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improvedclouds_mod.F @ 2502

Last change on this file since 2502 was 2437, checked in by mvals, 5 years ago

Mars GCM:

improvedclouds_mod.F: update of the nucleation equation with its analytical resolution
writediagmicrofi.F: makes it possible to get outputs from the microphysics (call example in watercloud_mod.F)

File size: 24.0 KB

Rev	Line
[1963]	1	MODULE improvedclouds_mod
	2
	3	IMPLICIT NONE
	4
	5	CONTAINS
	6
[1909]	7	subroutine improvedclouds(ngrid,nlay,microtimestep,
	8	& pplay,pteff,sum_subpdt,
	9	& pqeff,sum_subpdq,subpdqcloud,subpdtcloud,
[633]	10	& nq,tauscaling)
[2304]	11	USE updaterad, ONLY: updaterice_micro, updaterccn
[1996]	12	USE watersat_mod, ONLY: watersat
[1036]	13	use tracer_mod, only: rho_ice, nuice_sed, igcm_h2o_vap,
	14	& igcm_h2o_ice, igcm_dust_mass,
	15	& igcm_dust_number, igcm_ccn_mass,
[2407]	16	& igcm_ccn_number,
	17	& igcm_hdo_vap,igcm_hdo_ice,
	18	& qperemin
[1047]	19	use conc_mod, only: mmean
[2304]	20	use comcstfi_h, only: pi, cpp
[358]	21	implicit none
[633]	22
	23
[358]	24	c------------------------------------------------------------------
	25	c This routine is used to form clouds when a parcel of the GCM is
	26	c saturated. It includes the ability to have supersaturation, a
	27	c computation of the nucleation rates, growthrates and the
	28	c scavenging of dust particles by clouds.
	29	c It is worth noting that the amount of dust is computed using the
	30	c dust optical depth computed in aeropacity.F. That's why
	31	c the variable called "tauscaling" is used to convert
	32	c pq(dust_mass) and pq(dust_number), which are relative
	33	c quantities, to absolute and realistic quantities stored in zq.
	34	c This has to be done to convert the inputs into absolute
	35	c values, but also to convert the outputs back into relative
	36	c values which are then used by the sedimentation and advection
	37	c schemes.
	38
	39	c Authors: J.-B. Madeleine, based on the work by Franck Montmessin
	40	c (October 2011)
[626]	41	c T. Navarro, debug,correction, new scheme (October-April 2011)
[530]	42	c A. Spiga, optimization (February 2012)
[358]	43	c------------------------------------------------------------------
	44	#include "callkeys.h"
	45	#include "microphys.h"
	46	c------------------------------------------------------------------
[1976]	47	c Inputs/outputs:
[358]	48
[1976]	49	INTEGER, INTENT(IN) :: ngrid,nlay
	50	INTEGER, INTENT(IN) :: nq ! nombre de traceurs
	51	REAL, INTENT(IN) :: microtimestep ! pas de temps physique (s)
	52	REAL, INTENT(IN) :: pplay(ngrid,nlay) ! pression au milieu des couches (Pa)
	53	REAL, INTENT(IN) :: pteff(ngrid,nlay) ! temperature at the middle of the
	54	! layers (K)
	55	REAL, INTENT(IN) :: sum_subpdt(ngrid,nlay)! tendance temperature des autres
	56	! param.
