	208	igcm_o2=iq
	209	mmol(igcm_o2)=32.
	210	count=count+1
	211	endif
	212	if (noms(iq).eq."o3") then
	213	igcm_o3=iq
	214	mmol(igcm_o3)=48.
	215	count=count+1
	216	endif
	217	if (noms(iq).eq."h") then
	218	igcm_h=iq
	219	mmol(igcm_h)=1.
	220	count=count+1
	221	endif
	222	if (noms(iq).eq."h2") then
	223	igcm_h2=iq
	224	mmol(igcm_h2)=2.
	225	count=count+1
	226	endif
	227	if (noms(iq).eq."oh") then
	228	igcm_oh=iq
	229	mmol(igcm_oh)=17.
	230	count=count+1
	231	endif
	232	if (noms(iq).eq."ho2") then
	233	igcm_ho2=iq
	234	mmol(igcm_ho2)=33.
	235	count=count+1
	236	endif
	237	if (noms(iq).eq."h2o2") then
	238	igcm_h2o2=iq
	239	mmol(igcm_h2o2)=34.
	240	count=count+1
	241	endif
	242	if (noms(iq).eq."n2") then
	243	igcm_n2=iq
	244	mmol(igcm_n2)=28.
	245	count=count+1
	246	endif
[324]	247	if (noms(iq).eq."ch4") then
	248	igcm_ch4=iq
	249	mmol(igcm_ch4)=16.
	250	count=count+1
	251	endif
[38]	252	if (noms(iq).eq."ar") then
	253	igcm_ar=iq
	254	mmol(igcm_ar)=40.
	255	count=count+1
	256	endif
[324]	257	if (noms(iq).eq."n") then
[171]	258	igcm_n=iq
	259	mmol(igcm_n)=14.
	260	count=count+1
	261	endif
	262	if (noms(iq).eq."no") then
	263	igcm_no=iq
	264	mmol(igcm_no)=30.
	265	count=count+1
	266	endif
	267	if (noms(iq).eq."no2") then
	268	igcm_no2=iq
	269	mmol(igcm_no2)=46.
	270	count=count+1
	271	endif
	272	if (noms(iq).eq."n2d") then
	273	igcm_n2d=iq
	274	mmol(igcm_n2d)=28.
	275	count=count+1
	276	endif
[1660]	277	if (noms(iq).eq."he") then
	278	igcm_he=iq
	279	mmol(igcm_he)=4.
	280	count=count+1
	281	endif
[171]	282	if (noms(iq).eq."co2plus") then
	283	igcm_co2plus=iq
	284	mmol(igcm_co2plus)=44.
	285	count=count+1
	286	endif
	287	if (noms(iq).eq."oplus") then
	288	igcm_oplus=iq
	289	mmol(igcm_oplus)=16.
	290	count=count+1
	291	endif
	292	if (noms(iq).eq."o2plus") then
	293	igcm_o2plus=iq
	294	mmol(igcm_o2plus)=32.
	295	count=count+1
	296	endif
	297	if (noms(iq).eq."coplus") then
	298	igcm_coplus=iq
	299	mmol(igcm_coplus)=28.
	300	count=count+1
	301	endif
	302	if (noms(iq).eq."cplus") then
	303	igcm_cplus=iq
	304	mmol(igcm_cplus)=12.
	305	count=count+1
	306	endif
	307	if (noms(iq).eq."nplus") then
	308	igcm_nplus=iq
	309	mmol(igcm_nplus)=14.
	310	count=count+1
	311	endif
	312	if (noms(iq).eq."noplus") then
	313	igcm_noplus=iq
	314	mmol(igcm_noplus)=30.
	315	count=count+1
	316	endif
[324]	317	if (noms(iq).eq."n2plus") then
[171]	318	igcm_n2plus=iq
	319	mmol(igcm_n2plus)=28.
	320	count=count+1
	321	endif
	322	if (noms(iq).eq."hplus") then
	323	igcm_hplus=iq
	324	mmol(igcm_hplus)=1.
	325	count=count+1
	326	endif
[635]	327	if (noms(iq).eq."hco2plus") then
	328	igcm_hco2plus=iq
	329	mmol(igcm_hco2plus)=45.
