1 |
module clqh_m |
2 |
|
3 |
IMPLICIT none |
4 |
|
5 |
contains |
6 |
|
7 |
SUBROUTINE clqh(dtime, itime, jour, debut, rlat, knon, nisurf, knindex, & |
8 |
pctsrf, soil_model, tsoil, qsol, ok_veget, ocean, rmu0, co2_ppm, & |
9 |
rugos, rugoro, u1lay, v1lay, coef, t, q, ts, paprs, pplay, delp, & |
10 |
radsol, albedo, alblw, snow, qsurf, precip_rain, precip_snow, fder, & |
11 |
swnet, fluxlat, pctsrf_new, agesno, d_t, d_q, d_ts, z0_new, flux_t, & |
12 |
flux_q, dflux_s, dflux_l, fqcalving, ffonte, run_off_lic_0, flux_o, & |
13 |
flux_g, tslab, seaice) |
14 |
|
15 |
! Author: Z. X. Li (LMD/CNRS) |
16 |
! Date: 1993/08/18 |
17 |
! Objet : diffusion verticale de "q" et de "h" |
18 |
|
19 |
USE conf_phys_m, ONLY : iflag_pbl |
20 |
USE dimens_m, ONLY : iim, jjm |
21 |
USE dimphy, ONLY : klev, klon, zmasq |
22 |
USE dimsoil, ONLY : nsoilmx |
23 |
USE indicesol, ONLY : is_ter, nbsrf |
24 |
USE interfsurf_hq_m, ONLY : interfsurf_hq |
25 |
USE suphec_m, ONLY : rcpd, rd, rg, rkappa |
26 |
|
27 |
! Arguments: |
28 |
INTEGER, intent(in):: knon |
29 |
REAL, intent(in):: dtime ! intervalle du temps (s) |
30 |
REAL u1lay(klon) ! vitesse u de la 1ere couche (m/s) |
31 |
REAL v1lay(klon) ! vitesse v de la 1ere couche (m/s) |
32 |
|
33 |
REAL, intent(in):: coef(:, :) ! (knon, klev) |
34 |
! Le coefficient d'echange (m**2/s) multiplie par le cisaillement |
35 |
! du vent (dV/dz). La premiere valeur indique la valeur de Cdrag |
36 |
! (sans unite). |
37 |
|
38 |
REAL t(klon, klev) ! temperature (K) |
39 |
REAL q(klon, klev) ! humidite specifique (kg/kg) |
40 |
REAL ts(klon) ! temperature du sol (K) |
41 |
REAL evap(klon) ! evaporation au sol |
42 |
REAL paprs(klon, klev+1) ! pression a inter-couche (Pa) |
43 |
REAL pplay(klon, klev) ! pression au milieu de couche (Pa) |
44 |
REAL delp(klon, klev) ! epaisseur de couche en pression (Pa) |
45 |
REAL radsol(klon) ! ray. net au sol (Solaire+IR) W/m2 |
46 |
REAL albedo(klon) ! albedo de la surface |
47 |
REAL alblw(klon) |
48 |
REAL snow(klon) ! hauteur de neige |
49 |
REAL qsurf(klon) ! humidite de l'air au dessus de la surface |
50 |
real precip_rain(klon), precip_snow(klon) |
51 |
REAL agesno(klon) |
52 |
REAL rugoro(klon) |
53 |
REAL run_off_lic_0(klon)! runof glacier au pas de temps precedent |
54 |
integer, intent(in):: jour ! jour de l'annee en cours |
55 |
real, intent(in):: rmu0(klon) ! cosinus de l'angle solaire zenithal |
56 |
