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sbccpl.F90 in branches/2015/dev_r5218_CNRS17_coupling/NEMOGCM/NEMO/OPA_SRC/SBC – NEMO

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source: branches/2015/dev_r5218_CNRS17_coupling/NEMOGCM/NEMO/OPA_SRC/SBC/sbccpl.F90 @ 5357

Last change on this file since 5357 was 5357, checked in by clem, 9 years ago
LIM3: change the interface between the ice and atm for both coupled and forced modes. Some work still needs to be done to deal with sublimation in coupled mode.
Property svn:keywords set to `Id`
File size: 118.0 KB

Line
1	MODULE sbccpl
2	!!======================================================================
3	!! * MODULE sbccpl *
4	!! Surface Boundary Condition : momentum, heat and freshwater fluxes in coupled mode
5	!!======================================================================
6	!! History : 2.0 ! 2007-06 (R. Redler, N. Keenlyside, W. Park) Original code split into flxmod & taumod
7	!! 3.0 ! 2008-02 (G. Madec, C Talandier) surface module
8	!! 3.1 ! 2009_02 (G. Madec, S. Masson, E. Maisonave, A. Caubel) generic coupled interface
9	!! 3.4 ! 2011_11 (C. Harris) more flexibility + multi-category fields
10	!!----------------------------------------------------------------------
11	!!----------------------------------------------------------------------
12	!! namsbc_cpl : coupled formulation namlist
13	!! sbc_cpl_init : initialisation of the coupled exchanges
14	!! sbc_cpl_rcv : receive fields from the atmosphere over the ocean (ocean only)
15	!! receive stress from the atmosphere over the ocean (ocean-ice case)
16	!! sbc_cpl_ice_tau : receive stress from the atmosphere over ice
17	!! sbc_cpl_ice_flx : receive fluxes from the atmosphere over ice
18	!! sbc_cpl_snd : send fields to the atmosphere
19	!!----------------------------------------------------------------------
20	USE dom_oce ! ocean space and time domain
21	USE sbc_oce ! Surface boundary condition: ocean fields
22	USE sbc_ice ! Surface boundary condition: ice fields
23	USE sbcapr
24	USE sbcdcy ! surface boundary condition: diurnal cycle
25	USE phycst ! physical constants
26	#if defined key_lim3
27	USE ice ! ice variables
28	#endif
29	#if defined key_lim2
30	USE par_ice_2 ! ice parameters
31	USE ice_2 ! ice variables
32	#endif
33	USE cpl_oasis3 ! OASIS3 coupling
34	USE geo2ocean !
35	USE oce , ONLY : tsn, un, vn, sshn, ub, vb, tsb, sshb
36	USE albedo !
37	USE in_out_manager ! I/O manager
38	USE iom ! NetCDF library
39	USE lib_mpp ! distribued memory computing library
40	USE wrk_nemo ! work arrays
41	USE timing ! Timing
42	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
43	USE eosbn2
44	#if defined key_cpl_carbon_cycle
45	USE p4zflx, ONLY : oce_co2
46	#endif
47	#if defined key_cice
48	USE ice_domain_size, only: ncat
49	#endif
50	#if defined key_lim3
51	USE limthd_dh ! for CALL lim_thd_snwblow
52	#endif
53
54	IMPLICIT NONE
55	PRIVATE
56
57	PUBLIC sbc_cpl_init ! routine called by sbcmod.F90
58	PUBLIC sbc_cpl_rcv ! routine called by sbc_ice_lim(_2).F90
59	PUBLIC sbc_cpl_snd ! routine called by step.F90
60	PUBLIC sbc_cpl_ice_tau ! routine called by sbc_ice_lim(_2).F90
61	PUBLIC sbc_cpl_ice_flx ! routine called by sbc_ice_lim(_2).F90
62	PUBLIC sbc_cpl_alloc ! routine called in sbcice_cice.F90
63
64	INTEGER, PARAMETER :: jpr_otx1 = 1 ! 3 atmosphere-ocean stress components on grid 1
65	INTEGER, PARAMETER :: jpr_oty1 = 2 !
66	INTEGER, PARAMETER :: jpr_otz1 = 3 !
67	INTEGER, PARAMETER :: jpr_otx2 = 4 ! 3 atmosphere-ocean stress components on grid 2
68	INTEGER, PARAMETER :: jpr_oty2 = 5 !
69	INTEGER, PARAMETER :: jpr_otz2 = 6 !
70	INTEGER, PARAMETER :: jpr_itx1 = 7 ! 3 atmosphere-ice stress components on grid 1
71	INTEGER, PARAMETER :: jpr_ity1 = 8 !
72	INTEGER, PARAMETER :: jpr_itz1 = 9 !
73	INTEGER, PARAMETER :: jpr_itx2 = 10 ! 3 atmosphere-ice stress components on grid 2
74	INTEGER, PARAMETER :: jpr_ity2 = 11 !
75	INTEGER, PARAMETER :: jpr_itz2 = 12 !
76	INTEGER, PARAMETER :: jpr_qsroce = 13 ! Qsr above the ocean
77	INTEGER, PARAMETER :: jpr_qsrice = 14 ! Qsr above the ice
78	INTEGER, PARAMETER :: jpr_qsrmix = 15
79	INTEGER, PARAMETER :: jpr_qnsoce = 16 ! Qns above the ocean
80	INTEGER, PARAMETER :: jpr_qnsice = 17 ! Qns above the ice
81	INTEGER, PARAMETER :: jpr_qnsmix = 18
82	INTEGER, PARAMETER :: jpr_rain = 19 ! total liquid precipitation (rain)
83	INTEGER, PARAMETER :: jpr_snow = 20 ! solid precipitation over the ocean (snow)
84	INTEGER, PARAMETER :: jpr_tevp = 21 ! total evaporation
85	INTEGER, PARAMETER :: jpr_ievp = 22 ! solid evaporation (sublimation)
86	INTEGER, PARAMETER :: jpr_sbpr = 23 ! sublimation - liquid precipitation - solid precipitation
87	INTEGER, PARAMETER :: jpr_semp = 24 ! solid freshwater budget (sublimation - snow)
88	INTEGER, PARAMETER :: jpr_oemp = 25 ! ocean freshwater budget (evap - precip)
89	INTEGER, PARAMETER :: jpr_w10m = 26 ! 10m wind
90	INTEGER, PARAMETER :: jpr_dqnsdt = 27 ! d(Q non solar)/d(temperature)
91	INTEGER, PARAMETER :: jpr_rnf = 28 ! runoffs
92	INTEGER, PARAMETER :: jpr_cal = 29 ! calving
93	INTEGER, PARAMETER :: jpr_taum = 30 ! wind stress module
94	INTEGER, PARAMETER :: jpr_co2 = 31
95	INTEGER, PARAMETER :: jpr_topm = 32 ! topmeltn
96	INTEGER, PARAMETER :: jpr_botm = 33 ! botmeltn
97	INTEGER, PARAMETER :: jpr_sflx = 34 ! salt flux
98	INTEGER, PARAMETER :: jpr_toce = 35 ! ocean temperature
99	INTEGER, PARAMETER :: jpr_soce = 36 ! ocean salinity
100	INTEGER, PARAMETER :: jpr_ocx1 = 37 ! ocean current on grid 1
101	INTEGER, PARAMETER :: jpr_ocy1 = 38 !
102	INTEGER, PARAMETER :: jpr_ssh = 39 ! sea surface height
103	INTEGER, PARAMETER :: jpr_fice = 40 ! ice fraction
104	INTEGER, PARAMETER :: jpr_e3t1st = 41 ! first T level thickness
105	INTEGER, PARAMETER :: jpr_fraqsr = 42 ! fraction of solar net radiation absorbed in the first ocean level
106	INTEGER, PARAMETER :: jprcv = 42 ! total number of fields received
107
108	INTEGER, PARAMETER :: jps_fice = 1 ! ice fraction sent to the atmosphere
109	INTEGER, PARAMETER :: jps_toce = 2 ! ocean temperature
110	INTEGER, PARAMETER :: jps_tice = 3 ! ice temperature
111	INTEGER, PARAMETER :: jps_tmix = 4 ! mixed temperature (ocean+ice)
112	INTEGER, PARAMETER :: jps_albice = 5 ! ice albedo
113	INTEGER, PARAMETER :: jps_albmix = 6 ! mixed albedo
114	INTEGER, PARAMETER :: jps_hice = 7 ! ice thickness
115	INTEGER, PARAMETER :: jps_hsnw = 8 ! snow thickness
116	INTEGER, PARAMETER :: jps_ocx1 = 9 ! ocean current on grid 1
117	INTEGER, PARAMETER :: jps_ocy1 = 10 !
118	INTEGER, PARAMETER :: jps_ocz1 = 11 !
119	INTEGER, PARAMETER :: jps_ivx1 = 12 ! ice current on grid 1
120	INTEGER, PARAMETER :: jps_ivy1 = 13 !
121	INTEGER, PARAMETER :: jps_ivz1 = 14 !
122	INTEGER, PARAMETER :: jps_co2 = 15
123	INTEGER, PARAMETER :: jps_soce = 16 ! ocean salinity
124	INTEGER, PARAMETER :: jps_ssh = 17 ! sea surface height
125	INTEGER, PARAMETER :: jps_qsroce = 18 ! Qsr above the ocean
126	INTEGER, PARAMETER :: jps_qnsoce = 19 ! Qns above the ocean
127	INTEGER, PARAMETER :: jps_oemp = 20 ! ocean freshwater budget (evap - precip)
128	INTEGER, PARAMETER :: jps_sflx = 21 ! salt flux
129	INTEGER, PARAMETER :: jps_otx1 = 22 ! 2 atmosphere-ocean stress components on grid 1
130	INTEGER, PARAMETER :: jps_oty1 = 23 !
131	INTEGER, PARAMETER :: jps_rnf = 24 ! runoffs
132	INTEGER, PARAMETER :: jps_taum = 25 ! wind stress module
133	INTEGER, PARAMETER :: jps_fice2 = 26 ! ice fraction sent to OPA (by SAS when doing SAS-OPA coupling)
134	INTEGER, PARAMETER :: jps_e3t1st = 27 ! first level depth (vvl)
135	INTEGER, PARAMETER :: jps_fraqsr = 28 ! fraction of solar net radiation absorbed in the first ocean level
136	INTEGER, PARAMETER :: jpsnd = 28 ! total number of fields sended
137
138	! !! namelist namsbc_cpl
139	TYPE :: FLD_C
140	CHARACTER(len = 32) :: cldes ! desciption of the coupling strategy
141	CHARACTER(len = 32) :: clcat ! multiple ice categories strategy
142	CHARACTER(len = 32) :: clvref ! reference of vector ('spherical' or 'cartesian')
143	CHARACTER(len = 32) :: clvor ! orientation of vector fields ('eastward-northward' or 'local grid')
144	CHARACTER(len = 32) :: clvgrd ! grids on which is located the vector fields
145	END TYPE FLD_C
146	! Send to the atmosphere !
147	TYPE(FLD_C) :: sn_snd_temp, sn_snd_alb, sn_snd_thick, sn_snd_crt, sn_snd_co2
148	! Received from the atmosphere !
149	TYPE(FLD_C) :: sn_rcv_w10m, sn_rcv_taumod, sn_rcv_tau, sn_rcv_dqnsdt, sn_rcv_qsr, sn_rcv_qns, sn_rcv_emp, sn_rcv_rnf
150	TYPE(FLD_C) :: sn_rcv_cal, sn_rcv_iceflx, sn_rcv_co2
151	! Other namelist parameters !
152	INTEGER :: nn_cplmodel ! Maximum number of models to/from which NEMO is potentialy sending/receiving data
153	LOGICAL :: ln_usecplmask ! use a coupling mask file to merge data received from several models
154	! -> file cplmask.nc with the float variable called cplmask (jpi,jpj,nn_cplmodel)
155	TYPE :: DYNARR
156	REAL(wp), POINTER, DIMENSION(:,:,:) :: z3
157	END TYPE DYNARR
158
159	TYPE( DYNARR ), SAVE, DIMENSION(jprcv) :: frcv ! all fields recieved from the atmosphere
160
161	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: albedo_oce_mix ! ocean albedo sent to atmosphere (mix clear/overcast sky)
162
163	INTEGER , ALLOCATABLE, SAVE, DIMENSION( :) :: nrcvinfo ! OASIS info argument
164
165	!! Substitution
166	# include "domzgr_substitute.h90"
167	# include "vectopt_loop_substitute.h90"
168	!!----------------------------------------------------------------------
169	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
170	!! $Id$
171	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
172	!!----------------------------------------------------------------------
173
174	CONTAINS
175
176	INTEGER FUNCTION sbc_cpl_alloc()
177	!!----------------------------------------------------------------------
178	!! * FUNCTION sbc_cpl_alloc *
179	!!----------------------------------------------------------------------
180	INTEGER :: ierr(3)
181	!!----------------------------------------------------------------------
182	ierr(:) = 0
183	!
184	ALLOCATE( albedo_oce_mix(jpi,jpj), nrcvinfo(jprcv), STAT=ierr(1) )
185
186	#if ! defined key_lim3 && ! defined key_lim2 && ! defined key_cice
187	ALLOCATE( a_i(jpi,jpj,1) , STAT=ierr(2) ) ! used in sbcice_if.F90 (done here as there is no sbc_ice_if_init)
188	#endif
189	ALLOCATE( xcplmask(jpi,jpj,0:nn_cplmodel) , STAT=ierr(3) )
190	!
191	sbc_cpl_alloc = MAXVAL( ierr )
192	IF( lk_mpp ) CALL mpp_sum ( sbc_cpl_alloc )
193	IF( sbc_cpl_alloc > 0 ) CALL ctl_warn('sbc_cpl_alloc: allocation of arrays failed')
194	!
195	END FUNCTION sbc_cpl_alloc
196
197
198	SUBROUTINE sbc_cpl_init( k_ice )
199	!!----------------------------------------------------------------------
200	!! * ROUTINE sbc_cpl_init *
201	!!