	330	count=count+1
	331	endif
[2284]	332	if (noms(iq).eq."hcoplus") then
	333	igcm_hcoplus=iq
	334	mmol(igcm_hcoplus)=29.
	335	count=count+1
	336	endif
[2302]	337	if (noms(iq).eq."h2oplus") then
	338	igcm_h2oplus=iq
	339	mmol(igcm_h2oplus)=18.
	340	count=count+1
	341	endif
[2321]	342	if (noms(iq).eq."h3oplus") then
	343	igcm_h3oplus=iq
	344	mmol(igcm_h3oplus)=19.
	345	count=count+1
	346	endif
	347	if (noms(iq).eq."ohplus") then
	348	igcm_ohplus=iq
	349	mmol(igcm_ohplus)=17.
	350	count=count+1
	351	endif
[171]	352	if (noms(iq).eq."elec") then
	353	igcm_elec=iq
	354	mmol(igcm_elec)=1./1822.89
	355	count=count+1
	356	endif
[38]	357	if (noms(iq).eq."h2o_vap") then
	358	igcm_h2o_vap=iq
	359	mmol(igcm_h2o_vap)=18.
	360	count=count+1
	361	endif
[2312]	362	if (noms(iq).eq."hdo_vap") then
	363	igcm_hdo_vap=iq
	364	mmol(igcm_hdo_vap)=18. !19
	365	count=count+1
	366	endif
[1617]	367	if (noms(iq).eq."co2_ice") then
	368	igcm_co2_ice=iq
	369	mmol(igcm_co2_ice)=44.
	370	count=count+1
	371	endif
[38]	372	if (noms(iq).eq."h2o_ice") then
	373	igcm_h2o_ice=iq
	374	mmol(igcm_h2o_ice)=18.
	375	count=count+1
	376	endif
[2312]	377	if (noms(iq).eq."hdo_ice") then
	378	igcm_hdo_ice=iq
	379	mmol(igcm_hdo_ice)=18. !19
	380	count=count+1
	381	endif
[38]	382	! Other stuff: e.g. for simulations using co2 + neutral gaz
	383	if (noms(iq).eq."Ar_N2") then
	384	igcm_ar_n2=iq
	385	mmol(igcm_ar_n2)=30.
	386	count=count+1
	387	endif
[1720]	388	if (co2clouds) then
[1617]	389	if (noms(iq).eq."ccnco2_mass") then
	390	igcm_ccnco2_mass=iq
	391	count=count+1
	392	endif
	393	if (noms(iq).eq."ccnco2_number") then
	394	igcm_ccnco2_number=iq
	395	count=count+1
	396	endif
	397	endif
	398	enddo ! of do iq=1,nq
	399
[38]	400	! check that we identified all tracers:
[1036]	401	if (count.ne.nq) then
[38]	402	write(,) "initracer: found only ",count," tracers"
[1036]	403	write(,) " expected ",nq
[38]	404	do iq=1,count
	405	write(,)' ',iq,' ',trim(noms(iq))
	406	enddo
[2302]	407	call abort_physic("initracer","tracer mismatch",1)
[38]	408	else
	409	write(,) "initracer: found all expected tracers, namely:"
[1036]	410	do iq=1,nq
[38]	411	write(,)' ',iq,' ',trim(noms(iq))
	412	enddo
	413	endif
	414
	415	! if water cycle but iceparty=.false., there will nevertheless be
	416	! water ice at the surface (iceparty is not used anymore, but this
	417	! part is still relevant, as we want to stay compatible with the
	418	! older versions).
