source: LMDZ6/branches/cirrus/libf/phylmd/surf_ocean_mod.F90 @ 5407

Last change on this file since 5407 was 5202, checked in by Laurent Fairhead, 3 months ago

Updating cirrus branch to trunk revision 5171
  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 16.3 KB
Line 
1!
2! $Id: surf_ocean_mod.F90 5202 2024-09-20 10:32:04Z abarral $
3!
4MODULE surf_ocean_mod
5
6  IMPLICIT NONE
7
8CONTAINS
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, precip_bs, 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, precip_bs
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    REAL, DIMENSION(klon) :: precip_totsnow
172    CHARACTER(len=20),PARAMETER :: modname="surf_ocean"
173    REAL rhoa(knon) ! density of moist air  (kg / m3)
174    REAL sens_prec_liq(knon)
175
176    REAL t_int(knon) ! ocean-air interface temperature, in K
177    REAL s_int(knon) ! ocean-air interface salinity, in ppt
178
179    !**************************************************************************
180
181#ifdef ISO
182#ifdef ISOVERIF
183    DO i = 1, knon
184      IF (iso_eau > 0) THEN         
185        CALL iso_verif_egalite_choix(xtspechum(iso_eau,i), &
186     &          spechum(i),'surf_ocean_mod 117', &
187     &          errmax,errmaxrel)         
188        CALL iso_verif_egalite_choix(xtsnow(iso_eau,i), &
189     &          snow(i),'surf_ocean_mod 127', &
190     &          errmax,errmaxrel)
191      ENDIF !IF (iso_eau > 0) then
192    ENDDO !DO i=1,klon
193#endif     
194#endif
195
196    !******************************************************************************
197    ! Calculate total net radiance at surface
198    !
199    !******************************************************************************
200    radsol(1:klon) = 0.0 ! initialisation a priori inutile
201    radsol(1:knon) = swnet(1:knon) + lwnet(1:knon)
202
203
204    !****************************************************************************************
205    !Total solid precip
206
207    IF (ok_bs) THEN
208       precip_totsnow(:)=precip_snow(:)+precip_bs(:)
209    ELSE
210       precip_totsnow(:)=precip_snow(:)
211    ENDIF
212
213
214    !******************************************************************************
215    ! Cdragq computed from cdrag
216    ! The difference comes only from a factor (f_z0qh_oce) on z0, so that
217    ! it can be computed inside surf_ocean
218    ! More complicated appraches may require the propagation through
219    ! pbl_surface of an independant cdragq variable.
220    !******************************************************************************
221
222    IF ( f_z0qh_oce .ne. 1.) THEN
223       ! Si on suit les formulations par exemple de Tessel, on
224       ! a z0h=0.4*nu/u*, z0q=0.62*nu/u*, d'ou f_z0qh_oce=0.62/0.4=1.55
225       cdragq(1:knon)=cdragh(1:knon)*                                      &
226            log(z1lay(1:knon)/z0h(1:knon))/log(z1lay(1:knon)/(f_z0qh_oce*z0h(1:knon)))
227    ELSE
228       cdragq(1:knon)=cdragh(1:knon)
229    ENDIF
230
231    rhoa = PS(:KNON) / (Rd * temp_air(:knon) * (1. + retv * spechum(:knon)))
232    !******************************************************************************
233    ! Switch according to type of ocean (couple, slab or forced)
234    !******************************************************************************
235    SELECT CASE(type_ocean)
236    CASE('couple')
237       CALL ocean_cpl_noice( &
238            swnet, lwnet, alb1, &
239            windsp, fder, &
240            itime, dtime, knon, knindex, &
241            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_totsnow,temp_air,spechum,&
242            AcoefH, AcoefQ, BcoefH, BcoefQ, &
243            AcoefU, AcoefV, BcoefU, BcoefV, &
244            ps, u1, v1, gustiness, tsurf_in, &
245            radsol, snow, agesno, &
246            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
247            tsurf_new, dflux_s, dflux_l, sens_prec_liq, sss, delta_sal, rhoa, &
248            delta_sst, dTer, dSer, dt_ds)
249
250    CASE('slab')
251       CALL ocean_slab_noice( &
252            itime, dtime, jour, knon, knindex, &
253            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_totsnow, temp_air, spechum,&
254            AcoefH, AcoefQ, BcoefH, BcoefQ, &
255            AcoefU, AcoefV, BcoefU, BcoefV, &
256            ps, u1, v1, gustiness, tsurf_in, &
257            radsol, snow, &
258            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
259            tsurf_new, dflux_s, dflux_l, lmt_bils)
260
261    CASE('force')
262       CALL ocean_forced_noice( &
263            itime, dtime, jour, knon, knindex, &
264            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_totsnow, &
265            temp_air, spechum, &
266            AcoefH, AcoefQ, BcoefH, BcoefQ, &
267            AcoefU, AcoefV, BcoefU, BcoefV, &
268            ps, u1, v1, gustiness, tsurf_in, &
269            radsol, snow, agesno, &
270            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
271            tsurf_new, dflux_s, dflux_l, sens_prec_liq, rhoa &
272#ifdef ISO
273            ,xtprecip_rain, xtprecip_snow, xtspechum,Roce,rlat, &
274            xtsnow,xtevap,h1 & 
275#endif           
276            )
277    END SELECT
278
279    !******************************************************************************
280    ! fcodron: compute lmt_bils  forced case (same as wfbils_oce / 1.-contfracatm)
281    !******************************************************************************
282    IF (type_ocean.NE.'slab') THEN
283       lmt_bils(1:klon)=0.
