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sbccpl.F90 in NEMO/releases/r4.0/r4.0-HEAD/src/OCE/SBC – NEMO

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source: NEMO/releases/r4.0/r4.0-HEAD/src/OCE/SBC/sbccpl.F90 @ 13066

Last change on this file since 13066 was 13066, checked in by smasson, 4 years ago
r4.0-HEAD: sbccpl bugfix when sending 'oce and ice' without ice categories, see #2434
Property svn:keywords set to `Id`
File size: 153.8 KB

Line
1	MODULE sbccpl
2	!!======================================================================
3	!! * MODULE sbccpl *
4	!! Surface Boundary Condition : momentum, heat and freshwater fluxes in coupled mode
5	!!======================================================================
6	!! History : 2.0 ! 2007-06 (R. Redler, N. Keenlyside, W. Park) Original code split into flxmod & taumod
7	!! 3.0 ! 2008-02 (G. Madec, C Talandier) surface module
8	!! 3.1 ! 2009_02 (G. Madec, S. Masson, E. Maisonave, A. Caubel) generic coupled interface
9	!! 3.4 ! 2011_11 (C. Harris) more flexibility + multi-category fields
10	!!----------------------------------------------------------------------
11
12	!!----------------------------------------------------------------------
13	!! namsbc_cpl : coupled formulation namlist
14	!! sbc_cpl_init : initialisation of the coupled exchanges
15	!! sbc_cpl_rcv : receive fields from the atmosphere over the ocean (ocean only)
16	!! receive stress from the atmosphere over the ocean (ocean-ice case)
17	!! sbc_cpl_ice_tau : receive stress from the atmosphere over ice
18	!! sbc_cpl_ice_flx : receive fluxes from the atmosphere over ice
19	!! sbc_cpl_snd : send fields to the atmosphere
20	!!----------------------------------------------------------------------
21	USE dom_oce ! ocean space and time domain
22	USE sbc_oce ! Surface boundary condition: ocean fields
23	USE trc_oce ! share SMS/Ocean variables
24	USE sbc_ice ! Surface boundary condition: ice fields
25	USE sbcapr ! Stochastic param. : ???
26	USE sbcdcy ! surface boundary condition: diurnal cycle
27	USE sbcwave ! surface boundary condition: waves
28	USE phycst ! physical constants
29	#if defined key_si3
30	USE ice ! ice variables
31	#endif
32	USE cpl_oasis3 ! OASIS3 coupling
33	USE geo2ocean !
34	USE oce , ONLY : tsn, un, vn, sshn, ub, vb, sshb, fraqsr_1lev
35	USE ocealb !
36	USE eosbn2 !
37	USE sbcrnf , ONLY : l_rnfcpl
38	USE sbcisf , ONLY : l_isfcpl
39	#if defined key_cice
40	USE ice_domain_size, only: ncat
41	#endif
42	#if defined key_si3
43	USE icethd_dh ! for CALL ice_thd_snwblow
44	#endif
45	!
46	USE in_out_manager ! I/O manager
47	USE iom ! NetCDF library
48	USE lib_mpp ! distribued memory computing library
49	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
50
51	IMPLICIT NONE
52	PRIVATE
53
54	PUBLIC sbc_cpl_init ! routine called by sbcmod.F90
55	PUBLIC sbc_cpl_rcv ! routine called by icestp.F90
56	PUBLIC sbc_cpl_snd ! routine called by step.F90
57	PUBLIC sbc_cpl_ice_tau ! routine called by icestp.F90
58	PUBLIC sbc_cpl_ice_flx ! routine called by icestp.F90
59	PUBLIC sbc_cpl_alloc ! routine called in sbcice_cice.F90
60
61	INTEGER, PARAMETER :: jpr_otx1 = 1 ! 3 atmosphere-ocean stress components on grid 1
62	INTEGER, PARAMETER :: jpr_oty1 = 2 !
63	INTEGER, PARAMETER :: jpr_otz1 = 3 !
64	INTEGER, PARAMETER :: jpr_otx2 = 4 ! 3 atmosphere-ocean stress components on grid 2
65	INTEGER, PARAMETER :: jpr_oty2 = 5 !
66	INTEGER, PARAMETER :: jpr_otz2 = 6 !
67	INTEGER, PARAMETER :: jpr_itx1 = 7 ! 3 atmosphere-ice stress components on grid 1
68	INTEGER, PARAMETER :: jpr_ity1 = 8 !
69	INTEGER, PARAMETER :: jpr_itz1 = 9 !
70	INTEGER, PARAMETER :: jpr_itx2 = 10 ! 3 atmosphere-ice stress components on grid 2
71	INTEGER, PARAMETER :: jpr_ity2 = 11 !
72	INTEGER, PARAMETER :: jpr_itz2 = 12 !
73	INTEGER, PARAMETER :: jpr_qsroce = 13 ! Qsr above the ocean
74	INTEGER, PARAMETER :: jpr_qsrice = 14 ! Qsr above the ice
75	INTEGER, PARAMETER :: jpr_qsrmix = 15
76	INTEGER, PARAMETER :: jpr_qnsoce = 16 ! Qns above the ocean
77	INTEGER, PARAMETER :: jpr_qnsice = 17 ! Qns above the ice
78	INTEGER, PARAMETER :: jpr_qnsmix = 18
79	INTEGER, PARAMETER :: jpr_rain = 19 ! total liquid precipitation (rain)
80	INTEGER, PARAMETER :: jpr_snow = 20 ! solid precipitation over the ocean (snow)
81	INTEGER, PARAMETER :: jpr_tevp = 21 ! total evaporation
82	INTEGER, PARAMETER :: jpr_ievp = 22 ! solid evaporation (sublimation)
83	INTEGER, PARAMETER :: jpr_sbpr = 23 ! sublimation - liquid precipitation - solid precipitation
84	INTEGER, PARAMETER :: jpr_semp = 24 ! solid freshwater budget (sublimation - snow)
85	INTEGER, PARAMETER :: jpr_oemp = 25 ! ocean freshwater budget (evap - precip)
86	INTEGER, PARAMETER :: jpr_w10m = 26 ! 10m wind
87	INTEGER, PARAMETER :: jpr_dqnsdt = 27 ! d(Q non solar)/d(temperature)
88	INTEGER, PARAMETER :: jpr_rnf = 28 ! runoffs
89	INTEGER, PARAMETER :: jpr_cal = 29 ! calving
90	INTEGER, PARAMETER :: jpr_taum = 30 ! wind stress module
91	INTEGER, PARAMETER :: jpr_co2 = 31
92	INTEGER, PARAMETER :: jpr_topm = 32 ! topmeltn
93	INTEGER, PARAMETER :: jpr_botm = 33 ! botmeltn
94	INTEGER, PARAMETER :: jpr_sflx = 34 ! salt flux
95	INTEGER, PARAMETER :: jpr_toce = 35 ! ocean temperature
96	INTEGER, PARAMETER :: jpr_soce = 36 ! ocean salinity
97	INTEGER, PARAMETER :: jpr_ocx1 = 37 ! ocean current on grid 1
98	INTEGER, PARAMETER :: jpr_ocy1 = 38 !
99	INTEGER, PARAMETER :: jpr_ssh = 39 ! sea surface height
100	INTEGER, PARAMETER :: jpr_fice = 40 ! ice fraction
101	INTEGER, PARAMETER :: jpr_e3t1st = 41 ! first T level thickness
102	INTEGER, PARAMETER :: jpr_fraqsr = 42 ! fraction of solar net radiation absorbed in the first ocean level
103	INTEGER, PARAMETER :: jpr_mslp = 43 ! mean sea level pressure
104	INTEGER, PARAMETER :: jpr_hsig = 44 ! Hsig
105	INTEGER, PARAMETER :: jpr_phioc = 45 ! Wave=>ocean energy flux
106	INTEGER, PARAMETER :: jpr_sdrftx = 46 ! Stokes drift on grid 1
107	INTEGER, PARAMETER :: jpr_sdrfty = 47 ! Stokes drift on grid 2
108	INTEGER, PARAMETER :: jpr_wper = 48 ! Mean wave period
109	INTEGER, PARAMETER :: jpr_wnum = 49 ! Mean wavenumber
110	INTEGER, PARAMETER :: jpr_tauwoc = 50 ! Stress fraction adsorbed by waves
111	INTEGER, PARAMETER :: jpr_wdrag = 51 ! Neutral surface drag coefficient
112	INTEGER, PARAMETER :: jpr_isf = 52
113	INTEGER, PARAMETER :: jpr_icb = 53
114	INTEGER, PARAMETER :: jpr_wfreq = 54 ! Wave peak frequency
115	INTEGER, PARAMETER :: jpr_tauwx = 55 ! x component of the ocean stress from waves
116	INTEGER, PARAMETER :: jpr_tauwy = 56 ! y component of the ocean stress from waves
117	INTEGER, PARAMETER :: jpr_ts_ice = 57 ! Sea ice surface temp
118
119	INTEGER, PARAMETER :: jprcv = 57 ! total number of fields received
120
121	INTEGER, PARAMETER :: jps_fice = 1 ! ice fraction sent to the atmosphere
122	INTEGER, PARAMETER :: jps_toce = 2 ! ocean temperature
123	INTEGER, PARAMETER :: jps_tice = 3 ! ice temperature
124	INTEGER, PARAMETER :: jps_tmix = 4 ! mixed temperature (ocean+ice)
125	INTEGER, PARAMETER :: jps_albice = 5 ! ice albedo
126	INTEGER, PARAMETER :: jps_albmix = 6 ! mixed albedo
127	INTEGER, PARAMETER :: jps_hice = 7 ! ice thickness
128	INTEGER, PARAMETER :: jps_hsnw = 8 ! snow thickness
129	INTEGER, PARAMETER :: jps_ocx1 = 9 ! ocean current on grid 1
130	INTEGER, PARAMETER :: jps_ocy1 = 10 !
131	INTEGER, PARAMETER :: jps_ocz1 = 11 !
132	INTEGER, PARAMETER :: jps_ivx1 = 12 ! ice current on grid 1
133	INTEGER, PARAMETER :: jps_ivy1 = 13 !
134	INTEGER, PARAMETER :: jps_ivz1 = 14 !
135	INTEGER, PARAMETER :: jps_co2 = 15
136	INTEGER, PARAMETER :: jps_soce = 16 ! ocean salinity
137	INTEGER, PARAMETER :: jps_ssh = 17 ! sea surface height
138	INTEGER, PARAMETER :: jps_qsroce = 18 ! Qsr above the ocean
139	INTEGER, PARAMETER :: jps_qnsoce = 19 ! Qns above the ocean
140	INTEGER, PARAMETER :: jps_oemp = 20 ! ocean freshwater budget (evap - precip)
141	INTEGER, PARAMETER :: jps_sflx = 21 ! salt flux
142	INTEGER, PARAMETER :: jps_otx1 = 22 ! 2 atmosphere-ocean stress components on grid 1
143	INTEGER, PARAMETER :: jps_oty1 = 23 !
144	INTEGER, PARAMETER :: jps_rnf = 24 ! runoffs
145	INTEGER, PARAMETER :: jps_taum = 25 ! wind stress module
146	INTEGER, PARAMETER :: jps_fice2 = 26 ! ice fraction sent to OPA (by SAS when doing SAS-OPA coupling)
147	INTEGER, PARAMETER :: jps_e3t1st = 27 ! first level depth (vvl)
148	INTEGER, PARAMETER :: jps_fraqsr = 28 ! fraction of solar net radiation absorbed in the first ocean level
149	INTEGER, PARAMETER :: jps_ficet = 29 ! total ice fraction
150	INTEGER, PARAMETER :: jps_ocxw = 30 ! currents on grid 1
151	INTEGER, PARAMETER :: jps_ocyw = 31 ! currents on grid 2
152	INTEGER, PARAMETER :: jps_wlev = 32 ! water level
153	INTEGER, PARAMETER :: jps_fice1 = 33 ! first-order ice concentration (for semi-implicit coupling of atmos-ice fluxes)
154	INTEGER, PARAMETER :: jps_a_p = 34 ! meltpond area
155	INTEGER, PARAMETER :: jps_ht_p = 35 ! meltpond thickness
156	INTEGER, PARAMETER :: jps_kice = 36 ! sea ice effective conductivity
157	INTEGER, PARAMETER :: jps_sstfrz = 37 ! sea surface freezing temperature
158	INTEGER, PARAMETER :: jps_ttilyr = 38 ! sea ice top layer temp
159
160	INTEGER, PARAMETER :: jpsnd = 38 ! total number of fields sent
161
162	! !! namelist namsbc_cpl
163	TYPE :: FLD_C !
164	CHARACTER(len = 32) :: cldes ! desciption of the coupling strategy
165	CHARACTER(len = 32) :: clcat ! multiple ice categories strategy
166	CHARACTER(len = 32) :: clvref ! reference of vector ('spherical' or 'cartesian')
167	CHARACTER(len = 32) :: clvor ! orientation of vector fields ('eastward-northward' or 'local grid')
168	CHARACTER(len = 32) :: clvgrd ! grids on which is located the vector fields
169	END TYPE FLD_C
170	! ! Send to the atmosphere
171	TYPE(FLD_C) :: sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2, &
172	& sn_snd_thick1, sn_snd_cond, sn_snd_mpnd , sn_snd_sstfrz, sn_snd_ttilyr
173	! ! Received from the atmosphere
174	TYPE(FLD_C) :: sn_rcv_w10m, sn_rcv_taumod, sn_rcv_tau, sn_rcv_tauw, sn_rcv_dqnsdt, sn_rcv_qsr, &
175	& sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf, sn_rcv_ts_ice
176	TYPE(FLD_C) :: sn_rcv_cal, sn_rcv_iceflx, sn_rcv_co2, sn_rcv_mslp, sn_rcv_icb, sn_rcv_isf
177	! Send to waves
178	TYPE(FLD_C) :: sn_snd_ifrac, sn_snd_crtw, sn_snd_wlev
179	! Received from waves
180	TYPE(FLD_C) :: sn_rcv_hsig, sn_rcv_phioc, sn_rcv_sdrfx, sn_rcv_sdrfy, sn_rcv_wper, sn_rcv_wnum, sn_rcv_tauwoc, &
181	sn_rcv_wdrag, sn_rcv_wfreq
182	! ! Other namelist parameters
183	INTEGER :: nn_cplmodel ! Maximum number of models to/from which NEMO is potentialy sending/receiving data
184	LOGICAL :: ln_usecplmask ! use a coupling mask file to merge data received from several models
185	! -> file cplmask.nc with the float variable called cplmask (jpi,jpj,nn_cplmodel)
186	TYPE :: DYNARR
187	REAL(wp), POINTER, DIMENSION(:,:,:) :: z3
188	END TYPE DYNARR
189
190	TYPE( DYNARR ), SAVE, DIMENSION(jprcv) :: frcv ! all fields recieved from the atmosphere
191
192	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: alb_oce_mix ! ocean albedo sent to atmosphere (mix clear/overcast sky)
193
194	REAL(wp) :: rpref = 101000._wp ! reference atmospheric pressure[N/m2]
195	REAL(wp) :: r1_grau ! = 1.e0 / (grav * rau0)
196
197	INTEGER , ALLOCATABLE, SAVE, DIMENSION(:) :: nrcvinfo ! OASIS info argument
198
199	!! Substitution
200	# include "vectopt_loop_substitute.h90"
201	!!----------------------------------------------------------------------
202	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
203	!! $Id$
204	!! Software governed by the CeCILL license (see ./LICENSE)
205	!!----------------------------------------------------------------------
206	CONTAINS
207
208	INTEGER FUNCTION sbc_cpl_alloc()
209	!!----------------------------------------------------------------------
210	!! * FUNCTION sbc_cpl_alloc *
211	!!----------------------------------------------------------------------
212	INTEGER :: ierr(4)
213	!!----------------------------------------------------------------------
214	ierr(:) = 0
215	!
216	ALLOCATE( alb_oce_mix(jpi,jpj), nrcvinfo(jprcv), STAT=ierr(1) )
217
218	#if ! defined key_si3 && ! defined key_cice
219	ALLOCATE( a_i(jpi,jpj,1) , STAT=ierr(2) ) ! used in sbcice_if.F90 (done here as there is no sbc_ice_if_init)
220	#endif
221	ALLOCATE( xcplmask(jpi,jpj,0:nn_cplmodel) , STAT=ierr(3) )
222	!
223	IF( .NOT. ln_apr_dyn ) ALLOCATE( ssh_ib(jpi,jpj), ssh_ibb(jpi,jpj), apr(jpi, jpj), STAT=ierr(4) )
224
225	sbc_cpl_alloc = MAXVAL( ierr )
226	CALL mpp_sum ( 'sbccpl', sbc_cpl_alloc )
227	IF( sbc_cpl_alloc > 0 ) CALL ctl_warn('sbc_cpl_alloc: allocation of arrays failed')
228	!
229	END FUNCTION sbc_cpl_alloc
230
231
232	SUBROUTINE sbc_cpl_init( k_ice )
233	!!----------------------------------------------------------------------
234	!! * ROUTINE sbc_cpl_init *
235	!!
236	!! ** Purpose : Initialisation of send and received information from
237	!! the atmospheric component
238	!!
239	!! ** Method : * Read namsbc_cpl namelist
240	!! * define the receive interface
241	!! * define the send interface
242	!! * initialise the OASIS coupler
243	!!----------------------------------------------------------------------
244	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
245	!
246	INTEGER :: jn ! dummy loop index
247	INTEGER :: ios, inum ! Local integer
248	REAL(wp), DIMENSION(jpi,jpj) :: zacs, zaos
249	!!
250	NAMELIST/namsbc_cpl/ sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2 , &
251	& sn_snd_ttilyr, sn_snd_cond , sn_snd_mpnd , sn_snd_sstfrz, sn_snd_thick1, &
252	& sn_snd_ifrac , sn_snd_crtw , sn_snd_wlev , sn_rcv_hsig , sn_rcv_phioc, &
253	& sn_rcv_w10m , sn_rcv_taumod, sn_rcv_tau , sn_rcv_dqnsdt, sn_rcv_qsr , &
254	& sn_rcv_sdrfx , sn_rcv_sdrfy , sn_rcv_wper , sn_rcv_wnum , sn_rcv_tauwoc, &
255	& sn_rcv_wdrag , sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf , sn_rcv_cal , &
256	& sn_rcv_iceflx, sn_rcv_co2 , nn_cplmodel , ln_usecplmask, sn_rcv_mslp , &
257	& sn_rcv_icb , sn_rcv_isf , sn_rcv_wfreq , sn_rcv_tauw, nn_cats_cpl , &
258	& sn_rcv_ts_ice
259
260	!!---------------------------------------------------------------------
261	!
