source: LMDZ6/branches/Ocean_skin/libf/phylmd/surf_ocean_mod.F90 @ 3628

Last change on this file since 3628 was 3628, checked in by lguez, 5 years ago

If the ocean skin parameterization is working actively
(activate_ocean_skin == 2) and we are coupled to the ocean then send
ocean-air interface salinity to the ocean. New dummy argument s_int
of procedures ocean_cpl_noice and cpl_send_ocean_fields. We can
only send interface salinity from the previous time-step since
communication with the ocean is before the call to bulk_flux. So make
s_int a state variable: move s_int from phys_output_var_mod to
phys_state_var_mod. Still, we only read s_int from startphy,
define it before the call to surf_ocean and write it to restartphy
if activate_ocean_skin == 2 and type_ocean == 'couple'. In
procedure pbl_surface, for clarity, move the definition of output
variables t_int, dter, dser, tkt, tks, rf, taur to missing_val to
after the call to surf_ocean, with the definition of s_int,
ds_ns, dt_ns to missing_val. This does not change anything for
t_int, dter, dser, tkt, tks, rf, taur. In pbl_surface_newfrac, we
choose to set s_int to 35 for an appearing ocean point, this is
questionable. In surf_ocean, change the intent of s_int from out
to inout.
  • 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 3628 2020-02-04 21:36:32Z lguez $
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, t_int, s_int, ds_ns, dt_ns, dter, dser, tkt, tks, rf, &
23       taur)
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 sens_heat_rain_m, only: sens_heat_rain
35    use config_ocean_skin_m, only: activate_ocean_skin
36    !
37    ! This subroutine will make a call to ocean_XXX_noice according to the ocean mode (force,
38    ! slab or couple). The calculations of albedo and rugosity for the ocean surface are
39    ! done in here because they are identical for the different modes of ocean.
40
41
42    INCLUDE "YOMCST.h"
43
44    include "clesphys.h"
45    ! for cycle_diurne and for iflag_z0_oce==-1 (prescribed z0)
46
47    ! Input variables
48    !******************************************************************************
49    INTEGER, INTENT(IN)                      :: itime, jour, knon
50    INTEGER, DIMENSION(klon), INTENT(IN)     :: knindex
51    REAL, INTENT(IN)                         :: dtime
52    REAL, DIMENSION(klon), INTENT(IN)        :: rlon, rlat
53    REAL, DIMENSION(klon), INTENT(IN)        :: swnet  ! net shortwave radiation at surface 
54    REAL, DIMENSION(klon), INTENT(IN)        :: lwnet  ! net longwave radiation at surface 
55    REAL, DIMENSION(klon), INTENT(IN)        :: alb1   ! albedo in visible SW interval
56    REAL, DIMENSION(klon), INTENT(IN)        :: windsp ! wind at 10 m, in m s-1
57    REAL, DIMENSION(klon), INTENT(IN)        :: rmu0 
58    REAL, DIMENSION(klon), INTENT(IN)        :: fder
59    REAL, INTENT(IN):: tsurf_in(klon) ! defined only for subscripts 1:knon
60    REAL, DIMENSION(klon), INTENT(IN)        :: p1lay,z1lay ! pression (Pa) et altitude (m) du premier niveau
61    REAL, DIMENSION(klon), INTENT(IN)        :: cdragh
62    REAL, DIMENSION(klon), INTENT(IN)        :: cdragm
63    REAL, DIMENSION(klon), INTENT(IN)        :: precip_rain, precip_snow
64    REAL, DIMENSION(klon), INTENT(IN)        :: temp_air, spechum
65    REAL, DIMENSION(klon), INTENT(IN)        :: AcoefH, AcoefQ, BcoefH, BcoefQ
66    REAL, DIMENSION(klon), INTENT(IN)        :: AcoefU, AcoefV, BcoefU, BcoefV
67    REAL, DIMENSION(klon), INTENT(IN)        :: ps
68    REAL, DIMENSION(klon), INTENT(IN)        :: u1, v1, gustiness
69    REAL, DIMENSION(klon), INTENT(IN)        :: rugoro
70    REAL, DIMENSION(klon,nbsrf), INTENT(IN)  :: pctsrf
71
72    ! In/Output variables
73    !******************************************************************************
74    REAL, DIMENSION(klon), INTENT(INOUT)     :: snow
75    REAL, DIMENSION(klon), INTENT(INOUT)     :: qsurf
76    REAL, DIMENSION(klon), INTENT(INOUT)     :: agesno
77    REAL, DIMENSION(klon), INTENT(inOUT):: z0h
78
79    real, intent(inout):: s_int(:) ! (knon) ocean-air interface salinity, in ppt
80
81    REAL, intent(inout):: ds_ns(:) ! (knon)
82    ! "delta salinity near surface". Salinity variation in the
83    ! near-surface turbulent layer. That is subskin salinity minus
84    ! foundation salinity. In ppt.