	57	REAL, INTENT(IN) :: pqeff(ngrid,nlay,nq) ! traceur (kg/kg)
	58	REAL, INTENT(IN) :: sum_subpdq(ngrid,nlay,nq) ! tendance avant condensation
	59	! (kg/kg.s-1)
	60	REAL, INTENT(IN) :: tauscaling(ngrid) ! Convertion factor for qdust and Ndust
	61
	62	REAL, INTENT(OUT) :: subpdqcloud(ngrid,nlay,nq) ! tendance de la condensation
	63	! H2O(kg/kg.s-1)
	64	REAL, INTENT(OUT) :: subpdtcloud(ngrid,nlay) ! tendance temperature due
	65	! a la chaleur latente
[358]	66
	67	c------------------------------------------------------------------
	68	c Local variables:
	69
	70	LOGICAL firstcall
	71	DATA firstcall/.true./
	72	SAVE firstcall
	73
	74	REAL*8 derf ! Error function
	75	!external derf
[740]	76
[358]	77	INTEGER ig,l,i
[520]	78
[1047]	79	REAL zq(ngrid,nlay,nq) ! local value of tracers
	80	REAL zq0(ngrid,nlay,nq) ! local initial value of tracers
	81	REAL zt(ngrid,nlay) ! local value of temperature
	82	REAL zqsat(ngrid,nlay) ! saturation
[358]	83	REAL lw !Latent heat of sublimation (J.kg-1)
[633]	84	REAL cste
	85	REAL dMice ! mass of condensed ice
[2407]	86	REAL dMice_hdo ! mass of condensed HDO ice
	87	REAL alpha(ngrid,nlay) ! HDO equilibrium fractionation coefficient (Saturation=1)
	88	REAL alpha_c(ngrid,nlay) ! HDO real fractionation coefficient
[633]	89	! REAL sumcheck
[358]	90	REAL*8 ph2o ! Water vapor partial pressure (Pa)
	91	REAL*8 satu ! Water vapor saturation ratio over ice
	92	REAL*8 Mo,No
[633]	93	REAL*8 Rn, Rm, dev2, n_derf, m_derf
[358]	94	REAL*8 n_aer(nbin_cld) ! number conc. of particle/each size bin
	95	REAL*8 m_aer(nbin_cld) ! mass mixing ratio of particle/each size bin
[633]	96
[358]	97	REAL*8 sig ! Water-ice/air surface tension (N.m)
	98	EXTERNAL sig
	99
[633]	100	REAL dN,dM
	101	REAL rate(nbin_cld) ! nucleation rate
	102	REAL seq
	103
	104	REAL rice(ngrid,nlay) ! Ice mass mean radius (m)
	105	! (r_c in montmessin_2004)
[1047]	106	REAL rhocloud(ngrid,nlay) ! Cloud density (kg.m-3)
	107	REAL rdust(ngrid,nlay) ! Dust geometric mean radius (m)
[633]	108
	109	REAL res ! Resistance growth
[2407]	110	REAL Dv,Dv_hdo ! Water/HDO vapor diffusion coefficient
[740]	111
[633]	112
[358]	113	c Parameters of the size discretization
	114	c used by the microphysical scheme
	115	DOUBLE PRECISION, PARAMETER :: rmin_cld = 0.1e-6 ! Minimum radius (m)
	116	DOUBLE PRECISION, PARAMETER :: rmax_cld = 10.e-6 ! Maximum radius (m)
	117	DOUBLE PRECISION, PARAMETER :: rbmin_cld = 0.0001e-6
	118	! Minimum boundary radius (m)
	119	DOUBLE PRECISION, PARAMETER :: rbmax_cld = 1.e-2 ! Maximum boundary radius (m)
	120	DOUBLE PRECISION vrat_cld ! Volume ratio
	121	DOUBLE PRECISION rb_cld(nbin_cld+1)! boundary values of each rad_cld bin (m)
	122	SAVE rb_cld
[520]	123	DOUBLE PRECISION dr_cld(nbin_cld) ! width of each rad_cld bin (m)
	124	DOUBLE PRECISION vol_cld(nbin_cld) ! particle volume for each bin (m3)
[358]	125
[633]	126
[358]	127	REAL sigma_ice ! Variance of the ice and CCN distributions
	128	SAVE sigma_ice
[633]	129
	130
[520]	131
[420]	132	c----------------------------------
[633]	133	c TESTS
	134
	135	INTEGER countcells
[420]	136
[626]	137	LOGICAL test_flag ! flag for test/debuging outputs
[740]	138	SAVE test_flag
	139
	140
	141	REAL satubf(ngrid,nlay),satuaf(ngrid,nlay)
	142	REAL res_out(ngrid,nlay)
[633]	143
[358]	144
	145	c------------------------------------------------------------------
	146
[1779]	147	! AS: firstcall OK absolute
[358]	148	IF (firstcall) THEN
[626]	149	!=============================================================
	150	! 0. Definition of the size grid
	151	!=============================================================
[358]	152	c rad_cld is the primary radius grid used for microphysics computation.
	153	c The grid spacing is computed assuming a constant volume ratio
	154	c between two consecutive bins; i.e. vrat_cld.
	155	c vrat_cld is determined from the boundary values of the size grid:
	156	c rmin_cld and rmax_cld.