262	! ================================ !
263	! Namelist informations !
264	! ================================ !
265	!
266	REWIND( numnam_ref ) ! Namelist namsbc_cpl in reference namelist : Variables for OASIS coupling
267	READ ( numnam_ref, namsbc_cpl, IOSTAT = ios, ERR = 901)
268	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in reference namelist' )
269	!
270	REWIND( numnam_cfg ) ! Namelist namsbc_cpl in configuration namelist : Variables for OASIS coupling
271	READ ( numnam_cfg, namsbc_cpl, IOSTAT = ios, ERR = 902 )
272	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in configuration namelist' )
273	IF(lwm) WRITE ( numond, namsbc_cpl )
274	!
275	IF(lwp) THEN ! control print
276	WRITE(numout,*)
277	WRITE(numout,*)'sbc_cpl_init : namsbc_cpl namelist '
278	WRITE(numout,*)'~~~~~~~~~~~~'
279	ENDIF
280	IF( lwp .AND. ln_cpl ) THEN ! control print
281	WRITE(numout,*)' received fields (mutiple ice categogies)'
282	WRITE(numout,*)' 10m wind module = ', TRIM(sn_rcv_w10m%cldes ), ' (', TRIM(sn_rcv_w10m%clcat ), ')'
283	WRITE(numout,*)' stress module = ', TRIM(sn_rcv_taumod%cldes), ' (', TRIM(sn_rcv_taumod%clcat), ')'
284	WRITE(numout,*)' surface stress = ', TRIM(sn_rcv_tau%cldes ), ' (', TRIM(sn_rcv_tau%clcat ), ')'
285	WRITE(numout,*)' - referential = ', sn_rcv_tau%clvref
286	WRITE(numout,*)' - orientation = ', sn_rcv_tau%clvor
287	WRITE(numout,*)' - mesh = ', sn_rcv_tau%clvgrd
288	WRITE(numout,*)' non-solar heat flux sensitivity = ', TRIM(sn_rcv_dqnsdt%cldes), ' (', TRIM(sn_rcv_dqnsdt%clcat), ')'
289	WRITE(numout,*)' solar heat flux = ', TRIM(sn_rcv_qsr%cldes ), ' (', TRIM(sn_rcv_qsr%clcat ), ')'
290	WRITE(numout,*)' non-solar heat flux = ', TRIM(sn_rcv_qns%cldes ), ' (', TRIM(sn_rcv_qns%clcat ), ')'
291	WRITE(numout,*)' freshwater budget = ', TRIM(sn_rcv_emp%cldes ), ' (', TRIM(sn_rcv_emp%clcat ), ')'
292	WRITE(numout,*)' runoffs = ', TRIM(sn_rcv_rnf%cldes ), ' (', TRIM(sn_rcv_rnf%clcat ), ')'
293	WRITE(numout,*)' calving = ', TRIM(sn_rcv_cal%cldes ), ' (', TRIM(sn_rcv_cal%clcat ), ')'
294	WRITE(numout,*)' iceberg = ', TRIM(sn_rcv_icb%cldes ), ' (', TRIM(sn_rcv_icb%clcat ), ')'
295	WRITE(numout,*)' ice shelf = ', TRIM(sn_rcv_isf%cldes ), ' (', TRIM(sn_rcv_isf%clcat ), ')'
296	WRITE(numout,*)' sea ice heat fluxes = ', TRIM(sn_rcv_iceflx%cldes), ' (', TRIM(sn_rcv_iceflx%clcat), ')'
297	WRITE(numout,*)' atm co2 = ', TRIM(sn_rcv_co2%cldes ), ' (', TRIM(sn_rcv_co2%clcat ), ')'
298	WRITE(numout,*)' significant wave heigth = ', TRIM(sn_rcv_hsig%cldes ), ' (', TRIM(sn_rcv_hsig%clcat ), ')'
299	WRITE(numout,*)' wave to oce energy flux = ', TRIM(sn_rcv_phioc%cldes ), ' (', TRIM(sn_rcv_phioc%clcat ), ')'
300	WRITE(numout,*)' Surface Stokes drift grid u = ', TRIM(sn_rcv_sdrfx%cldes ), ' (', TRIM(sn_rcv_sdrfx%clcat ), ')'
301	WRITE(numout,*)' Surface Stokes drift grid v = ', TRIM(sn_rcv_sdrfy%cldes ), ' (', TRIM(sn_rcv_sdrfy%clcat ), ')'
302	WRITE(numout,*)' Mean wave period = ', TRIM(sn_rcv_wper%cldes ), ' (', TRIM(sn_rcv_wper%clcat ), ')'
303	WRITE(numout,*)' Mean wave number = ', TRIM(sn_rcv_wnum%cldes ), ' (', TRIM(sn_rcv_wnum%clcat ), ')'
304	WRITE(numout,*)' Wave peak frequency = ', TRIM(sn_rcv_wfreq%cldes ), ' (', TRIM(sn_rcv_wfreq%clcat ), ')'
305	WRITE(numout,*)' Stress frac adsorbed by waves = ', TRIM(sn_rcv_tauwoc%cldes), ' (', TRIM(sn_rcv_tauwoc%clcat ), ')'
306	WRITE(numout,*)' Stress components by waves = ', TRIM(sn_rcv_tauw%cldes ), ' (', TRIM(sn_rcv_tauw%clcat ), ')'
307	WRITE(numout,*)' Neutral surf drag coefficient = ', TRIM(sn_rcv_wdrag%cldes ), ' (', TRIM(sn_rcv_wdrag%clcat ), ')'
308	WRITE(numout,*)' Sea ice surface skin temperature= ', TRIM(sn_rcv_ts_ice%cldes), ' (', TRIM(sn_rcv_ts_ice%clcat), ')'
309	WRITE(numout,*)' sent fields (multiple ice categories)'
310	WRITE(numout,*)' surface temperature = ', TRIM(sn_snd_temp%cldes ), ' (', TRIM(sn_snd_temp%clcat ), ')'
311	WRITE(numout,*)' top ice layer temperature = ', TRIM(sn_snd_ttilyr%cldes), ' (', TRIM(sn_snd_ttilyr%clcat), ')'
312	WRITE(numout,*)' albedo = ', TRIM(sn_snd_alb%cldes ), ' (', TRIM(sn_snd_alb%clcat ), ')'
313	WRITE(numout,*)' ice/snow thickness = ', TRIM(sn_snd_thick%cldes ), ' (', TRIM(sn_snd_thick%clcat ), ')'
314	WRITE(numout,*)' total ice fraction = ', TRIM(sn_snd_ifrac%cldes ), ' (', TRIM(sn_snd_ifrac%clcat ), ')'
315	WRITE(numout,*)' surface current = ', TRIM(sn_snd_crt%cldes ), ' (', TRIM(sn_snd_crt%clcat ), ')'
316	WRITE(numout,*)' - referential = ', sn_snd_crt%clvref
317	WRITE(numout,*)' - orientation = ', sn_snd_crt%clvor
318	WRITE(numout,*)' - mesh = ', sn_snd_crt%clvgrd
319	WRITE(numout,*)' oce co2 flux = ', TRIM(sn_snd_co2%cldes ), ' (', TRIM(sn_snd_co2%clcat ), ')'
320	WRITE(numout,*)' ice effective conductivity = ', TRIM(sn_snd_cond%cldes ), ' (', TRIM(sn_snd_cond%clcat ), ')'
321	WRITE(numout,*)' meltponds fraction and depth = ', TRIM(sn_snd_mpnd%cldes ), ' (', TRIM(sn_snd_mpnd%clcat ), ')'
322	WRITE(numout,*)' sea surface freezing temp = ', TRIM(sn_snd_sstfrz%cldes), ' (', TRIM(sn_snd_sstfrz%clcat), ')'
323	WRITE(numout,*)' water level = ', TRIM(sn_snd_wlev%cldes ), ' (', TRIM(sn_snd_wlev%clcat ), ')'
324	WRITE(numout,*)' mean sea level pressure = ', TRIM(sn_rcv_mslp%cldes ), ' (', TRIM(sn_rcv_mslp%clcat ), ')'
325	WRITE(numout,*)' surface current to waves = ', TRIM(sn_snd_crtw%cldes ), ' (', TRIM(sn_snd_crtw%clcat ), ')'
326	WRITE(numout,*)' - referential = ', sn_snd_crtw%clvref
327	WRITE(numout,*)' - orientation = ', sn_snd_crtw%clvor
328	WRITE(numout,*)' - mesh = ', sn_snd_crtw%clvgrd
329	WRITE(numout,*)' nn_cplmodel = ', nn_cplmodel
330	WRITE(numout,*)' ln_usecplmask = ', ln_usecplmask
331	WRITE(numout,*)' nn_cats_cpl = ', nn_cats_cpl
332	ENDIF
333
334	! ! allocate sbccpl arrays
335	IF( sbc_cpl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_cpl_alloc : unable to allocate arrays' )
336
337	! ================================ !
338	! Define the receive interface !
339	! ================================ !
340	nrcvinfo(:) = OASIS_idle ! needed by nrcvinfo(jpr_otx1) if we do not receive ocean stress
341
342	! for each field: define the OASIS name (srcv(:)%clname)
343	! define receive or not from the namelist parameters (srcv(:)%laction)
344	! define the north fold type of lbc (srcv(:)%nsgn)
345
346	! default definitions of srcv
347	srcv(:)%laction = .FALSE. ; srcv(:)%clgrid = 'T' ; srcv(:)%nsgn = 1. ; srcv(:)%nct = 1
348
349	! ! ------------------------- !
350	! ! ice and ocean wind stress !
351	! ! ------------------------- !
352	! ! Name
353	srcv(jpr_otx1)%clname = 'O_OTaux1' ! 1st ocean component on grid ONE (T or U)
354	srcv(jpr_oty1)%clname = 'O_OTauy1' ! 2nd - - - -
355	srcv(jpr_otz1)%clname = 'O_OTauz1' ! 3rd - - - -
356	srcv(jpr_otx2)%clname = 'O_OTaux2' ! 1st ocean component on grid TWO (V)
357	srcv(jpr_oty2)%clname = 'O_OTauy2' ! 2nd - - - -
358	srcv(jpr_otz2)%clname = 'O_OTauz2' ! 3rd - - - -
359	!
360	srcv(jpr_itx1)%clname = 'O_ITaux1' ! 1st ice component on grid ONE (T, F, I or U)
361	srcv(jpr_ity1)%clname = 'O_ITauy1' ! 2nd - - - -
362	srcv(jpr_itz1)%clname = 'O_ITauz1' ! 3rd - - - -
363	srcv(jpr_itx2)%clname = 'O_ITaux2' ! 1st ice component on grid TWO (V)
364	srcv(jpr_ity2)%clname = 'O_ITauy2' ! 2nd - - - -
365	srcv(jpr_itz2)%clname = 'O_ITauz2' ! 3rd - - - -
366	!
367	! Vectors: change of sign at north fold ONLY if on the local grid
368	IF( TRIM( sn_rcv_tau%cldes ) == 'oce only' .OR. TRIM(sn_rcv_tau%cldes ) == 'oce and ice') THEN ! avoid working with the atmospheric fields if they are not coupled
369	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) srcv(jpr_otx1:jpr_itz2)%nsgn = -1.
370
371	! ! Set grid and action
372	SELECT CASE( TRIM( sn_rcv_tau%clvgrd ) ) ! 'T', 'U,V', 'U,V,I', 'U,V,F', 'T,I', 'T,F', or 'T,U,V'
373	CASE( 'T' )
374	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
375	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
376	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
377	CASE( 'U,V' )
378	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
379	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
380	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
381	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
382	srcv(jpr_otx1:jpr_itz2)%laction = .TRUE. ! receive oce and ice components on both grid 1 & 2
383	CASE( 'U,V,T' )
384	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
385	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
386	srcv(jpr_itx1:jpr_itz1)%clgrid = 'T' ! ice components given at T-point
387	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
388	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
389	CASE( 'U,V,I' )
390	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
391	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
392	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
393	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
394	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
395	CASE( 'U,V,F' )
396	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
397	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
398	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
399	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
400	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
401	CASE( 'T,I' )
402	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
403	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
404	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
405	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
406	CASE( 'T,F' )
407	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
408	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
409	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
410	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
411	CASE( 'T,U,V' )
412	srcv(jpr_otx1:jpr_otz1)%clgrid = 'T' ! oce components given at T-point
413	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
414	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
415	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1 only
416	srcv(jpr_itx1:jpr_itz2)%laction = .TRUE. ! receive ice components on grid 1 & 2
417	CASE default
418	CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_tau%clvgrd' )
419	END SELECT
420	!
421	IF( TRIM( sn_rcv_tau%clvref ) == 'spherical' ) & ! spherical: 3rd component not received
422	& srcv( (/jpr_otz1, jpr_otz2, jpr_itz1, jpr_itz2/) )%laction = .FALSE.
423	!
424	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) THEN ! already on local grid -> no need of the second grid
425	srcv(jpr_otx2:jpr_otz2)%laction = .FALSE.
426	srcv(jpr_itx2:jpr_itz2)%laction = .FALSE.
427	srcv(jpr_oty1)%clgrid = srcv(jpr_oty2)%clgrid ! not needed but cleaner...
428	srcv(jpr_ity1)%clgrid = srcv(jpr_ity2)%clgrid ! not needed but cleaner...
429	ENDIF
430	!
431	IF( TRIM( sn_rcv_tau%cldes ) /= 'oce and ice' ) THEN ! 'oce and ice' case ocean stress on ocean mesh used
432	srcv(jpr_itx1:jpr_itz2)%laction = .FALSE. ! ice components not received
433	srcv(jpr_itx1)%clgrid = 'U' ! ocean stress used after its transformation
434	srcv(jpr_ity1)%clgrid = 'V' ! i.e. it is always at U- & V-points for i- & j-comp. resp.
435	ENDIF
436	ENDIF
437
438	! ! ------------------------- !
439	! ! freshwater budget ! E-P
440	! ! ------------------------- !
441	! we suppose that atmosphere modele do not make the difference between precipiration (liquide or solid)
442	! over ice of free ocean within the same atmospheric cell.cd
443	srcv(jpr_rain)%clname = 'OTotRain' ! Rain = liquid precipitation
444	srcv(jpr_snow)%clname = 'OTotSnow' ! Snow = solid precipitation
445	srcv(jpr_tevp)%clname = 'OTotEvap' ! total evaporation (over oce + ice sublimation)
446	srcv(jpr_ievp)%clname = 'OIceEvap' ! evaporation over ice = sublimation
447	srcv(jpr_sbpr)%clname = 'OSubMPre' ! sublimation - liquid precipitation - solid precipitation
448	srcv(jpr_semp)%clname = 'OISubMSn' ! ice solid water budget = sublimation - solid precipitation
449	srcv(jpr_oemp)%clname = 'OOEvaMPr' ! ocean water budget = ocean Evap - ocean precip
450	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
451	CASE( 'none' ) ! nothing to do
452	CASE( 'oce only' ) ; srcv(jpr_oemp)%laction = .TRUE.
453	CASE( 'conservative' )
454	srcv( (/jpr_rain, jpr_snow, jpr_ievp, jpr_tevp/) )%laction = .TRUE.
455	IF ( k_ice <= 1 ) srcv(jpr_ievp)%laction = .FALSE.
456	CASE( 'oce and ice' ) ; srcv( (/jpr_ievp, jpr_sbpr, jpr_semp, jpr_oemp/) )%laction = .TRUE.
457	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_emp%cldes' )
458	END SELECT
459	!
460	! ! ------------------------- !
461	! ! Runoffs & Calving !
462	! ! ------------------------- !
463	srcv(jpr_rnf )%clname = 'O_Runoff'
464	IF( TRIM( sn_rcv_rnf%cldes ) == 'coupled' ) THEN
465	srcv(jpr_rnf)%laction = .TRUE.
466	l_rnfcpl = .TRUE. ! -> no need to read runoffs in sbcrnf
467	ln_rnf = nn_components /= jp_iam_sas ! -> force to go through sbcrnf if not sas
468	IF(lwp) WRITE(numout,*)
469	IF(lwp) WRITE(numout,*) ' runoffs received from oasis -> force ln_rnf = ', ln_rnf
470	ENDIF
471	!
472	srcv(jpr_cal)%clname = 'OCalving' ; IF( TRIM( sn_rcv_cal%cldes) == 'coupled' ) srcv(jpr_cal)%laction = .TRUE.
473	srcv(jpr_isf)%clname = 'OIcshelf' ; IF( TRIM( sn_rcv_isf%cldes) == 'coupled' ) srcv(jpr_isf)%laction = .TRUE.
474	srcv(jpr_icb)%clname = 'OIceberg' ; IF( TRIM( sn_rcv_icb%cldes) == 'coupled' ) srcv(jpr_icb)%laction = .TRUE.
475
476	IF( srcv(jpr_isf)%laction .AND. ln_isf ) THEN
477	l_isfcpl = .TRUE. ! -> no need to read isf in sbcisf
478	IF(lwp) WRITE(numout,*)
479	IF(lwp) WRITE(numout,*) ' iceshelf received from oasis '
480	ENDIF
481	!
482	! ! ------------------------- !
483	! ! non solar radiation ! Qns
484	! ! ------------------------- !
485	srcv(jpr_qnsoce)%clname = 'O_QnsOce'
486	srcv(jpr_qnsice)%clname = 'O_QnsIce'
487	srcv(jpr_qnsmix)%clname = 'O_QnsMix'
488	SELECT CASE( TRIM( sn_rcv_qns%cldes ) )
489	CASE( 'none' ) ! nothing to do
490	CASE( 'oce only' ) ; srcv( jpr_qnsoce )%laction = .TRUE.
491	CASE( 'conservative' ) ; srcv( (/jpr_qnsice, jpr_qnsmix/) )%laction = .TRUE.
492	CASE( 'oce and ice' ) ; srcv( (/jpr_qnsice, jpr_qnsoce/) )%laction = .TRUE.
493	CASE( 'mixed oce-ice' ) ; srcv( jpr_qnsmix )%laction = .TRUE.
494	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qns%cldes' )
495	END SELECT
496	IF( TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
497	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qns%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
498	!
