1 |
guez |
22 |
SUBROUTINE fisrtilp(dtime,paprs,pplay,t,q,ptconv,ratqs,d_t,d_q,d_ql,rneb, & |
2 |
|
|
radliq,rain,snow,pfrac_impa,pfrac_nucl,pfrac_1nucl,frac_impa, & |
3 |
|
|
frac_nucl,prfl,psfl,rhcl) |
4 |
guez |
3 |
|
5 |
guez |
22 |
! From phylmd/fisrtilp.F,v 1.2 2004/11/09 16:55:40 |
6 |
|
|
! Auteur(s): Z.X. Li (LMD/CNRS) |
7 |
|
|
! Date: le 20 mars 1995 |
8 |
|
|
! Objet: condensation et precipitation stratiforme. |
9 |
|
|
! schema de nuage |
10 |
guez |
3 |
|
11 |
guez |
22 |
USE dimens_m |
12 |
|
|
USE dimphy |
13 |
|
|
USE tracstoke |
14 |
guez |
38 |
USE suphec_m |
15 |
|
|
USE yoethf_m |
16 |
guez |
22 |
USE fcttre |
17 |
|
|
USE comfisrtilp |
18 |
guez |
36 |
use numer_rec, only: nr_erf |
19 |
guez |
3 |
|
20 |
guez |
22 |
IMPLICIT NONE |
21 |
guez |
3 |
|
22 |
guez |
22 |
! Arguments: |
23 |
guez |
3 |
|
24 |
guez |
22 |
REAL, INTENT (IN) :: & ! intervalle du temps (s) |
25 |
|
|
dtime |
26 |
|
|
REAL, INTENT (IN) :: paprs(klon,klev+1) ! pression a inter-couche |
27 |
|
|
REAL, INTENT (IN) :: pplay(klon,klev) ! pression au milieu de couche |
28 |
|
|
REAL t(klon,klev) ! temperature (K) |
29 |
|
|
REAL q(klon,klev) ! humidite specifique (kg/kg) |
30 |
|
|
REAL d_t(klon,klev) ! incrementation de la temperature (K) |
31 |
|
|
REAL d_q(klon,klev) ! incrementation de la vapeur d'eau |
32 |
|
|
REAL d_ql(klon,klev) ! incrementation de l'eau liquide |
33 |
|
|
REAL rneb(klon,klev) ! fraction nuageuse |
34 |
|
|
REAL radliq(klon,klev) ! eau liquide utilisee dans rayonnements |
35 |
|
|
REAL rhcl(klon,klev) ! humidite relative en ciel clair |
36 |
|
|
REAL rain(klon) ! pluies (mm/s) |
37 |
|
|
REAL snow(klon) ! neige (mm/s) |
38 |
|
|
REAL prfl(klon,klev+1) ! flux d'eau precipitante aux interfaces (kg/m2/s) |
39 |
|
|
REAL psfl(klon,klev+1) ! flux d'eau precipitante aux interfaces (kg/m2/s) |
40 |
|
|
! Coeffients de fraction lessivee : pour OFF-LINE |
41 |
guez |
3 |
|
42 |
guez |
22 |
REAL pfrac_nucl(klon,klev) |
43 |
|
|
REAL pfrac_1nucl(klon,klev) |
44 |
|
|
REAL pfrac_impa(klon,klev) |
45 |
guez |
3 |
|
46 |
guez |
22 |
! Fraction d'aerosols lessivee par impaction et par nucleation |
47 |
|
|
! POur ON-LINE |
48 |
guez |
3 |
|
49 |
guez |
22 |
REAL frac_impa(klon,klev) |
50 |
|
|
REAL frac_nucl(klon,klev) |
51 |
|
|
REAL zct(klon), zcl(klon) |
52 |
|
|
!AA |
53 |
guez |
3 |
|
54 |
guez |
22 |
! Options du programme: |
55 |
guez |
3 |
|
56 |
guez |
22 |