	157	c The rb_cld array contains the boundary values of each rad_cld bin.
	158	c dr_cld is the width of each rad_cld bin.
	159
	160	c Volume ratio between two adjacent bins
[1307]	161	! vrat_cld = log(rmax_cld/rmin_cld) / float(nbin_cld-1) *3.
	162	! vrat_cld = exp(vrat_cld)
[2151]	163	vrat_cld = log(rmax_cld/rmin_cld) / float(nbin_cld-1) *3.
	164	vrat_cld = exp(vrat_cld)
[358]	165	write(,) "vrat_cld", vrat_cld
	166
	167	rb_cld(1) = rbmin_cld
	168	rad_cld(1) = rmin_cld
[530]	169	vol_cld(1) = 4./3. * dble(pi) * rmin_cldrmin_cldrmin_cld
[1307]	170	! vol_cld(1) = 4./3. * pi * rmin_cldrmin_cldrmin_cld
[358]	171
	172	do i=1,nbin_cld-1
[531]	173	rad_cld(i+1) = rad_cld(i) * vrat_cld**(1./3.)
[358]	174	vol_cld(i+1) = vol_cld(i) * vrat_cld
	175	enddo
	176
	177	do i=1,nbin_cld
[531]	178	rb_cld(i+1)= ( (2.vrat_cld) / (vrat_cld+1.) )(1./3.)
[358]	179	& rad_cld(i)
	180	dr_cld(i) = rb_cld(i+1) - rb_cld(i)
	181	enddo
	182	rb_cld(nbin_cld+1) = rbmax_cld
	183	dr_cld(nbin_cld) = rb_cld(nbin_cld+1) - rb_cld(nbin_cld)
	184
	185	print*, ' '
	186	print*,'Microphysics: size bin information:'
	187	print*,'i,rb_cld(i), rad_cld(i),dr_cld(i)'
	188	print*,'-----------------------------------'
	189	do i=1,nbin_cld
	190	write(*,'(i2,3x,3(e12.6,4x))') i,rb_cld(i), rad_cld(i),
	191	& dr_cld(i)
	192	enddo
	193	write(*,'(i2,3x,e12.6)') nbin_cld+1,rb_cld(nbin_cld+1)
	194	print*,'-----------------------------------'
	195
[541]	196	do i=1,nbin_cld+1
[740]	197	! rb_cld(i) = log(rb_cld(i))
[2151]	198	rb_cld(i) = log(rb_cld(i)) !! we save that so that it is not computed
[541]	199	!! at each timestep and gridpoint
	200	enddo
	201
[358]	202	c Contact parameter of water ice on dust ( m=cos(theta) )
	203	c ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	204	! mteta = 0.95
	205	write(,) 'water_param contact parameter:', mteta
	206
	207	c Volume of a water molecule (m3)
	208	vo1 = mh2o / dble(rho_ice)
	209	c Variance of the ice and CCN distributions
	210	sigma_ice = sqrt(log(1.+nuice_sed))
[633]	211
	212
[358]	213	write(,) 'Variance of ice & CCN distribs :', sigma_ice
[455]	214	write(,) 'nuice for sedimentation:', nuice_sed
[358]	215	write(,) 'Volume of a water molecule:', vo1
	216
[633]	217
	218	test_flag = .false.
	219
[358]	220	firstcall=.false.
