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improvedco2clouds_mod.F @ 2156

Last change on this file since 2156 was 2156, checked in by aslmd, 5 years ago
changed upper-case CO2 in lower-case co2 to be consistent everywhere. also Fortran is not case-sensitive so using a mix of upper case and lower case is not usually good practice.
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1	MODULE improvedco2clouds_mod
2
3	IMPLICIT NONE
4
5	CONTAINS
6
7	subroutine improvedco2clouds(ngrid,nlay,microtimestep,
8	& pplay,pplev,pteff,sum_subpdt,
9	& pqeff,sum_subpdq,subpdqcloudco2,subpdtcloudco2,
10	& nq,tauscaling,
11	& mem_Mccn_co2,mem_Mh2o_co2,mem_Nccn_co2,
12	& No_dust,Mo_dust)
13	USE comcstfi_h, only: pi, g, cpp
14	USE updaterad, only: updaterice_micro, updaterice_microco2,
15	& updaterccnCO2
16	use tracer_mod, only: igcm_dust_mass, igcm_dust_number, rho_dust,
17	& igcm_h2o_ice, igcm_ccn_mass,
18	& igcm_ccn_number, nuice_sed,
19	& igcm_co2, igcm_co2_ice, igcm_ccnco2_mass,
20	& igcm_ccnco2_number, nuiceco2_sed,
21	& rho_ice_co2,nuiceco2_ref
22	use conc_mod, only: mmean
23	use datafile_mod, only: datadir
24
25	implicit none
26
27	c------------------------------------------------------------------
28	c This routine is used to form CO2 clouds when a parcel of the GCM is
29	c saturated. It includes the ability to have supersaturation, a
30	c computation of the nucleation rates, growthrates and the
31	c scavenging of dust particles by clouds.
32	c It is worth noting that the amount of dust is computed using the
33	c dust optical depth computed in aeropacity.F. That's why
34	c the variable called "tauscaling" is used to convert
35	c pq(dust_mass) and pq(dust_number), which are relative
36	c quantities, to absolute and realistic quantities stored in zq.
37	c This has to be done to convert the inputs into absolute
38	c values, but also to convert the outputs back into relative
39	c values which are then used by the sedimentation and advection
40	c schemes.
41	c CO2 ice particles can nucleate on both dust and on water ice particles
42	c When CO2 ice is deposited onto a water ice particles, the particle is
43	c removed from the water tracers.
44	c Memory of the origin of the co2 particles is kept and thus the
45	c water cycle shouldn't be modified by this.
46	c WARNING: no sedimentation of the water ice origin is performed
47	c in the microphysical timestep in co2cloud.F.
48
49	c Authors of the water ice clouds microphysics
50	c J.-B. Madeleine, based on the work by Franck Montmessin
51	c (October 2011)
52	c T. Navarro, debug,correction, new scheme (October-April 2011)
53	c A. Spiga, optimization (February 2012)
54	c Adaptation for CO2 clouds by Joachim Audouard (09/16), based on the work
55	c of Constantino Listowski
56	c There is an energy limit to how much co2 can sublimate/condensate. It is
57	c defined by the difference of the GCM temperature with the co2 condensation
58	c temperature.
59	c Warning:
60	c If meteoritic particles are activated and turn into co2 ice particles,
61	c then they will be reversed in the dust tracers if the cloud sublimates
62
63	c------------------------------------------------------------------
64	include "callkeys.h"
65	include "microphys.h"
66	c------------------------------------------------------------------
67	c Arguments:
68
69	INTEGER,INTENT(in) :: ngrid,nlay
70	integer,intent(in) :: nq ! number of tracers
71	REAL,INTENT(in) :: microtimestep ! physics time step (s)
72	REAL,INTENT(in) :: pplay(ngrid,nlay) ! mid-layer pressure (Pa)
73	REAL,INTENT(in) :: pplev(ngrid,nlay+1) ! inter-layer pressure (Pa)
74	REAL,INTENT(in) :: pteff(ngrid,nlay) ! temperature at the middle of the
75	! layers (K)
76	REAL,INTENT(in) :: sum_subpdt(ngrid,nlay) ! tendency on temperature from
77	! previous physical parametrizations
78	REAL,INTENT(in) :: pqeff(ngrid,nlay,nq) ! tracers (kg/kg)
79	REAL,INTENT(in) :: sum_subpdq(ngrid,nlay,nq) ! tendencies on tracers
80	! before condensation (kg/kg.s-1)
81	REAL,INTENT(in) :: tauscaling(ngrid) ! Convertion factor for qdust and Ndust
82	c Outputs:
83	REAL,INTENT(out) :: subpdqcloudco2(ngrid,nlay,nq) ! tendency on tracers
84	! due to CO2 condensation (kg/kg.s-1)
85	! condensation si igcm_co2_ice
86	REAL,INTENT(out) :: subpdtcloudco2(ngrid,nlay) ! tendency on temperature due
87	! to latent heat
88	REAL,INTENT(out) :: No_dust(ngrid,nlay)
89	REAL,INTENT(out) :: Mo_dust(ngrid,nlay)
90
91	c------------------------------------------------------------------
92	c Local variables:
