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surf_ocean_mod.F90 @ 3940

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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, tkt, tks, &
23	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,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	! Output variables
117	!**************************************************************************
118	REAL, DIMENSION(klon), INTENT(OUT) :: z0m
119	!albedo SB >>>
120	! REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new ! new albedo in visible SW interval
121	! REAL, DIMENSION(klon), INTENT(OUT) :: alb2_new ! new albedo in near IR interval
122	REAL, DIMENSION(6), INTENT(IN) :: SFRWL
123	REAL, DIMENSION(klon,nsw), INTENT(OUT) :: alb_dir_new,alb_dif_new
124	!albedo SB <<<
125	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat
126	REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new ! sea surface temperature, in K
127	REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l
128	REAL, DIMENSION(klon), INTENT(OUT) :: lmt_bils
129	REAL, DIMENSION(klon), INTENT(OUT) :: flux_u1, flux_v1
130
131	REAL, intent(out):: dter(:) ! (knon)
132	! Temperature variation in the diffusive microlayer, that is
133	! ocean-air interface temperature minus subskin temperature. In
134	! K.
135
136	REAL, intent(out):: dser(:) ! (knon)
137	! Salinity variation in the diffusive microlayer, that is
138	! ocean-air interface salinity minus subskin salinity. In ppt.
139
140	REAL, intent(out):: tkt(:) ! (knon)
141	! épaisseur (m) de la couche de diffusion thermique (microlayer)
142	! cool skin thickness
143
144	REAL, intent(out):: tks(:) ! (knon)
145	! épaisseur (m) de la couche de diffusion de masse (microlayer)
146
147	REAL, intent(out):: taur(:) ! (knon)
148	! momentum flux due to rain, in Pa
149
150	real, intent(out):: sss(:) ! (klon)
151	! Bulk salinity of the surface layer of the ocean, in ppt. (Only
152	! defined for subscripts 1:knon, but we have to declare it with
153	! size klon because of the coupling machinery.)
154	#ifdef ISO
155	REAL, DIMENSION(ntraciso,klon), INTENT(out) :: xtevap ! isotopes in surface evaporation flux
156	REAL, DIMENSION(klon), INTENT(out) :: h1 ! just a diagnostic, not useful for the simulation
157	#endif
158
159	! Local variables
160	!*************************************************************************
161	INTEGER :: i, k
162	REAL :: tmp
163	REAL, PARAMETER :: cepdu2=(0.1)**2
164	REAL, DIMENSION(klon) :: alb_eau, z0_lim
165	REAL, DIMENSION(klon) :: radsol
166	REAL, DIMENSION(klon) :: cdragq ! Cdrag pour l'evaporation
167	CHARACTER(len=20),PARAMETER :: modname="surf_ocean"
168	real rhoa(knon) ! density of moist air (kg / m3)
169	REAL sens_prec_liq(knon)
170
171	REAL t_int(knon) ! ocean-air interface temperature, in K
172	real s_int(knon) ! ocean-air interface salinity, in ppt
173
174	!******************************************************************************
175
176	#ifdef ISO
177	#ifdef ISOVERIF
178	do i=1,knon
179	if (iso_eau.gt.0) then
180	call iso_verif_egalite_choix(xtspechum(iso_eau,i), &
181	& spechum(i),'surf_ocean_mod 117', &
182	& errmax,errmaxrel)
183	call iso_verif_egalite_choix(xtsnow(iso_eau,i), &
184	& snow(i),'surf_ocean_mod 127', &
185	& errmax,errmaxrel)
186	endif !if (iso_eau.gt.0) then
187	enddo !do i=1,klon
188	#endif
189	#endif
190
191	!******************************************************************************
192	! Calculate total net radiance at surface
193	!
194	!******************************************************************************
195	radsol(1:klon) = 0.0 ! initialisation a priori inutile
196	radsol(1:knon) = swnet(1:knon) + lwnet(1:knon)
197
198	!******************************************************************************
199	! Cdragq computed from cdrag
200	! The difference comes only from a factor (f_z0qh_oce) on z0, so that
201	! it can be computed inside surf_ocean
202	! More complicated appraches may require the propagation through
203	! pbl_surface of an independant cdragq variable.