real rugos(klon) ! rugosite |
57 |
integer knindex(klon) |
58 |
real, intent(in):: pctsrf(klon, nbsrf) |
59 |
real, intent(in):: rlat(klon) |
60 |
logical ok_veget |
61 |
REAL co2_ppm ! taux CO2 atmosphere |
62 |
character(len=*), intent(in):: ocean |
63 |
|
64 |
REAL d_t(klon, klev) ! incrementation de "t" |
65 |
REAL d_q(klon, klev) ! incrementation de "q" |
66 |
REAL d_ts(klon) ! incrementation de "ts" |
67 |
REAL flux_t(klon, klev) ! (diagnostic) flux de la chaleur |
68 |
! sensible, flux de Cp*T, positif vers |
69 |
! le bas: j/(m**2 s) c.a.d.: W/m2 |
70 |
REAL flux_q(klon, klev) ! flux de la vapeur d'eau:kg/(m**2 s) |
71 |
REAL dflux_s(klon) ! derivee du flux sensible dF/dTs |
72 |
REAL dflux_l(klon) ! derivee du flux latent dF/dTs |
73 |
!IM cf JLD |
74 |
! Flux thermique utiliser pour fondre la neige |
75 |
REAL ffonte(klon) |
76 |
! Flux d'eau "perdue" par la surface et nécessaire pour que limiter la |
77 |
! hauteur de neige, en kg/m2/s |
78 |
REAL fqcalving(klon) |
79 |
!IM "slab" ocean |
80 |
REAL tslab(klon) !temperature du slab ocean (K) (OCEAN='slab ') |
81 |
REAL seaice(klon) ! glace de mer en kg/m2 |
82 |
REAL flux_o(klon) ! flux entre l'ocean et l'atmosphere W/m2 |
83 |
REAL flux_g(klon) ! flux entre l'ocean et la glace de mer W/m2 |
84 |
|
85 |
INTEGER i, k |
86 |
REAL zx_cq(klon, klev) |
87 |
REAL zx_dq(klon, klev) |
88 |
REAL zx_ch(klon, klev) |
89 |
REAL zx_dh(klon, klev) |
90 |
REAL zx_buf1(klon) |
91 |
REAL zx_buf2(klon) |
92 |
REAL zx_coef(klon, klev) |
93 |
REAL local_h(klon, klev) ! enthalpie potentielle |
94 |
REAL local_q(klon, klev) |
95 |
REAL local_ts(klon) |
96 |
REAL psref(klon) ! pression de reference pour temperature potent. |
97 |
REAL zx_pkh(klon, klev), zx_pkf(klon, klev) |
98 |
|
99 |
! contre-gradient pour la vapeur d'eau: (kg/kg)/metre |
100 |
REAL gamq(klon, 2:klev) |
101 |
! contre-gradient pour la chaleur sensible: Kelvin/metre |
102 |
REAL gamt(klon, 2:klev) |
103 |
REAL z_gamaq(klon, 2:klev), z_gamah(klon, 2:klev) |
104 |
REAL zdelz |
105 |
|
106 |
! Rajout pour l'interface |
107 |
integer, intent(in):: itime |
108 |
integer nisurf |
109 |
logical, intent(in):: debut |
110 |
real zlev1(klon) |
111 |
real fder(klon) |
112 |
real temp_air(klon), spechum(klon) |
113 |
real epot_air(klon), ccanopy(klon) |
114 |
real tq_cdrag(klon), petAcoef(klon), peqAcoef(klon) |
115 |
real petBcoef(klon), peqBcoef(klon) |
116 |
real swnet(klon), swdown(klon) |
117 |
