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surf_ocean_mod.F90 @ 4500

Last change on this file since 4500 was 4446, checked in by Laurent Fairhead, 17 months ago
Merged trunk revisions from 4127 to 4443 (HEAD) into branch
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1	!
2	! $Id: surf_ocean_mod.F90 3395 2018-09-25 15:22:13Z lguez $
3	!
4	MODULE surf_ocean_mod
5
6	IMPLICIT NONE
7
8	CONTAINS
9	!
10	!******************************************************************************
11	!
12	SUBROUTINE surf_ocean(rlon, rlat, swnet, lwnet, alb1, &
13	windsp, rmu0, fder, tsurf_in, &
14	itime, dtime, jour, knon, knindex, &
15	p1lay, z1lay, cdragh, cdragm, precip_rain, precip_snow, temp_air, spechum, &
16	AcoefH, AcoefQ, BcoefH, BcoefQ, &
17	AcoefU, AcoefV, BcoefU, BcoefV, &
18	ps, u1, v1, gustiness, rugoro, pctsrf, &
19	snow, qsurf, agesno, &
20	z0m, z0h, SFRWL, alb_dir_new, alb_dif_new, evap, fluxsens, fluxlat, &
21	tsurf_new, dflux_s, dflux_l, lmt_bils, &
22	flux_u1, flux_v1, delta_sst, delta_sal, ds_ns, dt_ns, dter, dser, &
23	dt_ds, tkt, tks, taur, sss &
24	#ifdef ISO
25	& ,xtprecip_rain, xtprecip_snow,xtspechum,Roce, &
26	& xtsnow,xtevap,h1 &
27	#endif
28	& )
29
30	use albedo, only: alboc, alboc_cd
31	use bulk_flux_m, only: bulk_flux
32	USE dimphy, ONLY: klon, zmasq
33	USE surface_data, ONLY : type_ocean
34	USE ocean_forced_mod, ONLY : ocean_forced_noice
35	USE ocean_slab_mod, ONLY : ocean_slab_noice
36	USE ocean_cpl_mod, ONLY : ocean_cpl_noice
37	USE indice_sol_mod, ONLY : nbsrf, is_oce
38	#ifdef ISO
39	USE infotrac_phy, ONLY : ntraciso=>ntiso,niso
40	#ifdef ISOVERIF
41	USE isotopes_mod, ONLY: iso_eau,ridicule
42	USE isotopes_verif_mod
43	#endif
44	#endif
45	USE limit_read_mod
46	use config_ocean_skin_m, only: activate_ocean_skin
47	!
48	! This subroutine will make a call to ocean_XXX_noice according to the ocean mode (force,
49	! slab or couple). The calculations of albedo and rugosity for the ocean surface are
50	! done in here because they are identical for the different modes of ocean.
