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sbcmod.F90 @ 8847

Last change on this file since 8847 was 8847, checked in by alexwestmohc, 6 years ago

Implementing new logicals to control coupling:

ln_meto_cpl - .TRUE. if Met Office style coupling is being used, i.e. if the
surface exchange is in the atmosphere. .FALSE. by default

nn_cats_cpl - the number of sea ice categories over which the coupling is being
carried out. 5 by default

In addition, the calculation of meltpond area, depth, top layer ice/snow temp
and sea surface freezing temperature has been corrected to be appropriate to LIM
variable names.

File size: 31.0 KB

Line
1	MODULE sbcmod
2	!!======================================================================
3	!! * MODULE sbcmod *
4	!! Surface module : provide to the ocean its surface boundary condition
5	!!======================================================================
6	!! History : 3.0 ! 2006-07 (G. Madec) Original code
7	!! 3.1 ! 2008-08 (S. Masson, A. Caubel, E. Maisonnave, G. Madec) coupled interface
8	!! 3.3 ! 2010-04 (M. Leclair, G. Madec) Forcing averaged over 2 time steps
9	!! 3.3 ! 2010-10 (S. Masson) add diurnal cycle
10	!! 3.3 ! 2010-09 (D. Storkey) add ice boundary conditions (BDY)
11	!! - ! 2010-11 (G. Madec) ice-ocean stress always computed at each ocean time-step
12	!! - ! 2010-10 (J. Chanut, C. Bricaud, G. Madec) add the surface pressure forcing
13	!! 3.4 ! 2011-11 (C. Harris) CICE added as an option
14	!! 3.5 ! 2012-11 (A. Coward, G. Madec) Rethink of heat, mass and salt surface fluxes
15	!! 3.6 ! 2014-11 (P. Mathiot, C. Harris) add ice shelves melting
16	!! 4.0 ! 2016-06 (L. Brodeau) new general bulk formulation
17	!!----------------------------------------------------------------------
18
19	!!----------------------------------------------------------------------
20	!! sbc_init : read namsbc namelist
21	!! sbc : surface ocean momentum, heat and freshwater boundary conditions
22	!! sbc_final : Finalize CICE ice model (if used)
23	!!----------------------------------------------------------------------
24	USE oce ! ocean dynamics and tracers
25	USE dom_oce ! ocean space and time domain
26	USE phycst ! physical constants
27	USE sbc_oce ! Surface boundary condition: ocean fields
28	USE trc_oce ! shared ocean-passive tracers variables
29	USE sbc_ice ! Surface boundary condition: ice fields
30	USE sbcdcy ! surface boundary condition: diurnal cycle
31	USE sbcssm ! surface boundary condition: sea-surface mean variables
32	USE sbcflx ! surface boundary condition: flux formulation
33	USE sbcblk ! surface boundary condition: bulk formulation
34	USE sbcice_if ! surface boundary condition: ice-if sea-ice model
35	#if defined key_lim3
36	USE icestp ! surface boundary condition: LIM 3.0 sea-ice model
37	#endif
38	USE sbcice_cice ! surface boundary condition: CICE sea-ice model
39	USE sbcisf ! surface boundary condition: ice-shelf
40	USE sbccpl ! surface boundary condition: coupled formulation
41	USE cpl_oasis3 ! OASIS routines for coupling
42	USE sbcssr ! surface boundary condition: sea surface restoring
43	USE sbcrnf ! surface boundary condition: runoffs
44	USE sbcisf ! surface boundary condition: ice shelf
45	USE sbcfwb ! surface boundary condition: freshwater budget
46	USE icbstp ! Icebergs
47	USE traqsr ! active tracers: light penetration
48	USE sbcwave ! Wave module
49	USE bdy_oce , ONLY: ln_bdy
50	USE usrdef_sbc ! user defined: surface boundary condition
51	USE usrdef_closea ! user defined: closed sea
52	!
