source: LMDZ6/trunk/libf/phylmd/surf_ocean_mod.F90 @ 3897

Last change on this file since 3897 was 3815, checked in by lguez, 4 years ago

Merge Ocean_skin branch back into trunk
  • 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: 14.3 KB
Line 
1!
2! $Id: surf_ocean_mod.F90 3815 2021-02-01 14:30:57Z jyg $
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, 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
25    use albedo, only: alboc, alboc_cd
26    use bulk_flux_m, only: bulk_flux
27    USE dimphy, ONLY: klon, zmasq
28    USE surface_data, ONLY     : type_ocean
29    USE ocean_forced_mod, ONLY : ocean_forced_noice
30    USE ocean_slab_mod, ONLY   : ocean_slab_noice
31    USE ocean_cpl_mod, ONLY    : ocean_cpl_noice
32    USE indice_sol_mod, ONLY : nbsrf, is_oce
33    USE limit_read_mod
34    use config_ocean_skin_m, only: activate_ocean_skin
35    !
36    ! This subroutine will make a call to ocean_XXX_noice according to the ocean mode (force,
37    ! slab or couple). The calculations of albedo and rugosity for the ocean surface are
38    ! done in here because they are identical for the different modes of ocean.
39
40
41    INCLUDE "YOMCST.h"
42
43    include "clesphys.h"
44    ! for cycle_diurne and for iflag_z0_oce==-1 (prescribed z0)
45
46    ! Input variables
47    !******************************************************************************
48    INTEGER, INTENT(IN)                      :: itime, jour, knon
49    INTEGER, DIMENSION(klon), INTENT(IN)     :: knindex
50    REAL, INTENT(IN)                         :: dtime
51    REAL, DIMENSION(klon), INTENT(IN)        :: rlon, rlat
52    REAL, DIMENSION(klon), INTENT(IN)        :: swnet  ! net shortwave radiation at surface 
53    REAL, DIMENSION(klon), INTENT(IN)        :: lwnet  ! net longwave radiation at surface 
54    REAL, DIMENSION(klon), INTENT(IN)        :: alb1   ! albedo in visible SW interval
55    REAL, DIMENSION(klon), INTENT(IN)        :: windsp ! wind at 10 m, in m s-1
56    REAL, DIMENSION(klon), INTENT(IN)        :: rmu0 
57    REAL, DIMENSION(klon), INTENT(IN)        :: fder
58    REAL, INTENT(IN):: tsurf_in(klon) ! defined only for subscripts 1:knon
59    REAL, DIMENSION(klon), INTENT(IN)        :: p1lay,z1lay ! pression (Pa) et altitude (m) du premier niveau
60    REAL, DIMENSION(klon), INTENT(IN)        :: cdragh
61    REAL, DIMENSION(klon), INTENT(IN)        :: cdragm
62    REAL, DIMENSION(klon), INTENT(IN)        :: precip_rain, precip_snow
63    REAL, DIMENSION(klon), INTENT(IN)        :: temp_air, spechum
64    REAL, DIMENSION(klon), INTENT(IN)        :: AcoefH, AcoefQ, BcoefH, BcoefQ
65    REAL, DIMENSION(klon), INTENT(IN)        :: AcoefU, AcoefV, BcoefU, BcoefV
66    REAL, DIMENSION(klon), INTENT(IN)        :: ps
67    REAL, DIMENSION(klon), INTENT(IN)        :: u1, v1, gustiness
68    REAL, DIMENSION(klon), INTENT(IN)        :: rugoro
69    REAL, DIMENSION(klon,nbsrf), INTENT(IN)  :: pctsrf
70
71    ! In/Output variables
72    !******************************************************************************
73    REAL, DIMENSION(klon), INTENT(INOUT)     :: snow
74    REAL, DIMENSION(klon), INTENT(INOUT)     :: qsurf
75    REAL, DIMENSION(klon), INTENT(INOUT)     :: agesno
76    REAL, DIMENSION(klon), INTENT(inOUT):: z0h
77
78    REAL, intent(inout):: delta_sst(:) ! (knon)
79    ! Ocean-air interface temperature minus bulk SST, in K. Defined
80    ! only if activate_ocean_skin >= 1.