93	LOGICAL,SAVE :: firstcall=.true.
94	REAL*8 derf ! Error function
95	INTEGER ig,l,i
96
97	real masse (ngrid,nlay) ! Layer mass (kg.m-2)
98	REAL rice(ngrid,nlay) ! Water Ice mass mean radius (m)
99	! used for nucleation of CO2 on ice-coated ccns
100	REAL rccnh2o(ngrid,nlay) ! Water Ice mass mean radius (m)
101	REAL zq(ngrid,nlay,nq) ! local value of tracers
102	REAL zq0(ngrid,nlay,nq) ! local initial value of tracers
103	REAL zt(ngrid,nlay) ! local value of temperature
104	REAL zqsat(ngrid,nlay) ! saturation vapor pressure for CO2
105	real tcond(ngrid,nlay)
106	real zqco2(ngrid,nlay)
107	REAL lw !Latent heat of sublimation (J.kg-1)
108	REAL,save :: l0,l1,l2,l3,l4
109	DOUBLE PRECISION dMice ! mass of condensed ice
110	DOUBLE PRECISION sumcheck
111	DOUBLE PRECISION facteurmax!for energy limit on mass growth
112	DOUBLE PRECISION pco2,psat ! Co2 vapor partial pressure (Pa)
113	DOUBLE PRECISION satu ! Co2 vapor saturation ratio over ice
114	DOUBLE PRECISION Mo ,No
115
116	c D.BARDET: sensibility test
117	c REAL, SAVE :: No ! when sensibility test
118	c DOUBLE PRECISION No_dust(ngrid,nlay) ! when sensibility test
119	c DOUBLE PRECISION Mo_dust(ngrid,nlay) ! when sensibility test
120
121	DOUBLE PRECISION Rn, Rm, dev2,dev3, n_derf, m_derf
122	DOUBLE PRECISION mem_Mccn_co2(ngrid,nlay) ! Memory of CCN mass of H2O and dust used by CO2
123	DOUBLE PRECISION mem_Mh2o_co2(ngrid,nlay) ! Memory of H2O mass integred into CO2 crystal
124	DOUBLE PRECISION mem_Nccn_co2(ngrid,nlay) ! Memory of CCN number of H2O and dust used by CO2
125	DOUBLE PRECISION interm1,interm2,interm3
126
127	! Radius used by the microphysical scheme (m)
128	DOUBLE PRECISION n_aer(nbinco2_cld) ! number concentration volume-1 of particle/each size bin
129	DOUBLE PRECISION m_aer(nbinco2_cld) ! mass mixing ratio of particle/each size bin
130	DOUBLE PRECISION m_aer_h2oice2(nbinco2_cld) ! mass mixing ratio of particle/each size bin
131
132	DOUBLE PRECISION n_aer_h2oice(nbinco2_cld) ! Same - for CO2 nucleation
133	DOUBLE PRECISION m_aer_h2oice(nbinco2_cld) ! Same - for CO2 nucleation
134	DOUBLE PRECISION rad_h2oice(nbinco2_cld)
135
136	c REAL*8 sigco2 ! Co2-ice/air surface tension (N.m)
137	c EXTERNAL sigco2
138
139	DOUBLE PRECISION dN,dM, dNh2o, dMh2o, dNN,dMM,dNNh2o,dMMh2o
140	DOUBLE PRECISION dMh2o_ice,dMh2o_ccn
141
142	DOUBLE PRECISION rate(nbinco2_cld) ! nucleation rate
143	DOUBLE PRECISION rateh2o(nbinco2_cld) ! nucleation rate
144	REAL seq
145	DOUBLE PRECISION rho_ice_co2T(ngrid,nlay)
146	DOUBLE PRECISION riceco2(ngrid,nlay) ! CO2Ice mean radius (m)
147	REAL rhocloud(ngrid,nlay) ! Cloud density (kg.m-3)
148
149	REAL rhocloudco2(ngrid,nlay) ! Cloud density (kg.m-3)
150	REAL rdust(ngrid,nlay) ! Dust geometric mean radius (m)
