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newmicro.F @ 1907

Last change on this file since 1907 was 1907, checked in by lguez, 10 years ago

Added a copyright property to every file of the distribution, except
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Name of program: LMDZ
Creation date: 1984
Version: LMDZ5
License: CeCILL version 2
Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
See the license file in the root directory

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Property copyright set to
Name of program: LMDZ
Creation date: 1984
Version: LMDZ5
License: CeCILL version 2
Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
See the license file in the root directory
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1	! $Id: newmicro.F 1907 2013-11-26 13:10:46Z lguez $
2
3
4	!
5	SUBROUTINE newmicro (ok_cdnc, bl95_b0, bl95_b1,
6	. paprs, pplay,
7	. t, pqlwp, pclc, pcltau, pclemi,
8	. pch, pcl, pcm, pct, pctlwp,
9	. xflwp, xfiwp, xflwc, xfiwc,
10	. mass_solu_aero, mass_solu_aero_pi,
11	. pcldtaupi, re, fl, reliq, reice)
12	c
13	USE dimphy
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
18	IMPLICIT none
19	c======================================================================
20	c Auteur(s): Z.X. Li (LMD/CNRS) date: 19930910
21	c O. Boucher (LMD/CNRS) mise a jour en 201212
22	c Objet: Calculer epaisseur optique et emmissivite des nuages
23	c======================================================================
24	c Arguments:
25	c ok_cdnc-input-L-flag pour calculer les rayons a partir des aerosols
26	c
27	c t-------input-R-temperature
28	c pqlwp---input-R-eau liquide nuageuse dans l'atmosphere dans la partie nuageuse (kg/kg)
29	c pclc----input-R-couverture nuageuse pour le rayonnement (0 a 1)
30	c mass_solu_aero-----input-R-total mass concentration for all soluble aerosols[ug/m^3]
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 ( -"- )
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
40	c
41	c pcltau--output-R-epaisseur optique des nuages
42	c pclemi--output-R-emissivite des nuages (0 a 1)
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
49	c======================================================================
50	C
51	#include "YOMCST.h"
52	#include "nuage.h"
53	#include "radepsi.h"
54	#include "radopt.h"
55
56	c choix de l'hypothese de recouvrememnt nuageuse
57	LOGICAL RANDOM, MAXIMUM_RANDOM, MAXIMUM
58	PARAMETER (RANDOM=.FALSE., MAXIMUM_RANDOM=.TRUE., MAXIMUM=.FALSE.)
59	c
60	LOGICAL, SAVE :: FIRST=.TRUE.
61	!$OMP THREADPRIVATE(FIRST)
62	INTEGER flag_max
63	c
64	c threshold PARAMETERs
65	REAL thres_tau,thres_neb
66	PARAMETER (thres_tau=0.3, thres_neb=0.001)
67	c
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)
