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newmicro.F @ 1779

Last change on this file since 1779 was 1723, checked in by idelkadi, 12 years ago
Correction dans newmicro.F : initialisation des tableaux (rel et re)
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[1279]	1	! $Id: newmicro.F 1723 2013-02-04 13:25:36Z fairhead $
[1523]	2
	3
[1279]	4	!
[1712]	5	SUBROUTINE newmicro (ok_cdnc, bl95_b0, bl95_b1,
	6	. paprs, pplay,
[524]	7	. t, pqlwp, pclc, pcltau, pclemi,
	8	. pch, pcl, pcm, pct, pctlwp,
[1712]	9	. xflwp, xfiwp, xflwc, xfiwc,
	10	. mass_solu_aero, mass_solu_aero_pi,
	11	. pcldtaupi, re, fl, reliq, reice)
	12	c
[766]	13	USE dimphy
[1337]	14	USE phys_local_var_mod, only: scdnc,cldncl,reffclwtop,lcc,
	15	. reffclws,reffclwc,cldnvi,lcc3d,
	16	. lcc3dcon,lcc3dstra
	17	USE phys_state_var_mod, only: rnebcon,clwcon
[524]	18	IMPLICIT none
	19	c======================================================================
	20	c Auteur(s): Z.X. Li (LMD/CNRS) date: 19930910
[1712]	21	c O. Boucher (LMD/CNRS) mise a jour en 201212
[524]	22	c Objet: Calculer epaisseur optique et emmissivite des nuages
	23	c======================================================================
	24	c Arguments:
[1712]	25	c ok_cdnc-input-L-flag pour calculer les rayons a partir des aerosols
	26	c
[524]	27	c t-------input-R-temperature
[1712]	28	c pqlwp---input-R-eau liquide nuageuse dans l'atmosphere dans la partie nuageuse (kg/kg)
[524]	29	c pclc----input-R-couverture nuageuse pour le rayonnement (0 a 1)
[1279]	30	c mass_solu_aero-----input-R-total mass concentration for all soluble aerosols[ug/m^3]
[1712]	31	c mass_solu_aero_pi--input-R-ditto, pre-industrial value
	32	c
	33	c bl95_b0-input-R-a PARAMETER, may be varied for tests (s-sea, l-land)
	34	c bl95_b1-input-R-a PARAMETER, may be varied for tests ( -"- )
[524]	35	c
	36	c re------output-R-Cloud droplet effective radius multiplied by fl [um]
	37	c fl------output-R-Denominator to re, introduced to avoid problems in
	38	c the averaging of the output. fl is the fraction of liquid
	39	c water clouds within a grid cell
[1712]	40	c
[524]	41	c pcltau--output-R-epaisseur optique des nuages
	42	c pclemi--output-R-emissivite des nuages (0 a 1)
[1712]	43	c pcldtaupi-output-R-pre-industrial value of cloud optical thickness,
	44	c
	45	c pcl-output-R-2D low-level cloud cover
	46	c pcm-output-R-2D mid-level cloud cover
	47	c pch-output-R-2D high-level cloud cover
	48	c pct-output-R-2D total cloud cover
[524]	49	c======================================================================
	50	C
	51	#include "YOMCST.h"
	52	#include "nuage.h"
[685]	53	#include "radepsi.h"
	54	#include "radopt.h"
[1712]	55
[1337]	56	c choix de l'hypothese de recouvrememnt nuageuse
[1712]	57	LOGICAL RANDOM, MAXIMUM_RANDOM, MAXIMUM
	58	PARAMETER (RANDOM=.FALSE., MAXIMUM_RANDOM=.TRUE., MAXIMUM=.FALSE.)
	59	c
[1479]	60	LOGICAL, SAVE :: FIRST=.TRUE.