202	!! ** Purpose : Initialisation of send and received information from
203	!! the atmospheric component
204	!!
205	!! ** Method : * Read namsbc_cpl namelist
206	!! * define the receive interface
207	!! * define the send interface
208	!! * initialise the OASIS coupler
209	!!----------------------------------------------------------------------
210	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
211	!!
212	INTEGER :: jn ! dummy loop index
213	INTEGER :: ios ! Local integer output status for namelist read
214	INTEGER :: inum
215	REAL(wp), POINTER, DIMENSION(:,:) :: zacs, zaos
216	!!
217	NAMELIST/namsbc_cpl/ sn_snd_temp, sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2, &
218	& sn_rcv_w10m, sn_rcv_taumod, sn_rcv_tau , sn_rcv_dqnsdt, sn_rcv_qsr, &
219	& sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf , sn_rcv_cal , sn_rcv_iceflx, &
220	& sn_rcv_co2 , nn_cplmodel , ln_usecplmask
221	!!---------------------------------------------------------------------
222	!
223	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_init')
224	!
225	CALL wrk_alloc( jpi,jpj, zacs, zaos )
226
227	! ================================ !
228	! Namelist informations !
229	! ================================ !
230
231	REWIND( numnam_ref ) ! Namelist namsbc_cpl in reference namelist : Variables for OASIS coupling
232	READ ( numnam_ref, namsbc_cpl, IOSTAT = ios, ERR = 901)
233	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in reference namelist', lwp )
234
235	REWIND( numnam_cfg ) ! Namelist namsbc_cpl in configuration namelist : Variables for OASIS coupling
236	READ ( numnam_cfg, namsbc_cpl, IOSTAT = ios, ERR = 902 )
237	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in configuration namelist', lwp )
238	IF(lwm) WRITE ( numond, namsbc_cpl )
239
240	IF(lwp) THEN ! control print
241	WRITE(numout,*)
242	WRITE(numout,*)'sbc_cpl_init : namsbc_cpl namelist '
243	WRITE(numout,*)'~~~~~~~~~~~~'
244	ENDIF
245	IF( lwp .AND. nn_components /= jp_iam_opa .AND. ln_cpl ) THEN ! control print
246	WRITE(numout,*)' received fields (mutiple ice categogies)'
247	WRITE(numout,*)' 10m wind module = ', TRIM(sn_rcv_w10m%cldes ), ' (', TRIM(sn_rcv_w10m%clcat ), ')'
248	WRITE(numout,*)' stress module = ', TRIM(sn_rcv_taumod%cldes), ' (', TRIM(sn_rcv_taumod%clcat), ')'
249	WRITE(numout,*)' surface stress = ', TRIM(sn_rcv_tau%cldes ), ' (', TRIM(sn_rcv_tau%clcat ), ')'
250	WRITE(numout,*)' - referential = ', sn_rcv_tau%clvref
251	WRITE(numout,*)' - orientation = ', sn_rcv_tau%clvor
252	WRITE(numout,*)' - mesh = ', sn_rcv_tau%clvgrd
253	WRITE(numout,*)' non-solar heat flux sensitivity = ', TRIM(sn_rcv_dqnsdt%cldes), ' (', TRIM(sn_rcv_dqnsdt%clcat), ')'
254	WRITE(numout,*)' solar heat flux = ', TRIM(sn_rcv_qsr%cldes ), ' (', TRIM(sn_rcv_qsr%clcat ), ')'
255	WRITE(numout,*)' non-solar heat flux = ', TRIM(sn_rcv_qns%cldes ), ' (', TRIM(sn_rcv_qns%clcat ), ')'
256	WRITE(numout,*)' freshwater budget = ', TRIM(sn_rcv_emp%cldes ), ' (', TRIM(sn_rcv_emp%clcat ), ')'
257	WRITE(numout,*)' runoffs = ', TRIM(sn_rcv_rnf%cldes ), ' (', TRIM(sn_rcv_rnf%clcat ), ')'
258	WRITE(numout,*)' calving = ', TRIM(sn_rcv_cal%cldes ), ' (', TRIM(sn_rcv_cal%clcat ), ')'
259	WRITE(numout,*)' sea ice heat fluxes = ', TRIM(sn_rcv_iceflx%cldes), ' (', TRIM(sn_rcv_iceflx%clcat), ')'
260	WRITE(numout,*)' atm co2 = ', TRIM(sn_rcv_co2%cldes ), ' (', TRIM(sn_rcv_co2%clcat ), ')'
261	WRITE(numout,*)' sent fields (multiple ice categories)'
262	WRITE(numout,*)' surface temperature = ', TRIM(sn_snd_temp%cldes ), ' (', TRIM(sn_snd_temp%clcat ), ')'
263	WRITE(numout,*)' albedo = ', TRIM(sn_snd_alb%cldes ), ' (', TRIM(sn_snd_alb%clcat ), ')'
264	WRITE(numout,*)' ice/snow thickness = ', TRIM(sn_snd_thick%cldes ), ' (', TRIM(sn_snd_thick%clcat ), ')'
265	WRITE(numout,*)' surface current = ', TRIM(sn_snd_crt%cldes ), ' (', TRIM(sn_snd_crt%clcat ), ')'
266	WRITE(numout,*)' - referential = ', sn_snd_crt%clvref
267	WRITE(numout,*)' - orientation = ', sn_snd_crt%clvor
268	WRITE(numout,*)' - mesh = ', sn_snd_crt%clvgrd
269	WRITE(numout,*)' oce co2 flux = ', TRIM(sn_snd_co2%cldes ), ' (', TRIM(sn_snd_co2%clcat ), ')'
270	WRITE(numout,*)' nn_cplmodel = ', nn_cplmodel
271	WRITE(numout,*)' ln_usecplmask = ', ln_usecplmask
272	ENDIF
273
274	! ! allocate sbccpl arrays
275	IF( sbc_cpl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_cpl_alloc : unable to allocate arrays' )
276
277	! ================================ !
278	! Define the receive interface !
279	! ================================ !
280	nrcvinfo(:) = OASIS_idle ! needed by nrcvinfo(jpr_otx1) if we do not receive ocean stress
281
282	! for each field: define the OASIS name (srcv(:)%clname)
283	! define receive or not from the namelist parameters (srcv(:)%laction)
284	! define the north fold type of lbc (srcv(:)%nsgn)
285
286	! default definitions of srcv
287	srcv(:)%laction = .FALSE. ; srcv(:)%clgrid = 'T' ; srcv(:)%nsgn = 1. ; srcv(:)%nct = 1
288
289	! ! ------------------------- !
290	! ! ice and ocean wind stress !
291	! ! ------------------------- !
292	! ! Name
293	srcv(jpr_otx1)%clname = 'O_OTaux1' ! 1st ocean component on grid ONE (T or U)
294	srcv(jpr_oty1)%clname = 'O_OTauy1' ! 2nd - - - -
295	srcv(jpr_otz1)%clname = 'O_OTauz1' ! 3rd - - - -
296	srcv(jpr_otx2)%clname = 'O_OTaux2' ! 1st ocean component on grid TWO (V)
297	srcv(jpr_oty2)%clname = 'O_OTauy2' ! 2nd - - - -
298	srcv(jpr_otz2)%clname = 'O_OTauz2' ! 3rd - - - -
299	!
300	srcv(jpr_itx1)%clname = 'O_ITaux1' ! 1st ice component on grid ONE (T, F, I or U)
301	srcv(jpr_ity1)%clname = 'O_ITauy1' ! 2nd - - - -
302	srcv(jpr_itz1)%clname = 'O_ITauz1' ! 3rd - - - -
303	srcv(jpr_itx2)%clname = 'O_ITaux2' ! 1st ice component on grid TWO (V)
304	srcv(jpr_ity2)%clname = 'O_ITauy2' ! 2nd - - - -
305	srcv(jpr_itz2)%clname = 'O_ITauz2' ! 3rd - - - -
306	!
307	! Vectors: change of sign at north fold ONLY if on the local grid
308	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) srcv(jpr_otx1:jpr_itz2)%nsgn = -1.
309
310	! ! Set grid and action
311	SELECT CASE( TRIM( sn_rcv_tau%clvgrd ) ) ! 'T', 'U,V', 'U,V,I', 'U,V,F', 'T,I', 'T,F', or 'T,U,V'
312	CASE( 'T' )
313	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
314	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
315	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
316	CASE( 'U,V' )
317	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
318	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
319	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
320	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
321	srcv(jpr_otx1:jpr_itz2)%laction = .TRUE. ! receive oce and ice components on both grid 1 & 2
322	CASE( 'U,V,T' )
323	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
324	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
325	srcv(jpr_itx1:jpr_itz1)%clgrid = 'T' ! ice components given at T-point
326	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
327	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
328	CASE( 'U,V,I' )
329	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
330	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
331	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
332	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
333	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
334	CASE( 'U,V,F' )
335	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
336	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
337	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
338	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
339	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
340	CASE( 'T,I' )
341	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
342	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
343	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
344	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
345	CASE( 'T,F' )
346	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
347	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
348	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
349	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
350	CASE( 'T,U,V' )
351	srcv(jpr_otx1:jpr_otz1)%clgrid = 'T' ! oce components given at T-point
352	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
353	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
354	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1 only
355	srcv(jpr_itx1:jpr_itz2)%laction = .TRUE. ! receive ice components on grid 1 & 2
356	CASE default
357	CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_tau%clvgrd' )
358	END SELECT
359	!
360	IF( TRIM( sn_rcv_tau%clvref ) == 'spherical' ) & ! spherical: 3rd component not received
361	& srcv( (/jpr_otz1, jpr_otz2, jpr_itz1, jpr_itz2/) )%laction = .FALSE.
362	!
363	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) THEN ! already on local grid -> no need of the second grid
364	srcv(jpr_otx2:jpr_otz2)%laction = .FALSE.
365	srcv(jpr_itx2:jpr_itz2)%laction = .FALSE.
366	srcv(jpr_oty1)%clgrid = srcv(jpr_oty2)%clgrid ! not needed but cleaner...
367	srcv(jpr_ity1)%clgrid = srcv(jpr_ity2)%clgrid ! not needed but cleaner...
368	ENDIF
369	!
370	IF( TRIM( sn_rcv_tau%cldes ) /= 'oce and ice' ) THEN ! 'oce and ice' case ocean stress on ocean mesh used
371	srcv(jpr_itx1:jpr_itz2)%laction = .FALSE. ! ice components not received
372	srcv(jpr_itx1)%clgrid = 'U' ! ocean stress used after its transformation
373	srcv(jpr_ity1)%clgrid = 'V' ! i.e. it is always at U- & V-points for i- & j-comp. resp.
374	ENDIF
375
376	! ! ------------------------- !
377	! ! freshwater budget ! E-P
378	! ! ------------------------- !
379	! we suppose that atmosphere modele do not make the difference between precipiration (liquide or solid)
380	! over ice of free ocean within the same atmospheric cell.cd
381	srcv(jpr_rain)%clname = 'OTotRain' ! Rain = liquid precipitation
382	srcv(jpr_snow)%clname = 'OTotSnow' ! Snow = solid precipitation
383	srcv(jpr_tevp)%clname = 'OTotEvap' ! total evaporation (over oce + ice sublimation)
384	srcv(jpr_ievp)%clname = 'OIceEvap' ! evaporation over ice = sublimation
385	srcv(jpr_sbpr)%clname = 'OSubMPre' ! sublimation - liquid precipitation - solid precipitation
386	srcv(jpr_semp)%clname = 'OISubMSn' ! ice solid water budget = sublimation - solid precipitation
387	srcv(jpr_oemp)%clname = 'OOEvaMPr' ! ocean water budget = ocean Evap - ocean precip
388	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
389	CASE( 'none' ) ! nothing to do
390	CASE( 'oce only' ) ; srcv( jpr_oemp )%laction = .TRUE.
391	CASE( 'conservative' )
392	srcv( (/jpr_rain, jpr_snow, jpr_ievp, jpr_tevp/) )%laction = .TRUE.
393	IF ( k_ice <= 1 ) srcv(jpr_ievp)%laction = .FALSE.
394	CASE( 'oce and ice' ) ; srcv( (/jpr_ievp, jpr_sbpr, jpr_semp, jpr_oemp/) )%laction = .TRUE.
395	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_emp%cldes' )
396	END SELECT
397
398	! ! ------------------------- !
399	! ! Runoffs & Calving !
400	! ! ------------------------- !
401	srcv(jpr_rnf )%clname = 'O_Runoff' ; IF( TRIM( sn_rcv_rnf%cldes ) == 'coupled' ) srcv(jpr_rnf)%laction = .TRUE.
402	! This isn't right - really just want ln_rnf_emp changed
403	! IF( TRIM( sn_rcv_rnf%cldes ) == 'climato' ) THEN ; ln_rnf = .TRUE.
404	! ELSE ; ln_rnf = .FALSE.
405	! ENDIF
406	srcv(jpr_cal )%clname = 'OCalving' ; IF( TRIM( sn_rcv_cal%cldes ) == 'coupled' ) srcv(jpr_cal)%laction = .TRUE.
407
408	! ! ------------------------- !
409	! ! non solar radiation ! Qns
410	! ! ------------------------- !
411	srcv(jpr_qnsoce)%clname = 'O_QnsOce'
412	srcv(jpr_qnsice)%clname = 'O_QnsIce'
413	srcv(jpr_qnsmix)%clname = 'O_QnsMix'
414	SELECT CASE( TRIM( sn_rcv_qns%cldes ) )
415	CASE( 'none' ) ! nothing to do
416	CASE( 'oce only' ) ; srcv( jpr_qnsoce )%laction = .TRUE.
417	CASE( 'conservative' ) ; srcv( (/jpr_qnsice, jpr_qnsmix/) )%laction = .TRUE.
418	CASE( 'oce and ice' ) ; srcv( (/jpr_qnsice, jpr_qnsoce/) )%laction = .TRUE.
419	CASE( 'mixed oce-ice' ) ; srcv( jpr_qnsmix )%laction = .TRUE.
420	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qns%cldes' )
421	END SELECT
422	IF( TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' .AND. jpl > 1 ) &
423	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qns%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
424	! ! ------------------------- !