	419	if (water.and.(igcm_h2o_ice.eq.0)) then
	420	igcm_h2o_ice=igcm_h2o_vap ! so that qsurf(i_h2o_ice) is identified
	421	! even though there is no q(i_h2o_ice)
	422	else
	423	! surface ice qsurf(i_h2o_ice) was loaded twice by phyetat0,
	424	! as qsurf(i_h2o_vap) & as qsurf(i_h2o_ice), so to be clean:
	425	if (igcm_h2o_vap.ne.0) then
[1036]	426	qsurf(1:ngrid,igcm_h2o_vap)=0
[38]	427	endif
	428	endif
	429
[2312]	430	! Additional test required for HDO
	431	! We need to compute some things for H2O before HDO
	432	if (hdo) then
	433	if (igcm_h2o_vap.gt.igcm_hdo_vap) then
[2398]	434	call abort_physic("initracer",
	435	& "Tracer H2O must be initialized before HDO",1)
[2324]	436	else if ((nqfils(igcm_h2o_ice).lt.1)
	437	& .or. (nqfils(igcm_h2o_vap).lt.1)) then
	438	write(,) "HDO must be transported as a son",
	439	& " of H2O: complete traceur.def"
[2398]	440	call abort_physic("initracer","adapt your tracer.def",1)
[2324]	441	else if ((igcm_hdo_ice.lt.nq-2)
	442	& .or. (igcm_hdo_vap.lt.nq-2)) then
	443	write(,) "The isotopes (HDO) must be placed at",
	444	& " the end of the list in traceur.def"
[2398]	445	call abort_physic("initracer","adapt your tracer.def",1)
[2312]	446	endif
	447	endif
	448
[38]	449	c------------------------------------------------------------
[1036]	450	c Initialize tracers .... (in tracer_mod)
[38]	451	c------------------------------------------------------------
[1005]	452	! start by setting everything to (default) zero
[1036]	453	rho_q(1:nq)=0 ! tracer density (kg.m-3)
	454	radius(1:nq)=0. ! tracer particle radius (m)
	455	alpha_lift(1:nq) =0. ! tracer saltation vertical flux/horiz flux ratio (m-1)
	456	alpha_devil(1:nq)=0. ! tracer lifting coefficient by dust devils
[38]	457
[1005]	458
	459	! some reference values
[38]	460	rho_dust=2500. ! Mars dust density (kg.m-3)
	461	rho_ice=920. ! Water ice density (kg.m-3)
[1685]	462	rho_ice_co2=1650.
	463	!Mangan et al., Icarus 2017 :CO2 density = 1.72391-2.53×10−4T – 2.87×10−6T^2
[38]	464	nuice_ref=0.1 ! Effective variance nueff of the
[358]	465	! water-ice size distribution
[455]	466	!!!nuice_sed=0.45 ! Sedimentation effective variance
[358]	467	! of the water-ice size distribution
[38]	468
	469	if (doubleq) then
	470	c "doubleq" technique
	471	c -------------------
	472	c (transport of mass and number mixing ratio)
	473	c iq=1: Q mass mixing ratio, iq=2: N number mixing ratio
	474
[2312]	475	if( (nq.lt.2).or.(water.and.(nq.lt.4))
	476	* .or.(hdo.and.(nq.lt.6) )) then
[1036]	477	write(,)'initracer: nq is too low : nq=', nq
[38]	478	write(,)'water= ',water,' doubleq= ',doubleq
	479	end if
	480
	481	nueff_lift = 0.5
	482	varian=sqrt(log(1.+nueff_lift))
	483
	484	rho_q(igcm_dust_mass)=rho_dust
	485	rho_q(igcm_dust_number)=rho_dust
	486
	487	c Intermediate calcul for computing geometric mean radius r0
	488	c as a function of mass and number mixing ratio Q and N
	489	c (r0 = (r3n_q * Q/ N)^(1/3))
	490	r3n_q = exp(-4.5varian2)(3./4.)/(pi*rho_dust)
	491
	492	c Intermediate calcul for computing effective radius reff
	493	c from geometric mean radius r0
	494	c (reff = ref_r0 * r0)