51
52
53	INCLUDE "YOMCST.h"
54
55	include "clesphys.h"
56	! for cycle_diurne and for iflag_z0_oce==-1 (prescribed z0)
57
58	! Input variables
59	!******************************************************************************
60	INTEGER, INTENT(IN) :: itime, jour, knon
61	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
62	REAL, INTENT(IN) :: dtime
63	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
64	REAL, DIMENSION(klon), INTENT(IN) :: swnet ! net shortwave radiation at surface
65	REAL, DIMENSION(klon), INTENT(IN) :: lwnet ! net longwave radiation at surface
66	REAL, DIMENSION(klon), INTENT(IN) :: alb1 ! albedo in visible SW interval
67	REAL, DIMENSION(klon), INTENT(IN) :: windsp ! wind at 10 m, in m s-1
68	REAL, DIMENSION(klon), INTENT(IN) :: rmu0
69	REAL, DIMENSION(klon), INTENT(IN) :: fder
70	REAL, DIMENSION(klon), INTENT(IN) :: tsurf_in ! defined only for subscripts 1:knon
71	REAL, DIMENSION(klon), INTENT(IN) :: p1lay,z1lay ! pression (Pa) et altitude (m) du premier niveau
72	REAL, DIMENSION(klon), INTENT(IN) :: cdragh
73	REAL, DIMENSION(klon), INTENT(IN) :: cdragm
74	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow
75	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
76	REAL, DIMENSION(klon), INTENT(IN) :: AcoefH, AcoefQ, BcoefH, BcoefQ
77	REAL, DIMENSION(klon), INTENT(IN) :: AcoefU, AcoefV, BcoefU, BcoefV
78	REAL, DIMENSION(klon), INTENT(IN) :: ps
79	REAL, DIMENSION(klon), INTENT(IN) :: u1, v1, gustiness
80	REAL, DIMENSION(klon), INTENT(IN) :: rugoro
81	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
82	#ifdef ISO
83	REAL, DIMENSION(ntraciso,klon), INTENT(IN) :: xtprecip_rain, xtprecip_snow
84	REAL, DIMENSION(ntraciso,klon), INTENT(IN) :: xtspechum
85	#endif
86
87	! In/Output variables
88	!******************************************************************************
89	REAL, DIMENSION(klon), INTENT(INOUT) :: snow
90	REAL, DIMENSION(klon), INTENT(INOUT) :: qsurf
91	REAL, DIMENSION(klon), INTENT(INOUT) :: agesno
92	REAL, DIMENSION(klon), INTENT(inOUT) :: z0h
93	#ifdef ISO
94	REAL, DIMENSION(niso,klon), INTENT(IN) :: xtsnow
95	REAL, DIMENSION(niso,klon), INTENT(INOUT) :: Roce
96	#endif
97
98	REAL, intent(inout):: delta_sst(:) ! (knon)
99	! Ocean-air interface temperature minus bulk SST, in K. Defined
100	! only if activate_ocean_skin >= 1.
101
102	real, intent(inout):: delta_sal(:) ! (knon)
103	! Ocean-air interface salinity minus bulk salinity, in ppt. Defined
104	! only if activate_ocean_skin >= 1.
105
106	REAL, intent(inout):: ds_ns(:) ! (knon)
107	! "delta salinity near surface". Salinity variation in the
108	! near-surface turbulent layer. That is subskin salinity minus
109	! foundation salinity. In ppt.
110
111	REAL, intent(inout):: dt_ns(:) ! (knon)
112	! "delta temperature near surface". Temperature variation in the
113	! near-surface turbulent layer. That is subskin temperature
114	! minus foundation temperature. (Can be negative.) In K.
115
116	REAL, intent(inout):: dter(:) ! (knon)
117	! Temperature variation in the diffusive microlayer, that is
118	! ocean-air interface temperature minus subskin temperature. In
119	! K.
120
121	REAL, intent(inout):: dser(:) ! (knon)
122	! Salinity variation in the diffusive microlayer, that is
123	! ocean-air interface salinity minus subskin salinity. In ppt.
124
125	real, intent(inout):: dt_ds(:) ! (knon)
126	! (tks / tkt) * dTer, in K
127
128	! Output variables
129	!**************************************************************************
130	REAL, DIMENSION(klon), INTENT(OUT) :: z0m
131	!albedo SB >>>
132	! REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new ! new albedo in visible SW interval
133	! REAL, DIMENSION(klon), INTENT(OUT) :: alb2_new ! new albedo in near IR interval
134	REAL, DIMENSION(6), INTENT(IN) :: SFRWL
135	REAL, DIMENSION(klon,nsw), INTENT(OUT) :: alb_dir_new,alb_dif_new
136	!albedo SB <<<
137	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat
138	REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new ! sea surface temperature, in K
139	REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l
140	REAL, DIMENSION(klon), INTENT(OUT) :: lmt_bils
141	REAL, DIMENSION(klon), INTENT(OUT) :: flux_u1, flux_v1
142
143	REAL, intent(out):: tkt(:) ! (knon)
144	! épaisseur (m) de la couche de diffusion thermique (microlayer)
145	! cool skin thickness
146
147	REAL, intent(out):: tks(:) ! (knon)
148	! épaisseur (m) de la couche de diffusion de masse (microlayer)
149
150	REAL, intent(out):: taur(:) ! (knon)
151	! momentum flux due to rain, in Pa
152
153	real, intent(out):: sss(:) ! (klon)
154	! Bulk salinity of the surface layer of the ocean, in ppt. (Only
155	! defined for subscripts 1:knon, but we have to declare it with
156	! size klon because of the coupling machinery.)
