source: LMDZ6/branches/cirrus/libf/phylmd/lmdz_cloudth.F90 @ 5185

Last change on this file since 5185 was 4910, checked in by evignon, 8 months ago

debut du chantier de refonte de cloudth_mpc

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1MODULE lmdz_cloudth
2
3
4  IMPLICIT NONE
5
6CONTAINS
7
8       SUBROUTINE cloudth(ngrid,klev,ind2,  &
9     &           ztv,po,zqta,fraca, &
10     &           qcloud,ctot,zpspsk,paprs,pplay,ztla,zthl, &
11     &           ratqs,zqs,t, &
12     &           cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
13
14
15      use lmdz_cloudth_ini, only: iflag_cloudth_vert,iflag_ratqs
16
17      IMPLICIT NONE
18
19
20!===========================================================================
21! Auteur : Arnaud Octavio Jam (LMD/CNRS)
22! Date : 25 Mai 2010
23! Objet : calcule les valeurs de qc et rneb dans les thermiques
24!===========================================================================
25
26
27      INCLUDE "YOMCST.h"
28      INCLUDE "YOETHF.h"
29      INCLUDE "FCTTRE.h"
30
31      INTEGER itap,ind1,ind2
32      INTEGER ngrid,klev,klon,l,ig
33      real, dimension(ngrid,klev), intent(out) :: cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv
34     
35      REAL ztv(ngrid,klev)
36      REAL po(ngrid)
37      REAL zqenv(ngrid)   
38      REAL zqta(ngrid,klev)
39         
40      REAL fraca(ngrid,klev+1)
41      REAL zpspsk(ngrid,klev)
42      REAL paprs(ngrid,klev+1)
43      REAL pplay(ngrid,klev)
44      REAL ztla(ngrid,klev)
45      REAL zthl(ngrid,klev)
46
47      REAL zqsatth(ngrid,klev)
48      REAL zqsatenv(ngrid,klev)
49     
50     
51      REAL sigma1(ngrid,klev)
52      REAL sigma2(ngrid,klev)
53      REAL qlth(ngrid,klev)
54      REAL qlenv(ngrid,klev)
55      REAL qltot(ngrid,klev)
56      REAL cth(ngrid,klev) 
57      REAL cenv(ngrid,klev)   
58      REAL ctot(ngrid,klev)
59      REAL rneb(ngrid,klev)
60      REAL t(ngrid,klev)
61      REAL qsatmmussig1,qsatmmussig2,sqrt2pi,pi
62      REAL rdd,cppd,Lv
63      REAL alth,alenv,ath,aenv
64      REAL sth,senv,sigma1s,sigma2s,xth,xenv
65      REAL Tbef,zdelta,qsatbef,zcor
66      REAL qlbef 
67      REAL ratqs(ngrid,klev) ! determine la largeur de distribution de vapeur
68     
69      REAL zpdf_sig(ngrid),zpdf_k(ngrid),zpdf_delta(ngrid)
70      REAL zpdf_a(ngrid),zpdf_b(ngrid),zpdf_e1(ngrid),zpdf_e2(ngrid)
71      REAL zqs(ngrid), qcloud(ngrid)
72      REAL erf
73
74
75
76
77!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
78! Gestion de deux versions de cloudth
79!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
80
81      IF (iflag_cloudth_vert.GE.1) THEN
82      CALL cloudth_vert(ngrid,klev,ind2,  &
83     &           ztv,po,zqta,fraca, &
84     &           qcloud,ctot,zpspsk,paprs,pplay,ztla,zthl, &
85     &           ratqs,zqs,t)
86      RETURN
87      ENDIF
88!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
89
90
91!-------------------------------------------------------------------------------
92! Initialisation des variables r?elles
93!-------------------------------------------------------------------------------
94      sigma1(:,:)=0.
95      sigma2(:,:)=0.
96      qlth(:,:)=0.
97      qlenv(:,:)=0. 
98      qltot(:,:)=0.
99      rneb(:,:)=0.
100      qcloud(:)=0.
101      cth(:,:)=0.
102      cenv(:,:)=0.
103      ctot(:,:)=0.
104      qsatmmussig1=0.
105      qsatmmussig2=0.
106      rdd=287.04
107      cppd=1005.7
108      pi=3.14159
109      Lv=2.5e6
110      sqrt2pi=sqrt(2.*pi)
111
112
113
114!-------------------------------------------------------------------------------
115! Calcul de la fraction du thermique et des ?cart-types des distributions
116!-------------------------------------------------------------------------------                 
117      do ind1=1,ngrid
118
119      if ((ztv(ind1,1).gt.ztv(ind1,2)).and.(fraca(ind1,ind2).gt.1.e-10)) then
120
121      zqenv(ind1)=(po(ind1)-fraca(ind1,ind2)*zqta(ind1,ind2))/(1.-fraca(ind1,ind2))
122
123
124!      zqenv(ind1)=po(ind1)
125      Tbef=zthl(ind1,ind2)*zpspsk(ind1,ind2)
126      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
127      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
128      qsatbef=MIN(0.5,qsatbef)
129      zcor=1./(1.-retv*qsatbef)
130      qsatbef=qsatbef*zcor
131      zqsatenv(ind1,ind2)=qsatbef
132
133
134
135
136      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2) 
137      aenv=1./(1.+(alenv*Lv/cppd))
138      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))
139
140
141
142
143      Tbef=ztla(ind1,ind2)*zpspsk(ind1,ind2)
144      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
145      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
146      qsatbef=MIN(0.5,qsatbef)
147      zcor=1./(1.-retv*qsatbef)
148      qsatbef=qsatbef*zcor
149      zqsatth(ind1,ind2)=qsatbef
150           
151      alth=(0.622*Lv*zqsatth(ind1,ind2))/(rdd*ztla(ind1,ind2)**2)   
152      ath=1./(1.+(alth*Lv/cppd))
153      sth=ath*(zqta(ind1,ind2)-zqsatth(ind1,ind2))
154     
155     
156
157!------------------------------------------------------------------------------
158! Calcul des ?cart-types pour s
159!------------------------------------------------------------------------------
160
161!      sigma1s=(1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+ratqs(ind1,ind2)*po(ind1)
162!      sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.02)**0.4+0.002*zqta(ind1,ind2)
163!       if (paprs(ind1,ind2).gt.90000) then
164!       ratqs(ind1,ind2)=0.002
165!       else
166!       ratqs(ind1,ind2)=0.002+0.0*(90000-paprs(ind1,ind2))/20000
167!       endif
168       sigma1s=(1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+0.002*po(ind1)
169       sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.01)**0.4+0.002*zqta(ind1,ind2)
170!       sigma1s=ratqs(ind1,ind2)*po(ind1)
171!      sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.02)**0.4+0.00003 
172 
173!------------------------------------------------------------------------------
174! Calcul de l'eau condens?e et de la couverture nuageuse
175!------------------------------------------------------------------------------
176      sqrt2pi=sqrt(2.*pi)
177      xth=sth/(sqrt(2.)*sigma2s)
178      xenv=senv/(sqrt(2.)*sigma1s)
179      cth(ind1,ind2)=0.5*(1.+1.*erf(xth))
180      cenv(ind1,ind2)=0.5*(1.+1.*erf(xenv))
181      ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)   
182
183      qlth(ind1,ind2)=sigma2s*((exp(-1.*xth**2)/sqrt2pi)+xth*sqrt(2.)*cth(ind1,ind2))
184      qlenv(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt(2.)*cenv(ind1,ind2))   
185      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
186
187!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
188      if (ctot(ind1,ind2).lt.1.e-10) then
189      ctot(ind1,ind2)=0.
190      qcloud(ind1)=zqsatenv(ind1,ind2)
191
192      else   
193               
194      ctot(ind1,ind2)=ctot(ind1,ind2)
195      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqs(ind1)
196
197      endif                           
198     
199         
200!     print*,sth,sigma2s,qlth(ind1,ind2),ctot(ind1,ind2),qltot(ind1,ind2),'verif'
201
202
203      else  ! gaussienne environnement seule
204     
205      zqenv(ind1)=po(ind1)
206      Tbef=t(ind1,ind2)
207      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
208      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
209      qsatbef=MIN(0.5,qsatbef)
210      zcor=1./(1.-retv*qsatbef)
211      qsatbef=qsatbef*zcor
212      zqsatenv(ind1,ind2)=qsatbef
213     
214
215!      qlbef=Max(po(ind1)-zqsatenv(ind1,ind2),0.)
216      zthl(ind1,ind2)=t(ind1,ind2)*(101325/paprs(ind1,ind2))**(rdd/cppd)
217      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2) 
218      aenv=1./(1.+(alenv*Lv/cppd))
219      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))
220     
221
222      sigma1s=ratqs(ind1,ind2)*zqenv(ind1)
223
224      sqrt2pi=sqrt(2.*pi)
225      xenv=senv/(sqrt(2.)*sigma1s)
226      ctot(ind1,ind2)=0.5*(1.+1.*erf(xenv))
227      qltot(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt(2.)*cenv(ind1,ind2))
228     
229      if (ctot(ind1,ind2).lt.1.e-3) then
230      ctot(ind1,ind2)=0.
231      qcloud(ind1)=zqsatenv(ind1,ind2)
232
233      else   
234               
235      ctot(ind1,ind2)=ctot(ind1,ind2)
236      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqsatenv(ind1,ind2)
237
238      endif   
239 
240 
241 
242 
243 
244 
245      endif   
246      enddo
247     
248      return
249!     end
250END SUBROUTINE cloudth
251
252
253
254!===========================================================================
255     SUBROUTINE cloudth_vert(ngrid,klev,ind2,  &
256     &           ztv,po,zqta,fraca, &
257     &           qcloud,ctot,zpspsk,paprs,pplay,ztla,zthl, &
258     &           ratqs,zqs,t)
259
260!===========================================================================
261! Auteur : Arnaud Octavio Jam (LMD/CNRS)
262! Date : 25 Mai 2010
263! Objet : calcule les valeurs de qc et rneb dans les thermiques
264!===========================================================================
265
266
267      use lmdz_cloudth_ini, only: iflag_cloudth_vert, vert_alpha
268
269      IMPLICIT NONE
270
271      INCLUDE "YOMCST.h"
272      INCLUDE "YOETHF.h"
273      INCLUDE "FCTTRE.h"
274     
275      INTEGER itap,ind1,ind2
276      INTEGER ngrid,klev,klon,l,ig
277     
278      REAL ztv(ngrid,klev)
279      REAL po(ngrid)
280      REAL zqenv(ngrid)   
281      REAL zqta(ngrid,klev)
282         
283      REAL fraca(ngrid,klev+1)
284      REAL zpspsk(ngrid,klev)
285      REAL paprs(ngrid,klev+1)
286      REAL pplay(ngrid,klev)
287      REAL ztla(ngrid,klev)
288      REAL zthl(ngrid,klev)
289
290      REAL zqsatth(ngrid,klev)
291      REAL zqsatenv(ngrid,klev)
292     
293     
294      REAL sigma1(ngrid,klev)                                                         
295      REAL sigma2(ngrid,klev)
296      REAL qlth(ngrid,klev)
297      REAL qlenv(ngrid,klev)
298      REAL qltot(ngrid,klev)
299      REAL cth(ngrid,klev) 
300      REAL cenv(ngrid,klev)   
301      REAL ctot(ngrid,klev)
302      REAL rneb(ngrid,klev)
303      REAL t(ngrid,klev)                                                                 
304      REAL qsatmmussig1,qsatmmussig2,sqrt2pi,pi
305      REAL rdd,cppd,Lv,sqrt2,sqrtpi
306      REAL alth,alenv,ath,aenv
307      REAL sth,senv,sigma1s,sigma2s,xth,xenv
308      REAL xth1,xth2,xenv1,xenv2,deltasth, deltasenv
309      REAL IntJ,IntI1,IntI2,IntI3,coeffqlenv,coeffqlth
310      REAL Tbef,zdelta,qsatbef,zcor
311      REAL qlbef 
312      REAL ratqs(ngrid,klev) ! determine la largeur de distribution de vapeur
313      ! Change the width of the PDF used for vertical subgrid scale heterogeneity
314      ! (J Jouhaud, JL Dufresne, JB Madeleine)
315     
316      REAL zpdf_sig(ngrid),zpdf_k(ngrid),zpdf_delta(ngrid)
317      REAL zpdf_a(ngrid),zpdf_b(ngrid),zpdf_e1(ngrid),zpdf_e2(ngrid)
318      REAL zqs(ngrid), qcloud(ngrid)
319      REAL erf
320
321!------------------------------------------------------------------------------
322! Initialisation des variables r?elles
323!------------------------------------------------------------------------------
324      sigma1(:,:)=0.
325      sigma2(:,:)=0.
326      qlth(:,:)=0.
327      qlenv(:,:)=0. 
328      qltot(:,:)=0.
329      rneb(:,:)=0.
330      qcloud(:)=0.
331      cth(:,:)=0.
332      cenv(:,:)=0.
333      ctot(:,:)=0.
334      qsatmmussig1=0.
335      qsatmmussig2=0.
336      rdd=287.04
337      cppd=1005.7
338      pi=3.14159
339      Lv=2.5e6
340      sqrt2pi=sqrt(2.*pi)
341      sqrt2=sqrt(2.)