REAL seuil_neb ! un nuage existe vraiment au-dela |
57 |
|
|
PARAMETER (seuil_neb=0.001) |
58 |
guez |
3 |
|
59 |
guez |
22 |
INTEGER ninter ! sous-intervals pour la precipitation |
60 |
|
|
PARAMETER (ninter=5) |
61 |
|
|
LOGICAL evap_prec ! evaporation de la pluie |
62 |
|
|
PARAMETER (evap_prec=.TRUE.) |
63 |
|
|
REAL ratqs(klon,klev) ! determine la largeur de distribution de vapeur |
64 |
|
|
LOGICAL ptconv(klon,klev) ! determine la largeur de distribution de vapeur |
65 |
|
|
REAL zpdf_sig(klon), zpdf_k(klon), zpdf_delta(klon) |
66 |
|
|
REAL zpdf_a(klon), zpdf_b(klon), zpdf_e1(klon), zpdf_e2(klon) |
67 |
guez |
3 |
|
68 |
guez |
22 |
LOGICAL cpartiel ! condensation partielle |
69 |
|
|
PARAMETER (cpartiel=.TRUE.) |
70 |
|
|
REAL t_coup |
71 |
|
|
PARAMETER (t_coup=234.0) |
72 |
|
|
|
73 |
|
|
! Variables locales: |
74 |
|
|
|
75 |
|
|
INTEGER i, k, n, kk |
76 |
|
|
REAL zqs(klon), zdqs(klon), zdelta, zcor, zcvm5 |
77 |
|
|
REAL zrfl(klon), zrfln(klon), zqev, zqevt |
78 |
|
|
REAL zoliq(klon), zcond(klon), zq(klon), zqn(klon), zdelq |
79 |
|
|
REAL ztglace, zt(klon) |
80 |
|
|
INTEGER nexpo ! exponentiel pour glace/eau |
81 |
|
|
REAL zdz(klon), zrho(klon), ztot(klon), zrhol(klon) |
82 |
|
|
REAL zchau(klon), zfroi(klon), zfice(klon), zneb(klon) |
83 |
|
|
|
84 |
|
|
LOGICAL appel1er |
85 |
|
|
SAVE appel1er |
86 |
|
|
|
87 |
|
|
!--------------------------------------------------------------- |
88 |
|
|
|
89 |
|
|
!AA Variables traceurs: |
90 |
|
|
!AA Provisoire !!! Parametres alpha du lessivage |
91 |
|
|
!AA A priori on a 4 scavenging numbers possibles |
92 |
|
|
|
93 |
|
|
REAL a_tr_sca(4) |
94 |
|
|
SAVE a_tr_sca |
95 |
|
|
|
96 |
|
|
! Variables intermediaires |
97 |
|
|
|
98 |
|
|
REAL zalpha_tr |
99 |
|
|
REAL zfrac_lessi |
100 |
|
|
REAL zprec_cond(klon) |
101 |
|
|
!AA |
102 |
|
|
REAL zmair, zcpair, zcpeau |
103 |
|
|
! Pour la conversion eau-neige |
104 |
|
|
REAL zlh_solid(klon), zm_solid |
105 |
|
|
!IM |
106 |
|
|
INTEGER klevm1 |
107 |
|
|
!--------------------------------------------------------------- |
108 |
|
|
|
109 |
|
|
! Fonctions en ligne: |
110 |
|
|
|
111 |
|
|
REAL fallvs, fallvc ! vitesse de chute pour crystaux de glace |
112 |
|
|
REAL zzz |
113 |
|
|
|
114 |
|
|
fallvc(zzz) = 3.29/2.0*((zzz)**0.16)*ffallv_con |
115 |
|
|
fallvs(zzz) = 3.29/2.0*((zzz)**0.16)*ffallv_lsc |
116 |
|
|
|
117 |
|
|
DATA appel1er/ .TRUE./ |
118 |
|
|
!ym |
119 |
|
|