85
86    REAL, intent(inout):: dt_ns(:) ! (knon)
87    ! "delta temperature near surface". Temperature variation in the
88    ! near-surface turbulent layer. That is subskin temperature
89    ! minus foundation temperature. (Can be negative.) In K.
90
91    ! Output variables
92    !******************************************************************************
93    REAL, DIMENSION(klon), INTENT(OUT)       :: z0m
94    !albedo SB >>>
95    !    REAL, DIMENSION(klon), INTENT(OUT)       :: alb1_new  ! new albedo in visible SW interval
96    !    REAL, DIMENSION(klon), INTENT(OUT)       :: alb2_new  ! new albedo in near IR interval
97    REAL, DIMENSION(6), INTENT(IN)          :: SFRWL
98    REAL, DIMENSION(klon,nsw), INTENT(OUT)       :: alb_dir_new,alb_dif_new
99    !albedo SB <<<     
100    REAL, DIMENSION(klon), INTENT(OUT)       :: evap, fluxsens, fluxlat
101    REAL, INTENT(OUT):: tsurf_new(klon) ! sea surface temperature, in K
102    REAL, DIMENSION(klon), INTENT(OUT)       :: dflux_s, dflux_l     
103    REAL, DIMENSION(klon), INTENT(OUT)       :: lmt_bils
104    REAL, DIMENSION(klon), INTENT(OUT)       :: flux_u1, flux_v1
105
106    REAL, intent(out):: t_int(:) ! (knon) ocean-air interface temperature, in K
107
108    REAL, intent(out):: dter(:) ! (knon)
109    ! Temperature variation in the diffusive microlayer, that is
110    ! ocean-air interface temperature minus subskin temperature. In
111    ! K.
112
113    REAL, intent(out):: dser(:) ! (knon)
114    ! Salinity variation in the diffusive microlayer, that is
115    ! ocean-air interface salinity minus subskin salinity. In ppt.
116
117    REAL, intent(out):: tkt(:) ! (knon)
118    ! épaisseur (m) de la couche de diffusion thermique (microlayer)
119    ! cool skin thickness
120
121    REAL, intent(out):: tks(:) ! (knon)
122    ! épaisseur (m) de la couche de diffusion de masse (microlayer)
123
124    REAL, intent(out):: rf(:) ! (knon)
125    ! sensible heat flux at the surface due to rainfall, in  W m-2
126    ! positive upward
127
128    REAL, intent(out):: taur(:) ! (knon)
129    ! momentum flux due to rain, in Pa
130
131    ! Local variables
132    !******************************************************************************
133    INTEGER               :: i, k
134    REAL                  :: tmp
135    REAL, PARAMETER       :: cepdu2=(0.1)**2
136    REAL, DIMENSION(klon) :: alb_eau, z0_lim
137    REAL, DIMENSION(klon) :: radsol
138    REAL, DIMENSION(klon) :: cdragq ! Cdrag pour l'evaporation
139    CHARACTER(len=20),PARAMETER :: modname="surf_ocean"
140    real rhoa(knon) ! density of moist air  (kg / m3)
141    real xlv(knon) ! chaleur latente d'évaporation (J / kg)
142    real precip_tot(knon) ! rain + snow
143
144    real sss(klon)
145    ! Bulk salinity of the surface layer of the ocean, in ppt. (Only
146    ! defined for subscripts 1:knon, but we have to declare it with
147    ! size klon because of the coupling machinery.)