425	! ! solar radiation ! Qsr
426	! ! ------------------------- !
427	srcv(jpr_qsroce)%clname = 'O_QsrOce'
428	srcv(jpr_qsrice)%clname = 'O_QsrIce'
429	srcv(jpr_qsrmix)%clname = 'O_QsrMix'
430	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) )
431	CASE( 'none' ) ! nothing to do
432	CASE( 'oce only' ) ; srcv( jpr_qsroce )%laction = .TRUE.
433	CASE( 'conservative' ) ; srcv( (/jpr_qsrice, jpr_qsrmix/) )%laction = .TRUE.
434	CASE( 'oce and ice' ) ; srcv( (/jpr_qsrice, jpr_qsroce/) )%laction = .TRUE.
435	CASE( 'mixed oce-ice' ) ; srcv( jpr_qsrmix )%laction = .TRUE.
436	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qsr%cldes' )
437	END SELECT
438	IF( TRIM( sn_rcv_qsr%cldes ) == 'mixed oce-ice' .AND. jpl > 1 ) &
439	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qsr%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
440	! ! ------------------------- !
441	! ! non solar sensitivity ! d(Qns)/d(T)
442	! ! ------------------------- !
443	srcv(jpr_dqnsdt)%clname = 'O_dQnsdT'
444	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'coupled' ) srcv(jpr_dqnsdt)%laction = .TRUE.
445	!
446	! non solar sensitivity mandatory for LIM ice model
447	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. k_ice /= 0 .AND. k_ice /= 4 .AND. nn_components /= jp_iam_sas ) &
448	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_dqnsdt%cldes must be coupled in namsbc_cpl namelist' )
449	! non solar sensitivity mandatory for mixed oce-ice solar radiation coupling technique
450	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' ) &
451	CALL ctl_stop( 'sbc_cpl_init: namsbc_cpl namelist mismatch between sn_rcv_qns%cldes and sn_rcv_dqnsdt%cldes' )
452	! ! ------------------------- !
453	! ! 10m wind module !
454	! ! ------------------------- !
455	srcv(jpr_w10m)%clname = 'O_Wind10' ; IF( TRIM(sn_rcv_w10m%cldes ) == 'coupled' ) srcv(jpr_w10m)%laction = .TRUE.
456	!
457	! ! ------------------------- !
458	! ! wind stress module !
459	! ! ------------------------- !
460	srcv(jpr_taum)%clname = 'O_TauMod' ; IF( TRIM(sn_rcv_taumod%cldes) == 'coupled' ) srcv(jpr_taum)%laction = .TRUE.
461	lhftau = srcv(jpr_taum)%laction
462
463	! ! ------------------------- !
464	! ! Atmospheric CO2 !
465	! ! ------------------------- !
466	srcv(jpr_co2 )%clname = 'O_AtmCO2' ; IF( TRIM(sn_rcv_co2%cldes ) == 'coupled' ) srcv(jpr_co2 )%laction = .TRUE.
467	! ! ------------------------- !
468	! ! topmelt and botmelt !
469	! ! ------------------------- !
470	srcv(jpr_topm )%clname = 'OTopMlt'
471	srcv(jpr_botm )%clname = 'OBotMlt'
472	IF( TRIM(sn_rcv_iceflx%cldes) == 'coupled' ) THEN
473	IF ( TRIM( sn_rcv_iceflx%clcat ) == 'yes' ) THEN
474	srcv(jpr_topm:jpr_botm)%nct = jpl
475	ELSE
476	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_iceflx%clcat should always be set to yes currently' )
477	ENDIF
478	srcv(jpr_topm:jpr_botm)%laction = .TRUE.
479	ENDIF
480	! ! ------------------------------- !
481	! ! OPA-SAS coupling - rcv by opa !
482	! ! ------------------------------- !
483	srcv(jpr_sflx)%clname = 'O_SFLX'
484	srcv(jpr_fice)%clname = 'RIceFrc'
485	!
486	IF( nn_components == jp_iam_opa ) THEN ! OPA coupled to SAS via OASIS: force received field by OPA (sent by SAS)
487	srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
488	srcv( (/jpr_qsroce, jpr_qnsoce, jpr_oemp, jpr_sflx, jpr_fice, jpr_otx1, jpr_oty1, jpr_taum/) )%laction = .TRUE.
489	srcv(jpr_otx1)%clgrid = 'U' ! oce components given at U-point
490	srcv(jpr_oty1)%clgrid = 'V' ! and V-point
491	! Vectors: change of sign at north fold ONLY if on the local grid
492	srcv( (/jpr_otx1,jpr_oty1/) )%nsgn = -1.
493	sn_rcv_tau%clvgrd = 'U,V'
494	sn_rcv_tau%clvor = 'local grid'
495	sn_rcv_tau%clvref = 'spherical'
496	sn_rcv_emp%cldes = 'oce only'
497	!
498	IF(lwp) THEN ! control print
499	WRITE(numout,*)
500	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
501	WRITE(numout,*)' OPA component '
502	WRITE(numout,*)
503	WRITE(numout,*)' received fields from SAS component '
504	WRITE(numout,*)' ice cover '
505	WRITE(numout,*)' oce only EMP '
506	WRITE(numout,*)' salt flux '
507	WRITE(numout,*)' mixed oce-ice solar flux '
508	WRITE(numout,*)' mixed oce-ice non solar flux '
509	WRITE(numout,*)' wind stress U,V on local grid and sperical coordinates '
510	WRITE(numout,*)' wind stress module'
511	WRITE(numout,*)
512	ENDIF
513	ENDIF
514	! ! -------------------------------- !
515	! ! OPA-SAS coupling - rcv by sas !
516	! ! -------------------------------- !
517	srcv(jpr_toce )%clname = 'I_SSTSST'
518	srcv(jpr_soce )%clname = 'I_SSSal'
519	srcv(jpr_ocx1 )%clname = 'I_OCurx1'
520	srcv(jpr_ocy1 )%clname = 'I_OCury1'
521	srcv(jpr_ssh )%clname = 'I_SSHght'
522	srcv(jpr_e3t1st)%clname = 'I_E3T1st'
523	srcv(jpr_fraqsr)%clname = 'I_FraQsr'
524	!
525	IF( nn_components == jp_iam_sas ) THEN
526	IF( .NOT. ln_cpl ) srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
527	srcv( (/jpr_toce, jpr_soce, jpr_ssh, jpr_e3t1st, jpr_fraqsr, jpr_ocx1, jpr_ocy1/) )%laction = .TRUE.
528	! Vectors: change of sign at north fold ONLY if on the local grid
529	srcv(jpr_ocx1:jpr_ocy1)%nsgn = -1.
530	! Change first letter to couple with atmosphere if already coupled with sea_ice
531	DO jn = 1, jprcv
532	IF ( srcv(jn)%clname(1:1) == "O" ) srcv(jn)%clname = "S"//srcv(jn)%clname(2:LEN(srcv(jn)%clname))
533	END DO
534	!
535	IF(lwp) THEN ! control print
536	WRITE(numout,*)
537	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
538	WRITE(numout,*)' SAS component '
539	WRITE(numout,*)
540	IF( .NOT. ln_cpl ) THEN
541	WRITE(numout,*)' received fields from OPA component '
542	ELSE
543	WRITE(numout,*)' Additional received fields from OPA component : '
544	ENDIF
545	WRITE(numout,*)' sea surface temperature (Celcius) '
546	WRITE(numout,*)' sea surface salinity '
547	WRITE(numout,*)' surface currents '
548	WRITE(numout,*)' sea surface height '
549	WRITE(numout,*)' thickness of first ocean T level '
550	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
551	WRITE(numout,*)
552	ENDIF
553	ENDIF
554
555	! =================================================== !
556	! Allocate all parts of frcv used for received fields !
557	! =================================================== !
558	DO jn = 1, jprcv
559	IF ( srcv(jn)%laction ) ALLOCATE( frcv(jn)%z3(jpi,jpj,srcv(jn)%nct) )
560	END DO
561	! Allocate taum part of frcv which is used even when not received as coupling field
562	IF ( .NOT. srcv(jpr_taum)%laction ) ALLOCATE( frcv(jpr_taum)%z3(jpi,jpj,srcv(jpr_taum)%nct) )
563	! Allocate w10m part of frcv which is used even when not received as coupling field
564	IF ( .NOT. srcv(jpr_w10m)%laction ) ALLOCATE( frcv(jpr_w10m)%z3(jpi,jpj,srcv(jpr_w10m)%nct) )
565	! Allocate jpr_otx1 part of frcv which is used even when not received as coupling field
566	IF ( .NOT. srcv(jpr_otx1)%laction ) ALLOCATE( frcv(jpr_otx1)%z3(jpi,jpj,srcv(jpr_otx1)%nct) )
567	IF ( .NOT. srcv(jpr_oty1)%laction ) ALLOCATE( frcv(jpr_oty1)%z3(jpi,jpj,srcv(jpr_oty1)%nct) )
568	! Allocate itx1 and ity1 as they are used in sbc_cpl_ice_tau even if srcv(jpr_itx1)%laction = .FALSE.
569	IF( k_ice /= 0 ) THEN
570	IF ( .NOT. srcv(jpr_itx1)%laction ) ALLOCATE( frcv(jpr_itx1)%z3(jpi,jpj,srcv(jpr_itx1)%nct) )
571	IF ( .NOT. srcv(jpr_ity1)%laction ) ALLOCATE( frcv(jpr_ity1)%z3(jpi,jpj,srcv(jpr_ity1)%nct) )
572	END IF
573
574	! ================================ !
575	! Define the send interface !
576	! ================================ !
577	! for each field: define the OASIS name (ssnd(:)%clname)
578	! define send or not from the namelist parameters (ssnd(:)%laction)
579	! define the north fold type of lbc (ssnd(:)%nsgn)
580
581	! default definitions of nsnd
582	ssnd(:)%laction = .FALSE. ; ssnd(:)%clgrid = 'T' ; ssnd(:)%nsgn = 1. ; ssnd(:)%nct = 1
583
584	! ! ------------------------- !
585	! ! Surface temperature !
586	! ! ------------------------- !
587	ssnd(jps_toce)%clname = 'O_SSTSST'
588	ssnd(jps_tice)%clname = 'O_TepIce'
589	ssnd(jps_tmix)%clname = 'O_TepMix'
590	SELECT CASE( TRIM( sn_snd_temp%cldes ) )
591	CASE( 'none' ) ! nothing to do
592	CASE( 'oce only' ) ; ssnd( jps_toce )%laction = .TRUE.
593	CASE( 'weighted oce and ice' )
594	ssnd( (/jps_toce, jps_tice/) )%laction = .TRUE.
595	IF ( TRIM( sn_snd_temp%clcat ) == 'yes' ) ssnd(jps_tice)%nct = jpl
596	CASE( 'mixed oce-ice' ) ; ssnd( jps_tmix )%laction = .TRUE.
597	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_temp%cldes' )
598	END SELECT
599
600	! ! ------------------------- !
601	! ! Albedo !
602	! ! ------------------------- !
603	ssnd(jps_albice)%clname = 'O_AlbIce'
604	ssnd(jps_albmix)%clname = 'O_AlbMix'
605	SELECT CASE( TRIM( sn_snd_alb%cldes ) )
606	CASE( 'none' ) ! nothing to do
607	CASE( 'weighted ice' ) ; ssnd(jps_albice)%laction = .TRUE.
608	CASE( 'mixed oce-ice' ) ; ssnd(jps_albmix)%laction = .TRUE.
609	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_alb%cldes' )
610	END SELECT
611	!
612	! Need to calculate oceanic albedo if
613	! 1. sending mixed oce-ice albedo or
614	! 2. receiving mixed oce-ice solar radiation
615	IF ( TRIM ( sn_snd_alb%cldes ) == 'mixed oce-ice' .OR. TRIM ( sn_rcv_qsr%cldes ) == 'mixed oce-ice' ) THEN
616	CALL albedo_oce( zaos, zacs )
617	! Due to lack of information on nebulosity : mean clear/overcast sky
618	albedo_oce_mix(:,:) = ( zacs(:,:) + zaos(:,:) ) * 0.5
619	ENDIF
620
621	! ! ------------------------- !
622	! ! Ice fraction & Thickness !
623	! ! ------------------------- !
624	ssnd(jps_fice)%clname = 'OIceFrc'
625	ssnd(jps_hice)%clname = 'OIceTck'
626	ssnd(jps_hsnw)%clname = 'OSnwTck'
627	IF( k_ice /= 0 ) THEN
628	ssnd(jps_fice)%laction = .TRUE. ! if ice treated in the ocean (even in climato case)
629	! Currently no namelist entry to determine sending of multi-category ice fraction so use the thickness entry for now
630	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_fice)%nct = jpl
631	ENDIF
632
633	SELECT CASE ( TRIM( sn_snd_thick%cldes ) )
634	CASE( 'none' ) ! nothing to do
635	CASE( 'ice and snow' )
636	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
637	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) THEN
638	ssnd(jps_hice:jps_hsnw)%nct = jpl
639	ELSE
640	IF ( jpl > 1 ) THEN
641	CALL ctl_stop( 'sbc_cpl_init: use weighted ice and snow option for sn_snd_thick%cldes if not exchanging category fields' )
642	ENDIF
643	ENDIF
644	CASE ( 'weighted ice and snow' )
645	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
646	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice:jps_hsnw)%nct = jpl
647	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_thick%cldes' )
648	END SELECT
649
650	! ! ------------------------- !
651	! ! Surface current !
652	! ! ------------------------- !