53	USE prtctl ! Print control (prt_ctl routine)
54	USE iom ! IOM library
55	USE in_out_manager ! I/O manager
56	USE lib_mpp ! MPP library
57	USE timing ! Timing
58
59	USE diurnal_bulk, ONLY: ln_diurnal_only ! diurnal SST diagnostic
60
61	IMPLICIT NONE
62	PRIVATE
63
64	PUBLIC sbc ! routine called by step.F90
65	PUBLIC sbc_init ! routine called by opa.F90
66
67	INTEGER :: nsbc ! type of surface boundary condition (deduced from namsbc informations)
68
69	!!----------------------------------------------------------------------
70	!! NEMO/OPA 4.0 , NEMO-consortium (2016)
71	!! $Id$
72	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
73	!!----------------------------------------------------------------------
74	CONTAINS
75
76	SUBROUTINE sbc_init
77	!!---------------------------------------------------------------------
78	!! * ROUTINE sbc_init *
79	!!
80	!! ** Purpose : Initialisation of the ocean surface boundary computation
81	!!
82	!! ** Method : Read the namsbc namelist and set derived parameters
83	!! Call init routines for all other SBC modules that have one
84	!!
85	!! ** Action : - read namsbc parameters
86	!! - nsbc: type of sbc
87	!!----------------------------------------------------------------------
88	INTEGER :: ios, icpt ! local integer
89	LOGICAL :: ll_purecpl, ll_opa, ll_not_nemo ! local logical
90	!!
91	NAMELIST/namsbc/ nn_fsbc , &
92	& ln_usr , ln_flx , ln_blk , &
93	& ln_cpl , ln_mixcpl, ln_meto_cpl , nn_components, &
94	& nn_ice , ln_ice_embd, &
95	& ln_traqsr, ln_dm2dc , &
96	& ln_rnf , nn_fwb , ln_ssr , ln_isf , ln_apr_dyn , &
97	& ln_wave , ln_cdgw , ln_sdw , ln_tauoc , ln_stcor , &
98	& nn_lsm
99	!!----------------------------------------------------------------------
100	!
101	IF(lwp) THEN
102	WRITE(numout,*)
103	WRITE(numout,*) 'sbc_init : surface boundary condition setting'
104	WRITE(numout,*) '~~~~~~~~ '
105	ENDIF
106	!
107	! !** read Surface Module namelist
108	REWIND( numnam_ref ) !* Namelist namsbc in reference namelist : Surface boundary
109	READ ( numnam_ref, namsbc, IOSTAT = ios, ERR = 901)
110	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc in reference namelist', lwp )
111	!
112	REWIND( numnam_cfg ) !* Namelist namsbc in configuration namelist : Parameters of the run
113	READ ( numnam_cfg, namsbc, IOSTAT = ios, ERR = 902 )
114	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc in configuration namelist', lwp )
115	IF(lwm) WRITE( numond, namsbc )
116	!
117	! !* overwrite namelist parameter using CPP key information
118	#if defined key_agrif
119	IF( Agrif_Root() ) THEN ! AGRIF zoom (cf r1242: possibility to run without ice in fine grid)
120	IF( lk_lim3 ) nn_ice = 2
121	IF( lk_cice ) nn_ice = 3
122	ENDIF
123	#else
124	IF( lk_lim3 ) nn_ice = 2
125	IF( lk_cice ) nn_ice = 3
126	#endif
127	!
128	IF(lwp) THEN !* Control print
129	WRITE(numout,*) ' Namelist namsbc (partly overwritten with CPP key setting)'
130	WRITE(numout,*) ' frequency update of sbc (and ice) nn_fsbc = ', nn_fsbc
131	WRITE(numout,*) ' Type of air-sea fluxes : '
132	WRITE(numout,*) ' user defined formulation ln_usr = ', ln_usr
133	WRITE(numout,*) ' flux formulation ln_flx = ', ln_flx
134	WRITE(numout,*) ' bulk formulation ln_blk = ', ln_blk
135	WRITE(numout,*) ' Type of coupling (Ocean/Ice/Atmosphere) : '