342      sqrtpi=sqrt(pi)
343
344!-------------------------------------------------------------------------------
345! Calcul de la fraction du thermique et des ?cart-types des distributions
346!-------------------------------------------------------------------------------                 
347      do ind1=1,ngrid
348
349      if ((ztv(ind1,1).gt.ztv(ind1,2)).and.(fraca(ind1,ind2).gt.1.e-10)) then
350
351      zqenv(ind1)=(po(ind1)-fraca(ind1,ind2)*zqta(ind1,ind2))/(1.-fraca(ind1,ind2))
352
353
354!      zqenv(ind1)=po(ind1)
355      Tbef=zthl(ind1,ind2)*zpspsk(ind1,ind2)
356      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
357      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
358      qsatbef=MIN(0.5,qsatbef)
359      zcor=1./(1.-retv*qsatbef)
360      qsatbef=qsatbef*zcor
361      zqsatenv(ind1,ind2)=qsatbef
362
363
364
365
366      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2) 
367      aenv=1./(1.+(alenv*Lv/cppd))
368      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))
369
370
371
372
373      Tbef=ztla(ind1,ind2)*zpspsk(ind1,ind2)
374      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
375      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
376      qsatbef=MIN(0.5,qsatbef)
377      zcor=1./(1.-retv*qsatbef)
378      qsatbef=qsatbef*zcor
379      zqsatth(ind1,ind2)=qsatbef
380           
381      alth=(0.622*Lv*zqsatth(ind1,ind2))/(rdd*ztla(ind1,ind2)**2)   
382      ath=1./(1.+(alth*Lv/cppd))
383      sth=ath*(zqta(ind1,ind2)-zqsatth(ind1,ind2))
384     
385     
386
387!------------------------------------------------------------------------------
388! Calcul des ?cart-types pour s
389!------------------------------------------------------------------------------
390
391      sigma1s=(0.92**0.5)*(fraca(ind1,ind2)**0.5)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+ratqs(ind1,ind2)*po(ind1)
392      sigma2s=0.09*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.02)**0.5+0.002*zqta(ind1,ind2)
393!       if (paprs(ind1,ind2).gt.90000) then
394!       ratqs(ind1,ind2)=0.002
395!       else
396!       ratqs(ind1,ind2)=0.002+0.0*(90000-paprs(ind1,ind2))/20000
397!       endif
398!       sigma1s=(1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+0.002*po(ind1)
399!       sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.01)**0.4+0.002*zqta(ind1,ind2)
400!       sigma1s=ratqs(ind1,ind2)*po(ind1)
401!      sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.02)**0.4+0.00003 
402 
403!------------------------------------------------------------------------------
404! Calcul de l'eau condens?e et de la couverture nuageuse
405!------------------------------------------------------------------------------
406      sqrt2pi=sqrt(2.*pi)
407      xth=sth/(sqrt(2.)*sigma2s)
408      xenv=senv/(sqrt(2.)*sigma1s)
409      cth(ind1,ind2)=0.5*(1.+1.*erf(xth))
410      cenv(ind1,ind2)=0.5*(1.+1.*erf(xenv))
411      ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)   
412
413      qlth(ind1,ind2)=sigma2s*((exp(-1.*xth**2)/sqrt2pi)+xth*sqrt(2.)*cth(ind1,ind2))
414      qlenv(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt(2.)*cenv(ind1,ind2))   
415      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
416     
417       IF (iflag_cloudth_vert == 1) THEN
418!-------------------------------------------------------------------------------
419!  Version 2: Modification selon J.-Louis. On condense ?? partir de qsat-ratqs
420!-------------------------------------------------------------------------------
421!      deltasenv=aenv*ratqs(ind1,ind2)*po(ind1)
422!      deltasth=ath*ratqs(ind1,ind2)*zqta(ind1,ind2)
423      deltasenv=aenv*ratqs(ind1,ind2)*zqsatenv(ind1,ind2)
424      deltasth=ath*ratqs(ind1,ind2)*zqsatth(ind1,ind2)
425!      deltasenv=aenv*0.01*po(ind1)
426!     deltasth=ath*0.01*zqta(ind1,ind2)   
427      xenv1=(senv-deltasenv)/(sqrt(2.)*sigma1s)
428      xenv2=(senv+deltasenv)/(sqrt(2.)*sigma1s)
429      xth1=(sth-deltasth)/(sqrt(2.)*sigma2s)
430      xth2=(sth+deltasth)/(sqrt(2.)*sigma2s)
431      coeffqlenv=(sigma1s)**2/(2*sqrtpi*deltasenv)
432      coeffqlth=(sigma2s)**2/(2*sqrtpi*deltasth)
433     
434      cth(ind1,ind2)=0.5*(1.+1.*erf(xth2))
435      cenv(ind1,ind2)=0.5*(1.+1.*erf(xenv2))
436      ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)   
437
438      IntJ=sigma1s*(exp(-1.*xenv1**2)/sqrt2pi)+0.5*senv*(1+erf(xenv1))
439      IntI1=coeffqlenv*0.5*(0.5*sqrtpi*(erf(xenv2)-erf(xenv1))+xenv1*exp(-1.*xenv1**2)-xenv2*exp(-1.*xenv2**2))
440      IntI2=coeffqlenv*xenv2*(exp(-1.*xenv2**2)-exp(-1.*xenv1**2))
441      IntI3=coeffqlenv*0.5*sqrtpi*xenv2**2*(erf(xenv2)-erf(xenv1))
442
443      qlenv(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
444!      qlenv(ind1,ind2)=IntJ
445!      print*, qlenv(ind1,ind2),'VERIF EAU'
446
447
448      IntJ=sigma2s*(exp(-1.*xth1**2)/sqrt2pi)+0.5*sth*(1+erf(xth1))
449!      IntI1=coeffqlth*((0.5*xth1-xth2)*exp(-1.*xth1**2)+0.5*xth2*exp(-1.*xth2**2))
450!      IntI2=coeffqlth*0.5*sqrtpi*(0.5+xth2**2)*(erf(xth2)-erf(xth1))
451      IntI1=coeffqlth*0.5*(0.5*sqrtpi*(erf(xth2)-erf(xth1))+xth1*exp(-1.*xth1**2)-xth2*exp(-1.*xth2**2))
452      IntI2=coeffqlth*xth2*(exp(-1.*xth2**2)-exp(-1.*xth1**2))
453      IntI3=coeffqlth*0.5*sqrtpi*xth2**2*(erf(xth2)-erf(xth1))
454      qlth(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
455!      qlth(ind1,ind2)=IntJ
456!      print*, IntJ,IntI1,IntI2,IntI3,qlth(ind1,ind2),'VERIF EAU2'
457      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
458
459      ELSE IF (iflag_cloudth_vert == 2) THEN
460
461!-------------------------------------------------------------------------------
462!  Version 3: Modification Jean Jouhaud. On condense a partir de -delta s
463!-------------------------------------------------------------------------------
464!      deltasenv=aenv*ratqs(ind1,ind2)*po(ind1)
465!      deltasth=ath*ratqs(ind1,ind2)*zqta(ind1,ind2)
466!      deltasenv=aenv*ratqs(ind1,ind2)*zqsatenv(ind1,ind2)
467!      deltasth=ath*ratqs(ind1,ind2)*zqsatth(ind1,ind2)
468      deltasenv=aenv*vert_alpha*sigma1s
469      deltasth=ath*vert_alpha*sigma2s
470     
471      xenv1=-(senv+deltasenv)/(sqrt(2.)*sigma1s)
472      xenv2=-(senv-deltasenv)/(sqrt(2.)*sigma1s)
473      xth1=-(sth+deltasth)/(sqrt(2.)*sigma2s)
474      xth2=-(sth-deltasth)/(sqrt(2.)*sigma2s)
475!     coeffqlenv=(sigma1s)**2/(2*sqrtpi*deltasenv)
476!     coeffqlth=(sigma2s)**2/(2*sqrtpi*deltasth)
477     
478      cth(ind1,ind2)=0.5*(1.-1.*erf(xth1))
479      cenv(ind1,ind2)=0.5*(1.-1.*erf(xenv1))
480      ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)
481
482      IntJ=0.5*senv*(1-erf(xenv2))+(sigma1s/sqrt2pi)*exp(-1.*xenv2**2)
483      IntI1=(((senv+deltasenv)**2+(sigma1s)**2)/(8*deltasenv))*(erf(xenv2)-erf(xenv1))
484      IntI2=(sigma1s**2/(4*deltasenv*sqrtpi))*(xenv1*exp(-1.*xenv1**2)-xenv2*exp(-1.*xenv2**2))
485      IntI3=((sqrt2*sigma1s*(senv+deltasenv))/(4*sqrtpi*deltasenv))*(exp(-1.*xenv1**2)-exp(-1.*xenv2**2))
486
487!      IntI1=0.5*(0.5*sqrtpi*(erf(xenv2)-erf(xenv1))+xenv1*exp(-1.*xenv1**2)-xenv2*exp(-1.*xenv2**2))
488!      IntI2=xenv2*(exp(-1.*xenv2**2)-exp(-1.*xenv1**2))
489!      IntI3=0.5*sqrtpi*xenv2**2*(erf(xenv2)-erf(xenv1))
490
491      qlenv(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
492!      qlenv(ind1,ind2)=IntJ
493!      print*, qlenv(ind1,ind2),'VERIF EAU'
494
495      IntJ=0.5*sth*(1-erf(xth2))+(sigma2s/sqrt2pi)*exp(-1.*xth2**2)
496      IntI1=(((sth+deltasth)**2+(sigma2s)**2)/(8*deltasth))*(erf(xth2)-erf(xth1))
497      IntI2=(sigma2s**2/(4*deltasth*sqrtpi))*(xth1*exp(-1.*xth1**2)-xth2*exp(-1.*xth2**2))
498      IntI3=((sqrt2*sigma2s*(sth+deltasth))/(4*sqrtpi*deltasth))*(exp(-1.*xth1**2)-exp(-1.*xth2**2))
499     
500      qlth(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
501!      qlth(ind1,ind2)=IntJ
502!      print*, IntJ,IntI1,IntI2,IntI3,qlth(ind1,ind2),'VERIF EAU2'
503      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
504     
505
506
507
508      ENDIF ! of if (iflag_cloudth_vert==1 or 2)
509
510!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
511
512      if (cenv(ind1,ind2).lt.1.e-10.or.cth(ind1,ind2).lt.1.e-10) then
513      ctot(ind1,ind2)=0.
514      qcloud(ind1)=zqsatenv(ind1,ind2)
515
516      else
517               
518      ctot(ind1,ind2)=ctot(ind1,ind2)
519      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqs(ind1)
520!      qcloud(ind1)=fraca(ind1,ind2)*qlth(ind1,ind2)/cth(ind1,ind2) &
521!    &             +(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)/cenv(ind1,ind2)+zqs(ind1)
522
523      endif 
524                       
525     
526         
527!     print*,sth,sigma2s,qlth(ind1,ind2),ctot(ind1,ind2),qltot(ind1,ind2),'verif'
528
529
530      else  ! gaussienne environnement seule
531     
532      zqenv(ind1)=po(ind1)
533      Tbef=t(ind1,ind2)
534      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
535      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
536      qsatbef=MIN(0.5,qsatbef)
537      zcor=1./(1.-retv*qsatbef)
538      qsatbef=qsatbef*zcor
539      zqsatenv(ind1,ind2)=qsatbef
540     
541
542!      qlbef=Max(po(ind1)-zqsatenv(ind1,ind2),0.)
543      zthl(ind1,ind2)=t(ind1,ind2)*(101325/paprs(ind1,ind2))**(rdd/cppd)
544      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2) 
545      aenv=1./(1.+(alenv*Lv/cppd))
546      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))
547     
548
549      sigma1s=ratqs(ind1,ind2)*zqenv(ind1)
550
551      sqrt2pi=sqrt(2.*pi)
552      xenv=senv/(sqrt(2.)*sigma1s)
553      ctot(ind1,ind2)=0.5*(1.+1.*erf(xenv))
554      qltot(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt(2.)*cenv(ind1,ind2))
555     
556      if (ctot(ind1,ind2).lt.1.e-3) then
557      ctot(ind1,ind2)=0.
558      qcloud(ind1)=zqsatenv(ind1,ind2)
559
560      else   
561               
562      ctot(ind1,ind2)=ctot(ind1,ind2)
563      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqsatenv(ind1,ind2)
564
565      endif   
566 
567 
568 
569 
570 
571 
572      endif   
573      enddo
574     
575      return
576!     end
577END SUBROUTINE cloudth_vert
578
579
580
581
582       SUBROUTINE cloudth_v3(ngrid,klev,ind2,  &
583     &           ztv,po,zqta,fraca, &
584     &           qcloud,ctot,ctot_vol,zpspsk,paprs,pplay,ztla,zthl, &
585     &           ratqs,zqs,t, &
586     &           cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
587
588      use lmdz_cloudth_ini, only: iflag_cloudth_vert
589
590      IMPLICIT NONE
591
592
593!===========================================================================
594! Author : Arnaud Octavio Jam (LMD/CNRS)
595! Date : 25 Mai 2010
596! Objet : calcule les valeurs de qc et rneb dans les thermiques
597!===========================================================================
598
599
600      INCLUDE "YOMCST.h"
601      INCLUDE "YOETHF.h"
602      INCLUDE "FCTTRE.h"
603
604      integer, intent(in) :: ind2
605      integer, intent(in) :: ngrid,klev
606     
607      real, dimension(ngrid,klev), intent(in) :: ztv
608      real, dimension(ngrid), intent(in) :: po
609      real, dimension(ngrid,klev), intent(in) :: zqta
610      real, dimension(ngrid,klev+1), intent(in) :: fraca
611      real, dimension(ngrid), intent(out) :: qcloud
612      real, dimension(ngrid,klev), intent(out) :: ctot
613      real, dimension(ngrid,klev), intent(out) :: ctot_vol
614      real, dimension(ngrid,klev), intent(in) :: zpspsk
615      real, dimension(ngrid,klev+1), intent(in) :: paprs
616      real, dimension(ngrid,klev), intent(in) :: pplay
617      real, dimension(ngrid,klev), intent(in) :: ztla
618      real, dimension(ngrid,klev), intent(inout) :: zthl
619      real, dimension(ngrid,klev), intent(in) :: ratqs
620      real, dimension(ngrid), intent(in) :: zqs
621      real, dimension(ngrid,klev), intent(in) :: t
622      real, dimension(ngrid,klev), intent(out) :: cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv
623
624
625      REAL zqenv(ngrid)   
626      REAL zqsatth(ngrid,klev)
627      REAL zqsatenv(ngrid,klev)
628     
629      REAL sigma1(ngrid,klev)                                                         
630      REAL sigma2(ngrid,klev)
631      REAL qlth(ngrid,klev)
632      REAL qlenv(ngrid,klev)
633      REAL qltot(ngrid,klev)
634      REAL cth(ngrid,klev)
635      REAL cenv(ngrid,klev)   
636      REAL cth_vol(ngrid,klev)
637      REAL cenv_vol(ngrid,klev)
638      REAL rneb(ngrid,klev)     
639      REAL qsatmmussig1,qsatmmussig2,sqrt2pi,sqrt2,sqrtpi,pi
640      REAL rdd,cppd,Lv
641      REAL alth,alenv,ath,aenv
642      REAL sth,senv,sigma1s,sigma2s,xth,xenv, exp_xenv1, exp_xenv2,exp_xth1,exp_xth2
643      REAL inverse_rho,beta,a_Brooks,b_Brooks,A_Maj_Brooks,Dx_Brooks,f_Brooks
644      REAL Tbef,zdelta,qsatbef,zcor
645      REAL qlbef 
646      REAL zpdf_sig(ngrid),zpdf_k(ngrid),zpdf_delta(ngrid)
647      REAL zpdf_a(ngrid),zpdf_b(ngrid),zpdf_e1(ngrid),zpdf_e2(ngrid)
648      REAL erf
649
650
651      INTEGER :: ind1,l, ig
652
653      IF (iflag_cloudth_vert.GE.1) THEN
654      CALL cloudth_vert_v3(ngrid,klev,ind2,  &
655     &           ztv,po,zqta,fraca, &
656     &           qcloud,ctot,ctot_vol,zpspsk,paprs,pplay,ztla,zthl, &
657     &           ratqs,zqs,t, &
658     &           cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
659      RETURN
660      ENDIF
661!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
662
663
664!-------------------------------------------------------------------------------
665! Initialisation des variables r?elles
666!-------------------------------------------------------------------------------
667      sigma1(:,:)=0.
668      sigma2(:,:)=0.
669      qlth(:,:)=0.
670      qlenv(:,:)=0. 