653	! ocean currents ! ice velocities
654	ssnd(jps_ocx1)%clname = 'O_OCurx1' ; ssnd(jps_ivx1)%clname = 'O_IVelx1'
655	ssnd(jps_ocy1)%clname = 'O_OCury1' ; ssnd(jps_ivy1)%clname = 'O_IVely1'
656	ssnd(jps_ocz1)%clname = 'O_OCurz1' ; ssnd(jps_ivz1)%clname = 'O_IVelz1'
657	!
658	ssnd(jps_ocx1:jps_ivz1)%nsgn = -1. ! vectors: change of the sign at the north fold
659
660	IF( sn_snd_crt%clvgrd == 'U,V' ) THEN
661	ssnd(jps_ocx1)%clgrid = 'U' ; ssnd(jps_ocy1)%clgrid = 'V'
662	ELSE IF( sn_snd_crt%clvgrd /= 'T' ) THEN
663	CALL ctl_stop( 'sn_snd_crt%clvgrd must be equal to T' )
664	ssnd(jps_ocx1:jps_ivz1)%clgrid = 'T' ! all oce and ice components on the same unique grid
665	ENDIF
666	ssnd(jps_ocx1:jps_ivz1)%laction = .TRUE. ! default: all are send
667	IF( TRIM( sn_snd_crt%clvref ) == 'spherical' ) ssnd( (/jps_ocz1, jps_ivz1/) )%laction = .FALSE.
668	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) ssnd(jps_ocx1:jps_ivz1)%nsgn = 1.
669	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
670	CASE( 'none' ) ; ssnd(jps_ocx1:jps_ivz1)%laction = .FALSE.
671	CASE( 'oce only' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
672	CASE( 'weighted oce and ice' ) ! nothing to do
673	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
674	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crt%cldes' )
675	END SELECT
676
677	! ! ------------------------- !
678	! ! CO2 flux !
679	! ! ------------------------- !
680	ssnd(jps_co2)%clname = 'O_CO2FLX' ; IF( TRIM(sn_snd_co2%cldes) == 'coupled' ) ssnd(jps_co2 )%laction = .TRUE.
681
682	! ! ------------------------------- !
683	! ! OPA-SAS coupling - snd by opa !
684	! ! ------------------------------- !
685	ssnd(jps_ssh )%clname = 'O_SSHght'
686	ssnd(jps_soce )%clname = 'O_SSSal'
687	ssnd(jps_e3t1st)%clname = 'O_E3T1st'
688	ssnd(jps_fraqsr)%clname = 'O_FraQsr'
689	!
690	IF( nn_components == jp_iam_opa ) THEN
691	ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
692	ssnd( (/jps_toce, jps_soce, jps_ssh, jps_e3t1st, jps_fraqsr, jps_ocx1, jps_ocy1/) )%laction = .TRUE.
693	! vector definition: not used but cleaner...
694	ssnd(jps_ocx1)%clgrid = 'U' ! oce components given at U-point
695	ssnd(jps_ocy1)%clgrid = 'V' ! and V-point
696	sn_snd_crt%clvgrd = 'U,V'
697	sn_snd_crt%clvor = 'local grid'
698	sn_snd_crt%clvref = 'spherical'
699	!
700	IF(lwp) THEN ! control print
701	WRITE(numout,*)
702	WRITE(numout,*)' sent fields to SAS component '
703	WRITE(numout,*)' sea surface temperature (T before, Celcius) '
704	WRITE(numout,*)' sea surface salinity '
705	WRITE(numout,*)' surface currents U,V on local grid and spherical coordinates'
706	WRITE(numout,*)' sea surface height '
707	WRITE(numout,*)' thickness of first ocean T level '
708	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
709	WRITE(numout,*)
710	ENDIF
711	ENDIF
712	! ! ------------------------------- !
713	! ! OPA-SAS coupling - snd by sas !
714	! ! ------------------------------- !
715	ssnd(jps_sflx )%clname = 'I_SFLX'
716	ssnd(jps_fice2 )%clname = 'IIceFrc'
717	ssnd(jps_qsroce)%clname = 'I_QsrOce'
718	ssnd(jps_qnsoce)%clname = 'I_QnsOce'
719	ssnd(jps_oemp )%clname = 'IOEvaMPr'
720	ssnd(jps_otx1 )%clname = 'I_OTaux1'
721	ssnd(jps_oty1 )%clname = 'I_OTauy1'
722	ssnd(jps_rnf )%clname = 'I_Runoff'
723	ssnd(jps_taum )%clname = 'I_TauMod'
724	!
725	IF( nn_components == jp_iam_sas ) THEN
726	IF( .NOT. ln_cpl ) ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
727	ssnd( (/jps_qsroce, jps_qnsoce, jps_oemp, jps_fice2, jps_sflx, jps_otx1, jps_oty1, jps_taum/) )%laction = .TRUE.
728	!
729	! Change first letter to couple with atmosphere if already coupled with sea_ice
730	! this is nedeed as each variable name used in the namcouple must be unique:
731	! for example O_SSTSST sent by OPA to SAS and therefore S_SSTSST sent by SAS to the Atmosphere
732	DO jn = 1, jpsnd
733	IF ( ssnd(jn)%clname(1:1) == "O" ) ssnd(jn)%clname = "S"//ssnd(jn)%clname(2:LEN(ssnd(jn)%clname))
734	END DO
735	!
736	IF(lwp) THEN ! control print
737	WRITE(numout,*)
738	IF( .NOT. ln_cpl ) THEN
739	WRITE(numout,*)' sent fields to OPA component '
740	ELSE
741	WRITE(numout,*)' Additional sent fields to OPA component : '
742	ENDIF
743	WRITE(numout,*)' ice cover '
744	WRITE(numout,*)' oce only EMP '
745	WRITE(numout,*)' salt flux '
746	WRITE(numout,*)' mixed oce-ice solar flux '
747	WRITE(numout,*)' mixed oce-ice non solar flux '
748	WRITE(numout,*)' wind stress U,V components'
749	WRITE(numout,*)' wind stress module'
750	ENDIF
751	ENDIF
752
753	!
754	! ================================ !
755	! initialisation of the coupler !
756	! ================================ !
757
758	CALL cpl_define(jprcv, jpsnd, nn_cplmodel)
759	IF (ln_usecplmask) THEN
760	xcplmask(:,:,:) = 0.
761	CALL iom_open( 'cplmask', inum )
762	CALL iom_get( inum, jpdom_unknown, 'cplmask', xcplmask(1:nlci,1:nlcj,1:nn_cplmodel), &
763	& kstart = (/ mig(1),mjg(1),1 /), kcount = (/ nlci,nlcj,nn_cplmodel /) )
764	CALL iom_close( inum )
765	ELSE
766	xcplmask(:,:,:) = 1.
767	ENDIF
768	xcplmask(:,:,0) = 1. - SUM( xcplmask(:,:,1:nn_cplmodel), dim = 3 )
769	!
770	IF( ln_dm2dc .AND. &
771	& ( cpl_freq( 'O_QsrOce' ) + cpl_freq( 'O_QsrMix' ) + cpl_freq( 'S_QsrOce' ) + cpl_freq( 'S_QsrMix' ) ) /= 86400 ) &
772	& CALL ctl_stop( 'sbc_cpl_init: diurnal cycle reconstruction (ln_dm2dc) needs daily couping for solar radiation' )
773
774	CALL wrk_dealloc( jpi,jpj, zacs, zaos )
775	!
776	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_init')
777	!
778	END SUBROUTINE sbc_cpl_init
779
780
781	SUBROUTINE sbc_cpl_rcv( kt, k_fsbc, k_ice )
782	!!----------------------------------------------------------------------
783	!! * ROUTINE sbc_cpl_rcv *
784	!!
785	!! ** Purpose : provide the stress over the ocean and, if no sea-ice,
786	!! provide the ocean heat and freshwater fluxes.
787	!!
788	!! ** Method : - Receive all the atmospheric fields (stored in frcv array). called at each time step.
789	!! OASIS controls if there is something do receive or not. nrcvinfo contains the info
790	!! to know if the field was really received or not
791	!!
792	!! --> If ocean stress was really received:
793	!!
794	!! - transform the received ocean stress vector from the received
795	!! referential and grid into an atmosphere-ocean stress in
796	!! the (i,j) ocean referencial and at the ocean velocity point.
797	!! The received stress are :
798	!! - defined by 3 components (if cartesian coordinate)
799	!! or by 2 components (if spherical)
800	!! - oriented along geographical coordinate (if eastward-northward)
801	!! or along the local grid coordinate (if local grid)
802	!! - given at U- and V-point, resp. if received on 2 grids
803	!! or at T-point if received on 1 grid
804	!! Therefore and if necessary, they are successively
805	!! processed in order to obtain them
806	!! first as 2 components on the sphere
807	!! second as 2 components oriented along the local grid
808	!! third as 2 components on the U,V grid
809	!!
810	!! -->
811	!!
812	!! - In 'ocean only' case, non solar and solar ocean heat fluxes
813	!! and total ocean freshwater fluxes
814	!!
815	!! ** Method : receive all fields from the atmosphere and transform
816	!! them into ocean surface boundary condition fields
817	!!
818	!! ** Action : update utau, vtau ocean stress at U,V grid
819	!! taum wind stress module at T-point
820	!! wndm wind speed module at T-point over free ocean or leads in presence of sea-ice
821	!! qns non solar heat fluxes including emp heat content (ocean only case)
822	!! and the latent heat flux of solid precip. melting
823	!! qsr solar ocean heat fluxes (ocean only case)
824	!! emp upward mass flux [evap. - precip. (- runoffs) (- calving)] (ocean only case)
825	!!----------------------------------------------------------------------
826	INTEGER, INTENT(in) :: kt ! ocean model time step index
827	INTEGER, INTENT(in) :: k_fsbc ! frequency of sbc (-> ice model) computation
828	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
829
830	!!
831	LOGICAL :: llnewtx, llnewtau ! update wind stress components and module??
832	INTEGER :: ji, jj, jn ! dummy loop indices
833	INTEGER :: isec ! number of seconds since nit000 (assuming rdttra did not change since nit000)
834	REAL(wp) :: zcumulneg, zcumulpos ! temporary scalars
835	REAL(wp) :: zcoef ! temporary scalar
836	REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3
837	REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient
838	REAL(wp) :: zzx, zzy ! temporary variables
839	REAL(wp), POINTER, DIMENSION(:,:) :: ztx, zty, zmsk, zemp, zqns, zqsr
840	!!----------------------------------------------------------------------
841	!
842	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_rcv')
843	!
844	CALL wrk_alloc( jpi,jpj, ztx, zty, zmsk, zemp, zqns, zqsr )
845	!
846	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
847	!
848	! ! ======================================================= !
849	! ! Receive all the atmos. fields (including ice information)
850	! ! ======================================================= !
851	isec = ( kt - nit000 ) * NINT( rdttra(1) ) ! date of exchanges
852	DO jn = 1, jprcv ! received fields sent by the atmosphere
853	IF( srcv(jn)%laction ) CALL cpl_rcv( jn, isec, frcv(jn)%z3, xcplmask(:,:,1:nn_cplmodel), nrcvinfo(jn) )
854	END DO
855
856	! ! ========================= !
857	IF( srcv(jpr_otx1)%laction ) THEN ! ocean stress components !
858	! ! ========================= !
859	! define frcv(jpr_otx1)%z3(:,:,1) and frcv(jpr_oty1)%z3(:,:,1): stress at U/V point along model grid
860	! => need to be done only when we receive the field
861	IF( nrcvinfo(jpr_otx1) == OASIS_Rcv ) THEN
862	!
863	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
864	! ! (cartesian to spherical -> 3 to 2 components)
865	!
866	CALL geo2oce( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), frcv(jpr_otz1)%z3(:,:,1), &
867	& srcv(jpr_otx1)%clgrid, ztx, zty )
868	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
869	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
870	!
871	IF( srcv(jpr_otx2)%laction ) THEN
872	CALL geo2oce( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), frcv(jpr_otz2)%z3(:,:,1), &
873	& srcv(jpr_otx2)%clgrid, ztx, zty )
874	frcv(jpr_otx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
875	frcv(jpr_oty2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
876	ENDIF
877	!
878	ENDIF
879	!
880	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
881	! ! (geographical to local grid -> rotate the components)
882	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->i', ztx )
883	IF( srcv(jpr_otx2)%laction ) THEN
884	CALL rot_rep( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), srcv(jpr_otx2)%clgrid, 'en->j', zty )
885	ELSE
886	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->j', zty )
887	ENDIF
888	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
889	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 2nd grid
890	ENDIF
891	!
892	IF( srcv(jpr_otx1)%clgrid == 'T' ) THEN
893	DO jj = 2, jpjm1 ! T ==> (U,V)
894	DO ji = fs_2, fs_jpim1 ! vector opt.
895	frcv(jpr_otx1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_otx1)%z3(ji+1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1) )
896	frcv(jpr_oty1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_oty1)%z3(ji ,jj+1,1) + frcv(jpr_oty1)%z3(ji,jj,1) )
897	END DO
898	END DO
899	CALL lbc_lnk( frcv(jpr_otx1)%z3(:,:,1), 'U', -1. ) ; CALL lbc_lnk( frcv(jpr_oty1)%z3(:,:,1), 'V', -1. )
900	ENDIF
901	llnewtx = .TRUE.
902	ELSE
903	llnewtx = .FALSE.
904	ENDIF
905	! ! ========================= !
906	ELSE ! No dynamical coupling !
907	! ! ========================= !
908	frcv(jpr_otx1)%z3(:,:,1) = 0.e0 ! here simply set to zero
909	frcv(jpr_oty1)%z3(:,:,1) = 0.e0 ! an external read in a file can be added instead
910	llnewtx = .TRUE.
911	!
912	ENDIF
913	! ! ========================= !
914	! ! wind stress module ! (taum)
915	! ! ========================= !
916	!
