1 | ! |
---|
2 | ! $Header$ |
---|
3 | ! |
---|
4 | MODULE surf_land_bucket_mod |
---|
5 | ! |
---|
6 | ! Surface land bucket module |
---|
7 | ! |
---|
8 | ! This module is used when no external land model is choosen. |
---|
9 | ! |
---|
10 | USE fonte_neige_mod |
---|
11 | USE calcul_fluxs_mod |
---|
12 | USE dimphy |
---|
13 | USE mod_grid_phy_lmdz |
---|
14 | USE mod_phys_lmdz_para |
---|
15 | |
---|
16 | IMPLICIT NONE |
---|
17 | |
---|
18 | CONTAINS |
---|
19 | |
---|
20 | SUBROUTINE surf_land_bucket(itime, jour, knon, knindex, debut, dtime,& |
---|
21 | tsurf, p1lay, tq_cdrag, precip_rain, precip_snow, temp_air, & |
---|
22 | spechum, petAcoef, peqAcoef, petBcoef, peqBcoef, pref, & |
---|
23 | u1_lay, v1_lay, rugoro, swnet, lwnet, & |
---|
24 | snow, qsol, agesno, tsoil, & |
---|
25 | qsurf, z0_new, alb1_new, alb2_new, evap, & |
---|
26 | fluxsens, fluxlat, tsurf_new, dflux_s, dflux_l) |
---|
27 | |
---|
28 | !**************************************************************************************** |
---|
29 | ! Bucket calculations for surface. |
---|
30 | ! |
---|
31 | INCLUDE "clesphys.h" |
---|
32 | INCLUDE "indicesol.h" |
---|
33 | INCLUDE "dimsoil.h" |
---|
34 | INCLUDE "YOMCST.h" |
---|
35 | |
---|
36 | ! Input variables |
---|
37 | !**************************************************************************************** |
---|
38 | INTEGER, INTENT(IN) :: itime, jour, knon |
---|
39 | INTEGER, DIMENSION(klon), INTENT(IN) :: knindex |
---|
40 | LOGICAL, INTENT(IN) :: debut |
---|
41 | REAL, INTENT(IN) :: dtime |
---|
42 | REAL, DIMENSION(klon), INTENT(IN) :: tsurf |
---|
43 | REAL, DIMENSION(klon), INTENT(IN) :: p1lay |
---|
44 | REAL, DIMENSION(klon), INTENT(IN) :: tq_cdrag |
---|
45 | REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow |
---|
46 | REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum |
---|
47 | REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef |
---|
48 | REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef |
---|
49 | REAL, DIMENSION(klon), INTENT(IN) :: pref |
---|
50 | REAL, DIMENSION(klon), INTENT(IN) :: u1_lay, v1_lay |
---|
51 | REAL, DIMENSION(klon), INTENT(IN) :: rugoro |
---|
52 | REAL, DIMENSION(klon), INTENT(IN) :: swnet, lwnet |
---|
53 | |
---|
54 | ! In/Output variables |
---|
55 | !**************************************************************************************** |
---|
56 | REAL, DIMENSION(klon), INTENT(INOUT) :: snow, qsol |
---|
57 | REAL, DIMENSION(klon), INTENT(INOUT) :: agesno |
---|
58 | REAL, DIMENSION(klon, nsoilmx), INTENT(INOUT) :: tsoil |
---|
59 | |
---|
60 | ! Output variables |
---|
61 | !**************************************************************************************** |
---|
62 | REAL, DIMENSION(klon), INTENT(OUT) :: qsurf |
---|
63 | REAL, DIMENSION(klon), INTENT(OUT) :: z0_new |
---|
64 | REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new, alb2_new |
---|
65 | REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat |
---|
66 | REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new |
---|
67 | REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l |
---|
68 | |
---|
69 | ! Local variables |
---|
70 | !**************************************************************************************** |
---|
71 | REAL, DIMENSION(klon) :: soilcap, soilflux |
---|
72 | REAL, DIMENSION(klon) :: cal, beta, dif_grnd, capsol |