136	WRITE(numout,*) ' ocean-atmosphere coupled formulation ln_cpl = ', ln_cpl
137	WRITE(numout,*) ' mixed forced-coupled formulation ln_mixcpl = ', ln_mixcpl
138	!!gm lk_oasis is controlled by key_oasis3 ===>>> It shoud be removed from the namelist
139	WRITE(numout,*) ' Met Office coupling formulation ln_mixcpl = ', ln_meto_cpl
140	WRITE(numout,*) ' OASIS coupling (with atm or sas) lk_oasis = ', lk_oasis
141	WRITE(numout,*) ' components of your executable nn_components = ', nn_components
142	WRITE(numout,*) ' Sea-ice : '
143	WRITE(numout,*) ' ice management in the sbc (=0/1/2/3) nn_ice = ', nn_ice
144	WRITE(numout,*) ' ice embedded into ocean ln_ice_embd = ', ln_ice_embd
145	WRITE(numout,*) ' Misc. options of sbc : '
146	WRITE(numout,*) ' Light penetration in temperature Eq. ln_traqsr = ', ln_traqsr
147	WRITE(numout,*) ' daily mean to diurnal cycle qsr ln_dm2dc = ', ln_dm2dc
148	WRITE(numout,*) ' Sea Surface Restoring on SST and/or SSS ln_ssr = ', ln_ssr
149	WRITE(numout,*) ' FreshWater Budget control (=0/1/2) nn_fwb = ', nn_fwb
150	WRITE(numout,*) ' Patm gradient added in ocean & ice Eqs. ln_apr_dyn = ', ln_apr_dyn
151	WRITE(numout,*) ' runoff / runoff mouths ln_rnf = ', ln_rnf
152	WRITE(numout,*) ' iceshelf formulation ln_isf = ', ln_isf
153	WRITE(numout,*) ' closed sea (=0/1) (set in namdom) nn_closea = ', nn_closea
154	WRITE(numout,*) ' nb of iterations if land-sea-mask applied nn_lsm = ', nn_lsm
155	WRITE(numout,*) ' surface wave ln_wave = ', ln_wave
156	WRITE(numout,*) ' Stokes drift corr. to vert. velocity ln_sdw = ', ln_sdw
157	WRITE(numout,*) ' wave modified ocean stress ln_tauoc = ', ln_tauoc
158	WRITE(numout,*) ' Stokes coriolis term ln_stcor = ', ln_stcor
159	WRITE(numout,*) ' neutral drag coefficient (CORE, MFS) ln_cdgw = ', ln_cdgw
160	ENDIF
161	!
162	IF( .NOT.ln_usr ) THEN ! the model calendar needs some specificities (except in user defined case)
163	IF( MOD( rday , rdt ) /= 0. ) CALL ctl_stop( 'the time step must devide the number of second of in a day' )
164	IF( MOD( rday , 2. ) /= 0. ) CALL ctl_stop( 'the number of second of in a day must be an even number' )
165	IF( MOD( rdt , 2. ) /= 0. ) CALL ctl_stop( 'the time step (in second) must be an even number' )
166	ENDIF
167	! !** check option consistency
168	!
169	IF(lwp) WRITE(numout,) ! Single / Multi - executable (NEMO / OPA+SAS)
170	SELECT CASE( nn_components )
171	CASE( jp_iam_nemo )
172	IF(lwp) WRITE(numout,*) ' NEMO configured as a single executable (i.e. including both OPA and Surface module'
173	CASE( jp_iam_opa )
174	IF(lwp) WRITE(numout,*) ' Multi executable configuration. Here, OPA component'
175	IF( .NOT.lk_oasis ) CALL ctl_stop( 'sbc_init : OPA-SAS coupled via OASIS, but key_oasis3 disabled' )
176	IF( ln_cpl ) CALL ctl_stop( 'sbc_init : OPA-SAS coupled via OASIS, but ln_cpl = T in OPA' )
177	IF( ln_mixcpl ) CALL ctl_stop( 'sbc_init : OPA-SAS coupled via OASIS, but ln_mixcpl = T in OPA' )
178	CASE( jp_iam_sas )
179	IF(lwp) WRITE(numout,*) ' Multi executable configuration. Here, SAS component'
180	IF( .NOT.lk_oasis ) CALL ctl_stop( 'sbc_init : OPA-SAS coupled via OASIS, but key_oasis3 disabled' )
181	IF( ln_mixcpl ) CALL ctl_stop( 'sbc_init : OPA-SAS coupled via OASIS, but ln_mixcpl = T in OPA' )
182	CASE DEFAULT
183	CALL ctl_stop( 'sbc_init : unsupported value for nn_components' )
