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sbccpl.F90 in branches/UKMO/dev_r5107_hadgem3_mct/NEMOGCM/NEMO/OPA_SRC/SBC – NEMO

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source: branches/UKMO/dev_r5107_hadgem3_mct/NEMOGCM/NEMO/OPA_SRC/SBC/sbccpl.F90 @ 5568

Last change on this file since 5568 was 5568, checked in by davestorkey, 9 years ago
Upgrade UKMO/dev_r5107_hadgem3_mct branch to trunk revision 5518 ( = branching point for NEMO 3.6_stable).
File size: 120.8 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, sshb, fraqsr_1lev
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	#if defined key_oasis3 \|\| defined key_oasis3mct
44	USE mod_oasis ! OASIS3-MCT module
45	#endif
46	USE eosbn2
47	USE sbcrnf , ONLY : l_rnfcpl
48	#if defined key_cpl_carbon_cycle
49	USE p4zflx, ONLY : oce_co2
50	#endif
51	#if defined key_cice
52	USE ice_domain_size, only: ncat
53	#endif
54	#if defined key_lim3
55	USE limthd_dh ! for CALL lim_thd_snwblow
56	#endif
57
58	IMPLICIT NONE
59	PRIVATE
60
61	PUBLIC sbc_cpl_init ! routine called by sbcmod.F90
62	PUBLIC sbc_cpl_rcv ! routine called by sbc_ice_lim(_2).F90
63	PUBLIC sbc_cpl_snd ! routine called by step.F90
64	PUBLIC sbc_cpl_ice_tau ! routine called by sbc_ice_lim(_2).F90
65	PUBLIC sbc_cpl_ice_flx ! routine called by sbc_ice_lim(_2).F90
66	PUBLIC sbc_cpl_alloc ! routine called in sbcice_cice.F90
67
68	INTEGER, PARAMETER :: jpr_otx1 = 1 ! 3 atmosphere-ocean stress components on grid 1
69	INTEGER, PARAMETER :: jpr_oty1 = 2 !
70	INTEGER, PARAMETER :: jpr_otz1 = 3 !
71	INTEGER, PARAMETER :: jpr_otx2 = 4 ! 3 atmosphere-ocean stress components on grid 2
72	INTEGER, PARAMETER :: jpr_oty2 = 5 !
73	INTEGER, PARAMETER :: jpr_otz2 = 6 !
74	INTEGER, PARAMETER :: jpr_itx1 = 7 ! 3 atmosphere-ice stress components on grid 1
75	INTEGER, PARAMETER :: jpr_ity1 = 8 !
76	INTEGER, PARAMETER :: jpr_itz1 = 9 !
77	INTEGER, PARAMETER :: jpr_itx2 = 10 ! 3 atmosphere-ice stress components on grid 2
78	INTEGER, PARAMETER :: jpr_ity2 = 11 !
79	INTEGER, PARAMETER :: jpr_itz2 = 12 !
80	INTEGER, PARAMETER :: jpr_qsroce = 13 ! Qsr above the ocean
81	INTEGER, PARAMETER :: jpr_qsrice = 14 ! Qsr above the ice
82	INTEGER, PARAMETER :: jpr_qsrmix = 15
83	INTEGER, PARAMETER :: jpr_qnsoce = 16 ! Qns above the ocean
84	INTEGER, PARAMETER :: jpr_qnsice = 17 ! Qns above the ice
85	INTEGER, PARAMETER :: jpr_qnsmix = 18
86	INTEGER, PARAMETER :: jpr_rain = 19 ! total liquid precipitation (rain)
87	INTEGER, PARAMETER :: jpr_snow = 20 ! solid precipitation over the ocean (snow)
88	INTEGER, PARAMETER :: jpr_tevp = 21 ! total evaporation
89	INTEGER, PARAMETER :: jpr_ievp = 22 ! solid evaporation (sublimation)
90	INTEGER, PARAMETER :: jpr_sbpr = 23 ! sublimation - liquid precipitation - solid precipitation
91	INTEGER, PARAMETER :: jpr_semp = 24 ! solid freshwater budget (sublimation - snow)
92	INTEGER, PARAMETER :: jpr_oemp = 25 ! ocean freshwater budget (evap - precip)
93	INTEGER, PARAMETER :: jpr_w10m = 26 ! 10m wind
94	INTEGER, PARAMETER :: jpr_dqnsdt = 27 ! d(Q non solar)/d(temperature)
95	INTEGER, PARAMETER :: jpr_rnf = 28 ! runoffs
96	INTEGER, PARAMETER :: jpr_cal = 29 ! calving
97	INTEGER, PARAMETER :: jpr_taum = 30 ! wind stress module
98	INTEGER, PARAMETER :: jpr_co2 = 31
99	INTEGER, PARAMETER :: jpr_topm = 32 ! topmeltn
100	INTEGER, PARAMETER :: jpr_botm = 33 ! botmeltn
101	INTEGER, PARAMETER :: jpr_sflx = 34 ! salt flux
102	INTEGER, PARAMETER :: jpr_toce = 35 ! ocean temperature
103	INTEGER, PARAMETER :: jpr_soce = 36 ! ocean salinity
104	INTEGER, PARAMETER :: jpr_ocx1 = 37 ! ocean current on grid 1
105	INTEGER, PARAMETER :: jpr_ocy1 = 38 !
106	INTEGER, PARAMETER :: jpr_ssh = 39 ! sea surface height
107	INTEGER, PARAMETER :: jpr_fice = 40 ! ice fraction
108	INTEGER, PARAMETER :: jpr_e3t1st = 41 ! first T level thickness
109	INTEGER, PARAMETER :: jpr_fraqsr = 42 ! fraction of solar net radiation absorbed in the first ocean level
110	INTEGER, PARAMETER :: jprcv = 42 ! total number of fields received
111
112	INTEGER, PARAMETER :: jps_fice = 1 ! ice fraction sent to the atmosphere
113	INTEGER, PARAMETER :: jps_toce = 2 ! ocean temperature
114	INTEGER, PARAMETER :: jps_tice = 3 ! ice temperature
115	INTEGER, PARAMETER :: jps_tmix = 4 ! mixed temperature (ocean+ice)
116	INTEGER, PARAMETER :: jps_albice = 5 ! ice albedo
117	INTEGER, PARAMETER :: jps_albmix = 6 ! mixed albedo
118	INTEGER, PARAMETER :: jps_hice = 7 ! ice thickness
119	INTEGER, PARAMETER :: jps_hsnw = 8 ! snow thickness
120	INTEGER, PARAMETER :: jps_ocx1 = 9 ! ocean current on grid 1
121	INTEGER, PARAMETER :: jps_ocy1 = 10 !
122	INTEGER, PARAMETER :: jps_ocz1 = 11 !
123	INTEGER, PARAMETER :: jps_ivx1 = 12 ! ice current on grid 1
124	INTEGER, PARAMETER :: jps_ivy1 = 13 !
125	INTEGER, PARAMETER :: jps_ivz1 = 14 !
126	INTEGER, PARAMETER :: jps_co2 = 15
127	INTEGER, PARAMETER :: jps_soce = 16 ! ocean salinity
128	INTEGER, PARAMETER :: jps_ssh = 17 ! sea surface height
129	INTEGER, PARAMETER :: jps_qsroce = 18 ! Qsr above the ocean
130	INTEGER, PARAMETER :: jps_qnsoce = 19 ! Qns above the ocean
131	INTEGER, PARAMETER :: jps_oemp = 20 ! ocean freshwater budget (evap - precip)
132	INTEGER, PARAMETER :: jps_sflx = 21 ! salt flux
133	INTEGER, PARAMETER :: jps_otx1 = 22 ! 2 atmosphere-ocean stress components on grid 1
134	INTEGER, PARAMETER :: jps_oty1 = 23 !
135	INTEGER, PARAMETER :: jps_rnf = 24 ! runoffs
136	INTEGER, PARAMETER :: jps_taum = 25 ! wind stress module
137	INTEGER, PARAMETER :: jps_fice2 = 26 ! ice fraction sent to OPA (by SAS when doing SAS-OPA coupling)
138	INTEGER, PARAMETER :: jps_e3t1st = 27 ! first level depth (vvl)
139	INTEGER, PARAMETER :: jps_fraqsr = 28 ! fraction of solar net radiation absorbed in the first ocean level
140	INTEGER, PARAMETER :: jpsnd = 28 ! total number of fields sended
141
142	! !! namelist namsbc_cpl
143	TYPE :: FLD_C
144	CHARACTER(len = 32) :: cldes ! desciption of the coupling strategy
145	CHARACTER(len = 32) :: clcat ! multiple ice categories strategy
146	CHARACTER(len = 32) :: clvref ! reference of vector ('spherical' or 'cartesian')
147	CHARACTER(len = 32) :: clvor ! orientation of vector fields ('eastward-northward' or 'local grid')
148	CHARACTER(len = 32) :: clvgrd ! grids on which is located the vector fields
149	END TYPE FLD_C
150	! Send to the atmosphere !
151	TYPE(FLD_C) :: sn_snd_temp, sn_snd_alb, sn_snd_thick, sn_snd_crt, sn_snd_co2
152	! Received from the atmosphere !
153	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
154	TYPE(FLD_C) :: sn_rcv_cal, sn_rcv_iceflx, sn_rcv_co2
155	! Other namelist parameters !
156	INTEGER :: nn_cplmodel ! Maximum number of models to/from which NEMO is potentialy sending/receiving data
157	LOGICAL :: ln_usecplmask ! use a coupling mask file to merge data received from several models
158	! -> file cplmask.nc with the float variable called cplmask (jpi,jpj,nn_cplmodel)
159	TYPE :: DYNARR
160	REAL(wp), POINTER, DIMENSION(:,:,:) :: z3
161	END TYPE DYNARR
162
163	TYPE( DYNARR ), SAVE, DIMENSION(jprcv) :: frcv ! all fields recieved from the atmosphere
164
165	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: albedo_oce_mix ! ocean albedo sent to atmosphere (mix clear/overcast sky)
166
167	INTEGER , ALLOCATABLE, SAVE, DIMENSION( :) :: nrcvinfo ! OASIS info argument
168
169	!! Substitution
170	# include "domzgr_substitute.h90"
171	# include "vectopt_loop_substitute.h90"
172	!!----------------------------------------------------------------------
173	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
174	!! $Id$
175	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
176	!!----------------------------------------------------------------------
177
178	CONTAINS
179
180	INTEGER FUNCTION sbc_cpl_alloc()
181	!!----------------------------------------------------------------------
182	!! * FUNCTION sbc_cpl_alloc *
183	!!----------------------------------------------------------------------
184	INTEGER :: ierr(3)
185	!!----------------------------------------------------------------------
186	ierr(:) = 0
187	!
188	ALLOCATE( albedo_oce_mix(jpi,jpj), nrcvinfo(jprcv), STAT=ierr(1) )
189
190	#if ! defined key_lim3 && ! defined key_lim2 && ! defined key_cice
191	ALLOCATE( a_i(jpi,jpj,1) , STAT=ierr(2) ) ! used in sbcice_if.F90 (done here as there is no sbc_ice_if_init)
192	#endif
193	ALLOCATE( xcplmask(jpi,jpj,0:nn_cplmodel) , STAT=ierr(3) )
194	!
195	sbc_cpl_alloc = MAXVAL( ierr )
196	IF( lk_mpp ) CALL mpp_sum ( sbc_cpl_alloc )
197	IF( sbc_cpl_alloc > 0 ) CALL ctl_warn('sbc_cpl_alloc: allocation of arrays failed')
198	!
199	END FUNCTION sbc_cpl_alloc
200
201
202	SUBROUTINE sbc_cpl_init( k_ice )
203	!!----------------------------------------------------------------------
204	!! * ROUTINE sbc_cpl_init *
205	!!
206	!! ** Purpose : Initialisation of send and received information from
207	!! the atmospheric component
208	!!
209	!! ** Method : * Read namsbc_cpl namelist
210	!! * define the receive interface
211	!! * define the send interface
212	!! * initialise the OASIS coupler
213	!!----------------------------------------------------------------------
214	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
215	!!
216	INTEGER :: jn ! dummy loop index
217	INTEGER :: ios ! Local integer output status for namelist read
218	INTEGER :: inum
219	REAL(wp), POINTER, DIMENSION(:,:) :: zacs, zaos
220	!!
221	NAMELIST/namsbc_cpl/ sn_snd_temp, sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2, &
222	& sn_rcv_w10m, sn_rcv_taumod, sn_rcv_tau , sn_rcv_dqnsdt, sn_rcv_qsr, &
223	& sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf , sn_rcv_cal , sn_rcv_iceflx, &
224	& sn_rcv_co2 , nn_cplmodel , ln_usecplmask
225	!!---------------------------------------------------------------------
226	!
227	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_init')
228	!
229	CALL wrk_alloc( jpi,jpj, zacs, zaos )
230
231	! ================================ !
232	! Namelist informations !
233	! ================================ !
