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sbccpl.F90 in branches/UKMO/AMM15_v3_6_STABLE_package_collate_coupling/NEMOGCM/NEMO/OPA_SRC/SBC – NEMO

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source: branches/UKMO/AMM15_v3_6_STABLE_package_collate_coupling/NEMOGCM/NEMO/OPA_SRC/SBC/sbccpl.F90 @ 10392

Last change on this file since 10392 was 10392, checked in by jcastill, 5 years ago
Merge branch r6232_hadgem3_mct@7457
File size: 122.2 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	un (:,:,1) = ssu_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1035	CALL iom_put( 'ssu_m', ssu_m )
1036	ENDIF
1037	IF( srcv(jpr_ocy1)%laction ) THEN
1038	ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
1039	vb (:,:,1) = ssv_m(:,:) ! will be used in sbcice_lim in the call of lim_sbc_tau
1040	vn (:,:,1) = ssv_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1041	CALL iom_put( 'ssv_m', ssv_m )
1042	ENDIF
1043	! ! ======================== !
1044	! ! first T level thickness !
1045	! ! ======================== !
1046	IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1047	e3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
1048	CALL iom_put( 'e3t_m', e3t_m(:,:) )
1049	ENDIF
1050	! ! ================================ !
1051	! ! fraction of solar net radiation !
1052	! ! ================================ !
1053	IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1054	frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
1055	CALL iom_put( 'frq_m', frq_m )
1056	ENDIF
1057
1058	! ! ========================= !
1059	IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
1060	! ! ========================= !
1061	!
1062	! ! total freshwater fluxes over the ocean (emp)
1063	IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
1064	SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
1065	CASE( 'conservative' )
1066	zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
1067	CASE( 'oce only', 'oce and ice' )
1068	zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
1069	CASE default
1070	CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
1071	END SELECT
1072	ELSE
1073	zemp(:,:) = 0._wp
1074	ENDIF
1075	!
1076	! ! runoffs and calving (added in emp)
1077	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1078	IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
1079
1080	IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
1081	ELSE ; emp(:,:) = zemp(:,:)
1082	ENDIF
1083	!
1084	! ! non solar heat flux over the ocean (qns)
1085	IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1086	ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1087	ELSE ; zqns(:,:) = 0._wp
1088	END IF
1089	! update qns over the free ocean with:
1090	IF( nn_components /= jp_iam_opa ) THEN
1091	zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
1092	IF( srcv(jpr_snow )%laction ) THEN
1093	zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * lfus ! energy for melting solid precipitation over the free ocean
1094	ENDIF
1095	ENDIF
1096	IF( ln_mixcpl ) THEN ; qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
1097	ELSE ; qns(:,:) = zqns(:,:)
1098	ENDIF
1099
1100	! ! solar flux over the ocean (qsr)
1101	IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
1102	ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
1103	ELSE ; zqsr(:,:) = 0._wp
1104	ENDIF
1105	IF( ln_dm2dc .AND. ln_cpl ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
1106	IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
1107	ELSE ; qsr(:,:) = zqsr(:,:)
1108	ENDIF
1109	!
1110	! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
1111	IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
1112	! Ice cover (received by opa in case of opa <-> sas coupling)
1113	IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
1114	!
1115
1116	ENDIF
1117	!
1118	CALL wrk_dealloc( jpi,jpj, ztx, zty, zmsk, zemp, zqns, zqsr )
1119	!
1120	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_rcv')
1121	!
1122	END SUBROUTINE sbc_cpl_rcv
1123
1124
1125	SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
1126	!!----------------------------------------------------------------------
1127	!! * ROUTINE sbc_cpl_ice_tau *
1128	!!
1129	!! ** Purpose : provide the stress over sea-ice in coupled mode
1130	!!
1131	!! ** Method : transform the received stress from the atmosphere into
1132	!! an atmosphere-ice stress in the (i,j) ocean referencial
1133	!! and at the velocity point of the sea-ice model (cp_ice_msh):
1134	!! 'C'-grid : i- (j-) components given at U- (V-) point
1135	!! 'I'-grid : B-grid lower-left corner: both components given at I-point
1136	!!
1137	!! The received stress are :
1138	!! - defined by 3 components (if cartesian coordinate)
1139	!! or by 2 components (if spherical)
1140	!! - oriented along geographical coordinate (if eastward-northward)
1141	!! or along the local grid coordinate (if local grid)
1142	!! - given at U- and V-point, resp. if received on 2 grids
1143	!! or at a same point (T or I) if received on 1 grid
1144	!! Therefore and if necessary, they are successively
1145	!! processed in order to obtain them
1146	!! first as 2 components on the sphere
1147	!! second as 2 components oriented along the local grid
1148	!! third as 2 components on the cp_ice_msh point
1149	!!
1150	!! Except in 'oce and ice' case, only one vector stress field
1151	!! is received. It has already been processed in sbc_cpl_rcv
1152	!! so that it is now defined as (i,j) components given at U-
1153	!! and V-points, respectively. Therefore, only the third
1154	!! transformation is done and only if the ice-grid is a 'I'-grid.
1155	!!
1156	!! ** Action : return ptau_i, ptau_j, the stress over the ice at cp_ice_msh point
1157	!!----------------------------------------------------------------------
1158	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
1159	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
1160	!!
1161	INTEGER :: ji, jj ! dummy loop indices
1162	INTEGER :: itx ! index of taux over ice
1163	REAL(wp), POINTER, DIMENSION(:,:) :: ztx, zty
1164	!!----------------------------------------------------------------------
1165	!
1166	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_ice_tau')
1167	!
1168	CALL wrk_alloc( jpi,jpj, ztx, zty )
1169
1170	IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
1171	ELSE ; itx = jpr_otx1
1172	ENDIF
1173
1174	! do something only if we just received the stress from atmosphere
1175	IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
1176
1177	! ! ======================= !
1178	IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
1179	! ! ======================= !
1180	!
1181	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1182	! ! (cartesian to spherical -> 3 to 2 components)
1183	CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
1184	& srcv(jpr_itx1)%clgrid, ztx, zty )
1185	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1186	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1187	!
1188	IF( srcv(jpr_itx2)%laction ) THEN
1189	CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
1190	& srcv(jpr_itx2)%clgrid, ztx, zty )
1191	frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1192	frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1193	ENDIF
1194	!
1195	ENDIF
1196	!
1197	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1198	! ! (geographical to local grid -> rotate the components)
1199	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
1200	IF( srcv(jpr_itx2)%laction ) THEN
1201	CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
1202	ELSE
1203	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
1204	ENDIF
1205	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1206	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
1207	ENDIF
1208	! ! ======================= !
1209	ELSE ! use ocean stress !
1210	! ! ======================= !
1211	frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
1212	frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
1213	!
1214	ENDIF
1215	! ! ======================= !
1216	! ! put on ice grid !
1217	! ! ======================= !
1218	!