	221	END IF
	222
[633]	223
[626]	224	!=============================================================
	225	! 1. Initialisation
	226	!=============================================================
[1909]	227	cste = 4pirho_ice*microtimestep
[626]	228
[740]	229	res_out(:,:) = 0
	230	rice(:,:) = 1.e-8
	231
[411]	232	c Initialize the tendencies
[1909]	233	subpdqcloud(1:ngrid,1:nlay,1:nq)=0
	234	subpdtcloud(1:ngrid,1:nlay)=0
[633]	235
[411]	236
[633]	237	zt(1:ngrid,1:nlay) =
[1909]	238	& pteff(1:ngrid,1:nlay) +
	239	& sum_subpdt(1:ngrid,1:nlay) * microtimestep
[358]	240
[633]	241	zq(1:ngrid,1:nlay,1:nq) =
[1909]	242	& pqeff(1:ngrid,1:nlay,1:nq) +
	243	& sum_subpdq(1:ngrid,1:nlay,1:nq) * microtimestep
[633]	244
	245
	246	WHERE( zq(1:ngrid,1:nlay,1:nq) < 1.e-30 )
	247	& zq(1:ngrid,1:nlay,1:nq) = 1.e-30
[768]	248
	249	zq0(1:ngrid,1:nlay,1:nq) = zq(1:ngrid,1:nlay,1:nq)
[633]	250
[626]	251	!=============================================================
	252	! 2. Compute saturation
	253	!=============================================================
[358]	254
[633]	255
[541]	256	dev2 = 1. / ( sqrt(2.) * sigma_ice )
[358]	257
[1047]	258	call watersat(ngrid*nlay,zt,pplay,zqsat)
[358]	259
[633]	260	countcells = 0
[358]	261
	262	c Main loop over the GCM's grid
	263	DO l=1,nlay
	264	DO ig=1,ngrid
	265
	266	c Get the partial pressure of water vapor and its saturation ratio
[663]	267	ph2o = zq(ig,l,igcm_h2o_vap) * (mmean(ig,l)/18.) * pplay(ig,l)
[689]	268	satu = zq(ig,l,igcm_h2o_vap) / zqsat(ig,l)
[358]	269
[626]	270	!=============================================================
	271	! 3. Nucleation
	272	!=============================================================
	273
[633]	274	IF ( satu .ge. 1. ) THEN ! if there is condensation
	275
[740]	276	call updaterccn(zq(ig,l,igcm_dust_mass),
	277	& zq(ig,l,igcm_dust_number),rdust(ig,l),tauscaling(ig))
[633]	278
	279
[358]	280	c Expand the dust moments into a binned distribution
[633]	281	Mo = zq(ig,l,igcm_dust_mass)* tauscaling(ig) + 1.e-30
[626]	282	No = zq(ig,l,igcm_dust_number)* tauscaling(ig) + 1.e-30
[358]	283	Rn = rdust(ig,l)
[2151]	284	Rn = -log(Rn)
[530]	285	Rm = Rn - 3. * sigma_ice*sigma_ice
[626]	286	n_derf = derf( (rb_cld(1)+Rn) *dev2)
	287	m_derf = derf( (rb_cld(1)+Rm) *dev2)
[358]	288	do i = 1, nbin_cld
[626]	289	n_aer(i) = -0.5 * No * n_derf !! this ith previously computed
	290	m_aer(i) = -0.5 * Mo * m_derf !! this ith previously computed
	291	n_derf = derf( (rb_cld(i+1)+Rn) *dev2)
	292	m_derf = derf( (rb_cld(i+1)+Rm) *dev2)
	293	n_aer(i) = n_aer(i) + 0.5 * No * n_derf
	294	m_aer(i) = m_aer(i) + 0.5 * Mo * m_derf
[358]	295	enddo
[530]	296
[358]	297	! sumcheck = 0
	298	! do i = 1, nbin_cld
	299	! sumcheck = sumcheck + n_aer(i)
	300	! enddo
	301	! sumcheck = abs(sumcheck/No - 1)
	302	! if ((sumcheck .gt. 1e-5).and. (1./Rn .gt. rmin_cld)) then
	303	! print*, "WARNING, No sumcheck PROBLEM"
	304	! print*, "sumcheck, No",sumcheck, No
	305	! print*, "min radius, Rn, ig, l", rmin_cld, 1./Rn, ig, l
	306	! print*, "Dust binned distribution", n_aer
	307	! endif
	308	!
	309	! sumcheck = 0
	310	! do i = 1, nbin_cld
[411]	311	! sumcheck = sumcheck + m_aer(i)
[358]	312	! enddo
	313	! sumcheck = abs(sumcheck/Mo - 1)
	314	! if ((sumcheck .gt. 1e-5) .and. (1./Rn .gt. rmin_cld)) then
	315	! print*, "WARNING, Mo sumcheck PROBLEM"
[411]	316	! print*, "sumcheck, Mo",sumcheck, Mo
[358]	317	! print*, "min radius, Rm, ig, l", rmin_cld, 1./Rm, ig, l
	318	! print*, "Dust binned distribution", m_aer
	319	! endif
[633]	320
	321
[358]	322	c Get the rates of nucleation
	323	call nuclea(ph2o,zt(ig,l),satu,n_aer,rate)
[411]	324
[358]	325	dN = 0.