151
152	c REAL res ! Resistance growth
153	DOUBLE PRECISION Ic_rice ! Mass transfer rate CO2 ice crystal
154	DOUBLE PRECISION ratioh2o_ccn
155	DOUBLE PRECISION vo2co2
156
157	c Parameters of the size discretization used by the microphysical scheme
158	DOUBLE PRECISION, PARAMETER :: rmin_cld = 1.e-9 ! Minimum radius (m)
159	DOUBLE PRECISION, PARAMETER :: rmax_cld = 5.e-6 ! Maximum radius (m)
160	DOUBLE PRECISION, PARAMETER :: rbmin_cld =1.e-10 ! Minimum bounary radius (m)
161	DOUBLE PRECISION, PARAMETER :: rbmax_cld = 2.e-4 ! Maximum boundary radius (m)
162	DOUBLE PRECISION vrat_cld ! Volume ratio
163	DOUBLE PRECISION rb_cldco2(nbinco2_cld+1) ! boundary values of each rad_cldco2 bin (m)
164	SAVE rb_cldco2
165	DOUBLE PRECISION dr_cld(nbinco2_cld) ! width of each rad_cldco2 bin (m)
166	DOUBLE PRECISION vol_cld(nbinco2_cld) ! particle volume for each bin (m3)
167
168	DOUBLE PRECISION Proba,Masse_atm,drsurdt,reff,Probah2o
169	REAL sigma_iceco2 ! Variance of the co2 ice and CCN distributions
170	SAVE sigma_iceco2
171	REAL sigma_ice ! Variance of the h2o ice and CCN distributions
172	SAVE sigma_ice
173	DOUBLE PRECISION Niceco2,Qccnco2,Nccnco2
174
175	! Variables for the meteoritic flux:
176	integer,parameter :: nbin_meteor=100
177	integer,parameter :: nlev_meteor=130
178	double precision meteor_ccn(ngrid,nlay,100) !100=nbinco2_cld !!!
179	double precision,save :: meteor(130,100)
180	double precision mtemp(100),pression_meteor(130)
181	logical file_ok
182	integer read_ok
183	integer nelem,lebon1,lebon2
184	double precision :: ltemp1(130),ltemp2(130)
185	integer ibin,j
186	integer,parameter :: uMeteor=666
187
188	IF (firstcall) THEN
189	!=============================================================
190	! 0. Definition of the size grid
191	!=============================================================
192	c rad_cldco2 is the primary radius grid used for microphysics computation.
193	c The grid spacing is computed assuming a constant volume ratio
194	c between two consecutive bins; i.e. vrat_cld.
195	c vrat_cld is determined from the boundary values of the size grid:
196	c rmin_cld and rmax_cld.
197	c The rb_cldco2 array contains the boundary values of each rad_cldco2 bin.
198	c dr_cld is the width of each rad_cldco2 bin.
199
200	vrat_cld = log(rmax_cld/rmin_cld) / float(nbinco2_cld-1) *3.
201	vrat_cld = exp(vrat_cld)
202	rb_cldco2(1) = rbmin_cld
203	rad_cldco2(1) = rmin_cld
204	vol_cld(1) = 4./3. * dble(pi) * rmin_cldrmin_cldrmin_cld
205	do i=1,nbinco2_cld-1
206	rad_cldco2(i+1) = rad_cldco2(i) * vrat_cld**(1./3.)
207	vol_cld(i+1) = vol_cld(i) * vrat_cld
208	enddo
209	do i=1,nbinco2_cld
210	rb_cldco2(i+1)= ( (2.vrat_cld) / (vrat_cld+1.) )(1./3.)