157
158	#ifdef ISO
159	REAL, DIMENSION(ntraciso,klon), INTENT(out) :: xtevap ! isotopes in surface evaporation flux
160	REAL, DIMENSION(klon), INTENT(out) :: h1 ! just a diagnostic, not useful for the simulation
161	#endif
162
163	! Local variables
164	!*************************************************************************
165	INTEGER :: i, k
166	REAL :: tmp
167	REAL, PARAMETER :: cepdu2=(0.1)**2
168	REAL, DIMENSION(klon) :: alb_eau, z0_lim
169	REAL, DIMENSION(klon) :: radsol
170	REAL, DIMENSION(klon) :: cdragq ! Cdrag pour l'evaporation
171	CHARACTER(len=20),PARAMETER :: modname="surf_ocean"
172	real rhoa(knon) ! density of moist air (kg / m3)
173	REAL sens_prec_liq(knon)
174
175	REAL t_int(knon) ! ocean-air interface temperature, in K
176	real s_int(knon) ! ocean-air interface salinity, in ppt
177
178	!**************************************************************************
179
180	#ifdef ISO
181	#ifdef ISOVERIF
182	do i=1,knon
183	if (iso_eau.gt.0) then
184	call iso_verif_egalite_choix(xtspechum(iso_eau,i), &
185	& spechum(i),'surf_ocean_mod 117', &
186	& errmax,errmaxrel)
187	call iso_verif_egalite_choix(xtsnow(iso_eau,i), &
188	& snow(i),'surf_ocean_mod 127', &
189	& errmax,errmaxrel)
190	endif !if (iso_eau.gt.0) then
191	enddo !do i=1,klon
192	#endif
193	#endif
194
195	!******************************************************************************
196	! Calculate total net radiance at surface
197	!
198	!******************************************************************************
199	radsol(1:klon) = 0.0 ! initialisation a priori inutile
200	radsol(1:knon) = swnet(1:knon) + lwnet(1:knon)
201
202	!******************************************************************************
203	! Cdragq computed from cdrag
204	! The difference comes only from a factor (f_z0qh_oce) on z0, so that
205	! it can be computed inside surf_ocean
206	! More complicated appraches may require the propagation through
207	! pbl_surface of an independant cdragq variable.