	326	dM = 0.
	327	do i = 1, nbin_cld
[2437]	328	dN = dN + n_aer(i)(exp(-rate(i)microtimestep)-1.)
	329	dM = dM + m_aer(i)(exp(-rate(i)microtimestep)-1.)
[358]	330	enddo
	331
[633]	332
	333	c Update Dust particles
[626]	334	zq(ig,l,igcm_dust_mass) =
[2437]	335	& zq(ig,l,igcm_dust_mass) + dM/ tauscaling(ig) !max(tauscaling(ig),1.e-10)
[626]	336	zq(ig,l,igcm_dust_number) =
[2437]	337	& zq(ig,l,igcm_dust_number) + dN/ tauscaling(ig) !max(tauscaling(ig),1.e-10)
[633]	338	c Update CCNs
[626]	339	zq(ig,l,igcm_ccn_mass) =
[2437]	340	& zq(ig,l,igcm_ccn_mass) - dM/ tauscaling(ig) !max(tauscaling(ig),1.e-10)
[626]	341	zq(ig,l,igcm_ccn_number) =
[2437]	342	& zq(ig,l,igcm_ccn_number) - dN/ tauscaling(ig) !max(tauscaling(ig),1.e-10)
[626]	343
[633]	344	ENDIF ! of is satu >1
[626]	345
	346	!=============================================================
	347	! 4. Ice growth: scheme for radius evolution
	348	!=============================================================
	349
[633]	350	c We trigger crystal growth if and only if there is at least one nuclei (N>1).
	351	c Indeed, if we are supersaturated and still don't have at least one nuclei, we should better wait
	352	c to avoid unrealistic value for nuclei radius and so on for cases that remain negligible.
	353
	354	IF ( zq(ig,l,igcm_ccn_number)*tauscaling(ig).ge. 1.) THEN ! we trigger crystal growth
	355
[740]	356
	357	call updaterice_micro(zq(ig,l,igcm_h2o_ice),
	358	& zq(ig,l,igcm_ccn_mass),zq(ig,l,igcm_ccn_number),
	359	& tauscaling(ig),rice(ig,l),rhocloud(ig,l))
[633]	360
	361	No = zq(ig,l,igcm_ccn_number)* tauscaling(ig) + 1.e-30
[626]	362
	363	c saturation at equilibrium
[740]	364	c rice should not be too small, otherwise seq value is not valid
	365	seq = exp(2.sig(zt(ig,l))mh2o / (rho_icergpzt(ig,l)*
	366	& max(rice(ig,l),1.e-7)))
	367
[633]	368	c get resistance growth
	369	call growthrate(zt(ig,l),pplay(ig,l),
[2407]	370	& real(ph2o/satu),rice(ig,l),res,Dv)
[358]	371
[740]	372	res_out(ig,l) = res
[626]	373
[633]	374	ccccccc implicit scheme of mass growth
[626]	375
[633]	376	dMice =
	377	& (zq(ig,l,igcm_h2o_vap)-seq*zqsat(ig,l))
	378	& /(reszqsat(ig,l)/(csteNo*rice(ig,l)) + 1.)
[358]	379
[626]	380
[633]	381	! With the above scheme, dMice cannot be bigger than vapor,
	382	! but can be bigger than all available ice.
	383	dMice = max(dMice,-zq(ig,l,igcm_h2o_ice))
	384	dMice = min(dMice,zq(ig,l,igcm_h2o_vap)) ! this should be useless...
	385
	386	zq(ig,l,igcm_h2o_ice) = zq(ig,l,igcm_h2o_ice)+dMice
	387	zq(ig,l,igcm_h2o_vap) = zq(ig,l,igcm_h2o_vap)-dMice
	388
	389
	390	countcells = countcells + 1
	391
	392	! latent heat release
	393	lw=(2834.3-0.28*(zt(ig,l)-To)-
	394	& 0.004(zt(ig,l)-To)(zt(ig,l)-To))*1.e+3
[1909]	395	subpdtcloud(ig,l)= dMice*lw/cpp/microtimestep
[358]	396
[2407]	397	c Special case of the isotope of water HDO
	398	if (hdo) then
	399	!! condensation
	400	if (dMice.gt.0.0) then
	401	!! do we use fractionation?