184	END SELECT
185	! !* coupled options
186	IF( ln_cpl ) THEN
187	IF( .NOT. lk_oasis ) CALL ctl_stop( 'sbc_init : coupled mode with an atmosphere model (ln_cpl=T)', &
188	& ' required to defined key_oasis3' )
189	ENDIF
190	IF( ln_mixcpl ) THEN
191	IF( .NOT. lk_oasis ) CALL ctl_stop( 'sbc_init : mixed forced-coupled mode (ln_mixcpl=T) ', &
192	& ' required to defined key_oasis3' )
193	IF( .NOT.ln_cpl ) CALL ctl_stop( 'sbc_init : mixed forced-coupled mode (ln_mixcpl=T) requires ln_cpl = T' )
194	IF( nn_components /= jp_iam_nemo ) &
195	& CALL ctl_stop( 'sbc_init : the mixed forced-coupled mode (ln_mixcpl=T) ', &
196	& ' not yet working with sas-opa coupling via oasis' )
197	ENDIF
198	! !* sea-ice
199	SELECT CASE( nn_ice )
200	CASE( 0 ) !- no ice in the domain
201	CASE( 1 ) !- Ice-cover climatology ("Ice-if" model)
202	CASE( 2 ) !- LIM3 ice model
203	CASE( 3 ) !- CICE ice model
204	IF( .NOT.( ln_blk .OR. ln_cpl ) ) CALL ctl_stop( 'sbc_init : CICE sea-ice model requires ln_blk or ln_cpl = T' )
205	IF( lk_agrif ) CALL ctl_stop( 'sbc_init : CICE sea-ice model not currently available with AGRIF' )
206	CASE DEFAULT !- not supported
207	END SELECT
208	!
209	! !** allocate and set required variables
210	!
211	! !* allocate sbc arrays
212	IF( sbc_oce_alloc() /= 0 ) CALL ctl_stop( 'sbc_init : unable to allocate sbc_oce arrays' )
213	#if ! defined key_lim3 && ! defined key_cice
214	IF( sbc_ice_alloc() /= 0 ) CALL ctl_stop( 'sbc_init : unable to allocate sbc_ice arrays' )
215	#endif
216	!
217	IF( .NOT.ln_isf ) THEN !* No ice-shelf in the domain : allocate and set to zero
218	IF( sbc_isf_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_init : unable to allocate sbc_isf arrays' )
219	fwfisf (:,:) = 0._wp ; risf_tsc (:,:,:) = 0._wp
220	fwfisf_b(:,:) = 0._wp ; risf_tsc_b(:,:,:) = 0._wp
221	END IF
222	IF( nn_ice == 0 ) THEN !* No sea-ice in the domain : ice fraction is always zero
223	IF( nn_components /= jp_iam_opa ) fr_i(:,:) = 0._wp ! except for OPA in SAS-OPA coupled case
224	ENDIF
225	!
226	sfx (:,:) = 0._wp !* salt flux due to freezing/melting
227	fmmflx(:,:) = 0._wp !* freezing minus melting flux
228
229	taum(:,:) = 0._wp !* wind stress module (needed in GLS in case of reduced restart)
230
231	! ! Choice of the Surface Boudary Condition (set nsbc)
232	IF( ln_dm2dc ) THEN !* daily mean to diurnal cycle
233	nday_qsr = -1 ! allow initialization at the 1st call
234	IF( .NOT.( ln_flx .OR. ln_blk ) .AND. nn_components /= jp_iam_opa ) &
235	& CALL ctl_stop( 'qsr diurnal cycle from daily values requires a flux or bulk formulation' )
236	ENDIF
237	! !* Choice of the Surface Boudary Condition
238	! (set nsbc)
239	!
240	ll_purecpl = ln_cpl .AND. .NOT.ln_mixcpl
241	ll_opa = nn_components == jp_iam_opa
242	ll_not_nemo = nn_components /= jp_iam_nemo
243	icpt = 0
244	!
245	IF( ln_usr ) THEN ; nsbc = jp_usr ; icpt = icpt + 1 ; ENDIF ! user defined formulation
246	IF( ln_flx ) THEN ; nsbc = jp_flx ; icpt = icpt + 1 ; ENDIF ! flux formulation
247	IF( ln_blk ) THEN ; nsbc = jp_blk ; icpt = icpt + 1 ; ENDIF ! bulk formulation
248	IF( ll_purecpl ) THEN ; nsbc = jp_purecpl ; icpt = icpt + 1 ; ENDIF ! Pure Coupled formulation
249	IF( ll_opa ) THEN ; nsbc = jp_none ; icpt = icpt + 1 ; ENDIF ! opa coupling via SAS module
250	!