1219	! j+1 j -----V---F
1220	! ice stress on ice velocity point (cp_ice_msh) ! \|
1221	! (C-grid ==>(U,V) or B-grid ==> I or F) j \| T U
1222	! \| \|
1223	! j j-1 -I-------\|
1224	! (for I) \| \|
1225	! i-1 i i
1226	! i i+1 (for I)
1227	SELECT CASE ( cp_ice_msh )
1228	!
1229	CASE( 'I' ) ! B-grid ==> I
1230	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1231	CASE( 'U' )
1232	DO jj = 2, jpjm1 ! (U,V) ==> I
1233	DO ji = 2, jpim1 ! NO vector opt.
1234	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji-1,jj ,1) + frcv(jpr_itx1)%z3(ji-1,jj-1,1) )
1235	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji ,jj-1,1) + frcv(jpr_ity1)%z3(ji-1,jj-1,1) )
1236	END DO
1237	END DO
1238	CASE( 'F' )
1239	DO jj = 2, jpjm1 ! F ==> I
1240	DO ji = 2, jpim1 ! NO vector opt.
1241	p_taui(ji,jj) = frcv(jpr_itx1)%z3(ji-1,jj-1,1)
1242	p_tauj(ji,jj) = frcv(jpr_ity1)%z3(ji-1,jj-1,1)
1243	END DO
1244	END DO
1245	CASE( 'T' )
1246	DO jj = 2, jpjm1 ! T ==> I
1247	DO ji = 2, jpim1 ! NO vector opt.
1248	p_taui(ji,jj) = 0.25 * ( frcv(jpr_itx1)%z3(ji,jj ,1) + frcv(jpr_itx1)%z3(ji-1,jj ,1) &
1249	& + frcv(jpr_itx1)%z3(ji,jj-1,1) + frcv(jpr_itx1)%z3(ji-1,jj-1,1) )
1250	p_tauj(ji,jj) = 0.25 * ( frcv(jpr_ity1)%z3(ji,jj ,1) + frcv(jpr_ity1)%z3(ji-1,jj ,1) &
1251	& + frcv(jpr_oty1)%z3(ji,jj-1,1) + frcv(jpr_ity1)%z3(ji-1,jj-1,1) )
1252	END DO
1253	END DO
1254	CASE( 'I' )
1255	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! I ==> I
1256	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1257	END SELECT
1258	IF( srcv(jpr_itx1)%clgrid /= 'I' ) THEN
1259	CALL lbc_lnk( p_taui, 'I', -1. ) ; CALL lbc_lnk( p_tauj, 'I', -1. )
1260	ENDIF
1261	!
1262	CASE( 'F' ) ! B-grid ==> F
1263	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1264	CASE( 'U' )
1265	DO jj = 2, jpjm1 ! (U,V) ==> F
1266	DO ji = fs_2, fs_jpim1 ! vector opt.
1267	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji,jj,1) + frcv(jpr_itx1)%z3(ji ,jj+1,1) )
1268	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji,jj,1) + frcv(jpr_ity1)%z3(ji+1,jj ,1) )
1269	END DO
1270	END DO
1271	CASE( 'I' )
1272	DO jj = 2, jpjm1 ! I ==> F
1273	DO ji = 2, jpim1 ! NO vector opt.
1274	p_taui(ji,jj) = frcv(jpr_itx1)%z3(ji+1,jj+1,1)
1275	p_tauj(ji,jj) = frcv(jpr_ity1)%z3(ji+1,jj+1,1)
1276	END DO
1277	END DO
1278	CASE( 'T' )
1279	DO jj = 2, jpjm1 ! T ==> F
1280	DO ji = 2, jpim1 ! NO vector opt.
1281	p_taui(ji,jj) = 0.25 * ( frcv(jpr_itx1)%z3(ji,jj ,1) + frcv(jpr_itx1)%z3(ji+1,jj ,1) &
1282	& + frcv(jpr_itx1)%z3(ji,jj+1,1) + frcv(jpr_itx1)%z3(ji+1,jj+1,1) )
1283	p_tauj(ji,jj) = 0.25 * ( frcv(jpr_ity1)%z3(ji,jj ,1) + frcv(jpr_ity1)%z3(ji+1,jj ,1) &
1284	& + frcv(jpr_ity1)%z3(ji,jj+1,1) + frcv(jpr_ity1)%z3(ji+1,jj+1,1) )
1285	END DO
1286	END DO
1287	CASE( 'F' )
1288	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! F ==> F
1289	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1290	END SELECT
1291	IF( srcv(jpr_itx1)%clgrid /= 'F' ) THEN
1292	CALL lbc_lnk( p_taui, 'F', -1. ) ; CALL lbc_lnk( p_tauj, 'F', -1. )
1293	ENDIF
1294	!
1295	CASE( 'C' ) ! C-grid ==> U,V
1296	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1297	CASE( 'U' )
1298	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
1299	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1300	CASE( 'F' )
1301	DO jj = 2, jpjm1 ! F ==> (U,V)
1302	DO ji = fs_2, fs_jpim1 ! vector opt.
1303	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji,jj,1) + frcv(jpr_itx1)%z3(ji ,jj-1,1) )
1304	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(jj,jj,1) + frcv(jpr_ity1)%z3(ji-1,jj ,1) )
1305	END DO
1306	END DO
1307	CASE( 'T' )
1308	DO jj = 2, jpjm1 ! T ==> (U,V)
1309	DO ji = fs_2, fs_jpim1 ! vector opt.
1310	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
1311	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
1312	END DO
1313	END DO
1314	CASE( 'I' )
1315	DO jj = 2, jpjm1 ! I ==> (U,V)
1316	DO ji = 2, jpim1 ! NO vector opt.
1317	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj+1,1) + frcv(jpr_itx1)%z3(ji+1,jj ,1) )
1318	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji+1,jj+1,1) + frcv(jpr_ity1)%z3(ji ,jj+1,1) )
1319	END DO
1320	END DO
1321	END SELECT
1322	IF( srcv(jpr_itx1)%clgrid /= 'U' ) THEN
1323	CALL lbc_lnk( p_taui, 'U', -1. ) ; CALL lbc_lnk( p_tauj, 'V', -1. )
1324	ENDIF
1325	END SELECT
1326
1327	ENDIF
1328	!
1329	CALL wrk_dealloc( jpi,jpj, ztx, zty )
1330	!
1331	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_ice_tau')
1332	!
1333	END SUBROUTINE sbc_cpl_ice_tau
1334
1335
1336	SUBROUTINE sbc_cpl_ice_flx( p_frld, palbi, psst, pist )
1337	!!----------------------------------------------------------------------
1338	!! * ROUTINE sbc_cpl_ice_flx *
1339	!!
1340	!! ** Purpose : provide the heat and freshwater fluxes of the
1341	!! ocean-ice system.
1342	!!
1343	!! ** Method : transform the fields received from the atmosphere into
1344	!! surface heat and fresh water boundary condition for the
1345	!! ice-ocean system. The following fields are provided:
1346	!! * total non solar, solar and freshwater fluxes (qns_tot,
1347	!! qsr_tot and emp_tot) (total means weighted ice-ocean flux)
1348	!! NB: emp_tot include runoffs and calving.
