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sbccpl.F90 in NEMO/branches/2020/dev_r13648_ASINTER-04_laurent_bulk_ice/src/OCE/SBC – NEMO

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source: NEMO/branches/2020/dev_r13648_ASINTER-04_laurent_bulk_ice/src/OCE/SBC/sbccpl.F90 @ 14021

Last change on this file since 14021 was 14021, checked in by laurent, 3 years ago
Caught up with trunk rev 14020...
Property svn:keywords set to `Id`
File size: 163.3 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	!! 4.2 ! 2020-12 (G. Madec, E. Clementi) wave coupling updates
11	!!----------------------------------------------------------------------
12
13	!!----------------------------------------------------------------------
14	!! namsbc_cpl : coupled formulation namlist
15	!! sbc_cpl_init : initialisation of the coupled exchanges
16	!! sbc_cpl_rcv : receive fields from the atmosphere over the ocean (ocean only)
17	!! receive stress from the atmosphere over the ocean (ocean-ice case)
18	!! sbc_cpl_ice_tau : receive stress from the atmosphere over ice
19	!! sbc_cpl_ice_flx : receive fluxes from the atmosphere over ice
20	!! sbc_cpl_snd : send fields to the atmosphere
21	!!----------------------------------------------------------------------
22	USE dom_oce ! ocean space and time domain
23	USE sbc_oce ! Surface boundary condition: ocean fields
24	USE trc_oce ! share SMS/Ocean variables
25	USE sbc_ice ! Surface boundary condition: ice fields
26	USE sbcapr ! Stochastic param. : ???
27	USE sbcdcy ! surface boundary condition: diurnal cycle
28	USE sbcwave ! surface boundary condition: waves
29	USE phycst ! physical constants
30	USE isf_oce , ONLY : l_isfoasis, fwfisf_oasis ! ice shelf boundary condition
31	#if defined key_si3
32	USE ice ! ice variables
33	#endif
34	USE cpl_oasis3 ! OASIS3 coupling
35	USE geo2ocean !
36	USE oce , ONLY : ts, uu, vv, ssh, fraqsr_1lev
37	USE ocealb !
38	USE eosbn2 !
39	USE sbcrnf , ONLY : l_rnfcpl
40	#if defined key_cice
41	USE ice_domain_size, only: ncat
42	#endif
43	#if defined key_si3
44	USE icevar ! for CALL ice_var_snwblow
45	#endif
46	!
47	USE in_out_manager ! I/O manager
48	USE iom ! NetCDF library
49	USE lib_mpp ! distribued memory computing library
50	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
51
52	#if defined key_oasis3
53	USE mod_oasis, ONLY : OASIS_Sent, OASIS_ToRest, OASIS_SentOut, OASIS_ToRestOut
54	#endif
55
56	USE sbc_phy, ONLY : pp_cldf
57
58	IMPLICIT NONE
59	PRIVATE
60
61	PUBLIC sbc_cpl_init ! routine called by sbcmod.F90
62	PUBLIC sbc_cpl_rcv ! routine called by icestp.F90
63	PUBLIC sbc_cpl_snd ! routine called by step.F90
64	PUBLIC sbc_cpl_ice_tau ! routine called by icestp.F90
65	PUBLIC sbc_cpl_ice_flx ! routine called by icestp.F90
66	PUBLIC sbc_cpl_alloc ! routine called in sbcice_cice.F90
67
68	INTEGER, PARAMETER :: jpr_otx1 = 1 ! 3 atmosphere-ocean stress components on grid 1
69	INTEGER, PARAMETER :: jpr_oty1 = 2 !
70	INTEGER, PARAMETER :: jpr_otz1 = 3 !
71	INTEGER, PARAMETER :: jpr_otx2 = 4 ! 3 atmosphere-ocean stress components on grid 2
72	INTEGER, PARAMETER :: jpr_oty2 = 5 !
73	INTEGER, PARAMETER :: jpr_otz2 = 6 !
74	INTEGER, PARAMETER :: jpr_itx1 = 7 ! 3 atmosphere-ice stress components on grid 1
75	INTEGER, PARAMETER :: jpr_ity1 = 8 !
76	INTEGER, PARAMETER :: jpr_itz1 = 9 !
77	INTEGER, PARAMETER :: jpr_itx2 = 10 ! 3 atmosphere-ice stress components on grid 2
78	INTEGER, PARAMETER :: jpr_ity2 = 11 !
79	INTEGER, PARAMETER :: jpr_itz2 = 12 !
80	INTEGER, PARAMETER :: jpr_qsroce = 13 ! Qsr above the ocean
81	INTEGER, PARAMETER :: jpr_qsrice = 14 ! Qsr above the ice
82	INTEGER, PARAMETER :: jpr_qsrmix = 15
83	INTEGER, PARAMETER :: jpr_qnsoce = 16 ! Qns above the ocean
84	INTEGER, PARAMETER :: jpr_qnsice = 17 ! Qns above the ice
85	INTEGER, PARAMETER :: jpr_qnsmix = 18
86	INTEGER, PARAMETER :: jpr_rain = 19 ! total liquid precipitation (rain)
87	INTEGER, PARAMETER :: jpr_snow = 20 ! solid precipitation over the ocean (snow)
88	INTEGER, PARAMETER :: jpr_tevp = 21 ! total evaporation
89	INTEGER, PARAMETER :: jpr_ievp = 22 ! solid evaporation (sublimation)
90	INTEGER, PARAMETER :: jpr_sbpr = 23 ! sublimation - liquid precipitation - solid precipitation
91	INTEGER, PARAMETER :: jpr_semp = 24 ! solid freshwater budget (sublimation - snow)
92	INTEGER, PARAMETER :: jpr_oemp = 25 ! ocean freshwater budget (evap - precip)
93	INTEGER, PARAMETER :: jpr_w10m = 26 ! 10m wind
94	INTEGER, PARAMETER :: jpr_dqnsdt = 27 ! d(Q non solar)/d(temperature)
95	INTEGER, PARAMETER :: jpr_rnf = 28 ! runoffs
96	INTEGER, PARAMETER :: jpr_cal = 29 ! calving
97	INTEGER, PARAMETER :: jpr_taum = 30 ! wind stress module
98	INTEGER, PARAMETER :: jpr_co2 = 31
99	INTEGER, PARAMETER :: jpr_topm = 32 ! topmeltn
100	INTEGER, PARAMETER :: jpr_botm = 33 ! botmeltn
101	INTEGER, PARAMETER :: jpr_sflx = 34 ! salt flux
102	INTEGER, PARAMETER :: jpr_toce = 35 ! ocean temperature
103	INTEGER, PARAMETER :: jpr_soce = 36 ! ocean salinity
104	INTEGER, PARAMETER :: jpr_ocx1 = 37 ! ocean current on grid 1
105	INTEGER, PARAMETER :: jpr_ocy1 = 38 !
106	INTEGER, PARAMETER :: jpr_ssh = 39 ! sea surface height
107	INTEGER, PARAMETER :: jpr_fice = 40 ! ice fraction
108	INTEGER, PARAMETER :: jpr_e3t1st = 41 ! first T level thickness
109	INTEGER, PARAMETER :: jpr_fraqsr = 42 ! fraction of solar net radiation absorbed in the first ocean level
110	INTEGER, PARAMETER :: jpr_mslp = 43 ! mean sea level pressure
111	! surface wave coupling
112	INTEGER, PARAMETER :: jpr_hsig = 44 ! Hsig
113	INTEGER, PARAMETER :: jpr_phioc = 45 ! Wave=>ocean energy flux
114	INTEGER, PARAMETER :: jpr_sdrftx = 46 ! Stokes drift on grid 1
115	INTEGER, PARAMETER :: jpr_sdrfty = 47 ! Stokes drift on grid 2
116	INTEGER, PARAMETER :: jpr_wper = 48 ! Mean wave period
117	INTEGER, PARAMETER :: jpr_wnum = 49 ! Mean wavenumber
118	INTEGER, PARAMETER :: jpr_wstrf = 50 ! Stress fraction adsorbed by waves
119	INTEGER, PARAMETER :: jpr_wdrag = 51 ! Neutral surface drag coefficient
120	INTEGER, PARAMETER :: jpr_charn = 52 ! Chranock coefficient
121	INTEGER, PARAMETER :: jpr_twox = 53 ! wave to ocean momentum flux
122	INTEGER, PARAMETER :: jpr_twoy = 54 ! wave to ocean momentum flux
123	INTEGER, PARAMETER :: jpr_tawx = 55 ! net wave-supported stress
124	INTEGER, PARAMETER :: jpr_tawy = 56 ! net wave-supported stress
125	INTEGER, PARAMETER :: jpr_bhd = 57 ! Bernoulli head. waves' induced surface pressure
126	INTEGER, PARAMETER :: jpr_tusd = 58 ! zonal stokes transport
127	INTEGER, PARAMETER :: jpr_tvsd = 59 ! meridional stokes tranmport
128	INTEGER, PARAMETER :: jpr_isf = 60
129	INTEGER, PARAMETER :: jpr_icb = 61
130	INTEGER, PARAMETER :: jpr_ts_ice = 62 ! Sea ice surface temp
131
132	INTEGER, PARAMETER :: jprcv = 62 ! total number of fields received
133
134	INTEGER, PARAMETER :: jps_fice = 1 ! ice fraction sent to the atmosphere
135	INTEGER, PARAMETER :: jps_toce = 2 ! ocean temperature
136	INTEGER, PARAMETER :: jps_tice = 3 ! ice temperature
137	INTEGER, PARAMETER :: jps_tmix = 4 ! mixed temperature (ocean+ice)
138	INTEGER, PARAMETER :: jps_albice = 5 ! ice albedo
139	INTEGER, PARAMETER :: jps_albmix = 6 ! mixed albedo
140	INTEGER, PARAMETER :: jps_hice = 7 ! ice thickness
141	INTEGER, PARAMETER :: jps_hsnw = 8 ! snow thickness
142	INTEGER, PARAMETER :: jps_ocx1 = 9 ! ocean current on grid 1
143	INTEGER, PARAMETER :: jps_ocy1 = 10 !
144	INTEGER, PARAMETER :: jps_ocz1 = 11 !
145	INTEGER, PARAMETER :: jps_ivx1 = 12 ! ice current on grid 1
146	INTEGER, PARAMETER :: jps_ivy1 = 13 !
147	INTEGER, PARAMETER :: jps_ivz1 = 14 !
148	INTEGER, PARAMETER :: jps_co2 = 15
149	INTEGER, PARAMETER :: jps_soce = 16 ! ocean salinity
150	INTEGER, PARAMETER :: jps_ssh = 17 ! sea surface height
151	INTEGER, PARAMETER :: jps_qsroce = 18 ! Qsr above the ocean
152	INTEGER, PARAMETER :: jps_qnsoce = 19 ! Qns above the ocean
153	INTEGER, PARAMETER :: jps_oemp = 20 ! ocean freshwater budget (evap - precip)
154	INTEGER, PARAMETER :: jps_sflx = 21 ! salt flux
155	INTEGER, PARAMETER :: jps_otx1 = 22 ! 2 atmosphere-ocean stress components on grid 1
156	INTEGER, PARAMETER :: jps_oty1 = 23 !
157	INTEGER, PARAMETER :: jps_rnf = 24 ! runoffs
158	INTEGER, PARAMETER :: jps_taum = 25 ! wind stress module
159	INTEGER, PARAMETER :: jps_fice2 = 26 ! ice fraction sent to OPA (by SAS when doing SAS-OPA coupling)
160	INTEGER, PARAMETER :: jps_e3t1st = 27 ! first level depth (vvl)
161	INTEGER, PARAMETER :: jps_fraqsr = 28 ! fraction of solar net radiation absorbed in the first ocean level
162	INTEGER, PARAMETER :: jps_ficet = 29 ! total ice fraction
163	INTEGER, PARAMETER :: jps_ocxw = 30 ! currents on grid 1
164	INTEGER, PARAMETER :: jps_ocyw = 31 ! currents on grid 2
165	INTEGER, PARAMETER :: jps_wlev = 32 ! water level
166	INTEGER, PARAMETER :: jps_fice1 = 33 ! first-order ice concentration (for semi-implicit coupling of atmos-ice fluxes)
167	INTEGER, PARAMETER :: jps_a_p = 34 ! meltpond area fraction
168	INTEGER, PARAMETER :: jps_ht_p = 35 ! meltpond thickness
169	INTEGER, PARAMETER :: jps_kice = 36 ! sea ice effective conductivity
170	INTEGER, PARAMETER :: jps_sstfrz = 37 ! sea surface freezing temperature
171	INTEGER, PARAMETER :: jps_ttilyr = 38 ! sea ice top layer temp
172
173	INTEGER, PARAMETER :: jpsnd = 38 ! total number of fields sent
174
175	#if ! defined key_oasis3
176	! Dummy variables to enable compilation when oasis3 is not being used
177	INTEGER :: OASIS_Sent = -1
178	INTEGER :: OASIS_SentOut = -1
179	INTEGER :: OASIS_ToRest = -1
180	INTEGER :: OASIS_ToRestOut = -1
181	#endif
182
183	! !! namelist namsbc_cpl
184	TYPE :: FLD_C !
185	CHARACTER(len = 32) :: cldes ! desciption of the coupling strategy
186	CHARACTER(len = 32) :: clcat ! multiple ice categories strategy
187	CHARACTER(len = 32) :: clvref ! reference of vector ('spherical' or 'cartesian')
188	CHARACTER(len = 32) :: clvor ! orientation of vector fields ('eastward-northward' or 'local grid')
189	CHARACTER(len = 32) :: clvgrd ! grids on which is located the vector fields
190	END TYPE FLD_C
191	! ! Send to the atmosphere
192	TYPE(FLD_C) :: sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2, &
193	& sn_snd_thick1, sn_snd_cond, sn_snd_mpnd , sn_snd_sstfrz, sn_snd_ttilyr
194	! ! Received from the atmosphere
195	TYPE(FLD_C) :: sn_rcv_w10m, sn_rcv_taumod, sn_rcv_tau, sn_rcv_dqnsdt, sn_rcv_qsr, &
196	& sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf, sn_rcv_ts_ice
197	TYPE(FLD_C) :: sn_rcv_cal, sn_rcv_iceflx, sn_rcv_co2, sn_rcv_mslp, sn_rcv_icb, sn_rcv_isf
198	! ! Send to waves
199	TYPE(FLD_C) :: sn_snd_ifrac, sn_snd_crtw, sn_snd_wlev
200	! ! Received from waves
201	TYPE(FLD_C) :: sn_rcv_hsig, sn_rcv_phioc, sn_rcv_sdrfx, sn_rcv_sdrfy, sn_rcv_wper, sn_rcv_wnum, &
202	& sn_rcv_wstrf, sn_rcv_wdrag, sn_rcv_charn, sn_rcv_taw, sn_rcv_bhd, sn_rcv_tusd, sn_rcv_tvsd
203	! ! Other namelist parameters
204	INTEGER :: nn_cplmodel ! Maximum number of models to/from which NEMO is potentialy sending/receiving data
205	LOGICAL :: ln_usecplmask ! use a coupling mask file to merge data received from several models
206	! -> file cplmask.nc with the float variable called cplmask (jpi,jpj,nn_cplmodel)
207	LOGICAL :: ln_scale_ice_flux ! use ice fluxes that are already "ice weighted" ( i.e. multiplied ice concentration)
208
209	TYPE :: DYNARR
210	REAL(wp), POINTER, DIMENSION(:,:,:) :: z3
211	END TYPE DYNARR
212
213	TYPE( DYNARR ), SAVE, DIMENSION(jprcv) :: frcv ! all fields recieved from the atmosphere
214
215	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: alb_oce_mix ! ocean albedo sent to atmosphere (mix clear/overcast sky)
216	#if defined key_si3 \|\| defined key_cice
217	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i_last_couple !: Ice fractional area at last coupling time
218	#endif
219
220	REAL(wp) :: rpref = 101000._wp ! reference atmospheric pressure[N/m2]
221	REAL(wp) :: r1_grau ! = 1.e0 / (grav * rho0)
222
223	INTEGER , ALLOCATABLE, SAVE, DIMENSION(:) :: nrcvinfo ! OASIS info argument
224
225	!! Substitution
226	# include "do_loop_substitute.h90"
227	# include "domzgr_substitute.h90"
228	!!----------------------------------------------------------------------
229	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
230	!! $Id$
231	!! Software governed by the CeCILL license (see ./LICENSE)
232	!!----------------------------------------------------------------------
233	CONTAINS
234
235	INTEGER FUNCTION sbc_cpl_alloc()
236	!!----------------------------------------------------------------------
237	!! * FUNCTION sbc_cpl_alloc *
238	!!----------------------------------------------------------------------
239	INTEGER :: ierr(5)
240	!!----------------------------------------------------------------------
241	ierr(:) = 0
242	!