	61	!$OMP THREADPRIVATE(FIRST)
[1337]	62	INTEGER flag_max
[1712]	63	c
	64	c threshold PARAMETERs
[1337]	65	REAL thres_tau,thres_neb
	66	PARAMETER (thres_tau=0.3, thres_neb=0.001)
	67	c
[1712]	68	REAL phase3d(klon, klev)
	69	REAL tcc(klon), ftmp(klon), lcc_integrat(klon), height(klon)
	70	c
	71	REAL paprs(klon,klev+1)
	72	REAL pplay(klon,klev)
[524]	73	REAL t(klon,klev)
	74	REAL pclc(klon,klev)
	75	REAL pqlwp(klon,klev)
[1712]	76	REAL pcltau(klon,klev)
	77	REAL pclemi(klon,klev)
	78	REAL pcldtaupi(klon, klev)
[524]	79	c
[1712]	80	REAL pct(klon)
	81	REAL pcl(klon)
	82	REAL pcm(klon)
	83	REAL pch(klon)
	84	REAL pctlwp(klon)
[524]	85	c
	86	LOGICAL lo
	87	c
[1523]	88	!!Abderr modif JL mail du 19.01.2011 18:31
	89	! REAL cetahb, cetamb
	90	! PARAMETER (cetahb = 0.45, cetamb = 0.80)
	91	! Remplacer
[1712]	92	! cetahb*paprs(i,1) par prmhc
	93	! cetamb*paprs(i,1) par prlmc
	94	REAL prmhc ! Pressure between medium and high level cloud in Pa
	95	REAL prlmc ! Pressure between low and medium level cloud in Pa
[1523]	96	PARAMETER (prmhc = 440.100., prlmc = 680.100.)
[524]	97	C
	98	INTEGER i, k
	99	REAL xflwp(klon), xfiwp(klon)
	100	REAL xflwc(klon,klev), xfiwc(klon,klev)
	101	c
[1712]	102	REAL radius
	103	c
	104	REAL coef_froi, coef_chau
[524]	105	PARAMETER (coef_chau=0.13, coef_froi=0.09)
[1712]	106	c
[1286]	107	REAL seuil_neb
	108	PARAMETER (seuil_neb=0.001)
[1712]	109	c
[524]	110	INTEGER nexpo ! exponentiel pour glace/eau
	111	PARAMETER (nexpo=6)
[1712]	112	c PARAMETER (nexpo=1)
[524]	113
[1712]	114	REAL rel, tc, rei
	115	REAL k_ice0, k_ice, DF
	116	PARAMETER (k_ice0=0.005) ! units=m2/g
	117	PARAMETER (DF=1.66) ! diffusivity factor
	118	c
[524]	119	cjq for the aerosol indirect effect
	120	cjq introduced by Johannes Quaas (quaas@lmd.jussieu.fr), 27/11/2003
	121	cjq
[1279]	122	REAL mass_solu_aero(klon, klev) ! total mass concentration for all soluble aerosols [ug m-3]
	123	REAL mass_solu_aero_pi(klon, klev) ! - " - (pre-industrial value)
[524]	124	REAL cdnc(klon, klev) ! cloud droplet number concentration [m-3]
	125	REAL re(klon, klev) ! cloud droplet effective radius [um]
	126	REAL cdnc_pi(klon, klev) ! cloud droplet number concentration [m-3] (pi value)
	127	REAL re_pi(klon, klev) ! cloud droplet effective radius [um] (pi value)
	128
	129	REAL fl(klon, klev) ! xliq * rneb (denominator to re; fraction of liquid water clouds within the grid cell)
	130
[1712]	131	LOGICAL ok_cdnc
[524]	132	REAL bl95_b0, bl95_b1 ! Parameter in B&L 95-Formula
	133
	134	cjq-end
[685]	135	cIM cf. CR:parametres supplementaires
	136	REAL zclear(klon)
	137	REAL zcloud(klon)
[1523]	138	REAL zcloudh(klon)
	139	REAL zcloudm(klon)
	140	REAL zcloudl(klon)
[1712]	141	REAL rhodz(klon, klev) !--rho*dz pour la couche
	142	REAL zrho(klon, klev) !--rho pour la couche
	143	REAL dh(klon, klev) !--dz pour la couche
	144	REAL zfice(klon, klev)
	145	REAL rad_chaud(klon, klev) !--rayon pour les nuages chauds
	146	REAL zflwp_var, zfiwp_var
[1525]	147	REAL d_rei_dt
[1146]	148
[1279]	149	! Abderrahmane oct 2009
	150	Real reliq(klon, klev), reice(klon, klev)
	151
[1525]	152	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
	153	! FH : 2011/05/24
	154	!