917	IF( .NOT. srcv(jpr_taum)%laction ) THEN ! compute wind stress module from its components if not received
918	! => need to be done only when otx1 was changed
919	IF( llnewtx ) THEN
920	!CDIR NOVERRCHK
921	DO jj = 2, jpjm1
922	!CDIR NOVERRCHK
923	DO ji = fs_2, fs_jpim1 ! vect. opt.
924	zzx = frcv(jpr_otx1)%z3(ji-1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1)
925	zzy = frcv(jpr_oty1)%z3(ji ,jj-1,1) + frcv(jpr_oty1)%z3(ji,jj,1)
926	frcv(jpr_taum)%z3(ji,jj,1) = 0.5 * SQRT( zzx * zzx + zzy * zzy )
927	END DO
928	END DO
929	CALL lbc_lnk( frcv(jpr_taum)%z3(:,:,1), 'T', 1. )
930	llnewtau = .TRUE.
931	ELSE
932	llnewtau = .FALSE.
933	ENDIF
934	ELSE
935	llnewtau = nrcvinfo(jpr_taum) == OASIS_Rcv
936	! Stress module can be negative when received (interpolation problem)
937	IF( llnewtau ) THEN
938	frcv(jpr_taum)%z3(:,:,1) = MAX( 0._wp, frcv(jpr_taum)%z3(:,:,1) )
939	ENDIF
940	ENDIF
941	!
942	! ! ========================= !
943	! ! 10 m wind speed ! (wndm)
944	! ! ========================= !
945	!
946	IF( .NOT. srcv(jpr_w10m)%laction ) THEN ! compute wind spreed from wind stress module if not received
947	! => need to be done only when taumod was changed
948	IF( llnewtau ) THEN
949	zcoef = 1. / ( zrhoa * zcdrag )
950	!CDIR NOVERRCHK
951	DO jj = 1, jpj
952	!CDIR NOVERRCHK
953	DO ji = 1, jpi
954	frcv(jpr_w10m)%z3(ji,jj,1) = SQRT( frcv(jpr_taum)%z3(ji,jj,1) * zcoef )
955	END DO
956	END DO
957	ENDIF
958	ENDIF
959
960	! u(v)tau and taum will be modified by ice model
961	! -> need to be reset before each call of the ice/fsbc
962	IF( MOD( kt-1, k_fsbc ) == 0 ) THEN
963	!
964	IF( ln_mixcpl ) THEN
965	utau(:,:) = utau(:,:) * xcplmask(:,:,0) + frcv(jpr_otx1)%z3(:,:,1) * zmsk(:,:)
966	vtau(:,:) = vtau(:,:) * xcplmask(:,:,0) + frcv(jpr_oty1)%z3(:,:,1) * zmsk(:,:)
967	taum(:,:) = taum(:,:) * xcplmask(:,:,0) + frcv(jpr_taum)%z3(:,:,1) * zmsk(:,:)
968	wndm(:,:) = wndm(:,:) * xcplmask(:,:,0) + frcv(jpr_w10m)%z3(:,:,1) * zmsk(:,:)
969	ELSE
970	utau(:,:) = frcv(jpr_otx1)%z3(:,:,1)
971	vtau(:,:) = frcv(jpr_oty1)%z3(:,:,1)
972	taum(:,:) = frcv(jpr_taum)%z3(:,:,1)
973	wndm(:,:) = frcv(jpr_w10m)%z3(:,:,1)
974	ENDIF
975	CALL iom_put( "taum_oce", taum ) ! output wind stress module
976	!
977	ENDIF
978
979	#if defined key_cpl_carbon_cycle
980	! ! ================== !
981	! ! atmosph. CO2 (ppm) !
982	! ! ================== !
983	IF( srcv(jpr_co2)%laction ) atm_co2(:,:) = frcv(jpr_co2)%z3(:,:,1)
984	#endif
985
986	! Fields received by ice model when OASIS coupling
987	! (arrays no more filled at sbcssm stage)
988	! ! ================== !
989	! ! SSS !
990	! ! ================== !
991	IF( srcv(jpr_soce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
992	sss_m(:,:) = frcv(jpr_soce)%z3(:,:,1)
993	tsn(:,:,1,jp_sal) = sss_m(:,:)
994	ENDIF
995	!
996	! ! ================== !
997	! ! SST !
998	! ! ================== !
999	IF( srcv(jpr_toce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1000	sst_m(:,:) = frcv(jpr_toce)%z3(:,:,1)
1001	tsn(:,:,1,jp_tem) = sst_m(:,:) ! keep the received (potential or conservative) temperature in tsn
1002	IF( srcv(jpr_soce)%laction .AND. ln_useCT ) THEN ! make sure that sst_m is the potential temperature
1003	sst_m(:,:) = eos_pt_from_ct( sst_m(:,:), sss_m(:,:) )
1004	ENDIF
1005	ENDIF
1006	! ! ================== !
1007	! ! SSH !
1008	! ! ================== !
1009	IF( srcv(jpr_ssh )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1010	ssh_m(:,:) = frcv(jpr_ssh )%z3(:,:,1)
1011	sshn( :,:) = ssh_m(:,:)
1012	ENDIF
1013	! ! ================== !
1014	! ! surface currents !
1015	! ! ================== !
1016	IF( srcv(jpr_ocx1)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1017	ssu_m(:,:) = frcv(jpr_ocx1)%z3(:,:,1)
1018	ub (:,:,1) = ssu_m(:,:)
1019	ENDIF
1020	IF( srcv(jpr_ocy1)%laction ) THEN
1021	ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
1022	vb (:,:,1) = ssv_m(:,:)
1023	ENDIF
1024	! ! ======================== !
1025	! ! first T level thickness !
1026	! ! ======================== !
1027	IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1028	fse3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
1029	ENDIF
1030	! ! ================================ !
1031	! ! fraction of solar net radiation !
1032	! ! ================================ !
1033	IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1034	frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
1035	ENDIF
1036
1037	! ! ========================= !
1038	IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
1039	! ! ========================= !
1040	!
1041	! ! total freshwater fluxes over the ocean (emp)
1042	IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
1043	SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
1044	CASE( 'conservative' )
1045	zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
1046	CASE( 'oce only', 'oce and ice' )
1047	zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
1048	CASE default
1049	CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
1050	END SELECT
1051	ELSE
1052	zemp(:,:) = 0._wp
1053	ENDIF
1054	!
1055	! ! runoffs and calving (added in emp)
1056	IF( srcv(jpr_rnf)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_rnf)%z3(:,:,1)
1057	IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
1058
1059	IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
1060	ELSE ; emp(:,:) = zemp(:,:)
1061	ENDIF
1062	!
1063	! ! non solar heat flux over the ocean (qns)
1064	IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1065	ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1066	ELSE ; zqns(:,:) = 0._wp
1067	END IF
1068	! update qns over the free ocean with:
1069	IF( nn_components /= jp_iam_opa ) THEN
1070	zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
1071	IF( srcv(jpr_snow )%laction ) THEN
1072	zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * lfus ! energy for melting solid precipitation over the free ocean
1073	ENDIF
1074	ENDIF
1075	IF( ln_mixcpl ) THEN ; qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
1076	ELSE ; qns(:,:) = zqns(:,:)
1077	ENDIF
1078
1079	! ! solar flux over the ocean (qsr)
1080	IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
1081	ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
1082	ELSE ; zqsr(:,:) = 0._wp
1083	ENDIF
1084	IF( ln_dm2dc .AND. nn_components /= jp_iam_opa ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
1085	IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
1086	ELSE ; qsr(:,:) = zqsr(:,:)
1087	ENDIF
1088	!
1089	! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
1090	IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
1091	! Ice cover (received by opa in case of opa <-> sas coupling)
1092	IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
1093	!
1094
1095	ENDIF
1096	!
1097	CALL wrk_dealloc( jpi,jpj, ztx, zty, zmsk, zemp, zqns, zqsr )
1098	!
1099	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_rcv')
1100	!
1101	END SUBROUTINE sbc_cpl_rcv
1102
1103
1104	SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
1105	!!----------------------------------------------------------------------
1106	!! * ROUTINE sbc_cpl_ice_tau *
1107	!!
1108	!! ** Purpose : provide the stress over sea-ice in coupled mode
1109	!!
1110	!! ** Method : transform the received stress from the atmosphere into
1111	!! an atmosphere-ice stress in the (i,j) ocean referencial
1112	!! and at the velocity point of the sea-ice model (cp_ice_msh):
1113	!! 'C'-grid : i- (j-) components given at U- (V-) point
1114	!! 'I'-grid : B-grid lower-left corner: both components given at I-point
1115	!!
1116	!! The received stress are :
1117	!! - defined by 3 components (if cartesian coordinate)
1118	!! or by 2 components (if spherical)
1119	!! - oriented along geographical coordinate (if eastward-northward)
1120	!! or along the local grid coordinate (if local grid)
1121	!! - given at U- and V-point, resp. if received on 2 grids
1122	!! or at a same point (T or I) if received on 1 grid
1123	!! Therefore and if necessary, they are successively
1124	!! processed in order to obtain them
1125	!! first as 2 components on the sphere
1126	!! second as 2 components oriented along the local grid
1127	!! third as 2 components on the cp_ice_msh point
1128	!!
1129	!! Except in 'oce and ice' case, only one vector stress field
1130	!! is received. It has already been processed in sbc_cpl_rcv
1131	!! so that it is now defined as (i,j) components given at U-
1132	!! and V-points, respectively. Therefore, only the third
1133	!! transformation is done and only if the ice-grid is a 'I'-grid.
1134	!!
1135	!! ** Action : return ptau_i, ptau_j, the stress over the ice at cp_ice_msh point
1136	!!----------------------------------------------------------------------
1137	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
1138	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
1139	!!
1140	INTEGER :: ji, jj ! dummy loop indices
1141	INTEGER :: itx ! index of taux over ice
1142	REAL(wp), POINTER, DIMENSION(:,:) :: ztx, zty
1143	!!----------------------------------------------------------------------
1144	!
1145	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_ice_tau')
1146	!
1147	CALL wrk_alloc( jpi,jpj, ztx, zty )
1148
1149	IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
1150	ELSE ; itx = jpr_otx1
1151	ENDIF
1152
1153	! do something only if we just received the stress from atmosphere
1154	IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
1155
1156	! ! ======================= !
1157	IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
1158	! ! ======================= !
1159	!
1160	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1161	! ! (cartesian to spherical -> 3 to 2 components)
1162	CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
1163	& srcv(jpr_itx1)%clgrid, ztx, zty )
1164	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1165	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1166	!
1167	IF( srcv(jpr_itx2)%laction ) THEN
1168	CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
1169	& srcv(jpr_itx2)%clgrid, ztx, zty )
1170	frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1171	frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1172	ENDIF
1173	!
1174	ENDIF
1175	!
1176	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1177	! ! (geographical to local grid -> rotate the components)
1178	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
1179	IF( srcv(jpr_itx2)%laction ) THEN
1180	CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
1181	ELSE
1182	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
1183	ENDIF
1184	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1185	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
1186	ENDIF
1187	! ! ======================= !
1188	ELSE ! use ocean stress !
1189	! ! ======================= !
1190	frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
1191	frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
1192	!
1193	ENDIF
1194	! ! ======================= !
1195	! ! put on ice grid !
1196	! ! ======================= !
1197	!
1198	! j+1 j -----V---F
1199	! ice stress on ice velocity point (cp_ice_msh) ! \|
1200	! (C-grid ==>(U,V) or B-grid ==> I or F) j \| T U
1201	! \| \|
1202	! j j-1 -I-------\|
1203	! (for I) \| \|
1204	! i-1 i i
1205	! i i+1 (for I)
1206	SELECT CASE ( cp_ice_msh )
1207	!
1208	CASE( 'I' ) ! B-grid ==> I
1209	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1210	CASE( 'U' )
1211	DO jj = 2, jpjm1 ! (U,V) ==> I
1212	DO ji = 2, jpim1 ! NO vector opt.
1213	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji-1,jj ,1) + frcv(jpr_itx1)%z3(ji-1,jj-1,1) )
1214	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji ,jj-1,1) + frcv(jpr_ity1)%z3(ji-1,jj-1,1) )
1215	END DO
1216	END DO
1217	CASE( 'F' )
1218	DO jj = 2, jpjm1 ! F ==> I
1219	DO ji = 2, jpim1 ! NO vector opt.
1220	p_taui(ji,jj) = frcv(jpr_itx1)%z3(ji-1,jj-1,1)
1221	p_tauj(ji,jj) = frcv(jpr_ity1)%z3(ji-1,jj-1,1)
1222	END DO
1223	END DO
1224	CASE( 'T' )
1225	DO jj = 2, jpjm1 ! T ==> I
1226	DO ji = 2, jpim1 ! NO vector opt.
1227	p_taui(ji,jj) = 0.25 * ( frcv(jpr_itx1)%z3(ji,jj ,1) + frcv(jpr_itx1)%z3(ji-1,jj ,1) &
1228	& + frcv(jpr_itx1)%z3(ji,jj-1,1) + frcv(jpr_itx1)%z3(ji-1,jj-1,1) )
1229	p_tauj(ji,jj) = 0.25 * ( frcv(jpr_ity1)%z3(ji,jj ,1) + frcv(jpr_ity1)%z3(ji-1,jj ,1) &
1230	& + frcv(jpr_oty1)%z3(ji,jj-1,1) + frcv(jpr_ity1)%z3(ji-1,jj-1,1) )
1231	END DO
1232	END DO
1233	CASE( 'I' )
1234	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! I ==> I
1235	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1236	END SELECT
1237	IF( srcv(jpr_itx1)%clgrid /= 'I' ) THEN
1238	CALL lbc_lnk( p_taui, 'I', -1. ) ; CALL lbc_lnk( p_tauj, 'I', -1. )
1239	ENDIF
1240	!