zdelq = 0.0 |
120 |
|
|
|
121 |
|
|
IF (appel1er) THEN |
122 |
|
|
|
123 |
|
|
PRINT *, 'fisrtilp, ninter:', ninter |
124 |
|
|
PRINT *, 'fisrtilp, evap_prec:', evap_prec |
125 |
|
|
PRINT *, 'fisrtilp, cpartiel:', cpartiel |
126 |
|
|
IF (abs(dtime/float(ninter)-360.0)>0.001) THEN |
127 |
|
|
PRINT *, 'fisrtilp: Ce n est pas prevu, voir Z.X.Li', dtime |
128 |
|
|
PRINT *, 'Je prefere un sous-intervalle de 6 minutes' |
129 |
|
|
! stop 1 |
130 |
|
|
END IF |
131 |
|
|
appel1er = .FALSE. |
132 |
|
|
|
133 |
|
|
!AA initialiation provisoire |
134 |
|
|
a_tr_sca(1) = -0.5 |
135 |
|
|
a_tr_sca(2) = -0.5 |
136 |
|
|
a_tr_sca(3) = -0.5 |
137 |
|
|
a_tr_sca(4) = -0.5 |
138 |
|
|
|
139 |
|
|
!AA Initialisation a 1 des coefs des fractions lessivees |
140 |
|
|
|
141 |
|
|
DO k = 1, klev |
142 |
|
|
DO i = 1, klon |
143 |
|
|
pfrac_nucl(i,k) = 1. |
144 |
|
|
pfrac_1nucl(i,k) = 1. |
145 |
|
|
pfrac_impa(i,k) = 1. |
146 |
|
|
END DO |
147 |
|
|
END DO |
148 |
|
|
|
149 |
|
|
|
150 |
|
|
END IF ! test sur appel1er |
151 |
|
|
!MAf Initialisation a 0 de zoliq |
152 |
|
|
DO i = 1, klon |
153 |
|
|
zoliq(i) = 0. |
154 |
|
|
END DO |
155 |
|
|
! Determiner les nuages froids par leur temperature |
156 |
|
|
! nexpo regle la raideur de la transition eau liquide / eau glace. |
157 |
|
|
|
158 |
|
|
ztglace = rtt - 15.0 |
159 |
|
|
nexpo = 6 |
160 |
|
|
!cc nexpo = 1 |
161 |
|
|
|
162 |
|
|
! Initialiser les sorties: |
163 |
|
|
|
164 |
|
|
DO k = 1, klev + 1 |
165 |
|
|
DO i = 1, klon |
166 |
|
|
prfl(i,k) = 0.0 |
167 |
|
|
psfl(i,k) = 0.0 |
168 |
|
|
END DO |
169 |
|
|
END DO |
170 |
|
|
|
171 |
|
|
DO k = 1, klev |
172 |
|
|
DO i = 1, klon |
173 |
|
|
d_t(i,k) = 0.0 |
174 |
|
|
d_q(i,k) = 0.0 |
175 |
|
|
d_ql(i,k) = 0.0 |
176 |
|
|
rneb(i,k) = 0.0 |
177 |
|
|
radliq(i,k) = 0.0 |
178 |
|
|
frac_nucl(i,k) = 1. |
179 |
|
|
frac_impa(i,k) = 1. |
180 |
|
|
END DO |
181 |
|
|
END DO |
182 |
|
|
DO i = 1, klon |
183 |
|
|
rain(i) = 0.0 |
184 |
|
|
snow(i) = 0.0 |
185 |
|
|
END DO |
186 |
|
|
|
187 |
|
|
! Initialiser le flux de precipitation a zero |
188 |
|
|
|
189 |
|
|
DO i = 1, klon |
190 |
|
|
zrfl(i) = 0.0 |
191 |
|
|
zneb(i) = seuil_neb |
192 |
|
|
END DO |
193 |
|
|
|
194 |
|
|
|
195 |
|
|
!AA Pour plus de securite |
196 |
|
|
|
197 |
|
|
zalpha_tr = 0. |
198 |
|
|
zfrac_lessi = 0. |
199 |
|
|
|
200 |
|
|
!AA---------------------------------------------------------- |
201 |
|
|
|
202 |
|
|