	495	ref_r0 = exp(2.5varian*2)
	496
	497	c lifted dust :
	498	c '''''''''''
	499	reff_lift = 3.0e-6 !3.e-6 !Effective radius of lifted dust (m)
	500	alpha_devil(igcm_dust_mass)=9.e-9 ! dust devil lift mass coeff
	501	c alpha_lift(igcm_dust_mass)=3.0e-15 ! Lifted mass coeff
[1455]	502
	503	!! default lifting settings
	504	!! -- GCM: alpha_lift not zero because large-scale lifting by default
	505	!! -- MESOSCALE: alpha_lift zero because no lifting at all in mesoscale by default
	506	#ifdef MESOSCALE
	507	alpha_lift(igcm_dust_mass)=0.0
	508	#else
[38]	509	alpha_lift(igcm_dust_mass)=1.e-6 !1.e-6 !Lifted mass coeff
[1974]	510	IF (dustinjection.ge.1) THEN
	511	reff_lift = 3.0e-6 ! Effective radius of lifted dust (m)
	512	alpha_lift(igcm_dust_mass)=(4/3.)reff_liftrho_dust
	513	& /2.4
	514	ENDIF
[1455]	515	#endif
[38]	516
	517	r0_lift = reff_lift/ref_r0
	518	alpha_devil(igcm_dust_number)=r3n_q*
	519	& alpha_devil(igcm_dust_mass)/r0_lift**3
	520	alpha_lift(igcm_dust_number)=r3n_q*
	521	& alpha_lift(igcm_dust_mass)/r0_lift**3
	522
	523	radius(igcm_dust_mass) = reff_lift
	524	radius(igcm_dust_number) = reff_lift
	525
	526	write(,) "initracer: doubleq_param reff_lift:", reff_lift
	527	write(,) "initracer: doubleq_param nueff_lift:", nueff_lift
	528	write(,) "initracer: doubleq_param alpha_lift:",
	529	& alpha_lift(igcm_dust_mass)
[1974]	530	!c ----------------------------------------------------------------------
	531	!c rocket dust storm scheme
	532	!c lifting tracer stormdust using same distribution than
	533	!c normal dust
	534	if (rdstorm) then
	535	reff_storm=3.e-6 ! reff_lift !3.e-6
	536	r0_storm=reff_storm/ref_r0
	537	rho_q(igcm_stormdust_mass)=rho_dust
	538	rho_q(igcm_stormdust_number)=rho_dust
	539
	540	alpha_devil(igcm_stormdust_mass)=9.e-9 ! dust devil lift mass coeff
	541	alpha_lift(igcm_stormdust_mass)=4./3./2.4reff_stormrho_dust
	542
	543	write(,) 'alpha_lift(rds):',alpha_lift(igcm_stormdust_mass)
	544
	545	alpha_devil(igcm_stormdust_number)=r3n_q*
	546	& alpha_devil(igcm_stormdust_mass)/r0_storm**3
	547	alpha_lift(igcm_stormdust_number)=r3n_q*
	548	& alpha_lift(igcm_stormdust_mass)/r0_storm**3
	549
	550	radius(igcm_stormdust_mass) = reff_storm
	551	radius(igcm_stormdust_number) = reff_storm
	552	end if !(rdstorm)
	553	!c ----------------------------------------------------------------------
[2199]	554	!c slope wind scheme
	555	!c you need a radius value for topdust to active its sedimentation
	556	!c we take the same value as for the normal dust
	557	if (slpwind) then
	558	rho_q(igcm_topdust_mass)=rho_dust
	559	rho_q(igcm_topdust_number)=rho_dust
	560	radius(igcm_topdust_mass) = 3.e-6
	561	radius(igcm_topdust_number) = 3.e-6
	562	end if !(slpwind)
	563	!c ----------------------------------------------------------------------
[1974]	564
[38]	565	else
	566
[648]	567	! initialize varian, which may be used (e.g. by surfacearea)
	568	! even with conrath dust
	569	nueff_lift = 0.5
	570	varian=sqrt(log(1.+nueff_lift))
	571
[38]	572	if (dustbin.gt.1) then
	573	print*,'initracer: STOP!',
	574	$ ' properties of dust need to be set in initracer !!!'