1241	CASE( 'F' ) ! B-grid ==> F
1242	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1243	CASE( 'U' )
1244	DO jj = 2, jpjm1 ! (U,V) ==> F
1245	DO ji = fs_2, fs_jpim1 ! vector opt.
1246	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji,jj,1) + frcv(jpr_itx1)%z3(ji ,jj+1,1) )
1247	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji,jj,1) + frcv(jpr_ity1)%z3(ji+1,jj ,1) )
1248	END DO
1249	END DO
1250	CASE( 'I' )
1251	DO jj = 2, jpjm1 ! I ==> F
1252	DO ji = 2, jpim1 ! NO vector opt.
1253	p_taui(ji,jj) = frcv(jpr_itx1)%z3(ji+1,jj+1,1)
1254	p_tauj(ji,jj) = frcv(jpr_ity1)%z3(ji+1,jj+1,1)
1255	END DO
1256	END DO
1257	CASE( 'T' )
1258	DO jj = 2, jpjm1 ! T ==> F
1259	DO ji = 2, jpim1 ! NO vector opt.
1260	p_taui(ji,jj) = 0.25 * ( frcv(jpr_itx1)%z3(ji,jj ,1) + frcv(jpr_itx1)%z3(ji+1,jj ,1) &
1261	& + frcv(jpr_itx1)%z3(ji,jj+1,1) + frcv(jpr_itx1)%z3(ji+1,jj+1,1) )
1262	p_tauj(ji,jj) = 0.25 * ( frcv(jpr_ity1)%z3(ji,jj ,1) + frcv(jpr_ity1)%z3(ji+1,jj ,1) &
1263	& + frcv(jpr_ity1)%z3(ji,jj+1,1) + frcv(jpr_ity1)%z3(ji+1,jj+1,1) )
1264	END DO
1265	END DO
1266	CASE( 'F' )
1267	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! F ==> F
1268	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1269	END SELECT
1270	IF( srcv(jpr_itx1)%clgrid /= 'F' ) THEN
1271	CALL lbc_lnk( p_taui, 'F', -1. ) ; CALL lbc_lnk( p_tauj, 'F', -1. )
1272	ENDIF
1273	!
1274	CASE( 'C' ) ! C-grid ==> U,V
1275	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1276	CASE( 'U' )
1277	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
1278	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1279	CASE( 'F' )
1280	DO jj = 2, jpjm1 ! F ==> (U,V)
1281	DO ji = fs_2, fs_jpim1 ! vector opt.
1282	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji,jj,1) + frcv(jpr_itx1)%z3(ji ,jj-1,1) )
1283	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(jj,jj,1) + frcv(jpr_ity1)%z3(ji-1,jj ,1) )
1284	END DO
1285	END DO
1286	CASE( 'T' )
1287	DO jj = 2, jpjm1 ! T ==> (U,V)
1288	DO ji = fs_2, fs_jpim1 ! vector opt.
1289	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
1290	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
1291	END DO
1292	END DO
1293	CASE( 'I' )
1294	DO jj = 2, jpjm1 ! I ==> (U,V)
1295	DO ji = 2, jpim1 ! NO vector opt.
1296	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj+1,1) + frcv(jpr_itx1)%z3(ji+1,jj ,1) )
1297	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji+1,jj+1,1) + frcv(jpr_ity1)%z3(ji ,jj+1,1) )
1298	END DO
1299	END DO
1300	END SELECT
1301	IF( srcv(jpr_itx1)%clgrid /= 'U' ) THEN
1302	CALL lbc_lnk( p_taui, 'U', -1. ) ; CALL lbc_lnk( p_tauj, 'V', -1. )
1303	ENDIF
1304	END SELECT
1305
1306	ENDIF
1307	!
1308	CALL wrk_dealloc( jpi,jpj, ztx, zty )
1309	!
1310	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_ice_tau')
1311	!
1312	END SUBROUTINE sbc_cpl_ice_tau
1313
1314
1315	SUBROUTINE sbc_cpl_ice_flx( p_frld, palbi, psst, pist )
1316	!!----------------------------------------------------------------------
1317	!! * ROUTINE sbc_cpl_ice_flx *
1318	!!
1319	!! ** Purpose : provide the heat and freshwater fluxes of the
1320	!! ocean-ice system.
1321	!!
1322	!! ** Method : transform the fields received from the atmosphere into
1323	!! surface heat and fresh water boundary condition for the
1324	!! ice-ocean system. The following fields are provided:
1325	!! * total non solar, solar and freshwater fluxes (qns_tot,
1326	!! qsr_tot and emp_tot) (total means weighted ice-ocean flux)
1327	!! NB: emp_tot include runoffs and calving.
1328	!! * fluxes over ice (qns_ice, qsr_ice, emp_ice) where
1329	!! emp_ice = sublimation - solid precipitation as liquid
1330	!! precipitation are re-routed directly to the ocean and
1331	!! runoffs and calving directly enter the ocean.
1332	!! * solid precipitation (sprecip), used to add to qns_tot
1333	!! the heat lost associated to melting solid precipitation
1334	!! over the ocean fraction.
1335	!! ===>> CAUTION here this changes the net heat flux received from
1336	!! the atmosphere
1337	!!
1338	!! - the fluxes have been separated from the stress as
1339	!! (a) they are updated at each ice time step compare to
1340	!! an update at each coupled time step for the stress, and
1341	!! (b) the conservative computation of the fluxes over the
1342	!! sea-ice area requires the knowledge of the ice fraction
1343	!! after the ice advection and before the ice thermodynamics,
1344	!! so that the stress is updated before the ice dynamics
1345	!! while the fluxes are updated after it.
1346	!!
1347	!! ** Action : update at each nf_ice time step:
1348	!! qns_tot, qsr_tot non-solar and solar total heat fluxes
1349	!! qns_ice, qsr_ice non-solar and solar heat fluxes over the ice
1350	!! emp_tot total evaporation - precipitation(liquid and solid) (-runoff)(-calving)
1351	!! emp_ice ice sublimation - solid precipitation over the ice
1352	!! dqns_ice d(non-solar heat flux)/d(Temperature) over the ice
1353	!! sprecip solid precipitation over the ocean
1354	!!----------------------------------------------------------------------
1355	REAL(wp), INTENT(in ), DIMENSION(:,:) :: p_frld ! lead fraction [0 to 1]
1356	! optional arguments, used only in 'mixed oce-ice' case
1357	REAL(wp), INTENT(in ), DIMENSION(:,:,:), OPTIONAL :: palbi ! all skies ice albedo
1358	REAL(wp), INTENT(in ), DIMENSION(:,: ), OPTIONAL :: psst ! sea surface temperature [Celsius]
1359	REAL(wp), INTENT(in ), DIMENSION(:,:,:), OPTIONAL :: pist ! ice surface temperature [Kelvin]
1360	!
1361	INTEGER :: jl ! dummy loop index
1362	REAL(wp), POINTER, DIMENSION(:,: ) :: zcptn, ztmp, zicefr, zmsk
1363	REAL(wp), POINTER, DIMENSION(:,: ) :: zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot
1364	REAL(wp), POINTER, DIMENSION(:,:,:) :: zqns_ice, zqsr_ice, zdqns_ice
1365	REAL(wp), POINTER, DIMENSION(:,: ) :: zevap, zsnw, zqns_oce, zqprec_ice, zqemp_oce ! for LIM3
1366	!!----------------------------------------------------------------------
1367	!
1368	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_ice_flx')
1369	!
1370	CALL wrk_alloc( jpi,jpj, zcptn, ztmp, zicefr, zmsk, zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot )
1371	CALL wrk_alloc( jpi,jpj,jpl, zqns_ice, zqsr_ice, zdqns_ice )
1372
1373	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1374	zicefr(:,:) = 1.- p_frld(:,:)
1375	zcptn(:,:) = rcp * sst_m(:,:)
1376	!
1377	! ! ========================= !
1378	! ! freshwater budget ! (emp)
1379	! ! ========================= !
1380	!
1381	! ! total Precipitation - total Evaporation (emp_tot)
1382	! ! solid precipitation - sublimation (emp_ice)
1383	! ! solid Precipitation (sprecip)
1384	! ! liquid + solid Precipitation (tprecip)
1385	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
1386	CASE( 'conservative' ) ! received fields: jpr_rain, jpr_snow, jpr_ievp, jpr_tevp
1387	zsprecip(:,:) = frcv(jpr_snow)%z3(:,:,1) ! May need to ensure positive here
1388	ztprecip(:,:) = frcv(jpr_rain)%z3(:,:,1) + zsprecip(:,:) ! May need to ensure positive here
1389	zemp_tot(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ztprecip(:,:)
1390	zemp_ice(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_snow)%z3(:,:,1)
1391	CALL iom_put( 'rain' , frcv(jpr_rain)%z3(:,:,1) ) ! liquid precipitation
1392	IF( iom_use('hflx_rain_cea') ) &
1393	CALL iom_put( 'hflx_rain_cea', frcv(jpr_rain)%z3(:,:,1) * zcptn(:,:) ) ! heat flux from liq. precip.
1394	IF( iom_use('evap_ao_cea') .OR. iom_use('hflx_evap_cea') ) &
1395	ztmp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:)
1396	IF( iom_use('evap_ao_cea' ) ) &
1397	CALL iom_put( 'evap_ao_cea' , ztmp ) ! ice-free oce evap (cell average)
1398	IF( iom_use('hflx_evap_cea') ) &
1399	CALL iom_put( 'hflx_evap_cea', ztmp(:,:) * zcptn(:,:) ) ! heat flux from from evap (cell average)
1400	CASE( 'oce and ice' ) ! received fields: jpr_sbpr, jpr_semp, jpr_oemp, jpr_ievp
1401	zemp_tot(:,:) = p_frld(:,:) * frcv(jpr_oemp)%z3(:,:,1) + zicefr(:,:) * frcv(jpr_sbpr)%z3(:,:,1)
1402	zemp_ice(:,:) = frcv(jpr_semp)%z3(:,:,1)
1403	zsprecip(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_semp)%z3(:,:,1)
1404	ztprecip(:,:) = frcv(jpr_semp)%z3(:,:,1) - frcv(jpr_sbpr)%z3(:,:,1) + zsprecip(:,:)
1405	END SELECT
1406
1407	IF( iom_use('subl_ai_cea') ) &
1408	CALL iom_put( 'subl_ai_cea', frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:) ) ! Sublimation over sea-ice (cell average)
1409	!
1410	! ! runoffs and calving (put in emp_tot)
1411	IF( srcv(jpr_rnf)%laction ) THEN
1412	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_rnf)%z3(:,:,1)
1413	CALL iom_put( 'runoffs' , frcv(jpr_rnf)%z3(:,:,1) ) ! rivers
1414	IF( iom_use('hflx_rnf_cea') ) &
1415	CALL iom_put( 'hflx_rnf_cea' , frcv(jpr_rnf)%z3(:,:,1) * zcptn(:,:) ) ! heat flux from rivers
1416	ENDIF
1417	IF( srcv(jpr_cal)%laction ) THEN
1418	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1419	CALL iom_put( 'calving', frcv(jpr_cal)%z3(:,:,1) )
1420	ENDIF
1421
1422	IF( ln_mixcpl ) THEN
1423	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1424	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1425	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1426	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1427	ELSE
1428	emp_tot(:,:) = zemp_tot(:,:)
1429	emp_ice(:,:) = zemp_ice(:,:)
1430	sprecip(:,:) = zsprecip(:,:)
1431	tprecip(:,:) = ztprecip(:,:)
1432	ENDIF
1433
1434	CALL iom_put( 'snowpre' , sprecip ) ! Snow
1435	IF( iom_use('snow_ao_cea') ) &
1436	CALL iom_put( 'snow_ao_cea', sprecip(:,:) * p_frld(:,:) ) ! Snow over ice-free ocean (cell average)
1437	IF( iom_use('snow_ai_cea') ) &
1438	CALL iom_put( 'snow_ai_cea', sprecip(:,:) * zicefr(:,:) ) ! Snow over sea-ice (cell average)
1439
1440	! ! ========================= !
1441	SELECT CASE( TRIM( sn_rcv_qns%cldes ) ) ! non solar heat fluxes ! (qns)
1442	! ! ========================= !
1443	CASE( 'oce only' ) ! the required field is directly provided
1444	zqns_tot(:,: ) = frcv(jpr_qnsoce)%z3(:,:,1)
1445	CASE( 'conservative' ) ! the required fields are directly provided
1446	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1447	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1448	zqns_ice(:,:,1:jpl) = frcv(jpr_qnsice)%z3(:,:,1:jpl)
1449	ELSE
1450	! Set all category values equal for the moment
1451	DO jl=1,jpl
1452	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1453	ENDDO
1454	ENDIF
1455	CASE( 'oce and ice' ) ! the total flux is computed from ocean and ice fluxes
1456	zqns_tot(:,: ) = p_frld(:,:) * frcv(jpr_qnsoce)%z3(:,:,1)
1457	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1458	DO jl=1,jpl
1459	zqns_tot(:,: ) = zqns_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qnsice)%z3(:,:,jl)
1460	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,jl)
1461	ENDDO
1462	ELSE
1463	qns_tot(:,: ) = qns_tot(:,:) + zicefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1464	DO jl=1,jpl
1465	zqns_tot(:,: ) = zqns_tot(:,:) + zicefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1466	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1467	ENDDO
1468	ENDIF
1469	CASE( 'mixed oce-ice' ) ! the ice flux is cumputed from the total flux, the SST and ice informations
1470	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1471	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1472	zqns_ice(:,:,1) = frcv(jpr_qnsmix)%z3(:,:,1) &
1473	& + frcv(jpr_dqnsdt)%z3(:,:,1) * ( pist(:,:,1) - ( (rt0 + psst(:,: ) ) * p_frld(:,:) &
1474	& + pist(:,:,1) * zicefr(:,:) ) )
1475	END SELECT
1476	!!gm
1477	!! currently it is taken into account in leads budget but not in the zqns_tot, and thus not in
1478	!! the flux that enter the ocean....
1479	!! moreover 1 - it is not diagnose anywhere....