234
235	REWIND( numnam_ref ) ! Namelist namsbc_cpl in reference namelist : Variables for OASIS coupling
236	READ ( numnam_ref, namsbc_cpl, IOSTAT = ios, ERR = 901)
237	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in reference namelist', lwp )
238
239	REWIND( numnam_cfg ) ! Namelist namsbc_cpl in configuration namelist : Variables for OASIS coupling
240	READ ( numnam_cfg, namsbc_cpl, IOSTAT = ios, ERR = 902 )
241	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in configuration namelist', lwp )
242	IF(lwm) WRITE ( numond, namsbc_cpl )
243
244	IF(lwp) THEN ! control print
245	WRITE(numout,*)
246	WRITE(numout,*)'sbc_cpl_init : namsbc_cpl namelist '
247	WRITE(numout,*)'~~~~~~~~~~~~'
248	ENDIF
249	IF( lwp .AND. ln_cpl ) THEN ! control print
250	WRITE(numout,*)' received fields (mutiple ice categogies)'
251	WRITE(numout,*)' 10m wind module = ', TRIM(sn_rcv_w10m%cldes ), ' (', TRIM(sn_rcv_w10m%clcat ), ')'
252	WRITE(numout,*)' stress module = ', TRIM(sn_rcv_taumod%cldes), ' (', TRIM(sn_rcv_taumod%clcat), ')'
253	WRITE(numout,*)' surface stress = ', TRIM(sn_rcv_tau%cldes ), ' (', TRIM(sn_rcv_tau%clcat ), ')'
254	WRITE(numout,*)' - referential = ', sn_rcv_tau%clvref
255	WRITE(numout,*)' - orientation = ', sn_rcv_tau%clvor
256	WRITE(numout,*)' - mesh = ', sn_rcv_tau%clvgrd
257	WRITE(numout,*)' non-solar heat flux sensitivity = ', TRIM(sn_rcv_dqnsdt%cldes), ' (', TRIM(sn_rcv_dqnsdt%clcat), ')'
258	WRITE(numout,*)' solar heat flux = ', TRIM(sn_rcv_qsr%cldes ), ' (', TRIM(sn_rcv_qsr%clcat ), ')'
259	WRITE(numout,*)' non-solar heat flux = ', TRIM(sn_rcv_qns%cldes ), ' (', TRIM(sn_rcv_qns%clcat ), ')'
260	WRITE(numout,*)' freshwater budget = ', TRIM(sn_rcv_emp%cldes ), ' (', TRIM(sn_rcv_emp%clcat ), ')'
261	WRITE(numout,*)' runoffs = ', TRIM(sn_rcv_rnf%cldes ), ' (', TRIM(sn_rcv_rnf%clcat ), ')'
262	WRITE(numout,*)' calving = ', TRIM(sn_rcv_cal%cldes ), ' (', TRIM(sn_rcv_cal%clcat ), ')'
263	WRITE(numout,*)' sea ice heat fluxes = ', TRIM(sn_rcv_iceflx%cldes), ' (', TRIM(sn_rcv_iceflx%clcat), ')'
264	WRITE(numout,*)' atm co2 = ', TRIM(sn_rcv_co2%cldes ), ' (', TRIM(sn_rcv_co2%clcat ), ')'
265	WRITE(numout,*)' sent fields (multiple ice categories)'
266	WRITE(numout,*)' surface temperature = ', TRIM(sn_snd_temp%cldes ), ' (', TRIM(sn_snd_temp%clcat ), ')'
267	WRITE(numout,*)' albedo = ', TRIM(sn_snd_alb%cldes ), ' (', TRIM(sn_snd_alb%clcat ), ')'
268	WRITE(numout,*)' ice/snow thickness = ', TRIM(sn_snd_thick%cldes ), ' (', TRIM(sn_snd_thick%clcat ), ')'
269	WRITE(numout,*)' surface current = ', TRIM(sn_snd_crt%cldes ), ' (', TRIM(sn_snd_crt%clcat ), ')'
270	WRITE(numout,*)' - referential = ', sn_snd_crt%clvref
271	WRITE(numout,*)' - orientation = ', sn_snd_crt%clvor
272	WRITE(numout,*)' - mesh = ', sn_snd_crt%clvgrd
273	WRITE(numout,*)' oce co2 flux = ', TRIM(sn_snd_co2%cldes ), ' (', TRIM(sn_snd_co2%clcat ), ')'
274	WRITE(numout,*)' nn_cplmodel = ', nn_cplmodel
275	WRITE(numout,*)' ln_usecplmask = ', ln_usecplmask
276	ENDIF
277
278	! ! allocate sbccpl arrays
279	IF( sbc_cpl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_cpl_alloc : unable to allocate arrays' )
280
281	! ================================ !
282	! Define the receive interface !
283	! ================================ !
284	nrcvinfo(:) = OASIS_idle ! needed by nrcvinfo(jpr_otx1) if we do not receive ocean stress
285
286	! for each field: define the OASIS name (srcv(:)%clname)
287	! define receive or not from the namelist parameters (srcv(:)%laction)
288	! define the north fold type of lbc (srcv(:)%nsgn)
289
290	! default definitions of srcv
291	srcv(:)%laction = .FALSE. ; srcv(:)%clgrid = 'T' ; srcv(:)%nsgn = 1. ; srcv(:)%nct = 1
292
293	! ! ------------------------- !
294	! ! ice and ocean wind stress !
295	! ! ------------------------- !
296	! ! Name
297	srcv(jpr_otx1)%clname = 'O_OTaux1' ! 1st ocean component on grid ONE (T or U)
298	srcv(jpr_oty1)%clname = 'O_OTauy1' ! 2nd - - - -
299	srcv(jpr_otz1)%clname = 'O_OTauz1' ! 3rd - - - -
300	srcv(jpr_otx2)%clname = 'O_OTaux2' ! 1st ocean component on grid TWO (V)
301	srcv(jpr_oty2)%clname = 'O_OTauy2' ! 2nd - - - -
302	srcv(jpr_otz2)%clname = 'O_OTauz2' ! 3rd - - - -
303	!
304	srcv(jpr_itx1)%clname = 'O_ITaux1' ! 1st ice component on grid ONE (T, F, I or U)
305	srcv(jpr_ity1)%clname = 'O_ITauy1' ! 2nd - - - -
306	srcv(jpr_itz1)%clname = 'O_ITauz1' ! 3rd - - - -
307	srcv(jpr_itx2)%clname = 'O_ITaux2' ! 1st ice component on grid TWO (V)
308	srcv(jpr_ity2)%clname = 'O_ITauy2' ! 2nd - - - -
309	srcv(jpr_itz2)%clname = 'O_ITauz2' ! 3rd - - - -
310	!
311	! Vectors: change of sign at north fold ONLY if on the local grid
312	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) srcv(jpr_otx1:jpr_itz2)%nsgn = -1.
313
314	! ! Set grid and action
315	SELECT CASE( TRIM( sn_rcv_tau%clvgrd ) ) ! 'T', 'U,V', 'U,V,I', 'U,V,F', 'T,I', 'T,F', or 'T,U,V'
316	CASE( 'T' )
317	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
318	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
319	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
320	CASE( 'U,V' )
321	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
322	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
323	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
324	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
325	srcv(jpr_otx1:jpr_itz2)%laction = .TRUE. ! receive oce and ice components on both grid 1 & 2
326	CASE( 'U,V,T' )
327	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
328	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
329	srcv(jpr_itx1:jpr_itz1)%clgrid = 'T' ! ice components given at T-point
330	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
331	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
332	CASE( 'U,V,I' )
333	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
334	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
335	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
336	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
337	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
338	CASE( 'U,V,F' )
339	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
340	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
341	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
342	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
343	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
344	CASE( 'T,I' )
345	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
346	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
347	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
348	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
349	CASE( 'T,F' )
350	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
351	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
352	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
353	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
354	CASE( 'T,U,V' )
355	srcv(jpr_otx1:jpr_otz1)%clgrid = 'T' ! oce components given at T-point
356	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
357	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
358	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1 only
359	srcv(jpr_itx1:jpr_itz2)%laction = .TRUE. ! receive ice components on grid 1 & 2
360	CASE default
361	CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_tau%clvgrd' )
362	END SELECT
363	!
364	IF( TRIM( sn_rcv_tau%clvref ) == 'spherical' ) & ! spherical: 3rd component not received
365	& srcv( (/jpr_otz1, jpr_otz2, jpr_itz1, jpr_itz2/) )%laction = .FALSE.
366	!
367	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) THEN ! already on local grid -> no need of the second grid
368	srcv(jpr_otx2:jpr_otz2)%laction = .FALSE.
369	srcv(jpr_itx2:jpr_itz2)%laction = .FALSE.
370	srcv(jpr_oty1)%clgrid = srcv(jpr_oty2)%clgrid ! not needed but cleaner...
371	srcv(jpr_ity1)%clgrid = srcv(jpr_ity2)%clgrid ! not needed but cleaner...
372	ENDIF
373	!
374	IF( TRIM( sn_rcv_tau%cldes ) /= 'oce and ice' ) THEN ! 'oce and ice' case ocean stress on ocean mesh used
375	srcv(jpr_itx1:jpr_itz2)%laction = .FALSE. ! ice components not received
376	srcv(jpr_itx1)%clgrid = 'U' ! ocean stress used after its transformation
377	srcv(jpr_ity1)%clgrid = 'V' ! i.e. it is always at U- & V-points for i- & j-comp. resp.
378	ENDIF
379
380	! ! ------------------------- !
381	! ! freshwater budget ! E-P
382	! ! ------------------------- !
383	! we suppose that atmosphere modele do not make the difference between precipiration (liquide or solid)
384	! over ice of free ocean within the same atmospheric cell.cd
385	srcv(jpr_rain)%clname = 'OTotRain' ! Rain = liquid precipitation
386	srcv(jpr_snow)%clname = 'OTotSnow' ! Snow = solid precipitation
387	srcv(jpr_tevp)%clname = 'OTotEvap' ! total evaporation (over oce + ice sublimation)
388	srcv(jpr_ievp)%clname = 'OIceEvap' ! evaporation over ice = sublimation
389	srcv(jpr_sbpr)%clname = 'OSubMPre' ! sublimation - liquid precipitation - solid precipitation
390	srcv(jpr_semp)%clname = 'OISubMSn' ! ice solid water budget = sublimation - solid precipitation
391	srcv(jpr_oemp)%clname = 'OOEvaMPr' ! ocean water budget = ocean Evap - ocean precip
392	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
393	CASE( 'none' ) ! nothing to do
394	CASE( 'oce only' ) ; srcv( jpr_oemp )%laction = .TRUE.
395	CASE( 'conservative' )
396	srcv( (/jpr_rain, jpr_snow, jpr_ievp, jpr_tevp/) )%laction = .TRUE.
397	IF ( k_ice <= 1 ) srcv(jpr_ievp)%laction = .FALSE.
398	CASE( 'oce and ice' ) ; srcv( (/jpr_ievp, jpr_sbpr, jpr_semp, jpr_oemp/) )%laction = .TRUE.
399	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_emp%cldes' )
400	END SELECT
401
402	! ! ------------------------- !
403	! ! Runoffs & Calving !
404	! ! ------------------------- !
405	srcv(jpr_rnf )%clname = 'O_Runoff'
406	IF( TRIM( sn_rcv_rnf%cldes ) == 'coupled' ) THEN
407	srcv(jpr_rnf)%laction = .TRUE.
408	l_rnfcpl = .TRUE. ! -> no need to read runoffs in sbcrnf
409	ln_rnf = nn_components /= jp_iam_sas ! -> force to go through sbcrnf if not sas
410	IF(lwp) WRITE(numout,*)
411	IF(lwp) WRITE(numout,*) ' runoffs received from oasis -> force ln_rnf = ', ln_rnf
412	ENDIF
413	!
414	srcv(jpr_cal )%clname = 'OCalving' ; IF( TRIM( sn_rcv_cal%cldes ) == 'coupled' ) srcv(jpr_cal)%laction = .TRUE.
415
416	! ! ------------------------- !
417	! ! non solar radiation ! Qns
418	! ! ------------------------- !
419	srcv(jpr_qnsoce)%clname = 'O_QnsOce'
420	srcv(jpr_qnsice)%clname = 'O_QnsIce'
421	srcv(jpr_qnsmix)%clname = 'O_QnsMix'
422	SELECT CASE( TRIM( sn_rcv_qns%cldes ) )
423	CASE( 'none' ) ! nothing to do
424	CASE( 'oce only' ) ; srcv( jpr_qnsoce )%laction = .TRUE.
425	CASE( 'conservative' ) ; srcv( (/jpr_qnsice, jpr_qnsmix/) )%laction = .TRUE.
426	CASE( 'oce and ice' ) ; srcv( (/jpr_qnsice, jpr_qnsoce/) )%laction = .TRUE.
427	CASE( 'mixed oce-ice' ) ; srcv( jpr_qnsmix )%laction = .TRUE.
428	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qns%cldes' )
429	END SELECT
430	IF( TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' .AND. jpl > 1 ) &
431	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qns%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
432	! ! ------------------------- !
433	! ! solar radiation ! Qsr
434	! ! ------------------------- !
435	srcv(jpr_qsroce)%clname = 'O_QsrOce'
436	srcv(jpr_qsrice)%clname = 'O_QsrIce'
437	srcv(jpr_qsrmix)%clname = 'O_QsrMix'
438	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) )
439	CASE( 'none' ) ! nothing to do
440	CASE( 'oce only' ) ; srcv( jpr_qsroce )%laction = .TRUE.
441	CASE( 'conservative' ) ; srcv( (/jpr_qsrice, jpr_qsrmix/) )%laction = .TRUE.
442	CASE( 'oce and ice' ) ; srcv( (/jpr_qsrice, jpr_qsroce/) )%laction = .TRUE.
443	CASE( 'mixed oce-ice' ) ; srcv( jpr_qsrmix )%laction = .TRUE.
444	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qsr%cldes' )
445	END SELECT
446	IF( TRIM( sn_rcv_qsr%cldes ) == 'mixed oce-ice' .AND. jpl > 1 ) &
447	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qsr%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
448	! ! ------------------------- !
449	! ! non solar sensitivity ! d(Qns)/d(T)
450	! ! ------------------------- !
451	srcv(jpr_dqnsdt)%clname = 'O_dQnsdT'
452	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'coupled' ) srcv(jpr_dqnsdt)%laction = .TRUE.
453	!
454	! non solar sensitivity mandatory for LIM ice model
455	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. k_ice /= 0 .AND. k_ice /= 4 .AND. nn_components /= jp_iam_sas ) &
456	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_dqnsdt%cldes must be coupled in namsbc_cpl namelist' )
457	! non solar sensitivity mandatory for mixed oce-ice solar radiation coupling technique
458	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' ) &
459	CALL ctl_stop( 'sbc_cpl_init: namsbc_cpl namelist mismatch between sn_rcv_qns%cldes and sn_rcv_dqnsdt%cldes' )
460	! ! ------------------------- !
461	! ! 10m wind module !