[2302]	575	call abort_physic("initracer","dustbin properties issue",1)
[38]	576
	577	else if (dustbin.eq.1) then
	578
	579	c This will be used for 1 dust particle size:
	580	c ------------------------------------------
	581	radius(igcm_dustbin(1))=3.e-6
	582	alpha_lift(igcm_dustbin(1))=0.0e-6
	583	alpha_devil(igcm_dustbin(1))=7.65e-9
	584	rho_q(igcm_dustbin(1))=rho_dust
	585
	586	endif
	587	end if ! (doubleq)
	588
[358]	589
	590	c Scavenging of dust particles by H2O clouds:
	591	c ------------------------------------------
	592	c Initialize the two tracers used for the CCNs
	593	if (water.AND.doubleq.AND.scavenging) then
	594	radius(igcm_ccn_mass) = radius(igcm_dust_mass)
	595	alpha_lift(igcm_ccn_mass) = 1e-30
	596	alpha_devil(igcm_ccn_mass) = 1e-30
	597	rho_q(igcm_ccn_mass) = rho_dust
	598
	599	radius(igcm_ccn_number) = radius(igcm_ccn_mass)
	600	alpha_lift(igcm_ccn_number) = alpha_lift(igcm_ccn_mass)
	601	alpha_devil(igcm_ccn_number) = alpha_devil(igcm_ccn_mass)
	602	rho_q(igcm_ccn_number) = rho_q(igcm_ccn_mass)
	603	endif ! of if (water.AND.doubleq.AND.scavenging)
	604
[38]	605	c Submicron dust mode:
	606	c --------------------
	607
	608	if (submicron) then
	609	radius(igcm_dust_submicron)=0.1e-6
	610	rho_q(igcm_dust_submicron)=rho_dust
	611	if (doubleq) then
	612	c If doubleq is also active, we use the population ratio:
	613	alpha_lift(igcm_dust_submicron) =
	614	& alpha_lift(igcm_dust_number)popratio
	615	& rho_q(igcm_dust_submicron)4./3.pi*
	616	& radius(igcm_dust_submicron)**3.
	617	alpha_devil(igcm_dust_submicron)=1.e-30
	618	else
	619	alpha_lift(igcm_dust_submicron)=1e-6
	620	alpha_devil(igcm_dust_submicron)=1.e-30
	621	endif ! (doubleq)
	622	end if ! (submicron)
	623
	624	c Initialization for water vapor
	625	c ------------------------------
	626	if(water) then
	627	radius(igcm_h2o_vap)=0.
	628	alpha_lift(igcm_h2o_vap) =0.
	629	alpha_devil(igcm_h2o_vap)=0.
[1036]	630	if(water.and.(nq.ge.2)) then
[38]	631	radius(igcm_h2o_ice)=3.e-6
	632	rho_q(igcm_h2o_ice)=rho_ice
	633	alpha_lift(igcm_h2o_ice) =0.
	634	alpha_devil(igcm_h2o_ice)=0.
[1036]	635	elseif(water.and.(nq.lt.2)) then
	636	write(,) 'nq is too low : nq=', nq
[38]	637	write(,) 'water= ',water
	638	endif
	639
	640	end if ! (water)
[2312]	641
	642	c Initialization for hdo vapor
	643	c ------------------------------
	644	if (hdo) then
	645	radius(igcm_hdo_vap)=0.
	646	alpha_lift(igcm_hdo_vap) =0.
	647	alpha_devil(igcm_hdo_vap)=0.
	648	if(water.and.(nq.ge.2)) then
	649	radius(igcm_hdo_ice)=3.e-6
	650	rho_q(igcm_hdo_ice)=rho_ice
	651	alpha_lift(igcm_hdo_ice) =0.
	652	alpha_devil(igcm_hdo_ice)=0.
	653	elseif(hdo.and.(nq.lt.6)) then
	654	write(,) 'nq is too low : nq=', nq
	655	write(,) 'hdo= ',hdo
	656	endif
	657
	658	end if ! (hdo)
	659
[1617]	660
	661	! Initialisation for CO2 clouds
	662	if (co2clouds ) then
	663	radius(igcm_ccnco2_mass) = radius(igcm_dust_mass)
	664	alpha_lift(igcm_ccnco2_mass) = 1e-30
	665	alpha_devil(igcm_ccnco2_mass) = 1e-30
	666	rho_q(igcm_ccnco2_mass) = rho_dust
	667	radius(igcm_ccnco2_number) = radius(igcm_ccnco2_mass)
	668	alpha_lift(igcm_ccnco2_number) = alpha_lift(igcm_ccnco2_mass)
	669	alpha_devil(igcm_ccnco2_number) = alpha_devil(igcm_ccnco2_mass)
	670	rho_q(igcm_ccnco2_number) = rho_q(igcm_ccnco2_mass)
	671
	672	radius(igcm_co2)=0.