243	ALLOCATE( alb_oce_mix(jpi,jpj), nrcvinfo(jprcv), STAT=ierr(1) )
244
245	#if ! defined key_si3 && ! defined key_cice
246	ALLOCATE( a_i(jpi,jpj,1) , STAT=ierr(2) ) ! used in sbcice_if.F90 (done here as there is no sbc_ice_if_init)
247	#endif
248	ALLOCATE( xcplmask(jpi,jpj,0:nn_cplmodel) , STAT=ierr(3) )
249	#if defined key_si3 \|\| defined key_cice
250	ALLOCATE( a_i_last_couple(jpi,jpj,jpl) , STAT=ierr(4) )
251	#endif
252	!
253	IF( .NOT. ln_apr_dyn ) ALLOCATE( ssh_ib(jpi,jpj), ssh_ibb(jpi,jpj), apr(jpi, jpj), STAT=ierr(5) )
254
255	sbc_cpl_alloc = MAXVAL( ierr )
256	CALL mpp_sum ( 'sbccpl', sbc_cpl_alloc )
257	IF( sbc_cpl_alloc > 0 ) CALL ctl_warn('sbc_cpl_alloc: allocation of arrays failed')
258	!
259	END FUNCTION sbc_cpl_alloc
260
261
262	SUBROUTINE sbc_cpl_init( k_ice )
263	!!----------------------------------------------------------------------
264	!! * ROUTINE sbc_cpl_init *
265	!!
266	!! ** Purpose : Initialisation of send and received information from
267	!! the atmospheric component
268	!!
269	!! ** Method : * Read namsbc_cpl namelist
270	!! * define the receive interface
271	!! * define the send interface
272	!! * initialise the OASIS coupler
273	!!----------------------------------------------------------------------
274	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
275	!
276	INTEGER :: jn ! dummy loop index
277	INTEGER :: ios, inum ! Local integer
278	REAL(wp), DIMENSION(jpi,jpj) :: zacs, zaos
279	!!
280	NAMELIST/namsbc_cpl/ nn_cplmodel , ln_usecplmask, nn_cats_cpl , ln_scale_ice_flux, &
281	& sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2 , &
282	& sn_snd_ttilyr, sn_snd_cond , sn_snd_mpnd , sn_snd_sstfrz, sn_snd_thick1, &
283	& sn_snd_ifrac , sn_snd_crtw , sn_snd_wlev , sn_rcv_hsig , sn_rcv_phioc , &
284	& sn_rcv_w10m , sn_rcv_taumod, sn_rcv_tau , sn_rcv_dqnsdt, sn_rcv_qsr , &
285	& sn_rcv_sdrfx , sn_rcv_sdrfy , sn_rcv_wper , sn_rcv_wnum , sn_rcv_wstrf , &
286	& sn_rcv_charn , sn_rcv_taw , sn_rcv_bhd , sn_rcv_tusd , sn_rcv_tvsd, &
287	& sn_rcv_wdrag , sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf , sn_rcv_cal , &
288	& sn_rcv_iceflx, sn_rcv_co2 , sn_rcv_icb , sn_rcv_isf , sn_rcv_ts_ice
289
290	!!---------------------------------------------------------------------
291	!
292	! ================================ !
293	! Namelist informations !
294	! ================================ !
295	!
296	READ ( numnam_ref, namsbc_cpl, IOSTAT = ios, ERR = 901)
297	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in reference namelist' )
298	!
299	READ ( numnam_cfg, namsbc_cpl, IOSTAT = ios, ERR = 902 )
300	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in configuration namelist' )
301	IF(lwm) WRITE ( numond, namsbc_cpl )
302	!
303	IF(lwp) THEN ! control print
304	WRITE(numout,*)
305	WRITE(numout,*)'sbc_cpl_init : namsbc_cpl namelist '
306	WRITE(numout,*)'~~~~~~~~~~~~'
307	ENDIF
308	IF( lwp .AND. ln_cpl ) THEN ! control print
309	WRITE(numout,*)' nn_cplmodel = ', nn_cplmodel
310	WRITE(numout,*)' ln_usecplmask = ', ln_usecplmask
311	WRITE(numout,*)' ln_scale_ice_flux = ', ln_scale_ice_flux
312	WRITE(numout,*)' nn_cats_cpl = ', nn_cats_cpl
313	WRITE(numout,*)' received fields (mutiple ice categogies)'
314	WRITE(numout,*)' 10m wind module = ', TRIM(sn_rcv_w10m%cldes ), ' (', TRIM(sn_rcv_w10m%clcat ), ')'
315	WRITE(numout,*)' stress module = ', TRIM(sn_rcv_taumod%cldes), ' (', TRIM(sn_rcv_taumod%clcat), ')'
316	WRITE(numout,*)' surface stress = ', TRIM(sn_rcv_tau%cldes ), ' (', TRIM(sn_rcv_tau%clcat ), ')'
317	WRITE(numout,*)' - referential = ', sn_rcv_tau%clvref
318	WRITE(numout,*)' - orientation = ', sn_rcv_tau%clvor
319	WRITE(numout,*)' - mesh = ', sn_rcv_tau%clvgrd
320	WRITE(numout,*)' non-solar heat flux sensitivity = ', TRIM(sn_rcv_dqnsdt%cldes), ' (', TRIM(sn_rcv_dqnsdt%clcat), ')'
321	WRITE(numout,*)' solar heat flux = ', TRIM(sn_rcv_qsr%cldes ), ' (', TRIM(sn_rcv_qsr%clcat ), ')'
322	WRITE(numout,*)' non-solar heat flux = ', TRIM(sn_rcv_qns%cldes ), ' (', TRIM(sn_rcv_qns%clcat ), ')'
323	WRITE(numout,*)' freshwater budget = ', TRIM(sn_rcv_emp%cldes ), ' (', TRIM(sn_rcv_emp%clcat ), ')'
324	WRITE(numout,*)' runoffs = ', TRIM(sn_rcv_rnf%cldes ), ' (', TRIM(sn_rcv_rnf%clcat ), ')'
325	WRITE(numout,*)' calving = ', TRIM(sn_rcv_cal%cldes ), ' (', TRIM(sn_rcv_cal%clcat ), ')'
326	WRITE(numout,*)' iceberg = ', TRIM(sn_rcv_icb%cldes ), ' (', TRIM(sn_rcv_icb%clcat ), ')'
327	WRITE(numout,*)' ice shelf = ', TRIM(sn_rcv_isf%cldes ), ' (', TRIM(sn_rcv_isf%clcat ), ')'
328	WRITE(numout,*)' sea ice heat fluxes = ', TRIM(sn_rcv_iceflx%cldes), ' (', TRIM(sn_rcv_iceflx%clcat), ')'
329	WRITE(numout,*)' atm co2 = ', TRIM(sn_rcv_co2%cldes ), ' (', TRIM(sn_rcv_co2%clcat ), ')'
330	WRITE(numout,*)' Sea ice surface skin temperature= ', TRIM(sn_rcv_ts_ice%cldes), ' (', TRIM(sn_rcv_ts_ice%clcat), ')'
331	WRITE(numout,*)' surface waves:'
332	WRITE(numout,*)' significant wave heigth = ', TRIM(sn_rcv_hsig%cldes ), ' (', TRIM(sn_rcv_hsig%clcat ), ')'
333	WRITE(numout,*)' wave to oce energy flux = ', TRIM(sn_rcv_phioc%cldes ), ' (', TRIM(sn_rcv_phioc%clcat ), ')'
334	WRITE(numout,*)' Surface Stokes drift grid u = ', TRIM(sn_rcv_sdrfx%cldes ), ' (', TRIM(sn_rcv_sdrfx%clcat ), ')'
335	WRITE(numout,*)' Surface Stokes drift grid v = ', TRIM(sn_rcv_sdrfy%cldes ), ' (', TRIM(sn_rcv_sdrfy%clcat ), ')'
336	WRITE(numout,*)' Mean wave period = ', TRIM(sn_rcv_wper%cldes ), ' (', TRIM(sn_rcv_wper%clcat ), ')'
337	WRITE(numout,*)' Mean wave number = ', TRIM(sn_rcv_wnum%cldes ), ' (', TRIM(sn_rcv_wnum%clcat ), ')'
338	WRITE(numout,*)' Stress frac adsorbed by waves = ', TRIM(sn_rcv_wstrf%cldes ), ' (', TRIM(sn_rcv_wstrf%clcat ), ')'
339	WRITE(numout,*)' Neutral surf drag coefficient = ', TRIM(sn_rcv_wdrag%cldes ), ' (', TRIM(sn_rcv_wdrag%clcat ), ')'
340	WRITE(numout,*)' Charnock coefficient = ', TRIM(sn_rcv_charn%cldes ), ' (', TRIM(sn_rcv_charn%clcat ), ')'
341	WRITE(numout,*)' sent fields (multiple ice categories)'
342	WRITE(numout,*)' surface temperature = ', TRIM(sn_snd_temp%cldes ), ' (', TRIM(sn_snd_temp%clcat ), ')'
343	WRITE(numout,*)' top ice layer temperature = ', TRIM(sn_snd_ttilyr%cldes), ' (', TRIM(sn_snd_ttilyr%clcat), ')'
344	WRITE(numout,*)' albedo = ', TRIM(sn_snd_alb%cldes ), ' (', TRIM(sn_snd_alb%clcat ), ')'
345	WRITE(numout,*)' ice/snow thickness = ', TRIM(sn_snd_thick%cldes ), ' (', TRIM(sn_snd_thick%clcat ), ')'
346	WRITE(numout,*)' total ice fraction = ', TRIM(sn_snd_ifrac%cldes ), ' (', TRIM(sn_snd_ifrac%clcat ), ')'
347	WRITE(numout,*)' surface current = ', TRIM(sn_snd_crt%cldes ), ' (', TRIM(sn_snd_crt%clcat ), ')'
348	WRITE(numout,*)' - referential = ', sn_snd_crt%clvref
349	WRITE(numout,*)' - orientation = ', sn_snd_crt%clvor
350	WRITE(numout,*)' - mesh = ', sn_snd_crt%clvgrd
351	WRITE(numout,*)' oce co2 flux = ', TRIM(sn_snd_co2%cldes ), ' (', TRIM(sn_snd_co2%clcat ), ')'
352	WRITE(numout,*)' ice effective conductivity = ', TRIM(sn_snd_cond%cldes ), ' (', TRIM(sn_snd_cond%clcat ), ')'
353	WRITE(numout,*)' meltponds fraction and depth = ', TRIM(sn_snd_mpnd%cldes ), ' (', TRIM(sn_snd_mpnd%clcat ), ')'
354	WRITE(numout,*)' sea surface freezing temp = ', TRIM(sn_snd_sstfrz%cldes), ' (', TRIM(sn_snd_sstfrz%clcat), ')'
355	WRITE(numout,*)' water level = ', TRIM(sn_snd_wlev%cldes ), ' (', TRIM(sn_snd_wlev%clcat ), ')'
356	WRITE(numout,*)' mean sea level pressure = ', TRIM(sn_rcv_mslp%cldes ), ' (', TRIM(sn_rcv_mslp%clcat ), ')'
357	WRITE(numout,*)' surface current to waves = ', TRIM(sn_snd_crtw%cldes ), ' (', TRIM(sn_snd_crtw%clcat ), ')'
358	WRITE(numout,*)' - referential = ', sn_snd_crtw%clvref
359	WRITE(numout,*)' - orientation = ', sn_snd_crtw%clvor
360	WRITE(numout,*)' - mesh = ', sn_snd_crtw%clvgrd
361	ENDIF
362	IF( lwp .AND. ln_wave) THEN ! control print
363	WRITE(numout,*)' surface waves:'
364	WRITE(numout,*)' Significant wave heigth = ', TRIM(sn_rcv_hsig%cldes ), ' (', TRIM(sn_rcv_hsig%clcat ), ')'
365	WRITE(numout,*)' Wave to oce energy flux = ', TRIM(sn_rcv_phioc%cldes ), ' (', TRIM(sn_rcv_phioc%clcat ), ')'
366	WRITE(numout,*)' Surface Stokes drift grid u = ', TRIM(sn_rcv_sdrfx%cldes ), ' (', TRIM(sn_rcv_sdrfx%clcat ), ')'
367	WRITE(numout,*)' Surface Stokes drift grid v = ', TRIM(sn_rcv_sdrfy%cldes ), ' (', TRIM(sn_rcv_sdrfy%clcat ), ')'
368	WRITE(numout,*)' Mean wave period = ', TRIM(sn_rcv_wper%cldes ), ' (', TRIM(sn_rcv_wper%clcat ), ')'
369	WRITE(numout,*)' Mean wave number = ', TRIM(sn_rcv_wnum%cldes ), ' (', TRIM(sn_rcv_wnum%clcat ), ')'
370	WRITE(numout,*)' Stress frac adsorbed by waves = ', TRIM(sn_rcv_wstrf%cldes ), ' (', TRIM(sn_rcv_wstrf%clcat ), ')'
371	WRITE(numout,*)' Neutral surf drag coefficient = ', TRIM(sn_rcv_wdrag%cldes ), ' (', TRIM(sn_rcv_wdrag%clcat ), ')'
372	WRITE(numout,*)' Charnock coefficient = ', TRIM(sn_rcv_charn%cldes ), ' (', TRIM(sn_rcv_charn%clcat ), ')'
373	WRITE(numout,*)' Transport associated to Stokes drift grid u = ', TRIM(sn_rcv_tusd%cldes ), ' (', TRIM(sn_rcv_tusd%clcat ), ')'
374	WRITE(numout,*)' Transport associated to Stokes drift grid v = ', TRIM(sn_rcv_tvsd%cldes ), ' (', TRIM(sn_rcv_tvsd%clcat ), ')'
375	WRITE(numout,*)' Bernouilli pressure head = ', TRIM(sn_rcv_bhd%cldes ), ' (', TRIM(sn_rcv_bhd%clcat ), ')'
376	WRITE(numout,*)'Wave to ocean momentum flux and Net wave-supported stress = ', TRIM(sn_rcv_taw%cldes ), ' (', TRIM(sn_rcv_taw%clcat ), ')'
377	WRITE(numout,*)' Surface current to waves = ', TRIM(sn_snd_crtw%cldes ), ' (', TRIM(sn_snd_crtw%clcat ), ')'
378	WRITE(numout,*)' - referential = ', sn_snd_crtw%clvref
379	WRITE(numout,*)' - orientation = ', sn_snd_crtw%clvor
380	WRITE(numout,*)' - mesh = ', sn_snd_crtw%clvgrd
381	ENDIF
382	! ! allocate sbccpl arrays
383	IF( sbc_cpl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_cpl_alloc : unable to allocate arrays' )
384
385	! ================================ !
386	! Define the receive interface !
387	! ================================ !
388	nrcvinfo(:) = OASIS_idle ! needed by nrcvinfo(jpr_otx1) if we do not receive ocean stress
389
390	! for each field: define the OASIS name (srcv(:)%clname)
391	! define receive or not from the namelist parameters (srcv(:)%laction)
392	! define the north fold type of lbc (srcv(:)%nsgn)
393
394	! default definitions of srcv
395	srcv(:)%laction = .FALSE. ; srcv(:)%clgrid = 'T' ; srcv(:)%nsgn = 1. ; srcv(:)%nct = 1
396
397	! ! ------------------------- !