499	! ! ------------------------- !
500	! ! solar radiation ! Qsr
501	! ! ------------------------- !
502	srcv(jpr_qsroce)%clname = 'O_QsrOce'
503	srcv(jpr_qsrice)%clname = 'O_QsrIce'
504	srcv(jpr_qsrmix)%clname = 'O_QsrMix'
505	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) )
506	CASE( 'none' ) ! nothing to do
507	CASE( 'oce only' ) ; srcv( jpr_qsroce )%laction = .TRUE.
508	CASE( 'conservative' ) ; srcv( (/jpr_qsrice, jpr_qsrmix/) )%laction = .TRUE.
509	CASE( 'oce and ice' ) ; srcv( (/jpr_qsrice, jpr_qsroce/) )%laction = .TRUE.
510	CASE( 'mixed oce-ice' ) ; srcv( jpr_qsrmix )%laction = .TRUE.
511	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qsr%cldes' )
512	END SELECT
513	IF( TRIM( sn_rcv_qsr%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
514	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qsr%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
515	!
516	! ! ------------------------- !
517	! ! non solar sensitivity ! d(Qns)/d(T)
518	! ! ------------------------- !
519	srcv(jpr_dqnsdt)%clname = 'O_dQnsdT'
520	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'coupled' ) srcv(jpr_dqnsdt)%laction = .TRUE.
521	!
522	! non solar sensitivity mandatory for mixed oce-ice solar radiation coupling technique
523	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' ) &
524	& CALL ctl_stop( 'sbc_cpl_init: namsbc_cpl namelist mismatch between sn_rcv_qns%cldes and sn_rcv_dqnsdt%cldes' )
525	!
526	! ! ------------------------- !
527	! ! 10m wind module !
528	! ! ------------------------- !
529	srcv(jpr_w10m)%clname = 'O_Wind10' ; IF( TRIM(sn_rcv_w10m%cldes ) == 'coupled' ) srcv(jpr_w10m)%laction = .TRUE.
530	!
531	! ! ------------------------- !
532	! ! wind stress module !
533	! ! ------------------------- !
534	srcv(jpr_taum)%clname = 'O_TauMod' ; IF( TRIM(sn_rcv_taumod%cldes) == 'coupled' ) srcv(jpr_taum)%laction = .TRUE.
535	lhftau = srcv(jpr_taum)%laction
536	!
537	! ! ------------------------- !
538	! ! Atmospheric CO2 !
539	! ! ------------------------- !
540	srcv(jpr_co2 )%clname = 'O_AtmCO2'
541	IF( TRIM(sn_rcv_co2%cldes ) == 'coupled' ) THEN
542	srcv(jpr_co2 )%laction = .TRUE.
543	l_co2cpl = .TRUE.
544	IF(lwp) WRITE(numout,*)
545	IF(lwp) WRITE(numout,*) ' Atmospheric pco2 received from oasis '
546	IF(lwp) WRITE(numout,*)
547	ENDIF
548	!
549	! ! ------------------------- !
550	! ! Mean Sea Level Pressure !
551	! ! ------------------------- !
552	srcv(jpr_mslp)%clname = 'O_MSLP' ; IF( TRIM(sn_rcv_mslp%cldes ) == 'coupled' ) srcv(jpr_mslp)%laction = .TRUE.
553	!
554	! ! ------------------------- !
555	! ! ice topmelt and botmelt !
556	! ! ------------------------- !
557	srcv(jpr_topm )%clname = 'OTopMlt'
558	srcv(jpr_botm )%clname = 'OBotMlt'
559	IF( TRIM(sn_rcv_iceflx%cldes) == 'coupled' ) THEN
560	IF ( TRIM( sn_rcv_iceflx%clcat ) == 'yes' ) THEN
561	srcv(jpr_topm:jpr_botm)%nct = nn_cats_cpl
562	ELSE
563	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_iceflx%clcat should always be set to yes currently' )
564	ENDIF
565	srcv(jpr_topm:jpr_botm)%laction = .TRUE.
566	ENDIF
567	! ! ------------------------- !
568	! ! ice skin temperature !
569	! ! ------------------------- !
570	srcv(jpr_ts_ice)%clname = 'OTsfIce' ! needed by Met Office
571	IF ( TRIM( sn_rcv_ts_ice%cldes ) == 'ice' ) srcv(jpr_ts_ice)%laction = .TRUE.
572	IF ( TRIM( sn_rcv_ts_ice%clcat ) == 'yes' ) srcv(jpr_ts_ice)%nct = nn_cats_cpl
573	IF ( TRIM( sn_rcv_emp%clcat ) == 'yes' ) srcv(jpr_ievp)%nct = nn_cats_cpl
574
575	#if defined key_si3
576	IF( ln_cndflx .AND. .NOT.ln_cndemulate ) THEN
577	IF( .NOT.srcv(jpr_ts_ice)%laction ) &
578	& CALL ctl_stop( 'sbc_cpl_init: srcv(jpr_ts_ice)%laction should be set to true when ln_cndflx=T' )
579	ENDIF
580	#endif
581	! ! ------------------------- !
582	! ! Wave breaking !
583	! ! ------------------------- !
584	srcv(jpr_hsig)%clname = 'O_Hsigwa' ! significant wave height
585	IF( TRIM(sn_rcv_hsig%cldes ) == 'coupled' ) THEN
586	srcv(jpr_hsig)%laction = .TRUE.
587	cpl_hsig = .TRUE.
588	ENDIF
589	srcv(jpr_phioc)%clname = 'O_PhiOce' ! wave to ocean energy
590	IF( TRIM(sn_rcv_phioc%cldes ) == 'coupled' ) THEN
591	srcv(jpr_phioc)%laction = .TRUE.
592	cpl_phioc = .TRUE.
593	ENDIF
594	srcv(jpr_sdrftx)%clname = 'O_Sdrfx' ! Stokes drift in the u direction
595	IF( TRIM(sn_rcv_sdrfx%cldes ) == 'coupled' ) THEN
596	srcv(jpr_sdrftx)%laction = .TRUE.
597	cpl_sdrftx = .TRUE.
598	ENDIF
599	srcv(jpr_sdrfty)%clname = 'O_Sdrfy' ! Stokes drift in the v direction
600	IF( TRIM(sn_rcv_sdrfy%cldes ) == 'coupled' ) THEN
601	srcv(jpr_sdrfty)%laction = .TRUE.
602	cpl_sdrfty = .TRUE.
603	ENDIF
604	srcv(jpr_wper)%clname = 'O_WPer' ! mean wave period
605	IF( TRIM(sn_rcv_wper%cldes ) == 'coupled' ) THEN
606	srcv(jpr_wper)%laction = .TRUE.
607	cpl_wper = .TRUE.
608	ENDIF
609	srcv(jpr_wfreq)%clname = 'O_WFreq' ! wave peak frequency
610	IF( TRIM(sn_rcv_wfreq%cldes ) == 'coupled' ) THEN
611	srcv(jpr_wfreq)%laction = .TRUE.
612	cpl_wfreq = .TRUE.
613	ENDIF
614	srcv(jpr_wnum)%clname = 'O_WNum' ! mean wave number
615	IF( TRIM(sn_rcv_wnum%cldes ) == 'coupled' ) THEN
616	srcv(jpr_wnum)%laction = .TRUE.
617	cpl_wnum = .TRUE.
618	ENDIF
619	srcv(jpr_tauwoc)%clname = 'O_TauOce' ! stress fraction adsorbed by the wave
620	IF( TRIM(sn_rcv_tauwoc%cldes ) == 'coupled' ) THEN
621	srcv(jpr_tauwoc)%laction = .TRUE.
622	cpl_tauwoc = .TRUE.
623	ENDIF
624	srcv(jpr_tauwx)%clname = 'O_Tauwx' ! ocean stress from wave in the x direction
625	srcv(jpr_tauwy)%clname = 'O_Tauwy' ! ocean stress from wave in the y direction
626	IF( TRIM(sn_rcv_tauw%cldes ) == 'coupled' ) THEN
627	srcv(jpr_tauwx)%laction = .TRUE.
628	srcv(jpr_tauwy)%laction = .TRUE.
629	cpl_tauw = .TRUE.
630	ENDIF
631	srcv(jpr_wdrag)%clname = 'O_WDrag' ! neutral surface drag coefficient
632	IF( TRIM(sn_rcv_wdrag%cldes ) == 'coupled' ) THEN
633	srcv(jpr_wdrag)%laction = .TRUE.
634	cpl_wdrag = .TRUE.
635	ENDIF
636	IF( srcv(jpr_tauwoc)%laction .AND. srcv(jpr_tauwx)%laction .AND. srcv(jpr_tauwy)%laction ) &
637	CALL ctl_stop( 'More than one method for modifying the ocean stress has been selected ', &
638	'(sn_rcv_tauwoc=coupled and sn_rcv_tauw=coupled)' )
639	!
640	! ! ------------------------------- !
641	! ! OPA-SAS coupling - rcv by opa !
642	! ! ------------------------------- !
643	srcv(jpr_sflx)%clname = 'O_SFLX'
644	srcv(jpr_fice)%clname = 'RIceFrc'
645	!
646	IF( nn_components == jp_iam_opa ) THEN ! OPA coupled to SAS via OASIS: force received field by OPA (sent by SAS)
647	srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
648	srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
649	srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
650	srcv( (/jpr_qsroce, jpr_qnsoce, jpr_oemp, jpr_sflx, jpr_fice, jpr_otx1, jpr_oty1, jpr_taum/) )%laction = .TRUE.
651	srcv(jpr_otx1)%clgrid = 'U' ! oce components given at U-point
652	srcv(jpr_oty1)%clgrid = 'V' ! and V-point
653	! Vectors: change of sign at north fold ONLY if on the local grid
654	srcv( (/jpr_otx1,jpr_oty1/) )%nsgn = -1.
655	sn_rcv_tau%clvgrd = 'U,V'
656	sn_rcv_tau%clvor = 'local grid'
657	sn_rcv_tau%clvref = 'spherical'
658	sn_rcv_emp%cldes = 'oce only'
659	!
660	IF(lwp) THEN ! control print
661	WRITE(numout,*)
662	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
663	WRITE(numout,*)' OPA component '
664	WRITE(numout,*)
665	WRITE(numout,*)' received fields from SAS component '
666	WRITE(numout,*)' ice cover '
667	WRITE(numout,*)' oce only EMP '
668	WRITE(numout,*)' salt flux '
669	WRITE(numout,*)' mixed oce-ice solar flux '
670	WRITE(numout,*)' mixed oce-ice non solar flux '
671	WRITE(numout,*)' wind stress U,V on local grid and sperical coordinates '
672	WRITE(numout,*)' wind stress module'
673	WRITE(numout,*)
674	ENDIF
675	ENDIF
676	! ! -------------------------------- !
677	! ! OPA-SAS coupling - rcv by sas !
678	! ! -------------------------------- !
679	srcv(jpr_toce )%clname = 'I_SSTSST'
680	srcv(jpr_soce )%clname = 'I_SSSal'
681	srcv(jpr_ocx1 )%clname = 'I_OCurx1'
682	srcv(jpr_ocy1 )%clname = 'I_OCury1'
683	srcv(jpr_ssh )%clname = 'I_SSHght'
684	srcv(jpr_e3t1st)%clname = 'I_E3T1st'
685	srcv(jpr_fraqsr)%clname = 'I_FraQsr'
686	!
687	IF( nn_components == jp_iam_sas ) THEN
688	IF( .NOT. ln_cpl ) srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
689	IF( .NOT. ln_cpl ) srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
690	IF( .NOT. ln_cpl ) srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
691	srcv( (/jpr_toce, jpr_soce, jpr_ssh, jpr_fraqsr, jpr_ocx1, jpr_ocy1/) )%laction = .TRUE.
692	srcv( jpr_e3t1st )%laction = .NOT.ln_linssh
693	srcv(jpr_ocx1)%clgrid = 'U' ! oce components given at U-point
694	srcv(jpr_ocy1)%clgrid = 'V' ! and V-point
695	! Vectors: change of sign at north fold ONLY if on the local grid
696	srcv(jpr_ocx1:jpr_ocy1)%nsgn = -1.
697	! Change first letter to couple with atmosphere if already coupled OPA
698	! this is nedeed as each variable name used in the namcouple must be unique:
699	! for example O_Runoff received by OPA from SAS and therefore O_Runoff received by SAS from the Atmosphere
700	DO jn = 1, jprcv
701	IF ( srcv(jn)%clname(1:1) == "O" ) srcv(jn)%clname = "S"//srcv(jn)%clname(2:LEN(srcv(jn)%clname))
702	END DO
703	!
704	IF(lwp) THEN ! control print
705	WRITE(numout,*)
706	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
707	WRITE(numout,*)' SAS component '
708	WRITE(numout,*)
709	IF( .NOT. ln_cpl ) THEN
710	WRITE(numout,*)' received fields from OPA component '
711	ELSE
712	WRITE(numout,*)' Additional received fields from OPA component : '
713	ENDIF
714	WRITE(numout,*)' sea surface temperature (Celsius) '
715	WRITE(numout,*)' sea surface salinity '
716	WRITE(numout,*)' surface currents '
717	WRITE(numout,*)' sea surface height '
718	WRITE(numout,*)' thickness of first ocean T level '
719	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
720	WRITE(numout,*)
721	ENDIF
722	ENDIF
723
724	! =================================================== !
725	! Allocate all parts of frcv used for received fields !
726	! =================================================== !
727	DO jn = 1, jprcv
728	IF ( srcv(jn)%laction ) ALLOCATE( frcv(jn)%z3(jpi,jpj,srcv(jn)%nct) )
729	END DO
730	! Allocate taum part of frcv which is used even when not received as coupling field
731	IF ( .NOT. srcv(jpr_taum)%laction ) ALLOCATE( frcv(jpr_taum)%z3(jpi,jpj,srcv(jpr_taum)%nct) )
732	! Allocate w10m part of frcv which is used even when not received as coupling field
733	IF ( .NOT. srcv(jpr_w10m)%laction ) ALLOCATE( frcv(jpr_w10m)%z3(jpi,jpj,srcv(jpr_w10m)%nct) )
734	! Allocate jpr_otx1 part of frcv which is used even when not received as coupling field
735	IF ( .NOT. srcv(jpr_otx1)%laction ) ALLOCATE( frcv(jpr_otx1)%z3(jpi,jpj,srcv(jpr_otx1)%nct) )
736	IF ( .NOT. srcv(jpr_oty1)%laction ) ALLOCATE( frcv(jpr_oty1)%z3(jpi,jpj,srcv(jpr_oty1)%nct) )
737	! Allocate itx1 and ity1 as they are used in sbc_cpl_ice_tau even if srcv(jpr_itx1)%laction = .FALSE.
738	IF( k_ice /= 0 ) THEN
739	IF ( .NOT. srcv(jpr_itx1)%laction ) ALLOCATE( frcv(jpr_itx1)%z3(jpi,jpj,srcv(jpr_itx1)%nct) )
740	IF ( .NOT. srcv(jpr_ity1)%laction ) ALLOCATE( frcv(jpr_ity1)%z3(jpi,jpj,srcv(jpr_ity1)%nct) )
741	END IF
742
743	! ================================ !
744	! Define the send interface !
745	! ================================ !
746	! for each field: define the OASIS name (ssnd(:)%clname)
747	! define send or not from the namelist parameters (ssnd(:)%laction)
748	! define the north fold type of lbc (ssnd(:)%nsgn)
749
750	! default definitions of nsnd
751	ssnd(:)%laction = .FALSE. ; ssnd(:)%clgrid = 'T' ; ssnd(:)%nsgn = 1. ; ssnd(:)%nct = 1
752
753	! ! ------------------------- !
754	! ! Surface temperature !
755	! ! ------------------------- !
756	ssnd(jps_toce)%clname = 'O_SSTSST'
757	ssnd(jps_tice)%clname = 'O_TepIce'
758	ssnd(jps_ttilyr)%clname = 'O_TtiLyr'
759	ssnd(jps_tmix)%clname = 'O_TepMix'
760	SELECT CASE( TRIM( sn_snd_temp%cldes ) )
761	CASE( 'none' ) ! nothing to do
762	CASE( 'oce only' ) ; ssnd( jps_toce )%laction = .TRUE.
763	CASE( 'oce and ice' , 'weighted oce and ice' , 'oce and weighted ice' )
764	ssnd( (/jps_toce, jps_tice/) )%laction = .TRUE.
765	IF ( TRIM( sn_snd_temp%clcat ) == 'yes' ) ssnd(jps_tice)%nct = nn_cats_cpl
766	CASE( 'mixed oce-ice' ) ; ssnd( jps_tmix )%laction = .TRUE.
767	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_temp%cldes' )
768	END SELECT
769
770	! ! ------------------------- !
771	! ! Albedo !
772	! ! ------------------------- !
773	ssnd(jps_albice)%clname = 'O_AlbIce'
774	ssnd(jps_albmix)%clname = 'O_AlbMix'
775	SELECT CASE( TRIM( sn_snd_alb%cldes ) )
776	CASE( 'none' ) ! nothing to do
777	CASE( 'ice' , 'weighted ice' ) ; ssnd(jps_albice)%laction = .TRUE.
778	CASE( 'mixed oce-ice' ) ; ssnd(jps_albmix)%laction = .TRUE.
779	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_alb%cldes' )
780	END SELECT
781	!
782	! Need to calculate oceanic albedo if
783	! 1. sending mixed oce-ice albedo or
784	! 2. receiving mixed oce-ice solar radiation
785	IF ( TRIM ( sn_snd_alb%cldes ) == 'mixed oce-ice' .OR. TRIM ( sn_rcv_qsr%cldes ) == 'mixed oce-ice' ) THEN
786	CALL oce_alb( zaos, zacs )
787	! Due to lack of information on nebulosity : mean clear/overcast sky
788	alb_oce_mix(:,:) = ( zacs(:,:) + zaos(:,:) ) * 0.5
789	ENDIF
790	! ! ------------------------- !
791	! ! Ice fraction & Thickness !
792	! ! ------------------------- !