! Boucle verticale (du haut vers le bas) |
203 |
|
|
|
204 |
|
|
!IM : klevm1 |
205 |
|
|
klevm1 = klev - 1 |
206 |
|
|
DO k = klev, 1, -1 |
207 |
|
|
|
208 |
|
|
!AA---------------------------------------------------------- |
209 |
|
|
|
210 |
|
|
DO i = 1, klon |
211 |
|
|
zt(i) = t(i,k) |
212 |
|
|
zq(i) = q(i,k) |
213 |
|
|
END DO |
214 |
|
|
|
215 |
|
|
! Calculer la varition de temp. de l'air du a la chaleur sensible |
216 |
|
|
! transporter par la pluie. |
217 |
|
|
! Il resterait a rajouter cet effet de la chaleur sensible sur les |
218 |
|
|
! flux de surface, du a la diff. de temp. entre le 1er niveau et la |
219 |
|
|
! surface. |
220 |
|
|
|
221 |
|
|
DO i = 1, klon |
222 |
|
|
IF (k<=klevm1) THEN |
223 |
|
|
zmair = (paprs(i,k)-paprs(i,k+1))/rg |
224 |
|
|
zcpair = rcpd*(1.0+rvtmp2*zq(i)) |
225 |
|
|
zcpeau = rcpd*rvtmp2 |
226 |
|
|
zt(i) = ((t(i,k+1)+d_t(i,k+1))*zrfl(i)*dtime*zcpeau+zmair*zcpair* & |
227 |
|
|
zt(i))/(zmair*zcpair+zrfl(i)*dtime*zcpeau) |
228 |
|
|
!C WRITE (6,*) 'cppluie ', zt(i)-(t(i,k+1)+d_t(i,k+1)) |
229 |
|
|
END IF |
230 |
|
|
END DO |
231 |
|
|
|
232 |
|
|
! Calculer l'evaporation de la precipitation |
233 |
|
|
|
234 |
|
|
|
235 |
|
|
|
236 |
|
|
IF (evap_prec) THEN |
237 |
|
|
DO i = 1, klon |
238 |
|
|
IF (zrfl(i)>0.) THEN |
239 |
|
|
IF (thermcep) THEN |
240 |
|
|
zdelta = max(0.,sign(1.,rtt-zt(i))) |
241 |
|
|
zqs(i) = r2es*foeew(zt(i),zdelta)/pplay(i,k) |
242 |
|
|
zqs(i) = min(0.5,zqs(i)) |
243 |
|
|
zcor = 1./(1.-retv*zqs(i)) |
244 |
|
|
zqs(i) = zqs(i)*zcor |
245 |
|
|
ELSE |
246 |
|
|
IF (zt(i)<t_coup) THEN |
247 |
|
|
zqs(i) = qsats(zt(i))/pplay(i,k) |
248 |
|
|
ELSE |
249 |
|
|
zqs(i) = qsatl(zt(i))/pplay(i,k) |
250 |
|
|
END IF |
251 |
|
|
END IF |
252 |
|
|
zqev = max(0.0,(zqs(i)-zq(i))*zneb(i)) |
253 |
|
|
zqevt = coef_eva*(1.0-zq(i)/zqs(i))*sqrt(zrfl(i))* & |
254 |
|
|
(paprs(i,k)-paprs(i,k+1))/pplay(i,k)*zt(i)*rd/rg |
255 |
|
|
zqevt = max(0.0,min(zqevt,zrfl(i)))*rg*dtime/ & |
256 |
|
|
(paprs(i,k)-paprs(i,k+1)) |
257 |
|
|
zqev = min(zqev,zqevt) |
258 |
|
|
zrfln(i) = zrfl(i) - zqev*(paprs(i,k)-paprs(i,k+1))/rg/dtime |
259 |
|
|
|
260 |
|
|
! pour la glace, on réévapore toute la précip dans la couche du dessous |
261 |
|
|
! la glace venant de la couche du dessus est simplement dans la couche |
262 |
|
|
! du dessous. |
263 |
|
|
|
264 |
|
|
IF (zt(i)<t_coup .AND. reevap_ice) zrfln(i) = 0. |
265 |
|
|
|
266 |
|
|