398	! ! ice and ocean wind stress !
399	! ! ------------------------- !
400	! ! Name
401	srcv(jpr_otx1)%clname = 'O_OTaux1' ! 1st ocean component on grid ONE (T or U)
402	srcv(jpr_oty1)%clname = 'O_OTauy1' ! 2nd - - - -
403	srcv(jpr_otz1)%clname = 'O_OTauz1' ! 3rd - - - -
404	srcv(jpr_otx2)%clname = 'O_OTaux2' ! 1st ocean component on grid TWO (V)
405	srcv(jpr_oty2)%clname = 'O_OTauy2' ! 2nd - - - -
406	srcv(jpr_otz2)%clname = 'O_OTauz2' ! 3rd - - - -
407	!
408	srcv(jpr_itx1)%clname = 'O_ITaux1' ! 1st ice component on grid ONE (T, F, I or U)
409	srcv(jpr_ity1)%clname = 'O_ITauy1' ! 2nd - - - -
410	srcv(jpr_itz1)%clname = 'O_ITauz1' ! 3rd - - - -
411	srcv(jpr_itx2)%clname = 'O_ITaux2' ! 1st ice component on grid TWO (V)
412	srcv(jpr_ity2)%clname = 'O_ITauy2' ! 2nd - - - -
413	srcv(jpr_itz2)%clname = 'O_ITauz2' ! 3rd - - - -
414	!
415	! Vectors: change of sign at north fold ONLY if on the local grid
416	IF( TRIM( sn_rcv_tau%cldes ) == 'oce only' .OR. TRIM( sn_rcv_tau%cldes ) == 'oce and ice' &
417	.OR. TRIM( sn_rcv_tau%cldes ) == 'mixed oce-ice' ) THEN ! avoid working with the atmospheric fields if they are not coupled
418	!
419	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) srcv(jpr_otx1:jpr_itz2)%nsgn = -1.
420
421	! ! Set grid and action
422	SELECT CASE( TRIM( sn_rcv_tau%clvgrd ) ) ! 'T', 'U,V', 'U,V,I', 'U,V,F', 'T,I', 'T,F', or 'T,U,V'
423	CASE( 'T' )
424	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
425	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
426	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
427	CASE( 'U,V' )
428	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
429	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
430	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
431	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
432	srcv(jpr_otx1:jpr_itz2)%laction = .TRUE. ! receive oce and ice components on both grid 1 & 2
433	CASE( 'U,V,T' )
434	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
435	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
436	srcv(jpr_itx1:jpr_itz1)%clgrid = 'T' ! ice components given at T-point
437	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
438	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
439	CASE( 'U,V,I' )
440	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
441	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
442	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
443	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
444	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
445	CASE( 'U,V,F' )
446	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
447	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
448	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
449	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
450	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
451	CASE( 'T,I' )
452	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
453	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
454	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
455	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
456	CASE( 'T,F' )
457	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
458	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
459	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
460	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
461	CASE( 'T,U,V' )
462	srcv(jpr_otx1:jpr_otz1)%clgrid = 'T' ! oce components given at T-point
463	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
464	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
465	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1 only
466	srcv(jpr_itx1:jpr_itz2)%laction = .TRUE. ! receive ice components on grid 1 & 2
467	CASE default
468	CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_tau%clvgrd' )
469	END SELECT
470	!
471	IF( TRIM( sn_rcv_tau%clvref ) == 'spherical' ) & ! spherical: 3rd component not received
472	& srcv( (/jpr_otz1, jpr_otz2, jpr_itz1, jpr_itz2/) )%laction = .FALSE.
473	!
474	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) THEN ! already on local grid -> no need of the second grid
475	srcv(jpr_otx2:jpr_otz2)%laction = .FALSE.
476	srcv(jpr_itx2:jpr_itz2)%laction = .FALSE.
477	srcv(jpr_oty1)%clgrid = srcv(jpr_oty2)%clgrid ! not needed but cleaner...
478	srcv(jpr_ity1)%clgrid = srcv(jpr_ity2)%clgrid ! not needed but cleaner...
479	ENDIF
480	!
481	IF( TRIM( sn_rcv_tau%cldes ) /= 'oce and ice' ) THEN ! 'oce and ice' case ocean stress on ocean mesh used
482	srcv(jpr_itx1:jpr_itz2)%laction = .FALSE. ! ice components not received
483	srcv(jpr_itx1)%clgrid = 'U' ! ocean stress used after its transformation
484	srcv(jpr_ity1)%clgrid = 'V' ! i.e. it is always at U- & V-points for i- & j-comp. resp.
485	ENDIF
486	ENDIF
487
488	! ! ------------------------- !
489	! ! freshwater budget ! E-P
490	! ! ------------------------- !
491	! we suppose that atmosphere modele do not make the difference between precipiration (liquide or solid)
492	! over ice of free ocean within the same atmospheric cell.cd
493	srcv(jpr_rain)%clname = 'OTotRain' ! Rain = liquid precipitation
494	srcv(jpr_snow)%clname = 'OTotSnow' ! Snow = solid precipitation
495	srcv(jpr_tevp)%clname = 'OTotEvap' ! total evaporation (over oce + ice sublimation)
496	srcv(jpr_ievp)%clname = 'OIceEvap' ! evaporation over ice = sublimation
497	srcv(jpr_sbpr)%clname = 'OSubMPre' ! sublimation - liquid precipitation - solid precipitation
498	srcv(jpr_semp)%clname = 'OISubMSn' ! ice solid water budget = sublimation - solid precipitation
499	srcv(jpr_oemp)%clname = 'OOEvaMPr' ! ocean water budget = ocean Evap - ocean precip
500	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
501	CASE( 'none' ) ! nothing to do
502	CASE( 'oce only' ) ; srcv(jpr_oemp)%laction = .TRUE.
503	CASE( 'conservative' )
504	srcv( (/jpr_rain, jpr_snow, jpr_ievp, jpr_tevp/) )%laction = .TRUE.
505	IF( k_ice <= 1 ) srcv(jpr_ievp)%laction = .FALSE.
506	CASE( 'oce and ice' ) ; srcv( (/jpr_ievp, jpr_sbpr, jpr_semp, jpr_oemp/) )%laction = .TRUE.
507	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_emp%cldes' )
508	END SELECT
509	!
510	! ! ------------------------- !
511	! ! Runoffs & Calving !
512	! ! ------------------------- !
513	srcv(jpr_rnf )%clname = 'O_Runoff'
514	IF( TRIM( sn_rcv_rnf%cldes ) == 'coupled' ) THEN
515	srcv(jpr_rnf)%laction = .TRUE.
516	l_rnfcpl = .TRUE. ! -> no need to read runoffs in sbcrnf
517	ln_rnf = nn_components /= jp_iam_sas ! -> force to go through sbcrnf if not sas
518	IF(lwp) WRITE(numout,*)
519	IF(lwp) WRITE(numout,*) ' runoffs received from oasis -> force ln_rnf = ', ln_rnf
520	ENDIF
521	!
522	srcv(jpr_cal)%clname = 'OCalving' ; IF( TRIM( sn_rcv_cal%cldes) == 'coupled' ) srcv(jpr_cal)%laction = .TRUE.
523	srcv(jpr_isf)%clname = 'OIcshelf' ; IF( TRIM( sn_rcv_isf%cldes) == 'coupled' ) srcv(jpr_isf)%laction = .TRUE.
524	srcv(jpr_icb)%clname = 'OIceberg' ; IF( TRIM( sn_rcv_icb%cldes) == 'coupled' ) srcv(jpr_icb)%laction = .TRUE.
525
526	IF( srcv(jpr_isf)%laction ) THEN
527	l_isfoasis = .TRUE. ! -> isf fwf comes from oasis
528	IF(lwp) WRITE(numout,*)
529	IF(lwp) WRITE(numout,*) ' iceshelf received from oasis '
530	CALL ctl_stop('STOP','not coded')
531	ENDIF
532	!
533	! ! ------------------------- !
534	! ! non solar radiation ! Qns
535	! ! ------------------------- !
536	srcv(jpr_qnsoce)%clname = 'O_QnsOce'
537	srcv(jpr_qnsice)%clname = 'O_QnsIce'
538	srcv(jpr_qnsmix)%clname = 'O_QnsMix'
539	SELECT CASE( TRIM( sn_rcv_qns%cldes ) )
540	CASE( 'none' ) ! nothing to do
541	CASE( 'oce only' ) ; srcv( jpr_qnsoce )%laction = .TRUE.
542	CASE( 'conservative' ) ; srcv( (/jpr_qnsice, jpr_qnsmix/) )%laction = .TRUE.
543	CASE( 'oce and ice' ) ; srcv( (/jpr_qnsice, jpr_qnsoce/) )%laction = .TRUE.
544	CASE( 'mixed oce-ice' ) ; srcv( jpr_qnsmix )%laction = .TRUE.
545	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qns%cldes' )
546	END SELECT
547	IF( TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
548	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qns%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
549	!
550	! ! ------------------------- !
551	! ! solar radiation ! Qsr
552	! ! ------------------------- !
553	srcv(jpr_qsroce)%clname = 'O_QsrOce'
554	srcv(jpr_qsrice)%clname = 'O_QsrIce'
555	srcv(jpr_qsrmix)%clname = 'O_QsrMix'
556	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) )
557	CASE( 'none' ) ! nothing to do
558	CASE( 'oce only' ) ; srcv( jpr_qsroce )%laction = .TRUE.
559	CASE( 'conservative' ) ; srcv( (/jpr_qsrice, jpr_qsrmix/) )%laction = .TRUE.
560	CASE( 'oce and ice' ) ; srcv( (/jpr_qsrice, jpr_qsroce/) )%laction = .TRUE.
561	CASE( 'mixed oce-ice' ) ; srcv( jpr_qsrmix )%laction = .TRUE.
562	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qsr%cldes' )
563	END SELECT
564	IF( TRIM( sn_rcv_qsr%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
565	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qsr%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
566	!
567	! ! ------------------------- !
568	! ! non solar sensitivity ! d(Qns)/d(T)
569	! ! ------------------------- !
570	srcv(jpr_dqnsdt)%clname = 'O_dQnsdT'
571	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'coupled' ) srcv(jpr_dqnsdt)%laction = .TRUE.
572	!
573	! non solar sensitivity mandatory for mixed oce-ice solar radiation coupling technique
574	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' ) &
575	& CALL ctl_stop( 'sbc_cpl_init: namsbc_cpl namelist mismatch between sn_rcv_qns%cldes and sn_rcv_dqnsdt%cldes' )
576	!
577	! ! ------------------------- !
578	! ! 10m wind module !
579	! ! ------------------------- !
580	srcv(jpr_w10m)%clname = 'O_Wind10' ; IF( TRIM(sn_rcv_w10m%cldes ) == 'coupled' ) srcv(jpr_w10m)%laction = .TRUE.
581	!
582	! ! ------------------------- !
583	! ! wind stress module !
584	! ! ------------------------- !
585	srcv(jpr_taum)%clname = 'O_TauMod' ; IF( TRIM(sn_rcv_taumod%cldes) == 'coupled' ) srcv(jpr_taum)%laction = .TRUE.
586	!
587	! ! ------------------------- !
588	! ! Atmospheric CO2 !
589	! ! ------------------------- !
590	srcv(jpr_co2 )%clname = 'O_AtmCO2'
591	IF( TRIM(sn_rcv_co2%cldes ) == 'coupled' ) THEN
592	srcv(jpr_co2 )%laction = .TRUE.
593	l_co2cpl = .TRUE.
594	IF(lwp) WRITE(numout,*)
595	IF(lwp) WRITE(numout,*) ' Atmospheric pco2 received from oasis '
596	IF(lwp) WRITE(numout,*)
597	ENDIF
598	!
599	! ! ------------------------- !
600	! ! Mean Sea Level Pressure !
601	! ! ------------------------- !
602	srcv(jpr_mslp)%clname = 'O_MSLP' ; IF( TRIM(sn_rcv_mslp%cldes ) == 'coupled' ) srcv(jpr_mslp)%laction = .TRUE.
603	!
604	! ! ------------------------- !
605	! ! ice topmelt and botmelt !
606	! ! ------------------------- !
607	srcv(jpr_topm )%clname = 'OTopMlt'
608	srcv(jpr_botm )%clname = 'OBotMlt'
609	IF( TRIM(sn_rcv_iceflx%cldes) == 'coupled' ) THEN
610	IF( TRIM( sn_rcv_iceflx%clcat ) == 'yes' ) THEN
611	srcv(jpr_topm:jpr_botm)%nct = nn_cats_cpl
612	ELSE
613	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_iceflx%clcat should always be set to yes currently' )
614	ENDIF
615	srcv(jpr_topm:jpr_botm)%laction = .TRUE.
616	ENDIF
617	! ! ------------------------- !
618	! ! ice skin temperature !
619	! ! ------------------------- !
620	srcv(jpr_ts_ice)%clname = 'OTsfIce' ! needed by Met Office
621	IF( TRIM( sn_rcv_ts_ice%cldes ) == 'ice' ) srcv(jpr_ts_ice)%laction = .TRUE.
622	IF( TRIM( sn_rcv_ts_ice%clcat ) == 'yes' ) srcv(jpr_ts_ice)%nct = nn_cats_cpl
623	IF( TRIM( sn_rcv_emp%clcat ) == 'yes' ) srcv(jpr_ievp)%nct = nn_cats_cpl
624
625	#if defined key_si3
626	IF( ln_cndflx .AND. .NOT.ln_cndemulate ) THEN
627	IF( .NOT.srcv(jpr_ts_ice)%laction ) &
628	& CALL ctl_stop( 'sbc_cpl_init: srcv(jpr_ts_ice)%laction should be set to true when ln_cndflx=T' )
629	ENDIF
630	#endif
631	! ! ------------------------- !
632	! ! Wave breaking !
633	! ! ------------------------- !
634	srcv(jpr_hsig)%clname = 'O_Hsigwa' ! significant wave height
635	IF( TRIM(sn_rcv_hsig%cldes ) == 'coupled' ) THEN
636	srcv(jpr_hsig)%laction = .TRUE.
637	cpl_hsig = .TRUE.
638	ENDIF
639	srcv(jpr_phioc)%clname = 'O_PhiOce' ! wave to ocean energy
640	IF( TRIM(sn_rcv_phioc%cldes ) == 'coupled' ) THEN
641	srcv(jpr_phioc)%laction = .TRUE.
642	cpl_phioc = .TRUE.
643	ENDIF
644	srcv(jpr_sdrftx)%clname = 'O_Sdrfx' ! Stokes drift in the u direction
645	IF( TRIM(sn_rcv_sdrfx%cldes ) == 'coupled' ) THEN
646	srcv(jpr_sdrftx)%laction = .TRUE.
647	cpl_sdrftx = .TRUE.
648	ENDIF
649	srcv(jpr_sdrfty)%clname = 'O_Sdrfy' ! Stokes drift in the v direction
650	IF( TRIM(sn_rcv_sdrfy%cldes ) == 'coupled' ) THEN
651	srcv(jpr_sdrfty)%laction = .TRUE.
652	cpl_sdrfty = .TRUE.
653	ENDIF
654	srcv(jpr_wper)%clname = 'O_WPer' ! mean wave period
655	IF( TRIM(sn_rcv_wper%cldes ) == 'coupled' ) THEN
656	srcv(jpr_wper)%laction = .TRUE.
657	cpl_wper = .TRUE.
658	ENDIF
659	srcv(jpr_wnum)%clname = 'O_WNum' ! mean wave number
660	IF( TRIM(sn_rcv_wnum%cldes ) == 'coupled' ) THEN
661	srcv(jpr_wnum)%laction = .TRUE.