	402	if (hdofrac) then
	403	!! Calculation of the HDO vapor coefficient
	404	Dv_hdo = 1./3. * sqrt( 8kbzzt(ig,l)/(pi*mhdo/nav) )
	405	& * kbz * zt(ig,l) /
	406	& ( pi * pplay(ig,l) * (molco2+molhdo)*(molco2+molhdo)
	407	& * sqrt(1.+mhdo/mco2) )
	408	!! Calculation of the fractionnation coefficient at equilibrium
	409	alpha(ig,l) = exp(16288./zt(ig,l)**2.-9.34d-2)
	410	c alpha = exp(13525./zt(ig,l)**2.-5.59d-2) !Lamb
	411	!! Calculation of the 'real' fractionnation coefficient
	412	alpha_c(ig,l) = (alpha(ig,l)*satu)/
	413	& ( (alpha(ig,l)(Dv/Dv_hdo)(satu-1.)) + 1.)
	414	c alpha_c(ig,l) = alpha(ig,l) ! to test without the effect of cinetics
	415	else
	416	alpha_c(ig,l) = 1.d0
	417	endif
	418	if (zq0(ig,l,igcm_h2o_vap).gt.qperemin) then
	419	dMice_hdo=
	420	& dMicealpha_c(ig,l)
	421	& ( zq0(ig,l,igcm_hdo_vap)
	422	& /zq0(ig,l,igcm_h2o_vap) )
	423	else
	424	dMice_hdo=0.
	425	endif
	426	!! sublimation
	427	else
	428	if (zq0(ig,l,igcm_h2o_ice).gt.qperemin) then
	429	dMice_hdo=
	430	& dMice*
	431	& ( zq0(ig,l,igcm_hdo_ice)
	432	& /zq0(ig,l,igcm_h2o_ice) )
	433	else
	434	dMice_hdo=0.
	435	endif
	436	endif !if (dMice.gt.0.0)
	437
	438	dMice_hdo = max(dMice_hdo,-zq(ig,l,igcm_hdo_ice))
	439	dMice_hdo = min(dMice_hdo,zq(ig,l,igcm_hdo_vap))
	440
	441	zq(ig,l,igcm_hdo_ice) = zq(ig,l,igcm_hdo_ice)+dMice_hdo
	442	zq(ig,l,igcm_hdo_vap) = zq(ig,l,igcm_hdo_vap)-dMice_hdo
	443
	444	endif ! if (hdo)
[358]	445
[626]	446	!=============================================================
	447	! 5. Dust cores released, tendancies, latent heat, etc ...
	448	!=============================================================
	449
[358]	450	c If all the ice particles sublimate, all the condensation
[626]	451	c nuclei are released:
[1307]	452	if (zq(ig,l,igcm_h2o_ice).le.1.e-28) then
[633]	453
[626]	454	c Water
	455	zq(ig,l,igcm_h2o_vap) = zq(ig,l,igcm_h2o_vap)
	456	& + zq(ig,l,igcm_h2o_ice)
[358]	457	zq(ig,l,igcm_h2o_ice) = 0.
[2407]	458	if (hdo) then
	459	zq(ig,l,igcm_hdo_vap) = zq(ig,l,igcm_hdo_vap)
	460	& + zq(ig,l,igcm_hdo_ice)
	461	zq(ig,l,igcm_hdo_ice) = 0.
	462	endif
[358]	463	c Dust particles
[626]	464	zq(ig,l,igcm_dust_mass) = zq(ig,l,igcm_dust_mass)
	465	& + zq(ig,l,igcm_ccn_mass)
	466	zq(ig,l,igcm_dust_number) = zq(ig,l,igcm_dust_number)
	467	& + zq(ig,l,igcm_ccn_number)
[358]	468	c CCNs
	469	zq(ig,l,igcm_ccn_mass) = 0.
	470	zq(ig,l,igcm_ccn_number) = 0.