real p1lay(klon) |
118 |
!$$$C PB ajout pour soil |
119 |
LOGICAL, intent(in):: soil_model |
120 |
REAL tsoil(klon, nsoilmx) |
121 |
REAL qsol(klon) |
122 |
|
123 |
! Parametres de sortie |
124 |
real fluxsens(klon), fluxlat(klon) |
125 |
real tsurf_new(klon), alb_new(klon) |
126 |
real z0_new(klon) |
127 |
real pctsrf_new(klon, nbsrf) |
128 |
! JLD |
129 |
real zzpk |
130 |
|
131 |
character (len = 20) :: modname = 'Debut clqh' |
132 |
LOGICAL check |
133 |
PARAMETER (check=.false.) |
134 |
|
135 |
!---------------------------------------------------------------- |
136 |
|
137 |
if (check) THEN |
138 |
write(*, *) modname, ' nisurf=', nisurf |
139 |
!C call flush(6) |
140 |
endif |
141 |
|
142 |
if (check) THEN |
143 |
WRITE(*, *)' qsurf (min, max)' & |
144 |
, minval(qsurf(1:knon)), maxval(qsurf(1:knon)) |
145 |
!C call flush(6) |
146 |
ENDIF |
147 |
|
148 |
if (iflag_pbl.eq.1) then |
149 |
do k = 3, klev |
150 |
do i = 1, knon |
151 |
gamq(i, k)= 0.0 |
152 |
gamt(i, k)= -1.0e-03 |
153 |
enddo |
154 |
enddo |
155 |
do i = 1, knon |
156 |
gamq(i, 2) = 0.0 |
157 |
gamt(i, 2) = -2.5e-03 |
158 |
enddo |
159 |
else |
160 |
do k = 2, klev |
161 |
do i = 1, knon |
162 |
gamq(i, k) = 0.0 |
163 |
gamt(i, k) = 0.0 |
164 |
enddo |
165 |
enddo |
166 |
endif |
167 |
|
168 |
DO i = 1, knon |
169 |
psref(i) = paprs(i, 1) !pression de reference est celle au sol |
170 |
local_ts(i) = ts(i) |
171 |
ENDDO |
172 |
DO k = 1, klev |
173 |
DO i = 1, knon |
174 |
zx_pkh(i, k) = (psref(i)/paprs(i, k))**RKAPPA |
175 |
zx_pkf(i, k) = (psref(i)/pplay(i, k))**RKAPPA |
176 |
local_h(i, k) = RCPD * t(i, k) * zx_pkf(i, k) |
177 |
local_q(i, k) = q(i, k) |
178 |
ENDDO |
179 |
ENDDO |
180 |
|
181 |
! Convertir les coefficients en variables convenables au calcul: |
182 |
|
183 |
DO k = 2, klev |
184 |
DO i = 1, knon |
185 |
zx_coef(i, k) = coef(i, k)*RG/(pplay(i, k-1)-pplay(i, k)) & |
186 |
*(paprs(i, k)*2/(t(i, k)+t(i, k-1))/RD)**2 |
187 |
zx_coef(i, k) = zx_coef(i, k) * dtime*RG |
188 |
ENDDO |
189 |
ENDDO |
190 |
|
191 |
! Preparer les flux lies aux contre-gardients |
192 |
|
193 |
DO k = 2, klev |
194 |
DO i = 1, knon |
195 |
zdelz = RD * (t(i, k-1)+t(i, k))/2.0 / RG /paprs(i, k) & |
196 |
*(pplay(i, k-1)-pplay(i, k)) |
197 |
z_gamaq(i, k) = gamq(i, k) * zdelz |
198 |
z_gamah(i, k) = gamt(i, k) * zdelz *RCPD * zx_pkh(i, k) |
199 |
ENDDO |
200 |
ENDDO |
201 |
DO i = 1, knon |
202 |