662	cpl_wnum = .TRUE.
663	ENDIF
664	srcv(jpr_wstrf)%clname = 'O_WStrf' ! stress fraction adsorbed by the wave
665	IF( TRIM(sn_rcv_wstrf%cldes ) == 'coupled' ) THEN
666	srcv(jpr_wstrf)%laction = .TRUE.
667	cpl_wstrf = .TRUE.
668	ENDIF
669	srcv(jpr_wdrag)%clname = 'O_WDrag' ! neutral surface drag coefficient
670	IF( TRIM(sn_rcv_wdrag%cldes ) == 'coupled' ) THEN
671	srcv(jpr_wdrag)%laction = .TRUE.
672	cpl_wdrag = .TRUE.
673	ENDIF
674	srcv(jpr_charn)%clname = 'O_Charn' ! Chranock coefficient
675	IF( TRIM(sn_rcv_charn%cldes ) == 'coupled' ) THEN
676	srcv(jpr_charn)%laction = .TRUE.
677	cpl_charn = .TRUE.
678	ENDIF
679	srcv(jpr_bhd)%clname = 'O_Bhd' ! Bernoulli head. waves' induced surface pressure
680	IF( TRIM(sn_rcv_bhd%cldes ) == 'coupled' ) THEN
681	srcv(jpr_bhd)%laction = .TRUE.
682	cpl_bhd = .TRUE.
683	ENDIF
684	srcv(jpr_tusd)%clname = 'O_Tusd' ! zonal stokes transport
685	IF( TRIM(sn_rcv_tusd%cldes ) == 'coupled' ) THEN
686	srcv(jpr_tusd)%laction = .TRUE.
687	cpl_tusd = .TRUE.
688	ENDIF
689	srcv(jpr_tvsd)%clname = 'O_Tvsd' ! meridional stokes tranmport
690	IF( TRIM(sn_rcv_tvsd%cldes ) == 'coupled' ) THEN
691	srcv(jpr_tvsd)%laction = .TRUE.
692	cpl_tvsd = .TRUE.
693	ENDIF
694
695	srcv(jpr_twox)%clname = 'O_Twox' ! wave to ocean momentum flux in the u direction
696	srcv(jpr_twoy)%clname = 'O_Twoy' ! wave to ocean momentum flux in the v direction
697	srcv(jpr_tawx)%clname = 'O_Tawx' ! Net wave-supported stress in the u direction
698	srcv(jpr_tawy)%clname = 'O_Tawy' ! Net wave-supported stress in the v direction
699	IF( TRIM(sn_rcv_taw%cldes ) == 'coupled' ) THEN
700	srcv(jpr_twox)%laction = .TRUE.
701	srcv(jpr_twoy)%laction = .TRUE.
702	srcv(jpr_tawx)%laction = .TRUE.
703	srcv(jpr_tawy)%laction = .TRUE.
704	cpl_taw = .TRUE.
705	ENDIF
706	!
707	! ! ------------------------------- !
708	! ! OPA-SAS coupling - rcv by opa !
709	! ! ------------------------------- !
710	srcv(jpr_sflx)%clname = 'O_SFLX'
711	srcv(jpr_fice)%clname = 'RIceFrc'
712	!
713	IF( nn_components == jp_iam_opa ) THEN ! OPA coupled to SAS via OASIS: force received field by OPA (sent by SAS)
714	srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
715	srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
716	srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
717	srcv( (/jpr_qsroce, jpr_qnsoce, jpr_oemp, jpr_sflx, jpr_fice, jpr_otx1, jpr_oty1, jpr_taum/) )%laction = .TRUE.
718	srcv(jpr_otx1)%clgrid = 'U' ! oce components given at U-point
719	srcv(jpr_oty1)%clgrid = 'V' ! and V-point
720	! Vectors: change of sign at north fold ONLY if on the local grid
721	srcv( (/jpr_otx1,jpr_oty1/) )%nsgn = -1.
722	sn_rcv_tau%clvgrd = 'U,V'
723	sn_rcv_tau%clvor = 'local grid'
724	sn_rcv_tau%clvref = 'spherical'
725	sn_rcv_emp%cldes = 'oce only'
726	!
727	IF(lwp) THEN ! control print
728	WRITE(numout,*)
729	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
730	WRITE(numout,*)' OPA component '
731	WRITE(numout,*)
732	WRITE(numout,*)' received fields from SAS component '
733	WRITE(numout,*)' ice cover '
734	WRITE(numout,*)' oce only EMP '
735	WRITE(numout,*)' salt flux '
736	WRITE(numout,*)' mixed oce-ice solar flux '
737	WRITE(numout,*)' mixed oce-ice non solar flux '
738	WRITE(numout,*)' wind stress U,V on local grid and sperical coordinates '
739	WRITE(numout,*)' wind stress module'
740	WRITE(numout,*)
741	ENDIF
742	ENDIF
743	! ! -------------------------------- !
744	! ! OPA-SAS coupling - rcv by sas !
745	! ! -------------------------------- !
746	srcv(jpr_toce )%clname = 'I_SSTSST'
747	srcv(jpr_soce )%clname = 'I_SSSal'
748	srcv(jpr_ocx1 )%clname = 'I_OCurx1'
749	srcv(jpr_ocy1 )%clname = 'I_OCury1'
750	srcv(jpr_ssh )%clname = 'I_SSHght'
751	srcv(jpr_e3t1st)%clname = 'I_E3T1st'
752	srcv(jpr_fraqsr)%clname = 'I_FraQsr'
753	!
754	IF( nn_components == jp_iam_sas ) THEN
755	IF( .NOT. ln_cpl ) srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
756	IF( .NOT. ln_cpl ) srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
757	IF( .NOT. ln_cpl ) srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
758	srcv( (/jpr_toce, jpr_soce, jpr_ssh, jpr_fraqsr, jpr_ocx1, jpr_ocy1/) )%laction = .TRUE.
759	srcv( jpr_e3t1st )%laction = .NOT.ln_linssh
760	srcv(jpr_ocx1)%clgrid = 'U' ! oce components given at U-point
761	srcv(jpr_ocy1)%clgrid = 'V' ! and V-point
762	! Vectors: change of sign at north fold ONLY if on the local grid
763	srcv(jpr_ocx1:jpr_ocy1)%nsgn = -1.
764	! Change first letter to couple with atmosphere if already coupled OPA
765	! this is nedeed as each variable name used in the namcouple must be unique:
766	! for example O_Runoff received by OPA from SAS and therefore S_Runoff received by SAS from the Atmosphere
767	DO jn = 1, jprcv
768	IF( srcv(jn)%clname(1:1) == "O" ) srcv(jn)%clname = "S"//srcv(jn)%clname(2:LEN(srcv(jn)%clname))
769	END DO
770	!
771	IF(lwp) THEN ! control print
772	WRITE(numout,*)
773	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
774	WRITE(numout,*)' SAS component '
775	WRITE(numout,*)
776	IF( .NOT. ln_cpl ) THEN
777	WRITE(numout,*)' received fields from OPA component '
778	ELSE
779	WRITE(numout,*)' Additional received fields from OPA component : '
780	ENDIF
781	WRITE(numout,*)' sea surface temperature (Celsius) '
782	WRITE(numout,*)' sea surface salinity '
783	WRITE(numout,*)' surface currents '
784	WRITE(numout,*)' sea surface height '
785	WRITE(numout,*)' thickness of first ocean T level '
786	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
787	WRITE(numout,*)
788	ENDIF
789	ENDIF
790
791	! =================================================== !
792	! Allocate all parts of frcv used for received fields !
793	! =================================================== !
794	DO jn = 1, jprcv
795	IF( srcv(jn)%laction ) ALLOCATE( frcv(jn)%z3(jpi,jpj,srcv(jn)%nct) )
796	END DO
797	! Allocate taum part of frcv which is used even when not received as coupling field
798	IF( .NOT. srcv(jpr_taum)%laction ) ALLOCATE( frcv(jpr_taum)%z3(jpi,jpj,srcv(jpr_taum)%nct) )
799	! Allocate w10m part of frcv which is used even when not received as coupling field
800	IF( .NOT. srcv(jpr_w10m)%laction ) ALLOCATE( frcv(jpr_w10m)%z3(jpi,jpj,srcv(jpr_w10m)%nct) )
801	! Allocate jpr_otx1 part of frcv which is used even when not received as coupling field
802	IF( .NOT. srcv(jpr_otx1)%laction ) ALLOCATE( frcv(jpr_otx1)%z3(jpi,jpj,srcv(jpr_otx1)%nct) )
803	IF( .NOT. srcv(jpr_oty1)%laction ) ALLOCATE( frcv(jpr_oty1)%z3(jpi,jpj,srcv(jpr_oty1)%nct) )
804	! Allocate itx1 and ity1 as they are used in sbc_cpl_ice_tau even if srcv(jpr_itx1)%laction = .FALSE.
805	IF( k_ice /= 0 ) THEN
806	IF( .NOT. srcv(jpr_itx1)%laction ) ALLOCATE( frcv(jpr_itx1)%z3(jpi,jpj,srcv(jpr_itx1)%nct) )
807	IF( .NOT. srcv(jpr_ity1)%laction ) ALLOCATE( frcv(jpr_ity1)%z3(jpi,jpj,srcv(jpr_ity1)%nct) )
808	ENDIF
809
810	! ================================ !
811	! Define the send interface !
812	! ================================ !
813	! for each field: define the OASIS name (ssnd(:)%clname)
814	! define send or not from the namelist parameters (ssnd(:)%laction)
815	! define the north fold type of lbc (ssnd(:)%nsgn)
816
817	! default definitions of nsnd
818	ssnd(:)%laction = .FALSE. ; ssnd(:)%clgrid = 'T' ; ssnd(:)%nsgn = 1. ; ssnd(:)%nct = 1
819
820	! ! ------------------------- !
821	! ! Surface temperature !
822	! ! ------------------------- !
823	ssnd(jps_toce)%clname = 'O_SSTSST'
824	ssnd(jps_tice)%clname = 'O_TepIce'
825	ssnd(jps_ttilyr)%clname = 'O_TtiLyr'
826	ssnd(jps_tmix)%clname = 'O_TepMix'
827	SELECT CASE( TRIM( sn_snd_temp%cldes ) )
828	CASE( 'none' ) ! nothing to do
829	CASE( 'oce only' ) ; ssnd( jps_toce )%laction = .TRUE.
830	CASE( 'oce and ice' , 'weighted oce and ice' , 'oce and weighted ice' )
831	ssnd( (/jps_toce, jps_tice/) )%laction = .TRUE.
832	IF( TRIM( sn_snd_temp%clcat ) == 'yes' ) ssnd(jps_tice)%nct = nn_cats_cpl
833	CASE( 'mixed oce-ice' ) ; ssnd( jps_tmix )%laction = .TRUE.
834	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_temp%cldes' )
835	END SELECT
836
837	! ! ------------------------- !
838	! ! Albedo !
839	! ! ------------------------- !
840	ssnd(jps_albice)%clname = 'O_AlbIce'
841	ssnd(jps_albmix)%clname = 'O_AlbMix'
842	SELECT CASE( TRIM( sn_snd_alb%cldes ) )
843	CASE( 'none' ) ! nothing to do
844	CASE( 'ice' , 'weighted ice' ) ; ssnd(jps_albice)%laction = .TRUE.
845	CASE( 'mixed oce-ice' ) ; ssnd(jps_albmix)%laction = .TRUE.
846	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_alb%cldes' )
847	END SELECT
848	!
849	! Need to calculate oceanic albedo if
850	! 1. sending mixed oce-ice albedo or
851	! 2. receiving mixed oce-ice solar radiation
852	IF( TRIM ( sn_snd_alb%cldes ) == 'mixed oce-ice' .OR. TRIM ( sn_rcv_qsr%cldes ) == 'mixed oce-ice' ) THEN
853	CALL oce_alb( zaos, zacs )
854	! Due to lack of information on nebulosity : mean clear/overcast sky
855	alb_oce_mix(:,:) = ( zacs(:,:) + zaos(:,:) ) * 0.5
856	ENDIF
857	! ! ------------------------- !
858	! ! Ice fraction & Thickness !
859	! ! ------------------------- !
860	ssnd(jps_fice)%clname = 'OIceFrc'
861	ssnd(jps_ficet)%clname = 'OIceFrcT'
862	ssnd(jps_hice)%clname = 'OIceTck'
863	ssnd(jps_a_p)%clname = 'OPndFrc'
864	ssnd(jps_ht_p)%clname = 'OPndTck'
865	ssnd(jps_hsnw)%clname = 'OSnwTck'
866	ssnd(jps_fice1)%clname = 'OIceFrd'
867	IF( k_ice /= 0 ) THEN
868	ssnd(jps_fice)%laction = .TRUE. ! if ice treated in the ocean (even in climato case)
869	ssnd(jps_fice1)%laction = .TRUE. ! First-order regridded ice concentration, to be used producing atmos-to-ice fluxes (Met Office requirement)
870	! Currently no namelist entry to determine sending of multi-category ice fraction so use the thickness entry for now
871	IF( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_fice)%nct = nn_cats_cpl
872	IF( TRIM( sn_snd_thick1%clcat ) == 'yes' ) ssnd(jps_fice1)%nct = nn_cats_cpl
873	ENDIF
874
875	IF(TRIM( sn_snd_ifrac%cldes ) == 'coupled') ssnd(jps_ficet)%laction = .TRUE.
876
877	SELECT CASE ( TRIM( sn_snd_thick%cldes ) )
878	CASE( 'none' ) ! nothing to do
879	CASE( 'ice and snow' )
880	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
881	IF( TRIM( sn_snd_thick%clcat ) == 'yes' ) THEN
882	ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
883	ENDIF
884	CASE ( 'weighted ice and snow' )
885	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
886	IF( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
887	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_thick%cldes' )
888	END SELECT
889
890	! Initialise ice fractions from last coupling time to zero (needed by Met-Office)
891	#if defined key_si3 \|\| defined key_cice
892	a_i_last_couple(:,:,:) = 0._wp
893	#endif
894	! ! ------------------------- !
895	! ! Ice Meltponds !
896	! ! ------------------------- !
897	! Needed by Met Office
898	ssnd(jps_a_p)%clname = 'OPndFrc'
899	ssnd(jps_ht_p)%clname = 'OPndTck'
900	SELECT CASE ( TRIM( sn_snd_mpnd%cldes ) )
901	CASE ( 'none' )
902	ssnd(jps_a_p)%laction = .FALSE.
903	ssnd(jps_ht_p)%laction = .FALSE.
904	CASE ( 'ice only' )
905	ssnd(jps_a_p)%laction = .TRUE.
906	ssnd(jps_ht_p)%laction = .TRUE.
907	IF( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
908	ssnd(jps_a_p)%nct = nn_cats_cpl
909	ssnd(jps_ht_p)%nct = nn_cats_cpl
910	ELSE
911	IF( nn_cats_cpl > 1 ) THEN
912	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_mpnd%cldes if not exchanging category fields' )
913	ENDIF
914	ENDIF
915	CASE ( 'weighted ice' )
916	ssnd(jps_a_p)%laction = .TRUE.
917	ssnd(jps_ht_p)%laction = .TRUE.
918	IF( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
919	ssnd(jps_a_p)%nct = nn_cats_cpl
920	ssnd(jps_ht_p)%nct = nn_cats_cpl
921	ENDIF
922	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_mpnd%cldes; '//sn_snd_mpnd%cldes )
923	END SELECT
924
925	! ! ------------------------- !
926	! ! Surface current !
927	! ! ------------------------- !
928	! ocean currents ! ice velocities
929	ssnd(jps_ocx1)%clname = 'O_OCurx1' ; ssnd(jps_ivx1)%clname = 'O_IVelx1'
930	ssnd(jps_ocy1)%clname = 'O_OCury1' ; ssnd(jps_ivy1)%clname = 'O_IVely1'
931	ssnd(jps_ocz1)%clname = 'O_OCurz1' ; ssnd(jps_ivz1)%clname = 'O_IVelz1'
932	ssnd(jps_ocxw)%clname = 'O_OCurxw'
933	ssnd(jps_ocyw)%clname = 'O_OCuryw'
934	!