1480	!! 2 - it is unclear for me whether this heat lost is taken into account in the atmosphere or not...
1481	!!
1482	!! similar job should be done for snow and precipitation temperature
1483	!
1484	IF( srcv(jpr_cal)%laction ) THEN ! Iceberg melting
1485	ztmp(:,:) = frcv(jpr_cal)%z3(:,:,1) * lfus ! add the latent heat of iceberg melting
1486	zqns_tot(:,:) = zqns_tot(:,:) - ztmp(:,:)
1487	IF( iom_use('hflx_cal_cea') ) &
1488	CALL iom_put( 'hflx_cal_cea', ztmp + frcv(jpr_cal)%z3(:,:,1) * zcptn(:,:) ) ! heat flux from calving
1489	ENDIF
1490
1491	ztmp(:,:) = p_frld(:,:) * zsprecip(:,:) * lfus
1492	IF( iom_use('hflx_snow_cea') ) CALL iom_put( 'hflx_snow_cea', ztmp + sprecip(:,:) * zcptn(:,:) ) ! heat flux from snow (cell average)
1493
1494	#if defined key_lim3
1495	CALL wrk_alloc( jpi,jpj, zevap, zsnw, zqns_oce, zqprec_ice, zqemp_oce )
1496
1497	! --- evaporation --- !
1498	! clem: evap_ice is set to 0 for LIM3 since we still do not know what to do with sublimation
1499	! the problem is: the atm. imposes both mass evaporation and heat removed from the snow/ice
1500	! but it is incoherent WITH the ice model
1501	DO jl=1,jpl
1502	evap_ice(:,:,jl) = 0._wp ! should be: frcv(jpr_ievp)%z3(:,:,1)
1503	ENDDO
1504	zevap(:,:) = zemp_tot(:,:) + ztprecip(:,:) ! evaporation over ocean
1505
1506	! --- evaporation minus precipitation --- !
1507	emp_oce(:,:) = emp_tot(:,:) - emp_ice(:,:)
1508
1509	! --- non solar flux over ocean --- !
1510	! note: p_frld cannot be = 0 since we limit the ice concentration to amax
1511	zqns_oce = 0._wp
1512	WHERE( p_frld /= 0._wp ) zqns_oce(:,:) = ( zqns_tot(:,:) - SUM( a_i * zqns_ice, dim=3 ) ) / p_frld(:,:)
1513
1514	! --- heat flux associated with emp --- !
1515	CALL lim_thd_snwblow( p_frld, zsnw ) ! snow distribution over ice after wind blowing
1516	zqemp_oce(:,:) = - zevap(:,:) * p_frld(:,:) * zcptn(:,:) & ! evap
1517	& + ( ztprecip(:,:) - zsprecip(:,:) ) * zcptn(:,:) & ! liquid precip
1518	& + zsprecip(:,:) * ( 1._wp - zsnw ) * ( zcptn(:,:) - lfus ) ! solid precip over ocean
1519	qemp_ice(:,:) = - frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:) * zcptn(:,:) & ! ice evap
1520	& + zsprecip(:,:) * zsnw * ( zcptn(:,:) - lfus ) ! solid precip over ice
1521
1522	! --- heat content of precip over ice in J/m3 (to be used in 1D-thermo) --- !
1523	zqprec_ice(:,:) = rhosn * ( zcptn(:,:) - lfus )
1524
1525	! --- total non solar flux --- !
1526	zqns_tot(:,:) = zqns_tot(:,:) + qemp_ice(:,:) + zqemp_oce(:,:)
1527
1528	! --- in case both coupled/forced are active, we must mix values --- !
1529	IF( ln_mixcpl ) THEN
1530	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1531	qns_oce(:,:) = qns_oce(:,:) * xcplmask(:,:,0) + zqns_oce(:,:)* zmsk(:,:)
1532	DO jl=1,jpl
1533	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
1534	ENDDO
1535	qprec_ice(:,:) = qprec_ice(:,:) * xcplmask(:,:,0) + zqprec_ice(:,:)* zmsk(:,:)
1536	qemp_oce(:,:) = qemp_oce(:,:) * xcplmask(:,:,0) + zqemp_oce(:,:)* zmsk(:,:)
1537	!!clem evap_ice(:,:) = evap_ice(:,:) * xcplmask(:,:,0)
1538	ELSE
1539	qns_tot (:,: ) = zqns_tot (:,: )
1540	qns_oce (:,: ) = zqns_oce (:,: )
1541	qns_ice (:,:,:) = zqns_ice (:,:,:)
1542	qprec_ice(:,:) = zqprec_ice(:,:)
1543	qemp_oce (:,:) = zqemp_oce (:,:)
1544	ENDIF
1545
1546	CALL wrk_dealloc( jpi,jpj, zevap, zsnw, zqns_oce, zqprec_ice, zqemp_oce )
1547
1548	#else
1549
1550	! clem: this formulation is certainly wrong.
1551	zqns_tot(:,:) = zqns_tot(:,:) & ! zqns_tot update over free ocean with:
1552	& - ztmp(:,:) & ! remove the latent heat flux of solid precip. melting
1553	& - ( zemp_tot(:,:) & ! remove the heat content of mass flux (assumed to be at SST)
1554	& - zemp_ice(:,:) * zicefr(:,:) ) * zcptn(:,:)
1555
1556	IF( ln_mixcpl ) THEN
1557	qns_tot(:,:) = qns(:,:) * p_frld(:,:) + SUM( qns_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1558	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1559	DO jl=1,jpl
1560	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
1561	ENDDO
1562	ELSE
1563	qns_tot(:,: ) = zqns_tot(:,: )
1564	qns_ice(:,:,:) = zqns_ice(:,:,:)
1565	ENDIF
1566
1567	#endif
1568
1569	! ! ========================= !
1570	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) ) ! solar heat fluxes ! (qsr)
1571	! ! ========================= !
1572	CASE( 'oce only' )
1573	zqsr_tot(:,: ) = MAX( 0._wp , frcv(jpr_qsroce)%z3(:,:,1) )
1574	CASE( 'conservative' )
1575	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1576	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1577	zqsr_ice(:,:,1:jpl) = frcv(jpr_qsrice)%z3(:,:,1:jpl)
1578	ELSE
1579	! Set all category values equal for the moment
1580	DO jl=1,jpl
1581	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1582	ENDDO
1583	ENDIF
1584	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1585	zqsr_ice(:,:,1) = frcv(jpr_qsrice)%z3(:,:,1)
1586	CASE( 'oce and ice' )
1587	zqsr_tot(:,: ) = p_frld(:,:) * frcv(jpr_qsroce)%z3(:,:,1)
1588	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1589	DO jl=1,jpl
1590	zqsr_tot(:,: ) = zqsr_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qsrice)%z3(:,:,jl)
1591	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,jl)
1592	ENDDO
1593	ELSE
1594	qsr_tot(:,: ) = qsr_tot(:,:) + zicefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
1595	DO jl=1,jpl
1596	zqsr_tot(:,: ) = zqsr_tot(:,:) + zicefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
1597	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1598	ENDDO
1599	ENDIF
1600	CASE( 'mixed oce-ice' )
1601	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1602	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1603	! Create solar heat flux over ice using incoming solar heat flux and albedos
1604	! ( see OASIS3 user guide, 5th edition, p39 )
1605	zqsr_ice(:,:,1) = frcv(jpr_qsrmix)%z3(:,:,1) * ( 1.- palbi(:,:,1) ) &
1606	& / ( 1.- ( albedo_oce_mix(:,: ) * p_frld(:,:) &
1607	& + palbi (:,:,1) * zicefr(:,:) ) )
1608	END SELECT
1609	IF( ln_dm2dc ) THEN ! modify qsr to include the diurnal cycle
1610	zqsr_tot(:,: ) = sbc_dcy( zqsr_tot(:,: ) )
1611	DO jl=1,jpl
1612	zqsr_ice(:,:,jl) = sbc_dcy( zqsr_ice(:,:,jl) )
1613	ENDDO
1614	ENDIF
1615
1616	IF( ln_mixcpl ) THEN
1617	qsr_tot(:,:) = qsr(:,:) * p_frld(:,:) + SUM( qsr_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1618	qsr_tot(:,:) = qsr_tot(:,:) * xcplmask(:,:,0) + zqsr_tot(:,:)* zmsk(:,:)
1619	DO jl=1,jpl
1620	qsr_ice(:,:,jl) = qsr_ice(:,:,jl) * xcplmask(:,:,0) + zqsr_ice(:,:,jl)* zmsk(:,:)
1621	ENDDO
1622	ELSE
1623	qsr_tot(:,: ) = zqsr_tot(:,: )
1624	qsr_ice(:,:,:) = zqsr_ice(:,:,:)
1625	ENDIF
1626
1627	! ! ========================= !
1628	SELECT CASE( TRIM( sn_rcv_dqnsdt%cldes ) ) ! d(qns)/dt !
1629	! ! ========================= !
1630	CASE ('coupled')
1631	IF ( TRIM(sn_rcv_dqnsdt%clcat) == 'yes' ) THEN
1632	zdqns_ice(:,:,1:jpl) = frcv(jpr_dqnsdt)%z3(:,:,1:jpl)
1633	ELSE
1634	! Set all category values equal for the moment
1635	DO jl=1,jpl
1636	zdqns_ice(:,:,jl) = frcv(jpr_dqnsdt)%z3(:,:,1)
1637	ENDDO
1638	ENDIF
1639	END SELECT
1640
1641	IF( ln_mixcpl ) THEN
1642	DO jl=1,jpl
1643	dqns_ice(:,:,jl) = dqns_ice(:,:,jl) * xcplmask(:,:,0) + zdqns_ice(:,:,jl) * zmsk(:,:)
1644	ENDDO
1645	ELSE
1646	dqns_ice(:,:,:) = zdqns_ice(:,:,:)
1647	ENDIF
1648
1649	! ! ========================= !
1650	SELECT CASE( TRIM( sn_rcv_iceflx%cldes ) ) ! topmelt and botmelt !
1651	! ! ========================= !
1652	CASE ('coupled')
1653	topmelt(:,:,:)=frcv(jpr_topm)%z3(:,:,:)
1654	botmelt(:,:,:)=frcv(jpr_botm)%z3(:,:,:)
1655	END SELECT
1656
1657	! Surface transimission parameter io (Maykut Untersteiner , 1971 ; Ebert and Curry, 1993 )
1658	! Used for LIM2 and LIM3
1659	! Coupled case: since cloud cover is not received from atmosphere
1660	! ===> used prescribed cloud fraction representative for polar oceans in summer (0.81)
1661	fr1_i0(:,:) = ( 0.18 * ( 1.0 - cldf_ice ) + 0.35 * cldf_ice )
1662	fr2_i0(:,:) = ( 0.82 * ( 1.0 - cldf_ice ) + 0.65 * cldf_ice )
1663
1664	CALL wrk_dealloc( jpi,jpj, zcptn, ztmp, zicefr, zmsk, zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot )
1665	CALL wrk_dealloc( jpi,jpj,jpl, zqns_ice, zqsr_ice, zdqns_ice )
1666	!
1667	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_ice_flx')
1668	!
1669	END SUBROUTINE sbc_cpl_ice_flx
1670
1671
1672	SUBROUTINE sbc_cpl_snd( kt )
1673	!!----------------------------------------------------------------------
1674	!! * ROUTINE sbc_cpl_snd *
1675	!!
1676	!! ** Purpose : provide the ocean-ice informations to the atmosphere
1677	!!
1678	!! ** Method : send to the atmosphere through a call to cpl_snd
1679	!! all the needed fields (as defined in sbc_cpl_init)
1680	!!----------------------------------------------------------------------
1681	INTEGER, INTENT(in) :: kt
1682	!
1683	INTEGER :: ji, jj, jl ! dummy loop indices
1684	INTEGER :: isec, info ! local integer
1685	REAL(wp) :: zumax, zvmax
1686	REAL(wp), POINTER, DIMENSION(:,:) :: zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1
1687	REAL(wp), POINTER, DIMENSION(:,:,:) :: ztmp3, ztmp4
1688	!!----------------------------------------------------------------------
1689	!
1690	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_snd')
1691	!
1692	CALL wrk_alloc( jpi,jpj, zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1 )
1693	CALL wrk_alloc( jpi,jpj,jpl, ztmp3, ztmp4 )
1694
1695	isec = ( kt - nit000 ) * NINT(rdttra(1)) ! date of exchanges
1696
1697	zfr_l(:,:) = 1.- fr_i(:,:)
1698	! ! ------------------------- !
1699	! ! Surface temperature ! in Kelvin
1700	! ! ------------------------- !
1701	IF( ssnd(jps_toce)%laction .OR. ssnd(jps_tice)%laction .OR. ssnd(jps_tmix)%laction ) THEN
1702
1703	IF ( nn_components == jp_iam_opa ) THEN
1704	ztmp1(:,:) = tsn(:,:,1,jp_tem) ! send temperature as it is (potential or conservative) -> use of ln_useCT on the received part
1705	ELSE
1706	! we must send the surface potential temperature
1707	IF( ln_useCT ) THEN ; ztmp1(:,:) = eos_pt_from_ct( tsn(:,:,1,jp_tem), tsn(:,:,1,jp_sal) )
1708	ELSE ; ztmp1(:,:) = tsn(:,:,1,jp_tem)
1709	ENDIF
1710	!
1711	SELECT CASE( sn_snd_temp%cldes)
1712	CASE( 'oce only' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
1713	CASE( 'weighted oce and ice' ) ; ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
1714	SELECT CASE( sn_snd_temp%clcat )
1715	CASE( 'yes' )
1716	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
1717	CASE( 'no' )
1718	ztmp3(:,:,:) = 0.0
1719	DO jl=1,jpl
1720	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
1721	ENDDO
1722	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
1723	END SELECT
1724	CASE( 'mixed oce-ice' )
1725	ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
1726	DO jl=1,jpl
1727	ztmp1(:,:) = ztmp1(:,:) + tn_ice(:,:,jl) * a_i(:,:,jl)
1728	ENDDO
1729	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%cldes' )
1730	END SELECT
1731	ENDIF
1732	IF( ssnd(jps_toce)%laction ) CALL cpl_snd( jps_toce, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1733	IF( ssnd(jps_tice)%laction ) CALL cpl_snd( jps_tice, isec, ztmp3, info )
1734	IF( ssnd(jps_tmix)%laction ) CALL cpl_snd( jps_tmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1735	ENDIF
1736	! ! ------------------------- !