671      qltot(:,:)=0.
672      rneb(:,:)=0.
673      qcloud(:)=0.
674      cth(:,:)=0.
675      cenv(:,:)=0.
676      ctot(:,:)=0.
677      cth_vol(:,:)=0.
678      cenv_vol(:,:)=0.
679      ctot_vol(:,:)=0.
680      qsatmmussig1=0.
681      qsatmmussig2=0.
682      rdd=287.04
683      cppd=1005.7
684      pi=3.14159
685      Lv=2.5e6
686      sqrt2pi=sqrt(2.*pi)
687      sqrt2=sqrt(2.)
688      sqrtpi=sqrt(pi)
689
690
691!-------------------------------------------------------------------------------
692! Cloud fraction in the thermals and standard deviation of the PDFs
693!-------------------------------------------------------------------------------                 
694      do ind1=1,ngrid
695
696      if ((ztv(ind1,1).gt.ztv(ind1,2)).and.(fraca(ind1,ind2).gt.1.e-10)) then
697
698      zqenv(ind1)=(po(ind1)-fraca(ind1,ind2)*zqta(ind1,ind2))/(1.-fraca(ind1,ind2))
699
700      Tbef=zthl(ind1,ind2)*zpspsk(ind1,ind2)
701      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
702      qsatbef= R2ES*FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
703      qsatbef=MIN(0.5,qsatbef)
704      zcor=1./(1.-retv*qsatbef)
705      qsatbef=qsatbef*zcor
706      zqsatenv(ind1,ind2)=qsatbef
707
708
709      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2)     !qsl, p84
710      aenv=1./(1.+(alenv*Lv/cppd))                                      !al, p84
711      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))                          !s, p84
712
713!po = qt de l'environnement ET des thermique
714!zqenv = qt environnement
715!zqsatenv = qsat environnement
716!zthl = Tl environnement
717
718
719      Tbef=ztla(ind1,ind2)*zpspsk(ind1,ind2)
720      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
721      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
722      qsatbef=MIN(0.5,qsatbef)
723      zcor=1./(1.-retv*qsatbef)
724      qsatbef=qsatbef*zcor
725      zqsatth(ind1,ind2)=qsatbef
726           
727      alth=(0.622*Lv*zqsatth(ind1,ind2))/(rdd*ztla(ind1,ind2)**2)       !qsl, p84
728      ath=1./(1.+(alth*Lv/cppd))                                        !al, p84
729      sth=ath*(zqta(ind1,ind2)-zqsatth(ind1,ind2))                      !s, p84
730     
731!zqta = qt thermals
732!zqsatth = qsat thermals
733!ztla = Tl thermals
734
735!------------------------------------------------------------------------------
736! s standard deviations
737!------------------------------------------------------------------------------
738
739!     tests
740!     sigma1s=(1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+0.002*po(ind1)
741!     sigma1s=(0.92*(fraca(ind1,ind2)**0.5)/(1-fraca(ind1,ind2))*(((sth-senv)**2)**0.5))+ratqs(ind1,ind2)*po(ind1)
742!     sigma2s=(0.09*(((sth-senv)**2)**0.5)/((fraca(ind1,ind2)+0.02)**0.5))+0.002*zqta(ind1,ind2)
743!     final option
744      sigma1s=(1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+ratqs(ind1,ind2)*po(ind1)
745      sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.01)**0.4+0.002*zqta(ind1,ind2)
746 
747!------------------------------------------------------------------------------
748! Condensed water and cloud cover
749!------------------------------------------------------------------------------
750      xth=sth/(sqrt2*sigma2s)
751      xenv=senv/(sqrt2*sigma1s)
752      cth(ind1,ind2)=0.5*(1.+1.*erf(xth))       !4.18 p 111, l.7 p115 & 4.20 p 119 thesis Arnaud Jam
753      cenv(ind1,ind2)=0.5*(1.+1.*erf(xenv))     !4.18 p 111, l.7 p115 & 4.20 p 119 thesis Arnaud Jam
754      ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)
755      ctot_vol(ind1,ind2)=ctot(ind1,ind2)
756
757      qlth(ind1,ind2)=sigma2s*((exp(-1.*xth**2)/sqrt2pi)+xth*sqrt2*cth(ind1,ind2))
758      qlenv(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt2*cenv(ind1,ind2))
759      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
760
761      if (ctot(ind1,ind2).lt.1.e-10) then
762      ctot(ind1,ind2)=0.
763      qcloud(ind1)=zqsatenv(ind1,ind2)
764      else
765      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqs(ind1)
766      endif
767
768      else  ! Environnement only, follow the if l.110
769     
770      zqenv(ind1)=po(ind1)
771      Tbef=t(ind1,ind2)
772      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
773      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
774      qsatbef=MIN(0.5,qsatbef)
775      zcor=1./(1.-retv*qsatbef)
776      qsatbef=qsatbef*zcor
777      zqsatenv(ind1,ind2)=qsatbef
778
779!     qlbef=Max(po(ind1)-zqsatenv(ind1,ind2),0.)
780      zthl(ind1,ind2)=t(ind1,ind2)*(101325/paprs(ind1,ind2))**(rdd/cppd)
781      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2) 
782      aenv=1./(1.+(alenv*Lv/cppd))
783      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))
784     
785      sigma1s=ratqs(ind1,ind2)*zqenv(ind1)
786
787      xenv=senv/(sqrt2*sigma1s)
788      ctot(ind1,ind2)=0.5*(1.+1.*erf(xenv))
789      ctot_vol(ind1,ind2)=ctot(ind1,ind2)
790      qltot(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt2*cenv(ind1,ind2))
791
792      if (ctot(ind1,ind2).lt.1.e-3) then
793      ctot(ind1,ind2)=0.
794      qcloud(ind1)=zqsatenv(ind1,ind2)
795      else   
796      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqsatenv(ind1,ind2)
797      endif
798
799
800      endif       ! From the separation (thermal/envrionnement) et (environnement) only, l.110 et l.183
801      enddo       ! from the loop on ngrid l.108
802      return
803!     end
804END SUBROUTINE cloudth_v3
805
806
807
808!===========================================================================
809     SUBROUTINE cloudth_vert_v3(ngrid,klev,ind2,  &
810     &           ztv,po,zqta,fraca, &
811     &           qcloud,ctot,ctot_vol,zpspsk,paprs,pplay,ztla,zthl, &
812     &           ratqs,zqs,t, &
813     &           cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
814
815!===========================================================================
816! Auteur : Arnaud Octavio Jam (LMD/CNRS)
817! Date : 25 Mai 2010
818! Objet : calcule les valeurs de qc et rneb dans les thermiques
819!===========================================================================
820
821      use lmdz_cloudth_ini, only : iflag_cloudth_vert,iflag_ratqs
822      use lmdz_cloudth_ini, only : vert_alpha,vert_alpha_th, sigma1s_factor, sigma1s_power , sigma2s_factor , sigma2s_power , cloudth_ratqsmin , iflag_cloudth_vert_noratqs
823
824      IMPLICIT NONE
825
826
827
828      INCLUDE "YOMCST.h"
829      INCLUDE "YOETHF.h"
830      INCLUDE "FCTTRE.h"
831     
832      INTEGER itap,ind1,ind2
833      INTEGER ngrid,klev,klon,l,ig
834      real, dimension(ngrid,klev), intent(out) :: cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv
835     
836      REAL ztv(ngrid,klev)
837      REAL po(ngrid)
838      REAL zqenv(ngrid)   
839      REAL zqta(ngrid,klev)
840         
841      REAL fraca(ngrid,klev+1)
842      REAL zpspsk(ngrid,klev)
843      REAL paprs(ngrid,klev+1)
844      REAL pplay(ngrid,klev)
845      REAL ztla(ngrid,klev)
846      REAL zthl(ngrid,klev)
847
848      REAL zqsatth(ngrid,klev)
849      REAL zqsatenv(ngrid,klev)
850     
851      REAL sigma1(ngrid,klev)                                                         
852      REAL sigma2(ngrid,klev)
853      REAL qlth(ngrid,klev)
854      REAL qlenv(ngrid,klev)
855      REAL qltot(ngrid,klev)
856      REAL cth(ngrid,klev)
857      REAL cenv(ngrid,klev)   
858      REAL ctot(ngrid,klev)
859      REAL cth_vol(ngrid,klev)
860      REAL cenv_vol(ngrid,klev)
861      REAL ctot_vol(ngrid,klev)
862      REAL rneb(ngrid,klev)
863      REAL t(ngrid,klev)                                                                 
864      REAL qsatmmussig1,qsatmmussig2,sqrtpi,sqrt2,sqrt2pi,pi
865      REAL rdd,cppd,Lv
866      REAL alth,alenv,ath,aenv
867      REAL sth,senv,sigma1s,sigma2s,sigma1s_fraca,sigma1s_ratqs
868      REAL inverse_rho,beta,a_Brooks,b_Brooks,A_Maj_Brooks,Dx_Brooks,f_Brooks
869      REAL xth,xenv,exp_xenv1,exp_xenv2,exp_xth1,exp_xth2
870      REAL xth1,xth2,xenv1,xenv2,deltasth, deltasenv
871      REAL IntJ,IntI1,IntI2,IntI3,IntJ_CF,IntI1_CF,IntI3_CF,coeffqlenv,coeffqlth
872      REAL Tbef,zdelta,qsatbef,zcor
873      REAL qlbef 
874      REAL ratqs(ngrid,klev) ! determine la largeur de distribution de vapeur
875      ! Change the width of the PDF used for vertical subgrid scale heterogeneity
876      ! (J Jouhaud, JL Dufresne, JB Madeleine)
877
878      REAL zpdf_sig(ngrid),zpdf_k(ngrid),zpdf_delta(ngrid)
879      REAL zpdf_a(ngrid),zpdf_b(ngrid),zpdf_e1(ngrid),zpdf_e2(ngrid)
880      REAL zqs(ngrid), qcloud(ngrid)
881      REAL erf
882
883      REAL rhodz(ngrid,klev)
884      REAL zrho(ngrid,klev)
885      REAL dz(ngrid,klev)
886
887      DO ind1 = 1, ngrid
888        !Layer calculation
889        rhodz(ind1,ind2) = (paprs(ind1,ind2)-paprs(ind1,ind2+1))/rg !kg/m2
890        zrho(ind1,ind2) = pplay(ind1,ind2)/t(ind1,ind2)/rd !kg/m3
891        dz(ind1,ind2) = rhodz(ind1,ind2)/zrho(ind1,ind2) !m : epaisseur de la couche en metre
892      END DO
893
894!------------------------------------------------------------------------------
895! Initialize
896!------------------------------------------------------------------------------
897
898      sigma1(:,:)=0.
899      sigma2(:,:)=0.
900      qlth(:,:)=0.
901      qlenv(:,:)=0. 
902      qltot(:,:)=0.
903      rneb(:,:)=0.
904      qcloud(:)=0.
905      cth(:,:)=0.
906      cenv(:,:)=0.
907      ctot(:,:)=0.
908      cth_vol(:,:)=0.
909      cenv_vol(:,:)=0.
910      ctot_vol(:,:)=0.
911      qsatmmussig1=0.
912      qsatmmussig2=0.
913      rdd=287.04
914      cppd=1005.7
915      pi=3.14159
916      Lv=2.5e6
917      sqrt2pi=sqrt(2.*pi)
918      sqrt2=sqrt(2.)