	155	! rei = ( rei_max - rei_min ) * T(°C) / 81.4 + rei_max
	156	! to be used for a temperature in celcius T(°C) < 0
	157	! rei=rei_min for T(°C) < -81.4
	158	!
	159	! Calcul de la pente de la relation entre rayon effective des cristaux
	160	! et la température.
	161	! Pour retrouver les résultats numériques de la version d'origine,
	162	! on impose 0.71 quand on est proche de 0.71
[1712]	163	c
[1525]	164	d_rei_dt=(rei_max-rei_min)/81.4
	165	if (abs(d_rei_dt-0.71)<1.e-4) d_rei_dt=0.71
	166	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[524]	167	c
	168	c Calculer l'epaisseur optique et l'emmissivite des nuages
[1712]	169	c IM inversion des DO
[524]	170	c
[1146]	171	xflwp = 0.d0
	172	xfiwp = 0.d0
	173	xflwc = 0.d0
	174	xfiwc = 0.d0
[1712]	175	c
[1334]	176	reliq=0.
	177	reice=0.
[1712]	178	c
[524]	179	DO k = 1, klev
[1712]	180	DO i = 1, klon
	181	c-layer calculation
	182	rhodz(i,k) = (paprs(i,k)-paprs(i,k+1))/RG ! kg/m2
	183	zrho(i,k)=pplay(i,k)/t(i,k)/RD ! kg/m3
	184	dh(i,k)=rhodz(i,k)/zrho(i,k) ! m
	185	c-Fraction of ice in cloud using a linear transition
	186	zfice(i,k) = 1.0 - (t(i,k)-t_glace_min) /
	187	& (t_glace_max-t_glace_min)
	188	zfice(i,k) = MIN(MAX(zfice(i,k),0.0),1.0)
	189	c-IM Total Liquid/Ice water content
	190	xflwc(i,k) = (1.-zfice(i,k))*pqlwp(i,k)
	191	xfiwc(i,k) = zfice(i,k)*pqlwp(i,k)
[1146]	192	ENDDO
	193	ENDDO
[524]	194
[1712]	195	IF (ok_cdnc) THEN
	196	c
	197	c--we compute cloud properties as a function of the aerosol load
	198	c
	199	DO k = 1, klev
[1146]	200	DO i = 1, klon
[1712]	201	c
	202	c Formula "D" of Boucher and Lohmann, Tellus, 1995
	203	c Cloud droplet number concentration (CDNC) is restricted
	204	c to be within [20, 1000 cm^3]
	205	c
	206	c--present-day case
	207	cdnc(i,k) = 10.*(bl95_b0+bl95_b1
[1279]	208	& log(MAX(mass_solu_aero(i,k),1.e-4))/log(10.))*1.e6 !-m-3
[1712]	209	cdnc(i,k)=MIN(1000.e6,MAX(20.e6,cdnc(i,k)))
	210	c
	211	c--pre-industrial case
	212	cdnc_pi(i,k) = 10.*(bl95_b0+bl95_b1
[1305]	213	& log(MAX(mass_solu_aero_pi(i,k),1.e-4))/log(10.))
	214	& *1.e6 !-m-3
[1712]	215	cdnc_pi(i,k)=MIN(1000.e6,MAX(20.e6,cdnc_pi(i,k)))
	216	c
	217	c--present-day case
	218	rad_chaud(i,k) =
	219	& 1.1((pqlwp(i,k)pplay(i,k)/(RD * T(i,k)))
	220	& /(4./3RPI1000.cdnc(i,k)) )*(1./3.)