	673	alpha_lift(igcm_co2) =0.
	674	alpha_devil(igcm_co2)=0.
[1685]	675	radius(igcm_co2_ice)=1.e-8
[1617]	676	rho_q(igcm_co2_ice)=rho_ice_co2
	677	alpha_lift(igcm_co2_ice) =0.
	678	alpha_devil(igcm_co2_ice)=0.
[38]	679
[1617]	680	endif
	681
[38]	682	c Output for records:
	683	c ~~~~~~~~~~~~~~~~~~
	684	write(,)
	685	Write(,) '******** initracer : dust transport parameters :'
	686	write(,) 'alpha_lift = ', alpha_lift
	687	write(,) 'alpha_devil = ', alpha_devil
	688	write(,) 'radius = ', radius
	689	if(doubleq) then
	690	write(,) 'reff_lift (um) = ', reff_lift
	691	write(,) 'size distribution variance = ', varian
	692	write(,) 'r3n_q , ref_r0 : ', r3n_q , ref_r0
	693	end if
	694
	695	!
	696	! some extra (possibly redundant) sanity checks for tracers:
	697	! ---------------------------------------------------------
	698
	699	if (doubleq) then
	700	! verify that we indeed have dust_mass and dust_number tracers
	701	if (igcm_dust_mass.eq.0) then
	702	write(,) "initracer: error !!"
	703	write(,) " cannot use doubleq option without ",
	704	& "a dust_mass tracer !"
[2302]	705	call abort_physic("initracer","doubleq issue",1)
[38]	706	endif
	707	if (igcm_dust_number.eq.0) then
	708	write(,) "initracer: error !!"
	709	write(,) " cannot use doubleq option without ",
	710	& "a dust_number tracer !"
[2302]	711	call abort_physic("initracer","doubleq issue",1)
[38]	712	endif
	713	endif
	714
	715	if ((.not.doubleq).and.(dustbin.gt.0)) then
	716	! verify that we indeed have 'dustbin' dust tracers
	717	count=0
	718	do iq=1,dustbin
	719	if (igcm_dustbin(iq).ne.0) then
	720	count=count+1
	721	endif
	722	enddo
	723	if (count.ne.dustbin) then
	724	write(,) "initracer: error !!"
[2302]	725	write(,) " dustbin is set to ",dustbin,
[38]	726	& " but we only have the following dust tracers:"
	727	do iq=1,count
	728	write(,)" ",trim(noms(igcm_dustbin(iq)))
	729	enddo
[2302]	730	call abort_physic("initracer","dustbin issue",1)
[38]	731	endif
	732	endif
	733
	734	if (water) then
	735	! verify that we indeed have h2o_vap and h2o_ice tracers
	736	if (igcm_h2o_vap.eq.0) then
	737	write(,) "initracer: error !!"
	738	write(,) " cannot use water option without ",
	739	& "an h2o_vap tracer !"
[2302]	740	call abort_physic("initracer","water cycle issue",1)
[38]	741	endif
	742	if (igcm_h2o_ice.eq.0) then
	743	write(,) "initracer: error !!"
	744	write(,) " cannot use water option without ",
	745	& "an h2o_ice tracer !"
[2302]	746	call abort_physic("initracer","water cycle issue",1)
[38]	747	endif
	748	endif
	749
[2312]	750	if (hdo) then
	751	! verify that we indeed have hdo_vap and hdo_ice tracers
	752	if (igcm_hdo_vap.eq.0) then
	753	write(,) "initracer: error !!"
	754	write(,) " cannot use hdo option without ",
	755	& "an hdo_vap tracer !"
[2398]	756	call abort_physic("initracer","hdo cycle issue",1)
[2312]	757	endif
	758	if (igcm_hdo_ice.eq.0) then
	759	write(,) "initracer: error !!"
	760	write(,) " cannot use hdo option without ",
	761	& "an hdo_ice tracer !"