zq(i) = zq(i) - (zrfln(i)-zrfl(i))*(rg/(paprs(i,k)-paprs(i, & |
267 |
|
|
k+1)))*dtime |
268 |
|
|
zt(i) = zt(i) + (zrfln(i)-zrfl(i))*(rg/(paprs(i,k)-paprs(i, & |
269 |
|
|
k+1)))*dtime*rlvtt/rcpd/(1.0+rvtmp2*zq(i)) |
270 |
|
|
zrfl(i) = zrfln(i) |
271 |
|
|
END IF |
272 |
|
|
END DO |
273 |
|
|
END IF |
274 |
|
|
|
275 |
|
|
! Calculer Qs et L/Cp*dQs/dT: |
276 |
|
|
|
277 |
|
|
IF (thermcep) THEN |
278 |
|
|
DO i = 1, klon |
279 |
|
|
zdelta = max(0.,sign(1.,rtt-zt(i))) |
280 |
|
|
zcvm5 = r5les*rlvtt*(1.-zdelta) + r5ies*rlstt*zdelta |
281 |
|
|
zcvm5 = zcvm5/rcpd/(1.0+rvtmp2*zq(i)) |
282 |
|
|
zqs(i) = r2es*foeew(zt(i),zdelta)/pplay(i,k) |
283 |
|
|
zqs(i) = min(0.5,zqs(i)) |
284 |
|
|
zcor = 1./(1.-retv*zqs(i)) |
285 |
guez |
3 |
zqs(i) = zqs(i)*zcor |
286 |
guez |
22 |
zdqs(i) = foede(zt(i),zdelta,zcvm5,zqs(i),zcor) |
287 |
|
|
END DO |
288 |
|
|
ELSE |
289 |
|
|
DO i = 1, klon |
290 |
|
|
IF (zt(i)<t_coup) THEN |
291 |
|
|
zqs(i) = qsats(zt(i))/pplay(i,k) |
292 |
|
|
zdqs(i) = dqsats(zt(i),zqs(i)) |
293 |
|
|
ELSE |
294 |
|
|
zqs(i) = qsatl(zt(i))/pplay(i,k) |
295 |
|
|
zdqs(i) = dqsatl(zt(i),zqs(i)) |
296 |
|
|
END IF |
297 |
|
|
END DO |
298 |
|
|
END IF |
299 |
guez |
3 |
|
300 |
guez |
22 |
! Determiner la condensation partielle et calculer la quantite |
301 |
|
|
! de l'eau condensee: |
302 |
guez |
3 |
|
303 |
guez |
22 |
IF (cpartiel) THEN |
304 |
guez |
3 |
|
305 |
guez |
22 |
! print*,'Dans partiel k=',k |
306 |
guez |
3 |
|
307 |
guez |
22 |
! Calcul de l'eau condensee et de la fraction nuageuse et de l'eau |
308 |
|
|
! nuageuse a partir des PDF de Sandrine Bony. |
309 |
|
|
! rneb : fraction nuageuse |
310 |
|
|
! zqn : eau totale dans le nuage |
311 |
|
|
! zcond : eau condensee moyenne dans la maille. |
312 |
|
|
! on prend en compte le réchauffement qui diminue la partie condensee |
313 |
guez |
3 |
|
314 |
guez |
22 |
! Version avec les raqts |
315 |
guez |
3 |
|
316 |
guez |
22 |
IF (iflag_pdf==0) THEN |
317 |
guez |
3 |
|
318 |
guez |
22 |
DO i = 1, klon |
319 |
|
|
zdelq = min(ratqs(i,k),0.99)*zq(i) |
320 |
|
|
rneb(i,k) = (zq(i)+zdelq-zqs(i))/(2.0*zdelq) |
321 |
|
|
zqn(i) = (zq(i)+zdelq+zqs(i))/2.0 |
322 |
|
|
END DO |
323 |
guez |
3 |
|
324 |
guez |
22 |
ELSE |
325 |
|
|
|
326 |
|
|
! Version avec les nouvelles PDFs. |
327 |
|
|
DO i = 1, klon |
328 |
|
|
IF (zq(i)<1.E-15) THEN |
329 |
|
|
!C Lionel GUEZ print*,'ZQ(',i,',',k,')=',zq(i) |
330 |
|
|
zq(i) = 1.E-15 |