935	ssnd(jps_ocx1:jps_ivz1)%nsgn = -1. ! vectors: change of the sign at the north fold
936
937	IF( sn_snd_crt%clvgrd == 'U,V' ) THEN
938	ssnd(jps_ocx1)%clgrid = 'U' ; ssnd(jps_ocy1)%clgrid = 'V'
939	ELSE IF( sn_snd_crt%clvgrd /= 'T' ) THEN
940	CALL ctl_stop( 'sn_snd_crt%clvgrd must be equal to T' )
941	ENDIF
942	ssnd(jps_ocx1:jps_ivz1)%laction = .TRUE. ! default: all are send
943	IF( TRIM( sn_snd_crt%clvref ) == 'spherical' ) ssnd( (/jps_ocz1, jps_ivz1/) )%laction = .FALSE.
944	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) ssnd(jps_ocx1:jps_ivz1)%nsgn = 1.
945	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
946	CASE( 'none' ) ; ssnd(jps_ocx1:jps_ivz1)%laction = .FALSE.
947	CASE( 'oce only' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
948	CASE( 'weighted oce and ice' ) ! nothing to do
949	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
950	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crt%cldes' )
951	END SELECT
952
953	ssnd(jps_ocxw:jps_ocyw)%nsgn = -1. ! vectors: change of the sign at the north fold
954
955	IF( sn_snd_crtw%clvgrd == 'U,V' ) THEN
956	ssnd(jps_ocxw)%clgrid = 'U' ; ssnd(jps_ocyw)%clgrid = 'V'
957	ELSE IF( sn_snd_crtw%clvgrd /= 'T' ) THEN
958	CALL ctl_stop( 'sn_snd_crtw%clvgrd must be equal to T' )
959	ENDIF
960	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) ssnd(jps_ocxw:jps_ocyw)%nsgn = 1.
961	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
962	CASE( 'none' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .FALSE.
963	CASE( 'oce only' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .TRUE.
964	CASE( 'weighted oce and ice' ) ! nothing to do
965	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
966	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crtw%cldes' )
967	END SELECT
968
969	! ! ------------------------- !
970	! ! CO2 flux !
971	! ! ------------------------- !
972	ssnd(jps_co2)%clname = 'O_CO2FLX' ; IF( TRIM(sn_snd_co2%cldes) == 'coupled' ) ssnd(jps_co2 )%laction = .TRUE.
973	!
974	! ! ------------------------- !
975	! ! Sea surface freezing temp !
976	! ! ------------------------- !
977	! needed by Met Office
978	ssnd(jps_sstfrz)%clname = 'O_SSTFrz' ; IF( TRIM(sn_snd_sstfrz%cldes) == 'coupled' ) ssnd(jps_sstfrz)%laction = .TRUE.
979	!
980	! ! ------------------------- !
981	! ! Ice conductivity !
982	! ! ------------------------- !
983	! needed by Met Office
984	! Note that ultimately we will move to passing an ocean effective conductivity as well so there
985	! will be some changes to the parts of the code which currently relate only to ice conductivity
986	ssnd(jps_ttilyr )%clname = 'O_TtiLyr'
987	SELECT CASE ( TRIM( sn_snd_ttilyr%cldes ) )
988	CASE ( 'none' )
989	ssnd(jps_ttilyr)%laction = .FALSE.
990	CASE ( 'ice only' )
991	ssnd(jps_ttilyr)%laction = .TRUE.
992	IF( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) THEN
993	ssnd(jps_ttilyr)%nct = nn_cats_cpl
994	ELSE
995	IF( nn_cats_cpl > 1 ) THEN
996	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_ttilyr%cldes if not exchanging category fields' )
997	ENDIF
998	ENDIF
999	CASE ( 'weighted ice' )
1000	ssnd(jps_ttilyr)%laction = .TRUE.
1001	IF( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) ssnd(jps_ttilyr)%nct = nn_cats_cpl
1002	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_ttilyr%cldes;'//sn_snd_ttilyr%cldes )
1003	END SELECT
1004
1005	ssnd(jps_kice )%clname = 'OIceKn'
1006	SELECT CASE ( TRIM( sn_snd_cond%cldes ) )
1007	CASE ( 'none' )
1008	ssnd(jps_kice)%laction = .FALSE.
1009	CASE ( 'ice only' )
1010	ssnd(jps_kice)%laction = .TRUE.
1011	IF( TRIM( sn_snd_cond%clcat ) == 'yes' ) THEN
1012	ssnd(jps_kice)%nct = nn_cats_cpl
1013	ELSE
1014	IF( nn_cats_cpl > 1 ) THEN
1015	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_cond%cldes if not exchanging category fields' )
1016	ENDIF
1017	ENDIF
1018	CASE ( 'weighted ice' )
1019	ssnd(jps_kice)%laction = .TRUE.
1020	IF( TRIM( sn_snd_cond%clcat ) == 'yes' ) ssnd(jps_kice)%nct = nn_cats_cpl
1021	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_cond%cldes;'//sn_snd_cond%cldes )
1022	END SELECT
1023	!
1024	! ! ------------------------- !
1025	! ! Sea surface height !
1026	! ! ------------------------- !
1027	ssnd(jps_wlev)%clname = 'O_Wlevel' ; IF( TRIM(sn_snd_wlev%cldes) == 'coupled' ) ssnd(jps_wlev)%laction = .TRUE.
1028
1029	! ! ------------------------------- !
1030	! ! OPA-SAS coupling - snd by opa !
1031	! ! ------------------------------- !
1032	ssnd(jps_ssh )%clname = 'O_SSHght'
1033	ssnd(jps_soce )%clname = 'O_SSSal'
1034	ssnd(jps_e3t1st)%clname = 'O_E3T1st'
1035	ssnd(jps_fraqsr)%clname = 'O_FraQsr'
1036	!
1037	IF( nn_components == jp_iam_opa ) THEN
1038	ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
1039	ssnd( (/jps_toce, jps_soce, jps_ssh, jps_fraqsr, jps_ocx1, jps_ocy1/) )%laction = .TRUE.
1040	ssnd( jps_e3t1st )%laction = .NOT.ln_linssh
1041	! vector definition: not used but cleaner...
1042	ssnd(jps_ocx1)%clgrid = 'U' ! oce components given at U-point
1043	ssnd(jps_ocy1)%clgrid = 'V' ! and V-point
1044	sn_snd_crt%clvgrd = 'U,V'
1045	sn_snd_crt%clvor = 'local grid'
1046	sn_snd_crt%clvref = 'spherical'
1047	!
1048	IF(lwp) THEN ! control print
1049	WRITE(numout,*)
1050	WRITE(numout,*)' sent fields to SAS component '
1051	WRITE(numout,*)' sea surface temperature (T before, Celsius) '
1052	WRITE(numout,*)' sea surface salinity '
1053	WRITE(numout,*)' surface currents U,V on local grid and spherical coordinates'
1054	WRITE(numout,*)' sea surface height '
1055	WRITE(numout,*)' thickness of first ocean T level '
1056	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
1057	WRITE(numout,*)
1058	ENDIF
1059	ENDIF
1060	! ! ------------------------------- !
1061	! ! OPA-SAS coupling - snd by sas !
1062	! ! ------------------------------- !
1063	ssnd(jps_sflx )%clname = 'I_SFLX'
1064	ssnd(jps_fice2 )%clname = 'IIceFrc'
1065	ssnd(jps_qsroce)%clname = 'I_QsrOce'
1066	ssnd(jps_qnsoce)%clname = 'I_QnsOce'
1067	ssnd(jps_oemp )%clname = 'IOEvaMPr'
1068	ssnd(jps_otx1 )%clname = 'I_OTaux1'
1069	ssnd(jps_oty1 )%clname = 'I_OTauy1'
1070	ssnd(jps_rnf )%clname = 'I_Runoff'
1071	ssnd(jps_taum )%clname = 'I_TauMod'
1072	!
1073	IF( nn_components == jp_iam_sas ) THEN
1074	IF( .NOT. ln_cpl ) ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
1075	ssnd( (/jps_qsroce, jps_qnsoce, jps_oemp, jps_fice2, jps_sflx, jps_otx1, jps_oty1, jps_taum/) )%laction = .TRUE.
1076	!
1077	! Change first letter to couple with atmosphere if already coupled with sea_ice
1078	! this is nedeed as each variable name used in the namcouple must be unique:
1079	! for example O_SSTSST sent by OPA to SAS and therefore S_SSTSST sent by SAS to the Atmosphere
1080	DO jn = 1, jpsnd
1081	IF( ssnd(jn)%clname(1:1) == "O" ) ssnd(jn)%clname = "S"//ssnd(jn)%clname(2:LEN(ssnd(jn)%clname))
1082	END DO
1083	!
1084	IF(lwp) THEN ! control print
1085	WRITE(numout,*)
1086	IF( .NOT. ln_cpl ) THEN
1087	WRITE(numout,*)' sent fields to OPA component '
1088	ELSE
1089	WRITE(numout,*)' Additional sent fields to OPA component : '
1090	ENDIF
1091	WRITE(numout,*)' ice cover '
1092	WRITE(numout,*)' oce only EMP '
1093	WRITE(numout,*)' salt flux '
1094	WRITE(numout,*)' mixed oce-ice solar flux '
1095	WRITE(numout,*)' mixed oce-ice non solar flux '
1096	WRITE(numout,*)' wind stress U,V components'
1097	WRITE(numout,*)' wind stress module'
1098	ENDIF
1099	ENDIF
1100
1101	!
1102	! ================================ !
1103	! initialisation of the coupler !
1104	! ================================ !
1105	CALL cpl_define(jprcv, jpsnd, nn_cplmodel)
1106
1107	IF(ln_usecplmask) THEN
1108	xcplmask(:,:,:) = 0.
1109	CALL iom_open( 'cplmask', inum )
1110	CALL iom_get( inum, jpdom_unknown, 'cplmask', xcplmask(1:jpi,1:jpj,1:nn_cplmodel), &
1111	& kstart = (/ mig(1),mjg(1),1 /), kcount = (/ jpi,jpj,nn_cplmodel /) )
1112	CALL iom_close( inum )
1113	ELSE
1114	xcplmask(:,:,:) = 1.
1115	ENDIF
1116	xcplmask(:,:,0) = 1. - SUM( xcplmask(:,:,1:nn_cplmodel), dim = 3 )
1117	!
1118	!
1119	END SUBROUTINE sbc_cpl_init
1120
1121
1122	SUBROUTINE sbc_cpl_rcv( kt, k_fsbc, k_ice, Kbb, Kmm )
1123	!!----------------------------------------------------------------------
1124	!! * ROUTINE sbc_cpl_rcv *
1125	!!
1126	!! ** Purpose : provide the stress over the ocean and, if no sea-ice,
1127	!! provide the ocean heat and freshwater fluxes.
1128	!!
1129	!! ** Method : - Receive all the atmospheric fields (stored in frcv array). called at each time step.
1130	!! OASIS controls if there is something do receive or not. nrcvinfo contains the info
1131	!! to know if the field was really received or not
1132	!!
1133	!! --> If ocean stress was really received:
1134	!!
1135	!! - transform the received ocean stress vector from the received
1136	!! referential and grid into an atmosphere-ocean stress in
1137	!! the (i,j) ocean referencial and at the ocean velocity point.
1138	!! The received stress are :
1139	!! - defined by 3 components (if cartesian coordinate)
1140	!! or by 2 components (if spherical)
1141	!! - oriented along geographical coordinate (if eastward-northward)
1142	!! or along the local grid coordinate (if local grid)
1143	!! - given at U- and V-point, resp. if received on 2 grids
1144	!! or at T-point if received on 1 grid
1145	!! Therefore and if necessary, they are successively
1146	!! processed in order to obtain them
1147	!! first as 2 components on the sphere
1148	!! second as 2 components oriented along the local grid
1149	!! third as 2 components on the U,V grid
1150	!!
1151	!! -->
1152	!!
1153	!! - In 'ocean only' case, non solar and solar ocean heat fluxes
1154	!! and total ocean freshwater fluxes
1155	!!
1156	!! ** Method : receive all fields from the atmosphere and transform
1157	!! them into ocean surface boundary condition fields
1158	!!
1159	!! ** Action : update utau, vtau ocean stress at U,V grid
1160	!! taum wind stress module at T-point
1161	!! wndm wind speed module at T-point over free ocean or leads in presence of sea-ice
1162	!! qns non solar heat fluxes including emp heat content (ocean only case)
1163	!! and the latent heat flux of solid precip. melting
1164	!! qsr solar ocean heat fluxes (ocean only case)
1165	!! emp upward mass flux [evap. - precip. (- runoffs) (- calving)] (ocean only case)
1166	!!----------------------------------------------------------------------
1167	USE zdf_oce, ONLY : ln_zdfswm
1168	!
1169	INTEGER, INTENT(in) :: kt ! ocean model time step index
1170	INTEGER, INTENT(in) :: k_fsbc ! frequency of sbc (-> ice model) computation
1171	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
1172	INTEGER, INTENT(in) :: Kbb, Kmm ! ocean model time level indices
1173	!!
1174	LOGICAL :: llnewtx, llnewtau ! update wind stress components and module??
1175	INTEGER :: ji, jj, jn ! dummy loop indices
1176	INTEGER :: isec ! number of seconds since nit000 (assuming rdt did not change since nit000)
1177	REAL(wp) :: zcumulneg, zcumulpos ! temporary scalars
1178	REAL(wp) :: zcoef ! temporary scalar
1179	REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3
1180	REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient
1181	REAL(wp) :: zzx, zzy ! temporary variables
1182	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty, zmsk, zemp, zqns, zqsr, zcloud_fra
1183	!!----------------------------------------------------------------------
1184	!
1185	IF( kt == nit000 ) THEN
1186	! cannot be done in the init phase when we use agrif as cpl_freq requires that oasis_enddef is done
1187	ncpl_qsr_freq = cpl_freq( 'O_QsrOce' ) + cpl_freq( 'O_QsrMix' ) + cpl_freq( 'I_QsrOce' ) + cpl_freq( 'I_QsrMix' )
1188	IF( ln_dm2dc .AND. ncpl_qsr_freq /= 86400 ) &
1189	& CALL ctl_stop( 'sbc_cpl_rcv: diurnal cycle reconstruction (ln_dm2dc) needs daily couping for solar radiation' )
1190
1191	IF( ncpl_qsr_freq /= 0) ncpl_qsr_freq = 86400 / ncpl_qsr_freq ! used by top
1192
1193	IF ( ln_wave .AND. nn_components == 0 ) THEN
1194	ncpl_qsr_freq = 1;
1195	WRITE(numout,*) 'ncpl_qsr_freq is set to 1 when coupling NEMO with wave (without SAS) '
1196	ENDIF
1197	ENDIF
1198	!
1199	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1200	!
1201	! ! ======================================================= !
1202	! ! Receive all the atmos. fields (including ice information)
1203	! ! ======================================================= !
1204	isec = ( kt - nit000 ) * NINT( rn_Dt ) ! date of exchanges
1205	DO jn = 1, jprcv ! received fields sent by the atmosphere
1206	IF( srcv(jn)%laction ) CALL cpl_rcv( jn, isec, frcv(jn)%z3, xcplmask(:,:,1:nn_cplmodel), nrcvinfo(jn) )
1207	END DO
1208
1209	! ! ========================= !
1210	IF( srcv(jpr_otx1)%laction ) THEN ! ocean stress components !
1211	! ! ========================= !
1212	! define frcv(jpr_otx1)%z3(:,:,1) and frcv(jpr_oty1)%z3(:,:,1): stress at U/V point along model grid
1213	! => need to be done only when we receive the field
1214	IF( nrcvinfo(jpr_otx1) == OASIS_Rcv ) THEN
1215	!