1349	!! * fluxes over ice (qns_ice, qsr_ice, emp_ice) where
1350	!! emp_ice = sublimation - solid precipitation as liquid
1351	!! precipitation are re-routed directly to the ocean and
1352	!! runoffs and calving directly enter the ocean.
1353	!! * solid precipitation (sprecip), used to add to qns_tot
1354	!! the heat lost associated to melting solid precipitation
1355	!! over the ocean fraction.
1356	!! ===>> CAUTION here this changes the net heat flux received from
1357	!! the atmosphere
1358	!!
1359	!! - the fluxes have been separated from the stress as
1360	!! (a) they are updated at each ice time step compare to
1361	!! an update at each coupled time step for the stress, and
1362	!! (b) the conservative computation of the fluxes over the
1363	!! sea-ice area requires the knowledge of the ice fraction
1364	!! after the ice advection and before the ice thermodynamics,
1365	!! so that the stress is updated before the ice dynamics
1366	!! while the fluxes are updated after it.
1367	!!
1368	!! ** Action : update at each nf_ice time step:
1369	!! qns_tot, qsr_tot non-solar and solar total heat fluxes
1370	!! qns_ice, qsr_ice non-solar and solar heat fluxes over the ice
1371	!! emp_tot total evaporation - precipitation(liquid and solid) (-runoff)(-calving)
1372	!! emp_ice ice sublimation - solid precipitation over the ice
1373	!! dqns_ice d(non-solar heat flux)/d(Temperature) over the ice
1374	!! sprecip solid precipitation over the ocean
1375	!!----------------------------------------------------------------------
1376	REAL(wp), INTENT(in ), DIMENSION(:,:) :: p_frld ! lead fraction [0 to 1]
1377	! optional arguments, used only in 'mixed oce-ice' case
1378	REAL(wp), INTENT(in ), DIMENSION(:,:,:), OPTIONAL :: palbi ! all skies ice albedo
1379	REAL(wp), INTENT(in ), DIMENSION(:,: ), OPTIONAL :: psst ! sea surface temperature [Celsius]
1380	REAL(wp), INTENT(in ), DIMENSION(:,:,:), OPTIONAL :: pist ! ice surface temperature [Kelvin]
1381	!
1382	INTEGER :: jl ! dummy loop index
1383	REAL(wp), POINTER, DIMENSION(:,: ) :: zcptn, ztmp, zicefr, zmsk
1384	REAL(wp), POINTER, DIMENSION(:,: ) :: zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot
1385	REAL(wp), POINTER, DIMENSION(:,:,:) :: zqns_ice, zqsr_ice, zdqns_ice
1386	REAL(wp), POINTER, DIMENSION(:,: ) :: zevap, zsnw, zqns_oce, zqsr_oce, zqprec_ice, zqemp_oce ! for LIM3
1387	!!----------------------------------------------------------------------
1388	!
1389	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_ice_flx')
1390	!
1391	CALL wrk_alloc( jpi,jpj, zcptn, ztmp, zicefr, zmsk, zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot )
1392	CALL wrk_alloc( jpi,jpj,jpl, zqns_ice, zqsr_ice, zdqns_ice )
1393
1394	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1395	zicefr(:,:) = 1.- p_frld(:,:)
1396	zcptn(:,:) = rcp * sst_m(:,:)
1397	!
1398	! ! ========================= !
1399	! ! freshwater budget ! (emp)
1400	! ! ========================= !
1401	!
1402	! ! total Precipitation - total Evaporation (emp_tot)
1403	! ! solid precipitation - sublimation (emp_ice)
1404	! ! solid Precipitation (sprecip)
1405	! ! liquid + solid Precipitation (tprecip)
1406	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
1407	CASE( 'conservative' ) ! received fields: jpr_rain, jpr_snow, jpr_ievp, jpr_tevp
1408	zsprecip(:,:) = frcv(jpr_snow)%z3(:,:,1) ! May need to ensure positive here
1409	ztprecip(:,:) = frcv(jpr_rain)%z3(:,:,1) + zsprecip(:,:) ! May need to ensure positive here
1410	zemp_tot(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ztprecip(:,:)
1411	zemp_ice(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_snow)%z3(:,:,1)
1412	CALL iom_put( 'rain' , frcv(jpr_rain)%z3(:,:,1) ) ! liquid precipitation
1413	IF( iom_use('hflx_rain_cea') ) &
1414	CALL iom_put( 'hflx_rain_cea', frcv(jpr_rain)%z3(:,:,1) * zcptn(:,:) ) ! heat flux from liq. precip.
1415	IF( iom_use('evap_ao_cea') .OR. iom_use('hflx_evap_cea') ) &
1416	ztmp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:)
1417	IF( iom_use('evap_ao_cea' ) ) &
1418	CALL iom_put( 'evap_ao_cea' , ztmp ) ! ice-free oce evap (cell average)
1419	IF( iom_use('hflx_evap_cea') ) &
1420	CALL iom_put( 'hflx_evap_cea', ztmp(:,:) * zcptn(:,:) ) ! heat flux from from evap (cell average)
1421	CASE( 'oce and ice' ) ! received fields: jpr_sbpr, jpr_semp, jpr_oemp, jpr_ievp
1422	zemp_tot(:,:) = p_frld(:,:) * frcv(jpr_oemp)%z3(:,:,1) + zicefr(:,:) * frcv(jpr_sbpr)%z3(:,:,1)
1423	zemp_ice(:,:) = frcv(jpr_semp)%z3(:,:,1)
1424	zsprecip(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_semp)%z3(:,:,1)
1425	ztprecip(:,:) = frcv(jpr_semp)%z3(:,:,1) - frcv(jpr_sbpr)%z3(:,:,1) + zsprecip(:,:)
1426	END SELECT
1427
1428	IF( iom_use('subl_ai_cea') ) &
1429	CALL iom_put( 'subl_ai_cea', frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:) ) ! Sublimation over sea-ice (cell average)
1430	!
1431	! ! runoffs and calving (put in emp_tot)
1432	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1433	IF( srcv(jpr_cal)%laction ) THEN
1434	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1435	CALL iom_put( 'calving_cea', frcv(jpr_cal)%z3(:,:,1) )
1436	ENDIF
1437
1438	IF( ln_mixcpl ) THEN
1439	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1440	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1441	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1442	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1443	ELSE
1444	emp_tot(:,:) = zemp_tot(:,:)
1445	emp_ice(:,:) = zemp_ice(:,:)
1446	sprecip(:,:) = zsprecip(:,:)
1447	tprecip(:,:) = ztprecip(:,:)
1448	ENDIF
1449
1450	CALL iom_put( 'snowpre' , sprecip ) ! Snow
1451	IF( iom_use('snow_ao_cea') ) &
1452	CALL iom_put( 'snow_ao_cea', sprecip(:,:) * p_frld(:,:) ) ! Snow over ice-free ocean (cell average)
1453	IF( iom_use('snow_ai_cea') ) &
1454	CALL iom_put( 'snow_ai_cea', sprecip(:,:) * zicefr(:,:) ) ! Snow over sea-ice (cell average)
1455
1456	! ! ========================= !