284       DO i=1,knon
285          lmt_bils(knindex(i))=(swnet(i)+lwnet(i)+fluxsens(i)+fluxlat(i)) &
286               *pctsrf(knindex(i),is_oce)/(1.-zmasq(knindex(i)))
287       END DO
288    END IF
289
290    !******************************************************************************
291    ! Calculate ocean surface albedo
292    !******************************************************************************
293    !albedo SB >>>
294    IF (iflag_albedo==0) THEN
295       !--old parametrizations of ocean surface albedo
296       !
297       IF (iflag_cycle_diurne.GE.1) THEN
298          !
299          CALL alboc_cd(rmu0,alb_eau)
300          !
301          !--ad-hoc correction for model radiative balance tuning
302          !--now outside alboc_cd routine
303          alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
304          alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.0),1.0)
305          !
306       ELSE
307          !
308          CALL alboc(REAL(jour),rlat,alb_eau)
309          !--ad-hoc correction for model radiative balance tuning
310          !--now outside alboc routine
311          alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
312          alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.04),0.60)
313          !
314       ENDIF
315       !
316       DO i =1, knon
317          DO  k=1,nsw
318             alb_dir_new(i,k) = alb_eau(knindex(i))
319          ENDDO
320       ENDDO
321       !IM 09122015 next line corresponds to the old way of doing in LMDZ5A/IPSLCM5A versions
322       !albedo for diffuse radiation is taken the same as for direct radiation
323       alb_dif_new(1:knon,:)=alb_dir_new(1:knon,:)
324       !IM 09122015 end
325       !
326    ELSE IF (iflag_albedo==1) THEN
327       !--new parametrization of ocean surface albedo by Sunghye Baek
328       !--albedo for direct and diffuse radiation are different
329       !
330       CALL ocean_albedo(knon,rmu0,knindex,windsp,SFRWL,alb_dir_new,alb_dif_new)
331       !
332       !--ad-hoc correction for model radiative balance tuning
333       alb_dir_new(1:knon,:) = fmagic*alb_dir_new(1:knon,:) + pmagic
334       alb_dif_new(1:knon,:) = fmagic*alb_dif_new(1:knon,:) + pmagic
335       alb_dir_new(1:knon,:)=MIN(MAX(alb_dir_new(1:knon,:),0.0),1.0)
336       alb_dif_new(1:knon,:)=MIN(MAX(alb_dif_new(1:knon,:),0.0),1.0)
337       !
338    ELSE IF (iflag_albedo==2) THEN
339       ! F. Codron albedo read from limit.nc
340       CALL limit_read_rug_alb(itime, dtime, jour,&
341            knon, knindex, z0_lim, alb_eau)
342       DO i =1, knon
343          DO  k=1,nsw
344             alb_dir_new(i,k) = alb_eau(i)
345          ENDDO
346       ENDDO
347       alb_dif_new=alb_dir_new
348    ENDIF
349    !albedo SB <<<
350
351    !******************************************************************************
352    ! Calculate the rugosity
353    !******************************************************************************
354    IF (iflag_z0_oce==0) THEN
355       DO i = 1, knon
356          tmp = MAX(cepdu2,gustiness(i)+u1(i)**2+v1(i)**2)
357          z0m(i) = 0.018*cdragm(i) * (gustiness(i)+u1(i)**2+v1(i)**2)/RG  &
358               +  0.11*14e-6 / SQRT(cdragm(i) * tmp)
359          z0m(i) = MAX(1.5e-05,z0m(i))
360       ENDDO
361       z0h(1:knon)=z0m(1:knon) ! En attendant mieux
362
363    ELSE IF (iflag_z0_oce==1) THEN
364       DO i = 1, knon
365          tmp = MAX(cepdu2,gustiness(i)+u1(i)**2+v1(i)**2)
366          z0m(i) = 0.018*cdragm(i) * (gustiness(i)+u1(i)**2+v1(i)**2)/RG  &
367               + 0.11*14e-6 / SQRT(cdragm(i) * tmp)
368          z0m(i) = MAX(1.5e-05,z0m(i))
369          z0h(i)=0.4*14e-6 / SQRT(cdragm(i) * tmp)
370       ENDDO
371    ELSE IF (iflag_z0_oce==-1) THEN
372       DO i = 1, knon
373          z0m(i) = z0min
374          z0h(i) = z0min
375       ENDDO
376    ELSE
377       CALL abort_physic(modname,'version non prevue',1)
378    ENDIF
379
380    if (activate_ocean_skin >= 1) then
381       if (type_ocean /= 'couple') sss(:knon) = 35.
382       call bulk_flux(tkt, tks, taur, dter, dser, t_int, s_int, ds_ns, dt_ns, &
383            u = windsp(:knon), t_ocean_1 = tsurf_new(:knon), s1 = sss(:knon), &
384            rain = precip_rain(:knon) + precip_totsnow(:knon), &
385            hf = - fluxsens(:knon), hlb = - fluxlat(:knon), &
386            rnl = - lwnet(:knon), &
387            tau = sqrt(flux_u1(:knon)**2 + flux_v1(:knon)**2), rhoa = rhoa, &
388            xlv = [(rlvtt, i = 1, knon)], rf = - sens_prec_liq, dtime = dtime, &
389            rns = swnet(:knon))
390       delta_sst = t_int - tsurf_new(:knon)
391       delta_sal = s_int - sss(:knon)
392
393       if (activate_ocean_skin == 2) then
394          tsurf_new(:knon) = t_int
395          if (type_ocean == 'couple') dt_ds = (tks / tkt) * dter
396       end if
397    end if
398   
399  END SUBROUTINE surf_ocean
400  !****************************************************************************
401  !
402END MODULE surf_ocean_mod
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