793	ssnd(jps_fice)%clname = 'OIceFrc'
794	ssnd(jps_ficet)%clname = 'OIceFrcT'
795	ssnd(jps_hice)%clname = 'OIceTck'
796	ssnd(jps_a_p)%clname = 'OPndFrc'
797	ssnd(jps_ht_p)%clname = 'OPndTck'
798	ssnd(jps_hsnw)%clname = 'OSnwTck'
799	ssnd(jps_fice1)%clname = 'OIceFrd'
800	IF( k_ice /= 0 ) THEN
801	ssnd(jps_fice)%laction = .TRUE. ! if ice treated in the ocean (even in climato case)
802	ssnd(jps_fice1)%laction = .TRUE. ! First-order regridded ice concentration, to be used producing atmos-to-ice fluxes (Met Office requirement)
803	! Currently no namelist entry to determine sending of multi-category ice fraction so use the thickness entry for now
804	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_fice)%nct = nn_cats_cpl
805	IF ( TRIM( sn_snd_thick1%clcat ) == 'yes' ) ssnd(jps_fice1)%nct = nn_cats_cpl
806	ENDIF
807
808	IF (TRIM( sn_snd_ifrac%cldes ) == 'coupled') ssnd(jps_ficet)%laction = .TRUE.
809
810	SELECT CASE ( TRIM( sn_snd_thick%cldes ) )
811	CASE( 'none' ) ! nothing to do
812	CASE( 'ice and snow' )
813	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
814	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) THEN
815	ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
816	ENDIF
817	CASE ( 'weighted ice and snow' )
818	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
819	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
820	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_thick%cldes' )
821	END SELECT
822
823	! ! ------------------------- !
824	! ! Ice Meltponds !
825	! ! ------------------------- !
826	! Needed by Met Office
827	ssnd(jps_a_p)%clname = 'OPndFrc'
828	ssnd(jps_ht_p)%clname = 'OPndTck'
829	SELECT CASE ( TRIM( sn_snd_mpnd%cldes ) )
830	CASE ( 'none' )
831	ssnd(jps_a_p)%laction = .FALSE.
832	ssnd(jps_ht_p)%laction = .FALSE.
833	CASE ( 'ice only' )
834	ssnd(jps_a_p)%laction = .TRUE.
835	ssnd(jps_ht_p)%laction = .TRUE.
836	IF ( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
837	ssnd(jps_a_p)%nct = nn_cats_cpl
838	ssnd(jps_ht_p)%nct = nn_cats_cpl
839	ELSE
840	IF ( nn_cats_cpl > 1 ) THEN
841	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_mpnd%cldes if not exchanging category fields' )
842	ENDIF
843	ENDIF
844	CASE ( 'weighted ice' )
845	ssnd(jps_a_p)%laction = .TRUE.
846	ssnd(jps_ht_p)%laction = .TRUE.
847	IF ( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
848	ssnd(jps_a_p)%nct = nn_cats_cpl
849	ssnd(jps_ht_p)%nct = nn_cats_cpl
850	ENDIF
851	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_mpnd%cldes; '//sn_snd_mpnd%cldes )
852	END SELECT
853
854	! ! ------------------------- !
855	! ! Surface current !
856	! ! ------------------------- !
857	! ocean currents ! ice velocities
858	ssnd(jps_ocx1)%clname = 'O_OCurx1' ; ssnd(jps_ivx1)%clname = 'O_IVelx1'
859	ssnd(jps_ocy1)%clname = 'O_OCury1' ; ssnd(jps_ivy1)%clname = 'O_IVely1'
860	ssnd(jps_ocz1)%clname = 'O_OCurz1' ; ssnd(jps_ivz1)%clname = 'O_IVelz1'
861	ssnd(jps_ocxw)%clname = 'O_OCurxw'
862	ssnd(jps_ocyw)%clname = 'O_OCuryw'
863	!
864	ssnd(jps_ocx1:jps_ivz1)%nsgn = -1. ! vectors: change of the sign at the north fold
865
866	IF( sn_snd_crt%clvgrd == 'U,V' ) THEN
867	ssnd(jps_ocx1)%clgrid = 'U' ; ssnd(jps_ocy1)%clgrid = 'V'
868	ELSE IF( sn_snd_crt%clvgrd /= 'T' ) THEN
869	CALL ctl_stop( 'sn_snd_crt%clvgrd must be equal to T' )
870	ENDIF
871	ssnd(jps_ocx1:jps_ivz1)%laction = .TRUE. ! default: all are send
872	IF( TRIM( sn_snd_crt%clvref ) == 'spherical' ) ssnd( (/jps_ocz1, jps_ivz1/) )%laction = .FALSE.
873	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) ssnd(jps_ocx1:jps_ivz1)%nsgn = 1.
874	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
875	CASE( 'none' ) ; ssnd(jps_ocx1:jps_ivz1)%laction = .FALSE.
876	CASE( 'oce only' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
877	CASE( 'weighted oce and ice' ) ! nothing to do
878	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
879	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crt%cldes' )
880	END SELECT
881
882	ssnd(jps_ocxw:jps_ocyw)%nsgn = -1. ! vectors: change of the sign at the north fold
883
884	IF( sn_snd_crtw%clvgrd == 'U,V' ) THEN
885	ssnd(jps_ocxw)%clgrid = 'U' ; ssnd(jps_ocyw)%clgrid = 'V'
886	ELSE IF( sn_snd_crtw%clvgrd /= 'T' ) THEN
887	CALL ctl_stop( 'sn_snd_crtw%clvgrd must be equal to T' )
888	ENDIF
889	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) ssnd(jps_ocxw:jps_ocyw)%nsgn = 1.
890	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
891	CASE( 'none' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .FALSE.
892	CASE( 'oce only' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .TRUE.
893	CASE( 'weighted oce and ice' ) ! nothing to do
894	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
895	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crtw%cldes' )
896	END SELECT
897
898	! ! ------------------------- !
899	! ! CO2 flux !
900	! ! ------------------------- !
901	ssnd(jps_co2)%clname = 'O_CO2FLX' ; IF( TRIM(sn_snd_co2%cldes) == 'coupled' ) ssnd(jps_co2 )%laction = .TRUE.
902	!
903	! ! ------------------------- !
904	! ! Sea surface freezing temp !
905	! ! ------------------------- !
906	! needed by Met Office
907	ssnd(jps_sstfrz)%clname = 'O_SSTFrz' ; IF( TRIM(sn_snd_sstfrz%cldes) == 'coupled' ) ssnd(jps_sstfrz)%laction = .TRUE.
908	!
909	! ! ------------------------- !
910	! ! Ice conductivity !
911	! ! ------------------------- !
912	! needed by Met Office
913	! Note that ultimately we will move to passing an ocean effective conductivity as well so there
914	! will be some changes to the parts of the code which currently relate only to ice conductivity
915	ssnd(jps_ttilyr )%clname = 'O_TtiLyr'
916	SELECT CASE ( TRIM( sn_snd_ttilyr%cldes ) )
917	CASE ( 'none' )
918	ssnd(jps_ttilyr)%laction = .FALSE.
919	CASE ( 'ice only' )
920	ssnd(jps_ttilyr)%laction = .TRUE.
921	IF ( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) THEN
922	ssnd(jps_ttilyr)%nct = nn_cats_cpl
923	ELSE
924	IF ( nn_cats_cpl > 1 ) THEN
925	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_ttilyr%cldes if not exchanging category fields' )
926	ENDIF
927	ENDIF
928	CASE ( 'weighted ice' )
929	ssnd(jps_ttilyr)%laction = .TRUE.
930	IF ( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) ssnd(jps_ttilyr)%nct = nn_cats_cpl
931	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_ttilyr%cldes;'//sn_snd_ttilyr%cldes )
932	END SELECT
933
934	ssnd(jps_kice )%clname = 'OIceKn'
935	SELECT CASE ( TRIM( sn_snd_cond%cldes ) )
936	CASE ( 'none' )
937	ssnd(jps_kice)%laction = .FALSE.
938	CASE ( 'ice only' )
939	ssnd(jps_kice)%laction = .TRUE.
940	IF ( TRIM( sn_snd_cond%clcat ) == 'yes' ) THEN
941	ssnd(jps_kice)%nct = nn_cats_cpl
942	ELSE
943	IF ( nn_cats_cpl > 1 ) THEN
944	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_cond%cldes if not exchanging category fields' )
945	ENDIF
946	ENDIF
947	CASE ( 'weighted ice' )
948	ssnd(jps_kice)%laction = .TRUE.
949	IF ( TRIM( sn_snd_cond%clcat ) == 'yes' ) ssnd(jps_kice)%nct = nn_cats_cpl
950	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_cond%cldes;'//sn_snd_cond%cldes )
951	END SELECT
952	!
953	! ! ------------------------- !
954	! ! Sea surface height !
955	! ! ------------------------- !
956	ssnd(jps_wlev)%clname = 'O_Wlevel' ; IF( TRIM(sn_snd_wlev%cldes) == 'coupled' ) ssnd(jps_wlev)%laction = .TRUE.
957
958	! ! ------------------------------- !
959	! ! OPA-SAS coupling - snd by opa !
960	! ! ------------------------------- !
961	ssnd(jps_ssh )%clname = 'O_SSHght'
962	ssnd(jps_soce )%clname = 'O_SSSal'
963	ssnd(jps_e3t1st)%clname = 'O_E3T1st'
964	ssnd(jps_fraqsr)%clname = 'O_FraQsr'
965	!
966	IF( nn_components == jp_iam_opa ) THEN
967	ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
968	ssnd( (/jps_toce, jps_soce, jps_ssh, jps_fraqsr, jps_ocx1, jps_ocy1/) )%laction = .TRUE.
969	ssnd( jps_e3t1st )%laction = .NOT.ln_linssh
970	! vector definition: not used but cleaner...
971	ssnd(jps_ocx1)%clgrid = 'U' ! oce components given at U-point
972	ssnd(jps_ocy1)%clgrid = 'V' ! and V-point
973	sn_snd_crt%clvgrd = 'U,V'
974	sn_snd_crt%clvor = 'local grid'
975	sn_snd_crt%clvref = 'spherical'
976	!
977	IF(lwp) THEN ! control print
978	WRITE(numout,*)
979	WRITE(numout,*)' sent fields to SAS component '
980	WRITE(numout,*)' sea surface temperature (T before, Celsius) '
981	WRITE(numout,*)' sea surface salinity '
982	WRITE(numout,*)' surface currents U,V on local grid and spherical coordinates'
983	WRITE(numout,*)' sea surface height '
984	WRITE(numout,*)' thickness of first ocean T level '
985	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
986	WRITE(numout,*)
987	ENDIF
988	ENDIF
989	! ! ------------------------------- !
990	! ! OPA-SAS coupling - snd by sas !
991	! ! ------------------------------- !
992	ssnd(jps_sflx )%clname = 'I_SFLX'
993	ssnd(jps_fice2 )%clname = 'IIceFrc'
994	ssnd(jps_qsroce)%clname = 'I_QsrOce'
995	ssnd(jps_qnsoce)%clname = 'I_QnsOce'
996	ssnd(jps_oemp )%clname = 'IOEvaMPr'
997	ssnd(jps_otx1 )%clname = 'I_OTaux1'
998	ssnd(jps_oty1 )%clname = 'I_OTauy1'
999	ssnd(jps_rnf )%clname = 'I_Runoff'
1000	ssnd(jps_taum )%clname = 'I_TauMod'
1001	!
1002	IF( nn_components == jp_iam_sas ) THEN
1003	IF( .NOT. ln_cpl ) ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
1004	ssnd( (/jps_qsroce, jps_qnsoce, jps_oemp, jps_fice2, jps_sflx, jps_otx1, jps_oty1, jps_taum/) )%laction = .TRUE.
1005	!
1006	! Change first letter to couple with atmosphere if already coupled with sea_ice
1007	! this is nedeed as each variable name used in the namcouple must be unique:
1008	! for example O_SSTSST sent by OPA to SAS and therefore S_SSTSST sent by SAS to the Atmosphere
1009	DO jn = 1, jpsnd
1010	IF ( ssnd(jn)%clname(1:1) == "O" ) ssnd(jn)%clname = "S"//ssnd(jn)%clname(2:LEN(ssnd(jn)%clname))
1011	END DO
1012	!
1013	IF(lwp) THEN ! control print
1014	WRITE(numout,*)
1015	IF( .NOT. ln_cpl ) THEN
1016	WRITE(numout,*)' sent fields to OPA component '
1017	ELSE
1018	WRITE(numout,*)' Additional sent fields to OPA component : '
1019	ENDIF
1020	WRITE(numout,*)' ice cover '
1021	WRITE(numout,*)' oce only EMP '
1022	WRITE(numout,*)' salt flux '
1023	WRITE(numout,*)' mixed oce-ice solar flux '
1024	WRITE(numout,*)' mixed oce-ice non solar flux '
1025	WRITE(numout,*)' wind stress U,V components'
1026	WRITE(numout,*)' wind stress module'
1027	ENDIF
1028	ENDIF
1029
1030	!
1031	! ================================ !
1032	! initialisation of the coupler !
1033	! ================================ !
1034
1035	CALL cpl_define(jprcv, jpsnd, nn_cplmodel)
1036
1037	IF (ln_usecplmask) THEN
1038	xcplmask(:,:,:) = 0.
1039	CALL iom_open( 'cplmask', inum )
1040	CALL iom_get( inum, jpdom_unknown, 'cplmask', xcplmask(1:nlci,1:nlcj,1:nn_cplmodel), &
1041	& kstart = (/ mig(1),mjg(1),1 /), kcount = (/ nlci,nlcj,nn_cplmodel /) )
1042	CALL iom_close( inum )
1043	ELSE
1044	xcplmask(:,:,:) = 1.
1045	ENDIF
1046	xcplmask(:,:,0) = 1. - SUM( xcplmask(:,:,1:nn_cplmodel), dim = 3 )
1047	!
1048	END SUBROUTINE sbc_cpl_init
1049
1050
1051	SUBROUTINE sbc_cpl_rcv( kt, k_fsbc, k_ice )
1052	!!----------------------------------------------------------------------
1053	!! * ROUTINE sbc_cpl_rcv *
1054	!!
1055	!! ** Purpose : provide the stress over the ocean and, if no sea-ice,
1056	!! provide the ocean heat and freshwater fluxes.
1057	!!
1058	!! ** Method : - Receive all the atmospheric fields (stored in frcv array). called at each time step.
1059	!! OASIS controls if there is something do receive or not. nrcvinfo contains the info
1060	!! to know if the field was really received or not
1061	!!
1062	!! --> If ocean stress was really received:
1063	!!
1064	!! - transform the received ocean stress vector from the received
1065	!! referential and grid into an atmosphere-ocean stress in
1066	!! the (i,j) ocean referencial and at the ocean velocity point.
1067	!! The received stress are :
1068	!! - defined by 3 components (if cartesian coordinate)
1069	!! or by 2 components (if spherical)
1070	!! - oriented along geographical coordinate (if eastward-northward)
1071	!! or along the local grid coordinate (if local grid)
1072	!! - given at U- and V-point, resp. if received on 2 grids
1073	!! or at T-point if received on 1 grid
1074	!! Therefore and if necessary, they are successively
1075	!! processed in order to obtain them
1076	!! first as 2 components on the sphere
1077	!! second as 2 components oriented along the local grid
1078	!! third as 2 components on the U,V grid
1079	!!
1080	!! -->
1081	!!
1082	!! - In 'ocean only' case, non solar and solar ocean heat fluxes
1083	!! and total ocean freshwater fluxes
1084	!!
1085	!! ** Method : receive all fields from the atmosphere and transform
1086	!! them into ocean surface boundary condition fields
1087	!!
1088	!! ** Action : update utau, vtau ocean stress at U,V grid
1089	!! taum wind stress module at T-point
1090	!! wndm wind speed module at T-point over free ocean or leads in presence of sea-ice
1091	!! qns non solar heat fluxes including emp heat content (ocean only case)
1092	!! and the latent heat flux of solid precip. melting
1093	!! qsr solar ocean heat fluxes (ocean only case)
1094	!! emp upward mass flux [evap. - precip. (- runoffs) (- calving)] (ocean only case)
1095	!!----------------------------------------------------------------------
1096	USE zdf_oce, ONLY : ln_zdfswm
1097	!
1098	INTEGER, INTENT(in) :: kt ! ocean model time step index
1099	INTEGER, INTENT(in) :: k_fsbc ! frequency of sbc (-> ice model) computation
1100	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
1101	!!
1102	LOGICAL :: llnewtx, llnewtau ! update wind stress components and module??
1103	INTEGER :: ji, jj, jn ! dummy loop indices
1104	INTEGER :: isec ! number of seconds since nit000 (assuming rdt did not change since nit000)
1105	REAL(wp) :: zcumulneg, zcumulpos ! temporary scalars
1106	REAL(wp) :: zcoef ! temporary scalar
1107	REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3
1108	REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient
1109	REAL(wp) :: zzx, zzy ! temporary variables
1110	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty, zmsk, zemp, zqns, zqsr
1111	!!----------------------------------------------------------------------
1112	!
1113	IF( kt == nit000 ) THEN
1114	! cannot be done in the init phase when we use agrif as cpl_freq requires that oasis_enddef is done
1115	ncpl_qsr_freq = cpl_freq( 'O_QsrOce' ) + cpl_freq( 'O_QsrMix' ) + cpl_freq( 'I_QsrOce' ) + cpl_freq( 'I_QsrMix' )
1116	IF( ln_dm2dc .AND. ncpl_qsr_freq /= 86400 ) &
1117	& CALL ctl_stop( 'sbc_cpl_rcv: diurnal cycle reconstruction (ln_dm2dc) needs daily couping for solar radiation' )
1118	ncpl_qsr_freq = 86400 / ncpl_qsr_freq ! used by top
1119	ENDIF
1120	!
1121	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1122	!
1123	! ! ======================================================= !
1124	! ! Receive all the atmos. fields (including ice information)
1125	! ! ======================================================= !
1126	isec = ( kt - nit000 ) * NINT( rdt ) ! date of exchanges
1127	DO jn = 1, jprcv ! received fields sent by the atmosphere
1128	IF( srcv(jn)%laction ) CALL cpl_rcv( jn, isec, frcv(jn)%z3, xcplmask(:,:,1:nn_cplmodel), nrcvinfo(jn) )
1129	END DO
1130
1131	! ! ========================= !
1132	IF( srcv(jpr_otx1)%laction ) THEN ! ocean stress components !
1133	! ! ========================= !
1134	! define frcv(jpr_otx1)%z3(:,:,1) and frcv(jpr_oty1)%z3(:,:,1): stress at U/V point along model grid
1135	! => need to be done only when we receive the field
1136	IF( nrcvinfo(jpr_otx1) == OASIS_Rcv ) THEN
1137	!