331 |
|
|
END IF |
332 |
|
|
END DO |
333 |
|
|
DO i = 1, klon |
334 |
|
|
zpdf_sig(i) = ratqs(i,k)*zq(i) |
335 |
|
|
zpdf_k(i) = -sqrt(log(1.+(zpdf_sig(i)/zq(i))**2)) |
336 |
|
|
zpdf_delta(i) = log(zq(i)/zqs(i)) |
337 |
|
|
zpdf_a(i) = zpdf_delta(i)/(zpdf_k(i)*sqrt(2.)) |
338 |
|
|
zpdf_b(i) = zpdf_k(i)/(2.*sqrt(2.)) |
339 |
|
|
zpdf_e1(i) = zpdf_a(i) - zpdf_b(i) |
340 |
|
|
zpdf_e1(i) = sign(min(abs(zpdf_e1(i)),5.),zpdf_e1(i)) |
341 |
guez |
36 |
zpdf_e1(i) = 1. - nr_erf(zpdf_e1(i)) |
342 |
guez |
22 |
zpdf_e2(i) = zpdf_a(i) + zpdf_b(i) |
343 |
|
|
zpdf_e2(i) = sign(min(abs(zpdf_e2(i)),5.),zpdf_e2(i)) |
344 |
guez |
36 |
zpdf_e2(i) = 1. - nr_erf(zpdf_e2(i)) |
345 |
guez |
22 |
IF (zpdf_e1(i)<1.E-10) THEN |
346 |
|
|
rneb(i,k) = 0. |
347 |
|
|
zqn(i) = zqs(i) |
348 |
|
|
ELSE |
349 |
|
|
rneb(i,k) = 0.5*zpdf_e1(i) |
350 |
|
|
zqn(i) = zq(i)*zpdf_e2(i)/zpdf_e1(i) |
351 |
|
|
END IF |
352 |
|
|
|
353 |
|
|
END DO |
354 |
|
|
|
355 |
|
|
|
356 |
|
|
END IF |
357 |
|
|
! iflag_pdf |
358 |
guez |
3 |
DO i = 1, klon |
359 |
guez |
22 |
IF (rneb(i,k)<=0.0) zqn(i) = 0.0 |
360 |
|
|
IF (rneb(i,k)>=1.0) zqn(i) = zq(i) |
361 |
|
|
rneb(i,k) = max(0.0,min(1.0,rneb(i,k))) |
362 |
|
|
! zcond(i) = MAX(0.0,zqn(i)-zqs(i))*rneb(i,k)/(1.+zdqs(i)) |
363 |
|
|
! On ne divise pas par 1+zdqs pour forcer a avoir l'eau predite par |
364 |
|
|
! la convection. |
365 |
|
|
! ATTENTION !!! Il va falloir verifier tout ca. |
366 |
|
|
zcond(i) = max(0.0,zqn(i)-zqs(i))*rneb(i,k) |
367 |
|
|
! print*,'ZDQS ',zdqs(i) |
368 |
|
|
!--Olivier |
369 |
|
|
rhcl(i,k) = (zqs(i)+zq(i)-zdelq)/2./zqs(i) |
370 |
|
|
IF (rneb(i,k)<=0.0) rhcl(i,k) = zq(i)/zqs(i) |
371 |
|
|
IF (rneb(i,k)>=1.0) rhcl(i,k) = 1.0 |
372 |
|
|
!--fin |
373 |
|
|
END DO |
374 |
|
|
ELSE |
375 |
guez |
3 |
DO i = 1, klon |
376 |
guez |
22 |
IF (zq(i)>zqs(i)) THEN |
377 |
|
|
rneb(i,k) = 1.0 |
378 |
|
|
ELSE |
379 |
|
|
rneb(i,k) = 0.0 |
380 |
|
|
END IF |
381 |
|
|
zcond(i) = max(0.0,zq(i)-zqs(i))/(1.+zdqs(i)) |
382 |
|
|
END DO |
383 |
|
|
END IF |
384 |
|
|
|
385 |
|
|
DO i = 1, klon |
386 |
|
|
zq(i) = zq(i) - zcond(i) |
387 |
|
|
! zt(i) = zt(i) + zcond(i) * RLVTT/RCPD |
388 |
|
|
zt(i) = zt(i) + zcond(i)*rlvtt/rcpd/(1.0+rvtmp2*zq(i)) |
389 |
|
|
END DO |
390 |
|
|
|
391 |
|
|
! Partager l'eau condensee en precipitation et eau liquide nuageuse |
392 |
|
|
|
393 |
|
|
DO i = 1, klon |
394 |
|
|
IF (rneb(i,k)>0.0) THEN |
395 |
|
|