208	!******************************************************************************
209
210	IF ( f_z0qh_oce .ne. 1.) THEN
211	! Si on suit les formulations par exemple de Tessel, on
212	! a z0h=0.4nu/u, z0q=0.62nu/u, d'ou f_z0qh_oce=0.62/0.4=1.55
213	cdragq(1:knon)=cdragh(1:knon)* &
214	log(z1lay(1:knon)/z0h(1:knon))/log(z1lay(1:knon)/(f_z0qh_oce*z0h(1:knon)))
215	ELSE
216	cdragq(1:knon)=cdragh(1:knon)
217	ENDIF
218
219	rhoa = PS(:KNON) / (Rd * temp_air(:knon) * (1. + retv * spechum(:knon)))
220	!******************************************************************************
221	! Switch according to type of ocean (couple, slab or forced)
222	!******************************************************************************
223	SELECT CASE(type_ocean)
224	CASE('couple')
225	CALL ocean_cpl_noice( &
226	swnet, lwnet, alb1, &
227	windsp, fder, &
228	itime, dtime, knon, knindex, &
229	p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow,temp_air,spechum,&
230	AcoefH, AcoefQ, BcoefH, BcoefQ, &
231	AcoefU, AcoefV, BcoefU, BcoefV, &
232	ps, u1, v1, gustiness, tsurf_in, &
233	radsol, snow, agesno, &
234	qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
235	tsurf_new, dflux_s, dflux_l, sens_prec_liq, sss, delta_sal, rhoa, &
236	delta_sst, dTer, dSer, dt_ds)
237
238	CASE('slab')
239	CALL ocean_slab_noice( &
240	itime, dtime, jour, knon, knindex, &
241	p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, temp_air, spechum,&
242	AcoefH, AcoefQ, BcoefH, BcoefQ, &
243	AcoefU, AcoefV, BcoefU, BcoefV, &
244	ps, u1, v1, gustiness, tsurf_in, &
245	radsol, snow, &
246	qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
247	tsurf_new, dflux_s, dflux_l, lmt_bils)
248
249	CASE('force')
250	CALL ocean_forced_noice( &
251	itime, dtime, jour, knon, knindex, &
252	p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, &
253	temp_air, spechum, &
254	AcoefH, AcoefQ, BcoefH, BcoefQ, &
255	AcoefU, AcoefV, BcoefU, BcoefV, &
256	ps, u1, v1, gustiness, tsurf_in, &
257	radsol, snow, agesno, &
258	qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
259	tsurf_new, dflux_s, dflux_l, sens_prec_liq, rhoa &
260	#ifdef ISO
261	,xtprecip_rain, xtprecip_snow, xtspechum,Roce,rlat, &
262	xtsnow,xtevap,h1 &
263	#endif
264	)
265	END SELECT
266
267	!******************************************************************************
268	! fcodron: compute lmt_bils forced case (same as wfbils_oce / 1.-contfracatm)
269	!******************************************************************************
270	IF (type_ocean.NE.'slab') THEN
271	lmt_bils(1:klon)=0.
272	DO i=1,knon
273	lmt_bils(knindex(i))=(swnet(i)+lwnet(i)+fluxsens(i)+fluxlat(i)) &
274	*pctsrf(knindex(i),is_oce)/(1.-zmasq(knindex(i)))
275	END DO
276	END IF
277
278	!******************************************************************************
279	! Calculate ocean surface albedo
280	!******************************************************************************
281	!albedo SB >>>
282	IF (iflag_albedo==0) THEN
283	!--old parametrizations of ocean surface albedo
284	!
285	IF (iflag_cycle_diurne.GE.1) THEN
286	!
287	CALL alboc_cd(rmu0,alb_eau)
288	!
289	!--ad-hoc correction for model radiative balance tuning
290	!--now outside alboc_cd routine
291	alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
292	alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.0),1.0)
293	!
294	ELSE
295	!
296	CALL alboc(REAL(jour),rlat,alb_eau)
297	!--ad-hoc correction for model radiative balance tuning
298	!--now outside alboc routine
299	alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
300	alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.04),0.60)
301	!
302	ENDIF
303	!
304	DO i =1, knon
305	DO k=1,nsw
306	alb_dir_new(i,k) = alb_eau(knindex(i))
307	ENDDO
308	ENDDO
309	!IM 09122015 next line corresponds to the old way of doing in LMDZ5A/IPSLCM5A versions
310	!albedo for diffuse radiation is taken the same as for direct radiation
311	alb_dif_new(1:knon,:)=alb_dir_new(1:knon,:)
312	!IM 09122015 end
313	!
314	ELSE IF (iflag_albedo==1) THEN
315	!--new parametrization of ocean surface albedo by Sunghye Baek
316	!--albedo for direct and diffuse radiation are different
317	!