211	& rad_cldco2(i)
212	dr_cld(i) = rb_cldco2(i+1) - rb_cldco2(i)
213	enddo
214	rb_cldco2(nbinco2_cld+1) = rbmax_cld
215	dr_cld(nbinco2_cld) = rb_cldco2(nbinco2_cld+1) -
216	& rb_cldco2(nbinco2_cld)
217	print*, ' '
218	print*,'Microphysics co2: size bin information:'
219	print*,'i,rb_cldco2(i), rad_cldco2(i),dr_cld(i)'
220	print*,'-----------------------------------'
221	do i=1,nbinco2_cld
222	write(*,'(i3,3x,3(e13.6,4x))') i,rb_cldco2(i), rad_cldco2(i),
223	& dr_cld(i)
224	enddo
225	write(*,'(i3,3x,e13.6)') nbinco2_cld+1,rb_cldco2(nbinco2_cld+1)
226	print*,'-----------------------------------'
227	do i=1,nbinco2_cld+1
228	rb_cldco2(i) = log(rb_cldco2(i)) !! we save that so that it is not computed
229	!! at each timestep and gridpoint
230	enddo
231	c Contact parameter of co2 ice on dst ( m=cos(theta) )
232	c ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
233	c mteta = 0.952
234	c mtetaco2 = 0.952
235	c write(,) 'co2_param contact parameter:', mtetaco2
236
237	c Volume of a co2 molecule (m3)
238	vo1co2 = m0co2 / dble(rho_ice_co2) ! m0co2 et non mco2
239
240	c Variance of the ice and CCN distributions
241	sigma_iceco2 = sqrt(log(1.+nuiceco2_sed))
242	sigma_ice = sqrt(log(1.+nuice_sed))
243
244
245	write(,) 'Variance of ice & CCN CO2 distribs :', sigma_iceco2
246	write(,) 'nuice for co2 ice sedimentation:', nuiceco2_sed
247	write(,) 'Volume of a co2 molecule:', vo1co2
248
249	if (co2useh2o) then
250	write(,)
251	write(,) "co2useh2o=.true. in callphys.def"
252	write(,) "This means water ice particles can "
253	write(,) "serve as CCN for CO2 microphysics"
254	endif
255
256	if (meteo_flux) then
257	write(,)
258	write(,) "meteo_flux=.true. in callphys.def"
259	write(,) "meteoritic dust particles are available"
260	write(,) "for co2 ice nucleation! "
261	write(,) "Flux given by J. Plane (pressions,size bins)"
262	! Initialisation of the flux: it is constant and is it saved
263	!We must interpolate the table to the GCM pressures
264	INQUIRE(FILE=TRIM(datadir)//
265	& '/Meteo_flux_Plane.dat', EXIST=file_ok)
266	IF (.not. file_ok) THEN
267	write(,) 'file Meteo_flux_Plane.dat should be in '
268	& ,trim(datadir)
269	STOP
270	endif
271	!used Variables
272	open(unit=uMeteor,file=trim(datadir)//
273	& '/Meteo_flux_Plane.dat'
274	& ,FORM='formatted')
275	!13000 records (130 pressions x 100 bin sizes)
276	read(uMeteor,*) !skip 1 line
277	do i=1,130
278	read(uMeteor,*,iostat=read_ok) pression_meteor(i)
279	if (read_ok==0) then
280	write(,) pression_meteor(i)
281	else
282	write(,) 'Error reading Meteo_flux_Plane.dat'
283	call abort_physic("CO2clouds",
284	& "Error reading Meteo_flux_Plane.dat",1)
285	endif
286	enddo
287	read(uMeteor,*) !skip 1 line
288	do i=1,130
289	do j=1,100 ! les mêmes 100 bins size que la distri nuclea: on touche pas
290	read(uMeteor,'(F12.6)',iostat=read_ok) meteor(i,j)
291	if (read_ok/=0) then
292	write(,) 'Error reading Meteo_flux_Plane.dat'
293	call abort_physic("CO2clouds",
294	& "Error reading Meteo_flux_Plane.dat",1)
295	endif
296	enddo
297	!On doit maintenant réinterpoler le tableau(130,100) sur les pressions du GCM (nlay,100)
298	enddo
299	close(uMeteor)
300	write(,) "File meteo_flux read, end of firstcall in co2 micro"
301	endif !of if meteo_flux
302
303	! Parameter values for Latent heat computation
304	l0=595594d0
305	l1=903.111d0
306	l2=-11.5959d0
307	l3=0.0528288d0
308	l4=-0.000103183d0
309
310	c D.BARDET:
311	c No = 1.e10
312	firstcall=.false.
313	END IF
314	!=============================================================
315	! 1. Initialisation
316	!=============================================================
317
318	meteor_ccn(:,:,:)=0.
319	rice(:,:) = 1.e-8
320	riceco2(:,:) = 1.e-11
321
322	c Initialize the tendencies
323	subpdqcloudco2(1:ngrid,1:nlay,1:nq)=0.
324	subpdtcloudco2(1:ngrid,1:nlay)=0.