[633]	471
[358]	472	endif
[411]	473
[633]	474	ENDIF !of if Nccn>1
	475
[626]	476	ENDDO ! of ig loop
	477	ENDDO ! of nlayer loop
[520]	478
[633]	479
	480	! Get cloud tendencies
[1909]	481	subpdqcloud(1:ngrid,1:nlay,igcm_h2o_vap) =
[740]	482	& (zq(1:ngrid,1:nlay,igcm_h2o_vap) -
[1909]	483	& zq0(1:ngrid,1:nlay,igcm_h2o_vap))/microtimestep
	484	subpdqcloud(1:ngrid,1:nlay,igcm_h2o_ice) =
[740]	485	& (zq(1:ngrid,1:nlay,igcm_h2o_ice) -
[1909]	486	& zq0(1:ngrid,1:nlay,igcm_h2o_ice))/microtimestep
[2407]	487	if (hdo) then
	488	subpdqcloud(1:ngrid,1:nlay,igcm_hdo_vap) =
	489	& (zq(1:ngrid,1:nlay,igcm_hdo_vap) -
	490	& zq0(1:ngrid,1:nlay,igcm_hdo_vap))/microtimestep
	491	subpdqcloud(1:ngrid,1:nlay,igcm_hdo_ice) =
	492	& (zq(1:ngrid,1:nlay,igcm_hdo_ice) -
	493	& zq0(1:ngrid,1:nlay,igcm_hdo_ice))/microtimestep
	494	endif
[1909]	495	subpdqcloud(1:ngrid,1:nlay,igcm_ccn_mass) =
[740]	496	& (zq(1:ngrid,1:nlay,igcm_ccn_mass) -
[1909]	497	& zq0(1:ngrid,1:nlay,igcm_ccn_mass))/microtimestep
	498	subpdqcloud(1:ngrid,1:nlay,igcm_ccn_number) =
[740]	499	& (zq(1:ngrid,1:nlay,igcm_ccn_number) -
[1909]	500	& zq0(1:ngrid,1:nlay,igcm_ccn_number))/microtimestep
[411]	501
[740]	502	if (scavenging) then
[633]	503
[1909]	504	subpdqcloud(1:ngrid,1:nlay,igcm_dust_mass) =
[740]	505	& (zq(1:ngrid,1:nlay,igcm_dust_mass) -
[1909]	506	& zq0(1:ngrid,1:nlay,igcm_dust_mass))/microtimestep
	507	subpdqcloud(1:ngrid,1:nlay,igcm_dust_number) =
[740]	508	& (zq(1:ngrid,1:nlay,igcm_dust_number) -
[1909]	509	& zq0(1:ngrid,1:nlay,igcm_dust_number))/microtimestep
[740]	510
	511	endif
[633]	512
[740]	513
	514
[626]	515	!!!!!!!!!!!!!! TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS
	516	!!!!!!!!!!!!!! TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS
[740]	517	!!!!!!!!!!!!!! TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS
[626]	518	IF (test_flag) then
	519
[633]	520	! error2d(:) = 0.
[740]	521	DO l=1,nlay
	522	DO ig=1,ngrid
[633]	523	! error2d(ig) = max(abs(error_out(ig,l)),error2d(ig))
[740]	524	satubf(ig,l) = zq0(ig,l,igcm_h2o_vap)/zqsat(ig,l)
	525	satuaf(ig,l) = zq(ig,l,igcm_h2o_vap)/zqsat(ig,l)
	526	ENDDO
	527	ENDDO
[420]	528
[633]	529	print*, 'count is ',countcells, ' i.e. ',
	530	& countcells100/(nlayngrid), '% for microphys computation'
[358]	531
[1212]	532	#ifndef MESOSCALE
[633]	533	! IF (ngrid.ne.1) THEN ! 3D
[626]	534	! call WRITEDIAGFI(ngrid,"satu","ratio saturation","",3,
	535	! & satu_out)
	536	! call WRITEDIAGFI(ngrid,"dM","ccn variation","kg/kg",3,
	537	! & dM_out)
	538	! call WRITEDIAGFI(ngrid,"dN","ccn variation","#",3,
	539	! & dN_out)
[633]	540	! call WRITEDIAGFI(ngrid,"error","dichotomy max error","%",2,
	541	! & error2d)
[626]	542	! call WRITEDIAGFI(ngrid,"zqsat","zqsat","kg",3,
	543	! & zqsat)
[633]	544	! ENDIF
[358]	545
[633]	546	! IF (ngrid.eq.1) THEN ! 1D
	547	! call WRITEDIAGFI(ngrid,"error","incertitude sur glace","%",1,
	548	! & error_out)
[740]	549	call WRITEdiagfi(ngrid,"resist","resistance","s/m2",1,
	550	& res_out)
	551	call WRITEdiagfi(ngrid,"satu_bf","satu before","kg/kg",1,
	552	& satubf)
	553	call WRITEdiagfi(ngrid,"satu_af","satu after","kg/kg",1,