1457	SELECT CASE( TRIM( sn_rcv_qns%cldes ) ) ! non solar heat fluxes ! (qns)
1458	! ! ========================= !
1459	CASE( 'oce only' ) ! the required field is directly provided
1460	zqns_tot(:,: ) = frcv(jpr_qnsoce)%z3(:,:,1)
1461	CASE( 'conservative' ) ! the required fields are directly provided
1462	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1463	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1464	zqns_ice(:,:,1:jpl) = frcv(jpr_qnsice)%z3(:,:,1:jpl)
1465	ELSE
1466	! Set all category values equal for the moment
1467	DO jl=1,jpl
1468	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1469	ENDDO
1470	ENDIF
1471	CASE( 'oce and ice' ) ! the total flux is computed from ocean and ice fluxes
1472	zqns_tot(:,: ) = p_frld(:,:) * frcv(jpr_qnsoce)%z3(:,:,1)
1473	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1474	DO jl=1,jpl
1475	zqns_tot(:,: ) = zqns_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qnsice)%z3(:,:,jl)
1476	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,jl)
1477	ENDDO
1478	ELSE
1479	qns_tot(:,: ) = qns_tot(:,:) + zicefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1480	DO jl=1,jpl
1481	zqns_tot(:,: ) = zqns_tot(:,:) + zicefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1482	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1483	ENDDO
1484	ENDIF
1485	CASE( 'mixed oce-ice' ) ! the ice flux is cumputed from the total flux, the SST and ice informations
1486	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1487	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1488	zqns_ice(:,:,1) = frcv(jpr_qnsmix)%z3(:,:,1) &
1489	& + frcv(jpr_dqnsdt)%z3(:,:,1) * ( pist(:,:,1) - ( (rt0 + psst(:,: ) ) * p_frld(:,:) &
1490	& + pist(:,:,1) * zicefr(:,:) ) )
1491	END SELECT
1492	!!gm
1493	!! currently it is taken into account in leads budget but not in the zqns_tot, and thus not in
1494	!! the flux that enter the ocean....
1495	!! moreover 1 - it is not diagnose anywhere....
1496	!! 2 - it is unclear for me whether this heat lost is taken into account in the atmosphere or not...
1497	!!
1498	!! similar job should be done for snow and precipitation temperature
1499	!
1500	IF( srcv(jpr_cal)%laction ) THEN ! Iceberg melting
1501	ztmp(:,:) = frcv(jpr_cal)%z3(:,:,1) * lfus ! add the latent heat of iceberg melting
1502	zqns_tot(:,:) = zqns_tot(:,:) - ztmp(:,:)
1503	IF( iom_use('hflx_cal_cea') ) &
1504	CALL iom_put( 'hflx_cal_cea', ztmp + frcv(jpr_cal)%z3(:,:,1) * zcptn(:,:) ) ! heat flux from calving
1505	ENDIF
1506
1507	ztmp(:,:) = p_frld(:,:) * zsprecip(:,:) * lfus
1508	IF( iom_use('hflx_snow_cea') ) CALL iom_put( 'hflx_snow_cea', ztmp + sprecip(:,:) * zcptn(:,:) ) ! heat flux from snow (cell average)
1509
1510	#if defined key_lim3
1511	CALL wrk_alloc( jpi,jpj, zevap, zsnw, zqns_oce, zqprec_ice, zqemp_oce )
1512
1513	! --- evaporation --- !
1514	! clem: evap_ice is set to 0 for LIM3 since we still do not know what to do with sublimation
1515	! the problem is: the atm. imposes both mass evaporation and heat removed from the snow/ice
1516	! but it is incoherent WITH the ice model
1517	DO jl=1,jpl
1518	evap_ice(:,:,jl) = 0._wp ! should be: frcv(jpr_ievp)%z3(:,:,1)
1519	ENDDO
1520	zevap(:,:) = zemp_tot(:,:) + ztprecip(:,:) ! evaporation over ocean
1521
1522	! --- evaporation minus precipitation --- !
1523	emp_oce(:,:) = emp_tot(:,:) - emp_ice(:,:)
1524
1525	! --- non solar flux over ocean --- !
1526	! note: p_frld cannot be = 0 since we limit the ice concentration to amax
1527	zqns_oce = 0._wp
1528	WHERE( p_frld /= 0._wp ) zqns_oce(:,:) = ( zqns_tot(:,:) - SUM( a_i * zqns_ice, dim=3 ) ) / p_frld(:,:)
1529
1530	! --- heat flux associated with emp --- !
1531	zsnw(:,:) = 0._wp
1532	CALL lim_thd_snwblow( p_frld, zsnw ) ! snow distribution over ice after wind blowing
1533	zqemp_oce(:,:) = - zevap(:,:) * p_frld(:,:) * zcptn(:,:) & ! evap
1534	& + ( ztprecip(:,:) - zsprecip(:,:) ) * zcptn(:,:) & ! liquid precip
1535	& + zsprecip(:,:) * ( 1._wp - zsnw ) * ( zcptn(:,:) - lfus ) ! solid precip over ocean
1536	qemp_ice(:,:) = - frcv(jpr_ievp)%z3(:,:,1) * zicefr(:,:) * zcptn(:,:) & ! ice evap
1537	& + zsprecip(:,:) * zsnw * ( zcptn(:,:) - lfus ) ! solid precip over ice
1538
1539	! --- heat content of precip over ice in J/m3 (to be used in 1D-thermo) --- !
1540	zqprec_ice(:,:) = rhosn * ( zcptn(:,:) - lfus )
1541
1542	! --- total non solar flux --- !
1543	zqns_tot(:,:) = zqns_tot(:,:) + qemp_ice(:,:) + zqemp_oce(:,:)
1544
1545	! --- in case both coupled/forced are active, we must mix values --- !
1546	IF( ln_mixcpl ) THEN
1547	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1548	qns_oce(:,:) = qns_oce(:,:) * xcplmask(:,:,0) + zqns_oce(:,:)* zmsk(:,:)
1549	DO jl=1,jpl
1550	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
1551	ENDDO
1552	qprec_ice(:,:) = qprec_ice(:,:) * xcplmask(:,:,0) + zqprec_ice(:,:)* zmsk(:,:)
1553	qemp_oce (:,:) = qemp_oce(:,:) * xcplmask(:,:,0) + zqemp_oce(:,:)* zmsk(:,:)
1554	!!clem evap_ice(:,:) = evap_ice(:,:) * xcplmask(:,:,0)
1555	ELSE
1556	qns_tot (:,: ) = zqns_tot (:,: )
1557	qns_oce (:,: ) = zqns_oce (:,: )
1558	qns_ice (:,:,:) = zqns_ice (:,:,:)
1559	qprec_ice(:,:) = zqprec_ice(:,:)
1560	qemp_oce (:,:) = zqemp_oce (:,:)
1561	ENDIF
1562
1563	CALL wrk_dealloc( jpi,jpj, zevap, zsnw, zqns_oce, zqprec_ice, zqemp_oce )
1564	#else
1565
1566	! clem: this formulation is certainly wrong... but better than it was...