	221	rad_chaud(i,k) = MAX(rad_chaud(i,k) * 1.e6, 5.)
	222	c
	223	c--pre-industrial case
	224	radius =
	225	& 1.1((pqlwp(i,k)pplay(i,k)/(RD * T(i,k)))
	226	& /(4./3.RPI1000.cdnc_pi(i,k)))*(1./3.)
	227	radius = MAX(radius*1.e6, 5.)
	228	c
	229	c--pre-industrial case
	230	c--liquid/ice cloud water paths:
	231	IF (pclc(i,k) .LE. seuil_neb) THEN
	232	c
	233	pcldtaupi(i,k) = 0.0
	234	c
	235	ELSE
	236	c
	237	zflwp_var= 1000.(1.-zfice(i,k))pqlwp(i,k)/pclc(i,k)
	238	& *rhodz(i,k)
	239	zfiwp_var= 1000.zfice(i,k)pqlwp(i,k)/pclc(i,k)
	240	& *rhodz(i,k)
	241	tc = t(i,k)-273.15
	242	rei = d_rei_dt*tc + rei_max
	243	if (tc.le.-81.4) rei = rei_min
	244	c
	245	c-- cloud optical thickness :
	246	c [for liquid clouds, traditional formula,
	247	c for ice clouds, Ebert & Curry (1992)]
	248	c
	249	if (zflwp_var.eq.0.) radius = 1.
	250	if (zfiwp_var.eq.0. .or. rei.le.0.) rei = 1.
	251	pcldtaupi(i,k) = 3.0/2.0 * zflwp_var / radius
	252	& + zfiwp_var * (3.448e-03 + 2.431/rei)
	253	c
	254	ENDIF
	255	c
	256	ENDDO
	257	ENDDO
	258	c
	259	ELSE !--not ok_cdnc
	260	c
	261	c-prescribed cloud droplet radius
	262	c
	263	DO k = 1, MIN(3,klev)
	264	DO i = 1, klon
	265	rad_chaud(i,k) = rad_chau2
	266	ENDDO
	267	ENDDO
	268	DO k = MIN(3,klev)+1, klev
	269	DO i = 1, klon
	270	rad_chaud(i,k) = rad_chau1
	271	ENDDO
	272	ENDDO
[524]	273
[1712]	274	ENDIF !--ok_cdnc
	275	c
	276	c--computation of cloud optical depth and emissivity
	277	c--in the general case
	278	c
	279	DO k = 1, klev
	280	DO i = 1, klon
	281	c
	282	IF (pclc(i,k) .LE. seuil_neb) THEN
	283	c
	284	c effective cloud droplet radius (microns) for liquid water clouds:
	285	c For output diagnostics cloud droplet effective radius [um]
	286	c we multiply here with f * xl (fraction of liquid water
	287	c clouds in the grid cell) to avoid problems in the averaging of the output.
	288	c In the output of IOIPSL, derive the REAL cloud droplet
	289	c effective radius as re/fl
	290	c
	291	fl(i,k) = seuil_neb*(1.-zfice(i,k))
	292	re(i,k) = rad_chaud(i,k)*fl(i,k)
[1723]	293	rel = 0.
	294	rei = 0.
[1712]	295	pclc(i,k) = 0.0
	296	pcltau(i,k) = 0.0
	297	pclemi(i,k) = 0.0
	298	c
	299	ELSE
	300	c
[1146]	301	c -- liquid/ice cloud water paths:
	302
[1712]	303	zflwp_var= 1000.(1.-zfice(i,k))pqlwp(i,k)/pclc(i,k)
	304	& *rhodz(i,k)
	305	zfiwp_var= 1000.zfice(i,k)pqlwp(i,k)/pclc(i,k)
	306	& *rhodz(i,k)
	307	c
	308	c effective cloud droplet radius (microns) for liquid water clouds:
	309	c For output diagnostics cloud droplet effective radius [um]
	310	c we multiply here with f * xl (fraction of liquid water
	311	c clouds in the grid cell) to avoid problems in the averaging of the output.