zx_buf1(i) = zx_coef(i, klev) + delp(i, klev) |
203 |
zx_cq(i, klev) = (local_q(i, klev)*delp(i, klev) & |
204 |
-zx_coef(i, klev)*z_gamaq(i, klev))/zx_buf1(i) |
205 |
zx_dq(i, klev) = zx_coef(i, klev) / zx_buf1(i) |
206 |
|
207 |
zzpk=(pplay(i, klev)/psref(i))**RKAPPA |
208 |
zx_buf2(i) = zzpk*delp(i, klev) + zx_coef(i, klev) |
209 |
zx_ch(i, klev) = (local_h(i, klev)*zzpk*delp(i, klev) & |
210 |
-zx_coef(i, klev)*z_gamah(i, klev))/zx_buf2(i) |
211 |
zx_dh(i, klev) = zx_coef(i, klev) / zx_buf2(i) |
212 |
ENDDO |
213 |
DO k = klev-1, 2 , -1 |
214 |
DO i = 1, knon |
215 |
zx_buf1(i) = delp(i, k)+zx_coef(i, k) & |
216 |
+zx_coef(i, k+1)*(1.-zx_dq(i, k+1)) |
217 |
zx_cq(i, k) = (local_q(i, k)*delp(i, k) & |
218 |
+zx_coef(i, k+1)*zx_cq(i, k+1) & |
219 |
+zx_coef(i, k+1)*z_gamaq(i, k+1) & |
220 |
-zx_coef(i, k)*z_gamaq(i, k))/zx_buf1(i) |
221 |
zx_dq(i, k) = zx_coef(i, k) / zx_buf1(i) |
222 |
|
223 |
zzpk=(pplay(i, k)/psref(i))**RKAPPA |
224 |
zx_buf2(i) = zzpk*delp(i, k)+zx_coef(i, k) & |
225 |
+zx_coef(i, k+1)*(1.-zx_dh(i, k+1)) |
226 |
zx_ch(i, k) = (local_h(i, k)*zzpk*delp(i, k) & |
227 |
+zx_coef(i, k+1)*zx_ch(i, k+1) & |
228 |
+zx_coef(i, k+1)*z_gamah(i, k+1) & |
229 |
-zx_coef(i, k)*z_gamah(i, k))/zx_buf2(i) |
230 |
zx_dh(i, k) = zx_coef(i, k) / zx_buf2(i) |
231 |
ENDDO |
232 |
ENDDO |
233 |
|
234 |
DO i = 1, knon |
235 |
zx_buf1(i) = delp(i, 1) + zx_coef(i, 2)*(1.-zx_dq(i, 2)) |
236 |
zx_cq(i, 1) = (local_q(i, 1)*delp(i, 1) & |
237 |
+zx_coef(i, 2)*(z_gamaq(i, 2)+zx_cq(i, 2))) & |
238 |
/zx_buf1(i) |
239 |
zx_dq(i, 1) = -1. * RG / zx_buf1(i) |
240 |
|
241 |
zzpk=(pplay(i, 1)/psref(i))**RKAPPA |
242 |
zx_buf2(i) = zzpk*delp(i, 1) + zx_coef(i, 2)*(1.-zx_dh(i, 2)) |
243 |
zx_ch(i, 1) = (local_h(i, 1)*zzpk*delp(i, 1) & |
244 |
+zx_coef(i, 2)*(z_gamah(i, 2)+zx_ch(i, 2))) & |
245 |
/zx_buf2(i) |
246 |
zx_dh(i, 1) = -1. * RG / zx_buf2(i) |
247 |
ENDDO |
248 |
|
249 |
! Appel a interfsurf (appel generique) routine d'interface avec la surface |
250 |
|
251 |
! initialisation |
252 |
petAcoef =0. |
253 |
peqAcoef = 0. |
254 |
petBcoef =0. |
255 |
peqBcoef = 0. |
256 |
p1lay =0. |
257 |
|
258 |
petAcoef(1:knon) = zx_ch(1:knon, 1) |
259 |
peqAcoef(1:knon) = zx_cq(1:knon, 1) |
260 |
petBcoef(1:knon) = zx_dh(1:knon, 1) |
261 |
peqBcoef(1:knon) = zx_dq(1:knon, 1) |
262 |
tq_cdrag(1:knon) =coef(:knon, 1) |
263 |
temp_air(1:knon) =t(1:knon, 1) |
264 |
epot_air(1:knon) =local_h(1:knon, 1) |
265 |
spechum(1:knon)=q(1:knon, 1) |