73	REAL t(klon,klev)
74	REAL pclc(klon,klev)
75	REAL pqlwp(klon,klev)
76	REAL pcltau(klon,klev)
77	REAL pclemi(klon,klev)
78	REAL pcldtaupi(klon, klev)
79	c
80	REAL pct(klon)
81	REAL pcl(klon)
82	REAL pcm(klon)
83	REAL pch(klon)
84	REAL pctlwp(klon)
85	c
86	LOGICAL lo
87	c
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
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
96	PARAMETER (prmhc = 440.100., prlmc = 680.100.)
97	C
98	INTEGER i, k
99	REAL xflwp(klon), xfiwp(klon)
100	REAL xflwc(klon,klev), xfiwc(klon,klev)
101	c
102	REAL radius
103	c
104	REAL coef_froi, coef_chau
105	PARAMETER (coef_chau=0.13, coef_froi=0.09)
106	c
107	REAL seuil_neb
108	PARAMETER (seuil_neb=0.001)
109	c
110	INTEGER nexpo ! exponentiel pour glace/eau
111	PARAMETER (nexpo=6)
112	c PARAMETER (nexpo=1)
113
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
119	cjq for the aerosol indirect effect
120	cjq introduced by Johannes Quaas (quaas@lmd.jussieu.fr), 27/11/2003
121	cjq
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)
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
131	LOGICAL ok_cdnc
132	REAL bl95_b0, bl95_b1 ! Parameter in B&L 95-Formula
133
134	cjq-end
135	cIM cf. CR:parametres supplementaires
136	REAL zclear(klon)
137	REAL zcloud(klon)
138	REAL zcloudh(klon)
139	REAL zcloudm(klon)
140	REAL zcloudl(klon)
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
147	REAL d_rei_dt
148
149	! Abderrahmane oct 2009
150	Real reliq(klon, klev), reice(klon, klev)
151
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
163	c
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	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
167	c
168	c Calculer l'epaisseur optique et l'emmissivite des nuages
169	c IM inversion des DO
170	c
171	xflwp = 0.d0
172	xfiwp = 0.d0
173	xflwc = 0.d0
174	xfiwc = 0.d0
175	c
176	reliq=0.
177	reice=0.
178	c
179	DO k = 1, klev
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)
192	ENDDO
193	ENDDO
194
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
200	DO i = 1, klon
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
208	& log(MAX(mass_solu_aero(i,k),1.e-4))/log(10.))*1.e6 !-m-3
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
213	& log(MAX(mass_solu_aero_pi(i,k),1.e-4))/log(10.))
214	& *1.e6 !-m-3
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
273
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)
293	rel = 0.
294	rei = 0.
295	pclc(i,k) = 0.0
296	pcltau(i,k) = 0.0
297	pclemi(i,k) = 0.0
298	c
299	ELSE
300	c
301	c -- liquid/ice cloud water paths:
302
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
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 )
337	& + zfiwp_var * (3.448e-03 + 2.431/rei)
338	c
339	c -- cloud infrared emissivity:
340	c [the broadband infrared absorption coefficient is PARAMETERized
341	c as a function of the effective cld droplet radius]
342	c Ebert and Curry (1992) formula as used by Kiehl & Zender (1995):
343	c
344	k_ice = k_ice0 + 1.0/rei
345	c
346	pclemi(i,k) = 1.0
347	& - EXP( -coef_chauzflwp_var - DFk_ice*zfiwp_var)
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
363	DO k = 1, klev
364	DO i = 1, klon
365	pcldtaupi(i,k)=pcltau(i,k)
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
373	c
374	DO i=1,klon
375	zclear(i)=1.
376	zcloud(i)=0.
377	zcloudh(i)=0.
378	zcloudm(i)=0.
379	zcloudl(i)=0.
380	pch(i)=1.0
381	pcm(i) = 1.0
382	pcl(i) = 1.0
383	pctlwp(i) = 0.0
384	ENDDO
385	C
386	c--calculation of liquid water path
387	c
388	DO k = klev, 1, -1
389	DO i = 1, klon
390	pctlwp(i) = pctlwp(i)+ pqlwp(i,k)*rhodz(i,k)
391	ENDDO
392	ENDDO
393	c
394	c--calculation of cloud properties with cloud overlap
395	c
396	IF (NOVLP.EQ.1) THEN
397	DO k = klev, 1, -1
398	DO i = 1, klon
399	zclear(i)=zclear(i)*(1.-MAX(pclc(i,k),zcloud(i)))
400	& /(1.-MIN(REAL(zcloud(i), kind=8),1.-ZEPSEC))
401	pct(i)=1.-zclear(i)
402	IF (paprs(i,k).LT.prmhc) THEN
403	pch(i) = pch(i)*(1.-MAX(pclc(i,k),zcloudh(i)))
404	& /(1.-MIN(REAL(zcloudh(i), kind=8),1.-ZEPSEC))
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)))
409	& /(1.-MIN(REAL(zcloudm(i), kind=8),1.-ZEPSEC))
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)))
413	& /(1.-MIN(REAL(zcloudl(i), kind=8),1.-ZEPSEC))
414	zcloudl(i)=pclc(i,k)
415	endif
416	zcloud(i)=pclc(i,k)
417	ENDDO
418	ENDDO
419	ELSE IF (NOVLP.EQ.2) THEN
420	DO k = klev, 1, -1
421	DO i = 1, klon
422	zcloud(i)=MAX(pclc(i,k),zcloud(i))
423	pct(i)=zcloud(i)
424	IF (paprs(i,k).LT.prmhc) THEN
425	pch(i) = MIN(pclc(i,k),pch(i))