919      sqrtpi=sqrt(pi)
920
921
922
923!-------------------------------------------------------------------------------
924! Calcul de la fraction du thermique et des ecart-types des distributions
925!-------------------------------------------------------------------------------                 
926      do ind1=1,ngrid
927
928      if ((ztv(ind1,1).gt.ztv(ind1,2)).and.(fraca(ind1,ind2).gt.1.e-10)) then !Thermal and environnement
929
930      zqenv(ind1)=(po(ind1)-fraca(ind1,ind2)*zqta(ind1,ind2))/(1.-fraca(ind1,ind2)) !qt = a*qtth + (1-a)*qtenv
931
932
933      Tbef=zthl(ind1,ind2)*zpspsk(ind1,ind2)
934      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
935      qsatbef= R2ES*FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
936      qsatbef=MIN(0.5,qsatbef)
937      zcor=1./(1.-retv*qsatbef)
938      qsatbef=qsatbef*zcor
939      zqsatenv(ind1,ind2)=qsatbef
940
941
942      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2)     !qsl, p84
943      aenv=1./(1.+(alenv*Lv/cppd))                                      !al, p84
944      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))                          !s, p84
945
946!zqenv = qt environnement
947!zqsatenv = qsat environnement
948!zthl = Tl environnement
949
950
951      Tbef=ztla(ind1,ind2)*zpspsk(ind1,ind2)
952      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
953      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
954      qsatbef=MIN(0.5,qsatbef)
955      zcor=1./(1.-retv*qsatbef)
956      qsatbef=qsatbef*zcor
957      zqsatth(ind1,ind2)=qsatbef
958           
959      alth=(0.622*Lv*zqsatth(ind1,ind2))/(rdd*ztla(ind1,ind2)**2)       !qsl, p84
960      ath=1./(1.+(alth*Lv/cppd))                                        !al, p84
961      sth=ath*(zqta(ind1,ind2)-zqsatth(ind1,ind2))                      !s, p84
962     
963     
964!zqta = qt thermals
965!zqsatth = qsat thermals
966!ztla = Tl thermals
967!------------------------------------------------------------------------------
968! s standard deviation
969!------------------------------------------------------------------------------
970
971      sigma1s_fraca = (sigma1s_factor**0.5)*(fraca(ind1,ind2)**sigma1s_power) / &
972     &                (1-fraca(ind1,ind2))*((sth-senv)**2)**0.5
973!     sigma1s_fraca = (1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5
974      IF (cloudth_ratqsmin>0.) THEN
975         sigma1s_ratqs = cloudth_ratqsmin*po(ind1)
976      ELSE
977         sigma1s_ratqs = ratqs(ind1,ind2)*po(ind1)
978      ENDIF
979      sigma1s = sigma1s_fraca + sigma1s_ratqs
980      IF (iflag_ratqs.eq.11) then
981         sigma1s = ratqs(ind1,ind2)*po(ind1)*aenv
982      ENDIF
983      sigma2s=(sigma2s_factor*(((sth-senv)**2)**0.5)/((fraca(ind1,ind2)+0.02)**sigma2s_power))+0.002*zqta(ind1,ind2)
984!      tests
985!      sigma1s=(0.92**0.5)*(fraca(ind1,ind2)**0.5)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+ratqs(ind1,ind2)*po(ind1)
986!      sigma1s=(0.92*(fraca(ind1,ind2)**0.5)/(1-fraca(ind1,ind2))*(((sth-senv)**2)**0.5))+0.002*zqenv(ind1)
987!      sigma2s=0.09*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.02)**0.5+0.002*zqta(ind1,ind2)
988!      sigma2s=(0.09*(((sth-senv)**2)**0.5)/((fraca(ind1,ind2)+0.02)**0.5))+ratqs(ind1,ind2)*zqta(ind1,ind2)
989!       if (paprs(ind1,ind2).gt.90000) then
990!       ratqs(ind1,ind2)=0.002
991!       else
992!       ratqs(ind1,ind2)=0.002+0.0*(90000-paprs(ind1,ind2))/20000
993!       endif
994!       sigma1s=(1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+0.002*po(ind1)
995!       sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.01)**0.4+0.002*zqta(ind1,ind2)
996!       sigma1s=ratqs(ind1,ind2)*po(ind1)
997!      sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.02)**0.4+0.00003 
998 
999       IF (iflag_cloudth_vert == 1) THEN
1000!-------------------------------------------------------------------------------
1001!  Version 2: Modification from Arnaud Jam according to JL Dufrense. Condensate from qsat-ratqs
1002!-------------------------------------------------------------------------------
1003
1004      deltasenv=aenv*ratqs(ind1,ind2)*zqsatenv(ind1,ind2)
1005      deltasth=ath*ratqs(ind1,ind2)*zqsatth(ind1,ind2)
1006
1007      xenv1=(senv-deltasenv)/(sqrt(2.)*sigma1s)
1008      xenv2=(senv+deltasenv)/(sqrt(2.)*sigma1s)
1009      xth1=(sth-deltasth)/(sqrt(2.)*sigma2s)
1010      xth2=(sth+deltasth)/(sqrt(2.)*sigma2s)
1011      coeffqlenv=(sigma1s)**2/(2*sqrtpi*deltasenv)
1012      coeffqlth=(sigma2s)**2/(2*sqrtpi*deltasth)
1013     
1014      cth(ind1,ind2)=0.5*(1.+1.*erf(xth2))
1015      cenv(ind1,ind2)=0.5*(1.+1.*erf(xenv2))
1016      ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)   
1017
1018      ! Environment
1019      IntJ=sigma1s*(exp(-1.*xenv1**2)/sqrt2pi)+0.5*senv*(1+erf(xenv1))
1020      IntI1=coeffqlenv*0.5*(0.5*sqrtpi*(erf(xenv2)-erf(xenv1))+xenv1*exp(-1.*xenv1**2)-xenv2*exp(-1.*xenv2**2))
1021      IntI2=coeffqlenv*xenv2*(exp(-1.*xenv2**2)-exp(-1.*xenv1**2))
1022      IntI3=coeffqlenv*0.5*sqrtpi*xenv2**2*(erf(xenv2)-erf(xenv1))
1023
1024      qlenv(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
1025
1026      ! Thermal
1027      IntJ=sigma2s*(exp(-1.*xth1**2)/sqrt2pi)+0.5*sth*(1+erf(xth1))
1028      IntI1=coeffqlth*0.5*(0.5*sqrtpi*(erf(xth2)-erf(xth1))+xth1*exp(-1.*xth1**2)-xth2*exp(-1.*xth2**2))
1029      IntI2=coeffqlth*xth2*(exp(-1.*xth2**2)-exp(-1.*xth1**2))
1030      IntI3=coeffqlth*0.5*sqrtpi*xth2**2*(erf(xth2)-erf(xth1))
1031      qlth(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
1032      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
1033
1034      ELSE IF (iflag_cloudth_vert >= 3) THEN
1035      IF (iflag_cloudth_vert < 5) THEN
1036!-------------------------------------------------------------------------------
1037!  Version 3: Changes by J. Jouhaud; condensation for q > -delta s
1038!-------------------------------------------------------------------------------
1039!      deltasenv=aenv*ratqs(ind1,ind2)*po(ind1)
1040!      deltasth=ath*ratqs(ind1,ind2)*zqta(ind1,ind2)
1041!      deltasenv=aenv*ratqs(ind1,ind2)*zqsatenv(ind1,ind2)
1042!      deltasth=ath*ratqs(ind1,ind2)*zqsatth(ind1,ind2)
1043      IF (iflag_cloudth_vert == 3) THEN
1044        deltasenv=aenv*vert_alpha*sigma1s
1045        deltasth=ath*vert_alpha_th*sigma2s
1046      ELSE IF (iflag_cloudth_vert == 4) THEN
1047        IF (iflag_cloudth_vert_noratqs == 1) THEN
1048          deltasenv=vert_alpha*max(sigma1s_fraca,1e-10)
1049          deltasth=vert_alpha_th*sigma2s
1050        ELSE
1051          deltasenv=vert_alpha*sigma1s
1052          deltasth=vert_alpha_th*sigma2s
1053        ENDIF
1054      ENDIF
1055     
1056      xenv1=-(senv+deltasenv)/(sqrt(2.)*sigma1s)
1057      xenv2=-(senv-deltasenv)/(sqrt(2.)*sigma1s)
1058      exp_xenv1 = exp(-1.*xenv1**2)
1059      exp_xenv2 = exp(-1.*xenv2**2)
1060      xth1=-(sth+deltasth)/(sqrt(2.)*sigma2s)
1061      xth2=-(sth-deltasth)/(sqrt(2.)*sigma2s)
1062      exp_xth1 = exp(-1.*xth1**2)
1063      exp_xth2 = exp(-1.*xth2**2)
1064     
1065      !CF_surfacique
1066      cth(ind1,ind2)=0.5*(1.-1.*erf(xth1))
1067      cenv(ind1,ind2)=0.5*(1.-1.*erf(xenv1))
1068      ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)
1069
1070
1071      !CF_volumique & eau condense
1072      !environnement
1073      IntJ=0.5*senv*(1-erf(xenv2))+(sigma1s/sqrt2pi)*exp_xenv2
1074      IntJ_CF=0.5*(1.-1.*erf(xenv2))
1075      if (deltasenv .lt. 1.e-10) then
1076      qlenv(ind1,ind2)=IntJ
1077      cenv_vol(ind1,ind2)=IntJ_CF
1078      else
1079      IntI1=(((senv+deltasenv)**2+(sigma1s)**2)/(8*deltasenv))*(erf(xenv2)-erf(xenv1))
1080      IntI2=(sigma1s**2/(4*deltasenv*sqrtpi))*(xenv1*exp_xenv1-xenv2*exp_xenv2)
1081      IntI3=((sqrt2*sigma1s*(senv+deltasenv))/(4*sqrtpi*deltasenv))*(exp_xenv1-exp_xenv2)
1082      IntI1_CF=((senv+deltasenv)*(erf(xenv2)-erf(xenv1)))/(4*deltasenv)
1083      IntI3_CF=(sqrt2*sigma1s*(exp_xenv1-exp_xenv2))/(4*sqrtpi*deltasenv)
1084      qlenv(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
1085      cenv_vol(ind1,ind2)=IntJ_CF+IntI1_CF+IntI3_CF
1086      endif
1087
1088      !thermique
1089      IntJ=0.5*sth*(1-erf(xth2))+(sigma2s/sqrt2pi)*exp_xth2
1090      IntJ_CF=0.5*(1.-1.*erf(xth2))
1091      if (deltasth .lt. 1.e-10) then
1092      qlth(ind1,ind2)=IntJ
1093      cth_vol(ind1,ind2)=IntJ_CF
1094      else
1095      IntI1=(((sth+deltasth)**2+(sigma2s)**2)/(8*deltasth))*(erf(xth2)-erf(xth1))
1096      IntI2=(sigma2s**2/(4*deltasth*sqrtpi))*(xth1*exp_xth1-xth2*exp_xth2)
1097      IntI3=((sqrt2*sigma2s*(sth+deltasth))/(4*sqrtpi*deltasth))*(exp_xth1-exp_xth2)
1098      IntI1_CF=((sth+deltasth)*(erf(xth2)-erf(xth1)))/(4*deltasth)
1099      IntI3_CF=(sqrt2*sigma2s*(exp_xth1-exp_xth2))/(4*sqrtpi*deltasth)
1100      qlth(ind1,ind2)=IntJ+IntI1+IntI2+IntI3
1101      cth_vol(ind1,ind2)=IntJ_CF+IntI1_CF+IntI3_CF
1102      endif
1103
1104      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
1105      ctot_vol(ind1,ind2)=fraca(ind1,ind2)*cth_vol(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv_vol(ind1,ind2)
1106
1107      ELSE IF (iflag_cloudth_vert == 5) THEN
1108         sigma1s=(0.71794+0.000498239*dz(ind1,ind2))*(fraca(ind1,ind2)**0.5) &
1109              /(1-fraca(ind1,ind2))*(((sth-senv)**2)**0.5) &
1110              +ratqs(ind1,ind2)*po(ind1) !Environment
1111      sigma2s=(0.03218+0.000092655*dz(ind1,ind2))/((fraca(ind1,ind2)+0.02)**0.5)*(((sth-senv)**2)**0.5)+0.002*zqta(ind1,ind2)                   !Thermals
1112      !sigma1s=(1.1**0.5)*(fraca(ind1,ind2)**0.6)/(1-fraca(ind1,ind2))*((sth-senv)**2)**0.5+0.002*po(ind1)
1113      !sigma2s=0.11*((sth-senv)**2)**0.5/(fraca(ind1,ind2)+0.01)**0.4+0.002*zqta(ind1,ind2)
1114      xth=sth/(sqrt(2.)*sigma2s)
1115      xenv=senv/(sqrt(2.)*sigma1s)
1116
1117      !Volumique
1118      cth_vol(ind1,ind2)=0.5*(1.+1.*erf(xth))
1119      cenv_vol(ind1,ind2)=0.5*(1.+1.*erf(xenv))
1120      ctot_vol(ind1,ind2)=fraca(ind1,ind2)*cth_vol(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv_vol(ind1,ind2)
1121      !print *,'jeanjean_CV=',ctot_vol(ind1,ind2)
1122
1123      qlth(ind1,ind2)=sigma2s*((exp(-1.*xth**2)/sqrt2pi)+xth*sqrt(2.)*cth_vol(ind1,ind2))
1124      qlenv(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt(2.)*cenv_vol(ind1,ind2)) 
1125      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
1126
1127      !Surfacique
1128      !Neggers
1129      !beta=0.0044
1130      !inverse_rho=1.+beta*dz(ind1,ind2)
1131      !print *,'jeanjean : beta=',beta
1132      !cth(ind1,ind2)=cth_vol(ind1,ind2)*inverse_rho
1133      !cenv(ind1,ind2)=cenv_vol(ind1,ind2)*inverse_rho
1134      !ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)
1135
1136      !Brooks
1137      a_Brooks=0.6694
1138      b_Brooks=0.1882
1139      A_Maj_Brooks=0.1635 !-- sans shear
1140      !A_Maj_Brooks=0.17   !-- ARM LES
1141      !A_Maj_Brooks=0.18   !-- RICO LES
1142      !A_Maj_Brooks=0.19   !-- BOMEX LES
1143      Dx_Brooks=200000.
1144      f_Brooks=A_Maj_Brooks*(dz(ind1,ind2)**(a_Brooks))*(Dx_Brooks**(-b_Brooks))
1145      !print *,'jeanjean_f=',f_Brooks
1146
1147      cth(ind1,ind2)=1./(1.+exp(-1.*f_Brooks)*((1./max(1.e-15,min(cth_vol(ind1,ind2),1.)))- 1.))
1148      cenv(ind1,ind2)=1./(1.+exp(-1.*f_Brooks)*((1./max(1.e-15,min(cenv_vol(ind1,ind2),1.)))- 1.))
1149      ctot(ind1,ind2)=1./(1.+exp(-1.*f_Brooks)*((1./max(1.e-15,min(ctot_vol(ind1,ind2),1.)))- 1.))
1150      !print *,'JJ_ctot_1',ctot(ind1,ind2)
1151
1152
1153
1154
1155
1156      ENDIF ! of if (iflag_cloudth_vert<5)
1157      ENDIF ! of if (iflag_cloudth_vert==1 or 3 or 4)
1158
1159!      if (ctot(ind1,ind2).lt.1.e-10) then
1160      if (cenv(ind1,ind2).lt.1.e-10.or.cth(ind1,ind2).lt.1.e-10) then
1161      ctot(ind1,ind2)=0.
1162      ctot_vol(ind1,ind2)=0.
1163      qcloud(ind1)=zqsatenv(ind1,ind2)
1164
1165      else
1166               
1167      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqs(ind1)
1168!      qcloud(ind1)=fraca(ind1,ind2)*qlth(ind1,ind2)/cth(ind1,ind2) &
1169!    &             +(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)/cenv(ind1,ind2)+zqs(ind1)
1170
1171      endif 
1172
1173      else  ! gaussienne environnement seule
1174     
1175
1176      zqenv(ind1)=po(ind1)
1177      Tbef=t(ind1,ind2)
1178      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
1179      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
1180      qsatbef=MIN(0.5,qsatbef)
1181      zcor=1./(1.-retv*qsatbef)
1182      qsatbef=qsatbef*zcor
1183      zqsatenv(ind1,ind2)=qsatbef
1184     
1185
1186!      qlbef=Max(po(ind1)-zqsatenv(ind1,ind2),0.)
1187      zthl(ind1,ind2)=t(ind1,ind2)*(101325/paprs(ind1,ind2))**(rdd/cppd)
1188      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2)
1189      aenv=1./(1.+(alenv*Lv/cppd))
1190      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))
1191      sth=0.
1192     
1193
1194      sigma1s=ratqs(ind1,ind2)*zqenv(ind1)
1195      sigma2s=0.
1196
1197      sqrt2pi=sqrt(2.*pi)
1198      xenv=senv/(sqrt(2.)*sigma1s)
1199      ctot(ind1,ind2)=0.5*(1.+1.*erf(xenv))
1200      ctot_vol(ind1,ind2)=ctot(ind1,ind2)
1201      qltot(ind1,ind2)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt(2.)*cenv(ind1,ind2))
1202     
1203      if (ctot(ind1,ind2).lt.1.e-3) then
1204      ctot(ind1,ind2)=0.
1205      qcloud(ind1)=zqsatenv(ind1,ind2)
1206
1207      else   
1208               
1209!      ctot(ind1,ind2)=ctot(ind1,ind2)
1210      qcloud(ind1)=qltot(ind1,ind2)/ctot(ind1,ind2)+zqsatenv(ind1,ind2)
1211
1212      endif 
1213 
1214
1215
1216
1217      endif       ! From the separation (thermal/envrionnement) et (environnement) only, l.335 et l.492
1218      ! Outputs used to check the PDFs
1219      cloudth_senv(ind1,ind2) = senv
1220      cloudth_sth(ind1,ind2) = sth
1221      cloudth_sigmaenv(ind1,ind2) = sigma1s
1222      cloudth_sigmath(ind1,ind2) = sigma2s
1223
1224      enddo       ! from the loop on ngrid l.333
1225      return
1226!     end
1227END SUBROUTINE cloudth_vert_v3
1228!