251	IF( icpt /= 1 ) CALL ctl_stop( 'sbc_init : choose ONE and only ONE sbc option' )
252	!
253	IF(lwp) THEN !- print the choice of surface flux formulation
254	WRITE(numout,*)
255	SELECT CASE( nsbc )
256	CASE( jp_usr ) ; WRITE(numout,*) ' user defined formulation'
257	CASE( jp_flx ) ; WRITE(numout,*) ' ===>> flux formulation'
258	CASE( jp_blk ) ; WRITE(numout,*) ' ===>> bulk formulation'
259	CASE( jp_purecpl ) ; WRITE(numout,*) ' ===>> pure coupled formulation'
260	!!gm abusive use of jp_none ?? ===>>> need to be check and changed by adding a jp_sas parameter
261	CASE( jp_none ) ; WRITE(numout,*) ' ===>> OPA coupled to SAS via oasis'
262	IF( ln_mixcpl ) WRITE(numout,*) ' + forced-coupled mixed formulation'
263	END SELECT
264	IF( ll_not_nemo ) WRITE(numout,*) ' + OASIS coupled SAS'
265	ENDIF
266	!
267	! !* OASIS initialization
268	!
269	IF( lk_oasis ) CALL sbc_cpl_init( nn_ice ) ! Must be done before: (1) first time step
270	! ! (2) the use of nn_fsbc
271	! nn_fsbc initialization if OPA-SAS coupling via OASIS
272	! SAS time-step has to be declared in OASIS (mandatory) -> nn_fsbc has to be modified accordingly
273	IF( nn_components /= jp_iam_nemo ) THEN
274	IF( nn_components == jp_iam_opa ) nn_fsbc = cpl_freq('O_SFLX') / NINT(rdt)
275	IF( nn_components == jp_iam_sas ) nn_fsbc = cpl_freq('I_SFLX') / NINT(rdt)
276	!
277	IF(lwp)THEN
278	WRITE(numout,*)
279	WRITE(numout,*)" OPA-SAS coupled via OASIS : nn_fsbc re-defined from OASIS namcouple ", nn_fsbc
280	WRITE(numout,*)
281	ENDIF
282	ENDIF
283	!
284	! !* check consistency between model timeline and nn_fsbc
285	IF( MOD( nitend - nit000 + 1, nn_fsbc) /= 0 .OR. &
286	MOD( nstock , nn_fsbc) /= 0 ) THEN
287	WRITE(ctmp1,*) 'sbc_init : experiment length (', nitend - nit000 + 1, ') or nstock (', nstock, &
288	& ' is NOT a multiple of nn_fsbc (', nn_fsbc, ')'
289	CALL ctl_stop( ctmp1, 'Impossible to properly do model restart' )
290	ENDIF
291	!
292	IF( MOD( rday, REAL(nn_fsbc, wp) * rdt ) /= 0 ) &
293	& CALL ctl_warn( 'sbc_init : nn_fsbc is NOT a multiple of the number of time steps in a day' )
294	!
295	IF( ln_dm2dc .AND. NINT(rday) / ( nn_fsbc * NINT(rdt) ) < 8 ) &
296	& CALL ctl_warn( 'sbc_init : diurnal cycle for qsr: the sampling of the diurnal cycle is too small...' )
297	!
298
299	! !** associated modules : initialization
300	!
301	CALL sbc_ssm_init ! Sea-surface mean fields initialization
302	!
303	IF( ln_blk ) CALL sbc_blk_init ! bulk formulae initialization
304
305	IF( ln_ssr ) CALL sbc_ssr_init ! Sea-Surface Restoring initialization
306	!
307	IF( ln_isf ) CALL sbc_isf_init ! Compute iceshelves
308	!
309	CALL sbc_rnf_init ! Runof initialization
310	!
311	#if defined key_lim3
312	IF ( lk_agrif .AND. nn_ice == 0 ) THEN
313	IF( sbc_ice_alloc() /= 0 ) CALL ctl_stop('STOP', 'sbc_ice_alloc : unable to allocate arrays' ) ! clem2017: allocate ice arrays in case agrif + lim + no-ice in child grid
314	ELSEIF( nn_ice == 2 ) THEN
315	CALL ice_init ! LIM3 initialization
316	ENDIF
317	#endif
318	IF( nn_ice == 3 ) CALL cice_sbc_init( nsbc ) ! CICE initialization
319	!