462	! ! ------------------------- !
463	srcv(jpr_w10m)%clname = 'O_Wind10' ; IF( TRIM(sn_rcv_w10m%cldes ) == 'coupled' ) srcv(jpr_w10m)%laction = .TRUE.
464	!
465	! ! ------------------------- !
466	! ! wind stress module !
467	! ! ------------------------- !
468	srcv(jpr_taum)%clname = 'O_TauMod' ; IF( TRIM(sn_rcv_taumod%cldes) == 'coupled' ) srcv(jpr_taum)%laction = .TRUE.
469	lhftau = srcv(jpr_taum)%laction
470
471	! ! ------------------------- !
472	! ! Atmospheric CO2 !
473	! ! ------------------------- !
474	srcv(jpr_co2 )%clname = 'O_AtmCO2' ; IF( TRIM(sn_rcv_co2%cldes ) == 'coupled' ) srcv(jpr_co2 )%laction = .TRUE.
475	! ! ------------------------- !
476	! ! topmelt and botmelt !
477	! ! ------------------------- !
478	srcv(jpr_topm )%clname = 'OTopMlt'
479	srcv(jpr_botm )%clname = 'OBotMlt'
480	IF( TRIM(sn_rcv_iceflx%cldes) == 'coupled' ) THEN
481	IF ( TRIM( sn_rcv_iceflx%clcat ) == 'yes' ) THEN
482	srcv(jpr_topm:jpr_botm)%nct = jpl
483	ELSE
484	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_iceflx%clcat should always be set to yes currently' )
485	ENDIF
486	srcv(jpr_topm:jpr_botm)%laction = .TRUE.
487	ENDIF
488	! ! ------------------------------- !
489	! ! OPA-SAS coupling - rcv by opa !
490	! ! ------------------------------- !
491	srcv(jpr_sflx)%clname = 'O_SFLX'
492	srcv(jpr_fice)%clname = 'RIceFrc'
493	!
494	IF( nn_components == jp_iam_opa ) THEN ! OPA coupled to SAS via OASIS: force received field by OPA (sent by SAS)
495	srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
496	srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
497	srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
498	srcv( (/jpr_qsroce, jpr_qnsoce, jpr_oemp, jpr_sflx, jpr_fice, jpr_otx1, jpr_oty1, jpr_taum/) )%laction = .TRUE.
499	srcv(jpr_otx1)%clgrid = 'U' ! oce components given at U-point
500	srcv(jpr_oty1)%clgrid = 'V' ! and V-point
501	! Vectors: change of sign at north fold ONLY if on the local grid
502	srcv( (/jpr_otx1,jpr_oty1/) )%nsgn = -1.
503	sn_rcv_tau%clvgrd = 'U,V'
504	sn_rcv_tau%clvor = 'local grid'
505	sn_rcv_tau%clvref = 'spherical'
506	sn_rcv_emp%cldes = 'oce only'
507	!
508	IF(lwp) THEN ! control print
509	WRITE(numout,*)
510	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
511	WRITE(numout,*)' OPA component '
512	WRITE(numout,*)
513	WRITE(numout,*)' received fields from SAS component '
514	WRITE(numout,*)' ice cover '
515	WRITE(numout,*)' oce only EMP '
516	WRITE(numout,*)' salt flux '
517	WRITE(numout,*)' mixed oce-ice solar flux '
518	WRITE(numout,*)' mixed oce-ice non solar flux '
519	WRITE(numout,*)' wind stress U,V on local grid and sperical coordinates '
520	WRITE(numout,*)' wind stress module'
521	WRITE(numout,*)
522	ENDIF
523	ENDIF
524	! ! -------------------------------- !
525	! ! OPA-SAS coupling - rcv by sas !
526	! ! -------------------------------- !
527	srcv(jpr_toce )%clname = 'I_SSTSST'
528	srcv(jpr_soce )%clname = 'I_SSSal'
529	srcv(jpr_ocx1 )%clname = 'I_OCurx1'
530	srcv(jpr_ocy1 )%clname = 'I_OCury1'
531	srcv(jpr_ssh )%clname = 'I_SSHght'
532	srcv(jpr_e3t1st)%clname = 'I_E3T1st'
533	srcv(jpr_fraqsr)%clname = 'I_FraQsr'
534	!
535	IF( nn_components == jp_iam_sas ) THEN
536	IF( .NOT. ln_cpl ) srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
537	IF( .NOT. ln_cpl ) srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
538	IF( .NOT. ln_cpl ) srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
539	srcv( (/jpr_toce, jpr_soce, jpr_ssh, jpr_fraqsr, jpr_ocx1, jpr_ocy1/) )%laction = .TRUE.
540	srcv( jpr_e3t1st )%laction = lk_vvl
541	srcv(jpr_ocx1)%clgrid = 'U' ! oce components given at U-point
542	srcv(jpr_ocy1)%clgrid = 'V' ! and V-point
543	! Vectors: change of sign at north fold ONLY if on the local grid
544	srcv(jpr_ocx1:jpr_ocy1)%nsgn = -1.
545	! Change first letter to couple with atmosphere if already coupled OPA
546	! this is nedeed as each variable name used in the namcouple must be unique:
547	! for example O_Runoff received by OPA from SAS and therefore O_Runoff received by SAS from the Atmosphere
548	DO jn = 1, jprcv
549	IF ( srcv(jn)%clname(1:1) == "O" ) srcv(jn)%clname = "S"//srcv(jn)%clname(2:LEN(srcv(jn)%clname))
550	END DO
551	!
552	IF(lwp) THEN ! control print
553	WRITE(numout,*)
554	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
555	WRITE(numout,*)' SAS component '
556	WRITE(numout,*)
557	IF( .NOT. ln_cpl ) THEN
558	WRITE(numout,*)' received fields from OPA component '
559	ELSE
560	WRITE(numout,*)' Additional received fields from OPA component : '
561	ENDIF
562	WRITE(numout,*)' sea surface temperature (Celcius) '
563	WRITE(numout,*)' sea surface salinity '
564	WRITE(numout,*)' surface currents '
565	WRITE(numout,*)' sea surface height '
566	WRITE(numout,*)' thickness of first ocean T level '
567	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
568	WRITE(numout,*)
569	ENDIF
570	ENDIF
571
572	! =================================================== !
573	! Allocate all parts of frcv used for received fields !
574	! =================================================== !
575	DO jn = 1, jprcv
576	IF ( srcv(jn)%laction ) ALLOCATE( frcv(jn)%z3(jpi,jpj,srcv(jn)%nct) )
577	END DO
578	! Allocate taum part of frcv which is used even when not received as coupling field
579	IF ( .NOT. srcv(jpr_taum)%laction ) ALLOCATE( frcv(jpr_taum)%z3(jpi,jpj,srcv(jpr_taum)%nct) )
580	! Allocate w10m part of frcv which is used even when not received as coupling field
581	IF ( .NOT. srcv(jpr_w10m)%laction ) ALLOCATE( frcv(jpr_w10m)%z3(jpi,jpj,srcv(jpr_w10m)%nct) )
582	! Allocate jpr_otx1 part of frcv which is used even when not received as coupling field
583	IF ( .NOT. srcv(jpr_otx1)%laction ) ALLOCATE( frcv(jpr_otx1)%z3(jpi,jpj,srcv(jpr_otx1)%nct) )
584	IF ( .NOT. srcv(jpr_oty1)%laction ) ALLOCATE( frcv(jpr_oty1)%z3(jpi,jpj,srcv(jpr_oty1)%nct) )
585	! Allocate itx1 and ity1 as they are used in sbc_cpl_ice_tau even if srcv(jpr_itx1)%laction = .FALSE.
586	IF( k_ice /= 0 ) THEN
587	IF ( .NOT. srcv(jpr_itx1)%laction ) ALLOCATE( frcv(jpr_itx1)%z3(jpi,jpj,srcv(jpr_itx1)%nct) )
588	IF ( .NOT. srcv(jpr_ity1)%laction ) ALLOCATE( frcv(jpr_ity1)%z3(jpi,jpj,srcv(jpr_ity1)%nct) )
589	END IF
590
591	! ================================ !
592	! Define the send interface !
593	! ================================ !
594	! for each field: define the OASIS name (ssnd(:)%clname)
595	! define send or not from the namelist parameters (ssnd(:)%laction)
596	! define the north fold type of lbc (ssnd(:)%nsgn)
597
598	! default definitions of nsnd
599	ssnd(:)%laction = .FALSE. ; ssnd(:)%clgrid = 'T' ; ssnd(:)%nsgn = 1. ; ssnd(:)%nct = 1
600
601	! ! ------------------------- !
602	! ! Surface temperature !
603	! ! ------------------------- !
604	ssnd(jps_toce)%clname = 'O_SSTSST'
605	ssnd(jps_tice)%clname = 'O_TepIce'
606	ssnd(jps_tmix)%clname = 'O_TepMix'
607	SELECT CASE( TRIM( sn_snd_temp%cldes ) )
608	CASE( 'none' ) ! nothing to do
609	CASE( 'oce only' ) ; ssnd( jps_toce )%laction = .TRUE.
610	CASE( 'oce and ice' , 'weighted oce and ice' )
611	ssnd( (/jps_toce, jps_tice/) )%laction = .TRUE.
612	IF ( TRIM( sn_snd_temp%clcat ) == 'yes' ) ssnd(jps_tice)%nct = jpl
613	CASE( 'mixed oce-ice' ) ; ssnd( jps_tmix )%laction = .TRUE.
614	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_temp%cldes' )
615	END SELECT
616
617	! ! ------------------------- !
618	! ! Albedo !
619	! ! ------------------------- !
620	ssnd(jps_albice)%clname = 'O_AlbIce'
621	ssnd(jps_albmix)%clname = 'O_AlbMix'
622	SELECT CASE( TRIM( sn_snd_alb%cldes ) )
623	CASE( 'none' ) ! nothing to do
624	CASE( 'ice' , 'weighted ice' ) ; ssnd(jps_albice)%laction = .TRUE.
625	CASE( 'mixed oce-ice' ) ; ssnd(jps_albmix)%laction = .TRUE.
626	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_alb%cldes' )
627	END SELECT
628	!
629	! Need to calculate oceanic albedo if
630	! 1. sending mixed oce-ice albedo or
631	! 2. receiving mixed oce-ice solar radiation
632	IF ( TRIM ( sn_snd_alb%cldes ) == 'mixed oce-ice' .OR. TRIM ( sn_rcv_qsr%cldes ) == 'mixed oce-ice' ) THEN
633	CALL albedo_oce( zaos, zacs )
634	! Due to lack of information on nebulosity : mean clear/overcast sky
635	albedo_oce_mix(:,:) = ( zacs(:,:) + zaos(:,:) ) * 0.5
636	ENDIF
637
638	! ! ------------------------- !
639	! ! Ice fraction & Thickness !
640	! ! ------------------------- !
641	ssnd(jps_fice)%clname = 'OIceFrc'
642	ssnd(jps_hice)%clname = 'OIceTck'
643	ssnd(jps_hsnw)%clname = 'OSnwTck'
644	IF( k_ice /= 0 ) THEN
645	ssnd(jps_fice)%laction = .TRUE. ! if ice treated in the ocean (even in climato case)
646	! Currently no namelist entry to determine sending of multi-category ice fraction so use the thickness entry for now
647	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_fice)%nct = jpl
648	ENDIF
649
650	SELECT CASE ( TRIM( sn_snd_thick%cldes ) )
651	CASE( 'none' ) ! nothing to do
652	CASE( 'ice and snow' )
653	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
654	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) THEN
655	ssnd(jps_hice:jps_hsnw)%nct = jpl
656	ENDIF
657	CASE ( 'weighted ice and snow' )
658	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
659	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice:jps_hsnw)%nct = jpl
660	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_thick%cldes' )
661	END SELECT
662
663	! ! ------------------------- !
664	! ! Surface current !
665	! ! ------------------------- !
666	! ocean currents ! ice velocities
667	ssnd(jps_ocx1)%clname = 'O_OCurx1' ; ssnd(jps_ivx1)%clname = 'O_IVelx1'
668	ssnd(jps_ocy1)%clname = 'O_OCury1' ; ssnd(jps_ivy1)%clname = 'O_IVely1'
669	ssnd(jps_ocz1)%clname = 'O_OCurz1' ; ssnd(jps_ivz1)%clname = 'O_IVelz1'
670	!
671	ssnd(jps_ocx1:jps_ivz1)%nsgn = -1. ! vectors: change of the sign at the north fold
672
673	IF( sn_snd_crt%clvgrd == 'U,V' ) THEN
674	ssnd(jps_ocx1)%clgrid = 'U' ; ssnd(jps_ocy1)%clgrid = 'V'
675	ELSE IF( sn_snd_crt%clvgrd /= 'T' ) THEN
676	CALL ctl_stop( 'sn_snd_crt%clvgrd must be equal to T' )
677	ssnd(jps_ocx1:jps_ivz1)%clgrid = 'T' ! all oce and ice components on the same unique grid
678	ENDIF
679	ssnd(jps_ocx1:jps_ivz1)%laction = .TRUE. ! default: all are send
680	IF( TRIM( sn_snd_crt%clvref ) == 'spherical' ) ssnd( (/jps_ocz1, jps_ivz1/) )%laction = .FALSE.
681	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) ssnd(jps_ocx1:jps_ivz1)%nsgn = 1.
682	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
683	CASE( 'none' ) ; ssnd(jps_ocx1:jps_ivz1)%laction = .FALSE.
684	CASE( 'oce only' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
685	CASE( 'weighted oce and ice' ) ! nothing to do
686	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
687	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crt%cldes' )
688	END SELECT
689
690	! ! ------------------------- !
691	! ! CO2 flux !
692	! ! ------------------------- !
693	ssnd(jps_co2)%clname = 'O_CO2FLX' ; IF( TRIM(sn_snd_co2%cldes) == 'coupled' ) ssnd(jps_co2 )%laction = .TRUE.
694
695	! ! ------------------------------- !