148
149    ! End definition
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
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, sss, s_int)
194
195    CASE('slab')
196       CALL ocean_slab_noice( &
197            itime, dtime, jour, knon, knindex, &
198            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, temp_air, spechum,&
199            AcoefH, AcoefQ, BcoefH, BcoefQ, &
200            AcoefU, AcoefV, BcoefU, BcoefV, &
201            ps, u1, v1, gustiness, tsurf_in, &
202            radsol, snow, &
203            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
204            tsurf_new, dflux_s, dflux_l, lmt_bils)
205
206    CASE('force')
207       CALL ocean_forced_noice( &
208            itime, dtime, jour, knon, knindex, &
209            p1lay, cdragh, cdragq, cdragm, precip_rain, precip_snow, &
210            temp_air, spechum, &
211            AcoefH, AcoefQ, BcoefH, BcoefQ, &
212            AcoefU, AcoefV, BcoefU, BcoefV, &
213            ps, u1, v1, gustiness, tsurf_in, &
214            radsol, snow, agesno, &
215            qsurf, evap, fluxsens, fluxlat, flux_u1, flux_v1, &
216            tsurf_new, dflux_s, dflux_l)
217    END SELECT
218
219    !******************************************************************************
220    ! fcodron: compute lmt_bils  forced case (same as wfbils_oce / 1.-contfracatm)
221    !******************************************************************************
222    IF (type_ocean.NE.'slab') THEN
223       lmt_bils(1:klon)=0.
224       DO i=1,knon
225          lmt_bils(knindex(i))=(swnet(i)+lwnet(i)+fluxsens(i)+fluxlat(i)) &
226               *pctsrf(knindex(i),is_oce)/(1.-zmasq(knindex(i)))
227       END DO
228    END IF
229
230    !******************************************************************************
231    ! Calculate ocean surface albedo
232    !******************************************************************************
233    !albedo SB >>>
234    IF (iflag_albedo==0) THEN
235       !--old parametrizations of ocean surface albedo
236       !
237       IF (iflag_cycle_diurne.GE.1) THEN
238          !
239          CALL alboc_cd(rmu0,alb_eau)
240          !
241          !--ad-hoc correction for model radiative balance tuning
242          !--now outside alboc_cd routine
243          alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
244          alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.0),1.0)
245          !
246       ELSE
247          !
248          CALL alboc(REAL(jour),rlat,alb_eau)
249          !--ad-hoc correction for model radiative balance tuning
250          !--now outside alboc routine
251          alb_eau(1:klon) = fmagic*alb_eau(1:klon) + pmagic
252          alb_eau(1:klon)=MIN(MAX(alb_eau(1:klon),0.04),0.60)
253          !
254       ENDIF
255       !
256       DO i =1, knon
257          DO  k=1,nsw
258             alb_dir_new(i,k) = alb_eau(knindex(i))
259          ENDDO
260       ENDDO
261       !IM 09122015 next line corresponds to the old way of doing in LMDZ5A/IPSLCM5A versions
262       !albedo for diffuse radiation is taken the same as for direct radiation
263       alb_dif_new(1:knon,:)=alb_dir_new(1:knon,:)
264       !IM 09122015 end
265       !
266    ELSE IF (iflag_albedo==1) THEN
267       !--new parametrization of ocean surface albedo by Sunghye Baek
268       !--albedo for direct and diffuse radiation are different
269       !