1737	! ! Albedo !
1738	! ! ------------------------- !
1739	IF( ssnd(jps_albice)%laction ) THEN ! ice
1740	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
1741	CALL cpl_snd( jps_albice, isec, ztmp3, info )
1742	ENDIF
1743	IF( ssnd(jps_albmix)%laction ) THEN ! mixed ice-ocean
1744	ztmp1(:,:) = albedo_oce_mix(:,:) * zfr_l(:,:)
1745	DO jl=1,jpl
1746	ztmp1(:,:) = ztmp1(:,:) + alb_ice(:,:,jl) * a_i(:,:,jl)
1747	ENDDO
1748	CALL cpl_snd( jps_albmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1749	ENDIF
1750	! ! ------------------------- !
1751	! ! Ice fraction & Thickness !
1752	! ! ------------------------- !
1753	! Send ice fraction field to atmosphere
1754	IF( ssnd(jps_fice)%laction ) THEN
1755	SELECT CASE( sn_snd_thick%clcat )
1756	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
1757	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
1758	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1759	END SELECT
1760	IF( ssnd(jps_fice)%laction ) CALL cpl_snd( jps_fice, isec, ztmp3, info )
1761	ENDIF
1762
1763	! Send ice fraction field to OPA (sent by SAS in SAS-OPA coupling)
1764	IF( ssnd(jps_fice2)%laction ) THEN
1765	ztmp3(:,:,1) = fr_i(:,:)
1766	IF( ssnd(jps_fice2)%laction ) CALL cpl_snd( jps_fice2, isec, ztmp3, info )
1767	ENDIF
1768
1769	! Send ice and snow thickness field
1770	IF( ssnd(jps_hice)%laction .OR. ssnd(jps_hsnw)%laction ) THEN
1771	SELECT CASE( sn_snd_thick%cldes)
1772	CASE( 'none' ) ! nothing to do
1773	CASE( 'weighted ice and snow' )
1774	SELECT CASE( sn_snd_thick%clcat )
1775	CASE( 'yes' )
1776	ztmp3(:,:,1:jpl) = ht_i(:,:,1:jpl) * a_i(:,:,1:jpl)
1777	ztmp4(:,:,1:jpl) = ht_s(:,:,1:jpl) * a_i(:,:,1:jpl)
1778	CASE( 'no' )
1779	ztmp3(:,:,:) = 0.0 ; ztmp4(:,:,:) = 0.0
1780	DO jl=1,jpl
1781	ztmp3(:,:,1) = ztmp3(:,:,1) + ht_i(:,:,jl) * a_i(:,:,jl)
1782	ztmp4(:,:,1) = ztmp4(:,:,1) + ht_s(:,:,jl) * a_i(:,:,jl)
1783	ENDDO
1784	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1785	END SELECT
1786	CASE( 'ice and snow' )
1787	ztmp3(:,:,1:jpl) = ht_i(:,:,1:jpl)
1788	ztmp4(:,:,1:jpl) = ht_s(:,:,1:jpl)
1789	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%cldes' )
1790	END SELECT
1791	IF( ssnd(jps_hice)%laction ) CALL cpl_snd( jps_hice, isec, ztmp3, info )
1792	IF( ssnd(jps_hsnw)%laction ) CALL cpl_snd( jps_hsnw, isec, ztmp4, info )
1793	ENDIF
1794	!
1795	#if defined key_cpl_carbon_cycle
1796	! ! ------------------------- !
1797	! ! CO2 flux from PISCES !
1798	! ! ------------------------- !
1799	IF( ssnd(jps_co2)%laction ) CALL cpl_snd( jps_co2, isec, RESHAPE ( oce_co2, (/jpi,jpj,1/) ) , info )
1800	!
1801	#endif
1802	! ! ------------------------- !
1803	IF( ssnd(jps_ocx1)%laction ) THEN ! Surface current !
1804	! ! ------------------------- !
1805	!
1806	! j+1 j -----V---F
1807	! surface velocity always sent from T point ! \|
1808	! j \| T U
1809	! \| \|
1810	! j j-1 -I-------\|
1811	! (for I) \| \|
1812	! i-1 i i
1813	! i i+1 (for I)
1814	IF( nn_components == jp_iam_opa ) THEN
1815	zotx1(:,:) = un(:,:,1)
1816	zoty1(:,:) = vn(:,:,1)
1817	ELSE
1818	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
1819	CASE( 'oce only' ) ! C-grid ==> T
1820	DO jj = 2, jpjm1
1821	DO ji = fs_2, fs_jpim1 ! vector opt.
1822	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
1823	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) )
1824	END DO
1825	END DO
1826	CASE( 'weighted oce and ice' )
1827	SELECT CASE ( cp_ice_msh )
1828	CASE( 'C' ) ! Ocean and Ice on C-grid ==> T
1829	DO jj = 2, jpjm1
1830	DO ji = fs_2, fs_jpim1 ! vector opt.
1831	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
1832	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
1833	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
1834	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
1835	END DO
1836	END DO
1837	CASE( 'I' ) ! Ocean on C grid, Ice on I-point (B-grid) ==> T
1838	DO jj = 2, jpjm1
1839	DO ji = 2, jpim1 ! NO vector opt.
1840	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj)
1841	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj)
1842	zitx1(ji,jj) = 0.25 * ( u_ice(ji+1,jj+1) + u_ice(ji,jj+1) &
1843	& + u_ice(ji+1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1844	zity1(ji,jj) = 0.25 * ( v_ice(ji+1,jj+1) + v_ice(ji,jj+1) &
1845	& + v_ice(ji+1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1846	END DO
1847	END DO
1848	CASE( 'F' ) ! Ocean on C grid, Ice on F-point (B-grid) ==> T
1849	DO jj = 2, jpjm1
1850	DO ji = 2, jpim1 ! NO vector opt.
1851	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj)
1852	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj)
1853	zitx1(ji,jj) = 0.25 * ( u_ice(ji-1,jj-1) + u_ice(ji,jj-1) &
1854	& + u_ice(ji-1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1855	zity1(ji,jj) = 0.25 * ( v_ice(ji-1,jj-1) + v_ice(ji,jj-1) &
1856	& + v_ice(ji-1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1857	END DO
1858	END DO
1859	END SELECT
1860	CALL lbc_lnk( zitx1, 'T', -1. ) ; CALL lbc_lnk( zity1, 'T', -1. )
1861	CASE( 'mixed oce-ice' )
1862	SELECT CASE ( cp_ice_msh )
1863	CASE( 'C' ) ! Ocean and Ice on C-grid ==> T
1864	DO jj = 2, jpjm1
1865	DO ji = fs_2, fs_jpim1 ! vector opt.
1866	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
1867	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
1868	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
1869	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
1870	END DO
1871	END DO
1872	CASE( 'I' ) ! Ocean on C grid, Ice on I-point (B-grid) ==> T
1873	DO jj = 2, jpjm1
1874	DO ji = 2, jpim1 ! NO vector opt.
1875	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj) &
1876	& + 0.25 * ( u_ice(ji+1,jj+1) + u_ice(ji,jj+1) &
1877	& + u_ice(ji+1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1878	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj) &
1879	& + 0.25 * ( v_ice(ji+1,jj+1) + v_ice(ji,jj+1) &
1880	& + v_ice(ji+1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1881	END DO
1882	END DO
1883	CASE( 'F' ) ! Ocean on C grid, Ice on F-point (B-grid) ==> T
1884	DO jj = 2, jpjm1
1885	DO ji = 2, jpim1 ! NO vector opt.
1886	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj) &
1887	& + 0.25 * ( u_ice(ji-1,jj-1) + u_ice(ji,jj-1) &
1888	& + u_ice(ji-1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1889	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj) &
1890	& + 0.25 * ( v_ice(ji-1,jj-1) + v_ice(ji,jj-1) &
1891	& + v_ice(ji-1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1892	END DO
1893	END DO
1894	END SELECT
1895	END SELECT
1896	CALL lbc_lnk( zotx1, ssnd(jps_ocx1)%clgrid, -1. ) ; CALL lbc_lnk( zoty1, ssnd(jps_ocy1)%clgrid, -1. )
1897	!
1898	ENDIF
1899	!
1900	!
1901	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
1902	! ! Ocean component
1903	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
1904	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
1905	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
1906	zoty1(:,:) = ztmp2(:,:)
1907	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
1908	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
1909	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
1910	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
1911	zity1(:,:) = ztmp2(:,:)
1912	ENDIF
1913	ENDIF
1914	!
1915	! spherical coordinates to cartesian -> 2 components to 3 components
1916	IF( TRIM( sn_snd_crt%clvref ) == 'cartesian' ) THEN
1917	ztmp1(:,:) = zotx1(:,:) ! ocean currents
1918	ztmp2(:,:) = zoty1(:,:)
1919	CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
1920	!
1921	IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
1922	ztmp1(:,:) = zitx1(:,:)
1923	ztmp1(:,:) = zity1(:,:)
1924	CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
1925	ENDIF
1926	ENDIF
1927	!
1928	IF( ssnd(jps_ocx1)%laction ) CALL cpl_snd( jps_ocx1, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
1929	IF( ssnd(jps_ocy1)%laction ) CALL cpl_snd( jps_ocy1, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
1930	IF( ssnd(jps_ocz1)%laction ) CALL cpl_snd( jps_ocz1, isec, RESHAPE ( zotz1, (/jpi,jpj,1/) ), info ) ! ocean z current 1st grid
1931	!
1932	IF( ssnd(jps_ivx1)%laction ) CALL cpl_snd( jps_ivx1, isec, RESHAPE ( zitx1, (/jpi,jpj,1/) ), info ) ! ice x current 1st grid
1933	IF( ssnd(jps_ivy1)%laction ) CALL cpl_snd( jps_ivy1, isec, RESHAPE ( zity1, (/jpi,jpj,1/) ), info ) ! ice y current 1st grid
1934	IF( ssnd(jps_ivz1)%laction ) CALL cpl_snd( jps_ivz1, isec, RESHAPE ( zitz1, (/jpi,jpj,1/) ), info ) ! ice z current 1st grid
1935	!
1936	ENDIF
1937	!
1938	!
1939	! Fields sent to SAS by OPA when doing OPA<->SAS coupling
1940	! ! SSH
1941	IF( ssnd(jps_ssh )%laction ) THEN
1942	! ! removed inverse barometer ssh when Patm
1943	! forcing is used (for sea-ice dynamics)
1944	IF( ln_apr_dyn ) THEN ; ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
1945	ELSE ; ztmp1(:,:) = sshn(:,:)
1946	ENDIF
1947	CALL cpl_snd( jps_ssh , isec, RESHAPE ( ztmp1 , (/jpi,jpj,1/) ), info )
1948
1949	ENDIF
1950	! ! SSS
1951	IF( ssnd(jps_soce )%laction ) THEN
1952	CALL cpl_snd( jps_soce , isec, RESHAPE ( tsn(:,:,1,jp_sal), (/jpi,jpj,1/) ), info )
1953	ENDIF
1954	! ! first T level thickness
1955	IF( ssnd(jps_e3t1st )%laction ) THEN
1956	CALL cpl_snd( jps_e3t1st, isec, RESHAPE ( fse3t_n(:,:,1) , (/jpi,jpj,1/) ), info )
1957	ENDIF
1958	! ! Qsr fraction
1959	IF( ssnd(jps_fraqsr)%laction ) THEN
1960	CALL cpl_snd( jps_fraqsr, isec, RESHAPE ( frq_m , (/jpi,jpj,1/) ), info )
1961	ENDIF
1962	!
1963	! Fields sent to ocean by ice model when OASIS coupling
1964	! ! Solar heat flux
1965	IF( ssnd(jps_qsroce)%laction ) CALL cpl_snd( jps_qsroce, isec, RESHAPE ( qsr , (/jpi,jpj,1/) ), info )
1966	IF( ssnd(jps_qnsoce)%laction ) CALL cpl_snd( jps_qnsoce, isec, RESHAPE ( qns , (/jpi,jpj,1/) ), info )
1967	IF( ssnd(jps_oemp )%laction ) CALL cpl_snd( jps_oemp , isec, RESHAPE ( emp , (/jpi,jpj,1/) ), info )
1968	IF( ssnd(jps_sflx )%laction ) CALL cpl_snd( jps_sflx , isec, RESHAPE ( sfx , (/jpi,jpj,1/) ), info )
1969	IF( ssnd(jps_otx1 )%laction ) CALL cpl_snd( jps_otx1 , isec, RESHAPE ( utau, (/jpi,jpj,1/) ), info )
1970	IF( ssnd(jps_oty1 )%laction ) CALL cpl_snd( jps_oty1 , isec, RESHAPE ( vtau, (/jpi,jpj,1/) ), info )
1971	IF( ssnd(jps_rnf )%laction ) CALL cpl_snd( jps_rnf , isec, RESHAPE ( rnf , (/jpi,jpj,1/) ), info )
1972	IF( ssnd(jps_taum )%laction ) CALL cpl_snd( jps_taum , isec, RESHAPE ( taum, (/jpi,jpj,1/) ), info )
1973
1974	CALL wrk_dealloc( jpi,jpj, zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1 )
1975	CALL wrk_dealloc( jpi,jpj,jpl, ztmp3, ztmp4 )
1976	!
1977	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_snd')
1978	!
1979	END SUBROUTINE sbc_cpl_snd
1980
1981	!!======================================================================
1982	END MODULE sbccpl

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