81
82    real, intent(inout):: delta_sal(:) ! (knon)
83    ! Ocean-air interface salinity minus bulk salinity, in ppt. Defined
84    ! only if activate_ocean_skin >= 1.
85
86    REAL, intent(inout):: ds_ns(:) ! (knon)
87    ! "delta salinity near surface". Salinity variation in the
88    ! near-surface turbulent layer. That is subskin salinity minus
89    ! foundation salinity. In ppt.
90
91    REAL, intent(inout):: dt_ns(:) ! (knon)
92    ! "delta temperature near surface". Temperature variation in the
93    ! near-surface turbulent layer. That is subskin temperature
94    ! minus foundation temperature. (Can be negative.) In K.
95
96    ! Output variables
97    !**************************************************************************
98    REAL, DIMENSION(klon), INTENT(OUT)       :: z0m
99    !albedo SB >>>
100    !    REAL, DIMENSION(klon), INTENT(OUT)       :: alb1_new  ! new albedo in visible SW interval
101    !    REAL, DIMENSION(klon), INTENT(OUT)       :: alb2_new  ! new albedo in near IR interval
102    REAL, DIMENSION(6), INTENT(IN)          :: SFRWL
103    REAL, DIMENSION(klon,nsw), INTENT(OUT)       :: alb_dir_new,alb_dif_new
104    !albedo SB <<<     
105    REAL, DIMENSION(klon), INTENT(OUT)       :: evap, fluxsens, fluxlat
106    REAL, INTENT(OUT):: tsurf_new(klon) ! sea surface temperature, in K
107    REAL, DIMENSION(klon), INTENT(OUT)       :: dflux_s, dflux_l     
108    REAL, DIMENSION(klon), INTENT(OUT)       :: lmt_bils
109    REAL, DIMENSION(klon), INTENT(OUT)       :: flux_u1, flux_v1
110
111    REAL, intent(out):: dter(:) ! (knon)
112    ! Temperature variation in the diffusive microlayer, that is
113    ! ocean-air interface temperature minus subskin temperature. In
114    ! K.
115
116    REAL, intent(out):: dser(:) ! (knon)
117    ! Salinity variation in the diffusive microlayer, that is
118    ! ocean-air interface salinity minus subskin salinity. In ppt.
119
120    REAL, intent(out):: tkt(:) ! (knon)
121    ! épaisseur (m) de la couche de diffusion thermique (microlayer)
122    ! cool skin thickness
123
124    REAL, intent(out):: tks(:) ! (knon)
125    ! épaisseur (m) de la couche de diffusion de masse (microlayer)
126
127    REAL, intent(out):: taur(:) ! (knon)
128    ! momentum flux due to rain, in Pa
129
130    real, intent(out):: sss(:) ! (klon)
131    ! Bulk salinity of the surface layer of the ocean, in ppt. (Only
132    ! defined for subscripts 1:knon, but we have to declare it with
133    ! size klon because of the coupling machinery.)
134
135    ! Local variables
136    !*************************************************************************
137    INTEGER               :: i, k
138    REAL                  :: tmp
139    REAL, PARAMETER       :: cepdu2=(0.1)**2
140    REAL, DIMENSION(klon) :: alb_eau, z0_lim
141    REAL, DIMENSION(klon) :: radsol
142    REAL, DIMENSION(klon) :: cdragq ! Cdrag pour l'evaporation
143    CHARACTER(len=20),PARAMETER :: modname="surf_ocean"
144    real rhoa(knon) ! density of moist air  (kg / m3)
145    REAL sens_prec_liq(knon)
146
147    REAL t_int(knon) ! ocean-air interface temperature, in K
148    real s_int(knon) ! ocean-air interface salinity, in ppt
149
150    !**************************************************************************
151
152
153    !******************************************************************************
154    ! Calculate total net radiance at surface
155    !
156    !******************************************************************************
157    radsol(1:klon) = 0.0 ! initialisation a priori inutile
158    radsol(1:knon) = swnet(1:knon) + lwnet(1:knon)
159
160    !******************************************************************************
161    ! Cdragq computed from cdrag
162    ! The difference comes only from a factor (f_z0qh_oce) on z0, so that
163    ! it can be computed inside surf_ocean
164    ! More complicated appraches may require the propagation through
165    ! pbl_surface of an independant cdragq variable.