1567	zqns_tot(:,:) = zqns_tot(:,:) & ! zqns_tot update over free ocean with:
1568	& - ztmp(:,:) & ! remove the latent heat flux of solid precip. melting
1569	& - ( zemp_tot(:,:) & ! remove the heat content of mass flux (assumed to be at SST)
1570	& - zemp_ice(:,:) * zicefr(:,:) ) * zcptn(:,:)
1571
1572	IF( ln_mixcpl ) THEN
1573	qns_tot(:,:) = qns(:,:) * p_frld(:,:) + SUM( qns_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1574	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1575	DO jl=1,jpl
1576	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
1577	ENDDO
1578	ELSE
1579	qns_tot(:,: ) = zqns_tot(:,: )
1580	qns_ice(:,:,:) = zqns_ice(:,:,:)
1581	ENDIF
1582
1583	#endif
1584
1585	! ! ========================= !
1586	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) ) ! solar heat fluxes ! (qsr)
1587	! ! ========================= !
1588	CASE( 'oce only' )
1589	zqsr_tot(:,: ) = MAX( 0._wp , frcv(jpr_qsroce)%z3(:,:,1) )
1590	CASE( 'conservative' )
1591	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1592	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1593	zqsr_ice(:,:,1:jpl) = frcv(jpr_qsrice)%z3(:,:,1:jpl)
1594	ELSE
1595	! Set all category values equal for the moment
1596	DO jl=1,jpl
1597	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1598	ENDDO
1599	ENDIF
1600	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1601	zqsr_ice(:,:,1) = frcv(jpr_qsrice)%z3(:,:,1)
1602	CASE( 'oce and ice' )
1603	zqsr_tot(:,: ) = p_frld(:,:) * frcv(jpr_qsroce)%z3(:,:,1)
1604	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1605	DO jl=1,jpl
1606	zqsr_tot(:,: ) = zqsr_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qsrice)%z3(:,:,jl)
1607	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,jl)
1608	ENDDO
1609	ELSE
1610	qsr_tot(:,: ) = qsr_tot(:,:) + zicefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
1611	DO jl=1,jpl
1612	zqsr_tot(:,: ) = zqsr_tot(:,:) + zicefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
1613	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1614	ENDDO
1615	ENDIF
1616	CASE( 'mixed oce-ice' )
1617	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1618	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1619	! Create solar heat flux over ice using incoming solar heat flux and albedos
1620	! ( see OASIS3 user guide, 5th edition, p39 )
1621	zqsr_ice(:,:,1) = frcv(jpr_qsrmix)%z3(:,:,1) * ( 1.- palbi(:,:,1) ) &
1622	& / ( 1.- ( albedo_oce_mix(:,: ) * p_frld(:,:) &
1623	& + palbi (:,:,1) * zicefr(:,:) ) )
1624	END SELECT
1625	IF( ln_dm2dc .AND. ln_cpl ) THEN ! modify qsr to include the diurnal cycle
1626	zqsr_tot(:,: ) = sbc_dcy( zqsr_tot(:,: ) )
1627	DO jl=1,jpl
1628	zqsr_ice(:,:,jl) = sbc_dcy( zqsr_ice(:,:,jl) )
1629	ENDDO
1630	ENDIF
1631
1632	#if defined key_lim3
1633	CALL wrk_alloc( jpi,jpj, zqsr_oce )
1634	! --- solar flux over ocean --- !
1635	! note: p_frld cannot be = 0 since we limit the ice concentration to amax
1636	zqsr_oce = 0._wp
1637	WHERE( p_frld /= 0._wp ) zqsr_oce(:,:) = ( zqsr_tot(:,:) - SUM( a_i * zqsr_ice, dim=3 ) ) / p_frld(:,:)
1638
1639	IF( ln_mixcpl ) THEN ; qsr_oce(:,:) = qsr_oce(:,:) * xcplmask(:,:,0) + zqsr_oce(:,:)* zmsk(:,:)
1640	ELSE ; qsr_oce(:,:) = zqsr_oce(:,:) ; ENDIF
1641
1642	CALL wrk_dealloc( jpi,jpj, zqsr_oce )
1643	#endif
1644
1645	IF( ln_mixcpl ) THEN
1646	qsr_tot(:,:) = qsr(:,:) * p_frld(:,:) + SUM( qsr_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1647	qsr_tot(:,:) = qsr_tot(:,:) * xcplmask(:,:,0) + zqsr_tot(:,:)* zmsk(:,:)
1648	DO jl=1,jpl
1649	qsr_ice(:,:,jl) = qsr_ice(:,:,jl) * xcplmask(:,:,0) + zqsr_ice(:,:,jl)* zmsk(:,:)
1650	ENDDO
1651	ELSE
1652	qsr_tot(:,: ) = zqsr_tot(:,: )
1653	qsr_ice(:,:,:) = zqsr_ice(:,:,:)
1654	ENDIF
1655
1656	! ! ========================= !
1657	SELECT CASE( TRIM( sn_rcv_dqnsdt%cldes ) ) ! d(qns)/dt !
1658	! ! ========================= !
1659	CASE ('coupled')
1660	IF ( TRIM(sn_rcv_dqnsdt%clcat) == 'yes' ) THEN
1661	zdqns_ice(:,:,1:jpl) = frcv(jpr_dqnsdt)%z3(:,:,1:jpl)
1662	ELSE
1663	! Set all category values equal for the moment
1664	DO jl=1,jpl
1665	zdqns_ice(:,:,jl) = frcv(jpr_dqnsdt)%z3(:,:,1)
1666	ENDDO
1667	ENDIF
1668	END SELECT
1669
1670	IF( ln_mixcpl ) THEN
1671	DO jl=1,jpl
1672	dqns_ice(:,:,jl) = dqns_ice(:,:,jl) * xcplmask(:,:,0) + zdqns_ice(:,:,jl) * zmsk(:,:)
1673	ENDDO
1674	ELSE
1675	dqns_ice(:,:,:) = zdqns_ice(:,:,:)
1676	ENDIF
1677
1678	! ! ========================= !
1679	SELECT CASE( TRIM( sn_rcv_iceflx%cldes ) ) ! topmelt and botmelt !
1680	! ! ========================= !