325
326	c pteff temperature layer; sum_subpdt dT.s-1
327	c pqeff traceur kg/kg; sum_subpdq tendance idem .s-1
328	zt(1:ngrid,1:nlay) =
329	& pteff(1:ngrid,1:nlay) +
330	& sum_subpdt(1:ngrid,1:nlay) * microtimestep
331	zq(1:ngrid,1:nlay,1:nq) =
332	& pqeff(1:ngrid,1:nlay,1:nq) +
333	& sum_subpdq(1:ngrid,1:nlay,1:nq) * microtimestep
334	WHERE( zq(1:ngrid,1:nlay,1:nq) < 1.e-30 )
335	& zq(1:ngrid,1:nlay,1:nq) = 1.e-30
336
337	zq0(1:ngrid,1:nlay,1:nq) = zq(1:ngrid,1:nlay,1:nq)
338	!=============================================================
339	! 2. Compute saturation
340	!=============================================================
341	dev2 = 1. / ( sqrt(2.) * sigma_iceco2 )
342	dev3 = 1. / ( sqrt(2.) * sigma_ice )
343	call co2sat(ngrid*nlay,zt,pplay,zqsat) !zqsat is psat(co2)
344	zqco2=zq(:,:,igcm_co2)+zq(:,:,igcm_co2_ice)
345	CALL tcondco2(ngrid,nlay,pplay,zqco2,tcond)
346	!=============================================================
347	! 3. Bonus: additional meteoritic particles for nucleation
348	!=============================================================
349	if (meteo_flux) then
350	!pression_meteo(130)
351	!pplev(ngrid,nlay+1)
352	!meteo(130,100)
353	!resultat: meteo_ccn(ngrid,nlay,100)
354	do l=1,nlay
355	do ig=1,ngrid
356	masse(ig,l)=(pplev(ig,l) - pplev(ig,l+1)) /g
357	ltemp1=abs(pression_meteor(:)-pplev(ig,l))
358	ltemp2=abs(pression_meteor(:)-pplev(ig,l+1))
359	lebon1=minloc(ltemp1,DIM=1)
360	lebon2=minloc(ltemp2,DIM=1)
361	nelem=lebon2-lebon1+1.
362	mtemp(:)=0d0 !mtemp(100) : valeurs pour les 100bins
363	do ibin=1,100
364	mtemp(ibin)=sum(meteor(lebon1:lebon2,ibin))
365	enddo
366	meteor_ccn(ig,l,:)=mtemp(:)/nelem/masse(ig,l) !Par kg air
367	csi par m carre, x epaisseur/masse pour par kg/air
368	!write(,) "masse air ig l=",masse(ig,l)
369	!check original unit with J. Plane
370	enddo
371	enddo
372	endif
373	c ------------------------------------------------------------------------
374	c --------- Actual microphysics : Main loop over the GCM's grid ---------
375	c ------------------------------------------------------------------------
376	DO l=1,nlay
377	DO ig=1,ngrid
378	c Get the partial pressure of co2 vapor and its saturation ratio
379	pco2 = zq(ig,l,igcm_co2) * (mmean(ig,l)/44.01) * pplay(ig,l)
380	satu = pco2 / zqsat(ig,l)
381
382	rho_ice_co2T(ig,l)=1000.(1.72391-2.53e-4zt(ig,l)
383	& -2.87e-6zt(ig,l)zt(ig,l)) !T-dependant CO2 ice density
384	vo2co2 = m0co2 / dble(rho_ice_co2T(ig,l))
385	rho_ice_co2=rho_ice_co2T(ig,l)
386
387	!=============================================================
388	!4. Nucleation
389	!=============================================================
390	IF ( satu .ge. 1 ) THEN ! if there is condensation
391
392	call updaterccnCO2(zq(ig,l,igcm_dust_mass),
393	& zq(ig,l,igcm_dust_number),rdust(ig,l),tauscaling(ig))
394
395	c D.BARDET: sensibility test
396	c rdust=2.e-6
397
398	c Expand the dust moments into a binned distribution
399
400	n_aer(:)=0.
401	m_aer(:)=0.
402
403	Mo =4.pirho_dustNordust(ig,l)**(3.)
404	& exp(9.nuiceco2_ref/2.)/3. ! in Madeleine et al 2011
405
406	No = zq(ig,l,igcm_dust_number)* tauscaling(ig)+1.e-30
407
408	No_dust=No
409	Mo_dust=Mo
410
411	Rn = rdust(ig,l)
412	Rn = -log(Rn)
413	Rm = Rn - 3. * sigma_iceco2*sigma_iceco2
414	n_derf = derf( (rb_cldco2(1)+Rn) *dev2)
415	m_derf = derf( (rb_cldco2(1)+Rm) *dev2)
416
417	do i = 1, nbinco2_cld
418	n_aer(i) = -0.5 * No * n_derf !! this ith previously computed
419	m_aer(i) = -0.5 * Mo * m_derf !! this ith previously computed
420	n_derf = derf((rb_cldco2(i+1)+Rn) *dev2)
421	m_derf = derf((rb_cldco2(i+1)+Rm) *dev2)
422	n_aer(i) = n_aer(i) + 0.5 * No * n_derf
423	m_aer(i) = m_aer(i) + 0.5 * Mo * m_derf
424	enddo
425
426	c Ajout meteor_ccn particles aux particules de poussière background
427	if (meteo_flux) then
428	do i = 1, nbinco2_cld
429	n_aer(i) = n_aer(i) + meteor_ccn(ig,l,i)
430	m_aer(i) = m_aer(i) + 4./3.pirho_dust
431	& meteor_ccn(ig,l,i)rad_cldco2(i)*rad_cldco2(i)
432	& *rad_cldco2(i)
433	enddo
434	endif
435
436	c Same but with h2o particles as CCN only if co2useh2o=.true.