zoliq(i) = zcond(i) |
396 |
|
|
zrho(i) = pplay(i,k)/zt(i)/rd |
397 |
|
|
zdz(i) = (paprs(i,k)-paprs(i,k+1))/(zrho(i)*rg) |
398 |
|
|
zfice(i) = 1.0 - (zt(i)-ztglace)/(273.13-ztglace) |
399 |
|
|
zfice(i) = min(max(zfice(i),0.0),1.0) |
400 |
|
|
zfice(i) = zfice(i)**nexpo |
401 |
|
|
zneb(i) = max(rneb(i,k),seuil_neb) |
402 |
|
|
radliq(i,k) = zoliq(i)/float(ninter+1) |
403 |
|
|
END IF |
404 |
|
|
END DO |
405 |
|
|
|
406 |
|
|
DO n = 1, ninter |
407 |
|
|
DO i = 1, klon |
408 |
|
|
IF (rneb(i,k)>0.0) THEN |
409 |
|
|
zrhol(i) = zrho(i)*zoliq(i)/zneb(i) |
410 |
|
|
|
411 |
|
|
IF (ptconv(i,k)) THEN |
412 |
|
|
zcl(i) = cld_lc_con |
413 |
|
|
zct(i) = 1./cld_tau_con |
414 |
|
|
ELSE |
415 |
|
|
zcl(i) = cld_lc_lsc |
416 |
|
|
zct(i) = 1./cld_tau_lsc |
417 |
|
|
END IF |
418 |
|
|
! quantité d'eau à élminier. |
419 |
|
|
zchau(i) = zct(i)*dtime/float(ninter)*zoliq(i)* & |
420 |
|
|
(1.0-exp(-(zoliq(i)/zneb(i)/zcl(i))**2))*(1.-zfice(i)) |
421 |
|
|
! meme chose pour la glace. |
422 |
|
|
IF (ptconv(i,k)) THEN |
423 |
|
|
zfroi(i) = dtime/float(ninter)/zdz(i)*zoliq(i)* & |
424 |
|
|
fallvc(zrhol(i))*zfice(i) |
425 |
|
|
ELSE |
426 |
|
|
zfroi(i) = dtime/float(ninter)/zdz(i)*zoliq(i)* & |
427 |
|
|
fallvs(zrhol(i))*zfice(i) |
428 |
|
|
END IF |
429 |
|
|
ztot(i) = zchau(i) + zfroi(i) |
430 |
|
|
IF (zneb(i)==seuil_neb) ztot(i) = 0.0 |
431 |
|
|
ztot(i) = min(max(ztot(i),0.0),zoliq(i)) |
432 |
|
|
zoliq(i) = max(zoliq(i)-ztot(i),0.0) |
433 |
|
|
radliq(i,k) = radliq(i,k) + zoliq(i)/float(ninter+1) |
434 |
|
|
END IF |
435 |
|
|
END DO |
436 |
|
|
END DO |
437 |
|
|
|
438 |
|
|
DO i = 1, klon |
439 |
|
|
IF (rneb(i,k)>0.0) THEN |
440 |
|
|
d_ql(i,k) = zoliq(i) |
441 |
|
|
zrfl(i) = zrfl(i) + max(zcond(i)-zoliq(i),0.0)*(paprs(i,k)-paprs(i & |
442 |
|
|
,k+1))/(rg*dtime) |
443 |
|
|
END IF |
444 |
|
|
IF (zt(i)<rtt) THEN |
445 |
|
|
psfl(i,k) = zrfl(i) |
446 |
|
|
ELSE |
447 |
|
|
prfl(i,k) = zrfl(i) |
448 |
|
|
END IF |
449 |
|
|
END DO |
450 |
|
|
|
451 |
|
|
! Calculer les tendances de q et de t: |
452 |
|
|
|
453 |
|
|
DO i = 1, klon |
454 |
|
|
d_q(i,k) = zq(i) - q(i,k) |
455 |
|
|
d_t(i,k) = zt(i) - t(i,k) |
456 |
|
|
END DO |
457 |
|
|
|
458 |
|
|
!AA--------------- Calcul du lessivage stratiforme ------------- |
459 |
|
|
|
460 |
|
|
DO i = 1, klon |
461 |
|
|
zprec_cond(i) = max(zcond(i)-zoliq(i),0.0)* & |
462 |
|
|
(paprs(i,k)-paprs(i,k+1))/rg |
463 |
|
|