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240       SUBROUTINE cloudth_v6(ngrid,klev,ind2,  &
1241     &           ztv,po,zqta,fraca, &
1242     &           qcloud,ctot_surf,ctot_vol,zpspsk,paprs,pplay,ztla,zthl, &
1243     &           ratqs,zqs,T, &
1244     &           cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
1245
1246      use lmdz_cloudth_ini, only: iflag_cloudth_vert
1247
1248      IMPLICIT NONE
1249
1250
1251      INCLUDE "YOMCST.h"
1252      INCLUDE "YOETHF.h"
1253      INCLUDE "FCTTRE.h"
1254
1255
1256        !Domain variables
1257      INTEGER ngrid !indice Max lat-lon
1258      INTEGER klev  !indice Max alt
1259      real, dimension(ngrid,klev), intent(out) :: cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv
1260      INTEGER ind1  !indice in [1:ngrid]
1261      INTEGER ind2  !indice in [1:klev]
1262        !thermal plume fraction
1263      REAL fraca(ngrid,klev+1)   !thermal plumes fraction in the gridbox
1264        !temperatures
1265      REAL T(ngrid,klev)       !temperature
1266      REAL zpspsk(ngrid,klev)  !factor (p/p0)**kappa (used for potential variables)
1267      REAL ztv(ngrid,klev)     !potential temperature (voir thermcell_env.F90)
1268      REAL ztla(ngrid,klev)    !liquid temperature in the thermals (Tl_th)
1269      REAL zthl(ngrid,klev)    !liquid temperature in the environment (Tl_env)
1270        !pressure
1271      REAL paprs(ngrid,klev+1)   !pressure at the interface of levels
1272      REAL pplay(ngrid,klev)     !pressure at the middle of the level
1273        !humidity
1274      REAL ratqs(ngrid,klev)   !width of the total water subgrid-scale distribution
1275      REAL po(ngrid)           !total water (qt)
1276      REAL zqenv(ngrid)        !total water in the environment (qt_env)
1277      REAL zqta(ngrid,klev)    !total water in the thermals (qt_th)
1278      REAL zqsatth(ngrid,klev)   !water saturation level in the thermals (q_sat_th)
1279      REAL zqsatenv(ngrid,klev)  !water saturation level in the environment (q_sat_env)
1280      REAL qlth(ngrid,klev)    !condensed water in the thermals
1281      REAL qlenv(ngrid,klev)   !condensed water in the environment
1282      REAL qltot(ngrid,klev)   !condensed water in the gridbox
1283        !cloud fractions
1284      REAL cth_vol(ngrid,klev)   !cloud fraction by volume in the thermals
1285      REAL cenv_vol(ngrid,klev)  !cloud fraction by volume in the environment
1286      REAL ctot_vol(ngrid,klev)  !cloud fraction by volume in the gridbox
1287      REAL cth_surf(ngrid,klev)  !cloud fraction by surface in the thermals
1288      REAL cenv_surf(ngrid,klev) !cloud fraction by surface in the environment 
1289      REAL ctot_surf(ngrid,klev) !cloud fraction by surface in the gridbox
1290        !PDF of saturation deficit variables
1291      REAL rdd,cppd,Lv
1292      REAL Tbef,zdelta,qsatbef,zcor
1293      REAL alth,alenv,ath,aenv
1294      REAL sth,senv              !saturation deficits in the thermals and environment
1295      REAL sigma_env,sigma_th    !standard deviations of the biGaussian PDF
1296        !cloud fraction variables
1297      REAL xth,xenv
1298      REAL inverse_rho,beta                                  !Neggers et al. (2011) method
1299      REAL a_Brooks,b_Brooks,A_Maj_Brooks,Dx_Brooks,f_Brooks !Brooks et al. (2005) method
1300        !Incloud total water variables
1301      REAL zqs(ngrid)    !q_sat
1302      REAL qcloud(ngrid) !eau totale dans le nuage
1303        !Some arithmetic variables
1304      REAL erf,pi,sqrt2,sqrt2pi
1305        !Depth of the layer
1306      REAL dz(ngrid,klev)    !epaisseur de la couche en metre
1307      REAL rhodz(ngrid,klev)
1308      REAL zrho(ngrid,klev)
1309      DO ind1 = 1, ngrid
1310        rhodz(ind1,ind2) = (paprs(ind1,ind2)-paprs(ind1,ind2+1))/rg ![kg/m2]
1311        zrho(ind1,ind2) = pplay(ind1,ind2)/T(ind1,ind2)/rd          ![kg/m3]
1312        dz(ind1,ind2) = rhodz(ind1,ind2)/zrho(ind1,ind2)            ![m]
1313      END DO
1314
1315!------------------------------------------------------------------------------
1316! Initialization
1317!------------------------------------------------------------------------------
1318      qlth(:,:)=0.
1319      qlenv(:,:)=0. 
1320      qltot(:,:)=0.
1321      cth_vol(:,:)=0.
1322      cenv_vol(:,:)=0.
1323      ctot_vol(:,:)=0.
1324      cth_surf(:,:)=0.
1325      cenv_surf(:,:)=0.
1326      ctot_surf(:,:)=0.
1327      qcloud(:)=0.
1328      rdd=287.04
1329      cppd=1005.7
1330      pi=3.14159
1331      Lv=2.5e6
1332      sqrt2=sqrt(2.)
1333      sqrt2pi=sqrt(2.*pi)
1334
1335
1336      DO ind1=1,ngrid
1337!-------------------------------------------------------------------------------
1338!Both thermal and environment in the gridbox
1339!-------------------------------------------------------------------------------
1340      IF ((ztv(ind1,1).gt.ztv(ind1,2)).and.(fraca(ind1,ind2).gt.1.e-10)) THEN
1341        !--------------------------------------------
1342        !calcul de qsat_env
1343        !--------------------------------------------
1344      Tbef=zthl(ind1,ind2)*zpspsk(ind1,ind2)
1345      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
1346      qsatbef= R2ES*FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
1347      qsatbef=MIN(0.5,qsatbef)
1348      zcor=1./(1.-retv*qsatbef)
1349      qsatbef=qsatbef*zcor
1350      zqsatenv(ind1,ind2)=qsatbef
1351        !--------------------------------------------
1352        !calcul de s_env
1353        !--------------------------------------------
1354      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2)     !qsl, p84 these Arnaud Jam
1355      aenv=1./(1.+(alenv*Lv/cppd))                                      !al, p84 these Arnaud Jam
1356      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))                          !s, p84 these Arnaud Jam
1357        !--------------------------------------------
1358        !calcul de qsat_th
1359        !--------------------------------------------
1360      Tbef=ztla(ind1,ind2)*zpspsk(ind1,ind2)
1361      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
1362      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
1363      qsatbef=MIN(0.5,qsatbef)
1364      zcor=1./(1.-retv*qsatbef)
1365      qsatbef=qsatbef*zcor
1366      zqsatth(ind1,ind2)=qsatbef
1367        !--------------------------------------------
1368        !calcul de s_th 
1369        !--------------------------------------------
1370      alth=(0.622*Lv*zqsatth(ind1,ind2))/(rdd*ztla(ind1,ind2)**2)       !qsl, p84 these Arnaud Jam
1371      ath=1./(1.+(alth*Lv/cppd))                                        !al, p84 these Arnaud Jam
1372      sth=ath*(zqta(ind1,ind2)-zqsatth(ind1,ind2))                      !s, p84 these Arnaud Jam
1373        !--------------------------------------------
1374        !calcul standard deviations bi-Gaussian PDF
1375        !--------------------------------------------
1376      sigma_th=(0.03218+0.000092655*dz(ind1,ind2))/((fraca(ind1,ind2)+0.01)**0.5)*(((sth-senv)**2)**0.5)+0.002*zqta(ind1,ind2)
1377      sigma_env=(0.71794+0.000498239*dz(ind1,ind2))*(fraca(ind1,ind2)**0.5) &
1378           /(1-fraca(ind1,ind2))*(((sth-senv)**2)**0.5) &
1379           +ratqs(ind1,ind2)*po(ind1)
1380      xth=sth/(sqrt2*sigma_th)
1381      xenv=senv/(sqrt2*sigma_env)
1382        !--------------------------------------------
1383        !Cloud fraction by volume CF_vol
1384        !--------------------------------------------
1385      cth_vol(ind1,ind2)=0.5*(1.+1.*erf(xth))
1386      cenv_vol(ind1,ind2)=0.5*(1.+1.*erf(xenv))
1387      ctot_vol(ind1,ind2)=fraca(ind1,ind2)*cth_vol(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv_vol(ind1,ind2)
1388        !--------------------------------------------
1389        !Condensed water qc
1390        !--------------------------------------------
1391      qlth(ind1,ind2)=sigma_th*((exp(-1.*xth**2)/sqrt2pi)+xth*sqrt2*cth_vol(ind1,ind2))
1392      qlenv(ind1,ind2)=sigma_env*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt2*cenv_vol(ind1,ind2)) 
1393      qltot(ind1,ind2)=fraca(ind1,ind2)*qlth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qlenv(ind1,ind2)
1394        !--------------------------------------------
1395        !Cloud fraction by surface CF_surf
1396        !--------------------------------------------
1397        !Method Neggers et al. (2011) : ok for cumulus clouds only
1398      !beta=0.0044 (Jouhaud et al.2018)
1399      !inverse_rho=1.+beta*dz(ind1,ind2)
1400      !ctot_surf(ind1,ind2)=ctot_vol(ind1,ind2)*inverse_rho
1401        !Method Brooks et al. (2005) : ok for all types of clouds
1402      a_Brooks=0.6694
1403      b_Brooks=0.1882
1404      A_Maj_Brooks=0.1635 !-- sans dependence au cisaillement de vent
1405      Dx_Brooks=200000.   !-- si l'on considere des mailles de 200km de cote
1406      f_Brooks=A_Maj_Brooks*(dz(ind1,ind2)**(a_Brooks))*(Dx_Brooks**(-b_Brooks))
1407      ctot_surf(ind1,ind2)=1./(1.+exp(-1.*f_Brooks)*((1./max(1.e-15,min(ctot_vol(ind1,ind2),1.)))- 1.))
1408        !--------------------------------------------
1409        !Incloud Condensed water qcloud
1410        !--------------------------------------------
1411      if (ctot_surf(ind1,ind2) .lt. 1.e-10) then
1412      ctot_vol(ind1,ind2)=0.
1413      ctot_surf(ind1,ind2)=0.
1414      qcloud(ind1)=zqsatenv(ind1,ind2)
1415      else
1416      qcloud(ind1)=qltot(ind1,ind2)/ctot_vol(ind1,ind2)+zqs(ind1)
1417      endif
1418
1419
1420
1421!-------------------------------------------------------------------------------
1422!Environment only in the gridbox
1423!-------------------------------------------------------------------------------
1424      ELSE
1425        !--------------------------------------------
1426        !calcul de qsat_env
1427        !--------------------------------------------
1428      Tbef=zthl(ind1,ind2)*zpspsk(ind1,ind2)
1429      zdelta=MAX(0.,SIGN(1.,RTT-Tbef))
1430      qsatbef= R2ES * FOEEW(Tbef,zdelta)/paprs(ind1,ind2)
1431      qsatbef=MIN(0.5,qsatbef)
1432      zcor=1./(1.-retv*qsatbef)
1433      qsatbef=qsatbef*zcor
1434      zqsatenv(ind1,ind2)=qsatbef
1435        !--------------------------------------------
1436        !calcul de s_env
1437        !--------------------------------------------
1438      alenv=(0.622*Lv*zqsatenv(ind1,ind2))/(rdd*zthl(ind1,ind2)**2)     !qsl, p84 these Arnaud Jam
1439      aenv=1./(1.+(alenv*Lv/cppd))                                      !al, p84 these Arnaud Jam
1440      senv=aenv*(po(ind1)-zqsatenv(ind1,ind2))                          !s, p84 these Arnaud Jam
1441        !--------------------------------------------
1442        !calcul standard deviations Gaussian PDF
1443        !--------------------------------------------
1444      zqenv(ind1)=po(ind1)
1445      sigma_env=ratqs(ind1,ind2)*zqenv(ind1)
1446      xenv=senv/(sqrt2*sigma_env)
1447        !--------------------------------------------
1448        !Cloud fraction by volume CF_vol
1449        !--------------------------------------------
1450      ctot_vol(ind1,ind2)=0.5*(1.+1.*erf(xenv))
1451        !--------------------------------------------
1452        !Condensed water qc
1453        !--------------------------------------------
1454      qltot(ind1,ind2)=sigma_env*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt2*ctot_vol(ind1,ind2))
1455        !--------------------------------------------
1456        !Cloud fraction by surface CF_surf
1457        !--------------------------------------------
1458        !Method Neggers et al. (2011) : ok for cumulus clouds only
1459      !beta=0.0044 (Jouhaud et al.2018)
1460      !inverse_rho=1.+beta*dz(ind1,ind2)
1461      !ctot_surf(ind1,ind2)=ctot_vol(ind1,ind2)*inverse_rho
1462        !Method Brooks et al. (2005) : ok for all types of clouds
1463      a_Brooks=0.6694
1464      b_Brooks=0.1882
1465      A_Maj_Brooks=0.1635 !-- sans dependence au shear
1466      Dx_Brooks=200000.
1467      f_Brooks=A_Maj_Brooks*(dz(ind1,ind2)**(a_Brooks))*(Dx_Brooks**(-b_Brooks))
1468      ctot_surf(ind1,ind2)=1./(1.+exp(-1.*f_Brooks)*((1./max(1.e-15,min(ctot_vol(ind1,ind2),1.)))- 1.))
1469        !--------------------------------------------
1470        !Incloud Condensed water qcloud
1471        !--------------------------------------------
1472      if (ctot_surf(ind1,ind2) .lt. 1.e-8) then
1473      ctot_vol(ind1,ind2)=0.
1474      ctot_surf(ind1,ind2)=0.