437
438	n_aer_h2oice(:)=0.
439	m_aer_h2oice(:)=0.
440
441	if (co2useh2o) then
442	call updaterice_micro(zq(ig,l,igcm_h2o_ice),
443	& zq(ig,l,igcm_ccn_mass),zq(ig,l,igcm_ccn_number),
444	& tauscaling(ig),rice(ig,l),rhocloud(ig,l))
445	Mo = zq(ig,l,igcm_h2o_ice) +
446	& zq(ig,l,igcm_ccn_mass)*tauscaling(ig)+1.e-30
447	! Total mass of H20 crystals,CCN included
448	No = zq(ig,l,igcm_ccn_number)* tauscaling(ig) + 1.e-30
449	Rn = rice(ig,l)
450	Rn = -log(Rn)
451	Rm = Rn - 3. * sigma_ice*sigma_ice
452	n_derf = derf( (rb_cldco2(1)+Rn) *dev3)
453	m_derf = derf( (rb_cldco2(1)+Rm) *dev3)
454	do i = 1, nbinco2_cld
455	n_aer_h2oice(i) = -0.5 * No * n_derf
456	m_aer_h2oice(i) = -0.5 * Mo * m_derf
457	n_derf = derf( (rb_cldco2(i+1)+Rn) *dev3)
458	m_derf = derf( (rb_cldco2(i+1)+Rm) *dev3)
459	n_aer_h2oice(i) = n_aer_h2oice(i) + 0.5 * No * n_derf
460	m_aer_h2oice(i) = m_aer_h2oice(i) + 0.5 * Mo * m_derf
461	rad_h2oice(i) = rad_cldco2(i)
462	enddo
463	endif
464
465
466	! Call to nucleation routine
467	call nucleaco2(dble(pco2),zt(ig,l),dble(satu)
468	& ,n_aer,rate,n_aer_h2oice
469	& ,rad_h2oice,rateh2o,vo2co2)
470	dN = 0.
471	dM = 0.
472	dNh2o = 0.
473	dMh2o = 0.
474	do i = 1, nbinco2_cld
475	Proba =1.0-exp(-1.microtimesteprate(i))
476	dN = dN + n_aer(i) * Proba
477	dM = dM + m_aer(i) * Proba
478	enddo
479	if (co2useh2o) then
480	do i = 1, nbinco2_cld
481	Probah2o = 1.0-exp(-1.microtimesteprateh2o(i))
482	dNh2o = dNh2o + n_aer_h2oice(i) * Probah2o
483	dMh2o = dMh2o + m_aer_h2oice(i) * Probah2o
484	enddo
485	endif
486
487	! dM masse activée (kg) et dN nb particules par kg d'air
488	! Now increment CCN tracers and update dust tracers
489	dNN= dN/tauscaling(ig)
490	dMM= dM/tauscaling(ig)
491	dNN=min(dNN,zq(ig,l,igcm_dust_number))
492	dMM=min(dMM,zq(ig,l,igcm_dust_mass))
493	zq(ig,l,igcm_ccnco2_mass) =
494	& zq(ig,l,igcm_ccnco2_mass) + dMM
495	zq(ig,l,igcm_ccnco2_number) =
496	& zq(ig,l,igcm_ccnco2_number) + dNN
497	zq(ig,l,igcm_dust_mass)= zq(ig,l,igcm_dust_mass)-dMM
498	zq(ig,l,igcm_dust_number)=zq(ig,l,igcm_dust_number)-dNN
499
500
501	c Update CCN for CO2 nucleating on H2O CCN :
502	! Warning: must keep memory of it
503	if (co2useh2o) then
504	dNNh2o=dNh2o/tauscaling(ig)
505	dNNh2o=min(dNNh2o,zq(ig,l,igcm_ccn_number))
506	ratioh2o_ccn=1./(zq(ig,l,igcm_h2o_ice)
507	& +zq(ig,l,igcm_ccn_mass)*tauscaling(ig))
508	dMh2o_ice=dMh2ozq(ig,l,igcm_h2o_ice)ratioh2o_ccn
509	dMh2o_ccn=dMh2ozq(ig,l,igcm_ccn_mass)
510	& tauscaling(ig)*ratioh2o_ccn
511	dMh2o_ccn=dMh2o_ccn/tauscaling(ig)
512	dMh2o_ccn=min(dMh2o_ccn,zq(ig,l,igcm_ccn_mass))
513	dMh2o_ice=min(dMh2o_ice,zq(ig,l,igcm_h2o_ice))
514	zq(ig,l,igcm_ccnco2_mass) =
515	& zq(ig,l,igcm_ccnco2_mass) + dMh2o_ice+dMh2o_ccn
516	zq(ig,l,igcm_ccnco2_number) =
517	& zq(ig,l,igcm_ccnco2_number) + dNNh2o
518	zq(ig,l,igcm_ccn_number)=zq(ig,l,igcm_ccn_number)-dNNh2o
519	zq(ig,l,igcm_h2o_ice) = zq(ig,l,igcm_h2o_ice)-dMh2o_ice
520	zq(ig,l,igcm_ccn_mass)= zq(ig,l,igcm_ccn_mass)-dMh2o_ccn
521	mem_Mh2o_co2(ig,l)=mem_Mh2o_co2(ig,l)+dMh2o_ice
522	mem_Mccn_co2(ig,l)=mem_Mccn_co2(ig,l)+dMh2o_ccn
523	mem_Nccn_co2(ig,l)=mem_Nccn_co2(ig,l)+dNNh2o
524	endif ! of if co2useh2o
525	ENDIF ! of is satu >1
526
527	!=============================================================
528	! 5. Ice growth: scheme for radius evolution
529	!=============================================================
530
531	c We trigger crystal growth if and only if there is at least one nuclei (N>1).