320	IF( ln_wave ) CALL sbc_wave_init ! surface wave initialisation
321	!
322	END SUBROUTINE sbc_init
323
324
325	SUBROUTINE sbc( kt )
326	!!---------------------------------------------------------------------
327	!! * ROUTINE sbc *
328	!!
329	!! ** Purpose : provide at each time-step the ocean surface boundary
330	!! condition (momentum, heat and freshwater fluxes)
331	!!
332	!! ** Method : blah blah to be written ?????????
333	!! CAUTION : never mask the surface stress field (tke sbc)
334	!!
335	!! ** Action : - set the ocean surface boundary condition at before and now
336	!! time step, i.e.
337	!! utau_b, vtau_b, qns_b, qsr_b, emp_n, sfx_b, qrp_b, erp_b
338	!! utau , vtau , qns , qsr , emp , sfx , qrp , erp
339	!! - updte the ice fraction : fr_i
340	!!----------------------------------------------------------------------
341	INTEGER, INTENT(in) :: kt ! ocean time step
342	!
343	LOGICAL :: ll_sas, ll_opa ! local logical
344	!!---------------------------------------------------------------------
345	!
346	IF( nn_timing == 1 ) CALL timing_start('sbc')
347	!
348	! ! ---------------------------------------- !
349	IF( kt /= nit000 ) THEN ! Swap of forcing fields !
350	! ! ---------------------------------------- !
351	utau_b(:,:) = utau(:,:) ! Swap the ocean forcing fields
352	vtau_b(:,:) = vtau(:,:) ! (except at nit000 where before fields
353	qns_b (:,:) = qns (:,:) ! are set at the end of the routine)
354	emp_b (:,:) = emp (:,:)
355	sfx_b (:,:) = sfx (:,:)
356	IF ( ln_rnf ) THEN
357	rnf_b (:,: ) = rnf (:,: )
358	rnf_tsc_b(:,:,:) = rnf_tsc(:,:,:)
359	ENDIF
360	IF( ln_isf ) THEN
361	fwfisf_b (:,: ) = fwfisf (:,: )
362	risf_tsc_b(:,:,:) = risf_tsc(:,:,:)
363	ENDIF
364	!
365	ENDIF
366	! ! ---------------------------------------- !
367	! ! forcing field computation !
368	! ! ---------------------------------------- !
369	!
370	ll_sas = nn_components == jp_iam_sas ! component flags
371	ll_opa = nn_components == jp_iam_opa
372	!
373	IF( .NOT.ll_sas ) CALL sbc_ssm ( kt ) ! mean ocean sea surface variables (sst_m, sss_m, ssu_m, ssv_m)
374	IF( ln_wave ) CALL sbc_wave( kt ) ! surface waves
375
376	!
377	! !== sbc formulation ==!
378	!
379	SELECT CASE( nsbc ) ! Compute ocean surface boundary condition
380	! ! (i.e. utau,vtau, qns, qsr, emp, sfx)
381	CASE( jp_usr ) ; CALL usrdef_sbc_oce( kt ) ! user defined formulation
382	CASE( jp_flx ) ; CALL sbc_flx ( kt ) ! flux formulation
383	CASE( jp_blk )
384	IF( ll_sas ) CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! OPA-SAS coupling: SAS receiving fields from OPA
385	CALL sbc_blk ( kt ) ! bulk formulation for the ocean
386	!
387	CASE( jp_purecpl ) ; CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! pure coupled formulation
388	CASE( jp_none )
389	IF( ll_opa ) CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! OPA-SAS coupling: OPA receiving fields from SAS
390	END SELECT
391	IF ( ln_wave .AND. ln_tauoc) THEN ! Wave stress subctracted
392	utau(:,:) = utau(:,:)*tauoc_wave(:,:)
393	vtau(:,:) = vtau(:,:)*tauoc_wave(:,:)
394	taum(:,:) = taum(:,:)*tauoc_wave(:,:)
395	!
396	SELECT CASE( nsbc )
397	CASE( 0,1,2,3,5,-1 ) ;
398	IF(lwp .AND. kt == nit000 ) WRITE(numout,*) 'WARNING: You are subtracting the wave stress to the ocean. &
399	& If not requested select ln_tauoc=.false'
400	END SELECT
401	!