696	! ! OPA-SAS coupling - snd by opa !
697	! ! ------------------------------- !
698	ssnd(jps_ssh )%clname = 'O_SSHght'
699	ssnd(jps_soce )%clname = 'O_SSSal'
700	ssnd(jps_e3t1st)%clname = 'O_E3T1st'
701	ssnd(jps_fraqsr)%clname = 'O_FraQsr'
702	!
703	IF( nn_components == jp_iam_opa ) THEN
704	ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
705	ssnd( (/jps_toce, jps_soce, jps_ssh, jps_fraqsr, jps_ocx1, jps_ocy1/) )%laction = .TRUE.
706	ssnd( jps_e3t1st )%laction = lk_vvl
707	! vector definition: not used but cleaner...
708	ssnd(jps_ocx1)%clgrid = 'U' ! oce components given at U-point
709	ssnd(jps_ocy1)%clgrid = 'V' ! and V-point
710	sn_snd_crt%clvgrd = 'U,V'
711	sn_snd_crt%clvor = 'local grid'
712	sn_snd_crt%clvref = 'spherical'
713	!
714	IF(lwp) THEN ! control print
715	WRITE(numout,*)
716	WRITE(numout,*)' sent fields to SAS component '
717	WRITE(numout,*)' sea surface temperature (T before, Celcius) '
718	WRITE(numout,*)' sea surface salinity '
719	WRITE(numout,*)' surface currents U,V on local grid and spherical coordinates'
720	WRITE(numout,*)' sea surface height '
721	WRITE(numout,*)' thickness of first ocean T level '
722	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
723	WRITE(numout,*)
724	ENDIF
725	ENDIF
726	! ! ------------------------------- !
727	! ! OPA-SAS coupling - snd by sas !
728	! ! ------------------------------- !
729	ssnd(jps_sflx )%clname = 'I_SFLX'
730	ssnd(jps_fice2 )%clname = 'IIceFrc'
731	ssnd(jps_qsroce)%clname = 'I_QsrOce'
732	ssnd(jps_qnsoce)%clname = 'I_QnsOce'
733	ssnd(jps_oemp )%clname = 'IOEvaMPr'
734	ssnd(jps_otx1 )%clname = 'I_OTaux1'
735	ssnd(jps_oty1 )%clname = 'I_OTauy1'
736	ssnd(jps_rnf )%clname = 'I_Runoff'
737	ssnd(jps_taum )%clname = 'I_TauMod'
738	!
739	IF( nn_components == jp_iam_sas ) THEN
740	IF( .NOT. ln_cpl ) ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
741	ssnd( (/jps_qsroce, jps_qnsoce, jps_oemp, jps_fice2, jps_sflx, jps_otx1, jps_oty1, jps_taum/) )%laction = .TRUE.
742	!
743	! Change first letter to couple with atmosphere if already coupled with sea_ice
744	! this is nedeed as each variable name used in the namcouple must be unique:
745	! for example O_SSTSST sent by OPA to SAS and therefore S_SSTSST sent by SAS to the Atmosphere
746	DO jn = 1, jpsnd
747	IF ( ssnd(jn)%clname(1:1) == "O" ) ssnd(jn)%clname = "S"//ssnd(jn)%clname(2:LEN(ssnd(jn)%clname))
748	END DO
749	!
750	IF(lwp) THEN ! control print
751	WRITE(numout,*)
752	IF( .NOT. ln_cpl ) THEN
753	WRITE(numout,*)' sent fields to OPA component '
754	ELSE
755	WRITE(numout,*)' Additional sent fields to OPA component : '
756	ENDIF
757	WRITE(numout,*)' ice cover '
758	WRITE(numout,*)' oce only EMP '
759	WRITE(numout,*)' salt flux '
760	WRITE(numout,*)' mixed oce-ice solar flux '
761	WRITE(numout,*)' mixed oce-ice non solar flux '
762	WRITE(numout,*)' wind stress U,V components'
763	WRITE(numout,*)' wind stress module'
764	ENDIF
765	ENDIF
766
767	!
768	! ================================ !
769	! initialisation of the coupler !
770	! ================================ !
771
772	CALL cpl_define(jprcv, jpsnd, nn_cplmodel)
773
774	IF (ln_usecplmask) THEN
775	xcplmask(:,:,:) = 0.
776	CALL iom_open( 'cplmask', inum )
777	CALL iom_get( inum, jpdom_unknown, 'cplmask', xcplmask(1:nlci,1:nlcj,1:nn_cplmodel), &
778	& kstart = (/ mig(1),mjg(1),1 /), kcount = (/ nlci,nlcj,nn_cplmodel /) )
779	CALL iom_close( inum )
780	ELSE
781	xcplmask(:,:,:) = 1.
782	ENDIF
783	xcplmask(:,:,0) = 1. - SUM( xcplmask(:,:,1:nn_cplmodel), dim = 3 )
784	!
785	ncpl_qsr_freq = cpl_freq( 'O_QsrOce' ) + cpl_freq( 'O_QsrMix' ) + cpl_freq( 'I_QsrOce' ) + cpl_freq( 'I_QsrMix' )
786	IF( ln_dm2dc .AND. ln_cpl .AND. ncpl_qsr_freq /= 86400 ) &
787	& CALL ctl_stop( 'sbc_cpl_init: diurnal cycle reconstruction (ln_dm2dc) needs daily couping for solar radiation' )
788	ncpl_qsr_freq = 86400 / ncpl_qsr_freq
789
790	CALL wrk_dealloc( jpi,jpj, zacs, zaos )
791	!
792	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_init')
793	!
794	END SUBROUTINE sbc_cpl_init
795
796
797	SUBROUTINE sbc_cpl_rcv( kt, k_fsbc, k_ice )
798	!!----------------------------------------------------------------------
799	!! * ROUTINE sbc_cpl_rcv *
800	!!
801	!! ** Purpose : provide the stress over the ocean and, if no sea-ice,
802	!! provide the ocean heat and freshwater fluxes.
803	!!
804	!! ** Method : - Receive all the atmospheric fields (stored in frcv array). called at each time step.
805	!! OASIS controls if there is something do receive or not. nrcvinfo contains the info
806	!! to know if the field was really received or not
807	!!
808	!! --> If ocean stress was really received:
809	!!
810	!! - transform the received ocean stress vector from the received
811	!! referential and grid into an atmosphere-ocean stress in
812	!! the (i,j) ocean referencial and at the ocean velocity point.
813	!! The received stress are :
814	!! - defined by 3 components (if cartesian coordinate)
815	!! or by 2 components (if spherical)
816	!! - oriented along geographical coordinate (if eastward-northward)
817	!! or along the local grid coordinate (if local grid)
818	!! - given at U- and V-point, resp. if received on 2 grids
819	!! or at T-point if received on 1 grid
820	!! Therefore and if necessary, they are successively
821	!! processed in order to obtain them
822	!! first as 2 components on the sphere
823	!! second as 2 components oriented along the local grid
824	!! third as 2 components on the U,V grid
825	!!
826	!! -->
827	!!
828	!! - In 'ocean only' case, non solar and solar ocean heat fluxes
829	!! and total ocean freshwater fluxes
830	!!
831	!! ** Method : receive all fields from the atmosphere and transform
832	!! them into ocean surface boundary condition fields
833	!!
834	!! ** Action : update utau, vtau ocean stress at U,V grid
835	!! taum wind stress module at T-point
836	!! wndm wind speed module at T-point over free ocean or leads in presence of sea-ice
837	!! qns non solar heat fluxes including emp heat content (ocean only case)
838	!! and the latent heat flux of solid precip. melting
839	!! qsr solar ocean heat fluxes (ocean only case)
840	!! emp upward mass flux [evap. - precip. (- runoffs) (- calving)] (ocean only case)
841	!!----------------------------------------------------------------------
842	INTEGER, INTENT(in) :: kt ! ocean model time step index
843	INTEGER, INTENT(in) :: k_fsbc ! frequency of sbc (-> ice model) computation
844	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
845
846	!!
847	LOGICAL :: llnewtx, llnewtau ! update wind stress components and module??
848	INTEGER :: ji, jj, jn ! dummy loop indices
849	INTEGER :: isec ! number of seconds since nit000 (assuming rdttra did not change since nit000)
850	REAL(wp) :: zcumulneg, zcumulpos ! temporary scalars
851	REAL(wp) :: zcoef ! temporary scalar
852	REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3
853	REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient
854	REAL(wp) :: zzx, zzy ! temporary variables
855	REAL(wp), POINTER, DIMENSION(:,:) :: ztx, zty, zmsk, zemp, zqns, zqsr
856	!!----------------------------------------------------------------------
857	!
858	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_rcv')
859	!
860	CALL wrk_alloc( jpi,jpj, ztx, zty, zmsk, zemp, zqns, zqsr )
861	!
862	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
863	!
864	! ! ======================================================= !
865	! ! Receive all the atmos. fields (including ice information)
866	! ! ======================================================= !
867	isec = ( kt - nit000 ) * NINT( rdttra(1) ) ! date of exchanges
868	DO jn = 1, jprcv ! received fields sent by the atmosphere
869	IF( srcv(jn)%laction ) CALL cpl_rcv( jn, isec, frcv(jn)%z3, xcplmask(:,:,1:nn_cplmodel), nrcvinfo(jn) )
870	END DO
871
872	! ! ========================= !
873	IF( srcv(jpr_otx1)%laction ) THEN ! ocean stress components !
874	! ! ========================= !
875	! define frcv(jpr_otx1)%z3(:,:,1) and frcv(jpr_oty1)%z3(:,:,1): stress at U/V point along model grid
876	! => need to be done only when we receive the field
877	IF( nrcvinfo(jpr_otx1) == OASIS_Rcv ) THEN
878	!
879	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
880	! ! (cartesian to spherical -> 3 to 2 components)
881	!
882	CALL geo2oce( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), frcv(jpr_otz1)%z3(:,:,1), &
883	& srcv(jpr_otx1)%clgrid, ztx, zty )
884	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
885	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
886	!
887	IF( srcv(jpr_otx2)%laction ) THEN
888	CALL geo2oce( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), frcv(jpr_otz2)%z3(:,:,1), &
889	& srcv(jpr_otx2)%clgrid, ztx, zty )
890	frcv(jpr_otx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
891	frcv(jpr_oty2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
892	ENDIF
893	!
894	ENDIF
895	!
896	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
897	! ! (geographical to local grid -> rotate the components)
898	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->i', ztx )
899	IF( srcv(jpr_otx2)%laction ) THEN
900	CALL rot_rep( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), srcv(jpr_otx2)%clgrid, 'en->j', zty )
901	ELSE
902	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->j', zty )
903	ENDIF
904	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
905	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 2nd grid
906	ENDIF
907	!
908	IF( srcv(jpr_otx1)%clgrid == 'T' ) THEN
909	DO jj = 2, jpjm1 ! T ==> (U,V)
910	DO ji = fs_2, fs_jpim1 ! vector opt.
911	frcv(jpr_otx1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_otx1)%z3(ji+1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1) )
912	frcv(jpr_oty1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_oty1)%z3(ji ,jj+1,1) + frcv(jpr_oty1)%z3(ji,jj,1) )
913	END DO
914	END DO
915	CALL lbc_lnk( frcv(jpr_otx1)%z3(:,:,1), 'U', -1. ) ; CALL lbc_lnk( frcv(jpr_oty1)%z3(:,:,1), 'V', -1. )
916	ENDIF
917	llnewtx = .TRUE.
918	ELSE
919	llnewtx = .FALSE.
920	ENDIF
921	! ! ========================= !
922	ELSE ! No dynamical coupling !
923	! ! ========================= !
924	frcv(jpr_otx1)%z3(:,:,1) = 0.e0 ! here simply set to zero
925	frcv(jpr_oty1)%z3(:,:,1) = 0.e0 ! an external read in a file can be added instead
926	llnewtx = .TRUE.
927	!
928	ENDIF
929	! ! ========================= !
930	! ! wind stress module ! (taum)
931	! ! ========================= !
932	!
933	IF( .NOT. srcv(jpr_taum)%laction ) THEN ! compute wind stress module from its components if not received
934	! => need to be done only when otx1 was changed
935	IF( llnewtx ) THEN
936	!CDIR NOVERRCHK
937	DO jj = 2, jpjm1
938	!CDIR NOVERRCHK
939	DO ji = fs_2, fs_jpim1 ! vect. opt.
940	zzx = frcv(jpr_otx1)%z3(ji-1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1)
941	zzy = frcv(jpr_oty1)%z3(ji ,jj-1,1) + frcv(jpr_oty1)%z3(ji,jj,1)
942	frcv(jpr_taum)%z3(ji,jj,1) = 0.5 * SQRT( zzx * zzx + zzy * zzy )
943	END DO
944	END DO
945	CALL lbc_lnk( frcv(jpr_taum)%z3(:,:,1), 'T', 1. )
946	llnewtau = .TRUE.
947	ELSE
948	llnewtau = .FALSE.
949	ENDIF
950	ELSE
951	llnewtau = nrcvinfo(jpr_taum) == OASIS_Rcv
952	! Stress module can be negative when received (interpolation problem)
953	IF( llnewtau ) THEN
954	frcv(jpr_taum)%z3(:,:,1) = MAX( 0._wp, frcv(jpr_taum)%z3(:,:,1) )
955	ENDIF
956	ENDIF
957	!
958	! ! ========================= !
959	! ! 10 m wind speed ! (wndm)
960	! ! ========================= !
961	!
962	IF( .NOT. srcv(jpr_w10m)%laction ) THEN ! compute wind spreed from wind stress module if not received
963	! => need to be done only when taumod was changed
964	IF( llnewtau ) THEN
965	zcoef = 1. / ( zrhoa * zcdrag )
966	!CDIR NOVERRCHK
967	DO jj = 1, jpj
968	!CDIR NOVERRCHK
969	DO ji = 1, jpi
970	frcv(jpr_w10m)%z3(ji,jj,1) = SQRT( frcv(jpr_taum)%z3(ji,jj,1) * zcoef )
971	END DO
972	END DO
973	ENDIF
974	ENDIF
975
976	! u(v)tau and taum will be modified by ice model
977	! -> need to be reset before each call of the ice/fsbc
978	IF( MOD( kt-1, k_fsbc ) == 0 ) THEN
979	!