532	c Indeed, if we are supersaturated and still don't have at least one nuclei, we should better wait
533	c to avoid unrealistic value for nuclei radius and so on for cases that remain negligible.
534	IF (zq(ig,l,igcm_ccnco2_number)
535	& * tauscaling(ig)+1.e-30.ge. 1)THEN ! we trigger crystal growth
536
537	call updaterice_microco2(dble(zq(ig,l,igcm_co2_ice)),
538	& dble(zq(ig,l,igcm_ccnco2_mass)),
539	& dble(zq(ig,l,igcm_ccnco2_number)),
540	& tauscaling(ig),riceco2(ig,l),rhocloudco2(ig,l))
541
542	Ic_rice=0.
543	lw = l0 + l1 * zt(ig,l) + l2 * zt(ig,l)**2 +
544	& l3 * zt(ig,l)*3 + l4 zt(ig,l)**4 !J.kg-1
545	facteurmax=abs(Tcond(ig,l)-zt(ig,l))*cpp/lw
546	!specific heat of co2 ice = 1000 J.kg-1.K-1
547	!specific heat of atm cpp = 744.5 J.kg-1.K-1
548
549	c call scheme of microphys. mass growth for CO2
550	call massflowrateco2(pplay(ig,l),zt(ig,l),
551	& satu,riceco2(ig,l),mmean(ig,l),Ic_rice)
552	c Ic_rice Mass transfer rate (kg/s) for a rice particle >0 si croissance !
553
554	if (isnan(Ic_rice) .or. Ic_rice .eq. 0.) then
555	Ic_rice=0.
556	subpdtcloudco2(ig,l)=-sum_subpdt(ig,l)
557	dMice=0
558
559	else
560	dMice=zq(ig,l,igcm_ccnco2_number)Ic_ricemicrotimestep
561	& *tauscaling(ig) ! Kg par kg d'air, >0 si croissance !
562	!kg.s-1 par particule * nb particule par kg air*s
563	! = kg par kg air
564
565	dMice = max(dMice,max(-facteurmax,-zq(ig,l,igcm_co2_ice)))
566	dMice = min(dMice,min(facteurmax,zq(ig,l,igcm_co2)))
567	! facteurmax maximum quantity of CO2 that can sublime/condense according to available thermal energy
568	! latent heat release >0 if growth i.e. if dMice >0
569	subpdtcloudco2(ig,l)=dMice*lw/cpp/microtimestep
570	! kgco2/kgair* J/kgco2 * 1/(J.kgair-1.K-1)/s= K par seconde
571	!Now update tracers
572	zq(ig,l,igcm_co2_ice) = zq(ig,l,igcm_co2_ice)+dMice
573	zq(ig,l,igcm_co2) = zq(ig,l,igcm_co2)-dMice
574	endif
575
576	!=============================================================
577	! 6. Dust cores releasing if no more co2 ice :
578	!=============================================================
579
580	if (zq(ig,l,igcm_co2_ice).le. 1.e-25)THEN
581	! On sublime tout
582	if (co2useh2o) then
583	if (mem_Mccn_co2(ig,l) .gt. 0) then
584	zq(ig,l,igcm_ccn_mass)=zq(ig,l,igcm_ccn_mass)
585	& +mem_Mccn_co2(ig,l)
586	endif
587	if (mem_Mh2o_co2(ig,l) .gt. 0) then
588	zq(ig,l,igcm_h2o_ice)=zq(ig,l,igcm_h2o_ice)
589	& +mem_Mh2o_co2(ig,l)
590	endif
591
592	if (mem_Nccn_co2(ig,l) .gt. 0) then
593	zq(ig,l,igcm_ccn_number)=zq(ig,l,igcm_ccn_number)
594	& +mem_Nccn_co2(ig,l)
595	endif
596	endif
597	zq(ig,l,igcm_dust_mass) =
598	& zq(ig,l,igcm_dust_mass)
599	& + zq(ig,l,igcm_ccnco2_mass)-
600	& (mem_Mh2o_co2(ig,l)+mem_Mccn_co2(ig,l))
601	zq(ig,l,igcm_dust_number) =
602	& zq(ig,l,igcm_dust_number)
603	& + zq(ig,l,igcm_ccnco2_number)
604	& -mem_Nccn_co2(ig,l)
605
606	zq(ig,l,igcm_co2) = zq(ig,l,igcm_co2)
607	& + zq(ig,l,igcm_co2_ice)
608
609	zq(ig,l,igcm_ccnco2_mass)=0.