1475      qcloud(ind1)=zqsatenv(ind1,ind2)
1476      else
1477      qcloud(ind1)=qltot(ind1,ind2)/ctot_vol(ind1,ind2)+zqsatenv(ind1,ind2)
1478      endif
1479
1480
1481      END IF  ! From the separation (thermal/envrionnement) et (environnement only)
1482
1483      ! Outputs used to check the PDFs
1484      cloudth_senv(ind1,ind2) = senv
1485      cloudth_sth(ind1,ind2) = sth
1486      cloudth_sigmaenv(ind1,ind2) = sigma_env
1487      cloudth_sigmath(ind1,ind2) = sigma_th
1488
1489      END DO  ! From the loop on ngrid
1490      return
1491
1492END SUBROUTINE cloudth_v6
1493
1494
1495
1496
1497
1498!+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1499SUBROUTINE cloudth_mpc(klon,klev,ind2,mpc_bl_points,                        &
1500&           temp,qt,qt_th,frac_th,zpspsk,paprsup, paprsdn,play,thetal_th,   &
1501&           ratqs,qcloud,qincloud,icefrac,ctot,ctot_vol,                    &
1502&           cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
1503!+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1504! Author : Etienne Vignon (LMDZ/CNRS)
1505! Date: April 2024
1506! Date: Adapted from cloudth_vert_v3 in 2023 by Arnaud Otavio Jam
1507! IMPORTANT NOTE: we assume iflag_cloudth_vert=7
1508!+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1509
1510      use lmdz_cloudth_ini, only: iflag_cloudth_vert,iflag_ratqs
1511      use lmdz_cloudth_ini, only: C_mpc ,Ni,C_cap,Ei,d_top ,vert_alpha, vert_alpha_th ,sigma1s_factor,sigma1s_power,sigma2s_factor,sigma2s_power,cloudth_ratqsmin ,iflag_cloudth_vert_noratqs
1512      use lmdz_lscp_tools,  only: CALC_QSAT_ECMWF
1513      use lmdz_lscp_ini,    only: RTT, RG, RPI, RD, RCPD, RLVTT, RLSTT, temp_nowater, min_frac_th_cld, min_neb_th
1514
1515      IMPLICIT NONE
1516
1517
1518!------------------------------------------------------------------------------
1519! Declaration
1520!------------------------------------------------------------------------------
1521
1522! INPUT/OUTPUT
1523
1524      INTEGER, INTENT(IN)                         :: klon,klev,ind2
1525     
1526
1527      REAL, DIMENSION(klon),      INTENT(IN)      ::  temp          ! Temperature (liquid temperature) in the mesh [K] : has seen evap of precip
1528      REAL, DIMENSION(klon),      INTENT(IN)      ::  qt            ! total water specific humidity in the mesh [kg/kg]: has seen evap of precip
1529      REAL, DIMENSION(klon),      INTENT(IN)      ::  qt_th         ! total water specific humidity in thermals [kg/kg]: has not seen evap of precip
1530      REAL, DIMENSION(klon),      INTENT(IN)      ::  thetal_th     ! Liquid potential temperature in thermals [K]: has not seen the evap of precip
1531      REAL, DIMENSION(klon),      INTENT(IN)      ::  frac_th       ! Fraction of the mesh covered by thermals [0-1]
1532      REAL, DIMENSION(klon),      INTENT(IN)      ::  zpspsk        ! Exner potential
1533      REAL, DIMENSION(klon),      INTENT(IN)      ::  paprsup       ! Pressure at top layer interface [Pa]
1534      REAL, DIMENSION(klon),      INTENT(IN)      ::  paprsdn       ! Pressure at bottom layer interface [Pa]
1535      REAL, DIMENSION(klon),      INTENT(IN)      ::  play          ! Pressure of layers [Pa]
1536      REAL, DIMENSION(klon),      INTENT(IN)      ::  ratqs         ! Parameter that determines the width of the total water distrib.
1537
1538
1539      INTEGER, DIMENSION(klon,klev), INTENT(INOUT) :: mpc_bl_points  ! grid points with convective (thermals) mixed phase clouds
1540     
1541      REAL, DIMENSION(klon),      INTENT(OUT)      ::  ctot         ! Cloud fraction [0-1]
1542      REAL, DIMENSION(klon),      INTENT(OUT)      ::  ctot_vol     ! Volume cloud fraction [0-1]
1543      REAL, DIMENSION(klon),      INTENT(OUT)      ::  qcloud       ! In cloud total water content [kg/kg]
1544      REAL, DIMENSION(klon),      INTENT(OUT)      ::  qincloud     ! In cloud condensed water content [kg/kg]
1545      REAL, DIMENSION(klon),      INTENT(OUT)      ::  icefrac      ! Fraction of ice in clouds [0-1]
1546      REAL, DIMENSION(klon),      INTENT(OUT)      ::  cloudth_sth  ! mean saturation deficit in thermals
1547      REAL, DIMENSION(klon),      INTENT(OUT)      ::  cloudth_senv ! mean saturation deficit in environment
1548      REAL, DIMENSION(klon),      INTENT(OUT)      ::  cloudth_sigmath ! std of saturation deficit in thermals
1549      REAL, DIMENSION(klon),      INTENT(OUT)      ::  cloudth_sigmaenv ! std of saturation deficit in environment
1550
1551
1552! LOCAL VARIABLES
1553
1554      INTEGER itap,ind1,l,ig,iter,k
1555      INTEGER iflag_topthermals, niter
1556
1557      REAL qcth(klon)
1558      REAL qcenv(klon)
1559      REAL qctot(klon)
1560      REAL cth(klon)
1561      REAL cenv(klon)   
1562      REAL cth_vol(klon)
1563      REAL cenv_vol(klon)
1564      REAL qt_env(klon), thetal_env(klon)
1565      REAL icefracenv(klon), icefracth(klon)
1566      REAL sqrtpi,sqrt2,sqrt2pi
1567      REAL alth,alenv,ath,aenv
1568      REAL sth,senv,sigma1s,sigma2s,sigma1s_fraca,sigma1s_ratqs
1569      REAL inverse_rho,beta,a_Brooks,b_Brooks,A_Maj_Brooks,Dx_Brooks,f_Brooks
1570      REAL xth,xenv,exp_xenv1,exp_xenv2,exp_xth1,exp_xth2
1571      REAL xth1,xth2,xenv1,xenv2,deltasth, deltasenv
1572      REAL IntJ,IntI1,IntI2,IntI3,IntJ_CF,IntI1_CF,IntI3_CF,coeffqlenv,coeffqlth
1573      REAL zdelta,qsatbef,zcor
1574      REAL Tbefth(klon), Tbefenv(klon), zrho(klon), rhoth(klon)
1575      REAL qlbef
1576      REAL dqsatenv(klon), dqsatth(klon)
1577      REAL erf
1578      REAL zpdf_sig(klon),zpdf_k(klon),zpdf_delta(klon)
1579      REAL zpdf_a(klon),zpdf_b(klon),zpdf_e1(klon),zpdf_e2(klon)
1580      REAL rhodz(klon)
1581      REAL rho(klon)
1582      REAL dz(klon)
1583      REAL qslenv(klon), qslth(klon), qsienv(klon), qsith(klon) 
1584      REAL alenvl, aenvl
1585      REAL sthi, sthl, sthil, althl, athl, althi, athi, sthlc, deltasthc, sigma2sc
1586      REAL senvi, senvl, qbase, sbase, qliqth, qiceth
1587      REAL qmax, ttarget, stmp, cout, coutref, fraci
1588      REAL maxi, mini, pas
1589
1590      ! Modifty the saturation deficit PDF in thermals
1591      ! in the presence of ice crystals
1592      CHARACTER (len = 80) :: abort_message
1593      CHARACTER (len = 20) :: routname = 'cloudth_mpc'
1594
1595
1596!------------------------------------------------------------------------------
1597! Initialisation
1598!------------------------------------------------------------------------------
1599
1600
1601! Few initial checksS
1602
1603      DO k = 1,klev
1604      DO ind1 = 1, klon
1605        rhodz(ind1) = (paprsdn(ind1)-paprsup(ind1))/rg !kg/m2
1606        zrho(ind1)  = play(ind1)/temp(ind1)/rd !kg/m3
1607        dz(ind1)    = rhodz(ind1)/zrho(ind1) !m : epaisseur de la couche en metre
1608      END DO
1609      END DO
1610
1611
1612      icefracth(:)=0.
1613      icefracenv(:)=0.
1614      sqrt2pi=sqrt(2.*rpi)
1615      sqrt2=sqrt(2.)
1616      sqrtpi=sqrt(rpi)
1617      icefrac(:)=0.
1618
1619!-------------------------------------------------------------------------------
1620! Identify grid points with potential mixed-phase conditions
1621!-------------------------------------------------------------------------------
1622
1623
1624      DO ind1=1,klon
1625            IF ((temp(ind1) .LT. RTT) .AND. (temp(ind1) .GT. temp_nowater) &
1626            .AND. (ind2<=klev-2)  &
1627            .AND. (frac_th(ind1).GT.min_frac_th_cld)) THEN
1628                mpc_bl_points(ind1,ind2)=1
1629            ELSE
1630                mpc_bl_points(ind1,ind2)=0
1631            ENDIF
1632      ENDDO
1633
1634
1635!-------------------------------------------------------------------------------
1636! Thermal fraction calculation and standard deviation of the distribution
1637!------------------------------------------------------------------------------- 
1638
1639! initialisations and calculation of temperature, humidity and saturation specific humidity
1640
1641DO ind1=1,klon
1642 
1643   rhodz(ind1)   = (paprsdn(ind1)-paprsup(ind1))/rg  ! kg/m2
1644   rho(ind1)     = play(ind1)/temp(ind1)/rd          ! kg/m3
1645   dz(ind1)      = rhodz(ind1)/rho(ind1)             ! m : epaisseur de la couche en metre
1646   Tbefenv(ind1) = temp(ind1)
1647   thetal_env(ind1) = Tbefenv(ind1)/zpspsk(ind1)
1648   Tbefth(ind1)  = thetal_th(ind1)*zpspsk(ind1)
1649   rhoth(ind1)   = play(ind1)/Tbefth(ind1)/RD
1650   qt_env(ind1)  = (qt(ind1)-frac_th(ind1)*qt_th(ind1))/(1.-frac_th(ind1)) !qt = a*qtth + (1-a)*qtenv
1651
1652ENDDO
1653
1654! Calculation of saturation specific humidity
1655CALL CALC_QSAT_ECMWF(klon,Tbefenv,qt_env,play,RTT,1,.false.,qslenv,dqsatenv)
1656CALL CALC_QSAT_ECMWF(klon,Tbefenv,qt_env,play,RTT,2,.false.,qsienv,dqsatenv)
1657CALL CALC_QSAT_ECMWF(klon,Tbefth,qt_th,play,RTT,1,.false.,qslth,dqsatth)
1658
1659
1660DO ind1=1,klon
1661
1662
1663    IF (frac_th(ind1).GT.min_frac_th_cld) THEN !Thermal and environnement
1664
1665! unlike in the other cloudth routine,
1666! We consider distributions of the saturation deficit WRT liquid
1667! at positive AND negative celcius temperature
1668! subsequently, cloud fraction corresponds to the part of the pdf corresponding
1669! to superstauration with respect to liquid WHATEVER the temperature
1670
1671! Environment:
1672
1673
1674        alenv=(0.622*RLVTT*qslenv(ind1))/(rd*thetal_env(ind1)**2)     
1675        aenv=1./(1.+(alenv*RLVTT/rcpd))                             
1676        senv=aenv*(qt_env(ind1)-qslenv(ind1))                           
1677     
1678
1679! Thermals:
1680
1681
1682        alth=(0.622*RLVTT*qslth(ind1))/(rd*thetal_th(ind1)**2)       
1683        ath=1./(1.+(alth*RLVTT/rcpd))                                                         
1684        sth=ath*(qt_th(ind1)-qslth(ind1))                     
1685
1686
1687!       IF (mpc_bl_points(ind1,ind2) .EQ. 0) THEN ! No BL MPC
1688
1689
1690! Standard deviation of the distributions
1691
1692           sigma1s_fraca = (sigma1s_factor**0.5)*(frac_th(ind1)**sigma1s_power) / &
1693           &                (1-frac_th(ind1))*((sth-senv)**2)**0.5
1694
1695           IF (cloudth_ratqsmin>0.) THEN
1696             sigma1s_ratqs = cloudth_ratqsmin*qt(ind1)
1697           ELSE
1698             sigma1s_ratqs = ratqs(ind1)*qt(ind1)
1699           ENDIF
1700 
1701           sigma1s = sigma1s_fraca + sigma1s_ratqs
1702           IF (iflag_ratqs.eq.11) then
1703              sigma1s = ratqs(ind1)*qt(ind1)*aenv
1704           ENDIF
1705           sigma2s=(sigma2s_factor*(((sth-senv)**2)**0.5)/((frac_th(ind1)+0.02)**sigma2s_power))+0.002*qt_th(ind1)
1706
1707
1708           deltasenv=aenv*vert_alpha*sigma1s
1709           deltasth=ath*vert_alpha_th*sigma2s
1710
1711           xenv1=-(senv+deltasenv)/(sqrt(2.)*sigma1s)
1712           xenv2=-(senv-deltasenv)/(sqrt(2.)*sigma1s)
1713           exp_xenv1 = exp(-1.*xenv1**2)
1714           exp_xenv2 = exp(-1.*xenv2**2)
1715           xth1=-(sth+deltasth)/(sqrt(2.)*sigma2s)
1716           xth2=-(sth-deltasth)/(sqrt(2.)*sigma2s)
1717           exp_xth1 = exp(-1.*xth1**2)
1718           exp_xth2 = exp(-1.*xth2**2)
1719     
1720!surface CF
1721
1722           cth(ind1)=0.5*(1.-1.*erf(xth1))
1723           cenv(ind1)=0.5*(1.-1.*erf(xenv1))
1724           ctot(ind1)=frac_th(ind1)*cth(ind1)+(1.-1.*frac_th(ind1))*cenv(ind1)
1725
1726
1727!volume CF, condensed water and ice fraction
1728
1729            !environnement
1730
1731            IntJ=0.5*senv*(1-erf(xenv2))+(sigma1s/sqrt2pi)*exp_xenv2
1732            IntJ_CF=0.5*(1.-1.*erf(xenv2))
1733
1734            IF (deltasenv .LT. 1.e-10) THEN
1735              qcenv(ind1)=IntJ
1736              cenv_vol(ind1)=IntJ_CF
1737            ELSE
1738              IntI1=(((senv+deltasenv)**2+(sigma1s)**2)/(8*deltasenv))*(erf(xenv2)-erf(xenv1))
1739              IntI2=(sigma1s**2/(4*deltasenv*sqrtpi))*(xenv1*exp_xenv1-xenv2*exp_xenv2)
1740              IntI3=((sqrt2*sigma1s*(senv+deltasenv))/(4*sqrtpi*deltasenv))*(exp_xenv1-exp_xenv2)
1741              IntI1_CF=((senv+deltasenv)*(erf(xenv2)-erf(xenv1)))/(4*deltasenv)
1742              IntI3_CF=(sqrt2*sigma1s*(exp_xenv1-exp_xenv2))/(4*sqrtpi*deltasenv)
1743              qcenv(ind1)=IntJ+IntI1+IntI2+IntI3
1744              cenv_vol(ind1)=IntJ_CF+IntI1_CF+IntI3_CF
1745              IF (Tbefenv(ind1) .LT. temp_nowater) THEN
1746                  ! freeze all droplets in cirrus temperature regime
1747                  icefracenv(ind1)=1.