980	IF( ln_mixcpl ) THEN
981	utau(:,:) = utau(:,:) * xcplmask(:,:,0) + frcv(jpr_otx1)%z3(:,:,1) * zmsk(:,:)
982	vtau(:,:) = vtau(:,:) * xcplmask(:,:,0) + frcv(jpr_oty1)%z3(:,:,1) * zmsk(:,:)
983	taum(:,:) = taum(:,:) * xcplmask(:,:,0) + frcv(jpr_taum)%z3(:,:,1) * zmsk(:,:)
984	wndm(:,:) = wndm(:,:) * xcplmask(:,:,0) + frcv(jpr_w10m)%z3(:,:,1) * zmsk(:,:)
985	ELSE
986	utau(:,:) = frcv(jpr_otx1)%z3(:,:,1)
987	vtau(:,:) = frcv(jpr_oty1)%z3(:,:,1)
988	taum(:,:) = frcv(jpr_taum)%z3(:,:,1)
989	wndm(:,:) = frcv(jpr_w10m)%z3(:,:,1)
990	ENDIF
991	CALL iom_put( "taum_oce", taum ) ! output wind stress module
992	!
993	ENDIF
994
995	#if defined key_cpl_carbon_cycle
996	! ! ================== !
997	! ! atmosph. CO2 (ppm) !
998	! ! ================== !
999	IF( srcv(jpr_co2)%laction ) atm_co2(:,:) = frcv(jpr_co2)%z3(:,:,1)
1000	#endif
1001
1002	! Fields received by SAS when OASIS coupling
1003	! (arrays no more filled at sbcssm stage)
1004	! ! ================== !
1005	! ! SSS !
1006	! ! ================== !
1007	IF( srcv(jpr_soce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1008	sss_m(:,:) = frcv(jpr_soce)%z3(:,:,1)
1009	CALL iom_put( 'sss_m', sss_m )
1010	ENDIF
1011	!
1012	! ! ================== !
1013	! ! SST !
1014	! ! ================== !
1015	IF( srcv(jpr_toce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1016	sst_m(:,:) = frcv(jpr_toce)%z3(:,:,1)
1017	IF( srcv(jpr_soce)%laction .AND. ln_useCT ) THEN ! make sure that sst_m is the potential temperature
1018	sst_m(:,:) = eos_pt_from_ct( sst_m(:,:), sss_m(:,:) )
1019	ENDIF
1020	ENDIF
1021	! ! ================== !
1022	! ! SSH !
1023	! ! ================== !
1024	IF( srcv(jpr_ssh )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1025	ssh_m(:,:) = frcv(jpr_ssh )%z3(:,:,1)
1026	CALL iom_put( 'ssh_m', ssh_m )
1027	ENDIF
1028	! ! ================== !
1029	! ! surface currents !
1030	! ! ================== !
1031	IF( srcv(jpr_ocx1)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1032	ssu_m(:,:) = frcv(jpr_ocx1)%z3(:,:,1)
1033	ub (:,:,1) = ssu_m(:,:) ! will be used in sbcice_lim in the call of lim_sbc_tau
1034	CALL iom_put( 'ssu_m', ssu_m )
1035	ENDIF
1036	IF( srcv(jpr_ocy1)%laction ) THEN
1037	ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
1038	vb (:,:,1) = ssv_m(:,:) ! will be used in sbcice_lim in the call of lim_sbc_tau
1039	CALL iom_put( 'ssv_m', ssv_m )
1040	ENDIF
1041	! ! ======================== !
1042	! ! first T level thickness !
1043	! ! ======================== !
1044	IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1045	e3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
1046	CALL iom_put( 'e3t_m', e3t_m(:,:) )
1047	ENDIF
1048	! ! ================================ !
1049	! ! fraction of solar net radiation !
1050	! ! ================================ !
1051	IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1052	frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
1053	CALL iom_put( 'frq_m', frq_m )
1054	ENDIF
1055
1056	! ! ========================= !
1057	IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
1058	! ! ========================= !
1059	!
1060	! ! total freshwater fluxes over the ocean (emp)
1061	IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
1062	SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
1063	CASE( 'conservative' )
1064	zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
1065	CASE( 'oce only', 'oce and ice' )
1066	zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
1067	CASE default
1068	CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
1069	END SELECT
1070	ELSE
1071	zemp(:,:) = 0._wp
1072	ENDIF
1073	!
1074	! ! runoffs and calving (added in emp)
1075	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1076	IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
1077
1078	IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
1079	ELSE ; emp(:,:) = zemp(:,:)
1080	ENDIF
1081	!
1082	! ! non solar heat flux over the ocean (qns)
1083	IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1084	ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1085	ELSE ; zqns(:,:) = 0._wp
1086	END IF
1087	! update qns over the free ocean with:
1088	IF( nn_components /= jp_iam_opa ) THEN
1089	zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
1090	IF( srcv(jpr_snow )%laction ) THEN
1091	zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * lfus ! energy for melting solid precipitation over the free ocean
1092	ENDIF
1093	ENDIF
1094	IF( ln_mixcpl ) THEN ; qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
1095	ELSE ; qns(:,:) = zqns(:,:)
1096	ENDIF
1097
1098	! ! solar flux over the ocean (qsr)
1099	IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
1100	ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
1101	ELSE ; zqsr(:,:) = 0._wp
1102	ENDIF
1103	IF( ln_dm2dc .AND. ln_cpl ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
1104	IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
1105	ELSE ; qsr(:,:) = zqsr(:,:)
1106	ENDIF
1107	!
1108	! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
1109	IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
1110	! Ice cover (received by opa in case of opa <-> sas coupling)
1111	IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
1112	!
1113
1114	ENDIF
1115	!
1116	CALL wrk_dealloc( jpi,jpj, ztx, zty, zmsk, zemp, zqns, zqsr )
1117	!
1118	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_rcv')
1119	!
1120	END SUBROUTINE sbc_cpl_rcv
1121
1122
1123	SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
1124	!!----------------------------------------------------------------------
1125	!! * ROUTINE sbc_cpl_ice_tau *
1126	!!
1127	!! ** Purpose : provide the stress over sea-ice in coupled mode
1128	!!
1129	!! ** Method : transform the received stress from the atmosphere into
1130	!! an atmosphere-ice stress in the (i,j) ocean referencial
1131	!! and at the velocity point of the sea-ice model (cp_ice_msh):
1132	!! 'C'-grid : i- (j-) components given at U- (V-) point
1133	!! 'I'-grid : B-grid lower-left corner: both components given at I-point
1134	!!
1135	!! The received stress are :
1136	!! - defined by 3 components (if cartesian coordinate)
1137	!! or by 2 components (if spherical)
1138	!! - oriented along geographical coordinate (if eastward-northward)
1139	!! or along the local grid coordinate (if local grid)
1140	!! - given at U- and V-point, resp. if received on 2 grids
1141	!! or at a same point (T or I) if received on 1 grid
1142	!! Therefore and if necessary, they are successively
1143	!! processed in order to obtain them
1144	!! first as 2 components on the sphere
1145	!! second as 2 components oriented along the local grid
1146	!! third as 2 components on the cp_ice_msh point
1147	!!
1148	!! Except in 'oce and ice' case, only one vector stress field
1149	!! is received. It has already been processed in sbc_cpl_rcv
1150	!! so that it is now defined as (i,j) components given at U-
1151	!! and V-points, respectively. Therefore, only the third
1152	!! transformation is done and only if the ice-grid is a 'I'-grid.
1153	!!
1154	!! ** Action : return ptau_i, ptau_j, the stress over the ice at cp_ice_msh point
1155	!!----------------------------------------------------------------------
1156	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
1157	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
1158	!!
1159	INTEGER :: ji, jj ! dummy loop indices
1160	INTEGER :: itx ! index of taux over ice
1161	REAL(wp), POINTER, DIMENSION(:,:) :: ztx, zty
1162	!!----------------------------------------------------------------------
1163	!
1164	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_ice_tau')
1165	!
1166	CALL wrk_alloc( jpi,jpj, ztx, zty )
1167
1168	IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
1169	ELSE ; itx = jpr_otx1
1170	ENDIF
1171
1172	! do something only if we just received the stress from atmosphere
1173	IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
1174
1175	! ! ======================= !
1176	IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
1177	! ! ======================= !
1178	!
1179	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1180	! ! (cartesian to spherical -> 3 to 2 components)
1181	CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
1182	& srcv(jpr_itx1)%clgrid, ztx, zty )
1183	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1184	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1185	!
1186	IF( srcv(jpr_itx2)%laction ) THEN
1187	CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
1188	& srcv(jpr_itx2)%clgrid, ztx, zty )
1189	frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1190	frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1191	ENDIF
1192	!
1193	ENDIF
1194	!
1195	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1196	! ! (geographical to local grid -> rotate the components)
1197	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
1198	IF( srcv(jpr_itx2)%laction ) THEN
1199	CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
1200	ELSE
1201	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
1202	ENDIF
1203	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1204	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
1205	ENDIF
1206	! ! ======================= !
1207	ELSE ! use ocean stress !
1208	! ! ======================= !
1209	frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
1210	frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
1211	!
1212	ENDIF
1213	! ! ======================= !
1214	! ! put on ice grid !
1215	! ! ======================= !
1216	!
1217	! j+1 j -----V---F
1218	! ice stress on ice velocity point (cp_ice_msh) ! \|
1219	! (C-grid ==>(U,V) or B-grid ==> I or F) j \| T U
1220	! \| \|
1221	! j j-1 -I-------\|
1222	! (for I) \| \|
1223	! i-1 i i
1224	! i i+1 (for I)
1225	SELECT CASE ( cp_ice_msh )
1226	!
1227	CASE( 'I' ) ! B-grid ==> I
1228	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1229	CASE( 'U' )
1230	DO jj = 2, jpjm1 ! (U,V) ==> I
1231	DO ji = 2, jpim1 ! NO vector opt.
1232	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji-1,jj ,1) + frcv(jpr_itx1)%z3(ji-1,jj-1,1) )
1233	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji ,jj-1,1) + frcv(jpr_ity1)%z3(ji-1,jj-1,1) )
1234	END DO
1235	END DO
1236	CASE( 'F' )
1237	DO jj = 2, jpjm1 ! F ==> I
1238	DO ji = 2, jpim1 ! NO vector opt.
1239	p_taui(ji,jj) = frcv(jpr_itx1)%z3(ji-1,jj-1,1)
1240	p_tauj(ji,jj) = frcv(jpr_ity1)%z3(ji-1,jj-1,1)
1241	END DO
1242	END DO
1243	CASE( 'T' )
1244	DO jj = 2, jpjm1 ! T ==> I
1245	DO ji = 2, jpim1 ! NO vector opt.
1246	p_taui(ji,jj) = 0.25 * ( frcv(jpr_itx1)%z3(ji,jj ,1) + frcv(jpr_itx1)%z3(ji-1,jj ,1) &
1247	& + frcv(jpr_itx1)%z3(ji,jj-1,1) + frcv(jpr_itx1)%z3(ji-1,jj-1,1) )
1248	p_tauj(ji,jj) = 0.25 * ( frcv(jpr_ity1)%z3(ji,jj ,1) + frcv(jpr_ity1)%z3(ji-1,jj ,1) &
1249	& + frcv(jpr_oty1)%z3(ji,jj-1,1) + frcv(jpr_ity1)%z3(ji-1,jj-1,1) )
1250	END DO
1251	END DO
1252	CASE( 'I' )
1253	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! I ==> I
1254	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1255	END SELECT
1256	IF( srcv(jpr_itx1)%clgrid /= 'I' ) THEN
1257	CALL lbc_lnk( p_taui, 'I', -1. ) ; CALL lbc_lnk( p_tauj, 'I', -1. )
1258	ENDIF
1259	!
1260	CASE( 'F' ) ! B-grid ==> F
1261	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1262	CASE( 'U' )
1263	DO jj = 2, jpjm1 ! (U,V) ==> F
1264	DO ji = fs_2, fs_jpim1 ! vector opt.
1265	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji,jj,1) + frcv(jpr_itx1)%z3(ji ,jj+1,1) )
1266	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji,jj,1) + frcv(jpr_ity1)%z3(ji+1,jj ,1) )
1267	END DO
1268	END DO
1269	CASE( 'I' )
1270	DO jj = 2, jpjm1 ! I ==> F
1271	DO ji = 2, jpim1 ! NO vector opt.
1272	p_taui(ji,jj) = frcv(jpr_itx1)%z3(ji+1,jj+1,1)
1273	p_tauj(ji,jj) = frcv(jpr_ity1)%z3(ji+1,jj+1,1)
1274	END DO
1275	END DO
1276	CASE( 'T' )
1277	DO jj = 2, jpjm1 ! T ==> F
1278	DO ji = 2, jpim1 ! NO vector opt.
1279	p_taui(ji,jj) = 0.25 * ( frcv(jpr_itx1)%z3(ji,jj ,1) + frcv(jpr_itx1)%z3(ji+1,jj ,1) &
1280	& + frcv(jpr_itx1)%z3(ji,jj+1,1) + frcv(jpr_itx1)%z3(ji+1,jj+1,1) )
1281	p_tauj(ji,jj) = 0.25 * ( frcv(jpr_ity1)%z3(ji,jj ,1) + frcv(jpr_ity1)%z3(ji+1,jj ,1) &
1282	& + frcv(jpr_ity1)%z3(ji,jj+1,1) + frcv(jpr_ity1)%z3(ji+1,jj+1,1) )
1283	END DO
1284	END DO
1285	CASE( 'F' )
1286	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! F ==> F
1287	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1288	END SELECT
1289	IF( srcv(jpr_itx1)%clgrid /= 'F' ) THEN
1290	CALL lbc_lnk( p_taui, 'F', -1. ) ; CALL lbc_lnk( p_tauj, 'F', -1. )
1291	ENDIF
1292	!