[2398]	762	call abort_physic("initracer","hdo cycle issue",1)
[2312]	763	endif
	764	endif
	765
	766
[1617]	767	if (co2clouds) then
	768	!verify that we have co2_ice and co2 tracers
	769	if (igcm_co2 .eq. 0) then
	770	write(,) "initracer: error !!"
	771	write(,) " cannot use co2 clouds option without ",
	772	& "a co2 tracer !"
[2302]	773	call abort_physic("initracer","co2 clouds issue",1)
[1617]	774	endif
	775	if (igcm_co2_ice .eq. 0) then
	776	write(,) "initracer: error !!"
	777	write(,) " cannot use co2 clouds option without ",
	778	& "a co2_ice tracer !"
[2302]	779	call abort_physic("initracer","co2 clouds issue",1)
[1617]	780	endif
	781	endif
[1974]	782
	783	if (rdstorm) then
	784	! verify that we indeed have stormdust_mass and stormdust_number tracers
	785	if (igcm_stormdust_mass.eq.0) then
	786	write(,) "initracer: error !!"
	787	write(,) " cannot use rdstorm option without ",
	788	& "a stormdust_mass tracer !"
[2302]	789	call abort_physic("initracer","rdstorm issue",1)
[1974]	790	endif
	791	if (igcm_stormdust_number.eq.0) then
	792	write(,) "initracer: error !!"
	793	write(,) " cannot use rdstorm option without ",
	794	& "a stormdust_number tracer !"
[2302]	795	call abort_physic("initracer","rdstorm issue",1)
[1974]	796	endif
	797	endif
[2199]	798
	799	if (slpwind) then
	800	! verify that we indeed have topdust_mass and topdust_number tracers
	801	if (igcm_topdust_mass.eq.0) then
	802	write(,) "initracer: error !!"
	803	write(,) " cannot use slpwind option without ",
	804	& "a topdust_mass tracer !"
[2302]	805	call abort_physic("initracer","slpwind issue",1)
[2199]	806	endif
	807	if (igcm_topdust_number.eq.0) then
	808	write(,) "initracer: error !!"
	809	write(,) " cannot use slpwind option without ",
	810	& "a topdust_number tracer !"
[2302]	811	call abort_physic("initracer","slpwind issue",1)
[2199]	812	endif
	813	endif
[1974]	814
[1380]	815	if (callnlte) then ! NLTE requirements
	816	if (nltemodel.ge.1) then
	817	! check that co2, co, o and n2 tracers are available
	818	if (igcm_co2.eq.0) then
	819	write(,) "initracer: error !!"
	820	write(,) " with nltemodel>0, we need the co2 tracer!"
[2302]	821	call abort_physic("initracer","missing co2 tracer",1)
[1380]	822	endif
	823	if (igcm_co.eq.0) then
	824	write(,) "initracer: error !!"
	825	write(,) " with nltemodel>0, we need the co tracer!"
[2302]	826	call abort_physic("initracer","missing co tracer",1)
[1380]	827	endif
	828	if (igcm_o.eq.0) then
	829	write(,) "initracer: error !!"
	830	write(,) " with nltemodel>0, we need the o tracer!"
[2302]	831	call abort_physic("initracer","missing o tracer",1)
[1380]	832	endif
	833	if (igcm_n2.eq.0) then
	834	write(,) "initracer: error !!"
	835	write(,) " with nltemodel>0, we need the n2 tracer!"
[2302]	836	call abort_physic("initracer","missing n2 tracer",1)
[1380]	837	endif
	838	endif
	839	endif
	840
[358]	841	if (scavenging) then
	842	! verify that we indeed have ccn_mass and ccn_number tracers
[1617]	843	if (igcm_ccn_mass.eq.0 .and. igcm_ccnco2_mass.eq.0) then
[358]	844	write(,) "initracer: error !!"
	845	write(,) " cannot use scavenging option without ",
[1617]	846	& "a ccn_mass or ccnco2_mass tracer !"
[2302]	847	call abort_physic("initracer","scavenging issue",1)
[358]	848	endif
[1617]	849	if (igcm_ccn_number.eq.0 .and. igcm_ccnco2_number.eq.0 ) then
[358]	850	write(,) "initracer: error !!"