1216	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1217	! ! (cartesian to spherical -> 3 to 2 components)
1218	!
1219	CALL geo2oce( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), frcv(jpr_otz1)%z3(:,:,1), &
1220	& srcv(jpr_otx1)%clgrid, ztx, zty )
1221	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1222	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1223	!
1224	IF( srcv(jpr_otx2)%laction ) THEN
1225	CALL geo2oce( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), frcv(jpr_otz2)%z3(:,:,1), &
1226	& srcv(jpr_otx2)%clgrid, ztx, zty )
1227	frcv(jpr_otx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1228	frcv(jpr_oty2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1229	ENDIF
1230	!
1231	ENDIF
1232	!
1233	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1234	! ! (geographical to local grid -> rotate the components)
1235	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->i', ztx )
1236	IF( srcv(jpr_otx2)%laction ) THEN
1237	CALL rot_rep( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), srcv(jpr_otx2)%clgrid, 'en->j', zty )
1238	ELSE
1239	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->j', zty )
1240	ENDIF
1241	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1242	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 2nd grid
1243	ENDIF
1244	!
1245	IF( srcv(jpr_otx1)%clgrid == 'T' ) THEN
1246	DO_2D( 0, 0, 0, 0 ) ! T ==> (U,V)
1247	frcv(jpr_otx1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_otx1)%z3(ji+1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1) )
1248	frcv(jpr_oty1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_oty1)%z3(ji ,jj+1,1) + frcv(jpr_oty1)%z3(ji,jj,1) )
1249	END_2D
1250	CALL lbc_lnk_multi( 'sbccpl', frcv(jpr_otx1)%z3(:,:,1), 'U', -1.0_wp, frcv(jpr_oty1)%z3(:,:,1), 'V', -1.0_wp )
1251	ENDIF
1252	llnewtx = .TRUE.
1253	ELSE
1254	llnewtx = .FALSE.
1255	ENDIF
1256	! ! ========================= !
1257	ELSE ! No dynamical coupling !
1258	! ! ========================= !
1259	frcv(jpr_otx1)%z3(:,:,1) = 0.e0 ! here simply set to zero
1260	frcv(jpr_oty1)%z3(:,:,1) = 0.e0 ! an external read in a file can be added instead
1261	llnewtx = .TRUE.
1262	!
1263	ENDIF
1264	! ! ========================= !
1265	! ! wind stress module ! (taum)
1266	! ! ========================= !
1267	IF( .NOT. srcv(jpr_taum)%laction ) THEN ! compute wind stress module from its components if not received
1268	! => need to be done only when otx1 was changed
1269	IF( llnewtx ) THEN
1270	DO_2D( 0, 0, 0, 0 )
1271	zzx = frcv(jpr_otx1)%z3(ji-1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1)
1272	zzy = frcv(jpr_oty1)%z3(ji ,jj-1,1) + frcv(jpr_oty1)%z3(ji,jj,1)
1273	frcv(jpr_taum)%z3(ji,jj,1) = 0.5 * SQRT( zzx * zzx + zzy * zzy )
1274	END_2D
1275	CALL lbc_lnk( 'sbccpl', frcv(jpr_taum)%z3(:,:,1), 'T', 1.0_wp )
1276	llnewtau = .TRUE.
1277	ELSE
1278	llnewtau = .FALSE.
1279	ENDIF
1280	ELSE
1281	llnewtau = nrcvinfo(jpr_taum) == OASIS_Rcv
1282	! Stress module can be negative when received (interpolation problem)
1283	IF( llnewtau ) THEN
1284	frcv(jpr_taum)%z3(:,:,1) = MAX( 0._wp, frcv(jpr_taum)%z3(:,:,1) )
1285	ENDIF
1286	ENDIF
1287	!
1288	! ! ========================= !
1289	! ! 10 m wind speed ! (wndm)
1290	! ! ========================= !
1291	IF( .NOT. srcv(jpr_w10m)%laction ) THEN ! compute wind spreed from wind stress module if not received
1292	! => need to be done only when taumod was changed
1293	IF( llnewtau ) THEN
1294	zcoef = 1. / ( zrhoa * zcdrag )
1295	DO_2D( 1, 1, 1, 1 )
1296	frcv(jpr_w10m)%z3(ji,jj,1) = SQRT( frcv(jpr_taum)%z3(ji,jj,1) * zcoef )
1297	END_2D
1298	ENDIF
1299	ENDIF
1300	!!$ ! ! ========================= !
1301	!!$ SELECT CASE( TRIM( sn_rcv_clouds%cldes ) ) ! cloud fraction !
1302	!!$ ! ! ========================= !
1303	!!$ cloud_fra(:,:) = frcv(jpr_clfra)*z3(:,:,1)
1304	!!$ END SELECT
1305	!!$
1306	zcloud_fra(:,:) = pp_cldf ! should be real cloud fraction instead (as in the bulk) but needs to be read from atm.
1307	IF( ln_mixcpl ) THEN
1308	cloud_fra(:,:) = cloud_fra(:,:) * xcplmask(:,:,0) + zcloud_fra(:,:)* zmsk(:,:)
1309	ELSE
1310	cloud_fra(:,:) = zcloud_fra(:,:)
1311	ENDIF
1312	! ! ========================= !
1313	! u(v)tau and taum will be modified by ice model
1314	! -> need to be reset before each call of the ice/fsbc
1315	IF( MOD( kt-1, k_fsbc ) == 0 ) THEN
1316	!
1317	IF( ln_mixcpl ) THEN
1318	utau(:,:) = utau(:,:) * xcplmask(:,:,0) + frcv(jpr_otx1)%z3(:,:,1) * zmsk(:,:)
1319	vtau(:,:) = vtau(:,:) * xcplmask(:,:,0) + frcv(jpr_oty1)%z3(:,:,1) * zmsk(:,:)
1320	taum(:,:) = taum(:,:) * xcplmask(:,:,0) + frcv(jpr_taum)%z3(:,:,1) * zmsk(:,:)
1321	wndm(:,:) = wndm(:,:) * xcplmask(:,:,0) + frcv(jpr_w10m)%z3(:,:,1) * zmsk(:,:)
1322	ELSE
1323	utau(:,:) = frcv(jpr_otx1)%z3(:,:,1)
1324	vtau(:,:) = frcv(jpr_oty1)%z3(:,:,1)
1325	taum(:,:) = frcv(jpr_taum)%z3(:,:,1)
1326	wndm(:,:) = frcv(jpr_w10m)%z3(:,:,1)
1327	ENDIF
1328	CALL iom_put( "taum_oce", taum ) ! output wind stress module
1329	!
1330	ENDIF
1331
1332	! ! ================== !
1333	! ! atmosph. CO2 (ppm) !
1334	! ! ================== !
1335	IF( srcv(jpr_co2)%laction ) atm_co2(:,:) = frcv(jpr_co2)%z3(:,:,1)
1336	!
1337	! ! ========================= !
1338	! ! Mean Sea Level Pressure ! (taum)
1339	! ! ========================= !
1340	IF( srcv(jpr_mslp)%laction ) THEN ! UKMO SHELF effect of atmospheric pressure on SSH
1341	IF( kt /= nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) !* Swap of ssh_ib fields
1342
1343	r1_grau = 1.e0 / (grav * rho0) !* constant for optimization
1344	ssh_ib(:,:) = - ( frcv(jpr_mslp)%z3(:,:,1) - rpref ) * r1_grau ! equivalent ssh (inverse barometer)
1345	apr (:,:) = frcv(jpr_mslp)%z3(:,:,1) !atmospheric pressure
1346
1347	IF( kt == nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) ! correct this later (read from restart if possible)
1348	ENDIF
1349	!
1350	IF( ln_sdw ) THEN ! Stokes Drift correction activated
1351	! ! ========================= !
1352	! ! Stokes drift u !
1353	! ! ========================= !
1354	IF( srcv(jpr_sdrftx)%laction ) ut0sd(:,:) = frcv(jpr_sdrftx)%z3(:,:,1)
1355	!
1356	! ! ========================= !
1357	! ! Stokes drift v !
1358	! ! ========================= !
1359	IF( srcv(jpr_sdrfty)%laction ) vt0sd(:,:) = frcv(jpr_sdrfty)%z3(:,:,1)
1360	!
1361	! ! ========================= !
1362	! ! Wave mean period !
1363	! ! ========================= !
1364	IF( srcv(jpr_wper)%laction ) wmp(:,:) = frcv(jpr_wper)%z3(:,:,1)
1365	!
1366	! ! ========================= !
1367	! ! Significant wave height !
1368	! ! ========================= !
1369	IF( srcv(jpr_hsig)%laction ) hsw(:,:) = frcv(jpr_hsig)%z3(:,:,1)
1370	!
1371	! ! ========================= !
1372	! ! Vertical mixing Qiao !
1373	! ! ========================= !
1374	IF( srcv(jpr_wnum)%laction .AND. ln_zdfswm ) wnum(:,:) = frcv(jpr_wnum)%z3(:,:,1)
1375
1376	! Calculate the 3D Stokes drift both in coupled and not fully uncoupled mode
1377	IF( srcv(jpr_sdrftx)%laction .OR. srcv(jpr_sdrfty)%laction .OR. &
1378	srcv(jpr_wper)%laction .OR. srcv(jpr_hsig)%laction ) THEN
1379	CALL sbc_stokes( Kmm )
1380	ENDIF
1381	ENDIF
1382	! ! ========================= !
1383	! ! Stress adsorbed by waves !
1384	! ! ========================= !
1385	IF( srcv(jpr_wstrf)%laction .AND. ln_tauoc ) tauoc_wave(:,:) = frcv(jpr_wstrf)%z3(:,:,1)
1386	!
1387	! ! ========================= !
1388	! ! Wave drag coefficient !
1389	! ! ========================= !
1390	IF( srcv(jpr_wdrag)%laction .AND. ln_cdgw ) cdn_wave(:,:) = frcv(jpr_wdrag)%z3(:,:,1)
1391	!
1392	! ! ========================= !
1393	! ! Chranock coefficient !
1394	! ! ========================= !
1395	IF( srcv(jpr_charn)%laction .AND. ln_charn ) charn(:,:) = frcv(jpr_charn)%z3(:,:,1)
1396	!
1397	! ! ========================= !
1398	! ! net wave-supported stress !
1399	! ! ========================= !
1400	IF( srcv(jpr_tawx)%laction .AND. ln_taw ) tawx(:,:) = frcv(jpr_tawx)%z3(:,:,1)
1401	IF( srcv(jpr_tawy)%laction .AND. ln_taw ) tawy(:,:) = frcv(jpr_tawy)%z3(:,:,1)
1402	!
1403	! ! ========================= !
1404	! !wave to ocean momentum flux!
1405	! ! ========================= !
1406	IF( srcv(jpr_twox)%laction .AND. ln_taw ) twox(:,:) = frcv(jpr_twox)%z3(:,:,1)
1407	IF( srcv(jpr_twoy)%laction .AND. ln_taw ) twoy(:,:) = frcv(jpr_twoy)%z3(:,:,1)
1408	!
1409	! ! ========================= !
1410	! ! wave TKE flux at sfc !
1411	! ! ========================= !
1412	IF( srcv(jpr_phioc)%laction .AND. ln_phioc ) phioc(:,:) = frcv(jpr_phioc)%z3(:,:,1)
1413	!
1414	! ! ========================= !
1415	! ! Bernoulli head !
1416	! ! ========================= !
1417	IF( srcv(jpr_bhd)%laction .AND. ln_bern_srfc ) bhd_wave(:,:) = frcv(jpr_bhd)%z3(:,:,1)
1418	!
1419	! ! ========================= !
1420	! ! Stokes transport u dir !
1421	! ! ========================= !
1422	IF( srcv(jpr_tusd)%laction .AND. ln_breivikFV_2016 ) tusd(:,:) = frcv(jpr_tusd)%z3(:,:,1)
1423	!
1424	! ! ========================= !
1425	! ! Stokes transport v dir !
1426	! ! ========================= !
1427	IF( srcv(jpr_tvsd)%laction .AND. ln_breivikFV_2016 ) tvsd(:,:) = frcv(jpr_tvsd)%z3(:,:,1)
1428	!
1429	! Fields received by SAS when OASIS coupling
1430	! (arrays no more filled at sbcssm stage)
1431	! ! ================== !
1432	! ! SSS !
1433	! ! ================== !
1434	IF( srcv(jpr_soce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1435	sss_m(:,:) = frcv(jpr_soce)%z3(:,:,1)
1436	CALL iom_put( 'sss_m', sss_m )
1437	ENDIF
1438	!
1439	! ! ================== !
1440	! ! SST !
1441	! ! ================== !
1442	IF( srcv(jpr_toce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1443	sst_m(:,:) = frcv(jpr_toce)%z3(:,:,1)
1444	IF( srcv(jpr_soce)%laction .AND. l_useCT ) THEN ! make sure that sst_m is the potential temperature
1445	sst_m(:,:) = eos_pt_from_ct( sst_m(:,:), sss_m(:,:) )
1446	ENDIF
1447	ENDIF
1448	! ! ================== !
1449	! ! SSH !
1450	! ! ================== !
1451	IF( srcv(jpr_ssh )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1452	ssh_m(:,:) = frcv(jpr_ssh )%z3(:,:,1)
1453	CALL iom_put( 'ssh_m', ssh_m )
1454	ENDIF
1455	! ! ================== !
1456	! ! surface currents !
1457	! ! ================== !
1458	IF( srcv(jpr_ocx1)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1459	ssu_m(:,:) = frcv(jpr_ocx1)%z3(:,:,1)
1460	uu(:,:,1,Kbb) = ssu_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1461	uu(:,:,1,Kmm) = ssu_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1462	CALL iom_put( 'ssu_m', ssu_m )
1463	ENDIF
1464	IF( srcv(jpr_ocy1)%laction ) THEN
1465	ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
1466	vv(:,:,1,Kbb) = ssv_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1467	vv(:,:,1,Kmm) = ssv_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1468	CALL iom_put( 'ssv_m', ssv_m )
1469	ENDIF
1470	! ! ======================== !
1471	! ! first T level thickness !
1472	! ! ======================== !
1473	IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1474	e3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
1475	CALL iom_put( 'e3t_m', e3t_m(:,:) )
1476	ENDIF
1477	! ! ================================ !
1478	! ! fraction of solar net radiation !
1479	! ! ================================ !
1480	IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1481	frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
1482	CALL iom_put( 'frq_m', frq_m )
1483	ENDIF
1484
1485	! ! ========================= !
1486	IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
1487	! ! ========================= !
1488	!
1489	! ! total freshwater fluxes over the ocean (emp)
1490	IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
1491	SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
1492	CASE( 'conservative' )
1493	zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
1494	CASE( 'oce only', 'oce and ice' )
1495	zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
1496	CASE default
1497	CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
1498	END SELECT
1499	ELSE
1500	zemp(:,:) = 0._wp
1501	ENDIF
1502	!
1503	! ! runoffs and calving (added in emp)
1504	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1505	IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
1506
1507	IF( srcv(jpr_icb)%laction ) THEN
1508	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1509	rnf(:,:) = rnf(:,:) + fwficb(:,:) ! iceberg added to runfofs
1510	ENDIF
1511	!
1512	! ice shelf fwf
1513	IF( srcv(jpr_isf)%laction ) THEN
1514	fwfisf_oasis(:,:) = - frcv(jpr_isf)%z3(:,:,1) ! fresh water flux from the isf (fwfisf <0 mean melting)
1515	END IF
1516
1517	IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
1518	ELSE ; emp(:,:) = zemp(:,:)
1519	ENDIF
1520	!
1521	! ! non solar heat flux over the ocean (qns)
1522	IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1523	ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1524	ELSE ; zqns(:,:) = 0._wp
1525	ENDIF
1526	! update qns over the free ocean with:
1527	IF( nn_components /= jp_iam_opa ) THEN
1528	zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
1529	IF( srcv(jpr_snow )%laction ) THEN
1530	zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * rLfus ! energy for melting solid precipitation over the free ocean
1531	ENDIF
1532	ENDIF
1533	!