1138	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1139	! ! (cartesian to spherical -> 3 to 2 components)
1140	!
1141	CALL geo2oce( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), frcv(jpr_otz1)%z3(:,:,1), &
1142	& srcv(jpr_otx1)%clgrid, ztx, zty )
1143	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1144	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1145	!
1146	IF( srcv(jpr_otx2)%laction ) THEN
1147	CALL geo2oce( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), frcv(jpr_otz2)%z3(:,:,1), &
1148	& srcv(jpr_otx2)%clgrid, ztx, zty )
1149	frcv(jpr_otx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1150	frcv(jpr_oty2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1151	ENDIF
1152	!
1153	ENDIF
1154	!
1155	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1156	! ! (geographical to local grid -> rotate the components)
1157	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->i', ztx )
1158	IF( srcv(jpr_otx2)%laction ) THEN
1159	CALL rot_rep( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), srcv(jpr_otx2)%clgrid, 'en->j', zty )
1160	ELSE
1161	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->j', zty )
1162	ENDIF
1163	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1164	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 2nd grid
1165	ENDIF
1166	!
1167	IF( srcv(jpr_otx1)%clgrid == 'T' ) THEN
1168	DO jj = 2, jpjm1 ! T ==> (U,V)
1169	DO ji = fs_2, fs_jpim1 ! vector opt.
1170	frcv(jpr_otx1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_otx1)%z3(ji+1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1) )
1171	frcv(jpr_oty1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_oty1)%z3(ji ,jj+1,1) + frcv(jpr_oty1)%z3(ji,jj,1) )
1172	END DO
1173	END DO
1174	CALL lbc_lnk_multi( 'sbccpl', frcv(jpr_otx1)%z3(:,:,1), 'U', -1., frcv(jpr_oty1)%z3(:,:,1), 'V', -1. )
1175	ENDIF
1176	llnewtx = .TRUE.
1177	ELSE
1178	llnewtx = .FALSE.
1179	ENDIF
1180	! ! ========================= !
1181	ELSE ! No dynamical coupling !
1182	! ! ========================= !
1183	frcv(jpr_otx1)%z3(:,:,1) = 0.e0 ! here simply set to zero
1184	frcv(jpr_oty1)%z3(:,:,1) = 0.e0 ! an external read in a file can be added instead
1185	llnewtx = .TRUE.
1186	!
1187	ENDIF
1188	! ! ========================= !
1189	! ! wind stress module ! (taum)
1190	! ! ========================= !
1191	IF( .NOT. srcv(jpr_taum)%laction ) THEN ! compute wind stress module from its components if not received
1192	! => need to be done only when otx1 was changed
1193	IF( llnewtx ) THEN
1194	DO jj = 2, jpjm1
1195	DO ji = fs_2, fs_jpim1 ! vect. opt.
1196	zzx = frcv(jpr_otx1)%z3(ji-1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1)
1197	zzy = frcv(jpr_oty1)%z3(ji ,jj-1,1) + frcv(jpr_oty1)%z3(ji,jj,1)
1198	frcv(jpr_taum)%z3(ji,jj,1) = 0.5 * SQRT( zzx * zzx + zzy * zzy )
1199	END DO
1200	END DO
1201	CALL lbc_lnk( 'sbccpl', frcv(jpr_taum)%z3(:,:,1), 'T', 1. )
1202	llnewtau = .TRUE.
1203	ELSE
1204	llnewtau = .FALSE.
1205	ENDIF
1206	ELSE
1207	llnewtau = nrcvinfo(jpr_taum) == OASIS_Rcv
1208	! Stress module can be negative when received (interpolation problem)
1209	IF( llnewtau ) THEN
1210	frcv(jpr_taum)%z3(:,:,1) = MAX( 0._wp, frcv(jpr_taum)%z3(:,:,1) )
1211	ENDIF
1212	ENDIF
1213	!
1214	! ! ========================= !
1215	! ! 10 m wind speed ! (wndm)
1216	! ! ========================= !
1217	IF( .NOT. srcv(jpr_w10m)%laction ) THEN ! compute wind spreed from wind stress module if not received
1218	! => need to be done only when taumod was changed
1219	IF( llnewtau ) THEN
1220	zcoef = 1. / ( zrhoa * zcdrag )
1221	DO jj = 1, jpj
1222	DO ji = 1, jpi
1223	frcv(jpr_w10m)%z3(ji,jj,1) = SQRT( frcv(jpr_taum)%z3(ji,jj,1) * zcoef )
1224	END DO
1225	END DO
1226	ENDIF
1227	ENDIF
1228
1229	! u(v)tau and taum will be modified by ice model
1230	! -> need to be reset before each call of the ice/fsbc
1231	IF( MOD( kt-1, k_fsbc ) == 0 ) THEN
1232	!
1233	IF( ln_mixcpl ) THEN
1234	utau(:,:) = utau(:,:) * xcplmask(:,:,0) + frcv(jpr_otx1)%z3(:,:,1) * zmsk(:,:)
1235	vtau(:,:) = vtau(:,:) * xcplmask(:,:,0) + frcv(jpr_oty1)%z3(:,:,1) * zmsk(:,:)
1236	taum(:,:) = taum(:,:) * xcplmask(:,:,0) + frcv(jpr_taum)%z3(:,:,1) * zmsk(:,:)
1237	wndm(:,:) = wndm(:,:) * xcplmask(:,:,0) + frcv(jpr_w10m)%z3(:,:,1) * zmsk(:,:)
1238	ELSE
1239	utau(:,:) = frcv(jpr_otx1)%z3(:,:,1)
1240	vtau(:,:) = frcv(jpr_oty1)%z3(:,:,1)
1241	taum(:,:) = frcv(jpr_taum)%z3(:,:,1)
1242	wndm(:,:) = frcv(jpr_w10m)%z3(:,:,1)
1243	ENDIF
1244	CALL iom_put( "taum_oce", taum ) ! output wind stress module
1245	!
1246	ENDIF
1247
1248	! ! ================== !
1249	! ! atmosph. CO2 (ppm) !
1250	! ! ================== !
1251	IF( srcv(jpr_co2)%laction ) atm_co2(:,:) = frcv(jpr_co2)%z3(:,:,1)
1252	!
1253	! ! ========================= !
1254	! ! Mean Sea Level Pressure ! (taum)
1255	! ! ========================= !
1256	IF( srcv(jpr_mslp)%laction ) THEN ! UKMO SHELF effect of atmospheric pressure on SSH
1257	IF( kt /= nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) !* Swap of ssh_ib fields
1258
1259	r1_grau = 1.e0 / (grav * rau0) !* constant for optimization
1260	ssh_ib(:,:) = - ( frcv(jpr_mslp)%z3(:,:,1) - rpref ) * r1_grau ! equivalent ssh (inverse barometer)
1261	apr (:,:) = frcv(jpr_mslp)%z3(:,:,1) !atmospheric pressure
1262
1263	IF( kt == nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) ! correct this later (read from restart if possible)
1264	END IF
1265	!
1266	IF( ln_sdw ) THEN ! Stokes Drift correction activated
1267	! ! ========================= !
1268	! ! Stokes drift u !
1269	! ! ========================= !
1270	IF( srcv(jpr_sdrftx)%laction ) ut0sd(:,:) = frcv(jpr_sdrftx)%z3(:,:,1)
1271	!
1272	! ! ========================= !
1273	! ! Stokes drift v !
1274	! ! ========================= !
1275	IF( srcv(jpr_sdrfty)%laction ) vt0sd(:,:) = frcv(jpr_sdrfty)%z3(:,:,1)
1276	!
1277	! ! ========================= !
1278	! ! Wave mean period !
1279	! ! ========================= !
1280	IF( srcv(jpr_wper)%laction ) wmp(:,:) = frcv(jpr_wper)%z3(:,:,1)
1281	!
1282	! ! ========================= !
1283	! ! Significant wave height !
1284	! ! ========================= !
1285	IF( srcv(jpr_hsig)%laction ) hsw(:,:) = frcv(jpr_hsig)%z3(:,:,1)
1286	!
1287	! ! ========================= !
1288	! ! Wave peak frequency !
1289	! ! ========================= !
1290	IF( srcv(jpr_wfreq)%laction ) wfreq(:,:) = frcv(jpr_wfreq)%z3(:,:,1)
1291	!
1292	! ! ========================= !
1293	! ! Vertical mixing Qiao !
1294	! ! ========================= !
1295	IF( srcv(jpr_wnum)%laction .AND. ln_zdfswm ) wnum(:,:) = frcv(jpr_wnum)%z3(:,:,1)
1296
1297	! Calculate the 3D Stokes drift both in coupled and not fully uncoupled mode
1298	IF( srcv(jpr_sdrftx)%laction .OR. srcv(jpr_sdrfty)%laction .OR. srcv(jpr_wper)%laction &
1299	.OR. srcv(jpr_hsig)%laction .OR. srcv(jpr_wfreq)%laction) THEN
1300	CALL sbc_stokes()
1301	ENDIF
1302	ENDIF
1303	! ! ========================= !
1304	! ! Stress adsorbed by waves !
1305	! ! ========================= !
1306	IF( srcv(jpr_tauwoc)%laction .AND. ln_tauwoc ) tauoc_wave(:,:) = frcv(jpr_tauwoc)%z3(:,:,1)
1307
1308	! ! ========================= !
1309	! ! Stress component by waves !
1310	! ! ========================= !
1311	IF( srcv(jpr_tauwx)%laction .AND. srcv(jpr_tauwy)%laction .AND. ln_tauw ) THEN
1312	tauw_x(:,:) = frcv(jpr_tauwx)%z3(:,:,1)
1313	tauw_y(:,:) = frcv(jpr_tauwy)%z3(:,:,1)
1314	ENDIF
1315
1316	! ! ========================= !
1317	! ! Wave drag coefficient !
1318	! ! ========================= !
1319	IF( srcv(jpr_wdrag)%laction .AND. ln_cdgw ) cdn_wave(:,:) = frcv(jpr_wdrag)%z3(:,:,1)
1320
1321	! Fields received by SAS when OASIS coupling
1322	! (arrays no more filled at sbcssm stage)
1323	! ! ================== !
1324	! ! SSS !
1325	! ! ================== !
1326	IF( srcv(jpr_soce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1327	sss_m(:,:) = frcv(jpr_soce)%z3(:,:,1)
1328	CALL iom_put( 'sss_m', sss_m )
1329	ENDIF
1330	!
1331	! ! ================== !
1332	! ! SST !
1333	! ! ================== !
1334	IF( srcv(jpr_toce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1335	sst_m(:,:) = frcv(jpr_toce)%z3(:,:,1)
1336	IF( srcv(jpr_soce)%laction .AND. l_useCT ) THEN ! make sure that sst_m is the potential temperature
1337	sst_m(:,:) = eos_pt_from_ct( sst_m(:,:), sss_m(:,:) )
1338	ENDIF
1339	ENDIF
1340	! ! ================== !
1341	! ! SSH !
1342	! ! ================== !
1343	IF( srcv(jpr_ssh )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1344	ssh_m(:,:) = frcv(jpr_ssh )%z3(:,:,1)
1345	CALL iom_put( 'ssh_m', ssh_m )
1346	ENDIF
1347	! ! ================== !
1348	! ! surface currents !
1349	! ! ================== !
1350	IF( srcv(jpr_ocx1)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1351	ssu_m(:,:) = frcv(jpr_ocx1)%z3(:,:,1)
1352	ub (:,:,1) = ssu_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1353	un (:,:,1) = ssu_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1354	CALL iom_put( 'ssu_m', ssu_m )
1355	ENDIF
1356	IF( srcv(jpr_ocy1)%laction ) THEN
1357	ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
1358	vb (:,:,1) = ssv_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1359	vn (:,:,1) = ssv_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1360	CALL iom_put( 'ssv_m', ssv_m )
1361	ENDIF
1362	! ! ======================== !
1363	! ! first T level thickness !
1364	! ! ======================== !
1365	IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1366	e3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
1367	CALL iom_put( 'e3t_m', e3t_m(:,:) )
1368	ENDIF
1369	! ! ================================ !
1370	! ! fraction of solar net radiation !
1371	! ! ================================ !
1372	IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1373	frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
1374	CALL iom_put( 'frq_m', frq_m )
1375	ENDIF
1376
1377	! ! ========================= !
1378	IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
1379	! ! ========================= !
1380	!
1381	! ! total freshwater fluxes over the ocean (emp)
1382	IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
1383	SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
1384	CASE( 'conservative' )
1385	zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
1386	CASE( 'oce only', 'oce and ice' )
1387	zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
1388	CASE default
1389	CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
1390	END SELECT
1391	ELSE
1392	zemp(:,:) = 0._wp
1393	ENDIF
1394	!
1395	! ! runoffs and calving (added in emp)
1396	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1397	IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
1398
1399	IF( srcv(jpr_icb)%laction ) THEN
1400	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1401	rnf(:,:) = rnf(:,:) + fwficb(:,:) ! iceberg added to runfofs
1402	ENDIF
1403	IF( srcv(jpr_isf)%laction ) fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1) ! fresh water flux from the isf (fwfisf <0 mean melting)
1404
1405	IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
1406	ELSE ; emp(:,:) = zemp(:,:)
1407	ENDIF
1408	!
1409	! ! non solar heat flux over the ocean (qns)
1410	IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1411	ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1412	ELSE ; zqns(:,:) = 0._wp
1413	END IF
1414	! update qns over the free ocean with:
1415	IF( nn_components /= jp_iam_opa ) THEN
1416	zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
1417	IF( srcv(jpr_snow )%laction ) THEN
1418	zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * rLfus ! energy for melting solid precipitation over the free ocean
1419	ENDIF
1420	ENDIF
1421	!
1422	IF( srcv(jpr_icb)%laction ) zqns(:,:) = zqns(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove heat content associated to iceberg melting
1423	!
1424	IF( ln_mixcpl ) THEN ; qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
1425	ELSE ; qns(:,:) = zqns(:,:)
1426	ENDIF
1427
1428	! ! solar flux over the ocean (qsr)
1429	IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
1430	ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
1431	ELSE ; zqsr(:,:) = 0._wp
1432	ENDIF
1433	IF( ln_dm2dc .AND. ln_cpl ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
1434	IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
1435	ELSE ; qsr(:,:) = zqsr(:,:)
1436	ENDIF
1437	!
1438	! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
1439	IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
1440	! Ice cover (received by opa in case of opa <-> sas coupling)
1441	IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
1442	!
1443	ENDIF
1444	!
1445	END SUBROUTINE sbc_cpl_rcv
1446
1447
1448	SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
1449	!!----------------------------------------------------------------------
1450	!! * ROUTINE sbc_cpl_ice_tau *
1451	!!
1452	!! ** Purpose : provide the stress over sea-ice in coupled mode
1453	!!
1454	!! ** Method : transform the received stress from the atmosphere into
1455	!! an atmosphere-ice stress in the (i,j) ocean referencial
1456	!! and at the velocity point of the sea-ice model:
1457	!! 'C'-grid : i- (j-) components given at U- (V-) point
1458	!!
1459	!! The received stress are :
1460	!! - defined by 3 components (if cartesian coordinate)
1461	!! or by 2 components (if spherical)
1462	!! - oriented along geographical coordinate (if eastward-northward)
1463	!! or along the local grid coordinate (if local grid)
1464	!! - given at U- and V-point, resp. if received on 2 grids
1465	!! or at a same point (T or I) if received on 1 grid
1466	!! Therefore and if necessary, they are successively
1467	!! processed in order to obtain them
1468	!! first as 2 components on the sphere
1469	!! second as 2 components oriented along the local grid
1470	!! third as 2 components on the ice grid point
1471	!!
1472	!! Except in 'oce and ice' case, only one vector stress field
1473	!! is received. It has already been processed in sbc_cpl_rcv
1474	!! so that it is now defined as (i,j) components given at U-
1475	!! and V-points, respectively.
1476	!!
1477	!! ** Action : return ptau_i, ptau_j, the stress over the ice
1478	!!----------------------------------------------------------------------
1479	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
1480	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
1481	!!
1482	INTEGER :: ji, jj ! dummy loop indices
1483	INTEGER :: itx ! index of taux over ice
1484	REAL(wp) :: zztmp1, zztmp2
1485	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty
1486	!!----------------------------------------------------------------------
1487	!
1488	IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
1489	ELSE ; itx = jpr_otx1
1490	ENDIF
1491
1492	! do something only if we just received the stress from atmosphere
1493	IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
1494	! ! ======================= !
1495	IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
1496	! ! ======================= !
1497	!
1498	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1499	! ! (cartesian to spherical -> 3 to 2 components)
1500	CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
1501	& srcv(jpr_itx1)%clgrid, ztx, zty )
1502	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1503	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1504	!
1505	IF( srcv(jpr_itx2)%laction ) THEN
1506	CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
1507	& srcv(jpr_itx2)%clgrid, ztx, zty )
1508	frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1509	frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1510	ENDIF
1511	!
1512	ENDIF
1513	!
1514	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1515	! ! (geographical to local grid -> rotate the components)
1516	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
1517	IF( srcv(jpr_itx2)%laction ) THEN
1518	CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
1519	ELSE
1520	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
1521	ENDIF
1522	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1523	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
1524	ENDIF
1525	! ! ======================= !
1526	ELSE ! use ocean stress !
1527	! ! ======================= !
1528	frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
1529	frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
1530	!
1531	ENDIF
1532	! ! ======================= !
1533	! ! put on ice grid !
1534	! ! ======================= !
1535	!
1536	! j+1 j -----V---F
1537	! ice stress on ice velocity point ! \|
1538	! (C-grid ==>(U,V)) j \| T U
1539	! \| \|
1540	! j j-1 -I-------\|
1541	! (for I) \| \|
1542	! i-1 i i
1543	! i i+1 (for I)
1544	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1545	CASE( 'U' )
1546	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
1547	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1548	CASE( 'T' )
1549	DO jj = 2, jpjm1 ! T ==> (U,V)
1550	DO ji = fs_2, fs_jpim1 ! vector opt.
1551	! take care of the land-sea mask to avoid "pollution" of coastal stress. p[uv]taui used in frazil and rheology
1552	zztmp1 = 0.5_wp * ( 2. - umask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji+1,jj ,1) )
1553	zztmp2 = 0.5_wp * ( 2. - vmask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji ,jj+1,1) )
1554	p_taui(ji,jj) = zztmp1 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
1555	p_tauj(ji,jj) = zztmp2 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
1556	END DO
1557	END DO
1558	CALL lbc_lnk_multi( 'sbccpl', p_taui, 'U', -1., p_tauj, 'V', -1. )
1559	END SELECT
1560
1561	ENDIF
1562	!