1293	CASE( 'C' ) ! C-grid ==> U,V
1294	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1295	CASE( 'U' )
1296	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
1297	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1298	CASE( 'F' )
1299	DO jj = 2, jpjm1 ! F ==> (U,V)
1300	DO ji = fs_2, fs_jpim1 ! vector opt.
1301	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji,jj,1) + frcv(jpr_itx1)%z3(ji ,jj-1,1) )
1302	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(jj,jj,1) + frcv(jpr_ity1)%z3(ji-1,jj ,1) )
1303	END DO
1304	END DO
1305	CASE( 'T' )
1306	DO jj = 2, jpjm1 ! T ==> (U,V)
1307	DO ji = fs_2, fs_jpim1 ! vector opt.
1308	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
1309	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
1310	END DO
1311	END DO
1312	CASE( 'I' )
1313	DO jj = 2, jpjm1 ! I ==> (U,V)
1314	DO ji = 2, jpim1 ! NO vector opt.
1315	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj+1,1) + frcv(jpr_itx1)%z3(ji+1,jj ,1) )
1316	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji+1,jj+1,1) + frcv(jpr_ity1)%z3(ji ,jj+1,1) )
1317	END DO
1318	END DO
1319	END SELECT
1320	IF( srcv(jpr_itx1)%clgrid /= 'U' ) THEN
1321	CALL lbc_lnk( p_taui, 'U', -1. ) ; CALL lbc_lnk( p_tauj, 'V', -1. )
1322	ENDIF
1323	END SELECT
1324
1325	ENDIF
1326	!
1327	CALL wrk_dealloc( jpi,jpj, ztx, zty )
1328	!
1329	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_ice_tau')
1330	!
1331	END SUBROUTINE sbc_cpl_ice_tau
1332
1333
1334	SUBROUTINE sbc_cpl_ice_flx( p_frld, palbi, psst, pist )
1335	!!----------------------------------------------------------------------
1336	!! * ROUTINE sbc_cpl_ice_flx *
1337	!!
1338	!! ** Purpose : provide the heat and freshwater fluxes of the
1339	!! ocean-ice system.
1340	!!
1341	!! ** Method : transform the fields received from the atmosphere into
1342	!! surface heat and fresh water boundary condition for the
1343	!! ice-ocean system. The following fields are provided:
1344	!! * total non solar, solar and freshwater fluxes (qns_tot,
1345	!! qsr_tot and emp_tot) (total means weighted ice-ocean flux)
1346	!! NB: emp_tot include runoffs and calving.
1347	!! * fluxes over ice (qns_ice, qsr_ice, emp_ice) where
1348	!! emp_ice = sublimation - solid precipitation as liquid
1349	!! precipitation are re-routed directly to the ocean and
1350	!! runoffs and calving directly enter the ocean.
1351	!! * solid precipitation (sprecip), used to add to qns_tot
1352	!! the heat lost associated to melting solid precipitation
1353	!! over the ocean fraction.
1354	!! ===>> CAUTION here this changes the net heat flux received from
1355	!! the atmosphere
1356	!!
1357	!! - the fluxes have been separated from the stress as
1358	!! (a) they are updated at each ice time step compare to
1359	!! an update at each coupled time step for the stress, and
1360	!! (b) the conservative computation of the fluxes over the
1361	!! sea-ice area requires the knowledge of the ice fraction
1362	!! after the ice advection and before the ice thermodynamics,
1363	!! so that the stress is updated before the ice dynamics
1364	!! while the fluxes are updated after it.
1365	!!
1366	!! ** Action : update at each nf_ice time step:
1367	!! qns_tot, qsr_tot non-solar and solar total heat fluxes
1368	!! qns_ice, qsr_ice non-solar and solar heat fluxes over the ice
1369	!! emp_tot total evaporation - precipitation(liquid and solid) (-runoff)(-calving)
1370	!! emp_ice ice sublimation - solid precipitation over the ice
1371	!! dqns_ice d(non-solar heat flux)/d(Temperature) over the ice
1372	!! sprecip solid precipitation over the ocean
1373	!!----------------------------------------------------------------------
1374	REAL(wp), INTENT(in ), DIMENSION(:,:) :: p_frld ! lead fraction [0 to 1]
1375	! optional arguments, used only in 'mixed oce-ice' case
1376	REAL(wp), INTENT(in ), DIMENSION(:,:,:), OPTIONAL :: palbi ! all skies ice albedo
1377	REAL(wp), INTENT(in ), DIMENSION(:,: ), OPTIONAL :: psst ! sea surface temperature [Celsius]
1378	REAL(wp), INTENT(in ), DIMENSION(:,:,:), OPTIONAL :: pist ! ice surface temperature [Kelvin]
1379	!
1380	INTEGER :: jl ! dummy loop index
1381	REAL(wp), POINTER, DIMENSION(:,: ) :: zcptn, ztmp, zicefr, zmsk
1382	REAL(wp), POINTER, DIMENSION(:,: ) :: zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot
1383	REAL(wp), POINTER, DIMENSION(:,:,:) :: zqns_ice, zqsr_ice, zdqns_ice
1384	REAL(wp), POINTER, DIMENSION(:,: ) :: zevap, zsnw, zqns_oce, zqsr_oce, zqprec_ice, zqemp_oce ! for LIM3
1385	!!----------------------------------------------------------------------
1386	!
1387	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_ice_flx')
1388	!
1389	CALL wrk_alloc( jpi,jpj, zcptn, ztmp, zicefr, zmsk, zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot )
1390	CALL wrk_alloc( jpi,jpj,jpl, zqns_ice, zqsr_ice, zdqns_ice )
1391
1392	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1393	zicefr(:,:) = 1.- p_frld(:,:)
1394	zcptn(:,:) = rcp * sst_m(:,:)
1395	!
1396	! ! ========================= !
1397	! ! freshwater budget ! (emp)
1398	! ! ========================= !
1399	!
1400	! ! total Precipitation - total Evaporation (emp_tot)
1401	! ! solid precipitation - sublimation (emp_ice)
1402	! ! solid Precipitation (sprecip)
1403	! ! liquid + solid Precipitation (tprecip)
1404	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
1405	CASE( 'conservative' ) ! received fields: jpr_rain, jpr_snow, jpr_ievp, jpr_tevp
1406	zsprecip(:,:) = frcv(jpr_snow)%z3(:,:,1) ! May need to ensure positive here
1407	ztprecip(:,:) = frcv(jpr_rain)%z3(:,:,1) + zsprecip(:,:) ! May need to ensure positive here
1408	zemp_tot(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ztprecip(:,:)
1409	zemp_ice(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_snow)%z3(:,:,1)
1410	CALL iom_put( 'rain' , frcv(jpr_rain)%z3(:,:,1) ) ! liquid precipitation
1411	IF( iom_use('hflx_rain_cea') ) &
1412	CALL iom_put( 'hflx_rain_cea', frcv(jpr_rain)%z3(:,:,1) * zcptn(:,:) ) ! heat flux from liq. precip.
1413	IF( iom_use('evap_ao_cea') .OR. iom_use('hflx_evap_cea') ) &
1414	ztmp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:)
1415	IF( iom_use('evap_ao_cea' ) ) &
1416	CALL iom_put( 'evap_ao_cea' , ztmp ) ! ice-free oce evap (cell average)
1417	IF( iom_use('hflx_evap_cea') ) &
1418	CALL iom_put( 'hflx_evap_cea', ztmp(:,:) * zcptn(:,:) ) ! heat flux from from evap (cell average)
1419	CASE( 'oce and ice' ) ! received fields: jpr_sbpr, jpr_semp, jpr_oemp, jpr_ievp
1420	zemp_tot(:,:) = p_frld(:,:) * frcv(jpr_oemp)%z3(:,:,1) + zicefr(:,:) * frcv(jpr_sbpr)%z3(:,:,1)
1421	zemp_ice(:,:) = frcv(jpr_semp)%z3(:,:,1)
1422	zsprecip(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_semp)%z3(:,:,1)
1423	ztprecip(:,:) = frcv(jpr_semp)%z3(:,:,1) - frcv(jpr_sbpr)%z3(:,:,1) + zsprecip(:,:)
1424	END SELECT
1425
1426	IF( iom_use('subl_ai_cea') ) &
1427	CALL iom_put( 'subl_ai_cea', frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:) ) ! Sublimation over sea-ice (cell average)
1428	!
1429	! ! runoffs and calving (put in emp_tot)
1430	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1431	IF( srcv(jpr_cal)%laction ) THEN
1432	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1433	CALL iom_put( 'calving_cea', frcv(jpr_cal)%z3(:,:,1) )
1434	ENDIF
1435
1436	IF( ln_mixcpl ) THEN
1437	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1438	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1439	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1440	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1441	ELSE
1442	emp_tot(:,:) = zemp_tot(:,:)
1443	emp_ice(:,:) = zemp_ice(:,:)
1444	sprecip(:,:) = zsprecip(:,:)
1445	tprecip(:,:) = ztprecip(:,:)
1446	ENDIF
1447
1448	CALL iom_put( 'snowpre' , sprecip ) ! Snow
1449	IF( iom_use('snow_ao_cea') ) &
1450	CALL iom_put( 'snow_ao_cea', sprecip(:,:) * p_frld(:,:) ) ! Snow over ice-free ocean (cell average)
1451	IF( iom_use('snow_ai_cea') ) &
1452	CALL iom_put( 'snow_ai_cea', sprecip(:,:) * zicefr(:,:) ) ! Snow over sea-ice (cell average)
1453
1454	! ! ========================= !
1455	SELECT CASE( TRIM( sn_rcv_qns%cldes ) ) ! non solar heat fluxes ! (qns)
1456	! ! ========================= !
1457	CASE( 'oce only' ) ! the required field is directly provided
1458	zqns_tot(:,: ) = frcv(jpr_qnsoce)%z3(:,:,1)
1459	CASE( 'conservative' ) ! the required fields are directly provided
1460	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1461	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1462	zqns_ice(:,:,1:jpl) = frcv(jpr_qnsice)%z3(:,:,1:jpl)
1463	ELSE
1464	! Set all category values equal for the moment
1465	DO jl=1,jpl
1466	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1467	ENDDO
1468	ENDIF
1469	CASE( 'oce and ice' ) ! the total flux is computed from ocean and ice fluxes
1470	zqns_tot(:,: ) = p_frld(:,:) * frcv(jpr_qnsoce)%z3(:,:,1)
1471	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1472	DO jl=1,jpl
1473	zqns_tot(:,: ) = zqns_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qnsice)%z3(:,:,jl)
1474	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,jl)
1475	ENDDO
1476	ELSE
1477	qns_tot(:,: ) = qns_tot(:,:) + zicefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1478	DO jl=1,jpl
1479	zqns_tot(:,: ) = zqns_tot(:,:) + zicefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1480	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1481	ENDDO
1482	ENDIF
1483	CASE( 'mixed oce-ice' ) ! the ice flux is cumputed from the total flux, the SST and ice informations
1484	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1485	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1486	zqns_ice(:,:,1) = frcv(jpr_qnsmix)%z3(:,:,1) &
1487	& + frcv(jpr_dqnsdt)%z3(:,:,1) * ( pist(:,:,1) - ( (rt0 + psst(:,: ) ) * p_frld(:,:) &
1488	& + pist(:,:,1) * zicefr(:,:) ) )
1489	END SELECT
1490	!!gm
1491	!! currently it is taken into account in leads budget but not in the zqns_tot, and thus not in
1492	!! the flux that enter the ocean....
1493	!! moreover 1 - it is not diagnose anywhere....
1494	!! 2 - it is unclear for me whether this heat lost is taken into account in the atmosphere or not...
1495	!!
1496	!! similar job should be done for snow and precipitation temperature
1497	!
1498	IF( srcv(jpr_cal)%laction ) THEN ! Iceberg melting
1499	ztmp(:,:) = frcv(jpr_cal)%z3(:,:,1) * lfus ! add the latent heat of iceberg melting
1500	zqns_tot(:,:) = zqns_tot(:,:) - ztmp(:,:)
1501	IF( iom_use('hflx_cal_cea') ) &
1502	CALL iom_put( 'hflx_cal_cea', ztmp + frcv(jpr_cal)%z3(:,:,1) * zcptn(:,:) ) ! heat flux from calving
1503	ENDIF
1504
1505	ztmp(:,:) = p_frld(:,:) * zsprecip(:,:) * lfus
1506	IF( iom_use('hflx_snow_cea') ) CALL iom_put( 'hflx_snow_cea', ztmp + sprecip(:,:) * zcptn(:,:) ) ! heat flux from snow (cell average)
1507
1508	#if defined key_lim3
1509	CALL wrk_alloc( jpi,jpj, zevap, zsnw, zqns_oce, zqprec_ice, zqemp_oce )
1510
1511	! --- evaporation --- !
1512	! clem: evap_ice is set to 0 for LIM3 since we still do not know what to do with sublimation
1513	! the problem is: the atm. imposes both mass evaporation and heat removed from the snow/ice
1514	! but it is incoherent WITH the ice model
1515	DO jl=1,jpl
1516	evap_ice(:,:,jl) = 0._wp ! should be: frcv(jpr_ievp)%z3(:,:,1)
1517	ENDDO
1518	zevap(:,:) = zemp_tot(:,:) + ztprecip(:,:) ! evaporation over ocean
1519
1520	! --- evaporation minus precipitation --- !
1521	emp_oce(:,:) = emp_tot(:,:) - emp_ice(:,:)
1522
1523	! --- non solar flux over ocean --- !
1524	! note: p_frld cannot be = 0 since we limit the ice concentration to amax
1525	zqns_oce = 0._wp
1526	WHERE( p_frld /= 0._wp ) zqns_oce(:,:) = ( zqns_tot(:,:) - SUM( a_i * zqns_ice, dim=3 ) ) / p_frld(:,:)
1527
1528	! --- heat flux associated with emp --- !