	312	c In the output of IOIPSL, derive the REAL cloud droplet
	313	c effective radius as re/fl
	314	c
	315	fl(i,k) = pclc(i,k)*(1.-zfice(i,k))
	316	re(i,k) = rad_chaud(i,k)*fl(i,k)
	317	c
	318	rel = rad_chaud(i,k)
	319	c
	320	c for ice clouds: as a function of the ambiant temperature
	321	c [formula used by Iacobellis and Somerville (2000), with an
	322	c asymptotical value of 3.5 microns at T<-81.4 C added to be
	323	c consistent with observations of Heymsfield et al. 1986]:
	324	c 2011/05/24 : rei_min = 3.5 becomes a free PARAMETER as well as rei_max=61.29
	325	c
	326	tc = t(i,k)-273.15
	327	rei = d_rei_dt*tc + rei_max
	328	if (tc.le.-81.4) rei = rei_min
	329	c
	330	c-- cloud optical thickness :
	331	c [for liquid clouds, traditional formula,
	332	c for ice clouds, Ebert & Curry (1992)]
	333	c
[1279]	334	if (zflwp_var.eq.0.) rel = 1.
	335	if (zfiwp_var.eq.0. .or. rei.le.0.) rei = 1.
	336	pcltau(i,k) = 3.0/2.0 * ( zflwp_var/rel )
[1146]	337	& + zfiwp_var * (3.448e-03 + 2.431/rei)
[1712]	338	c
[1146]	339	c -- cloud infrared emissivity:
[1712]	340	c [the broadband infrared absorption coefficient is PARAMETERized
[1146]	341	c as a function of the effective cld droplet radius]
	342	c Ebert and Curry (1992) formula as used by Kiehl & Zender (1995):
[1712]	343	c
[1146]	344	k_ice = k_ice0 + 1.0/rei
[1712]	345	c
[1146]	346	pclemi(i,k) = 1.0
	347	& - EXP( -coef_chauzflwp_var - DFk_ice*zfiwp_var)
[1712]	348	c
	349	ENDIF
	350	c
	351	reliq(i,k)=rel
	352	reice(i,k)=rei
	353	c
	354	xflwp(i) = xflwp(i)+ xflwc(i,k) * rhodz(i,k)
	355	xfiwp(i) = xfiwp(i)+ xfiwc(i,k) * rhodz(i,k)
	356	c
	357	ENDDO
	358	ENDDO
	359	c
	360	c--if cloud droplet radius is fixed, then pcldtaupi=pcltau
	361	c
	362	IF (.NOT.ok_cdnc) THEN
[1146]	363	DO k = 1, klev
	364	DO i = 1, klon
[1712]	365	pcldtaupi(i,k)=pcltau(i,k)
[1146]	366	ENDDO
	367	ENDDO
	368	ENDIF
	369	C
	370	C COMPUTE CLOUD LIQUID PATH AND TOTAL CLOUDINESS
	371	c IM cf. CR:test: calcul prenant ou non en compte le recouvrement
	372	c initialisations
[1712]	373	c
[685]	374	DO i=1,klon
	375	zclear(i)=1.
	376	zcloud(i)=0.
[1523]	377	zcloudh(i)=0.
	378	zcloudm(i)=0.
	379	zcloudl(i)=0.
[524]	380	pch(i)=1.0
	381	pcm(i) = 1.0
	382	pcl(i) = 1.0
	383	pctlwp(i) = 0.0
	384	ENDDO
	385	C
[1712]	386	c--calculation of liquid water path
	387	c
[524]	388	DO k = klev, 1, -1
[1146]	389	DO i = 1, klon
[1712]	390	pctlwp(i) = pctlwp(i)+ pqlwp(i,k)*rhodz(i,k)
[1146]	391	ENDDO
	392	ENDDO
[1712]	393	c
	394	c--calculation of cloud properties with cloud overlap
	395	c
[1146]	396	IF (NOVLP.EQ.1) THEN
	397	DO k = klev, 1, -1
	398	DO i = 1, klon
[685]	399	zclear(i)=zclear(i)*(1.-MAX(pclc(i,k),zcloud(i)))
[1712]	400	& /(1.-MIN(REAL(zcloud(i), kind=8),1.-ZEPSEC))
[685]	401	pct(i)=1.-zclear(i)
[1523]	402	IF (paprs(i,k).LT.prmhc) THEN
	403	pch(i) = pch(i)*(1.-MAX(pclc(i,k),zcloudh(i)))
[1712]	404	& /(1.-MIN(REAL(zcloudh(i), kind=8),1.-ZEPSEC))
[1523]	405	zcloudh(i)=pclc(i,k)
