source: LMDZ6/branches/Amaury_dev/libf/phylmd/surf_ocean_mod.F90 @ 5119

Last change on this file since 5119 was 5117, checked in by abarral, 4 months ago

rename modules properly lmdz_*
move some unused files to obsolete/
(lint) uppercase fortran keywords
  • 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: 15.9 KB
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1! $Id: surf_ocean_mod.F90 5117 2024-07-24 14:23:34Z abarral $
2
3MODULE surf_ocean_mod
4
5  IMPLICIT NONE
6
7CONTAINS
8
9  !******************************************************************************
10
11  SUBROUTINE surf_ocean
12    (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    USE lmdz_abort_physic, ONLY: abort_physic
39#ifdef ISO
40    USE infotrac_phy, ONLY: ntraciso=>ntiso,niso
41#ifdef ISOVERIF
42    USE isotopes_mod, ONLY: iso_eau,ridicule
43    USE isotopes_verif_mod
44#endif
45#endif
46    USE limit_read_mod
47    USE config_ocean_skin_m, ONLY: activate_ocean_skin
48
49    ! This SUBROUTINE will make a CALL to ocean_XXX_noice according to the ocean mode (force,
50    ! slab or couple). The calculations of albedo and rugosity for the ocean surface are
51    ! done in here because they are identical for the different modes of ocean.
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 /= 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/='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>=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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