402	END IF
403	IF( ln_mixcpl ) CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! forced-coupled mixed formulation after forcing
404
405	!
406	! !== Misc. Options ==!
407	!
408	SELECT CASE( nn_ice ) ! Update heat and freshwater fluxes over sea-ice areas
409	CASE( 1 ) ; CALL sbc_ice_if ( kt ) ! Ice-cover climatology ("Ice-if" model)
410	#if defined key_lim3
411	CASE( 2 ) ; CALL ice_stp ( kt, nsbc ) ! LIM-3 ice model
412	#endif
413	CASE( 3 ) ; CALL sbc_ice_cice ( kt, nsbc ) ! CICE ice model
414	END SELECT
415
416	IF( ln_icebergs ) CALL icb_stp( kt ) ! compute icebergs
417
418	IF( ln_isf ) CALL sbc_isf( kt ) ! compute iceshelves
419
420	IF( ln_rnf ) CALL sbc_rnf( kt ) ! add runoffs to fresh water fluxes
421
422	IF( ln_ssr ) CALL sbc_ssr( kt ) ! add SST/SSS damping term
423
424	IF( nn_fwb /= 0 ) CALL sbc_fwb( kt, nn_fwb, nn_fsbc ) ! control the freshwater budget
425
426	! treatment of closed sea in the model domain (update freshwater fluxes)
427	! Should not be ran if ln_diurnal_only
428	IF( .NOT.ln_diurnal_only .AND. nn_closea == 1 ) CALL sbc_clo( kt, cn_cfg, nn_cfg )
429
430	!RBbug do not understand why see ticket 667
431	!clem: it looks like it is necessary for the north fold (in certain circumstances). Don't know why.
432	CALL lbc_lnk( emp, 'T', 1. )
433	!
434	IF( kt == nit000 ) THEN ! set the forcing field at nit000 - 1 !
435	! ! ---------------------------------------- !
436	IF( ln_rstart .AND. & !* Restart: read in restart file
437	& iom_varid( numror, 'utau_b', ldstop = .FALSE. ) > 0 ) THEN
438	IF(lwp) WRITE(numout,*) ' nit000-1 surface forcing fields red in the restart file'
439	CALL iom_get( numror, jpdom_autoglo, 'utau_b', utau_b ) ! before i-stress (U-point)
440	CALL iom_get( numror, jpdom_autoglo, 'vtau_b', vtau_b ) ! before j-stress (V-point)
441	CALL iom_get( numror, jpdom_autoglo, 'qns_b' , qns_b ) ! before non solar heat flux (T-point)
442	! The 3D heat content due to qsr forcing is treated in traqsr
443	! CALL iom_get( numror, jpdom_autoglo, 'qsr_b' , qsr_b ) ! before solar heat flux (T-point)
444	CALL iom_get( numror, jpdom_autoglo, 'emp_b', emp_b ) ! before freshwater flux (T-point)
445	! To ensure restart capability with 3.3x/3.4 restart files !! to be removed in v3.6
446	IF( iom_varid( numror, 'sfx_b', ldstop = .FALSE. ) > 0 ) THEN
447	CALL iom_get( numror, jpdom_autoglo, 'sfx_b', sfx_b ) ! before salt flux (T-point)
448	ELSE
449	sfx_b (:,:) = sfx(:,:)
450	ENDIF
451	ELSE !* no restart: set from nit000 values
452	IF(lwp) WRITE(numout,*) ' nit000-1 surface forcing fields set to nit000'
453	utau_b(:,:) = utau(:,:)
454	vtau_b(:,:) = vtau(:,:)
455	qns_b (:,:) = qns (:,:)
456	emp_b (:,:) = emp (:,:)
457	sfx_b (:,:) = sfx (:,:)
458	ENDIF
459	ENDIF
460	! ! ---------------------------------------- !
461	IF( lrst_oce ) THEN ! Write in the ocean restart file !
462	! ! ---------------------------------------- !