204	!******************************************************************************
205
206	IF ( f_z0qh_oce .ne. 1.) THEN
207	! Si on suit les formulations par exemple de Tessel, on
208	! a z0h=0.4nu/u, z0q=0.62nu/u, d'ou f_z0qh_oce=0.62/0.4=1.55
209	cdragq(1:knon)=cdragh(1:knon)* &
210	log(z1lay(1:knon)/z0h(1:knon))/log(z1lay(1:knon)/(f_z0qh_oce*z0h(1:knon)))
211	ELSE
212	cdragq(1:knon)=cdragh(1:knon)
213	ENDIF
214
215
216	rhoa = PS(:KNON) / (Rd * temp_air(:knon) * (1. + retv * spechum(:knon)))
217
218	!******************************************************************************
219	! Switch according to type of ocean (couple, slab or forced)
220	!******************************************************************************
221	SELECT CASE(type_ocean)
222	CASE('couple')
223	CALL ocean_cpl_noice( &
224	swnet, lwnet, alb1, &
225	windsp, fder, &
226	itime, dtime, knon, knindex, &
227	p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow,temp_air,spechum,&
228	AcoefH, AcoefQ, BcoefH, BcoefQ, &
229	AcoefU, AcoefV, BcoefU, BcoefV, &
230	ps, u1, v1, gustiness, tsurf_in, &
231	radsol, snow, agesno, &
232	qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
233	tsurf_new, dflux_s, dflux_l, sens_prec_liq, sss, delta_sal, rhoa, &
234	delta_sst)
235
236	CASE('slab')
237	CALL ocean_slab_noice( &
238	itime, dtime, jour, knon, knindex, &
239	p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, temp_air, spechum,&
240	AcoefH, AcoefQ, BcoefH, BcoefQ, &
241	AcoefU, AcoefV, BcoefU, BcoefV, &
242	ps, u1, v1, gustiness, tsurf_in, &
243	radsol, snow, &
244	qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
245	tsurf_new, dflux_s, dflux_l, lmt_bils)
246
247	CASE('force')
248	CALL ocean_forced_noice( &
249	itime, dtime, jour, knon, knindex, &
250	p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, &
251	temp_air, spechum, &
252	AcoefH, AcoefQ, BcoefH, BcoefQ, &
253	AcoefU, AcoefV, BcoefU, BcoefV, &
254	ps, u1, v1, gustiness, tsurf_in, &
255	radsol, snow, agesno, &
256	qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
257	tsurf_new, dflux_s, dflux_l, sens_prec_liq, rhoa &
258	#ifdef ISO
259	,xtprecip_rain, xtprecip_snow, xtspechum,Roce,rlat, &
260	xtsnow,xtevap,h1 &
261	#endif
262	)
263	END SELECT
264
265	!******************************************************************************
266	! fcodron: compute lmt_bils forced case (same as wfbils_oce / 1.-contfracatm)
267	!******************************************************************************
268	IF (type_ocean.NE.'slab') THEN
269	lmt_bils(1:klon)=0.
270	DO i=1,knon
271	lmt_bils(knindex(i))=(swnet(i)+lwnet(i)+fluxsens(i)+fluxlat(i)) &
272	*pctsrf(knindex(i),is_oce)/(1.-zmasq(knindex(i)))
273	END DO
274	END IF
275
276	!******************************************************************************
277	! Calculate ocean surface albedo
278	!******************************************************************************
279	!albedo SB >>>
280	IF (iflag_albedo==0) THEN
281	!--old parametrizations of ocean surface albedo
282	!
283	IF (iflag_cycle_diurne.GE.1) THEN
284	!
285	CALL alboc_cd(rmu0,alb_eau)
286	!
287	!--ad-hoc correction for model radiative balance tuning
288	!--now outside alboc_cd routine
289	alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
290	alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.0),1.0)
291	!
292	ELSE
293	!
294	CALL alboc(REAL(jour),rlat,alb_eau)
295	!--ad-hoc correction for model radiative balance tuning
296	!--now outside alboc routine
297	alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
298	alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.04),0.60)
299	!
300	ENDIF
301	!