270       CALL ocean_albedo(knon,rmu0,knindex,windsp,SFRWL,alb_dir_new,alb_dif_new)
271       !
272       !--ad-hoc correction for model radiative balance tuning
273       alb_dir_new(1:knon,:) = fmagic*alb_dir_new(1:knon,:) + pmagic
274       alb_dif_new(1:knon,:) = fmagic*alb_dif_new(1:knon,:) + pmagic
275       alb_dir_new(1:knon,:)=MIN(MAX(alb_dir_new(1:knon,:),0.0),1.0)
276       alb_dif_new(1:knon,:)=MIN(MAX(alb_dif_new(1:knon,:),0.0),1.0)
277       !
278    ELSE IF (iflag_albedo==2) THEN
279       ! F. Codron albedo read from limit.nc
280       CALL limit_read_rug_alb(itime, dtime, jour,&
281            knon, knindex, z0_lim, alb_eau)
282       DO i =1, knon
283          DO  k=1,nsw
284             alb_dir_new(i,k) = alb_eau(i)
285          ENDDO
286       ENDDO
287       alb_dif_new=alb_dir_new
288    ENDIF
289    !albedo SB <<<
290
291    !******************************************************************************
292    ! Calculate the rugosity
293    !******************************************************************************
294    IF (iflag_z0_oce==0) THEN
295       DO i = 1, knon
296          tmp = MAX(cepdu2,gustiness(i)+u1(i)**2+v1(i)**2)
297          z0m(i) = 0.018*cdragm(i) * (gustiness(i)+u1(i)**2+v1(i)**2)/RG  &
298               +  0.11*14e-6 / SQRT(cdragm(i) * tmp)
299          z0m(i) = MAX(1.5e-05,z0m(i))
300       ENDDO
301       z0h(1:knon)=z0m(1:knon) ! En attendant mieux
302
303    ELSE IF (iflag_z0_oce==1) THEN
304       DO i = 1, knon
305          tmp = MAX(cepdu2,gustiness(i)+u1(i)**2+v1(i)**2)
306          z0m(i) = 0.018*cdragm(i) * (gustiness(i)+u1(i)**2+v1(i)**2)/RG  &
307               + 0.11*14e-6 / SQRT(cdragm(i) * tmp)
308          z0m(i) = MAX(1.5e-05,z0m(i))
309          z0h(i)=0.4*14e-6 / SQRT(cdragm(i) * tmp)
310       ENDDO
311    ELSE IF (iflag_z0_oce==-1) THEN
312       DO i = 1, knon
313          z0m(i) = z0min
314          z0h(i) = z0min
315       ENDDO
316    ELSE
317       CALL abort_physic(modname,'version non prevue',1)
318    ENDIF
319
320    if (activate_ocean_skin >= 1) then
321       rhoa = PS(:KNON) / (Rd * temp_air(:knon) * (1. + retv * spechum(:knon)))
322       xlv = rlvtt
323       precip_tot = precip_rain(:knon) + precip_snow(:knon)
324       rf =  sens_heat_rain(precip_tot, temp_air(:knon), spechum(:knon), rhoa, &
325            xlv, tsurf_in(:knon), ps(:knon))
326       if (type_ocean /= 'couple') sss(:knon) = 35.
327       call bulk_flux(tkt, tks, taur, dter, dser, t_int, s_int, ds_ns, dt_ns, &
328            u = windsp(:knon), t_ocean_1 = tsurf_new(:knon), s1 = sss(:knon), &
329            rain = precip_tot, hf = - fluxsens(:knon), hlb = - fluxlat(:knon), &
330            rnl = - lwnet(:knon), &
331            tau = sqrt(flux_u1(:knon)**2 + flux_v1(:knon)**2), rhoa = rhoa, &
332            xlv = xlv, rf = rf, dtime = dtime, rns = swnet(: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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