266 |
p1lay(1:knon) = pplay(1:knon, 1) |
267 |
zlev1(1:knon) = delp(1:knon, 1) |
268 |
|
269 |
if(nisurf.eq.is_ter) THEN |
270 |
swdown(1:knon) = swnet(1:knon)/(1-albedo(1:knon)) |
271 |
else |
272 |
swdown(1:knon) = swnet(1:knon) |
273 |
endif |
274 |
ccanopy = co2_ppm |
275 |
|
276 |
CALL interfsurf_hq(itime, dtime, jour, rmu0, klon, iim, jjm, & |
277 |
nisurf, knon, knindex, pctsrf, rlat, debut, & |
278 |
ok_veget, soil_model, nsoilmx, tsoil, qsol, u1lay, v1lay, & |
279 |
temp_air, spechum, tq_cdrag, petAcoef, peqAcoef, & |
280 |
petBcoef, peqBcoef, precip_rain, precip_snow, & |
281 |
fder, rugos, rugoro, & |
282 |
snow, qsurf, ts, p1lay, psref, radsol, ocean, & |
283 |
evap, fluxsens, fluxlat, dflux_l, dflux_s, tsurf_new, & |
284 |
alb_new, alblw, z0_new, pctsrf_new, agesno, fqcalving, & |
285 |
ffonte, run_off_lic_0, flux_o, flux_g, tslab, seaice) |
286 |
|
287 |
do i = 1, knon |
288 |
flux_t(i, 1) = fluxsens(i) |
289 |
flux_q(i, 1) = - evap(i) |
290 |
d_ts(i) = tsurf_new(i) - ts(i) |
291 |
albedo(i) = alb_new(i) |
292 |
enddo |
293 |
|
294 |
!==== une fois on a zx_h_ts, on peut faire l'iteration ======== |
295 |
DO i = 1, knon |
296 |
local_h(i, 1) = zx_ch(i, 1) + zx_dh(i, 1)*flux_t(i, 1)*dtime |
297 |
local_q(i, 1) = zx_cq(i, 1) + zx_dq(i, 1)*flux_q(i, 1)*dtime |
298 |
ENDDO |
299 |
DO k = 2, klev |
300 |
DO i = 1, knon |
301 |
local_q(i, k) = zx_cq(i, k) + zx_dq(i, k)*local_q(i, k-1) |
302 |
local_h(i, k) = zx_ch(i, k) + zx_dh(i, k)*local_h(i, k-1) |
303 |
ENDDO |
304 |
ENDDO |
305 |
!====================================================================== |
306 |
!== flux_q est le flux de vapeur d'eau: kg/(m**2 s) positive vers bas |
307 |
!== flux_t est le flux de cpt (energie sensible): j/(m**2 s) |
308 |
DO k = 2, klev |
309 |
DO i = 1, knon |
310 |
flux_q(i, k) = (zx_coef(i, k)/RG/dtime) & |
311 |
* (local_q(i, k)-local_q(i, k-1)+z_gamaq(i, k)) |
312 |
flux_t(i, k) = (zx_coef(i, k)/RG/dtime) & |
313 |
* (local_h(i, k)-local_h(i, k-1)+z_gamah(i, k)) & |
314 |
/ zx_pkh(i, k) |
315 |
ENDDO |
316 |
ENDDO |
317 |
!====================================================================== |
318 |
! Calcul tendances |
319 |
DO k = 1, klev |
320 |
DO i = 1, knon |
321 |
d_t(i, k) = local_h(i, k)/zx_pkf(i, k)/RCPD - t(i, k) |
322 |
d_q(i, k) = local_q(i, k) - q(i, k) |
323 |
ENDDO |
324 |
ENDDO |
325 |
|
326 |
END SUBROUTINE clqh |
327 |
|
328 |
end module clqh_m |