166    !******************************************************************************
167
168    IF ( f_z0qh_oce .ne. 1.) THEN
169       ! Si on suit les formulations par exemple de Tessel, on
170       ! a z0h=0.4*nu/u*, z0q=0.62*nu/u*, d'ou f_z0qh_oce=0.62/0.4=1.55
171       cdragq(1:knon)=cdragh(1:knon)*                                      &
172            log(z1lay(1:knon)/z0h(1:knon))/log(z1lay(1:knon)/(f_z0qh_oce*z0h(1:knon)))
173    ELSE
174       cdragq(1:knon)=cdragh(1:knon)
175    ENDIF
176
177    rhoa = PS(:KNON) / (Rd * temp_air(:knon) * (1. + retv * spechum(:knon)))
178    !******************************************************************************
179    ! Switch according to type of ocean (couple, slab or forced)
180    !******************************************************************************
181    SELECT CASE(type_ocean)
182    CASE('couple')
183       CALL ocean_cpl_noice( &
184            swnet, lwnet, alb1, &
185            windsp, fder, &
186            itime, dtime, knon, knindex, &
187            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow,temp_air,spechum,&
188            AcoefH, AcoefQ, BcoefH, BcoefQ, &
189            AcoefU, AcoefV, BcoefU, BcoefV, &
190            ps, u1, v1, gustiness, tsurf_in, &
191            radsol, snow, agesno, &
192            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
193            tsurf_new, dflux_s, dflux_l, sens_prec_liq, sss, delta_sal, rhoa, &
194            delta_sst)
195
196    CASE('slab')
197       CALL ocean_slab_noice( &
198            itime, dtime, jour, knon, knindex, &
199            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, temp_air, spechum,&
200            AcoefH, AcoefQ, BcoefH, BcoefQ, &
201            AcoefU, AcoefV, BcoefU, BcoefV, &
202            ps, u1, v1, gustiness, tsurf_in, &
203            radsol, snow, &
204            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
205            tsurf_new, dflux_s, dflux_l, lmt_bils)
206
207    CASE('force')
208       CALL ocean_forced_noice( &
209            itime, dtime, jour, knon, knindex, &
210            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, &
211            temp_air, spechum, &
212            AcoefH, AcoefQ, BcoefH, BcoefQ, &
213            AcoefU, AcoefV, BcoefU, BcoefV, &
214            ps, u1, v1, gustiness, tsurf_in, &
215            radsol, snow, agesno, &
216            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
217            tsurf_new, dflux_s, dflux_l, sens_prec_liq, rhoa)
218    END SELECT
219
220    !******************************************************************************
221    ! fcodron: compute lmt_bils  forced case (same as wfbils_oce / 1.-contfracatm)
222    !******************************************************************************
223    IF (type_ocean.NE.'slab') THEN
224       lmt_bils(1:klon)=0.
225       DO i=1,knon
226          lmt_bils(knindex(i))=(swnet(i)+lwnet(i)+fluxsens(i)+fluxlat(i)) &
227               *pctsrf(knindex(i),is_oce)/(1.-zmasq(knindex(i)))
228       END DO
229    END IF
230
231    !******************************************************************************
232    ! Calculate ocean surface albedo
233    !******************************************************************************
234    !albedo SB >>>
235    IF (iflag_albedo==0) THEN
236       !--old parametrizations of ocean surface albedo
237       !
238       IF (iflag_cycle_diurne.GE.1) THEN
239          !
240          CALL alboc_cd(rmu0,alb_eau)
241          !
242          !--ad-hoc correction for model radiative balance tuning
243          !--now outside alboc_cd routine
244          alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
245          alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.0),1.0)
246          !
247       ELSE
248          !
249          CALL alboc(REAL(jour),rlat,alb_eau)
250          !--ad-hoc correction for model radiative balance tuning
251          !--now outside alboc routine
252          alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
253          alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.04),0.60)
254          !
255       ENDIF
256       !
257       DO i =1, knon
258          DO  k=1,nsw
259             alb_dir_new(i,k) = alb_eau(knindex(i))
260          ENDDO
261       ENDDO
262       !IM 09122015 next line corresponds to the old way of doing in LMDZ5A/IPSLCM5A versions
263       !albedo for diffuse radiation is taken the same as for direct radiation
264       alb_dif_new(1:knon,:)=alb_dir_new(1:knon,:)
265       !IM 09122015 end
266       !