1534	IF( srcv(jpr_icb)%laction ) zqns(:,:) = zqns(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove heat content associated to iceberg melting
1535	!
1536	IF( ln_mixcpl ) THEN ; qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
1537	ELSE ; qns(:,:) = zqns(:,:)
1538	ENDIF
1539
1540	! ! solar flux over the ocean (qsr)
1541	IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
1542	ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
1543	ELSE ; zqsr(:,:) = 0._wp
1544	ENDIF
1545	IF( ln_dm2dc .AND. ln_cpl ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
1546	IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
1547	ELSE ; qsr(:,:) = zqsr(:,:)
1548	ENDIF
1549	!
1550	! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
1551	IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
1552	! Ice cover (received by opa in case of opa <-> sas coupling)
1553	IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
1554	!
1555	ENDIF
1556	!
1557	END SUBROUTINE sbc_cpl_rcv
1558
1559
1560	SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
1561	!!----------------------------------------------------------------------
1562	!! * ROUTINE sbc_cpl_ice_tau *
1563	!!
1564	!! ** Purpose : provide the stress over sea-ice in coupled mode
1565	!!
1566	!! ** Method : transform the received stress from the atmosphere into
1567	!! an atmosphere-ice stress in the (i,j) ocean referencial
1568	!! and at the velocity point of the sea-ice model:
1569	!! 'C'-grid : i- (j-) components given at U- (V-) point
1570	!!
1571	!! The received stress are :
1572	!! - defined by 3 components (if cartesian coordinate)
1573	!! or by 2 components (if spherical)
1574	!! - oriented along geographical coordinate (if eastward-northward)
1575	!! or along the local grid coordinate (if local grid)
1576	!! - given at U- and V-point, resp. if received on 2 grids
1577	!! or at a same point (T or I) if received on 1 grid
1578	!! Therefore and if necessary, they are successively
1579	!! processed in order to obtain them
1580	!! first as 2 components on the sphere
1581	!! second as 2 components oriented along the local grid
1582	!! third as 2 components on the ice grid point
1583	!!
1584	!! Except in 'oce and ice' case, only one vector stress field
1585	!! is received. It has already been processed in sbc_cpl_rcv
1586	!! so that it is now defined as (i,j) components given at U-
1587	!! and V-points, respectively.
1588	!!
1589	!! ** Action : return ptau_i, ptau_j, the stress over the ice
1590	!!----------------------------------------------------------------------
1591	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
1592	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
1593	!!
1594	INTEGER :: ji, jj ! dummy loop indices
1595	INTEGER :: itx ! index of taux over ice
1596	REAL(wp) :: zztmp1, zztmp2
1597	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty
1598	!!----------------------------------------------------------------------
1599	!
1600	IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
1601	ELSE ; itx = jpr_otx1
1602	ENDIF
1603
1604	! do something only if we just received the stress from atmosphere
1605	IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
1606	! ! ======================= !
1607	IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
1608	! ! ======================= !
1609	!
1610	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1611	! ! (cartesian to spherical -> 3 to 2 components)
1612	CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
1613	& srcv(jpr_itx1)%clgrid, ztx, zty )
1614	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1615	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1616	!
1617	IF( srcv(jpr_itx2)%laction ) THEN
1618	CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
1619	& srcv(jpr_itx2)%clgrid, ztx, zty )
1620	frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1621	frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1622	ENDIF
1623	!
1624	ENDIF
1625	!
1626	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1627	! ! (geographical to local grid -> rotate the components)
1628	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
1629	IF( srcv(jpr_itx2)%laction ) THEN
1630	CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
1631	ELSE
1632	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
1633	ENDIF
1634	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1635	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
1636	ENDIF
1637	! ! ======================= !
1638	ELSE ! use ocean stress !
1639	! ! ======================= !
1640	frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
1641	frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
1642	!
1643	ENDIF
1644	! ! ======================= !
1645	! ! put on ice grid !
1646	! ! ======================= !
1647	!
1648	! j+1 j -----V---F
1649	! ice stress on ice velocity point ! \|
1650	! (C-grid ==>(U,V)) j \| T U
1651	! \| \|
1652	! j j-1 -I-------\|
1653	! (for I) \| \|
1654	! i-1 i i
1655	! i i+1 (for I)
1656	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1657	CASE( 'U' )
1658	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
1659	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1660	CASE( 'T' )
1661	DO_2D( 0, 0, 0, 0 ) ! T ==> (U,V)
1662	! take care of the land-sea mask to avoid "pollution" of coastal stress. p[uv]taui used in frazil and rheology
1663	zztmp1 = 0.5_wp * ( 2. - umask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji+1,jj ,1) )
1664	zztmp2 = 0.5_wp * ( 2. - vmask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji ,jj+1,1) )
1665	p_taui(ji,jj) = zztmp1 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
1666	p_tauj(ji,jj) = zztmp2 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
1667	END_2D
1668	CALL lbc_lnk_multi( 'sbccpl', p_taui, 'U', -1., p_tauj, 'V', -1. )
1669	END SELECT
1670
1671	ENDIF
1672	!
1673	END SUBROUTINE sbc_cpl_ice_tau
1674
1675
1676	SUBROUTINE sbc_cpl_ice_flx( picefr, palbi, psst, pist, phs, phi )
1677	!!----------------------------------------------------------------------
1678	!! * ROUTINE sbc_cpl_ice_flx *
1679	!!
1680	!! ** Purpose : provide the heat and freshwater fluxes of the ocean-ice system
1681	!!
1682	!! ** Method : transform the fields received from the atmosphere into
1683	!! surface heat and fresh water boundary condition for the
1684	!! ice-ocean system. The following fields are provided:
1685	!! * total non solar, solar and freshwater fluxes (qns_tot,
1686	!! qsr_tot and emp_tot) (total means weighted ice-ocean flux)
1687	!! NB: emp_tot include runoffs and calving.
1688	!! * fluxes over ice (qns_ice, qsr_ice, emp_ice) where
1689	!! emp_ice = sublimation - solid precipitation as liquid
1690	!! precipitation are re-routed directly to the ocean and
1691	!! calving directly enter the ocean (runoffs are read but included in trasbc.F90)
1692	!! * solid precipitation (sprecip), used to add to qns_tot
1693	!! the heat lost associated to melting solid precipitation
1694	!! over the ocean fraction.
1695	!! * heat content of rain, snow and evap can also be provided,
1696	!! otherwise heat flux associated with these mass flux are
1697	!! guessed (qemp_oce, qemp_ice)
1698	!!
1699	!! - the fluxes have been separated from the stress as
1700	!! (a) they are updated at each ice time step compare to
1701	!! an update at each coupled time step for the stress, and
1702	!! (b) the conservative computation of the fluxes over the
1703	!! sea-ice area requires the knowledge of the ice fraction
1704	!! after the ice advection and before the ice thermodynamics,
1705	!! so that the stress is updated before the ice dynamics
1706	!! while the fluxes are updated after it.
1707	!!
1708	!! ** Details
1709	!! qns_tot = (1-a) * qns_oce + a * qns_ice => provided
1710	!! + qemp_oce + qemp_ice => recalculated and added up to qns
1711	!!
1712	!! qsr_tot = (1-a) * qsr_oce + a * qsr_ice => provided
1713	!!
1714	!! emp_tot = emp_oce + emp_ice => calving is provided and added to emp_tot (and emp_oce).
1715	!! runoff (which includes rivers+icebergs) and iceshelf
1716	!! are provided but not included in emp here. Only runoff will
1717	!! be included in emp in other parts of NEMO code
1718	!! ** Action : update at each nf_ice time step:
1719	!! qns_tot, qsr_tot non-solar and solar total heat fluxes
1720	!! qns_ice, qsr_ice non-solar and solar heat fluxes over the ice
1721	!! emp_tot total evaporation - precipitation(liquid and solid) (-calving)
1722	!! emp_ice ice sublimation - solid precipitation over the ice
1723	!! dqns_ice d(non-solar heat flux)/d(Temperature) over the ice
1724	!! sprecip solid precipitation over the ocean
1725	!!----------------------------------------------------------------------
1726	REAL(wp), INTENT(in) , DIMENSION(:,:) :: picefr ! ice fraction [0 to 1]
1727	! !! ! optional arguments, used only in 'mixed oce-ice' case or for Met-Office coupling
1728	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: palbi ! all skies ice albedo
1729	REAL(wp), INTENT(in) , DIMENSION(:,: ), OPTIONAL :: psst ! sea surface temperature [Celsius]
1730	REAL(wp), INTENT(inout), DIMENSION(:,:,:), OPTIONAL :: pist ! ice surface temperature [Kelvin] => inout for Met-Office
1731	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: phs ! snow depth [m]
1732	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: phi ! ice thickness [m]
1733	!
1734	INTEGER :: ji, jj, jl ! dummy loop index
1735	REAL(wp), DIMENSION(jpi,jpj) :: zcptn, zcptrain, zcptsnw, ziceld, zmsk, zsnw
1736	REAL(wp), DIMENSION(jpi,jpj) :: zemp_tot, zemp_ice, zemp_oce, ztprecip, zsprecip , zevap_oce, zdevap_ice
1737	REAL(wp), DIMENSION(jpi,jpj) :: zqns_tot, zqns_oce, zqsr_tot, zqsr_oce, zqprec_ice, zqemp_oce, zqemp_ice
1738	REAL(wp), DIMENSION(jpi,jpj) :: zevap_ice_total
1739	REAL(wp), DIMENSION(jpi,jpj,jpl) :: zqns_ice, zqsr_ice, zdqns_ice, zqevap_ice, zevap_ice, zqtr_ice_top, ztsu
1740	REAL(wp), DIMENSION(jpi,jpj) :: ztri
1741	!!----------------------------------------------------------------------
1742	!
1743	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1744	ziceld(:,:) = 1._wp - picefr(:,:)
1745	zcptn (:,:) = rcp * sst_m(:,:)
1746	!
1747	! ! ========================= !
1748	! ! freshwater budget ! (emp_tot)
1749	! ! ========================= !
1750	!
1751	! ! solid Precipitation (sprecip)
1752	! ! liquid + solid Precipitation (tprecip)
1753	! ! total Evaporation - total Precipitation (emp_tot)
1754	! ! sublimation - solid precipitation (cell average) (emp_ice)
1755	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
1756	CASE( 'conservative' ) ! received fields: jpr_rain, jpr_snow, jpr_ievp, jpr_tevp
1757	zsprecip(:,:) = frcv(jpr_snow)%z3(:,:,1) ! May need to ensure positive here
1758	ztprecip(:,:) = frcv(jpr_rain)%z3(:,:,1) + zsprecip(:,:) ! May need to ensure positive here
1759	zemp_tot(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ztprecip(:,:)
1760	CASE( 'oce and ice' ) ! received fields: jpr_sbpr, jpr_semp, jpr_oemp, jpr_ievp
1761	zemp_tot(:,:) = ziceld(:,:) * frcv(jpr_oemp)%z3(:,:,1) + picefr(:,:) * frcv(jpr_sbpr)%z3(:,:,1)
1762	zemp_ice(:,:) = frcv(jpr_semp)%z3(:,:,1) * picefr(:,:)
1763	zsprecip(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_semp)%z3(:,:,1)
1764	ztprecip(:,:) = frcv(jpr_semp)%z3(:,:,1) - frcv(jpr_sbpr)%z3(:,:,1) + zsprecip(:,:)
1765	CASE( 'none' ) ! Not available as for now: needs additional coding below when computing zevap_oce
1766	! ! since fields received are not defined with none option
1767	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_emp value in namelist namsbc_cpl' )
1768	END SELECT
1769
1770	#if defined key_si3
1771
1772	! --- evaporation over ice (kg/m2/s) --- !
1773	IF (ln_scale_ice_flux) THEN ! typically met-office requirements
1774	IF (sn_rcv_emp%clcat == 'yes') THEN
1775	WHERE( a_i(:,:,:) > 1.e-10 ) ; zevap_ice(:,:,:) = frcv(jpr_ievp)%z3(:,:,:) * a_i_last_couple(:,:,:) / a_i(:,:,:)
1776	ELSEWHERE ; zevap_ice(:,:,:) = 0._wp
1777	END WHERE
1778	WHERE( picefr(:,:) > 1.e-10 ) ; zevap_ice_total(:,:) = SUM( zevap_ice(:,:,:) * a_i(:,:,:), dim=3 ) / picefr(:,:)
1779	ELSEWHERE ; zevap_ice_total(:,:) = 0._wp
1780	END WHERE
1781	ELSE
1782	WHERE( picefr(:,:) > 1.e-10 ) ; zevap_ice(:,:,1) = frcv(jpr_ievp)%z3(:,:,1) * SUM( a_i_last_couple, dim=3 ) / picefr(:,:)
1783	ELSEWHERE ; zevap_ice(:,:,1) = 0._wp
1784	END WHERE
1785	zevap_ice_total(:,:) = zevap_ice(:,:,1)
1786	DO jl = 2, jpl
1787	zevap_ice(:,:,jl) = zevap_ice(:,:,1)
1788	ENDDO
1789	ENDIF
1790	ELSE
1791	IF (sn_rcv_emp%clcat == 'yes') THEN
1792	zevap_ice(:,:,1:jpl) = frcv(jpr_ievp)%z3(:,:,1:jpl)
1793	WHERE( picefr(:,:) > 1.e-10 ) ; zevap_ice_total(:,:) = SUM( zevap_ice(:,:,:) * a_i(:,:,:), dim=3 ) / picefr(:,:)
1794	ELSEWHERE ; zevap_ice_total(:,:) = 0._wp
1795	END WHERE
1796	ELSE
1797	zevap_ice(:,:,1) = frcv(jpr_ievp)%z3(:,:,1)
1798	zevap_ice_total(:,:) = zevap_ice(:,:,1)
1799	DO jl = 2, jpl
1800	zevap_ice(:,:,jl) = zevap_ice(:,:,1)
1801	ENDDO
1802	ENDIF
1803	ENDIF
1804
1805	IF ( TRIM( sn_rcv_emp%cldes ) == 'conservative' ) THEN
1806	! For conservative case zemp_ice has not been defined yet. Do it now.
1807	zemp_ice(:,:) = zevap_ice_total(:,:) * picefr(:,:) - frcv(jpr_snow)%z3(:,:,1) * picefr(:,:)
1808	ENDIF
1809
1810	! zsnw = snow fraction over ice after wind blowing (=picefr if no blowing)
1811	zsnw(:,:) = 0._wp ; CALL ice_var_snwblow( ziceld, zsnw )
1812
1813	! --- evaporation minus precipitation corrected (because of wind blowing on snow) --- !
1814	zemp_ice(:,:) = zemp_ice(:,:) + zsprecip(:,:) * ( picefr(:,:) - zsnw(:,:) ) ! emp_ice = A * sublimation - zsnw * sprecip
1815	zemp_oce(:,:) = zemp_tot(:,:) - zemp_ice(:,:) ! emp_oce = emp_tot - emp_ice
1816
1817	! --- evaporation over ocean (used later for qemp) --- !
1818	zevap_oce(:,:) = frcv(jpr_tevp)%z3(:,:,1) - zevap_ice_total(:,:) * picefr(:,:)
1819
1820	! since the sensitivity of evap to temperature (devap/dT) is not prescribed by the atmosphere, we set it to 0
1821	! therefore, sublimation is not redistributed over the ice categories when no subgrid scale fluxes are provided by atm.
1822	zdevap_ice(:,:) = 0._wp
1823
1824	! --- Continental fluxes --- !