1563	END SUBROUTINE sbc_cpl_ice_tau
1564
1565
1566	SUBROUTINE sbc_cpl_ice_flx( picefr, palbi, psst, pist, phs, phi )
1567	!!----------------------------------------------------------------------
1568	!! * ROUTINE sbc_cpl_ice_flx *
1569	!!
1570	!! ** Purpose : provide the heat and freshwater fluxes of the ocean-ice system
1571	!!
1572	!! ** Method : transform the fields received from the atmosphere into
1573	!! surface heat and fresh water boundary condition for the
1574	!! ice-ocean system. The following fields are provided:
1575	!! * total non solar, solar and freshwater fluxes (qns_tot,
1576	!! qsr_tot and emp_tot) (total means weighted ice-ocean flux)
1577	!! NB: emp_tot include runoffs and calving.
1578	!! * fluxes over ice (qns_ice, qsr_ice, emp_ice) where
1579	!! emp_ice = sublimation - solid precipitation as liquid
1580	!! precipitation are re-routed directly to the ocean and
1581	!! calving directly enter the ocean (runoffs are read but included in trasbc.F90)
1582	!! * solid precipitation (sprecip), used to add to qns_tot
1583	!! the heat lost associated to melting solid precipitation
1584	!! over the ocean fraction.
1585	!! * heat content of rain, snow and evap can also be provided,
1586	!! otherwise heat flux associated with these mass flux are
1587	!! guessed (qemp_oce, qemp_ice)
1588	!!
1589	!! - the fluxes have been separated from the stress as
1590	!! (a) they are updated at each ice time step compare to
1591	!! an update at each coupled time step for the stress, and
1592	!! (b) the conservative computation of the fluxes over the
1593	!! sea-ice area requires the knowledge of the ice fraction
1594	!! after the ice advection and before the ice thermodynamics,
1595	!! so that the stress is updated before the ice dynamics
1596	!! while the fluxes are updated after it.
1597	!!
1598	!! ** Details
1599	!! qns_tot = (1-a) * qns_oce + a * qns_ice => provided
1600	!! + qemp_oce + qemp_ice => recalculated and added up to qns
1601	!!
1602	!! qsr_tot = (1-a) * qsr_oce + a * qsr_ice => provided
1603	!!
1604	!! emp_tot = emp_oce + emp_ice => calving is provided and added to emp_tot (and emp_oce).
1605	!! runoff (which includes rivers+icebergs) and iceshelf
1606	!! are provided but not included in emp here. Only runoff will
1607	!! be included in emp in other parts of NEMO code
1608	!! ** Action : update at each nf_ice time step:
1609	!! qns_tot, qsr_tot non-solar and solar total heat fluxes
1610	!! qns_ice, qsr_ice non-solar and solar heat fluxes over the ice
1611	!! emp_tot total evaporation - precipitation(liquid and solid) (-calving)
1612	!! emp_ice ice sublimation - solid precipitation over the ice
1613	!! dqns_ice d(non-solar heat flux)/d(Temperature) over the ice
1614	!! sprecip solid precipitation over the ocean
1615	!!----------------------------------------------------------------------
1616	REAL(wp), INTENT(in) , DIMENSION(:,:) :: picefr ! ice fraction [0 to 1]
1617	! !! ! optional arguments, used only in 'mixed oce-ice' case or for Met-Office coupling
1618	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: palbi ! all skies ice albedo
1619	REAL(wp), INTENT(in) , DIMENSION(:,: ), OPTIONAL :: psst ! sea surface temperature [Celsius]
1620	REAL(wp), INTENT(inout), DIMENSION(:,:,:), OPTIONAL :: pist ! ice surface temperature [Kelvin] => inout for Met-Office
1621	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: phs ! snow depth [m]
1622	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: phi ! ice thickness [m]
1623	!
1624	INTEGER :: ji, jj, jl ! dummy loop index
1625	REAL(wp) :: ztri ! local scalar
1626	REAL(wp), DIMENSION(jpi,jpj) :: zcptn, zcptrain, zcptsnw, ziceld, zmsk, zsnw
1627	REAL(wp), DIMENSION(jpi,jpj) :: zemp_tot, zemp_ice, zemp_oce, ztprecip, zsprecip , zevap_oce, zdevap_ice
1628	REAL(wp), DIMENSION(jpi,jpj) :: zqns_tot, zqns_oce, zqsr_tot, zqsr_oce, zqprec_ice, zqemp_oce, zqemp_ice
1629	REAL(wp), DIMENSION(jpi,jpj,jpl) :: zqns_ice, zqsr_ice, zdqns_ice, zqevap_ice, zevap_ice, zqtr_ice_top, ztsu
1630	!!----------------------------------------------------------------------
1631	!
1632	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1633	ziceld(:,:) = 1._wp - picefr(:,:)
1634	zcptn (:,:) = rcp * sst_m(:,:)
1635	!
1636	! ! ========================= !
1637	! ! freshwater budget ! (emp_tot)
1638	! ! ========================= !
1639	!
1640	! ! solid Precipitation (sprecip)
1641	! ! liquid + solid Precipitation (tprecip)
1642	! ! total Evaporation - total Precipitation (emp_tot)
1643	! ! sublimation - solid precipitation (cell average) (emp_ice)
1644	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
1645	CASE( 'conservative' ) ! received fields: jpr_rain, jpr_snow, jpr_ievp, jpr_tevp
1646	zsprecip(:,:) = frcv(jpr_snow)%z3(:,:,1) ! May need to ensure positive here
1647	ztprecip(:,:) = frcv(jpr_rain)%z3(:,:,1) + zsprecip(:,:) ! May need to ensure positive here
1648	zemp_tot(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ztprecip(:,:)
1649	zemp_ice(:,:) = ( frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_snow)%z3(:,:,1) ) * picefr(:,:)
1650	CASE( 'oce and ice' ) ! received fields: jpr_sbpr, jpr_semp, jpr_oemp, jpr_ievp
1651	zemp_tot(:,:) = ziceld(:,:) * frcv(jpr_oemp)%z3(:,:,1) + picefr(:,:) * frcv(jpr_sbpr)%z3(:,:,1)
1652	zemp_ice(:,:) = frcv(jpr_semp)%z3(:,:,1) * picefr(:,:)
1653	zsprecip(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_semp)%z3(:,:,1)
1654	ztprecip(:,:) = frcv(jpr_semp)%z3(:,:,1) - frcv(jpr_sbpr)%z3(:,:,1) + zsprecip(:,:)
1655	CASE( 'none' ) ! Not available as for now: needs additional coding below when computing zevap_oce
1656	! ! since fields received are not defined with none option
1657	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_emp value in namelist namsbc_cpl' )
1658	END SELECT
1659
1660	#if defined key_si3
1661	! zsnw = snow fraction over ice after wind blowing (=picefr if no blowing)
1662	zsnw(:,:) = 0._wp ; CALL ice_thd_snwblow( ziceld, zsnw )
1663
1664	! --- evaporation minus precipitation corrected (because of wind blowing on snow) --- !
1665	zemp_ice(:,:) = zemp_ice(:,:) + zsprecip(:,:) * ( picefr(:,:) - zsnw(:,:) ) ! emp_ice = A * sublimation - zsnw * sprecip
1666	zemp_oce(:,:) = zemp_tot(:,:) - zemp_ice(:,:) ! emp_oce = emp_tot - emp_ice
1667
1668	! --- evaporation over ocean (used later for qemp) --- !
1669	zevap_oce(:,:) = frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:)
1670
1671	! --- evaporation over ice (kg/m2/s) --- !
1672	DO jl=1,jpl
1673	IF (sn_rcv_emp%clcat == 'yes') THEN ; zevap_ice(:,:,jl) = frcv(jpr_ievp)%z3(:,:,jl)
1674	ELSE ; zevap_ice(:,:,jl) = frcv(jpr_ievp)%z3(:,:,1 ) ; ENDIF
1675	ENDDO
1676
1677	! since the sensitivity of evap to temperature (devap/dT) is not prescribed by the atmosphere, we set it to 0
1678	! therefore, sublimation is not redistributed over the ice categories when no subgrid scale fluxes are provided by atm.
1679	zdevap_ice(:,:) = 0._wp
1680
1681	! --- Continental fluxes --- !
1682	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1683	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1684	ENDIF
1685	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot and emp_oce)
1686	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1687	zemp_oce(:,:) = zemp_oce(:,:) - frcv(jpr_cal)%z3(:,:,1)
1688	ENDIF
1689	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1690	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1691	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1692	ENDIF
1693	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1694	fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1695	ENDIF
1696
1697	IF( ln_mixcpl ) THEN
1698	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1699	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1700	emp_oce(:,:) = emp_oce(:,:) * xcplmask(:,:,0) + zemp_oce(:,:) * zmsk(:,:)
1701	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1702	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1703	DO jl = 1, jpl
1704	evap_ice (:,:,jl) = evap_ice (:,:,jl) * xcplmask(:,:,0) + zevap_ice (:,:,jl) * zmsk(:,:)
1705	devap_ice(:,:,jl) = devap_ice(:,:,jl) * xcplmask(:,:,0) + zdevap_ice(:,:) * zmsk(:,:)
1706	END DO
1707	ELSE
1708	emp_tot (:,:) = zemp_tot (:,:)
1709	emp_ice (:,:) = zemp_ice (:,:)
1710	emp_oce (:,:) = zemp_oce (:,:)
1711	sprecip (:,:) = zsprecip (:,:)
1712	tprecip (:,:) = ztprecip (:,:)
1713	evap_ice(:,:,:) = zevap_ice(:,:,:)
1714	DO jl = 1, jpl
1715	devap_ice(:,:,jl) = zdevap_ice(:,:)
1716	END DO
1717	ENDIF
1718
1719	#else
1720	zsnw(:,:) = picefr(:,:)
1721	! --- Continental fluxes --- !
1722	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1723	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1724	ENDIF
1725	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot)
1726	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1727	ENDIF
1728	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1729	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1730	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1731	ENDIF
1732	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1733	fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1734	ENDIF
1735	!
1736	IF( ln_mixcpl ) THEN
1737	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1738	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1739	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1740	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1741	ELSE
1742	emp_tot(:,:) = zemp_tot(:,:)
1743	emp_ice(:,:) = zemp_ice(:,:)
1744	sprecip(:,:) = zsprecip(:,:)
1745	tprecip(:,:) = ztprecip(:,:)
1746	ENDIF
1747	!
1748	#endif
1749
1750	! outputs
1751	!! IF( srcv(jpr_rnf)%laction ) CALL iom_put( 'runoffs' , rnf(:,:) * tmask(:,:,1) ) ! runoff
1752	!! IF( srcv(jpr_isf)%laction ) CALL iom_put( 'iceshelf_cea', -fwfisf(:,:) * tmask(:,:,1) ) ! iceshelf
1753	IF( srcv(jpr_cal)%laction ) CALL iom_put( 'calving_cea' , frcv(jpr_cal)%z3(:,:,1) * tmask(:,:,1) ) ! calving
1754	IF( srcv(jpr_icb)%laction ) CALL iom_put( 'iceberg_cea' , frcv(jpr_icb)%z3(:,:,1) * tmask(:,:,1) ) ! icebergs
1755	CALL iom_put( 'snowpre' , sprecip(:,:) ) ! Snow
1756	CALL iom_put( 'precip' , tprecip(:,:) ) ! total precipitation
1757	IF ( iom_use('rain') ) CALL iom_put( 'rain' , tprecip(:,:) - sprecip(:,:) ) ! liquid precipitation
1758	IF ( iom_use('snow_ao_cea') ) CALL iom_put( 'snow_ao_cea' , sprecip(:,:) * ( 1._wp - zsnw(:,:) ) ) ! Snow over ice-free ocean (cell average)
1759	IF ( iom_use('snow_ai_cea') ) CALL iom_put( 'snow_ai_cea' , sprecip(:,:) * zsnw(:,:) ) ! Snow over sea-ice (cell average)
1760	IF ( iom_use('rain_ao_cea') ) CALL iom_put( 'rain_ao_cea' , ( tprecip(:,:) - sprecip(:,:) ) * picefr(:,:) ) ! liquid precipitation over ocean (cell average)
1761	IF ( iom_use('subl_ai_cea') ) CALL iom_put( 'subl_ai_cea' , frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) * tmask(:,:,1) ) ! Sublimation over sea-ice (cell average)
1762	IF ( iom_use('evap_ao_cea') ) CALL iom_put( 'evap_ao_cea' , ( frcv(jpr_tevp)%z3(:,:,1) &
1763	& - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) ) * tmask(:,:,1) ) ! ice-free oce evap (cell average)
1764	! note: runoff output is done in sbcrnf (which includes icebergs too) and iceshelf output is done in sbcisf
1765	!
1766	! ! ========================= !
1767	SELECT CASE( TRIM( sn_rcv_qns%cldes ) ) ! non solar heat fluxes ! (qns)
1768	! ! ========================= !
1769	CASE( 'oce only' ) ! the required field is directly provided
1770	zqns_tot(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1771	CASE( 'conservative' ) ! the required fields are directly provided
1772	zqns_tot(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1773	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1774	zqns_ice(:,:,1:jpl) = frcv(jpr_qnsice)%z3(:,:,1:jpl)
1775	ELSE
1776	DO jl = 1, jpl
1777	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1) ! Set all category values equal
1778	END DO
1779	ENDIF
1780	CASE( 'oce and ice' ) ! the total flux is computed from ocean and ice fluxes
1781	zqns_tot(:,:) = ziceld(:,:) * frcv(jpr_qnsoce)%z3(:,:,1)
1782	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1783	DO jl=1,jpl
1784	zqns_tot(:,: ) = zqns_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qnsice)%z3(:,:,jl)
1785	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,jl)
1786	ENDDO
1787	ELSE
1788	zqns_tot(:,:) = zqns_tot(:,:) + picefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1789	DO jl = 1, jpl
1790	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1791	END DO
1792	ENDIF
1793	CASE( 'mixed oce-ice' ) ! the ice flux is cumputed from the total flux, the SST and ice informations
1794	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1795	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1796	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1797	DO jl = 1, jpl
1798	zqns_ice(:,:,jl) = frcv(jpr_qnsmix)%z3(:,:,jl) &
1799	& + frcv(jpr_dqnsdt)%z3(:,:,jl) * ( pist(:,:,jl) - ( ( rt0 + psst(:,:) ) * ziceld(:,:) &
1800	& + pist(:,:,jl) * picefr(:,:) ) )
1801	END DO
1802	ELSE
1803	DO jl = 1, jpl
1804	zqns_ice(:,:,jl) = frcv(jpr_qnsmix)%z3(:,:, 1) &
1805	& + frcv(jpr_dqnsdt)%z3(:,:, 1) * ( pist(:,:,jl) - ( ( rt0 + psst(:,:) ) * ziceld(:,:) &
1806	& + pist(:,:,jl) * picefr(:,:) ) )
1807	END DO
1808	ENDIF
1809	END SELECT
1810	!
1811	! --- calving (removed from qns_tot) --- !
1812	IF( srcv(jpr_cal)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_cal)%z3(:,:,1) * rLfus ! remove latent heat of calving
1813	! we suppose it melts at 0deg, though it should be temp. of surrounding ocean
1814	! --- iceberg (removed from qns_tot) --- !
1815	IF( srcv(jpr_icb)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove latent heat of iceberg melting
1816
1817	#if defined key_si3
1818	! --- non solar flux over ocean --- !
1819	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
1820	zqns_oce = 0._wp
1821	WHERE( ziceld /= 0._wp ) zqns_oce(:,:) = ( zqns_tot(:,:) - SUM( a_i * zqns_ice, dim=3 ) ) / ziceld(:,:)
1822
1823	! Heat content per unit mass of snow (J/kg)
1824	WHERE( SUM( a_i, dim=3 ) > 1.e-10 ) ; zcptsnw(:,:) = rcpi * SUM( (tn_ice - rt0) * a_i, dim=3 ) / SUM( a_i, dim=3 )
1825	ELSEWHERE ; zcptsnw(:,:) = zcptn(:,:)
1826	ENDWHERE
1827	! Heat content per unit mass of rain (J/kg)
1828	zcptrain(:,:) = rcp * ( SUM( (tn_ice(:,:,:) - rt0) * a_i(:,:,:), dim=3 ) + sst_m(:,:) * ziceld(:,:) )
1829
1830	! --- enthalpy of snow precip over ice in J/m3 (to be used in 1D-thermo) --- !
1831	zqprec_ice(:,:) = rhos * ( zcptsnw(:,:) - rLfus )
1832
1833	! --- heat content of evap over ice in W/m2 (to be used in 1D-thermo) --- !
1834	DO jl = 1, jpl
1835	zqevap_ice(:,:,jl) = 0._wp ! should be -evap * ( ( Tice - rt0 ) * rcpi ) but atm. does not take it into account
1836	END DO
1837
1838	! --- heat flux associated with emp (W/m2) --- !
1839	zqemp_oce(:,:) = - zevap_oce(:,:) * zcptn (:,:) & ! evap
1840	& + ( ztprecip(:,:) - zsprecip(:,:) ) * zcptrain(:,:) & ! liquid precip
1841	& + zsprecip(:,:) * ( 1._wp - zsnw ) * ( zcptsnw (:,:) - rLfus ) ! solid precip over ocean + snow melting
1842	zqemp_ice(:,:) = zsprecip(:,:) * zsnw * ( zcptsnw (:,:) - rLfus ) ! solid precip over ice (qevap_ice=0 since atm. does not take it into account)
1843	!! zqemp_ice(:,:) = - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) * zcptsnw (:,:) & ! ice evap
1844	!! & + zsprecip(:,:) * zsnw * zqprec_ice(:,:) * r1_rhos ! solid precip over ice
1845
1846	! --- total non solar flux (including evap/precip) --- !
1847	zqns_tot(:,:) = zqns_tot(:,:) + zqemp_ice(:,:) + zqemp_oce(:,:)
1848
1849	! --- in case both coupled/forced are active, we must mix values --- !