	406	ELSE IF (paprs(i,k).GE.prmhc .AND.
	407	& paprs(i,k).LT.prlmc) THEN
	408	pcm(i) = pcm(i)*(1.-MAX(pclc(i,k),zcloudm(i)))
[1712]	409	& /(1.-MIN(REAL(zcloudm(i), kind=8),1.-ZEPSEC))
[1523]	410	zcloudm(i)=pclc(i,k)
	411	ELSE IF (paprs(i,k).GE.prlmc) THEN
	412	pcl(i) = pcl(i)*(1.-MAX(pclc(i,k),zcloudl(i)))
[1712]	413	& /(1.-MIN(REAL(zcloudl(i), kind=8),1.-ZEPSEC))
[1523]	414	zcloudl(i)=pclc(i,k)
[685]	415	endif
	416	zcloud(i)=pclc(i,k)
[1146]	417	ENDDO
	418	ENDDO
	419	ELSE IF (NOVLP.EQ.2) THEN
	420	DO k = klev, 1, -1
	421	DO i = 1, klon
[685]	422	zcloud(i)=MAX(pclc(i,k),zcloud(i))
	423	pct(i)=zcloud(i)
[1523]	424	IF (paprs(i,k).LT.prmhc) THEN
[685]	425	pch(i) = MIN(pclc(i,k),pch(i))
[1523]	426	ELSE IF (paprs(i,k).GE.prmhc .AND.
	427	& paprs(i,k).LT.prlmc) THEN
[685]	428	pcm(i) = MIN(pclc(i,k),pcm(i))
[1523]	429	ELSE IF (paprs(i,k).GE.prlmc) THEN
[685]	430	pcl(i) = MIN(pclc(i,k),pcl(i))
	431	endif
[1146]	432	ENDDO
	433	ENDDO
	434	ELSE IF (NOVLP.EQ.3) THEN
	435	DO k = klev, 1, -1
	436	DO i = 1, klon
[685]	437	zclear(i)=zclear(i)*(1.-pclc(i,k))
	438	pct(i)=1-zclear(i)
[1523]	439	IF (paprs(i,k).LT.prmhc) THEN
[1146]	440	pch(i) = pch(i)*(1.0-pclc(i,k))
[1523]	441	ELSE IF (paprs(i,k).GE.prmhc .AND.
	442	& paprs(i,k).LT.prlmc) THEN
[1146]	443	pcm(i) = pcm(i)*(1.0-pclc(i,k))
[1523]	444	ELSE IF (paprs(i,k).GE.prlmc) THEN
[1146]	445	pcl(i) = pcl(i)*(1.0-pclc(i,k))
[685]	446	endif
[1146]	447	ENDDO
[685]	448	ENDDO
[1146]	449	ENDIF
	450	C
[524]	451	DO i = 1, klon
	452	pch(i)=1.-pch(i)
	453	pcm(i)=1.-pcm(i)
	454	pcl(i)=1.-pcl(i)
	455	ENDDO
[1712]	456	c
[1337]	457	c ========================================================
[1712]	458	c DIAGNOSTICS CALCULATION FOR CMIP5 PROTOCOL
[1337]	459	c ========================================================
[1712]	460	c change by Nicolas Yan (LSCE)
	461	c Cloud Droplet Number Concentration (CDNC) : 3D variable
	462	c Fractionnal cover by liquid water cloud (LCC3D) : 3D variable
	463	c Cloud Droplet Number Concentration at top of cloud (CLDNCL) : 2D variable
	464	c Droplet effective radius at top of cloud (REFFCLWTOP) : 2D variable
	465	c Fractionnal cover by liquid water at top of clouds (LCC) : 2D variable
	466	c
	467	IF (ok_cdnc) THEN
	468	c
[1337]	469	DO k = 1, klev
	470	DO i = 1, klon
[1712]	471	phase3d(i,k)=1-zfice(i,k)
[1337]	472	IF (pclc(i,k) .LE. seuil_neb) THEN
	473	lcc3d(i,k)=seuil_neb*phase3d(i,k)
	474	ELSE
	475	lcc3d(i,k)=pclc(i,k)*phase3d(i,k)
	476	ENDIF
	477	scdnc(i,k)=lcc3d(i,k)*cdnc(i,k) ! m-3
	478	ENDDO
	479	ENDDO
[1712]	480	c
[1337]	481	DO i=1,klon
	482	lcc(i)=0.