302	DO i =1, knon
303	DO k=1,nsw
304	alb_dir_new(i,k) = alb_eau(knindex(i))
305	ENDDO
306	ENDDO
307	!IM 09122015 next line corresponds to the old way of doing in LMDZ5A/IPSLCM5A versions
308	!albedo for diffuse radiation is taken the same as for direct radiation
309	alb_dif_new(1:knon,:)=alb_dir_new(1:knon,:)
310	!IM 09122015 end
311	!
312	ELSE IF (iflag_albedo==1) THEN
313	!--new parametrization of ocean surface albedo by Sunghye Baek
314	!--albedo for direct and diffuse radiation are different
315	!
316	CALL ocean_albedo(knon,rmu0,knindex,windsp,SFRWL,alb_dir_new,alb_dif_new)
317	!
318	!--ad-hoc correction for model radiative balance tuning
319	alb_dir_new(1:knon,:) = fmagic*alb_dir_new(1:knon,:) + pmagic
320	alb_dif_new(1:knon,:) = fmagic*alb_dif_new(1:knon,:) + pmagic
321	alb_dir_new(1:knon,:)=MIN(MAX(alb_dir_new(1:knon,:),0.0),1.0)
322	alb_dif_new(1:knon,:)=MIN(MAX(alb_dif_new(1:knon,:),0.0),1.0)
323	!
324	ELSE IF (iflag_albedo==2) THEN
325	! F. Codron albedo read from limit.nc
326	CALL limit_read_rug_alb(itime, dtime, jour,&
327	knon, knindex, z0_lim, alb_eau)
328	DO i =1, knon
329	DO k=1,nsw
330	alb_dir_new(i,k) = alb_eau(i)
331	ENDDO
332	ENDDO
333	alb_dif_new=alb_dir_new
334	ENDIF
335	!albedo SB <<<
336
337	!******************************************************************************
338	! Calculate the rugosity
339	!******************************************************************************
340	IF (iflag_z0_oce==0) THEN
341	DO i = 1, knon
342	tmp = MAX(cepdu2,gustiness(i)+u1(i)2+v1(i)2)
343	z0m(i) = 0.018cdragm(i) (gustiness(i)+u1(i)2+v1(i)2)/RG &
344	+ 0.1114e-6 / SQRT(cdragm(i) tmp)
345	z0m(i) = MAX(1.5e-05,z0m(i))
346	ENDDO
347	z0h(1:knon)=z0m(1:knon) ! En attendant mieux
348
349	ELSE IF (iflag_z0_oce==1) THEN
350	DO i = 1, knon
351	tmp = MAX(cepdu2,gustiness(i)+u1(i)2+v1(i)2)
352	z0m(i) = 0.018cdragm(i) (gustiness(i)+u1(i)2+v1(i)2)/RG &
353	+ 0.1114e-6 / SQRT(cdragm(i) tmp)
354	z0m(i) = MAX(1.5e-05,z0m(i))
355	z0h(i)=0.414e-6 / SQRT(cdragm(i) tmp)
356	ENDDO
357	ELSE IF (iflag_z0_oce==-1) THEN
358	DO i = 1, knon
359	z0m(i) = z0min
360	z0h(i) = z0min
361	ENDDO
362	ELSE
363	CALL abort_physic(modname,'version non prevue',1)
364	ENDIF
365
366	if (activate_ocean_skin >= 1) then
367	if (type_ocean /= 'couple') sss(:knon) = 35.
368	call bulk_flux(tkt, tks, taur, dter, dser, t_int, s_int, ds_ns, dt_ns, &
369	u = windsp(:knon), t_ocean_1 = tsurf_new(:knon), s1 = sss(:knon), &
370	rain = precip_rain(:knon) + precip_snow(:knon), &
371	hf = - fluxsens(:knon), hlb = - fluxlat(:knon), &
372	rnl = - lwnet(:knon), &
373	tau = sqrt(flux_u1(:knon)2 + flux_v1(:knon)2), rhoa = rhoa, &
374	xlv = [(rlvtt, i = 1, knon)], rf = - sens_prec_liq, dtime = dtime, &
375	rns = swnet(:knon))
376	delta_sst = t_int - tsurf_new(:knon)
377	delta_sal = s_int - sss(:knon)
378	if (activate_ocean_skin >= 2) tsurf_new(:knon) = t_int
379	end if
380
381	END SUBROUTINE surf_ocean
382	!****************************************************************************
383	!
384	END MODULE surf_ocean_mod

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