1681	CASE ('coupled')
1682	topmelt(:,:,:)=frcv(jpr_topm)%z3(:,:,:)
1683	botmelt(:,:,:)=frcv(jpr_botm)%z3(:,:,:)
1684	END SELECT
1685
1686	! Surface transimission parameter io (Maykut Untersteiner , 1971 ; Ebert and Curry, 1993 )
1687	! Used for LIM2 and LIM3
1688	! Coupled case: since cloud cover is not received from atmosphere
1689	! ===> used prescribed cloud fraction representative for polar oceans in summer (0.81)
1690	fr1_i0(:,:) = ( 0.18 * ( 1.0 - cldf_ice ) + 0.35 * cldf_ice )
1691	fr2_i0(:,:) = ( 0.82 * ( 1.0 - cldf_ice ) + 0.65 * cldf_ice )
1692
1693	CALL wrk_dealloc( jpi,jpj, zcptn, ztmp, zicefr, zmsk, zemp_tot, zemp_ice, zsprecip, ztprecip, zqns_tot, zqsr_tot )
1694	CALL wrk_dealloc( jpi,jpj,jpl, zqns_ice, zqsr_ice, zdqns_ice )
1695	!
1696	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_ice_flx')
1697	!
1698	END SUBROUTINE sbc_cpl_ice_flx
1699
1700
1701	SUBROUTINE sbc_cpl_snd( kt )
1702	!!----------------------------------------------------------------------
1703	!! * ROUTINE sbc_cpl_snd *
1704	!!
1705	!! ** Purpose : provide the ocean-ice informations to the atmosphere
1706	!!
1707	!! ** Method : send to the atmosphere through a call to cpl_snd
1708	!! all the needed fields (as defined in sbc_cpl_init)
1709	!!----------------------------------------------------------------------
1710	INTEGER, INTENT(in) :: kt
1711	!
1712	INTEGER :: ji, jj, jl ! dummy loop indices
1713	INTEGER :: isec, info ! local integer
1714	REAL(wp) :: zumax, zvmax
1715	REAL(wp), POINTER, DIMENSION(:,:) :: zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1
1716	REAL(wp), POINTER, DIMENSION(:,:,:) :: ztmp3, ztmp4
1717	!!----------------------------------------------------------------------
1718	!
1719	IF( nn_timing == 1 ) CALL timing_start('sbc_cpl_snd')
1720	!
1721	CALL wrk_alloc( jpi,jpj, zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1 )
1722	CALL wrk_alloc( jpi,jpj,jpl, ztmp3, ztmp4 )
1723
1724	isec = ( kt - nit000 ) * NINT(rdttra(1)) ! date of exchanges
1725
1726	zfr_l(:,:) = 1.- fr_i(:,:)
1727	! ! ------------------------- !
1728	! ! Surface temperature ! in Kelvin
1729	! ! ------------------------- !
1730	IF( ssnd(jps_toce)%laction .OR. ssnd(jps_tice)%laction .OR. ssnd(jps_tmix)%laction ) THEN
1731
1732	IF ( nn_components == jp_iam_opa ) THEN
1733	ztmp1(:,:) = tsn(:,:,1,jp_tem) ! send temperature as it is (potential or conservative) -> use of ln_useCT on the received part
1734	ELSE
1735	! we must send the surface potential temperature
1736	IF( ln_useCT ) THEN ; ztmp1(:,:) = eos_pt_from_ct( tsn(:,:,1,jp_tem), tsn(:,:,1,jp_sal) )
1737	ELSE ; ztmp1(:,:) = tsn(:,:,1,jp_tem)
1738	ENDIF
1739	!
1740	SELECT CASE( sn_snd_temp%cldes)
1741	CASE( 'oce only' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
1742	CASE( 'oce and ice' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
1743	SELECT CASE( sn_snd_temp%clcat )
1744	CASE( 'yes' )
1745	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl)
1746	CASE( 'no' )
1747	WHERE( SUM( a_i, dim=3 ) /= 0. )
1748	ztmp3(:,:,1) = SUM( tn_ice * a_i, dim=3 ) / SUM( a_i, dim=3 )
1749	ELSEWHERE
1750	ztmp3(:,:,1) = rt0
1751	END WHERE
1752	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
1753	END SELECT
1754	CASE( 'weighted oce and ice' ) ; ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
1755	SELECT CASE( sn_snd_temp%clcat )
1756	CASE( 'yes' )
1757	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
1758	CASE( 'no' )
1759	ztmp3(:,:,:) = 0.0
1760	DO jl=1,jpl
1761	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
1762	ENDDO
1763	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
1764	END SELECT
1765	CASE( 'mixed oce-ice' )
1766	ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
1767	DO jl=1,jpl
1768	ztmp1(:,:) = ztmp1(:,:) + tn_ice(:,:,jl) * a_i(:,:,jl)
1769	ENDDO
1770	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%cldes' )
1771	END SELECT
1772	ENDIF
1773	IF( ssnd(jps_toce)%laction ) CALL cpl_snd( jps_toce, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1774	IF( ssnd(jps_tice)%laction ) CALL cpl_snd( jps_tice, isec, ztmp3, info )
1775	IF( ssnd(jps_tmix)%laction ) CALL cpl_snd( jps_tmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1776	ENDIF
1777	! ! ------------------------- !
1778	! ! Albedo !
1779	! ! ------------------------- !
1780	IF( ssnd(jps_albice)%laction ) THEN ! ice
1781	SELECT CASE( sn_snd_alb%cldes )
1782	CASE( 'ice' )
1783	SELECT CASE( sn_snd_alb%clcat )
1784	CASE( 'yes' )
1785	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl)
1786	CASE( 'no' )
1787	WHERE( SUM( a_i, dim=3 ) /= 0. )
1788	ztmp1(:,:) = SUM( alb_ice (:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 ) / SUM( a_i(:,:,1:jpl), dim=3 )
1789	ELSEWHERE
1790	ztmp1(:,:) = albedo_oce_mix(:,:)
1791	END WHERE
1792	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%clcat' )
1793	END SELECT
1794	CASE( 'weighted ice' ) ;
1795	SELECT CASE( sn_snd_alb%clcat )
1796	CASE( 'yes' )
1797	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
1798	CASE( 'no' )
1799	WHERE( fr_i (:,:) > 0. )
1800	ztmp1(:,:) = SUM ( alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 )
1801	ELSEWHERE
1802	ztmp1(:,:) = 0.
1803	END WHERE
1804	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ice%clcat' )
1805	END SELECT
1806	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%cldes' )
1807	END SELECT
1808
1809	SELECT CASE( sn_snd_alb%clcat )
1810	CASE( 'yes' )
1811	CALL cpl_snd( jps_albice, isec, ztmp3, info ) !-> MV this has never been checked in coupled mode
1812	CASE( 'no' )
1813	CALL cpl_snd( jps_albice, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1814	END SELECT
1815	ENDIF
1816
1817	IF( ssnd(jps_albmix)%laction ) THEN ! mixed ice-ocean
1818	ztmp1(:,:) = albedo_oce_mix(:,:) * zfr_l(:,:)
1819	DO jl=1,jpl
1820	ztmp1(:,:) = ztmp1(:,:) + alb_ice(:,:,jl) * a_i(:,:,jl)
1821	ENDDO
1822	CALL cpl_snd( jps_albmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
1823	ENDIF
1824	! ! ------------------------- !