	851	write(,) " cannot use scavenging option without ",
[1617]	852	& "a ccn_number or ccnco2_number tracer !"
[2302]	853	call abort_physic("initracer","scavenging issue",1)
[358]	854	endif
	855	endif ! of if (scavenging)
	856
[38]	857	if (photochem .or. callthermos) then
	858	! verify that we indeed have the chemistry tracers
	859	if (igcm_co2.eq.0) then
	860	write(,) "initracer: error !!"
	861	write(,) " cannot use chemistry option without ",
	862	& "a co2 tracer !"
[2302]	863	call abort_physic("initracer","missing co2 tracer",1)
[38]	864	endif
	865	if (igcm_co.eq.0) then
	866	write(,) "initracer: error !!"
	867	write(,) " cannot use chemistry option without ",
	868	& "a co tracer !"
[2302]	869	call abort_physic("initracer","missing co tracer",1)
[38]	870	endif
	871	if (igcm_o.eq.0) then
	872	write(,) "initracer: error !!"
	873	write(,) " cannot use chemistry option without ",
	874	& "a o tracer !"
[2302]	875	call abort_physic("initracer","missing o tracer",1)
[38]	876	endif
	877	if (igcm_o1d.eq.0) then
	878	write(,) "initracer: error !!"
	879	write(,) " cannot use chemistry option without ",
	880	& "a o1d tracer !"
[2302]	881	call abort_physic("initracer","missing o1d tracer",1)
[38]	882	endif
	883	if (igcm_o2.eq.0) then
	884	write(,) "initracer: error !!"
	885	write(,) " cannot use chemistry option without ",
	886	& "an o2 tracer !"
[2302]	887	call abort_physic("initracer","missing o2 tracer",1)
[38]	888	endif
	889	if (igcm_o3.eq.0) then
	890	write(,) "initracer: error !!"
	891	write(,) " cannot use chemistry option without ",
	892	& "an o3 tracer !"
[2302]	893	call abort_physic("initracer","missing o3 tracer",1)
[38]	894	endif
	895	if (igcm_h.eq.0) then
	896	write(,) "initracer: error !!"
	897	write(,) " cannot use chemistry option without ",
	898	& "a h tracer !"
[2302]	899	call abort_physic("initracer","missing h tracer",1)
[38]	900	endif
	901	if (igcm_h2.eq.0) then
	902	write(,) "initracer: error !!"
	903	write(,) " cannot use chemistry option without ",
	904	& "a h2 tracer !"
[2302]	905	call abort_physic("initracer","missing h2 tracer",1)
[38]	906	endif
	907	if (igcm_oh.eq.0) then
	908	write(,) "initracer: error !!"
	909	write(,) " cannot use chemistry option without ",
	910	& "an oh tracer !"
[2302]	911	call abort_physic("initracer","missing oh tracer",1)
[38]	912	endif
	913	if (igcm_ho2.eq.0) then
	914	write(,) "initracer: error !!"
	915	write(,) " cannot use chemistry option without ",
	916	& "a ho2 tracer !"
[2302]	917	call abort_physic("initracer","missing ho2 tracer",1)
[1720]	918	endif
[38]	919	if (igcm_h2o2.eq.0) then
	920	write(,) "initracer: error !!"
	921	write(,) " cannot use chemistry option without ",
	922	& "a h2o2 tracer !"
[2302]	923	call abort_physic("initracer","missing h2o2 tracer",1)
[38]	924	endif
	925	if (igcm_n2.eq.0) then
	926	write(,) "initracer: error !!"
	927	write(,) " cannot use chemistry option without ",
	928	& "a n2 tracer !"
[2302]	929	call abort_physic("initracer","missing n2 tracer",1)
[38]	930	endif
	931	if (igcm_ar.eq.0) then
	932	write(,) "initracer: error !!"
	933	write(,) " cannot use chemistry option without ",
	934	& "an ar tracer !"
[2302]	935	call abort_physic("initracer","missing ar tracer",1)
[38]	936	endif
	937	endif ! of if (photochem .or. callthermos)
	938
	939	end

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