	554	& satuaf)
	555	call WRITEdiagfi(ngrid,"vapbf","h2ovap before","kg/kg",1,
[1020]	556	& zq0(1,1,igcm_h2o_vap))
[740]	557	call WRITEdiagfi(ngrid,"vapaf","h2ovap after","kg/kg",1,
[1020]	558	& zq(1,1,igcm_h2o_vap))
[740]	559	call WRITEdiagfi(ngrid,"icebf","h2oice before","kg/kg",1,
[1020]	560	& zq0(1,1,igcm_h2o_ice))
[740]	561	call WRITEdiagfi(ngrid,"iceaf","h2oice after","kg/kg",1,
[1020]	562	& zq(1,1,igcm_h2o_ice))
[740]	563	call WRITEdiagfi(ngrid,"ccnbf","ccn before","/kg",1,
[1020]	564	& zq0(1,1,igcm_ccn_number))
[740]	565	call WRITEdiagfi(ngrid,"ccnaf","ccn after","/kg",1,
[1020]	566	& zq(1,1,igcm_ccn_number))
[626]	567	c call WRITEDIAGFI(ngrid,"growthrate","growth rate","m^2/s",1,
	568	c & gr_out)
	569	c call WRITEDIAGFI(ngrid,"nuclearate","nucleation rate","",1,
	570	c & rate_out)
	571	c call WRITEDIAGFI(ngrid,"dM","ccn variation","kg",1,
	572	c & dM_out)
	573	c call WRITEDIAGFI(ngrid,"dN","ccn variation","#",1,
	574	c & dN_out)
[740]	575	call WRITEdiagfi(ngrid,"zqsat","p vap sat","kg/kg",1,
	576	& zqsat)
[633]	577	! call WRITEDIAGFI(ngrid,"satu","ratio saturation","",1,
	578	! & satu_out)
[740]	579	call WRITEdiagfi(ngrid,"rice","ice radius","m",1,
	580	& rice)
[633]	581	! call WRITEDIAGFI(ngrid,"rdust_sca","rdust","m",1,
	582	! & rdust)
	583	! call WRITEDIAGFI(ngrid,"rsedcloud","rsedcloud","m",1,
	584	! & rsedcloud)
	585	! call WRITEDIAGFI(ngrid,"rhocloud","rhocloud","kg.m-3",1,
	586	! & rhocloud)
	587	! ENDIF
[1212]	588	#endif
[626]	589
	590	ENDIF ! endif test_flag
	591	!!!!!!!!!!!!!! TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS
	592	!!!!!!!!!!!!!! TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS
	593	!!!!!!!!!!!!!! TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS TESTS OUTPUTS
	594
[358]	595	return
[1963]	596
[626]	597
	598
	599
	600	cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
	601	cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
	602	c The so -called "phi" function is such as phi(r) - phi(r0) = t - t0
	603	c It is an analytical solution to the ice radius growth equation,
	604	c with the approximation of a constant 'reduced' cunningham correction factor
	605	c (lambda in growthrate.F) taken at radius req instead of rice
	606	cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
	607	cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
	608
[633]	609	c subroutine phi(rice,req,coeff1,coeff2,time)
	610	c
	611	c implicit none
	612	c
	613	c ! inputs
	614	c real rice ! ice radius
	615	c real req ! ice radius at equilibirum
	616	c real coeff1 ! coeff for the log
	617	c real coeff2 ! coeff for the arctan
	618	c
	619	c ! output
	620	c real time
	621	c
	622	c !local
	623	c real var
	624	c
	625	c ! 1.73205 is sqrt(3)
	626	c
	627	c var = max(
	628	c & abs(rice-req) / sqrt(ricerice + ricereq + req*req),1e-30)
	629	c
	630	c time =
	631	c & coeff1 *
	632	c & log( var )
	633	c & + coeff2 * 1.73205 *
	634	c & atan( (2rice+req) / (1.73205req) )
	635	c
	636	c return
	637	c end
[626]	638
	639
	640
[1963]	641	END SUBROUTINE improvedclouds
	642
	643	END MODULE improvedclouds_mod

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