---|
73 | REAL, DIMENSION(klon) :: alb_neig, alb_lim |
---|
74 | REAL, DIMENSION(klon) :: zfra |
---|
75 | REAL, DIMENSION(klon) :: radsol ! total net radiance at surface |
---|
76 | INTEGER :: i |
---|
77 | ! |
---|
78 | !**************************************************************************************** |
---|
79 | |
---|
80 | |
---|
81 | ! |
---|
82 | !* Read from limit.nc : albedo(alb_lim), length of rugosity(z0_new) |
---|
83 | ! |
---|
84 | CALL interfsur_lim(itime, dtime, jour, & |
---|
85 | knon, knindex, debut, & |
---|
86 | alb_lim, z0_new) |
---|
87 | |
---|
88 | ! |
---|
89 | !* Calcultaion of fluxes |
---|
90 | ! |
---|
91 | |
---|
92 | ! calculate total absorbed radiance at surface |
---|
93 | radsol(:) = 0.0 |
---|
94 | radsol(1:knon) = swnet(1:knon) + lwnet(1:knon) |
---|
95 | |
---|
96 | ! calculate constants |
---|
97 | CALL calbeta(dtime, is_ter, knon, snow, qsol, beta, capsol, dif_grnd) |
---|
98 | |
---|
99 | ! calculate temperature, heat capacity and conduction flux in soil |
---|
100 | IF (soil_model) THEN |
---|
101 | CALL soil(dtime, is_ter, knon, snow, tsurf, tsoil, soilcap, soilflux) |
---|
102 | DO i=1, knon |
---|
103 | cal(i) = RCPD / soilcap(i) |
---|
104 | radsol(i) = radsol(i) + soilflux(i) |
---|
105 | END DO |
---|
106 | ELSE |
---|
107 | cal(:) = RCPD * capsol(:) |
---|
108 | ENDIF |
---|
109 | |
---|
110 | CALL calcul_fluxs(knon, is_ter, dtime, & |
---|
111 | tsurf, p1lay, cal, beta, tq_cdrag, pref, & |
---|
112 | precip_rain, precip_snow, snow, qsurf, & |
---|
113 | radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
---|
114 | petAcoef, peqAcoef, petBcoef, peqBcoef, & |
---|
115 | tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
---|
116 | |
---|
117 | ! |
---|
118 | !* Calculate snow height, run_off, age of snow |
---|
119 | ! |
---|
120 | CALL fonte_neige( knon, is_ter, knindex, dtime, & |
---|
121 | tsurf, precip_rain, precip_snow, & |
---|
122 | snow, qsol, tsurf_new, evap) |
---|
123 | ! |
---|
124 | !* Calculate the age of snow |
---|
125 | ! |
---|
126 | CALL albsno(klon,knon,dtime,agesno(:),alb_neig(:), precip_snow(:)) |
---|
127 | |
---|
128 | WHERE (snow(1 : knon) .LT. 0.0001) agesno(1 : knon) = 0. |
---|
129 | |
---|
130 | DO i=1, knon |
---|
131 | zfra(i) = MAX(0.0,MIN(1.0, snow(i)/(snow(i)+10.0))) |
---|
132 | alb_lim(i) = alb_neig(i) *zfra(i) + alb_lim(i)*(1.0-zfra(i)) |
---|
133 | END DO |
---|
134 | |
---|
135 | ! |
---|
136 | !* Return albedo : |
---|
137 | ! alb1_new and alb2_new are here given the same values |
---|
138 | ! |
---|
139 | alb1_new(:) = 0.0 |
---|
140 | alb2_new(:) = 0.0 |
---|
141 | alb1_new(1:knon) = alb_lim(1:knon) |
---|
142 | alb2_new(1:knon) = alb_lim(1:knon) |
---|
143 | |
---|
144 | ! |
---|
145 | !* Calculate the rugosity |
---|
146 | ! |
---|
147 | z0_new = SQRT(z0_new**2+rugoro**2) |
---|
148 | |
---|
149 | ! |
---|
150 | !* End |
---|
151 | ! |
---|
152 | END SUBROUTINE surf_land_bucket |
---|
153 | ! |
---|
154 | !**************************************************************************************** |
---|
155 | ! |
---|
156 | SUBROUTINE interfsur_lim(itime, dtime, jour, & |
---|
157 | knon, knindex, debut, & |
---|
158 | lmt_alb_p, lmt_rug_p) |
---|
159 | |
---|
160 | ! Cette routine sert d'interface entre le modele atmospherique et un fichier |
---|
161 | ! de conditions aux limites |
---|
162 | ! |
---|