1748              ENDIF
1749            ENDIF
1750             
1751
1752
1753            !thermals
1754
1755            IntJ=0.5*sth*(1-erf(xth2))+(sigma2s/sqrt2pi)*exp_xth2
1756            IntJ_CF=0.5*(1.-1.*erf(xth2))
1757     
1758            IF (deltasth .LT. 1.e-10) THEN
1759              qcth(ind1)=IntJ
1760              cth_vol(ind1)=IntJ_CF
1761            ELSE
1762              IntI1=(((sth+deltasth)**2+(sigma2s)**2)/(8*deltasth))*(erf(xth2)-erf(xth1))
1763              IntI2=(sigma2s**2/(4*deltasth*sqrtpi))*(xth1*exp_xth1-xth2*exp_xth2)
1764              IntI3=((sqrt2*sigma2s*(sth+deltasth))/(4*sqrtpi*deltasth))*(exp_xth1-exp_xth2)
1765              IntI1_CF=((sth+deltasth)*(erf(xth2)-erf(xth1)))/(4*deltasth)
1766              IntI3_CF=(sqrt2*sigma2s*(exp_xth1-exp_xth2))/(4*sqrtpi*deltasth)
1767              qcth(ind1)=IntJ+IntI1+IntI2+IntI3
1768              cth_vol(ind1)=IntJ_CF+IntI1_CF+IntI3_CF
1769              IF (Tbefth(ind1) .LT. temp_nowater) THEN
1770                  ! freeze all droplets in cirrus temperature regime
1771                  icefracth(ind1)=1.
1772              ENDIF
1773
1774            ENDIF
1775
1776            qctot(ind1)=frac_th(ind1)*qcth(ind1)+(1.-1.*frac_th(ind1))*qcenv(ind1)
1777            ctot_vol(ind1)=frac_th(ind1)*cth_vol(ind1)+(1.-1.*frac_th(ind1))*cenv_vol(ind1)
1778
1779            IF (cenv(ind1).LT.min_neb_th.and.cth(ind1).LT.min_neb_th) THEN
1780                ctot(ind1)=0.
1781                ctot_vol(ind1)=0.
1782                qcloud(ind1)=qslenv(ind1)
1783                qincloud(ind1)=0.
1784                icefrac(ind1)=0.
1785            ELSE               
1786                qcloud(ind1)=qctot(ind1)/ctot(ind1)+qslenv(ind1)
1787                qincloud(ind1)=qctot(ind1)/ctot(ind1)
1788                IF (qctot(ind1) .GT. 0) THEN
1789                  icefrac(ind1)=(frac_th(ind1)*qcth(ind1)*icefracth(ind1)+(1.-1.*frac_th(ind1))*qcenv(ind1)*icefracenv(ind1))/qctot(ind1)
1790                  icefrac(ind1)=max(min(1.,icefrac(ind1)), 0.)
1791                ENDIF
1792            ENDIF
1793
1794
1795!        ELSE ! mpc_bl_points>0
1796
1797    ELSE  ! gaussian for environment only
1798
1799     
1800        alenv=(0.622*RLVTT*qslenv(ind1))/(rd*thetal_env(ind1)**2)
1801        aenv=1./(1.+(alenv*RLVTT/rcpd))
1802        senv=aenv*(qt_env(ind1)-qslenv(ind1))
1803        sth=0.
1804        sigma1s=ratqs(ind1)*qt_env(ind1)
1805        sigma2s=0.
1806
1807        xenv=senv/(sqrt(2.)*sigma1s)
1808        cenv(ind1)=0.5*(1.-1.*erf(xenv))
1809        ctot(ind1)=0.5*(1.+1.*erf(xenv))
1810        ctot_vol(ind1)=ctot(ind1)
1811        qctot(ind1)=sigma1s*((exp(-1.*xenv**2)/sqrt2pi)+xenv*sqrt(2.)*cenv(ind1))
1812
1813
1814        IF (ctot(ind1).LT.min_neb_th) THEN
1815          ctot(ind1)=0.
1816          qcloud(ind1)=qslenv(ind1)
1817          qincloud(ind1)=0.
1818        ELSE
1819          qcloud(ind1)=qctot(ind1)/ctot(ind1)+qslenv(ind1)
1820          qincloud(ind1)=MAX(qctot(ind1)/ctot(ind1),0.)
1821        ENDIF
1822 
1823
1824    ENDIF       ! From the separation (thermal/envrionnement) and (environnement only,) l.335 et l.492
1825
1826    ! Outputs used to check the PDFs
1827    cloudth_senv(ind1) = senv
1828    cloudth_sth(ind1) = sth
1829    cloudth_sigmaenv(ind1) = sigma1s
1830    cloudth_sigmath(ind1) = sigma2s
1831
1832
1833    ENDDO       !loop on klon
1834
1835
1836RETURN
1837
1838
1839END SUBROUTINE cloudth_mpc
1840
1841
1842
1843!        ELSE ! mpc_bl_points>0
1844!
1845!            ! Treat boundary layer mixed phase clouds
1846!           
1847!            ! thermals
1848!            !=========
1849!
1850!           ! ice phase
1851!           !...........
1852!
1853!            qiceth=0.
1854!            deltazlev_mpc=dz(ind1,:)
1855!            temp_mpc=ztla(ind1,:)*zpspsk(ind1,:)
1856!            pres_mpc=pplay(ind1,:)
1857!            fraca_mpc=fraca(ind1,:)
1858!            snowf_mpc=snowflux(ind1,:)
1859!            iflag_topthermals=0
1860!            IF ((mpc_bl_points(ind1,ind2) .EQ. 1) .AND. (mpc_bl_points(ind1,ind2+1) .EQ. 0))  THEN
1861!                iflag_topthermals = 1
1862!            ELSE IF ((mpc_bl_points(ind1,ind2) .EQ. 1) .AND. (mpc_bl_points(ind1,ind2+1) .EQ. 1) &
1863!                    .AND. (mpc_bl_points(ind1,ind2+2) .EQ. 0) ) THEN
1864!                iflag_topthermals = 2
1865!            ELSE
1866!                iflag_topthermals = 0
1867!            ENDIF
1868!
1869!            CALL ICE_MPC_BL_CLOUDS(ind1,ind2,klev,Ni,Ei,C_cap,d_top,iflag_topthermals,temp_mpc,pres_mpc,zqta(ind1,:), &
1870!                                   qsith(ind1,:),qlth(ind1,:),deltazlev_mpc,wiceth(ind1,:),fraca_mpc,qith(ind1,:))
1871!
1872!            ! qmax calculation
1873!            sigma2s=(sigma2s_factor*((MAX((sthl-senvl),0.)**2)**0.5)/((fraca(ind1,ind2)+0.02)**sigma2s_power))+0.002*zqta(ind1,ind2)
1874!            deltasth=athl*vert_alpha_th*sigma2s
1875!            xth1=-(sthl+deltasth)/(sqrt(2.)*sigma2s)
1876!            xth2=-(sthl-deltasth)/(sqrt(2.)*sigma2s)
1877!            exp_xth1 = exp(-1.*xth1**2)
1878!            exp_xth2 = exp(-1.*xth2**2)
1879!            IntJ=0.5*sthl*(1-erf(xth2))+(sigma2s/sqrt2pi)*exp_xth2
1880!            IntJ_CF=0.5*(1.-1.*erf(xth2))
1881!            IntI1=(((sthl+deltasth)**2+(sigma2s)**2)/(8*deltasth))*(erf(xth2)-erf(xth1))
1882!            IntI2=(sigma2s**2/(4*deltasth*sqrtpi))*(xth1*exp_xth1-xth2*exp_xth2)
1883!            IntI3=((sqrt2*sigma2s*(sthl+deltasth))/(4*sqrtpi*deltasth))*(exp_xth1-exp_xth2)
1884!            IntI1_CF=((sthl+deltasth)*(erf(xth2)-erf(xth1)))/(4*deltasth)
1885!            IntI3_CF=(sqrt2*sigma2s*(exp_xth1-exp_xth2))/(4*sqrtpi*deltasth)
1886!            qmax=MAX(IntJ+IntI1+IntI2+IntI3,0.)
1887!
1888!
1889!            ! Liquid phase
1890!            !................
1891!            ! We account for the effect of ice crystals in thermals on sthl
1892!            ! and on the width of the distribution
1893!
1894!            sthlc=sthl*1./(1.+C_mpc*qith(ind1,ind2))  &
1895!                + (1.-1./(1.+C_mpc*qith(ind1,ind2))) * athl*(qsith(ind1,ind2)-qslth(ind1)) 
1896!
1897!            sigma2sc=(sigma2s_factor*((MAX((sthlc-senvl),0.)**2)**0.5) &
1898!                 /((fraca(ind1,ind2)+0.02)**sigma2s_power)) &
1899!                 +0.002*zqta(ind1,ind2)
1900!            deltasthc=athl*vert_alpha_th*sigma2sc
1901!     
1902!           
1903!            xth1=-(sthlc+deltasthc)/(sqrt(2.)*sigma2sc)
1904!            xth2=-(sthlc-deltasthc)/(sqrt(2.)*sigma2sc)           
1905!            exp_xth1 = exp(-1.*xth1**2)
1906!            exp_xth2 = exp(-1.*xth2**2)
1907!            IntJ=0.5*sthlc*(1-erf(xth2))+(sigma2sc/sqrt2pi)*exp_xth2
1908!            IntJ_CF=0.5*(1.-1.*erf(xth2))
1909!            IntI1=(((sthlc+deltasthc)**2+(sigma2sc)**2)/(8*deltasthc))*(erf(xth2)-erf(xth1))
1910!            IntI2=(sigma2sc**2/(4*deltasthc*sqrtpi))*(xth1*exp_xth1-xth2*exp_xth2)
1911!            IntI3=((sqrt2*sigma2sc*(sthlc+deltasthc))/(4*sqrtpi*deltasthc))*(exp_xth1-exp_xth2)
1912!            IntI1_CF=((sthlc+deltasthc)*(erf(xth2)-erf(xth1)))/(4*deltasthc)
1913!            IntI3_CF=(sqrt2*sigma2sc*(exp_xth1-exp_xth2))/(4*sqrtpi*deltasthc)
1914!            qliqth=IntJ+IntI1+IntI2+IntI3
1915!           
1916!            qlth(ind1,ind2)=MAX(0.,qliqth)
1917!
1918!            ! Condensed water
1919!           
1920!            qcth(ind1,ind2)=qlth(ind1,ind2)+qith(ind1,ind2)
1921!
1922!
1923!            ! consistency with subgrid distribution
1924!           
1925!             IF ((qcth(ind1,ind2) .GT. qmax) .AND. (qcth(ind1,ind2) .GT. 0)) THEN
1926!                 fraci=qith(ind1,ind2)/qcth(ind1,ind2)
1927!                 qcth(ind1,ind2)=qmax
1928!                 qith(ind1,ind2)=fraci*qmax
1929!                 qlth(ind1,ind2)=(1.-fraci)*qmax
1930!             ENDIF
1931!
1932!            ! Cloud Fraction
1933!            !...............
1934!            ! calculation of qbase which is the value of the water vapor within mixed phase clouds
1935!            ! such that the total water in cloud = qbase+qliqth+qiceth
1936!            ! sbase is the value of s such that int_sbase^\intfy s ds = cloud fraction
1937!            ! sbase and qbase calculation (note that sbase is wrt liq so negative)
1938!            ! look for an approximate solution with iteration
1939!           
1940!            ttarget=qcth(ind1,ind2)
1941!            mini= athl*(qsith(ind1,ind2)-qslth(ind1))
1942!            maxi= 0. !athl*(3.*sqrt(sigma2s))
1943!            niter=20
1944!            pas=(maxi-mini)/niter
1945!            stmp=mini
1946!            sbase=stmp
1947!            coutref=1.E6
1948!            DO iter=1,niter
1949!                cout=ABS(sigma2s/SQRT(2.*RPI)*EXP(-((sthl-stmp)/sigma2s)**2)+(sthl-stmp)/SQRT(2.)*(1.-erf(-(sthl-stmp)/sigma2s)) &
1950!                     + stmp/2.*(1.-erf(-(sthl-stmp)/sigma2s)) -ttarget)
1951!               IF (cout .LT. coutref) THEN
1952!                     sbase=stmp
1953!                     coutref=cout
1954!                ELSE
1955!                     stmp=stmp+pas
1956!                ENDIF
1957!            ENDDO
1958!            qbase=MAX(0., sbase/athl+qslth(ind1))
1959!
1960!            ! surface cloud fraction in thermals
1961!            cth(ind1,ind2)=0.5*(1.-erf((sbase-sthl)/sqrt(2.)/sigma2s))
1962!            cth(ind1,ind2)=MIN(MAX(cth(ind1,ind2),0.),1.)
1963!
1964!
1965!            !volume cloud fraction in thermals
1966!            !to be checked
1967!            xth1=-(sthl+deltasth-sbase)/(sqrt(2.)*sigma2s)
1968!            xth2=-(sthl-deltasth-sbase)/(sqrt(2.)*sigma2s)           
1969!            exp_xth1 = exp(-1.*xth1**2)
1970!            exp_xth2 = exp(-1.*xth2**2)
1971!
1972!            IntJ=0.5*sthl*(1-erf(xth2))+(sigma2s/sqrt2pi)*exp_xth2
1973!            IntJ_CF=0.5*(1.-1.*erf(xth2))
1974!     
1975!            IF (deltasth .LT. 1.e-10) THEN
1976!              cth_vol(ind1,ind2)=IntJ_CF
1977!            ELSE
1978!              IntI1=(((sthl+deltasth-sbase)**2+(sigma2s)**2)/(8*deltasth))*(erf(xth2)-erf(xth1))
1979!              IntI2=(sigma2s**2/(4*deltasth*sqrtpi))*(xth1*exp_xth1-xth2*exp_xth2)
1980!              IntI3=((sqrt2*sigma2s*(sthl+deltasth))/(4*sqrtpi*deltasth))*(exp_xth1-exp_xth2)
1981!              IntI1_CF=((sthl-sbase+deltasth)*(erf(xth2)-erf(xth1)))/(4*deltasth)
1982!              IntI3_CF=(sqrt2*sigma2s*(exp_xth1-exp_xth2))/(4*sqrtpi*deltasth)
1983!              cth_vol(ind1,ind2)=IntJ_CF+IntI1_CF+IntI3_CF
1984!            ENDIF
1985!              cth_vol(ind1,ind2)=MIN(MAX(0.,cth_vol(ind1,ind2)),1.)
1986!
1987!
1988!
1989!            ! Environment
1990!            !=============
1991!            ! In the environment/downdrafts, only liquid clouds
1992!            ! See Shupe et al. 2008, JAS
1993!
1994!            ! standard deviation of the distribution in the environment
1995!            sth=sthl
1996!            senv=senvl
1997!            sigma1s_fraca = (sigma1s_factor**0.5)*(fraca(ind1,ind2)**sigma1s_power) / &
1998!                          &                (1-fraca(ind1,ind2))*(MAX((sth-senv),0.)**2)**0.5
1999!            ! for mixed phase clouds, there is no contribution from large scale ratqs to the distribution
2000!            ! in the environement
2001!
2002!            sigma1s_ratqs=1E-10
2003!            IF (cloudth_ratqsmin>0.) THEN
2004!                sigma1s_ratqs = cloudth_ratqsmin*po(ind1)
2005!            ENDIF
2006!