IF (rneb(i,k)>0.0 .AND. zprec_cond(i)>0.) THEN |
464 |
|
|
!AA lessivage nucleation LMD5 dans la couche elle-meme |
465 |
|
|
IF (t(i,k)>=ztglace) THEN |
466 |
|
|
zalpha_tr = a_tr_sca(3) |
467 |
|
|
ELSE |
468 |
|
|
zalpha_tr = a_tr_sca(4) |
469 |
|
|
END IF |
470 |
|
|
zfrac_lessi = 1. - exp(zalpha_tr*zprec_cond(i)/zneb(i)) |
471 |
|
|
pfrac_nucl(i,k) = pfrac_nucl(i,k)*(1.-zneb(i)*zfrac_lessi) |
472 |
|
|
frac_nucl(i,k) = 1. - zneb(i)*zfrac_lessi |
473 |
|
|
|
474 |
|
|
! nucleation avec un facteur -1 au lieu de -0.5 |
475 |
|
|
zfrac_lessi = 1. - exp(-zprec_cond(i)/zneb(i)) |
476 |
|
|
pfrac_1nucl(i,k) = pfrac_1nucl(i,k)*(1.-zneb(i)*zfrac_lessi) |
477 |
|
|
END IF |
478 |
|
|
|
479 |
|
|
|
480 |
|
|
END DO |
481 |
|
|
!AA Lessivage par impaction dans les couches en-dessous |
482 |
|
|
! boucle sur i |
483 |
|
|
DO kk = k - 1, 1, -1 |
484 |
|
|
DO i = 1, klon |
485 |
|
|
IF (rneb(i,k)>0.0 .AND. zprec_cond(i)>0.) THEN |
486 |
|
|
IF (t(i,kk)>=ztglace) THEN |
487 |
|
|
zalpha_tr = a_tr_sca(1) |
488 |
|
|
ELSE |
489 |
|
|
zalpha_tr = a_tr_sca(2) |
490 |
|
|
END IF |
491 |
|
|
zfrac_lessi = 1. - exp(zalpha_tr*zprec_cond(i)/zneb(i)) |
492 |
|
|
pfrac_impa(i,kk) = pfrac_impa(i,kk)*(1.-zneb(i)*zfrac_lessi) |
493 |
|
|
frac_impa(i,kk) = 1. - zneb(i)*zfrac_lessi |
494 |
|
|
END IF |
495 |
|
|
END DO |
496 |
|
|
END DO |
497 |
|
|
|
498 |
|
|
!AA---------------------------------------------------------- |
499 |
|
|
! FIN DE BOUCLE SUR K |
500 |
|
|
end DO |
501 |
|
|
|
502 |
|
|
!AA----------------------------------------------------------- |
503 |
|
|
|
504 |
|
|
! Pluie ou neige au sol selon la temperature de la 1ere couche |
505 |
|
|
|
506 |
|
|
DO i = 1, klon |
507 |
|
|
IF ((t(i,1)+d_t(i,1))<rtt) THEN |
508 |
|
|
snow(i) = zrfl(i) |
509 |
|
|
zlh_solid(i) = rlstt - rlvtt |
510 |
|
|
ELSE |
511 |
|
|
rain(i) = zrfl(i) |
512 |
|
|
zlh_solid(i) = 0. |
513 |
|
|
END IF |
514 |
|
|
END DO |
515 |
|
|
|
516 |
|
|
! For energy conservation : when snow is present, the solification |
517 |
|
|
! latent heat is considered. |
518 |
|
|
DO k = 1, klev |
519 |
|
|
DO i = 1, klon |
520 |
|
|
zcpair = rcpd*(1.0+rvtmp2*(q(i,k)+d_q(i,k))) |
521 |
|
|
zmair = (paprs(i,k)-paprs(i,k+1))/rg |
522 |
|
|
zm_solid = (prfl(i,k)-prfl(i,k+1)+psfl(i,k)-psfl(i,k+1))*dtime |
523 |
|
|
d_t(i,k) = d_t(i,k) + zlh_solid(i)*zm_solid/(zcpair*zmair) |
524 |
|
|
END DO |
525 |
|
|
END DO |
526 |
|
|
|
527 |
|
|
END SUBROUTINE fisrtilp |