1850	IF( ln_mixcpl ) THEN
1851	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1852	qns_oce(:,:) = qns_oce(:,:) * xcplmask(:,:,0) + zqns_oce(:,:)* zmsk(:,:)
1853	DO jl=1,jpl
1854	qns_ice (:,:,jl) = qns_ice (:,:,jl) * xcplmask(:,:,0) + zqns_ice (:,:,jl)* zmsk(:,:)
1855	qevap_ice(:,:,jl) = qevap_ice(:,:,jl) * xcplmask(:,:,0) + zqevap_ice(:,:,jl)* zmsk(:,:)
1856	ENDDO
1857	qprec_ice(:,:) = qprec_ice(:,:) * xcplmask(:,:,0) + zqprec_ice(:,:)* zmsk(:,:)
1858	qemp_oce (:,:) = qemp_oce(:,:) * xcplmask(:,:,0) + zqemp_oce(:,:)* zmsk(:,:)
1859	qemp_ice (:,:) = qemp_ice(:,:) * xcplmask(:,:,0) + zqemp_ice(:,:)* zmsk(:,:)
1860	ELSE
1861	qns_tot (:,: ) = zqns_tot (:,: )
1862	qns_oce (:,: ) = zqns_oce (:,: )
1863	qns_ice (:,:,:) = zqns_ice (:,:,:)
1864	qevap_ice(:,:,:) = zqevap_ice(:,:,:)
1865	qprec_ice(:,: ) = zqprec_ice(:,: )
1866	qemp_oce (:,: ) = zqemp_oce (:,: )
1867	qemp_ice (:,: ) = zqemp_ice (:,: )
1868	ENDIF
1869
1870	#else
1871	zcptsnw (:,:) = zcptn(:,:)
1872	zcptrain(:,:) = zcptn(:,:)
1873
1874	! clem: this formulation is certainly wrong... but better than it was...
1875	zqns_tot(:,:) = zqns_tot(:,:) & ! zqns_tot update over free ocean with:
1876	& - ( ziceld(:,:) * zsprecip(:,:) * rLfus ) & ! remove the latent heat flux of solid precip. melting
1877	& - ( zemp_tot(:,:) & ! remove the heat content of mass flux (assumed to be at SST)
1878	& - zemp_ice(:,:) ) * zcptn(:,:)
1879
1880	IF( ln_mixcpl ) THEN
1881	qns_tot(:,:) = qns(:,:) * ziceld(:,:) + SUM( qns_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1882	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1883	DO jl=1,jpl
1884	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
1885	ENDDO
1886	ELSE
1887	qns_tot(:,: ) = zqns_tot(:,: )
1888	qns_ice(:,:,:) = zqns_ice(:,:,:)
1889	ENDIF
1890
1891	#endif
1892	! outputs
1893	IF ( srcv(jpr_cal)%laction ) CALL iom_put('hflx_cal_cea' , - frcv(jpr_cal)%z3(:,:,1) * rLfus ) ! latent heat from calving
1894	IF ( srcv(jpr_icb)%laction ) CALL iom_put('hflx_icb_cea' , - frcv(jpr_icb)%z3(:,:,1) * rLfus ) ! latent heat from icebergs melting
1895	IF ( iom_use( 'hflx_rain_cea') ) CALL iom_put('hflx_rain_cea' , ( tprecip(:,:) - sprecip(:,:) ) * zcptrain(:,:) ) ! heat flux from rain (cell average)
1896	IF ( iom_use( 'hflx_evap_cea') ) CALL iom_put('hflx_evap_cea' , ( frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) ) &
1897	& * zcptn(:,:) * tmask(:,:,1) ) ! heat flux from evap (cell average)
1898	IF ( iom_use( 'hflx_prec_cea') ) CALL iom_put('hflx_prec_cea' , sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) & ! heat flux from all precip (cell avg)
1899	& + ( tprecip(:,:) - sprecip(:,:) ) * zcptrain(:,:) )
1900	IF ( iom_use( 'hflx_snow_cea') ) CALL iom_put('hflx_snow_cea' , sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) ) ! heat flux from snow (cell average)
1901	IF ( iom_use('hflx_snow_ao_cea') ) CALL iom_put('hflx_snow_ao_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) * ( 1._wp - zsnw(:,:) ) ) ! heat flux from snow (over ocean)
1902	IF ( iom_use('hflx_snow_ai_cea') ) CALL iom_put('hflx_snow_ai_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) * zsnw(:,:) ) ! heat flux from snow (over ice)
1903	! note: hflx for runoff and iceshelf are done in sbcrnf and sbcisf resp.
1904	!
1905	! ! ========================= !
1906	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) ) ! solar heat fluxes ! (qsr)
1907	! ! ========================= !
1908	CASE( 'oce only' )
1909	zqsr_tot(:,: ) = MAX( 0._wp , frcv(jpr_qsroce)%z3(:,:,1) )
1910	CASE( 'conservative' )
1911	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1912	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1913	zqsr_ice(:,:,1:jpl) = frcv(jpr_qsrice)%z3(:,:,1:jpl)
1914	ELSE
1915	! Set all category values equal for the moment
1916	DO jl = 1, jpl
1917	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1918	END DO
1919	ENDIF
1920	CASE( 'oce and ice' )
1921	zqsr_tot(:,: ) = ziceld(:,:) * frcv(jpr_qsroce)%z3(:,:,1)
1922	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1923	DO jl = 1, jpl
1924	zqsr_tot(:,: ) = zqsr_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qsrice)%z3(:,:,jl)
1925	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,jl)
1926	END DO
1927	ELSE
1928	zqsr_tot(:,:) = zqsr_tot(:,:) + picefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
1929	DO jl = 1, jpl
1930	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
1931	END DO
1932	ENDIF
1933	CASE( 'mixed oce-ice' )
1934	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
1935	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1936	! Create solar heat flux over ice using incoming solar heat flux and albedos
1937	! ( see OASIS3 user guide, 5th edition, p39 )
1938	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1939	DO jl = 1, jpl
1940	zqsr_ice(:,:,jl) = frcv(jpr_qsrmix)%z3(:,:,jl) * ( 1.- palbi(:,:,jl) ) &
1941	& / ( 1.- ( alb_oce_mix(:,: ) * ziceld(:,:) &
1942	& + palbi (:,:,jl) * picefr(:,:) ) )
1943	END DO
1944	ELSE
1945	DO jl = 1, jpl
1946	zqsr_ice(:,:,jl) = frcv(jpr_qsrmix)%z3(:,:, 1) * ( 1.- palbi(:,:,jl) ) &
1947	& / ( 1.- ( alb_oce_mix(:,: ) * ziceld(:,:) &
1948	& + palbi (:,:,jl) * picefr(:,:) ) )
1949	END DO
1950	ENDIF
1951	CASE( 'none' ) ! Not available as for now: needs additional coding
1952	! ! since fields received, here zqsr_tot, are not defined with none option
1953	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_qsr value in namelist namsbc_cpl' )
1954	END SELECT
1955	IF( ln_dm2dc .AND. ln_cpl ) THEN ! modify qsr to include the diurnal cycle
1956	zqsr_tot(:,: ) = sbc_dcy( zqsr_tot(:,: ) )
1957	DO jl = 1, jpl
1958	zqsr_ice(:,:,jl) = sbc_dcy( zqsr_ice(:,:,jl) )
1959	END DO
1960	ENDIF
1961
1962	#if defined key_si3
1963	! --- solar flux over ocean --- !
1964	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
1965	zqsr_oce = 0._wp
1966	WHERE( ziceld /= 0._wp ) zqsr_oce(:,:) = ( zqsr_tot(:,:) - SUM( a_i * zqsr_ice, dim=3 ) ) / ziceld(:,:)
1967
1968	IF( ln_mixcpl ) THEN ; qsr_oce(:,:) = qsr_oce(:,:) * xcplmask(:,:,0) + zqsr_oce(:,:)* zmsk(:,:)
1969	ELSE ; qsr_oce(:,:) = zqsr_oce(:,:) ; ENDIF
1970	#endif
1971
1972	IF( ln_mixcpl ) THEN
1973	qsr_tot(:,:) = qsr(:,:) * ziceld(:,:) + SUM( qsr_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1974	qsr_tot(:,:) = qsr_tot(:,:) * xcplmask(:,:,0) + zqsr_tot(:,:)* zmsk(:,:)
1975	DO jl = 1, jpl
1976	qsr_ice(:,:,jl) = qsr_ice(:,:,jl) * xcplmask(:,:,0) + zqsr_ice(:,:,jl)* zmsk(:,:)
1977	END DO
1978	ELSE
1979	qsr_tot(:,: ) = zqsr_tot(:,: )
1980	qsr_ice(:,:,:) = zqsr_ice(:,:,:)
1981	ENDIF
1982
1983	! ! ========================= !
1984	SELECT CASE( TRIM( sn_rcv_dqnsdt%cldes ) ) ! d(qns)/dt !
1985	! ! ========================= !
1986	CASE ('coupled')
1987	IF ( TRIM(sn_rcv_dqnsdt%clcat) == 'yes' ) THEN
1988	zdqns_ice(:,:,1:jpl) = frcv(jpr_dqnsdt)%z3(:,:,1:jpl)
1989	ELSE
1990	! Set all category values equal for the moment
1991	DO jl=1,jpl
1992	zdqns_ice(:,:,jl) = frcv(jpr_dqnsdt)%z3(:,:,1)
1993	ENDDO
1994	ENDIF
1995	END SELECT
1996
1997	IF( ln_mixcpl ) THEN
1998	DO jl=1,jpl
1999	dqns_ice(:,:,jl) = dqns_ice(:,:,jl) * xcplmask(:,:,0) + zdqns_ice(:,:,jl) * zmsk(:,:)
2000	ENDDO
2001	ELSE
2002	dqns_ice(:,:,:) = zdqns_ice(:,:,:)
2003	ENDIF
2004
2005	#if defined key_si3
2006	! ! ========================= !
2007	SELECT CASE( TRIM( sn_rcv_iceflx%cldes ) ) ! ice topmelt and botmelt !
2008	! ! ========================= !
2009	CASE ('coupled')
2010	IF( ln_mixcpl ) THEN
2011	DO jl=1,jpl
2012	qml_ice(:,:,jl) = qml_ice(:,:,jl) * xcplmask(:,:,0) + frcv(jpr_topm)%z3(:,:,jl) * zmsk(:,:)
2013	qcn_ice(:,:,jl) = qcn_ice(:,:,jl) * xcplmask(:,:,0) + frcv(jpr_botm)%z3(:,:,jl) * zmsk(:,:)
2014	ENDDO
2015	ELSE
2016	qml_ice(:,:,:) = frcv(jpr_topm)%z3(:,:,:)
2017	qcn_ice(:,:,:) = frcv(jpr_botm)%z3(:,:,:)
2018	ENDIF
2019	END SELECT
2020	! ! ========================= !
2021	! ! Transmitted Qsr ! [W/m2]
2022	! ! ========================= !
2023	IF( .NOT.ln_cndflx ) THEN !== No conduction flux as surface forcing ==!
2024	!
2025	! ! ===> used prescribed cloud fraction representative for polar oceans in summer (0.81)
2026	ztri = 0.18 * ( 1.0 - cldf_ice ) + 0.35 * cldf_ice ! surface transmission when hi>10cm (Grenfell Maykut 77)
2027	!
2028	WHERE ( phs(:,:,:) <= 0._wp .AND. phi(:,:,:) < 0.1_wp ) ! linear decrease from hi=0 to 10cm
2029	zqtr_ice_top(:,:,:) = qsr_ice(:,:,:) * ( ztri + ( 1._wp - ztri ) * ( 1._wp - phi(:,:,:) * 10._wp ) )
2030	ELSEWHERE( phs(:,:,:) <= 0._wp .AND. phi(:,:,:) >= 0.1_wp ) ! constant (ztri) when hi>10cm
2031	zqtr_ice_top(:,:,:) = qsr_ice(:,:,:) * ztri
2032	ELSEWHERE ! zero when hs>0
2033	zqtr_ice_top(:,:,:) = 0._wp
2034	END WHERE
2035	!
2036	ELSEIF( ln_cndflx .AND. .NOT.ln_cndemulate ) THEN !== conduction flux as surface forcing ==!
2037	!
2038	! ! ===> here we must receive the qtr_ice_top array from the coupler
2039	! for now just assume zero (fully opaque ice)
2040	zqtr_ice_top(:,:,:) = 0._wp
2041	!
2042	ENDIF
2043	!
2044	IF( ln_mixcpl ) THEN
2045	DO jl=1,jpl
2046	qtr_ice_top(:,:,jl) = qtr_ice_top(:,:,jl) * xcplmask(:,:,0) + zqtr_ice_top(:,:,jl) * zmsk(:,:)
2047	ENDDO
2048	ELSE
2049	qtr_ice_top(:,:,:) = zqtr_ice_top(:,:,:)
2050	ENDIF
2051	! ! ================== !
2052	! ! ice skin temp. !
2053	! ! ================== !
2054	! needed by Met Office
2055	IF( srcv(jpr_ts_ice)%laction ) THEN
2056	WHERE ( frcv(jpr_ts_ice)%z3(:,:,:) > 0.0 ) ; ztsu(:,:,:) = 0. + rt0
2057	ELSEWHERE( frcv(jpr_ts_ice)%z3(:,:,:) < -60. ) ; ztsu(:,:,:) = -60. + rt0
2058	ELSEWHERE ; ztsu(:,:,:) = frcv(jpr_ts_ice)%z3(:,:,:) + rt0
2059	END WHERE
2060	!
2061	IF( ln_mixcpl ) THEN
2062	DO jl=1,jpl
2063	pist(:,:,jl) = pist(:,:,jl) * xcplmask(:,:,0) + ztsu(:,:,jl) * zmsk(:,:)
2064	ENDDO
2065	ELSE
2066	pist(:,:,:) = ztsu(:,:,:)
2067	ENDIF
2068	!
2069	ENDIF
2070	!
2071	#endif
2072	!
2073	END SUBROUTINE sbc_cpl_ice_flx
2074
2075
2076	SUBROUTINE sbc_cpl_snd( kt )
2077	!!----------------------------------------------------------------------
2078	!! * ROUTINE sbc_cpl_snd *
2079	!!
2080	!! ** Purpose : provide the ocean-ice informations to the atmosphere
2081	!!
2082	!! ** Method : send to the atmosphere through a call to cpl_snd
2083	!! all the needed fields (as defined in sbc_cpl_init)
2084	!!----------------------------------------------------------------------
2085	INTEGER, INTENT(in) :: kt
2086	!
2087	INTEGER :: ji, jj, jl ! dummy loop indices
2088	INTEGER :: isec, info ! local integer
2089	REAL(wp) :: zumax, zvmax
2090	REAL(wp), DIMENSION(jpi,jpj) :: zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1
2091	REAL(wp), DIMENSION(jpi,jpj,jpl) :: ztmp3, ztmp4
2092	!!----------------------------------------------------------------------
2093	!
2094	isec = ( kt - nit000 ) * NINT( rdt ) ! date of exchanges
2095
2096	zfr_l(:,:) = 1.- fr_i(:,:)
2097	! ! ------------------------- !
2098	! ! Surface temperature ! in Kelvin
2099	! ! ------------------------- !
2100	IF( ssnd(jps_toce)%laction .OR. ssnd(jps_tice)%laction .OR. ssnd(jps_tmix)%laction ) THEN
2101
2102	IF ( nn_components == jp_iam_opa ) THEN
2103	ztmp1(:,:) = tsn(:,:,1,jp_tem) ! send temperature as it is (potential or conservative) -> use of l_useCT on the received part
2104	ELSE
2105	! we must send the surface potential temperature
2106	IF( l_useCT ) THEN ; ztmp1(:,:) = eos_pt_from_ct( tsn(:,:,1,jp_tem), tsn(:,:,1,jp_sal) )
2107	ELSE ; ztmp1(:,:) = tsn(:,:,1,jp_tem)
2108	ENDIF
2109	!
2110	SELECT CASE( sn_snd_temp%cldes)
2111	CASE( 'oce only' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2112	CASE( 'oce and ice' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2113	SELECT CASE( sn_snd_temp%clcat )
2114	CASE( 'yes' )
2115	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl)
2116	CASE( 'no' )
2117	WHERE( SUM( a_i, dim=3 ) /= 0. )
2118	ztmp3(:,:,1) = SUM( tn_ice * a_i, dim=3 ) / SUM( a_i, dim=3 )
2119	ELSEWHERE
2120	ztmp3(:,:,1) = rt0
2121	END WHERE
2122	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2123	END SELECT
2124	CASE( 'weighted oce and ice' ) ; ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2125	SELECT CASE( sn_snd_temp%clcat )
2126	CASE( 'yes' )
2127	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2128	CASE( 'no' )
2129	ztmp3(:,:,:) = 0.0
2130	DO jl=1,jpl
2131	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2132	ENDDO
2133	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2134	END SELECT
2135	CASE( 'oce and weighted ice') ; ztmp1(:,:) = tsn(:,:,1,jp_tem) + rt0
2136	SELECT CASE( sn_snd_temp%clcat )
2137	CASE( 'yes' )
2138	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2139	CASE( 'no' )
2140	ztmp3(:,:,:) = 0.0
2141	DO jl=1,jpl
2142	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2143	ENDDO
2144	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2145	END SELECT
2146	CASE( 'mixed oce-ice' )
2147	ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2148	DO jl=1,jpl
2149	ztmp1(:,:) = ztmp1(:,:) + tn_ice(:,:,jl) * a_i(:,:,jl)
2150	ENDDO
2151	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%cldes' )
2152	END SELECT
2153	ENDIF
2154	IF( ssnd(jps_toce)%laction ) CALL cpl_snd( jps_toce, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2155	IF( ssnd(jps_tice)%laction ) CALL cpl_snd( jps_tice, isec, ztmp3, info )
2156	IF( ssnd(jps_tmix)%laction ) CALL cpl_snd( jps_tmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2157	ENDIF
2158	!
2159	! ! ------------------------- !
2160	! ! 1st layer ice/snow temp. !
2161	! ! ------------------------- !
2162	#if defined key_si3
2163	! needed by Met Office
2164	IF( ssnd(jps_ttilyr)%laction) THEN
2165	SELECT CASE( sn_snd_ttilyr%cldes)
2166	CASE ('weighted ice')
2167	ztmp3(:,:,1:jpl) = t1_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2168	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ttilyr%cldes' )
2169	END SELECT
2170	IF( ssnd(jps_ttilyr)%laction ) CALL cpl_snd( jps_ttilyr, isec, ztmp3, info )
2171	ENDIF
2172	#endif
2173	! ! ------------------------- !