	483	reffclwtop(i)=0.
	484	cldncl(i)=0.
	485	IF(RANDOM .OR. MAXIMUM_RANDOM) tcc(i) = 1.
	486	IF(MAXIMUM) tcc(i) = 0.
	487	ENDDO
[1712]	488	c
[1337]	489	DO i=1,klon
	490	DO k=klev-1,1,-1 !From TOA down
[1712]	491	c
[1337]	492	! Test, if the cloud optical depth exceeds the necessary
	493	! threshold:
	494
[1712]	495	IF (pcltau(i,k).GT.thres_tau
	496	. .AND. pclc(i,k).GT.thres_neb) THEN
[1337]	497
[1712]	498	IF (MAXIMUM) THEN
	499	IF (FIRST) THEN
[1337]	500	write(,)'Hypothese de recouvrement: MAXIMUM'
	501	FIRST=.FALSE.
	502	ENDIF
	503	flag_max= -1.
	504	ftmp(i) = MAX(tcc(i),pclc(i,k))
	505	ENDIF
	506
[1712]	507	IF (RANDOM) THEN
	508	IF (FIRST) THEN
[1337]	509	write(,)'Hypothese de recouvrement: RANDOM'
	510	FIRST=.FALSE.
	511	ENDIF
	512	flag_max= 1.
	513	ftmp(i) = tcc(i) * (1-pclc(i,k))
	514	ENDIF
	515
[1712]	516	IF (MAXIMUM_RANDOM) THEN
	517	IF (FIRST) THEN
[1337]	518	write(,)'Hypothese de recouvrement: MAXIMUM_
	519	. RANDOM'
	520	FIRST=.FALSE.
	521	ENDIF
	522	flag_max= 1.
	523	ftmp(i) = tcc(i) *
	524	. (1. - MAX(pclc(i,k),pclc(i,k+1))) /
	525	. (1. - MIN(pclc(i,k+1),1.-thres_neb))
	526	ENDIF
	527	c Effective radius of cloud droplet at top of cloud (m)
[1712]	528	reffclwtop(i) = reffclwtop(i) + rad_chaud(i,k) *
[1337]	529	. 1.0E-06 * phase3d(i,k) * ( tcc(i) - ftmp(i))*flag_max
	530	c CDNC at top of cloud (m-3)
	531	cldncl(i) = cldncl(i) + cdnc(i,k) * phase3d(i,k) *
	532	. (tcc(i) - ftmp(i))*flag_max
	533	c Liquid Cloud Content at top of cloud
	534	lcc(i) = lcc(i) + phase3d(i,k) * (tcc(i)-ftmp(i))*
	535	. flag_max
	536	c Total Cloud Content at top of cloud
	537	tcc(i)=ftmp(i)