426	ELSE IF (paprs(i,k).GE.prmhc .AND.
427	& paprs(i,k).LT.prlmc) THEN
428	pcm(i) = MIN(pclc(i,k),pcm(i))
429	ELSE IF (paprs(i,k).GE.prlmc) THEN
430	pcl(i) = MIN(pclc(i,k),pcl(i))
431	endif
432	ENDDO
433	ENDDO
434	ELSE IF (NOVLP.EQ.3) THEN
435	DO k = klev, 1, -1
436	DO i = 1, klon
437	zclear(i)=zclear(i)*(1.-pclc(i,k))
438	pct(i)=1-zclear(i)
439	IF (paprs(i,k).LT.prmhc) THEN
440	pch(i) = pch(i)*(1.0-pclc(i,k))
441	ELSE IF (paprs(i,k).GE.prmhc .AND.
442	& paprs(i,k).LT.prlmc) THEN
443	pcm(i) = pcm(i)*(1.0-pclc(i,k))
444	ELSE IF (paprs(i,k).GE.prlmc) THEN
445	pcl(i) = pcl(i)*(1.0-pclc(i,k))
446	endif
447	ENDDO
448	ENDDO
449	ENDIF
450	C
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
456	c
457	c ========================================================
458	c DIAGNOSTICS CALCULATION FOR CMIP5 PROTOCOL
459	c ========================================================
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
469	DO k = 1, klev
470	DO i = 1, klon
471	phase3d(i,k)=1-zfice(i,k)
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
480	c
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
488	c
489	DO i=1,klon
490	DO k=klev-1,1,-1 !From TOA down
491	c
492	! Test, if the cloud optical depth exceeds the necessary
493	! threshold:
494
495	IF (pcltau(i,k).GT.thres_tau
496	. .AND. pclc(i,k).GT.thres_neb) THEN
497
498	IF (MAXIMUM) THEN
499	IF (FIRST) THEN
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
507	IF (RANDOM) THEN
508	IF (FIRST) THEN
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
516	IF (MAXIMUM_RANDOM) THEN
517	IF (FIRST) THEN
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)
528	reffclwtop(i) = reffclwtop(i) + rad_chaud(i,k) *
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
541	c
542	IF (RANDOM .OR. MAXIMUM_RANDOM) tcc(i)=1.-tcc(i)
543	c
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
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)
558	! Convective Cloud Droplet Effective Radius (REFFCLWC) : variable 3D
559	reffclwc(i,k)=radius
560	reffclwc(i,k)=reffclwc(i,k)*lcc3dcon(i,k)
561	! Stratiform Cloud Droplet Effective Radius (REFFCLWS) : variable 3D
562	reffclws(i,k)=radius
563	reffclws(i,k)=reffclws(i,k)*lcc3dstra(i,k)
564	ENDDO !klev
565	ENDDO !klon
566	c
567	c Column Integrated Cloud Droplet Number (CLDNVI) : variable 2D
568	c
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
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
593	IF (lcc3dstra(i,k) .LE. 0.0) lcc3dstra(i,k)=0.0
594	ENDDO
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
599	ENDDO
600	c
601	ENDIF !ok_cdnc
602	c
603	RETURN
604	c
605	END

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