1529	zsnw(:,:) = 0._wp
1530	CALL lim_thd_snwblow( p_frld, zsnw ) ! snow distribution over ice after wind blowing
1531	zqemp_oce(:,:) = - zevap(:,:) * p_frld(:,:) * zcptn(:,:) & ! evap
1532	& + ( ztprecip(:,:) - zsprecip(:,:) ) * zcptn(:,:) & ! liquid precip
1533	& + zsprecip(:,:) * ( 1._wp - zsnw ) * ( zcptn(:,:) - lfus ) ! solid precip over ocean
1534	qemp_ice(:,:) = - frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:) * zcptn(:,:) & ! ice evap
1535	& + zsprecip(:,:) * zsnw * ( zcptn(:,:) - lfus ) ! solid precip over ice
1536
1537	! --- heat content of precip over ice in J/m3 (to be used in 1D-thermo) --- !
1538	zqprec_ice(:,:) = rhosn * ( zcptn(:,:) - lfus )
1539
1540	! --- total non solar flux --- !
1541	zqns_tot(:,:) = zqns_tot(:,:) + qemp_ice(:,:) + zqemp_oce(:,:)
1542
1543	! --- in case both coupled/forced are active, we must mix values --- !
1544	IF( ln_mixcpl ) THEN
1545	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1546	qns_oce(:,:) = qns_oce(:,:) * xcplmask(:,:,0) + zqns_oce(:,:)* zmsk(:,:)
1547	DO jl=1,jpl
1548	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
1549	ENDDO
1550	qprec_ice(:,:) = qprec_ice(:,:) * xcplmask(:,:,0) + zqprec_ice(:,:)* zmsk(:,:)
1551	qemp_oce (:,:) = qemp_oce(:,:) * xcplmask(:,:,0) + zqemp_oce(:,:)* zmsk(:,:)
1552	!!clem evap_ice(:,:) = evap_ice(:,:) * xcplmask(:,:,0)
1553	ELSE
1554	qns_tot (:,: ) = zqns_tot (:,: )
1555	qns_oce (:,: ) = zqns_oce (:,: )
1556	qns_ice (:,:,:) = zqns_ice (:,:,:)
1557	qprec_ice(:,:) = zqprec_ice(:,:)
1558	qemp_oce (:,:) = zqemp_oce (:,:)
1559	ENDIF
1560
1561	CALL wrk_dealloc( jpi,jpj, zevap, zsnw, zqns_oce, zqprec_ice, zqemp_oce )
1562	#else
1563
1564	! clem: this formulation is certainly wrong... but better than it was...
1565	zqns_tot(:,:) = zqns_tot(:,:) & ! zqns_tot update over free ocean with:
1566	& - ztmp(:,:) & ! remove the latent heat flux of solid precip. melting
1567	& - ( zemp_tot(:,:) & ! remove the heat content of mass flux (assumed to be at SST)
1568	& - zemp_ice(:,:) * zicefr(:,:) ) * zcptn(:,:)
1569
1570	IF( ln_mixcpl ) THEN
1571	qns_tot(:,:) = qns(:,:) * p_frld(:,:) + SUM( qns_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1572	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1573	DO jl=1,jpl
1574	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
1575	ENDDO
1576	ELSE
1577	qns_tot(:,: ) = zqns_tot(:,: )
1578	qns_ice(:,:,:) = zqns_ice(:,:,:)
1579	ENDIF
1580
1581	#endif
1582
1583	! ! ========================= !
1584	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) ) ! solar heat fluxes ! (qsr)
1585	! ! ========================= !
1586	CASE( 'oce only' )
1587	zqsr_tot(:,: ) = MAX( 0._wp , frcv(jpr_qsroce)%z3(:,:,1) )
1588	CASE( 'conservative' )
1589	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1590	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1591	zqsr_ice(:,:,1:jpl) = frcv(jpr_qsrice)%z3(:,:,1:jpl)
1592	ELSE
1593	! Set all category values equal for the moment
1594	DO jl=1,jpl
1595	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1596	ENDDO
1597	ENDIF
1598	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1599	zqsr_ice(:,:,1) = frcv(jpr_qsrice)%z3(:,:,1)
1600	CASE( 'oce and ice' )
1601	zqsr_tot(:,: ) = p_frld(:,:) * frcv(jpr_qsroce)%z3(:,:,1)
1602	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1603	DO jl=1,jpl
1604	zqsr_tot(:,: ) = zqsr_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qsrice)%z3(:,:,jl)
1605	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,jl)
1606	ENDDO
1607	ELSE
1608	qsr_tot(:,: ) = qsr_tot(:,:) + zicefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
1609	DO jl=1,jpl
1610	zqsr_tot(:,: ) = zqsr_tot(:,:) + zicefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
1611	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1612	ENDDO
1613	ENDIF
1614	CASE( 'mixed oce-ice' )
1615	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1616	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1617	! Create solar heat flux over ice using incoming solar heat flux and albedos
1618	! ( see OASIS3 user guide, 5th edition, p39 )
1619	zqsr_ice(:,:,1) = frcv(jpr_qsrmix)%z3(:,:,1) * ( 1.- palbi(:,:,1) ) &
1620	& / ( 1.- ( albedo_oce_mix(:,: ) * p_frld(:,:) &
1621	& + palbi (:,:,1) * zicefr(:,:) ) )
1622	END SELECT
1623	IF( ln_dm2dc .AND. ln_cpl ) THEN ! modify qsr to include the diurnal cycle
1624	zqsr_tot(:,: ) = sbc_dcy( zqsr_tot(:,: ) )
1625	DO jl=1,jpl
1626	zqsr_ice(:,:,jl) = sbc_dcy( zqsr_ice(:,:,jl) )
1627	ENDDO
1628	ENDIF
1629
1630	#if defined key_lim3
1631	CALL wrk_alloc( jpi,jpj, zqsr_oce )
1632	! --- solar flux over ocean --- !
1633	! note: p_frld cannot be = 0 since we limit the ice concentration to amax
1634	zqsr_oce = 0._wp
1635	WHERE( p_frld /= 0._wp ) zqsr_oce(:,:) = ( zqsr_tot(:,:) - SUM( a_i * zqsr_ice, dim=3 ) ) / p_frld(:,:)
1636
1637	IF( ln_mixcpl ) THEN ; qsr_oce(:,:) = qsr_oce(:,:) * xcplmask(:,:,0) + zqsr_oce(:,:)* zmsk(:,:)
1638	ELSE ; qsr_oce(:,:) = zqsr_oce(:,:) ; ENDIF
1639
1640	CALL wrk_dealloc( jpi,jpj, zqsr_oce )
1641	#endif
1642
1643	IF( ln_mixcpl ) THEN
1644	qsr_tot(:,:) = qsr(:,:) * p_frld(:,:) + SUM( qsr_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1645	qsr_tot(:,:) = qsr_tot(:,:) * xcplmask(:,:,0) + zqsr_tot(:,:)* zmsk(:,:)
1646	DO jl=1,jpl
1647	qsr_ice(:,:,jl) = qsr_ice(:,:,jl) * xcplmask(:,:,0) + zqsr_ice(:,:,jl)* zmsk(:,:)
1648	ENDDO
1649	ELSE
1650	qsr_tot(:,: ) = zqsr_tot(:,: )
1651	qsr_ice(:,:,:) = zqsr_ice(:,:,:)
1652	ENDIF
1653
1654	! ! ========================= !
1655	SELECT CASE( TRIM( sn_rcv_dqnsdt%cldes ) ) ! d(qns)/dt !
1656	! ! ========================= !
1657	CASE ('coupled')
1658	IF ( TRIM(sn_rcv_dqnsdt%clcat) == 'yes' ) THEN
1659	zdqns_ice(:,:,1:jpl) = frcv(jpr_dqnsdt)%z3(:,:,1:jpl)
1660	ELSE
1661	! Set all category values equal for the moment
1662	DO jl=1,jpl
1663	zdqns_ice(:,:,jl) = frcv(jpr_dqnsdt)%z3(:,:,1)
1664	ENDDO
1665	ENDIF
1666	END SELECT
1667
1668	IF( ln_mixcpl ) THEN
1669	DO jl=1,jpl
1670	dqns_ice(:,:,jl) = dqns_ice(:,:,jl) * xcplmask(:,:,0) + zdqns_ice(:,:,jl) * zmsk(:,:)
1671	ENDDO
1672	ELSE
1673	dqns_ice(:,:,:) = zdqns_ice(:,:,:)
1674	ENDIF
1675
1676	! ! ========================= !
1677	SELECT CASE( TRIM( sn_rcv_iceflx%cldes ) ) ! topmelt and botmelt !
1678	! ! ========================= !
1679	CASE ('coupled')
1680	topmelt(:,:,:)=frcv(jpr_topm)%z3(:,:,:)
1681	botmelt(:,:,:)=frcv(jpr_botm)%z3(:,:,:)
1682	END SELECT
1683
1684	! Surface transimission parameter io (Maykut Untersteiner , 1971 ; Ebert and Curry, 1993 )
1685	! Used for LIM2 and LIM3
1686	! Coupled case: since cloud cover is not received from atmosphere
1687	! ===> used prescribed cloud fraction representative for polar oceans in summer (0.81)
1688	fr1_i0(:,:) = ( 0.18 * ( 1.0 - cldf_ice ) + 0.35 * cldf_ice )
1689	fr2_i0(:,:) = ( 0.82 * ( 1.0 - cldf_ice ) + 0.65 * cldf_ice )
1690
1691	CALL wrk_dealloc( jpi,jpj, zcptn, ztmp, zicefr, zmsk, zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot )
1692	CALL wrk_dealloc( jpi,jpj,jpl, zqns_ice, zqsr_ice, zdqns_ice )
1693	!
1694	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_ice_flx')
1695	!
1696	END SUBROUTINE sbc_cpl_ice_flx
1697
1698
1699	SUBROUTINE sbc_cpl_snd( kt )
1700	!!----------------------------------------------------------------------
1701	!! * ROUTINE sbc_cpl_snd *
1702	!!
1703	!! ** Purpose : provide the ocean-ice informations to the atmosphere
1704	!!
1705	!! ** Method : send to the atmosphere through a call to cpl_snd
1706	!! all the needed fields (as defined in sbc_cpl_init)
1707	!!----------------------------------------------------------------------
1708	INTEGER, INTENT(in) :: kt
1709	!
1710	INTEGER :: ji, jj, jl ! dummy loop indices
1711	INTEGER :: isec, info ! local integer
1712	REAL(wp) :: zumax, zvmax
1713	REAL(wp), POINTER, DIMENSION(:,:) :: zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1
1714	REAL(wp), POINTER, DIMENSION(:,:,:) :: ztmp3, ztmp4
1715	!!----------------------------------------------------------------------
1716	!
1717	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_snd')
1718	!
1719	CALL wrk_alloc( jpi,jpj, zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1 )
1720	CALL wrk_alloc( jpi,jpj,jpl, ztmp3, ztmp4 )
1721
1722	isec = ( kt - nit000 ) * NINT(rdttra(1)) ! date of exchanges
1723
1724	zfr_l(:,:) = 1.- fr_i(:,:)
1725	! ! ------------------------- !
1726	! ! Surface temperature ! in Kelvin
1727	! ! ------------------------- !
1728	IF( ssnd(jps_toce)%laction .OR. ssnd(jps_tice)%laction .OR. ssnd(jps_tmix)%laction ) THEN
1729
1730	IF ( nn_components == jp_iam_opa ) THEN
1731	ztmp1(:,:) = tsn(:,:,1,jp_tem) ! send temperature as it is (potential or conservative) -> use of ln_useCT on the received part
1732	ELSE
1733	! we must send the surface potential temperature
1734	IF( ln_useCT ) THEN ; ztmp1(:,:) = eos_pt_from_ct( tsn(:,:,1,jp_tem), tsn(:,:,1,jp_sal) )
1735	ELSE ; ztmp1(:,:) = tsn(:,:,1,jp_tem)
1736	ENDIF
1737	!
1738	SELECT CASE( sn_snd_temp%cldes)
1739	CASE( 'oce only' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
1740	CASE( 'oce and ice' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
1741	SELECT CASE( sn_snd_temp%clcat )
1742	CASE( 'yes' )
1743	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl)
1744	CASE( 'no' )
1745	WHERE( SUM( a_i, dim=3 ) /= 0. )
1746	ztmp3(:,:,1) = SUM( tn_ice * a_i, dim=3 ) / SUM( a_i, dim=3 )
1747	ELSEWHERE
1748	ztmp3(:,:,1) = rt0 ! TODO: Is freezing point a good default? (Maybe SST is better?)
1749	END WHERE
1750	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
1751	END SELECT
1752	CASE( 'weighted oce and ice' ) ; ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
1753	SELECT CASE( sn_snd_temp%clcat )
1754	CASE( 'yes' )
1755	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
1756	CASE( 'no' )
1757	ztmp3(:,:,:) = 0.0
1758	DO jl=1,jpl
1759	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
1760	ENDDO
1761	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
1762	END SELECT
1763	CASE( 'mixed oce-ice' )
1764	ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
1765	DO jl=1,jpl
1766	ztmp1(:,:) = ztmp1(:,:) + tn_ice(:,:,jl) * a_i(:,:,jl)
1767	ENDDO
1768	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%cldes' )
1769	END SELECT
1770	ENDIF
1771	IF( ssnd(jps_toce)%laction ) CALL cpl_snd( jps_toce, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1772	IF( ssnd(jps_tice)%laction ) CALL cpl_snd( jps_tice, isec, ztmp3, info )
1773	IF( ssnd(jps_tmix)%laction ) CALL cpl_snd( jps_tmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1774	ENDIF
1775	! ! ------------------------- !
1776	! ! Albedo !
1777	! ! ------------------------- !