163 | ! L. Fairhead 02/2000 |
---|
164 | ! |
---|
165 | ! input: |
---|
166 | ! itime numero du pas de temps courant |
---|
167 | ! dtime pas de temps de la physique (en s) |
---|
168 | ! jour jour a lire dans l'annee |
---|
169 | ! knon nombre de points dans le domaine a traiter |
---|
170 | ! knindex index des points de la surface a traiter |
---|
171 | ! debut logical: 1er appel a la physique (initialisation) |
---|
172 | ! |
---|
173 | ! output: |
---|
174 | ! lmt_alb_p Albedo lu |
---|
175 | ! lmt_rug_p longueur de rugosite lue |
---|
176 | |
---|
177 | INCLUDE "netcdf.inc" |
---|
178 | |
---|
179 | ! Input variables |
---|
180 | !**************************************************************************************** |
---|
181 | INTEGER, INTENT(IN) :: itime |
---|
182 | REAL , INTENT(IN) :: dtime |
---|
183 | INTEGER, INTENT(IN) :: jour |
---|
184 | INTEGER, INTENT(IN) :: knon |
---|
185 | INTEGER, DIMENSION(klon_loc), INTENT(IN) :: knindex |
---|
186 | LOGICAL, INTENT(IN) :: debut |
---|
187 | |
---|
188 | ! Output variables |
---|
189 | !**************************************************************************************** |
---|
190 | REAL, INTENT(out), DIMENSION(klon_loc) :: lmt_alb_p |
---|
191 | REAL, INTENT(out), DIMENSION(klon_loc) :: lmt_rug_p |
---|
192 | |
---|
193 | ! Local variables with attribute SAVE |
---|
194 | !**************************************************************************************** |
---|
195 | INTEGER,SAVE :: lmt_pas ! frequence de lecture des conditions limites |
---|
196 | ! (en pas de physique) |
---|
197 | !$OMP THREADPRIVATE(lmt_pas) |
---|
198 | LOGICAL,SAVE :: deja_lu_sur ! pour indiquer que le jour a lire a deja |
---|
199 | ! lu pour une surface precedente |
---|
200 | !$OMP THREADPRIVATE(deja_lu_sur) |
---|
201 | INTEGER,SAVE :: jour_lu_sur |
---|
202 | !$OMP THREADPRIVATE(jour_lu_sur) |
---|
203 | CHARACTER (len = 20),SAVE :: fich ='limit.nc' |
---|
204 | !$OMP THREADPRIVATE(fich) |
---|
205 | LOGICAL,SAVE :: check = .FALSE. |
---|
206 | !$OMP THREADPRIVATE(check) |
---|
207 | ! Champs lus dans le fichier de CL |
---|
208 | REAL, ALLOCATABLE , SAVE, DIMENSION(:) :: alb_lu_p, rug_lu_p |
---|
209 | !$OMP THREADPRIVATE(alb_lu_p, rug_lu_p) |
---|
210 | |
---|
211 | ! quelques variables pour netcdf |
---|
212 | INTEGER ,SAVE :: nid, nvarid |
---|
213 | !$OMP THREADPRIVATE(nid, nvarid) |
---|
214 | INTEGER, DIMENSION(2),SAVE :: start, epais |
---|
215 | !$OMP THREADPRIVATE(start, epais) |
---|
216 | |
---|
217 | ! Other local variables |
---|
218 | !**************************************************************************************** |
---|
219 | INTEGER :: ii, ierr |
---|
220 | CHARACTER (len = 20) :: modname = 'interfsur_lim' |
---|
221 | CHARACTER (len = 80) :: abort_message |
---|
222 | REAL, DIMENSION(klon_glo) :: alb_lu |
---|
223 | REAL, DIMENSION(klon_glo) :: rug_lu |
---|
224 | |
---|
225 | ! |
---|
226 | ! End delaration |
---|
227 | !**************************************************************************************** |
---|
228 | |
---|
229 | IF (debut) THEN |
---|
230 | lmt_pas = NINT(86400./dtime * 1.0) ! pour une lecture une fois par jour |
---|
231 | jour_lu_sur = jour - 1 |
---|
232 | ALLOCATE(alb_lu_p(klon_loc)) |
---|
233 | ALLOCATE(rug_lu_p(klon_loc)) |
---|
234 | ENDIF |
---|
235 | |
---|
236 | IF ((jour - jour_lu_sur) /= 0) deja_lu_sur = .FALSE. |