1825	! ! Ice fraction & Thickness !
1826	! ! ------------------------- !
1827	! Send ice fraction field to atmosphere
1828	IF( ssnd(jps_fice)%laction ) THEN
1829	SELECT CASE( sn_snd_thick%clcat )
1830	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
1831	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
1832	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1833	END SELECT
1834	IF( ssnd(jps_fice)%laction ) CALL cpl_snd( jps_fice, isec, ztmp3, info )
1835	ENDIF
1836
1837	! Send ice fraction field to OPA (sent by SAS in SAS-OPA coupling)
1838	IF( ssnd(jps_fice2)%laction ) THEN
1839	ztmp3(:,:,1) = fr_i(:,:)
1840	IF( ssnd(jps_fice2)%laction ) CALL cpl_snd( jps_fice2, isec, ztmp3, info )
1841	ENDIF
1842
1843	! Send ice and snow thickness field
1844	IF( ssnd(jps_hice)%laction .OR. ssnd(jps_hsnw)%laction ) THEN
1845	SELECT CASE( sn_snd_thick%cldes)
1846	CASE( 'none' ) ! nothing to do
1847	CASE( 'weighted ice and snow' )
1848	SELECT CASE( sn_snd_thick%clcat )
1849	CASE( 'yes' )
1850	ztmp3(:,:,1:jpl) = ht_i(:,:,1:jpl) * a_i(:,:,1:jpl)
1851	ztmp4(:,:,1:jpl) = ht_s(:,:,1:jpl) * a_i(:,:,1:jpl)
1852	CASE( 'no' )
1853	ztmp3(:,:,:) = 0.0 ; ztmp4(:,:,:) = 0.0
1854	DO jl=1,jpl
1855	ztmp3(:,:,1) = ztmp3(:,:,1) + ht_i(:,:,jl) * a_i(:,:,jl)
1856	ztmp4(:,:,1) = ztmp4(:,:,1) + ht_s(:,:,jl) * a_i(:,:,jl)
1857	ENDDO
1858	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1859	END SELECT
1860	CASE( 'ice and snow' )
1861	SELECT CASE( sn_snd_thick%clcat )
1862	CASE( 'yes' )
1863	ztmp3(:,:,1:jpl) = ht_i(:,:,1:jpl)
1864	ztmp4(:,:,1:jpl) = ht_s(:,:,1:jpl)
1865	CASE( 'no' )
1866	WHERE( SUM( a_i, dim=3 ) /= 0. )
1867	ztmp3(:,:,1) = SUM( ht_i * a_i, dim=3 ) / SUM( a_i, dim=3 )
1868	ztmp4(:,:,1) = SUM( ht_s * a_i, dim=3 ) / SUM( a_i, dim=3 )
1869	ELSEWHERE
1870	ztmp3(:,:,1) = 0.
1871	ztmp4(:,:,1) = 0.
1872	END WHERE
1873	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
1874	END SELECT
1875	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%cldes' )
1876	END SELECT
1877	IF( ssnd(jps_hice)%laction ) CALL cpl_snd( jps_hice, isec, ztmp3, info )
1878	IF( ssnd(jps_hsnw)%laction ) CALL cpl_snd( jps_hsnw, isec, ztmp4, info )
1879	ENDIF
1880	!
1881	#if defined key_cpl_carbon_cycle
1882	! ! ------------------------- !
1883	! ! CO2 flux from PISCES !
1884	! ! ------------------------- !
1885	IF( ssnd(jps_co2)%laction ) CALL cpl_snd( jps_co2, isec, RESHAPE ( oce_co2, (/jpi,jpj,1/) ) , info )
1886	!
1887	#endif
1888	! ! ------------------------- !
1889	IF( ssnd(jps_ocx1)%laction ) THEN ! Surface current !
1890	! ! ------------------------- !
1891	!
1892	! j+1 j -----V---F
1893	! surface velocity always sent from T point ! \|
1894	! j \| T U
1895	! \| \|
1896	! j j-1 -I-------\|
1897	! (for I) \| \|
1898	! i-1 i i
1899	! i i+1 (for I)
1900	IF( nn_components == jp_iam_opa ) THEN
1901	zotx1(:,:) = un(:,:,1)
1902	zoty1(:,:) = vn(:,:,1)
1903	ELSE
1904	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
1905	CASE( 'oce only' ) ! C-grid ==> T
1906	DO jj = 2, jpjm1
1907	DO ji = fs_2, fs_jpim1 ! vector opt.
1908	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
1909	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) )
1910	END DO
1911	END DO
1912	CASE( 'weighted oce and ice' )
1913	SELECT CASE ( cp_ice_msh )
1914	CASE( 'C' ) ! Ocean and Ice on C-grid ==> T
1915	DO jj = 2, jpjm1
1916	DO ji = fs_2, fs_jpim1 ! vector opt.
1917	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
1918	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
1919	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
1920	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
1921	END DO
1922	END DO
1923	CASE( 'I' ) ! Ocean on C grid, Ice on I-point (B-grid) ==> T
1924	DO jj = 2, jpjm1
1925	DO ji = 2, jpim1 ! NO vector opt.
1926	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj)
1927	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj)
1928	zitx1(ji,jj) = 0.25 * ( u_ice(ji+1,jj+1) + u_ice(ji,jj+1) &
1929	& + u_ice(ji+1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1930	zity1(ji,jj) = 0.25 * ( v_ice(ji+1,jj+1) + v_ice(ji,jj+1) &
1931	& + v_ice(ji+1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1932	END DO
1933	END DO
1934	CASE( 'F' ) ! Ocean on C grid, Ice on F-point (B-grid) ==> T
1935	DO jj = 2, jpjm1
1936	DO ji = 2, jpim1 ! NO vector opt.
1937	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj)
1938	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj)
1939	zitx1(ji,jj) = 0.25 * ( u_ice(ji-1,jj-1) + u_ice(ji,jj-1) &
1940	& + u_ice(ji-1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1941	zity1(ji,jj) = 0.25 * ( v_ice(ji-1,jj-1) + v_ice(ji,jj-1) &
1942	& + v_ice(ji-1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1943	END DO