267    ELSE IF (iflag_albedo==1) THEN
268       !--new parametrization of ocean surface albedo by Sunghye Baek
269       !--albedo for direct and diffuse radiation are different
270       !
271       CALL ocean_albedo(knon,rmu0,knindex,windsp,SFRWL,alb_dir_new,alb_dif_new)
272       !
273       !--ad-hoc correction for model radiative balance tuning
274       alb_dir_new(1:knon,:) = fmagic*alb_dir_new(1:knon,:) + pmagic
275       alb_dif_new(1:knon,:) = fmagic*alb_dif_new(1:knon,:) + pmagic
276       alb_dir_new(1:knon,:)=MIN(MAX(alb_dir_new(1:knon,:),0.0),1.0)
277       alb_dif_new(1:knon,:)=MIN(MAX(alb_dif_new(1:knon,:),0.0),1.0)
278       !
279    ELSE IF (iflag_albedo==2) THEN
280       ! F. Codron albedo read from limit.nc
281       CALL limit_read_rug_alb(itime, dtime, jour,&
282            knon, knindex, z0_lim, alb_eau)
283       DO i =1, knon
284          DO  k=1,nsw
285             alb_dir_new(i,k) = alb_eau(i)
286          ENDDO
287       ENDDO
288       alb_dif_new=alb_dir_new
289    ENDIF
290    !albedo SB <<<
291
292    !******************************************************************************
293    ! Calculate the rugosity
294    !******************************************************************************
295    IF (iflag_z0_oce==0) THEN
296       DO i = 1, knon
297          tmp = MAX(cepdu2,gustiness(i)+u1(i)**2+v1(i)**2)
298          z0m(i) = 0.018*cdragm(i) * (gustiness(i)+u1(i)**2+v1(i)**2)/RG  &
299               +  0.11*14e-6 / SQRT(cdragm(i) * tmp)
300          z0m(i) = MAX(1.5e-05,z0m(i))
301       ENDDO
302       z0h(1:knon)=z0m(1:knon) ! En attendant mieux
303
304    ELSE IF (iflag_z0_oce==1) THEN
305       DO i = 1, knon
306          tmp = MAX(cepdu2,gustiness(i)+u1(i)**2+v1(i)**2)
307          z0m(i) = 0.018*cdragm(i) * (gustiness(i)+u1(i)**2+v1(i)**2)/RG  &
308               + 0.11*14e-6 / SQRT(cdragm(i) * tmp)
309          z0m(i) = MAX(1.5e-05,z0m(i))
310          z0h(i)=0.4*14e-6 / SQRT(cdragm(i) * tmp)
311       ENDDO
312    ELSE IF (iflag_z0_oce==-1) THEN
313       DO i = 1, knon
314          z0m(i) = z0min
315          z0h(i) = z0min
316       ENDDO
317    ELSE
318       CALL abort_physic(modname,'version non prevue',1)
319    ENDIF
320
321    if (activate_ocean_skin >= 1) then
322       if (type_ocean /= 'couple') sss(:knon) = 35.
323       call bulk_flux(tkt, tks, taur, dter, dser, t_int, s_int, ds_ns, dt_ns, &
324            u = windsp(:knon), t_ocean_1 = tsurf_new(:knon), s1 = sss(:knon), &
325            rain = precip_rain(:knon) + precip_snow(:knon), &
326            hf = - fluxsens(:knon), hlb = - fluxlat(:knon), &
327            rnl = - lwnet(:knon), &
328            tau = sqrt(flux_u1(:knon)**2 + flux_v1(:knon)**2), rhoa = rhoa, &
329            xlv = [(rlvtt, i = 1, knon)], rf = - sens_prec_liq, dtime = dtime, &
330            rns = swnet(:knon))
331       delta_sst = t_int - tsurf_new(:knon)
332       delta_sal = s_int - sss(:knon)
333       if (activate_ocean_skin >= 2) tsurf_new(:knon) = t_int
334    end if
335   
336  END SUBROUTINE surf_ocean
337  !****************************************************************************
338  !
339END MODULE surf_ocean_mod
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