---|
237 | |
---|
238 | IF (check) WRITE(*,*) modname,':: jour_lu_sur, deja_lu_sur', jour_lu_sur, deja_lu_sur |
---|
239 | IF (check) WRITE(*,*) modname,':: itime, lmt_pas', itime, lmt_pas |
---|
240 | IF (check) CALL flush(6) |
---|
241 | |
---|
242 | ! |
---|
243 | ! Tester d'abord si c'est le moment de lire le fichier |
---|
244 | ! |
---|
245 | IF (MOD(itime-1, lmt_pas) == 0 .AND. .NOT. deja_lu_sur) THEN |
---|
246 | |
---|
247 | ! |
---|
248 | ! Ouverture et lecture du fichier |
---|
249 | ! |
---|
250 | !$OMP MASTER |
---|
251 | IF (is_mpi_root) THEN |
---|
252 | fich = TRIM(fich) |
---|
253 | IF (check) WRITE(*,*)modname,' ouverture fichier ',fich |
---|
254 | IF (check) CALL flush(6) |
---|
255 | ierr = NF_OPEN (fich, NF_NOWRITE,nid) |
---|
256 | IF (ierr.NE.NF_NOERR) THEN |
---|
257 | abort_message = 'Pb d''ouverture du fichier de conditions aux limites' |
---|
258 | CALL abort_gcm(modname,abort_message,1) |
---|
259 | ENDIF |
---|
260 | ! |
---|
261 | ! La tranche de donnees a lire: |
---|
262 | start(1) = 1 |
---|
263 | start(2) = jour |
---|
264 | epais(1) = klon_glo |
---|
265 | epais(2) = 1 |
---|
266 | ! |
---|
267 | ! Lecture albedo |
---|
268 | ierr = NF_INQ_VARID(nid, 'ALB', nvarid) |
---|
269 | IF (ierr /= NF_NOERR) THEN |
---|
270 | abort_message = 'Le champ <ALB> est absent' |
---|
271 | CALL abort_gcm(modname,abort_message,1) |
---|
272 | ENDIF |
---|
273 | #ifdef NC_DOUBLE |
---|
274 | ierr = NF_GET_VARA_DOUBLE(nid,nvarid,start,epais, alb_lu) |
---|
275 | #else |
---|
276 | ierr = NF_GET_VARA_REAL(nid,nvarid,start,epais, alb_lu) |
---|
277 | #endif |
---|
278 | IF (ierr /= NF_NOERR) THEN |
---|
279 | abort_message = 'Lecture echouee pour <ALB>' |
---|
280 | CALL abort_gcm(modname,abort_message,1) |
---|
281 | ENDIF |
---|
282 | ! |
---|
283 | ! Lecture rugosite! |
---|
284 | ierr = NF_INQ_VARID(nid, 'RUG', nvarid) |
---|
285 | IF (ierr /= NF_NOERR) THEN |
---|
286 | abort_message = 'Le champ <RUG> est absent' |
---|
287 | CALL abort_gcm(modname,abort_message,1) |
---|
288 | ENDIF |
---|
289 | #ifdef NC_DOUBLE |
---|
290 | ierr = NF_GET_VARA_DOUBLE(nid,nvarid,start,epais, rug_lu) |
---|
291 | #else |
---|
292 | ierr = NF_GET_VARA_REAL(nid,nvarid,start,epais, rug_lu) |
---|
293 | #endif |
---|
294 | IF (ierr /= NF_NOERR) THEN |
---|
295 | abort_message = 'Lecture echouee pour <RUG>' |
---|
296 | CALL abort_gcm(modname,abort_message,1) |
---|
297 | ENDIF |
---|
298 | |
---|
299 | ! |
---|
300 | ! Fin de lecture |
---|
301 | ierr = NF_CLOSE(nid) |
---|
302 | |
---|
303 | ENDIF ! is_mpi_root |
---|
304 | !$OMP END MASTER |
---|
305 | |
---|
306 | CALL Scatter(alb_lu,alb_lu_p) |
---|
307 | CALL Scatter(rug_lu,rug_lu_p) |
---|
308 | |
---|
309 | deja_lu_sur = .TRUE. |
---|
310 | jour_lu_sur = jour |
---|
311 | |
---|
312 | ENDIF |
---|
313 | |
---|
314 | ! |
---|
315 | ! Recopie des variables dans les champs de sortie |
---|
316 | ! |
---|
317 | lmt_alb_p(:) = 999999. |
---|
318 | lmt_rug_p(:) = 999999. |
---|
319 | DO ii = 1, knon |
---|
320 | lmt_alb_p(ii) = alb_lu_p(knindex(ii)) |
---|
321 | lmt_rug_p(ii) = rug_lu_p(knindex(ii)) |
---|
322 | ENDDO |
---|
323 | |
---|
324 | |
---|
325 | END SUBROUTINE interfsur_lim |
---|
326 | ! |
---|
327 | !**************************************************************************************** |
---|
328 | ! |
---|
329 | END MODULE surf_land_bucket_mod |
---|