1944	END DO
1945	END SELECT
1946	CALL lbc_lnk( zitx1, 'T', -1. ) ; CALL lbc_lnk( zity1, 'T', -1. )
1947	CASE( 'mixed oce-ice' )
1948	SELECT CASE ( cp_ice_msh )
1949	CASE( 'C' ) ! Ocean and Ice on C-grid ==> T
1950	DO jj = 2, jpjm1
1951	DO ji = fs_2, fs_jpim1 ! vector opt.
1952	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
1953	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
1954	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
1955	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
1956	END DO
1957	END DO
1958	CASE( 'I' ) ! Ocean on C grid, Ice on I-point (B-grid) ==> T
1959	DO jj = 2, jpjm1
1960	DO ji = 2, jpim1 ! NO vector opt.
1961	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj) &
1962	& + 0.25 * ( u_ice(ji+1,jj+1) + u_ice(ji,jj+1) &
1963	& + u_ice(ji+1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1964	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj) &
1965	& + 0.25 * ( v_ice(ji+1,jj+1) + v_ice(ji,jj+1) &
1966	& + v_ice(ji+1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1967	END DO
1968	END DO
1969	CASE( 'F' ) ! Ocean on C grid, Ice on F-point (B-grid) ==> T
1970	DO jj = 2, jpjm1
1971	DO ji = 2, jpim1 ! NO vector opt.
1972	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) ) * zfr_l(ji,jj) &
1973	& + 0.25 * ( u_ice(ji-1,jj-1) + u_ice(ji,jj-1) &
1974	& + u_ice(ji-1,jj ) + u_ice(ji,jj ) ) * fr_i(ji,jj)
1975	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) ) * zfr_l(ji,jj) &
1976	& + 0.25 * ( v_ice(ji-1,jj-1) + v_ice(ji,jj-1) &
1977	& + v_ice(ji-1,jj ) + v_ice(ji,jj ) ) * fr_i(ji,jj)
1978	END DO
1979	END DO
1980	END SELECT
1981	END SELECT
1982	CALL lbc_lnk( zotx1, ssnd(jps_ocx1)%clgrid, -1. ) ; CALL lbc_lnk( zoty1, ssnd(jps_ocy1)%clgrid, -1. )
1983	!
1984	ENDIF
1985	!
1986	!
1987	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
1988	! ! Ocean component
1989	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
1990	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
1991	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
1992	zoty1(:,:) = ztmp2(:,:)
1993	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
1994	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
1995	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
1996	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
1997	zity1(:,:) = ztmp2(:,:)
1998	ENDIF
1999	ENDIF
2000	!
2001	! spherical coordinates to cartesian -> 2 components to 3 components
2002	IF( TRIM( sn_snd_crt%clvref ) == 'cartesian' ) THEN
2003	ztmp1(:,:) = zotx1(:,:) ! ocean currents
2004	ztmp2(:,:) = zoty1(:,:)
2005	CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2006	!
2007	IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2008	ztmp1(:,:) = zitx1(:,:)
2009	ztmp1(:,:) = zity1(:,:)
2010	CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2011	ENDIF
2012	ENDIF
2013	!
2014	IF( ssnd(jps_ocx1)%laction ) CALL cpl_snd( jps_ocx1, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2015	IF( ssnd(jps_ocy1)%laction ) CALL cpl_snd( jps_ocy1, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2016	IF( ssnd(jps_ocz1)%laction ) CALL cpl_snd( jps_ocz1, isec, RESHAPE ( zotz1, (/jpi,jpj,1/) ), info ) ! ocean z current 1st grid
2017	!
2018	IF( ssnd(jps_ivx1)%laction ) CALL cpl_snd( jps_ivx1, isec, RESHAPE ( zitx1, (/jpi,jpj,1/) ), info ) ! ice x current 1st grid
2019	IF( ssnd(jps_ivy1)%laction ) CALL cpl_snd( jps_ivy1, isec, RESHAPE ( zity1, (/jpi,jpj,1/) ), info ) ! ice y current 1st grid
2020	IF( ssnd(jps_ivz1)%laction ) CALL cpl_snd( jps_ivz1, isec, RESHAPE ( zitz1, (/jpi,jpj,1/) ), info ) ! ice z current 1st grid
2021	!
2022	ENDIF
2023	!
2024	!
2025	! Fields sent by OPA to SAS when doing OPA<->SAS coupling
2026	! ! SSH
2027	IF( ssnd(jps_ssh )%laction ) THEN
2028	! ! removed inverse barometer ssh when Patm
2029	! forcing is used (for sea-ice dynamics)
2030	IF( ln_apr_dyn ) THEN ; ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2031	ELSE ; ztmp1(:,:) = sshn(:,:)
2032	ENDIF
2033	CALL cpl_snd( jps_ssh , isec, RESHAPE ( ztmp1 , (/jpi,jpj,1/) ), info )
2034
2035	ENDIF
2036	! ! SSS
2037	IF( ssnd(jps_soce )%laction ) THEN
2038	CALL cpl_snd( jps_soce , isec, RESHAPE ( tsn(:,:,1,jp_sal), (/jpi,jpj,1/) ), info )
2039	ENDIF
2040	! ! first T level thickness
2041	IF( ssnd(jps_e3t1st )%laction ) THEN
2042	CALL cpl_snd( jps_e3t1st, isec, RESHAPE ( fse3t_n(:,:,1) , (/jpi,jpj,1/) ), info )
2043	ENDIF
2044	! ! Qsr fraction
2045	IF( ssnd(jps_fraqsr)%laction ) THEN
2046	CALL cpl_snd( jps_fraqsr, isec, RESHAPE ( fraqsr_1lev(:,:) , (/jpi,jpj,1/) ), info )
2047	ENDIF
2048	!
2049	! Fields sent by SAS to OPA when OASIS coupling
2050	! ! Solar heat flux
2051	IF( ssnd(jps_qsroce)%laction ) CALL cpl_snd( jps_qsroce, isec, RESHAPE ( qsr , (/jpi,jpj,1/) ), info )
2052	IF( ssnd(jps_qnsoce)%laction ) CALL cpl_snd( jps_qnsoce, isec, RESHAPE ( qns , (/jpi,jpj,1/) ), info )
2053	IF( ssnd(jps_oemp )%laction ) CALL cpl_snd( jps_oemp , isec, RESHAPE ( emp , (/jpi,jpj,1/) ), info )
2054	IF( ssnd(jps_sflx )%laction ) CALL cpl_snd( jps_sflx , isec, RESHAPE ( sfx , (/jpi,jpj,1/) ), info )
2055	IF( ssnd(jps_otx1 )%laction ) CALL cpl_snd( jps_otx1 , isec, RESHAPE ( utau, (/jpi,jpj,1/) ), info )
2056	IF( ssnd(jps_oty1 )%laction ) CALL cpl_snd( jps_oty1 , isec, RESHAPE ( vtau, (/jpi,jpj,1/) ), info )
2057	IF( ssnd(jps_rnf )%laction ) CALL cpl_snd( jps_rnf , isec, RESHAPE ( rnf , (/jpi,jpj,1/) ), info )
2058	IF( ssnd(jps_taum )%laction ) CALL cpl_snd( jps_taum , isec, RESHAPE ( taum, (/jpi,jpj,1/) ), info )
2059
2060	CALL wrk_dealloc( jpi,jpj, zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1 )
2061	CALL wrk_dealloc( jpi,jpj,jpl, ztmp3, ztmp4 )
2062	!
2063	IF( nn_timing == 1 ) CALL timing_stop('sbc_cpl_snd')
2064	!
2065	END SUBROUTINE sbc_cpl_snd
2066
2067	!!======================================================================
2068	END MODULE sbccpl

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