2007!            sigma1s = sigma1s_fraca + sigma1s_ratqs
2008!            IF (iflag_ratqs.eq.11) then
2009!               sigma1s = ratqs(ind1,ind2)*po(ind1)*aenv
2010!            ENDIF
2011!            IF (iflag_ratqs.eq.11) then
2012!              sigma1s = ratqs(ind1,ind2)*po(ind1)*aenvl
2013!            ENDIF
2014!            deltasenv=aenvl*vert_alpha*sigma1s
2015!            xenv1=-(senvl+deltasenv)/(sqrt(2.)*sigma1s)
2016!            xenv2=-(senvl-deltasenv)/(sqrt(2.)*sigma1s)
2017!            exp_xenv1 = exp(-1.*xenv1**2)
2018!            exp_xenv2 = exp(-1.*xenv2**2)
2019!
2020!            !surface CF
2021!            cenv(ind1,ind2)=0.5*(1.-1.*erf(xenv1))
2022!
2023!            !volume CF and condensed water
2024!            IntJ=0.5*senvl*(1-erf(xenv2))+(sigma1s/sqrt2pi)*exp_xenv2
2025!            IntJ_CF=0.5*(1.-1.*erf(xenv2))
2026!
2027!            IF (deltasenv .LT. 1.e-10) THEN
2028!              qcenv(ind1,ind2)=IntJ
2029!              cenv_vol(ind1,ind2)=IntJ_CF
2030!            ELSE
2031!              IntI1=(((senvl+deltasenv)**2+(sigma1s)**2)/(8*deltasenv))*(erf(xenv2)-erf(xenv1))
2032!              IntI2=(sigma1s**2/(4*deltasenv*sqrtpi))*(xenv1*exp_xenv1-xenv2*exp_xenv2)
2033!              IntI3=((sqrt2*sigma1s*(senv+deltasenv))/(4*sqrtpi*deltasenv))*(exp_xenv1-exp_xenv2)
2034!              IntI1_CF=((senvl+deltasenv)*(erf(xenv2)-erf(xenv1)))/(4*deltasenv)
2035!              IntI3_CF=(sqrt2*sigma1s*(exp_xenv1-exp_xenv2))/(4*sqrtpi*deltasenv)
2036!              qcenv(ind1,ind2)=IntJ+IntI1+IntI2+IntI3 ! only liquid water in environment
2037!              cenv_vol(ind1,ind2)=IntJ_CF+IntI1_CF+IntI3_CF
2038!            ENDIF
2039!
2040!            qcenv(ind1,ind2)=MAX(qcenv(ind1,ind2),0.)
2041!            cenv_vol(ind1,ind2)=MIN(MAX(cenv_vol(ind1,ind2),0.),1.)
2042!
2043!
2044!           
2045!            ! Thermals + environment
2046!            ! =======================
2047!            ctot(ind1,ind2)=fraca(ind1,ind2)*cth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv(ind1,ind2)
2048!            qctot(ind1,ind2)=fraca(ind1,ind2)*qcth(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*qcenv(ind1,ind2)
2049!            ctot_vol(ind1,ind2)=fraca(ind1,ind2)*cth_vol(ind1,ind2)+(1.-1.*fraca(ind1,ind2))*cenv_vol(ind1,ind2)
2050!            IF (qcth(ind1,ind2) .GT. 0) THEN
2051!               icefrac(ind1,ind2)=fraca(ind1,ind2)*qith(ind1,ind2) &
2052!                    /(fraca(ind1,ind2)*qcth(ind1,ind2) &
2053!                    +(1.-1.*fraca(ind1,ind2))*qcenv(ind1,ind2))
2054!                icefrac(ind1,ind2)=MAX(MIN(1.,icefrac(ind1,ind2)),0.)
2055!            ELSE
2056!                icefrac(ind1,ind2)=0.
2057!            ENDIF
2058!
2059!            IF (cenv(ind1,ind2).LT.1.e-10.or.cth(ind1,ind2).LT.1.e-10) THEN
2060!                ctot(ind1,ind2)=0.
2061!                ctot_vol(ind1,ind2)=0.
2062!                qincloud(ind1)=0.
2063!                qcloud(ind1)=zqsatenv(ind1)
2064!            ELSE               
2065!                qcloud(ind1)=fraca(ind1,ind2)*(qcth(ind1,ind2)/cth(ind1,ind2)+qbase) &
2066!                            +(1.-1.*fraca(ind1,ind2))*(qcenv(ind1,ind2)/cenv(ind1,ind2)+qslenv(ind1))
2067!                qincloud(ind1)=MAX(fraca(ind1,ind2)*(qcth(ind1,ind2)/cth(ind1,ind2)) &
2068!                            +(1.-1.*fraca(ind1,ind2))*(qcenv(ind1,ind2)/cenv(ind1,ind2)),0.)
2069!            ENDIF
2070!
2071!        ENDIF ! mpc_bl_points
2072
2073
2074
2075!++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2076SUBROUTINE ICE_MPC_BL_CLOUDS(ind1,ind2,klev,Ni,Ei,C_cap,d_top,iflag_topthermals,temp,pres,qth,qsith,qlth,deltazlev,vith,fraca,qith)
2077
2078! parameterization of ice for boundary
2079! layer mixed-phase clouds assuming a stationary system
2080!
2081! Note that vapor deposition on ice crystals and riming of liquid droplets
2082! depend on the ice number concentration Ni
2083! One could assume that Ni depends on qi, e.g.,  Ni=beta*(qi*rho)**xi
2084! and use values from Hong et al. 2004, MWR for instance
2085! One may also estimate Ni as a function of T, as in Meyers 1922 or Fletcher 1962
2086! One could also think of a more complex expression of Ni;
2087! function of qi, T, the concentration in aerosols or INP ..
2088! Here we prefer fixing Ni to a tuning parameter
2089! By default we take 2.0L-1=2.0e3m-3, median value from measured vertical profiles near Svalbard
2090! in Mioche et al. 2017
2091!
2092!
2093! References:
2094!------------
2095! This parameterization is thoroughly described in Vignon et al.
2096!
2097! More specifically
2098! for the Water vapor deposition process:
2099!
2100! Rotstayn, L. D., 1997: A physically based scheme for the treat-
2101! ment of stratiform cloudfs and precipitation in large-scale
2102! models. I: Description and evaluation of the microphysical
2103! processes. Quart. J. Roy. Meteor. Soc., 123, 1227–1282.
2104!
2105!  Morrison, H., and A. Gettelman, 2008: A new two-moment bulk
2106!  stratiform cloud microphysics scheme in the NCAR Com-
2107!  munity Atmosphere Model (CAM3). Part I: Description and
2108!  numerical tests. J. Climate, 21, 3642–3659
2109!
2110! for the Riming process:
2111!
2112! Rutledge, S. A., and P. V. Hobbs, 1983: The mesoscale and micro-
2113! scale structure and organization of clouds and precipitation in
2114! midlatitude cyclones. VII: A model for the ‘‘seeder-feeder’’
2115! process in warm-frontal rainbands. J. Atmos. Sci., 40, 1185–1206
2116!
2117! Thompson, G., R. M. Rasmussen, and K. Manning, 004: Explicit
2118! forecasts of winter precipitation using an improved bulk
2119! microphysics scheme. Part I: Description and sensitivityThompson, G., R. M. Rasmussen, and K. Manning, 2004: Explicit
2120! forecasts of winter precipitation using an improved bulk
2121! microphysics scheme. Part I: Description and sensitivity analysis. Mon. Wea. Rev., 132, 519–542
2122!
2123! For the formation of clouds by thermals:
2124!
2125! Rio, C., & Hourdin, F. (2008). A thermal plume model for the convective boundary layer : Representation of cumulus clouds. Journal of
2126! the Atmospheric Sciences, 65, 407–425.
2127!
2128! Jam, A., Hourdin, F., Rio, C., & Couvreux, F. (2013). Resolved versus parametrized boundary-layer plumes. Part III: Derivation of a
2129! statistical scheme for cumulus clouds. Boundary-layer Meteorology, 147, 421–441. https://doi.org/10.1007/s10546-012-9789-3
2130!
2131!
2132!
2133! Contact: Etienne Vignon, etienne.vignon@lmd.ipsl.fr
2134!=============================================================================
2135
2136    use phys_state_var_mod, ONLY : fm_therm, detr_therm, entr_therm
2137
2138    IMPLICIT none
2139
2140    INCLUDE "YOMCST.h"
2141
2142    INTEGER, INTENT(IN) :: ind1,ind2, klev           ! horizontal and vertical indices and dimensions
2143    INTEGER, INTENT(IN) :: iflag_topthermals         ! uppermost layer of thermals ?
2144    REAL, INTENT(IN)    :: Ni                        ! ice number concentration [m-3]
2145    REAL, INTENT(IN)    :: Ei                        ! ice-droplet collision efficiency
2146    REAL, INTENT(IN)    :: C_cap                     ! ice crystal capacitance
2147    REAL, INTENT(IN)    :: d_top                     ! cloud-top ice crystal mixing parameter
2148    REAL,  DIMENSION(klev), INTENT(IN) :: temp       ! temperature [K] within thermals
2149    REAL,  DIMENSION(klev), INTENT(IN) :: pres       ! pressure [Pa]
2150    REAL,  DIMENSION(klev), INTENT(IN) :: qth        ! mean specific water content in thermals [kg/kg]
2151    REAL,  DIMENSION(klev), INTENT(IN) :: qsith        ! saturation specific humidity wrt ice in thermals [kg/kg]
2152    REAL,  DIMENSION(klev), INTENT(IN) :: qlth       ! condensed liquid water in thermals, approximated value [kg/kg]
2153    REAL,  DIMENSION(klev), INTENT(IN) :: deltazlev  ! layer thickness [m]
2154    REAL,  DIMENSION(klev), INTENT(IN) :: vith       ! ice crystal fall velocity [m/s]
2155    REAL,  DIMENSION(klev+1), INTENT(IN) :: fraca      ! fraction of the mesh covered by thermals
2156    REAL,  DIMENSION(klev), INTENT(INOUT) :: qith       ! condensed ice water , thermals [kg/kg]
2157
2158
2159    INTEGER ind2p1,ind2p2
2160    REAL rho(klev)
2161    REAL unsurtaudet, unsurtaustardep, unsurtaurim
2162    REAL qi, AA, BB, Ka, Dv, rhoi
2163    REAL p0, t0, fp1, fp2
2164    REAL alpha, flux_term
2165    REAL det_term, precip_term, rim_term, dep_term
2166
2167
2168    ind2p1=ind2+1
2169    ind2p2=ind2+2
2170
2171    rho=pres/temp/RD  ! air density kg/m3
2172
2173    Ka=2.4e-2      ! thermal conductivity of the air, SI
2174    p0=101325.0    ! ref pressure
2175    T0=273.15      ! ref temp
2176    rhoi=500.0     ! cloud ice density following Reisner et al. 1998
2177    alpha=700.     ! fallvelocity param
2178
2179
2180    IF (iflag_topthermals .GT. 0) THEN ! uppermost thermals levels
2181
2182    Dv=0.0001*0.211*(p0/pres(ind2))*((temp(ind2)/T0)**1.94) ! water vapor diffusivity in air, SI
2183
2184    ! Detrainment term:
2185
2186    unsurtaudet=detr_therm(ind1,ind2)/rho(ind2)/deltazlev(ind2)
2187 
2188
2189    ! Deposition term
2190    AA=RLSTT/Ka/temp(ind2)*(RLSTT/RV/temp(ind2)-1.)
2191    BB=1./(rho(ind2)*Dv*qsith(ind2))
2192    unsurtaustardep=C_cap*(Ni**0.66)*(qth(ind2)-qsith(ind2))/qsith(ind2) &
2193                    *4.*RPI/(AA+BB)*(6.*rho(ind2)/rhoi/RPI/Gamma(4.))**(0.33)
2194
2195    ! Riming term  neglected at this level
2196    !unsurtaurim=rho(ind2)*alpha*3./rhoi/2.*Ei*qlth(ind2)*((p0/pres(ind2))**0.4)
2197
2198    qi=fraca(ind2)*unsurtaustardep/MAX((d_top*unsurtaudet),1E-12)
2199    qi=MAX(qi,0.)**(3./2.)
2200
2201    ELSE ! other levels, estimate qi(k) from variables at k+1 and k+2
2202
2203    Dv=0.0001*0.211*(p0/pres(ind2p1))*((temp(ind2p1)/T0)**1.94) ! water vapor diffusivity in air, SI
2204
2205    ! Detrainment term:
2206
2207    unsurtaudet=detr_therm(ind1,ind2p1)/rho(ind2p1)/deltazlev(ind2p1)
2208    det_term=-unsurtaudet*qith(ind2p1)*rho(ind2p1)
2209   
2210   
2211    ! Deposition term
2212
2213    AA=RLSTT/Ka/temp(ind2p1)*(RLSTT/RV/temp(ind2p1)-1.)
2214    BB=1./(rho(ind2p1)*Dv*qsith(ind2p1))
2215    unsurtaustardep=C_cap*(Ni**0.66)*(qth(ind2p1)-qsith(ind2p1)) &
2216         /qsith(ind2p1)*4.*RPI/(AA+BB) &
2217         *(6.*rho(ind2p1)/rhoi/RPI/Gamma(4.))**(0.33)
2218    dep_term=rho(ind2p1)*fraca(ind2p1)*(qith(ind2p1)**0.33)*unsurtaustardep
2219 
2220    ! Riming term
2221
2222    unsurtaurim=rho(ind2p1)*alpha*3./rhoi/2.*Ei*qlth(ind2p1)*((p0/pres(ind2p1))**0.4)
2223    rim_term=rho(ind2p1)*fraca(ind2p1)*qith(ind2p1)*unsurtaurim
2224
2225    ! Precip term
2226
2227    ! We assume that there is no solid precipitation outside thermals
2228    ! so the precipitation flux within thermals is equal to the precipitation flux
2229    ! at mesh-scale divided by  thermals fraction
2230   
2231    fp2=0.
2232    fp1=0.
2233    IF (fraca(ind2p1) .GT. 0.) THEN
2234    fp2=-qith(ind2p2)*rho(ind2p2)*vith(ind2p2)*fraca(ind2p2)! flux defined positive upward
2235    fp1=-qith(ind2p1)*rho(ind2p1)*vith(ind2p1)*fraca(ind2p1)
2236    ENDIF
2237
2238    precip_term=-1./deltazlev(ind2p1)*(fp2-fp1)
2239
2240    ! Calculation in a top-to-bottom loop
2241
2242    IF (fm_therm(ind1,ind2p1) .GT. 0.) THEN
2243          qi= 1./fm_therm(ind1,ind2p1)* &
2244              (deltazlev(ind2p1)*(-rim_term-dep_term-det_term-precip_term) + &
2245              fm_therm(ind1,ind2p2)*(qith(ind2p1)))
2246    END IF
2247
2248    ENDIF ! top thermals
2249
2250    qith(ind2)=MAX(0.,qi)
2251
2252    RETURN
2253
2254END SUBROUTINE ICE_MPC_BL_CLOUDS
2255
2256END MODULE lmdz_cloudth
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