318	CALL ocean_albedo(knon,rmu0,knindex,windsp,SFRWL,alb_dir_new,alb_dif_new)
319	!
320	!--ad-hoc correction for model radiative balance tuning
321	alb_dir_new(1:knon,:) = fmagic*alb_dir_new(1:knon,:) + pmagic
322	alb_dif_new(1:knon,:) = fmagic*alb_dif_new(1:knon,:) + pmagic
323	alb_dir_new(1:knon,:)=MIN(MAX(alb_dir_new(1:knon,:),0.0),1.0)
324	alb_dif_new(1:knon,:)=MIN(MAX(alb_dif_new(1:knon,:),0.0),1.0)
325	!
326	ELSE IF (iflag_albedo==2) THEN
327	! F. Codron albedo read from limit.nc
328	CALL limit_read_rug_alb(itime, dtime, jour,&
329	knon, knindex, z0_lim, alb_eau)
330	DO i =1, knon
331	DO k=1,nsw
332	alb_dir_new(i,k) = alb_eau(i)
333	ENDDO
334	ENDDO
335	alb_dif_new=alb_dir_new
336	ENDIF
337	!albedo SB <<<
338
339	!******************************************************************************
340	! Calculate the rugosity
341	!******************************************************************************
342	IF (iflag_z0_oce==0) THEN
343	DO i = 1, knon
344	tmp = MAX(cepdu2,gustiness(i)+u1(i)2+v1(i)2)
345	z0m(i) = 0.018cdragm(i) (gustiness(i)+u1(i)2+v1(i)2)/RG &
346	+ 0.1114e-6 / SQRT(cdragm(i) tmp)
347	z0m(i) = MAX(1.5e-05,z0m(i))
348	ENDDO
349	z0h(1:knon)=z0m(1:knon) ! En attendant mieux
350
351	ELSE IF (iflag_z0_oce==1) THEN
352	DO i = 1, knon
353	tmp = MAX(cepdu2,gustiness(i)+u1(i)2+v1(i)2)
354	z0m(i) = 0.018cdragm(i) (gustiness(i)+u1(i)2+v1(i)2)/RG &
355	+ 0.1114e-6 / SQRT(cdragm(i) tmp)
356	z0m(i) = MAX(1.5e-05,z0m(i))
357	z0h(i)=0.414e-6 / SQRT(cdragm(i) tmp)
358	ENDDO
359	ELSE IF (iflag_z0_oce==-1) THEN
360	DO i = 1, knon
361	z0m(i) = z0min
362	z0h(i) = z0min
363	ENDDO
364	ELSE
365	CALL abort_physic(modname,'version non prevue',1)
366	ENDIF
367
368	if (activate_ocean_skin >= 1) then
369	if (type_ocean /= 'couple') sss(:knon) = 35.
370	call bulk_flux(tkt, tks, taur, dter, dser, t_int, s_int, ds_ns, dt_ns, &
371	u = windsp(:knon), t_ocean_1 = tsurf_new(:knon), s1 = sss(:knon), &
372	rain = precip_rain(:knon) + precip_snow(:knon), &
373	hf = - fluxsens(:knon), hlb = - fluxlat(:knon), &
374	rnl = - lwnet(:knon), &
375	tau = sqrt(flux_u1(:knon)2 + flux_v1(:knon)2), rhoa = rhoa, &
376	xlv = [(rlvtt, i = 1, knon)], rf = - sens_prec_liq, dtime = dtime, &
377	rns = swnet(:knon))
378	delta_sst = t_int - tsurf_new(:knon)
379	delta_sal = s_int - sss(:knon)
380
381	if (activate_ocean_skin == 2) then
382	tsurf_new(:knon) = t_int
383	if (type_ocean == 'couple') dt_ds = (tks / tkt) * dter
384	end if
385	end if
386
387	END SUBROUTINE surf_ocean
388	!****************************************************************************
389	!
390	END MODULE surf_ocean_mod

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