1778	IF( ssnd(jps_albice)%laction ) THEN ! ice
1779	SELECT CASE( sn_snd_alb%cldes )
1780	CASE( 'ice' ) ; ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl)
1781	CASE( 'weighted ice' ) ; ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
1782	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%cldes' )
1783	END SELECT
1784	CALL cpl_snd( jps_albice, isec, ztmp3, info )
1785	ENDIF
1786	IF( ssnd(jps_albmix)%laction ) THEN ! mixed ice-ocean
1787	ztmp1(:,:) = albedo_oce_mix(:,:) * zfr_l(:,:)
1788	DO jl=1,jpl
1789	ztmp1(:,:) = ztmp1(:,:) + alb_ice(:,:,jl) * a_i(:,:,jl)
1790	ENDDO
1791	CALL cpl_snd( jps_albmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1792	ENDIF
1793	! ! ------------------------- !
1794	! ! Ice fraction & Thickness !
1795	! ! ------------------------- !
1796	! Send ice fraction field to atmosphere
1797	IF( ssnd(jps_fice)%laction ) THEN
1798	SELECT CASE( sn_snd_thick%clcat )
1799	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
1800	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
1801	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1802	END SELECT
1803	IF( ssnd(jps_fice)%laction ) CALL cpl_snd( jps_fice, isec, ztmp3, info )
1804	ENDIF
1805
1806	! Send ice fraction field to OPA (sent by SAS in SAS-OPA coupling)
1807	IF( ssnd(jps_fice2)%laction ) THEN
1808	ztmp3(:,:,1) = fr_i(:,:)
1809	IF( ssnd(jps_fice2)%laction ) CALL cpl_snd( jps_fice2, isec, ztmp3, info )
1810	ENDIF
1811
1812	! Send ice and snow thickness field
1813	IF( ssnd(jps_hice)%laction .OR. ssnd(jps_hsnw)%laction ) THEN
1814	SELECT CASE( sn_snd_thick%cldes)
1815	CASE( 'none' ) ! nothing to do
1816	CASE( 'weighted ice and snow' )
1817	SELECT CASE( sn_snd_thick%clcat )
1818	CASE( 'yes' )
1819	ztmp3(:,:,1:jpl) = ht_i(:,:,1:jpl) * a_i(:,:,1:jpl)
1820	ztmp4(:,:,1:jpl) = ht_s(:,:,1:jpl) * a_i(:,:,1:jpl)
1821	CASE( 'no' )
1822	ztmp3(:,:,:) = 0.0 ; ztmp4(:,:,:) = 0.0
1823	DO jl=1,jpl
1824	ztmp3(:,:,1) = ztmp3(:,:,1) + ht_i(:,:,jl) * a_i(:,:,jl)
1825	ztmp4(:,:,1) = ztmp4(:,:,1) + ht_s(:,:,jl) * a_i(:,:,jl)
1826	ENDDO
1827	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1828	END SELECT
1829	CASE( 'ice and snow' )
1830	SELECT CASE( sn_snd_thick%clcat )
1831	CASE( 'yes' )
1832	ztmp3(:,:,1:jpl) = ht_i(:,:,1:jpl)
1833	ztmp4(:,:,1:jpl) = ht_s(:,:,1:jpl)
1834	CASE( 'no' )
1835	WHERE( SUM( a_i, dim=3 ) /= 0. )
1836	ztmp3(:,:,1) = SUM( ht_i * a_i, dim=3 ) / SUM( a_i, dim=3 )
1837	ztmp4(:,:,1) = SUM( ht_s * a_i, dim=3 ) / SUM( a_i, dim=3 )
1838	ELSEWHERE
1839	ztmp3(:,:,1) = 0.
1840	ztmp4(:,:,1) = 0.
1841	END WHERE
1842	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1843	END SELECT
1844	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%cldes' )
1845	END SELECT
1846	IF( ssnd(jps_hice)%laction ) CALL cpl_snd( jps_hice, isec, ztmp3, info )
1847	IF( ssnd(jps_hsnw)%laction ) CALL cpl_snd( jps_hsnw, isec, ztmp4, info )
1848	ENDIF
1849	!
1850	#if defined key_cpl_carbon_cycle
1851	! ! ------------------------- !
1852	! ! CO2 flux from PISCES !
1853	! ! ------------------------- !
1854	IF( ssnd(jps_co2)%laction ) CALL cpl_snd( jps_co2, isec, RESHAPE ( oce_co2, (/jpi,jpj,1/) ) , info )
1855	!
1856	#endif
1857	! ! ------------------------- !
1858	IF( ssnd(jps_ocx1)%laction ) THEN ! Surface current !
1859	! ! ------------------------- !
1860	!
1861	! j+1 j -----V---F
1862	! surface velocity always sent from T point ! \|
1863	! j \| T U
1864	! \| \|
1865	! j j-1 -I-------\|
1866	! (for I) \| \|
1867	! i-1 i i
1868	! i i+1 (for I)
1869	IF( nn_components == jp_iam_opa ) THEN
1870	zotx1(:,:) = un(:,:,1)
1871	zoty1(:,:) = vn(:,:,1)
1872	ELSE
1873	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
1874	CASE( 'oce only' ) ! C-grid ==> T
1875	DO jj = 2, jpjm1
1876	DO ji = fs_2, fs_jpim1 ! vector opt.
1877	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
1878	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) )
1879	END DO
1880	END DO
1881	CASE( 'weighted oce and ice' )
1882	SELECT CASE ( cp_ice_msh )
1883	CASE( 'C' ) ! Ocean and Ice on C-grid ==> T
1884	DO jj = 2, jpjm1
1885	DO ji = fs_2, fs_jpim1 ! vector opt.
1886	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
1887	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
1888	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
1889	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
1890	END DO
1891	END DO
1892	CASE( 'I' ) ! Ocean on C grid, Ice on I-point (B-grid) ==> T
1893	DO jj = 2, jpjm1
1894	DO ji = 2, jpim1 ! NO vector opt.
1895	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj)
1896	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj)
1897	zitx1(ji,jj) = 0.25 * ( u_ice(ji+1,jj+1) + u_ice(ji,jj+1) &
1898	& + u_ice(ji+1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1899	zity1(ji,jj) = 0.25 * ( v_ice(ji+1,jj+1) + v_ice(ji,jj+1) &
1900	& + v_ice(ji+1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1901	END DO
1902	END DO
1903	CASE( 'F' ) ! Ocean on C grid, Ice on F-point (B-grid) ==> T
1904	DO jj = 2, jpjm1
1905	DO ji = 2, jpim1 ! NO vector opt.
1906	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj)
1907	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj)
1908	zitx1(ji,jj) = 0.25 * ( u_ice(ji-1,jj-1) + u_ice(ji,jj-1) &
1909	& + u_ice(ji-1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1910	zity1(ji,jj) = 0.25 * ( v_ice(ji-1,jj-1) + v_ice(ji,jj-1) &
1911	& + v_ice(ji-1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1912	END DO
1913	END DO
1914	END SELECT
1915	CALL lbc_lnk( zitx1, 'T', -1. ) ; CALL lbc_lnk( zity1, 'T', -1. )
1916	CASE( 'mixed oce-ice' )
1917	SELECT CASE ( cp_ice_msh )
1918	CASE( 'C' ) ! Ocean and Ice on C-grid ==> T
1919	DO jj = 2, jpjm1
1920	DO ji = fs_2, fs_jpim1 ! vector opt.
1921	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
1922	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
1923	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
1924	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
1925	END DO
1926	END DO
1927	CASE( 'I' ) ! Ocean on C grid, Ice on I-point (B-grid) ==> T
1928	DO jj = 2, jpjm1
1929	DO ji = 2, jpim1 ! NO vector opt.
1930	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj) &
1931	& + 0.25 * ( u_ice(ji+1,jj+1) + u_ice(ji,jj+1) &
1932	& + u_ice(ji+1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1933	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj) &
1934	& + 0.25 * ( v_ice(ji+1,jj+1) + v_ice(ji,jj+1) &
1935	& + v_ice(ji+1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1936	END DO
1937	END DO
1938	CASE( 'F' ) ! Ocean on C grid, Ice on F-point (B-grid) ==> T
1939	DO jj = 2, jpjm1
1940	DO ji = 2, jpim1 ! NO vector opt.
1941	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj) &
1942	& + 0.25 * ( u_ice(ji-1,jj-1) + u_ice(ji,jj-1) &
1943	& + u_ice(ji-1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1944	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj) &
1945	& + 0.25 * ( v_ice(ji-1,jj-1) + v_ice(ji,jj-1) &
1946	& + v_ice(ji-1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1947	END DO
1948	END DO
1949	END SELECT
1950	END SELECT
1951	CALL lbc_lnk( zotx1, ssnd(jps_ocx1)%clgrid, -1. ) ; CALL lbc_lnk( zoty1, ssnd(jps_ocy1)%clgrid, -1. )
1952	!
1953	ENDIF
1954	!
1955	!
1956	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
1957	! ! Ocean component
1958	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
1959	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
1960	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
1961	zoty1(:,:) = ztmp2(:,:)
1962	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
1963	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
1964	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
1965	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
1966	zity1(:,:) = ztmp2(:,:)
1967	ENDIF
1968	ENDIF
1969	!
1970	! spherical coordinates to cartesian -> 2 components to 3 components
1971	IF( TRIM( sn_snd_crt%clvref ) == 'cartesian' ) THEN
1972	ztmp1(:,:) = zotx1(:,:) ! ocean currents
1973	ztmp2(:,:) = zoty1(:,:)
1974	CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
1975	!
1976	IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
1977	ztmp1(:,:) = zitx1(:,:)
1978	ztmp1(:,:) = zity1(:,:)
1979	CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
1980	ENDIF
1981	ENDIF
1982	!
1983	IF( ssnd(jps_ocx1)%laction ) CALL cpl_snd( jps_ocx1, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
1984	IF( ssnd(jps_ocy1)%laction ) CALL cpl_snd( jps_ocy1, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
1985	IF( ssnd(jps_ocz1)%laction ) CALL cpl_snd( jps_ocz1, isec, RESHAPE ( zotz1, (/jpi,jpj,1/) ), info ) ! ocean z current 1st grid
1986	!
1987	IF( ssnd(jps_ivx1)%laction ) CALL cpl_snd( jps_ivx1, isec, RESHAPE ( zitx1, (/jpi,jpj,1/) ), info ) ! ice x current 1st grid
1988	IF( ssnd(jps_ivy1)%laction ) CALL cpl_snd( jps_ivy1, isec, RESHAPE ( zity1, (/jpi,jpj,1/) ), info ) ! ice y current 1st grid
1989	IF( ssnd(jps_ivz1)%laction ) CALL cpl_snd( jps_ivz1, isec, RESHAPE ( zitz1, (/jpi,jpj,1/) ), info ) ! ice z current 1st grid
1990	!
1991	ENDIF
1992	!
1993	!
1994	! Fields sent by OPA to SAS when doing OPA<->SAS coupling
1995	! ! SSH
1996	IF( ssnd(jps_ssh )%laction ) THEN
1997	! ! removed inverse barometer ssh when Patm
1998	! forcing is used (for sea-ice dynamics)
1999	IF( ln_apr_dyn ) THEN ; ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2000	ELSE ; ztmp1(:,:) = sshn(:,:)
2001	ENDIF
2002	CALL cpl_snd( jps_ssh , isec, RESHAPE ( ztmp1 , (/jpi,jpj,1/) ), info )
2003
2004	ENDIF
2005	! ! SSS
2006	IF( ssnd(jps_soce )%laction ) THEN
2007	CALL cpl_snd( jps_soce , isec, RESHAPE ( tsn(:,:,1,jp_sal), (/jpi,jpj,1/) ), info )
2008	ENDIF
2009	! ! first T level thickness
2010	IF( ssnd(jps_e3t1st )%laction ) THEN
2011	CALL cpl_snd( jps_e3t1st, isec, RESHAPE ( fse3t_n(:,:,1) , (/jpi,jpj,1/) ), info )
2012	ENDIF
2013	! ! Qsr fraction
2014	IF( ssnd(jps_fraqsr)%laction ) THEN
2015	CALL cpl_snd( jps_fraqsr, isec, RESHAPE ( fraqsr_1lev(:,:) , (/jpi,jpj,1/) ), info )
2016	ENDIF
2017	!
2018	! Fields sent by SAS to OPA when OASIS coupling
2019	! ! Solar heat flux
2020	IF( ssnd(jps_qsroce)%laction ) CALL cpl_snd( jps_qsroce, isec, RESHAPE ( qsr , (/jpi,jpj,1/) ), info )
2021	IF( ssnd(jps_qnsoce)%laction ) CALL cpl_snd( jps_qnsoce, isec, RESHAPE ( qns , (/jpi,jpj,1/) ), info )
2022	IF( ssnd(jps_oemp )%laction ) CALL cpl_snd( jps_oemp , isec, RESHAPE ( emp , (/jpi,jpj,1/) ), info )
2023	IF( ssnd(jps_sflx )%laction ) CALL cpl_snd( jps_sflx , isec, RESHAPE ( sfx , (/jpi,jpj,1/) ), info )
2024	IF( ssnd(jps_otx1 )%laction ) CALL cpl_snd( jps_otx1 , isec, RESHAPE ( utau, (/jpi,jpj,1/) ), info )
2025	IF( ssnd(jps_oty1 )%laction ) CALL cpl_snd( jps_oty1 , isec, RESHAPE ( vtau, (/jpi,jpj,1/) ), info )
2026	IF( ssnd(jps_rnf )%laction ) CALL cpl_snd( jps_rnf , isec, RESHAPE ( rnf , (/jpi,jpj,1/) ), info )
2027	IF( ssnd(jps_taum )%laction ) CALL cpl_snd( jps_taum , isec, RESHAPE ( taum, (/jpi,jpj,1/) ), info )
2028
2029	CALL wrk_dealloc( jpi,jpj, zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1 )
2030	CALL wrk_dealloc( jpi,jpj,jpl, ztmp3, ztmp4 )
2031	!
2032	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_snd')
2033	!
2034	END SUBROUTINE sbc_cpl_snd
2035
2036	!!======================================================================
2037	END MODULE sbccpl

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