463	IF(lwp) WRITE(numout,*)
464	IF(lwp) WRITE(numout,*) 'sbc : ocean surface forcing fields written in ocean restart file ', &
465	& 'at it= ', kt,' date= ', ndastp
466	IF(lwp) WRITE(numout,*) '~~~~'
467	CALL iom_rstput( kt, nitrst, numrow, 'utau_b' , utau )
468	CALL iom_rstput( kt, nitrst, numrow, 'vtau_b' , vtau )
469	CALL iom_rstput( kt, nitrst, numrow, 'qns_b' , qns )
470	! The 3D heat content due to qsr forcing is treated in traqsr
471	! CALL iom_rstput( kt, nitrst, numrow, 'qsr_b' , qsr )
472	CALL iom_rstput( kt, nitrst, numrow, 'emp_b' , emp )
473	CALL iom_rstput( kt, nitrst, numrow, 'sfx_b' , sfx )
474	ENDIF
475	! ! ---------------------------------------- !
476	! ! Outputs and control print !
477	! ! ---------------------------------------- !
478	IF( MOD( kt-1, nn_fsbc ) == 0 ) THEN
479	CALL iom_put( "empmr" , emp - rnf ) ! upward water flux
480	CALL iom_put( "empbmr" , emp_b - rnf ) ! before upward water flux ( needed to recalculate the time evolution of ssh in offline )
481	CALL iom_put( "saltflx", sfx ) ! downward salt flux (includes virtual salt flux beneath ice in linear free surface case)
482	CALL iom_put( "fmmflx", fmmflx ) ! Freezing-melting water flux
483	CALL iom_put( "qt" , qns + qsr ) ! total heat flux
484	CALL iom_put( "qns" , qns ) ! solar heat flux
485	CALL iom_put( "qsr" , qsr ) ! solar heat flux
486	IF( nn_ice > 0 .OR. ll_opa ) CALL iom_put( "ice_cover", fr_i ) ! ice fraction
487	CALL iom_put( "taum" , taum ) ! wind stress module
488	CALL iom_put( "wspd" , wndm ) ! wind speed module over free ocean or leads in presence of sea-ice
489	ENDIF
490	!
491	CALL iom_put( "utau", utau ) ! i-wind stress (stress can be updated at each time step in sea-ice)
492	CALL iom_put( "vtau", vtau ) ! j-wind stress
493	!
494	IF(ln_ctl) THEN ! print mean trends (used for debugging)
495	CALL prt_ctl(tab2d_1=fr_i , clinfo1=' fr_i - : ', mask1=tmask, ovlap=1 )
496	CALL prt_ctl(tab2d_1=(emp-rnf + fwfisf), clinfo1=' emp-rnf - : ', mask1=tmask, ovlap=1 )
497	CALL prt_ctl(tab2d_1=(sfx-rnf + fwfisf), clinfo1=' sfx-rnf - : ', mask1=tmask, ovlap=1 )
498	CALL prt_ctl(tab2d_1=qns , clinfo1=' qns - : ', mask1=tmask, ovlap=1 )
499	CALL prt_ctl(tab2d_1=qsr , clinfo1=' qsr - : ', mask1=tmask, ovlap=1 )
500	CALL prt_ctl(tab3d_1=tmask , clinfo1=' tmask - : ', mask1=tmask, ovlap=1, kdim=jpk )
501	CALL prt_ctl(tab3d_1=tsn(:,:,:,jp_tem), clinfo1=' sst - : ', mask1=tmask, ovlap=1, kdim=1 )
502	CALL prt_ctl(tab3d_1=tsn(:,:,:,jp_sal), clinfo1=' sss - : ', mask1=tmask, ovlap=1, kdim=1 )
503	CALL prt_ctl(tab2d_1=utau , clinfo1=' utau - : ', mask1=umask, &
504	& tab2d_2=vtau , clinfo2=' vtau - : ', mask2=vmask, ovlap=1 )
505	ENDIF
506
507	IF( kt == nitend ) CALL sbc_final ! Close down surface module if necessary
508	!
509	IF( nn_timing == 1 ) CALL timing_stop('sbc')
510	!
511	END SUBROUTINE sbc
512
513
514	SUBROUTINE sbc_final
515	!!---------------------------------------------------------------------
516	!! * ROUTINE sbc_final *
517	!!
518	!! ** Purpose : Finalize CICE (if used)
519	!!---------------------------------------------------------------------
520	!
521	IF( nn_ice == 3 ) CALL cice_sbc_final
522	!
523	END SUBROUTINE sbc_final
524
525	!!======================================================================
526	END MODULE sbcmod

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source: branches/UKMO/dev_r8183_ICEMODEL_svn_removed/NEMOGCM/NEMO/OPA_SRC/SBC/sbcmod.F90 @ 8847

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