	538
	539	ENDIF ! is there a visible, not-too-small cloud?
	540	ENDDO ! loop over k
[1712]	541	c
	542	IF (RANDOM .OR. MAXIMUM_RANDOM) tcc(i)=1.-tcc(i)
	543	c
[1337]	544	ENDDO ! loop over i
	545
	546	!! Convective and Stratiform Cloud Droplet Effective Radius (REFFCLWC REFFCLWS)
	547	DO i = 1, klon
	548	DO k = 1, klev
[1712]	549	! Weight to be used for outputs: eau_liquide*couverture nuageuse
	550	lcc3dcon(i,k) =rnebcon(i,k)phase3d(i,k)clwcon(i,k) ! eau liquide convective
	551	lcc3dstra(i,k)=pclc(i,k)pqlwp(i,k)phase3d(i,k)
	552	lcc3dstra(i,k)=lcc3dstra(i,k)-lcc3dcon(i,k) ! eau liquide stratiforme
	553	lcc3dstra(i,k)=MAX(lcc3dstra(i,k),0.0)
	554	! Compute cloud droplet radius as above in meter
	555	radius=1.1((pqlwp(i,k)pplay(i,k)/(RD * T(i,k)))
	556	& /(4./3RPI1000.cdnc(i,k)) )*(1./3.)
	557	radius=MAX(radius, 5.e-6)
[1337]	558	! Convective Cloud Droplet Effective Radius (REFFCLWC) : variable 3D
[1712]	559	reffclwc(i,k)=radius
	560	reffclwc(i,k)=reffclwc(i,k)*lcc3dcon(i,k)
[1337]	561	! Stratiform Cloud Droplet Effective Radius (REFFCLWS) : variable 3D
[1712]	562	reffclws(i,k)=radius
	563	reffclws(i,k)=reffclws(i,k)*lcc3dstra(i,k)
[1337]	564	ENDDO !klev
	565	ENDDO !klon
	566	c
[1712]	567	c Column Integrated Cloud Droplet Number (CLDNVI) : variable 2D
	568	c
[1337]	569	DO i = 1, klon
	570	cldnvi(i)=0.
	571	lcc_integrat(i)=0.
	572	height(i)=0.
	573	DO k = 1, klev
	574	cldnvi(i)=cldnvi(i)+cdnc(i,k)lcc3d(i,k)dh(i,k)
	575	lcc_integrat(i)=lcc_integrat(i)+lcc3d(i,k)*dh(i,k)
	576	height(i)=height(i)+dh(i,k)
	577	ENDDO ! klev
	578	lcc_integrat(i)=lcc_integrat(i)/height(i)
	579	IF (lcc_integrat(i) .LE. 1.0E-03) THEN
	580	cldnvi(i)=cldnvi(i)*lcc(i)/seuil_neb
	581	ELSE
	582	cldnvi(i)=cldnvi(i)*lcc(i)/lcc_integrat(i)
	583	ENDIF
	584	ENDDO ! klon
	585
	586	DO i = 1, klon
	587	DO k = 1, klev
[1712]	588	IF (scdnc(i,k) .LE. 0.0) scdnc(i,k)=0.0
	589	IF (reffclws(i,k) .LE. 0.0) reffclws(i,k)=0.0
	590	IF (reffclwc(i,k) .LE. 0.0) reffclwc(i,k)=0.0
	591	IF (lcc3d(i,k) .LE. 0.0) lcc3d(i,k)=0.0
	592	IF (lcc3dcon(i,k) .LE. 0.0) lcc3dcon(i,k)=0.0
[1337]	593	IF (lcc3dstra(i,k) .LE. 0.0) lcc3dstra(i,k)=0.0
	594	ENDDO
[1712]	595	IF (reffclwtop(i) .LE. 0.0) reffclwtop(i)=0.0
	596	IF (cldncl(i) .LE. 0.0) cldncl(i)=0.0
	597	IF (cldnvi(i) .LE. 0.0) cldnvi(i)=0.0
	598	IF (lcc(i) .LE. 0.0) lcc(i)=0.0
[1337]	599	ENDDO
	600	c
[1712]	601	ENDIF !ok_cdnc
	602	c
[524]	603	RETURN
[1712]	604	c
[524]	605	END

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