610	zq(ig,l,igcm_co2_ice)=0.
611	zq(ig,l,igcm_ccnco2_number)=0.
612	mem_Nccn_co2(ig,l)=0.
613	mem_Mh2o_co2(ig,l)=0.
614	mem_Mccn_co2(ig,l)=0.
615	riceco2(ig,l)=0.
616
617	endif !of if co2_ice <1e-25
618
619	ENDIF ! of if NCCN > 1
620	ENDDO ! of ig loop
621	ENDDO ! of nlayer loop
622
623	!=============================================================
624	! 7. END: get cloud tendencies
625	!=============================================================
626
627	! Get cloud tendencies
628	subpdqcloudco2(1:ngrid,1:nlay,igcm_co2) =
629	& (zq(1:ngrid,1:nlay,igcm_co2) -
630	& zq0(1:ngrid,1:nlay,igcm_co2))/microtimestep
631	subpdqcloudco2(1:ngrid,1:nlay,igcm_co2_ice) =
632	& (zq(1:ngrid,1:nlay,igcm_co2_ice) -
633	& zq0(1:ngrid,1:nlay,igcm_co2_ice))/microtimestep
634
635	if (co2useh2o) then
636	subpdqcloudco2(1:ngrid,1:nlay,igcm_h2o_ice) =
637	& (zq(1:ngrid,1:nlay,igcm_h2o_ice) -
638	& zq0(1:ngrid,1:nlay,igcm_h2o_ice))/microtimestep
639	subpdqcloudco2(1:ngrid,1:nlay,igcm_ccn_mass) =
640	& (zq(1:ngrid,1:nlay,igcm_ccn_mass) -
641	& zq0(1:ngrid,1:nlay,igcm_ccn_mass))/microtimestep
642	subpdqcloudco2(1:ngrid,1:nlay,igcm_ccn_number) =
643	& (zq(1:ngrid,1:nlay,igcm_ccn_number) -
644	& zq0(1:ngrid,1:nlay,igcm_ccn_number))/microtimestep
645	endif
646
647	subpdqcloudco2(1:ngrid,1:nlay,igcm_ccnco2_mass) =
648	& (zq(1:ngrid,1:nlay,igcm_ccnco2_mass) -
649	& zq0(1:ngrid,1:nlay,igcm_ccnco2_mass))/microtimestep
650	subpdqcloudco2(1:ngrid,1:nlay,igcm_ccnco2_number) =
651	& (zq(1:ngrid,1:nlay,igcm_ccnco2_number) -
652	& zq0(1:ngrid,1:nlay,igcm_ccnco2_number))/microtimestep
653	subpdqcloudco2(1:ngrid,1:nlay,igcm_dust_mass) =
654	& (zq(1:ngrid,1:nlay,igcm_dust_mass) -
655	& zq0(1:ngrid,1:nlay,igcm_dust_mass))/microtimestep
656	subpdqcloudco2(1:ngrid,1:nlay,igcm_dust_number) =
657	& (zq(1:ngrid,1:nlay,igcm_dust_number) -
658	& zq0(1:ngrid,1:nlay,igcm_dust_number))/microtimestep
659
660
661	c TEST D.BARDET
662	call WRITEDIAGFI(ngrid,"No_dust","Nombre particules de poussière"
663	& ,"part/kg",3,No_dust)
664	call WRITEDIAGFI(ngrid,"Mo_dust","Masse particules de poussière"
665	& ,"kg/kg ",3,Mo_dust)
666
667	END SUBROUTINE improvedco2clouds
668
669	END MODULE improvedco2clouds_mod
670

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