2174	! ! Albedo !
2175	! ! ------------------------- !
2176	IF( ssnd(jps_albice)%laction ) THEN ! ice
2177	SELECT CASE( sn_snd_alb%cldes )
2178	CASE( 'ice' )
2179	SELECT CASE( sn_snd_alb%clcat )
2180	CASE( 'yes' )
2181	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl)
2182	CASE( 'no' )
2183	WHERE( SUM( a_i, dim=3 ) /= 0. )
2184	ztmp1(:,:) = SUM( alb_ice (:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 ) / SUM( a_i(:,:,1:jpl), dim=3 )
2185	ELSEWHERE
2186	ztmp1(:,:) = alb_oce_mix(:,:)
2187	END WHERE
2188	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%clcat' )
2189	END SELECT
2190	CASE( 'weighted ice' ) ;
2191	SELECT CASE( sn_snd_alb%clcat )
2192	CASE( 'yes' )
2193	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2194	CASE( 'no' )
2195	WHERE( fr_i (:,:) > 0. )
2196	ztmp1(:,:) = SUM ( alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 )
2197	ELSEWHERE
2198	ztmp1(:,:) = 0.
2199	END WHERE
2200	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ice%clcat' )
2201	END SELECT
2202	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%cldes' )
2203	END SELECT
2204
2205	SELECT CASE( sn_snd_alb%clcat )
2206	CASE( 'yes' )
2207	CALL cpl_snd( jps_albice, isec, ztmp3, info ) !-> MV this has never been checked in coupled mode
2208	CASE( 'no' )
2209	CALL cpl_snd( jps_albice, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2210	END SELECT
2211	ENDIF
2212
2213	IF( ssnd(jps_albmix)%laction ) THEN ! mixed ice-ocean
2214	ztmp1(:,:) = alb_oce_mix(:,:) * zfr_l(:,:)
2215	DO jl = 1, jpl
2216	ztmp1(:,:) = ztmp1(:,:) + alb_ice(:,:,jl) * a_i(:,:,jl)
2217	END DO
2218	CALL cpl_snd( jps_albmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2219	ENDIF
2220	! ! ------------------------- !
2221	! ! Ice fraction & Thickness !
2222	! ! ------------------------- !
2223	! Send ice fraction field to atmosphere
2224	IF( ssnd(jps_fice)%laction ) THEN
2225	SELECT CASE( sn_snd_thick%clcat )
2226	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2227	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2228	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2229	END SELECT
2230	CALL cpl_snd( jps_fice, isec, ztmp3, info )
2231	ENDIF
2232
2233	IF( ssnd(jps_fice1)%laction ) THEN
2234	SELECT CASE( sn_snd_thick1%clcat )
2235	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2236	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2237	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick1%clcat' )
2238	END SELECT
2239	CALL cpl_snd( jps_fice1, isec, ztmp3, info )
2240	ENDIF
2241
2242	! Send ice fraction field to OPA (sent by SAS in SAS-OPA coupling)
2243	IF( ssnd(jps_fice2)%laction ) THEN
2244	ztmp3(:,:,1) = fr_i(:,:)
2245	IF( ssnd(jps_fice2)%laction ) CALL cpl_snd( jps_fice2, isec, ztmp3, info )
2246	ENDIF
2247
2248	! Send ice and snow thickness field
2249	IF( ssnd(jps_hice)%laction .OR. ssnd(jps_hsnw)%laction ) THEN
2250	SELECT CASE( sn_snd_thick%cldes)
2251	CASE( 'none' ) ! nothing to do
2252	CASE( 'weighted ice and snow' )
2253	SELECT CASE( sn_snd_thick%clcat )
2254	CASE( 'yes' )
2255	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl) * a_i(:,:,1:jpl)
2256	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl) * a_i(:,:,1:jpl)
2257	CASE( 'no' )
2258	ztmp3(:,:,:) = 0.0 ; ztmp4(:,:,:) = 0.0
2259	DO jl=1,jpl
2260	ztmp3(:,:,1) = ztmp3(:,:,1) + h_i(:,:,jl) * a_i(:,:,jl)
2261	ztmp4(:,:,1) = ztmp4(:,:,1) + h_s(:,:,jl) * a_i(:,:,jl)
2262	ENDDO
2263	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2264	END SELECT
2265	CASE( 'ice and snow' )
2266	SELECT CASE( sn_snd_thick%clcat )
2267	CASE( 'yes' )
2268	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl)
2269	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl)
2270	CASE( 'no' )
2271	WHERE( SUM( a_i, dim=3 ) /= 0. )
2272	ztmp3(:,:,1) = SUM( h_i * a_i, dim=3 ) / SUM( a_i, dim=3 )
2273	ztmp4(:,:,1) = SUM( h_s * a_i, dim=3 ) / SUM( a_i, dim=3 )
2274	ELSEWHERE
2275	ztmp3(:,:,1) = 0.
2276	ztmp4(:,:,1) = 0.
2277	END WHERE
2278	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2279	END SELECT
2280	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%cldes' )
2281	END SELECT
2282	IF( ssnd(jps_hice)%laction ) CALL cpl_snd( jps_hice, isec, ztmp3, info )
2283	IF( ssnd(jps_hsnw)%laction ) CALL cpl_snd( jps_hsnw, isec, ztmp4, info )
2284	ENDIF
2285
2286	#if defined key_si3
2287	! ! ------------------------- !
2288	! ! Ice melt ponds !
2289	! ! ------------------------- !
2290	! needed by Met Office: 1) fraction of ponded ice 2) local/actual pond depth
2291	IF( ssnd(jps_a_p)%laction .OR. ssnd(jps_ht_p)%laction ) THEN
2292	SELECT CASE( sn_snd_mpnd%cldes)
2293	CASE( 'ice only' )
2294	SELECT CASE( sn_snd_mpnd%clcat )
2295	CASE( 'yes' )
2296	ztmp3(:,:,1:jpl) = a_ip_frac(:,:,1:jpl)
2297	ztmp4(:,:,1:jpl) = h_ip(:,:,1:jpl)
2298	CASE( 'no' )
2299	ztmp3(:,:,:) = 0.0
2300	ztmp4(:,:,:) = 0.0
2301	DO jl=1,jpl
2302	ztmp3(:,:,1) = ztmp3(:,:,1) + a_ip_frac(:,:,jpl)
2303	ztmp4(:,:,1) = ztmp4(:,:,1) + h_ip(:,:,jpl)
2304	ENDDO
2305	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%clcat' )
2306	END SELECT
2307	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%cldes' )
2308	END SELECT
2309	IF( ssnd(jps_a_p)%laction ) CALL cpl_snd( jps_a_p , isec, ztmp3, info )
2310	IF( ssnd(jps_ht_p)%laction ) CALL cpl_snd( jps_ht_p, isec, ztmp4, info )
2311	ENDIF
2312	!
2313	! ! ------------------------- !
2314	! ! Ice conductivity !
2315	! ! ------------------------- !
2316	! needed by Met Office
2317	IF( ssnd(jps_kice)%laction ) THEN
2318	SELECT CASE( sn_snd_cond%cldes)
2319	CASE( 'weighted ice' )
2320	SELECT CASE( sn_snd_cond%clcat )
2321	CASE( 'yes' )
2322	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2323	CASE( 'no' )
2324	ztmp3(:,:,:) = 0.0
2325	DO jl=1,jpl
2326	ztmp3(:,:,1) = ztmp3(:,:,1) + cnd_ice(:,:,jl) * a_i(:,:,jl)
2327	ENDDO
2328	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%clcat' )
2329	END SELECT
2330	CASE( 'ice only' )
2331	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl)
2332	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%cldes' )
2333	END SELECT
2334	IF( ssnd(jps_kice)%laction ) CALL cpl_snd( jps_kice, isec, ztmp3, info )
2335	ENDIF
2336	#endif
2337
2338	! ! ------------------------- !
2339	! ! CO2 flux from PISCES !
2340	! ! ------------------------- !
2341	IF( ssnd(jps_co2)%laction .AND. l_co2cpl ) THEN
2342	ztmp1(:,:) = oce_co2(:,:) * 1000. ! conversion in molC/m2/s
2343	CALL cpl_snd( jps_co2, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ) , info )
2344	ENDIF
2345	!
2346	! ! ------------------------- !
2347	IF( ssnd(jps_ocx1)%laction ) THEN ! Surface current !
2348	! ! ------------------------- !
2349	!
2350	! j+1 j -----V---F
2351	! surface velocity always sent from T point ! \|
2352	! j \| T U
2353	! \| \|
2354	! j j-1 -I-------\|
2355	! (for I) \| \|
2356	! i-1 i i
2357	! i i+1 (for I)
2358	IF( nn_components == jp_iam_opa ) THEN
2359	zotx1(:,:) = un(:,:,1)
2360	zoty1(:,:) = vn(:,:,1)
2361	ELSE
2362	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
2363	CASE( 'oce only' ) ! C-grid ==> T
2364	DO jj = 2, jpjm1
2365	DO ji = fs_2, fs_jpim1 ! vector opt.
2366	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
2367	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) )
2368	END DO
2369	END DO
2370	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2371	DO jj = 2, jpjm1
2372	DO ji = fs_2, fs_jpim1 ! vector opt.
2373	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
2374	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
2375	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2376	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2377	END DO
2378	END DO
2379	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1., zity1, 'T', -1. )
2380	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2381	DO jj = 2, jpjm1
2382	DO ji = fs_2, fs_jpim1 ! vector opt.
2383	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
2384	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2385	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
2386	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2387	END DO
2388	END DO
2389	END SELECT
2390	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocx1)%clgrid, -1., zoty1, ssnd(jps_ocy1)%clgrid, -1. )
2391	!
2392	ENDIF
2393	!
2394	!
2395	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2396	! ! Ocean component
2397	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2398	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2399	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2400	zoty1(:,:) = ztmp2(:,:)
2401	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2402	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2403	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2404	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2405	zity1(:,:) = ztmp2(:,:)
2406	ENDIF
2407	ENDIF
2408	!
2409	! spherical coordinates to cartesian -> 2 components to 3 components
2410	IF( TRIM( sn_snd_crt%clvref ) == 'cartesian' ) THEN
2411	ztmp1(:,:) = zotx1(:,:) ! ocean currents
2412	ztmp2(:,:) = zoty1(:,:)
2413	CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2414	!
2415	IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2416	ztmp1(:,:) = zitx1(:,:)
2417	ztmp1(:,:) = zity1(:,:)
2418	CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2419	ENDIF
2420	ENDIF
2421	!
2422	IF( ssnd(jps_ocx1)%laction ) CALL cpl_snd( jps_ocx1, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2423	IF( ssnd(jps_ocy1)%laction ) CALL cpl_snd( jps_ocy1, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2424	IF( ssnd(jps_ocz1)%laction ) CALL cpl_snd( jps_ocz1, isec, RESHAPE ( zotz1, (/jpi,jpj,1/) ), info ) ! ocean z current 1st grid
2425	!
2426	IF( ssnd(jps_ivx1)%laction ) CALL cpl_snd( jps_ivx1, isec, RESHAPE ( zitx1, (/jpi,jpj,1/) ), info ) ! ice x current 1st grid
2427	IF( ssnd(jps_ivy1)%laction ) CALL cpl_snd( jps_ivy1, isec, RESHAPE ( zity1, (/jpi,jpj,1/) ), info ) ! ice y current 1st grid
2428	IF( ssnd(jps_ivz1)%laction ) CALL cpl_snd( jps_ivz1, isec, RESHAPE ( zitz1, (/jpi,jpj,1/) ), info ) ! ice z current 1st grid
2429	!
2430	ENDIF
2431	!
2432	! ! ------------------------- !
2433	! ! Surface current to waves !
2434	! ! ------------------------- !
2435	IF( ssnd(jps_ocxw)%laction .OR. ssnd(jps_ocyw)%laction ) THEN
2436	!
2437	! j+1 j -----V---F
2438	! surface velocity always sent from T point ! \|
2439	! j \| T U
2440	! \| \|
2441	! j j-1 -I-------\|
2442	! (for I) \| \|
2443	! i-1 i i
2444	! i i+1 (for I)
2445	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
2446	CASE( 'oce only' ) ! C-grid ==> T
2447	DO jj = 2, jpjm1
2448	DO ji = fs_2, fs_jpim1 ! vector opt.
2449	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
2450	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji , jj-1,1) )
2451	END DO
2452	END DO
2453	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2454	DO jj = 2, jpjm1
2455	DO ji = fs_2, fs_jpim1 ! vector opt.
2456	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
2457	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
2458	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2459	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2460	END DO
2461	END DO
2462	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1., zity1, 'T', -1. )
2463	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2464	DO jj = 2, jpjm1
2465	DO ji = fs_2, fs_jpim1 ! vector opt.
2466	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
2467	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2468	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
2469	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2470	END DO
2471	END DO
2472	END SELECT
2473	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocxw)%clgrid, -1., zoty1, ssnd(jps_ocyw)%clgrid, -1. )
2474	!
2475	!
2476	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2477	! ! Ocean component
2478	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2479	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2480	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2481	zoty1(:,:) = ztmp2(:,:)
2482	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2483	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2484	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2485	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2486	zity1(:,:) = ztmp2(:,:)
2487	ENDIF
2488	ENDIF
2489	!
2490	! ! spherical coordinates to cartesian -> 2 components to 3 components
2491	! IF( TRIM( sn_snd_crtw%clvref ) == 'cartesian' ) THEN
2492	! ztmp1(:,:) = zotx1(:,:) ! ocean currents
2493	! ztmp2(:,:) = zoty1(:,:)
2494	! CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2495	! !
2496	! IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2497	! ztmp1(:,:) = zitx1(:,:)
2498	! ztmp1(:,:) = zity1(:,:)
2499	! CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2500	! ENDIF
2501	! ENDIF
2502	!
2503	IF( ssnd(jps_ocxw)%laction ) CALL cpl_snd( jps_ocxw, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2504	IF( ssnd(jps_ocyw)%laction ) CALL cpl_snd( jps_ocyw, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2505	!
2506	ENDIF
2507	!
2508	IF( ssnd(jps_ficet)%laction ) THEN
2509	CALL cpl_snd( jps_ficet, isec, RESHAPE ( fr_i, (/jpi,jpj,1/) ), info )
2510	END IF
2511	! ! ------------------------- !
2512	! ! Water levels to waves !
2513	! ! ------------------------- !
2514	IF( ssnd(jps_wlev)%laction ) THEN
2515	IF( ln_apr_dyn ) THEN
2516	IF( kt /= nit000 ) THEN
2517	ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2518	ELSE
2519	ztmp1(:,:) = sshb(:,:)
2520	ENDIF
2521	ELSE
2522	ztmp1(:,:) = sshn(:,:)
2523	ENDIF
2524	CALL cpl_snd( jps_wlev , isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2525	END IF
2526	!
2527	! Fields sent by OPA to SAS when doing OPA<->SAS coupling
2528	! ! SSH
2529	IF( ssnd(jps_ssh )%laction ) THEN
2530	! ! removed inverse barometer ssh when Patm
2531	! forcing is used (for sea-ice dynamics)
2532	IF( ln_apr_dyn ) THEN ; ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2533	ELSE ; ztmp1(:,:) = sshn(:,:)
2534	ENDIF
2535	CALL cpl_snd( jps_ssh , isec, RESHAPE ( ztmp1 , (/jpi,jpj,1/) ), info )
2536
2537	ENDIF
2538	! ! SSS
2539	IF( ssnd(jps_soce )%laction ) THEN
2540	CALL cpl_snd( jps_soce , isec, RESHAPE ( tsn(:,:,1,jp_sal), (/jpi,jpj,1/) ), info )
2541	ENDIF
2542	! ! first T level thickness
2543	IF( ssnd(jps_e3t1st )%laction ) THEN
2544	CALL cpl_snd( jps_e3t1st, isec, RESHAPE ( e3t_n(:,:,1) , (/jpi,jpj,1/) ), info )
2545	ENDIF
2546	! ! Qsr fraction
2547	IF( ssnd(jps_fraqsr)%laction ) THEN
2548	CALL cpl_snd( jps_fraqsr, isec, RESHAPE ( fraqsr_1lev(:,:) , (/jpi,jpj,1/) ), info )
2549	ENDIF
2550	!
2551	! Fields sent by SAS to OPA when OASIS coupling
2552	! ! Solar heat flux
2553	IF( ssnd(jps_qsroce)%laction ) CALL cpl_snd( jps_qsroce, isec, RESHAPE ( qsr , (/jpi,jpj,1/) ), info )
2554	IF( ssnd(jps_qnsoce)%laction ) CALL cpl_snd( jps_qnsoce, isec, RESHAPE ( qns , (/jpi,jpj,1/) ), info )
2555	IF( ssnd(jps_oemp )%laction ) CALL cpl_snd( jps_oemp , isec, RESHAPE ( emp , (/jpi,jpj,1/) ), info )
2556	IF( ssnd(jps_sflx )%laction ) CALL cpl_snd( jps_sflx , isec, RESHAPE ( sfx , (/jpi,jpj,1/) ), info )
2557	IF( ssnd(jps_otx1 )%laction ) CALL cpl_snd( jps_otx1 , isec, RESHAPE ( utau, (/jpi,jpj,1/) ), info )
2558	IF( ssnd(jps_oty1 )%laction ) CALL cpl_snd( jps_oty1 , isec, RESHAPE ( vtau, (/jpi,jpj,1/) ), info )
2559	IF( ssnd(jps_rnf )%laction ) CALL cpl_snd( jps_rnf , isec, RESHAPE ( rnf , (/jpi,jpj,1/) ), info )
2560	IF( ssnd(jps_taum )%laction ) CALL cpl_snd( jps_taum , isec, RESHAPE ( taum, (/jpi,jpj,1/) ), info )
2561
2562	#if defined key_si3
2563	! ! ------------------------- !
2564	! ! Sea surface freezing temp !
2565	! ! ------------------------- !
2566	! needed by Met Office
2567	CALL eos_fzp(tsn(:,:,1,jp_sal), sstfrz)
2568	ztmp1(:,:) = sstfrz(:,:) + rt0
2569	IF( ssnd(jps_sstfrz)%laction ) CALL cpl_snd( jps_sstfrz, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info)
2570	#endif
2571	!
2572	END SUBROUTINE sbc_cpl_snd
2573
2574	!!======================================================================
2575	END MODULE sbccpl

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