1825	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1826	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1827	ENDIF
1828	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot and emp_oce)
1829	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1830	zemp_oce(:,:) = zemp_oce(:,:) - frcv(jpr_cal)%z3(:,:,1)
1831	ENDIF
1832	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1833	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1834	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1835	ENDIF
1836	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1837	fwfisf_oasis(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1838	ENDIF
1839
1840	IF( ln_mixcpl ) THEN
1841	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1842	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1843	emp_oce(:,:) = emp_oce(:,:) * xcplmask(:,:,0) + zemp_oce(:,:) * zmsk(:,:)
1844	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1845	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1846	DO jl = 1, jpl
1847	evap_ice (:,:,jl) = evap_ice (:,:,jl) * xcplmask(:,:,0) + zevap_ice (:,:,jl) * zmsk(:,:)
1848	devap_ice(:,:,jl) = devap_ice(:,:,jl) * xcplmask(:,:,0) + zdevap_ice(:,:) * zmsk(:,:)
1849	END DO
1850	ELSE
1851	emp_tot (:,:) = zemp_tot (:,:)
1852	emp_ice (:,:) = zemp_ice (:,:)
1853	emp_oce (:,:) = zemp_oce (:,:)
1854	sprecip (:,:) = zsprecip (:,:)
1855	tprecip (:,:) = ztprecip (:,:)
1856	evap_ice(:,:,:) = zevap_ice(:,:,:)
1857	DO jl = 1, jpl
1858	devap_ice(:,:,jl) = zdevap_ice(:,:)
1859	END DO
1860	ENDIF
1861
1862	#else
1863	zsnw(:,:) = picefr(:,:)
1864	! --- Continental fluxes --- !
1865	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1866	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1867	ENDIF
1868	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot)
1869	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1870	ENDIF
1871	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1872	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1873	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1874	ENDIF
1875	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1876	fwfisf_oasis(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1877	ENDIF
1878	!
1879	IF( ln_mixcpl ) THEN
1880	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1881	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1882	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1883	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1884	ELSE
1885	emp_tot(:,:) = zemp_tot(:,:)
1886	emp_ice(:,:) = zemp_ice(:,:)
1887	sprecip(:,:) = zsprecip(:,:)
1888	tprecip(:,:) = ztprecip(:,:)
1889	ENDIF
1890	!
1891	#endif
1892
1893	! outputs
1894	!! IF( srcv(jpr_rnf)%laction ) CALL iom_put( 'runoffs' , rnf(:,:) * tmask(:,:,1) ) ! runoff
1895	!! IF( srcv(jpr_isf)%laction ) CALL iom_put( 'iceshelf_cea', -fwfisf(:,:) * tmask(:,:,1) ) ! iceshelf
1896	IF( srcv(jpr_cal)%laction ) CALL iom_put( 'calving_cea' , frcv(jpr_cal)%z3(:,:,1) * tmask(:,:,1) ) ! calving
1897	IF( srcv(jpr_icb)%laction ) CALL iom_put( 'iceberg_cea' , frcv(jpr_icb)%z3(:,:,1) * tmask(:,:,1) ) ! icebergs
1898	IF( iom_use('snowpre') ) CALL iom_put( 'snowpre' , sprecip(:,:) ) ! Snow
1899	IF( iom_use('precip') ) CALL iom_put( 'precip' , tprecip(:,:) ) ! total precipitation
1900	IF( iom_use('rain') ) CALL iom_put( 'rain' , tprecip(:,:) - sprecip(:,:) ) ! liquid precipitation
1901	IF( iom_use('snow_ao_cea') ) CALL iom_put( 'snow_ao_cea' , sprecip(:,:) * ( 1._wp - zsnw(:,:) ) ) ! Snow over ice-free ocean (cell average)
1902	IF( iom_use('snow_ai_cea') ) CALL iom_put( 'snow_ai_cea' , sprecip(:,:) * zsnw(:,:) ) ! Snow over sea-ice (cell average)
1903	IF( iom_use('rain_ao_cea') ) CALL iom_put( 'rain_ao_cea' , ( tprecip(:,:) - sprecip(:,:) ) * picefr(:,:) ) ! liquid precipitation over ocean (cell average)
1904	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)
1905	IF( iom_use('evap_ao_cea') ) CALL iom_put( 'evap_ao_cea' , ( frcv(jpr_tevp)%z3(:,:,1) &
1906	& - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) ) * tmask(:,:,1) ) ! ice-free oce evap (cell average)
1907	! note: runoff output is done in sbcrnf (which includes icebergs too) and iceshelf output is done in sbcisf
1908	!
1909	! ! ========================= !
1910	SELECT CASE( TRIM( sn_rcv_qns%cldes ) ) ! non solar heat fluxes ! (qns)
1911	! ! ========================= !
1912	CASE( 'oce only' ) ! the required field is directly provided
1913	zqns_tot(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1914	! For Met Office sea ice non-solar fluxes are already delt with by JULES so setting to zero
1915	! here so the only flux is the ocean only one.
1916	zqns_ice(:,:,:) = 0._wp
1917	CASE( 'conservative' ) ! the required fields are directly provided
1918	zqns_tot(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1919	IF( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1920	zqns_ice(:,:,1:jpl) = frcv(jpr_qnsice)%z3(:,:,1:jpl)
1921	ELSE
1922	DO jl = 1, jpl
1923	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1) ! Set all category values equal
1924	END DO
1925	ENDIF
1926	CASE( 'oce and ice' ) ! the total flux is computed from ocean and ice fluxes
1927	zqns_tot(:,:) = ziceld(:,:) * frcv(jpr_qnsoce)%z3(:,:,1)
1928	IF( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1929	DO jl=1,jpl
1930	zqns_tot(:,: ) = zqns_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qnsice)%z3(:,:,jl)
1931	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,jl)
1932	ENDDO
1933	ELSE
1934	zqns_tot(:,:) = zqns_tot(:,:) + picefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1935	DO jl = 1, jpl
1936	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1937	END DO
1938	ENDIF
1939	CASE( 'mixed oce-ice' ) ! the ice flux is cumputed from the total flux, the SST and ice informations
1940	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1941	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1942	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1943	DO jl = 1, jpl
1944	zqns_ice(:,:,jl) = frcv(jpr_qnsmix)%z3(:,:,jl) &
1945	& + frcv(jpr_dqnsdt)%z3(:,:,jl) * ( pist(:,:,jl) - ( ( rt0 + psst(:,:) ) * ziceld(:,:) &
1946	& + pist(:,:,jl) * picefr(:,:) ) )
1947	END DO
1948	ELSE
1949	DO jl = 1, jpl
1950	zqns_ice(:,:,jl) = frcv(jpr_qnsmix)%z3(:,:, 1) &
1951	& + frcv(jpr_dqnsdt)%z3(:,:, 1) * ( pist(:,:,jl) - ( ( rt0 + psst(:,:) ) * ziceld(:,:) &
1952	& + pist(:,:,jl) * picefr(:,:) ) )
1953	END DO
1954	ENDIF
1955	END SELECT
1956	!
1957	! --- calving (removed from qns_tot) --- !
1958	IF( srcv(jpr_cal)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_cal)%z3(:,:,1) * rLfus ! remove latent heat of calving
1959	! we suppose it melts at 0deg, though it should be temp. of surrounding ocean
1960	! --- iceberg (removed from qns_tot) --- !
1961	IF( srcv(jpr_icb)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove latent heat of iceberg melting
1962
1963	#if defined key_si3
1964	! --- non solar flux over ocean --- !
1965	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
1966	zqns_oce = 0._wp
1967	WHERE( ziceld /= 0._wp ) zqns_oce(:,:) = ( zqns_tot(:,:) - SUM( a_i * zqns_ice, dim=3 ) ) / ziceld(:,:)
1968
1969	! Heat content per unit mass of snow (J/kg)
1970	WHERE( SUM( a_i, dim=3 ) > 1.e-10 ) ; zcptsnw(:,:) = rcpi * SUM( (tn_ice - rt0) * a_i, dim=3 ) / SUM( a_i, dim=3 )
1971	ELSEWHERE ; zcptsnw(:,:) = zcptn(:,:)
1972	ENDWHERE
1973	! Heat content per unit mass of rain (J/kg)
1974	zcptrain(:,:) = rcp * ( SUM( (tn_ice(:,:,:) - rt0) * a_i(:,:,:), dim=3 ) + sst_m(:,:) * ziceld(:,:) )
1975
1976	! --- enthalpy of snow precip over ice in J/m3 (to be used in 1D-thermo) --- !
1977	zqprec_ice(:,:) = rhos * ( zcptsnw(:,:) - rLfus )
1978
1979	! --- heat content of evap over ice in W/m2 (to be used in 1D-thermo) --- !
1980	DO jl = 1, jpl
1981	zqevap_ice(:,:,jl) = 0._wp ! should be -evap * ( ( Tice - rt0 ) * rcpi ) but atm. does not take it into account
1982	END DO
1983
1984	! --- heat flux associated with emp (W/m2) --- !
1985	zqemp_oce(:,:) = - zevap_oce(:,:) * zcptn (:,:) & ! evap
1986	& + ( ztprecip(:,:) - zsprecip(:,:) ) * zcptrain(:,:) & ! liquid precip
1987	& + zsprecip(:,:) * ( 1._wp - zsnw ) * ( zcptsnw (:,:) - rLfus ) ! solid precip over ocean + snow melting
1988	zqemp_ice(:,:) = zsprecip(:,:) * zsnw * ( zcptsnw (:,:) - rLfus ) ! solid precip over ice (qevap_ice=0 since atm. does not take it into account)
1989	!! zqemp_ice(:,:) = - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) * zcptsnw (:,:) & ! ice evap
1990	!! & + zsprecip(:,:) * zsnw * zqprec_ice(:,:) * r1_rhos ! solid precip over ice
1991
1992	! --- total non solar flux (including evap/precip) --- !
1993	zqns_tot(:,:) = zqns_tot(:,:) + zqemp_ice(:,:) + zqemp_oce(:,:)
1994
1995	! --- in case both coupled/forced are active, we must mix values --- !
1996	IF( ln_mixcpl ) THEN
1997	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1998	qns_oce(:,:) = qns_oce(:,:) * xcplmask(:,:,0) + zqns_oce(:,:)* zmsk(:,:)
1999	DO jl=1,jpl
2000	qns_ice (:,:,jl) = qns_ice (:,:,jl) * xcplmask(:,:,0) + zqns_ice (:,:,jl)* zmsk(:,:)
2001	qevap_ice(:,:,jl) = qevap_ice(:,:,jl) * xcplmask(:,:,0) + zqevap_ice(:,:,jl)* zmsk(:,:)
2002	ENDDO
2003	qprec_ice(:,:) = qprec_ice(:,:) * xcplmask(:,:,0) + zqprec_ice(:,:)* zmsk(:,:)
2004	qemp_oce (:,:) = qemp_oce(:,:) * xcplmask(:,:,0) + zqemp_oce(:,:)* zmsk(:,:)
2005	qemp_ice (:,:) = qemp_ice(:,:) * xcplmask(:,:,0) + zqemp_ice(:,:)* zmsk(:,:)
2006	ELSE
2007	qns_tot (:,: ) = zqns_tot (:,: )
2008	qns_oce (:,: ) = zqns_oce (:,: )
2009	qns_ice (:,:,:) = zqns_ice (:,:,:)
2010	qevap_ice(:,:,:) = zqevap_ice(:,:,:)
2011	qprec_ice(:,: ) = zqprec_ice(:,: )
2012	qemp_oce (:,: ) = zqemp_oce (:,: )
2013	qemp_ice (:,: ) = zqemp_ice (:,: )
2014	ENDIF
2015
2016	#else
2017	zcptsnw (:,:) = zcptn(:,:)
2018	zcptrain(:,:) = zcptn(:,:)
2019
2020	! clem: this formulation is certainly wrong... but better than it was...
2021	zqns_tot(:,:) = zqns_tot(:,:) & ! zqns_tot update over free ocean with:
2022	& - ( ziceld(:,:) * zsprecip(:,:) * rLfus ) & ! remove the latent heat flux of solid precip. melting
2023	& - ( zemp_tot(:,:) & ! remove the heat content of mass flux (assumed to be at SST)
2024	& - zemp_ice(:,:) ) * zcptn(:,:)
2025
2026	IF( ln_mixcpl ) THEN
2027	qns_tot(:,:) = qns(:,:) * ziceld(:,:) + SUM( qns_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
2028	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
2029	DO jl=1,jpl
2030	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
2031	ENDDO
2032	ELSE
2033	qns_tot(:,: ) = zqns_tot(:,: )
2034	qns_ice(:,:,:) = zqns_ice(:,:,:)
2035	ENDIF
2036
2037	#endif
2038	! outputs
2039	IF( srcv(jpr_cal)%laction ) CALL iom_put('hflx_cal_cea' , - frcv(jpr_cal)%z3(:,:,1) * rLfus ) ! latent heat from calving
2040	IF( srcv(jpr_icb)%laction ) CALL iom_put('hflx_icb_cea' , - frcv(jpr_icb)%z3(:,:,1) * rLfus ) ! latent heat from icebergs melting
2041	IF( iom_use('hflx_rain_cea') ) CALL iom_put('hflx_rain_cea' , ( tprecip(:,:) - sprecip(:,:) ) * zcptrain(:,:) ) ! heat flux from rain (cell average)
2042	IF( iom_use('hflx_evap_cea') ) CALL iom_put('hflx_evap_cea' , ( frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) &
2043	& * picefr(:,:) ) * zcptn(:,:) * tmask(:,:,1) ) ! heat flux from evap (cell average)
2044	IF( iom_use('hflx_prec_cea') ) CALL iom_put('hflx_prec_cea' , sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) + & ! heat flux from all precip (cell avg)
2045	& ( tprecip(:,:) - sprecip(:,:) ) * zcptrain(:,:) )
2046	IF( iom_use('hflx_snow_cea') ) CALL iom_put('hflx_snow_cea' , sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) ) ! heat flux from snow (cell average)
2047	IF( iom_use('hflx_snow_ao_cea') ) CALL iom_put('hflx_snow_ao_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) &
2048	& * ( 1._wp - zsnw(:,:) ) ) ! heat flux from snow (over ocean)
2049	IF( iom_use('hflx_snow_ai_cea') ) CALL iom_put('hflx_snow_ai_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) &
2050	& * zsnw(:,:) ) ! heat flux from snow (over ice)
2051	! note: hflx for runoff and iceshelf are done in sbcrnf and sbcisf resp.
2052	!
2053	! ! ========================= !
2054	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) ) ! solar heat fluxes ! (qsr)
2055	! ! ========================= !
2056	CASE( 'oce only' )
2057	zqsr_tot(:,: ) = MAX( 0._wp , frcv(jpr_qsroce)%z3(:,:,1) )
2058	! For Met Office sea ice solar fluxes are already delt with by JULES so setting to zero
2059	! here so the only flux is the ocean only one.
2060	zqsr_ice(:,:,:) = 0._wp
2061	CASE( 'conservative' )
2062	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
2063	IF( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2064	zqsr_ice(:,:,1:jpl) = frcv(jpr_qsrice)%z3(:,:,1:jpl)
2065	ELSE
2066	! Set all category values equal for the moment
2067	DO jl = 1, jpl
2068	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
2069	END DO
2070	ENDIF
2071	CASE( 'oce and ice' )
2072	zqsr_tot(:,: ) = ziceld(:,:) * frcv(jpr_qsroce)%z3(:,:,1)
2073	IF( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2074	DO jl = 1, jpl
2075	zqsr_tot(:,: ) = zqsr_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qsrice)%z3(:,:,jl)
2076	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,jl)
2077	END DO
2078	ELSE
2079	zqsr_tot(:,:) = zqsr_tot(:,:) + picefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
2080	DO jl = 1, jpl
2081	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
2082	END DO
2083	ENDIF
2084	CASE( 'mixed oce-ice' )
2085	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
2086	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
2087	! Create solar heat flux over ice using incoming solar heat flux and albedos
2088	! ( see OASIS3 user guide, 5th edition, p39 )
2089	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2090	DO jl = 1, jpl
2091	zqsr_ice(:,:,jl) = frcv(jpr_qsrmix)%z3(:,:,jl) * ( 1.- palbi(:,:,jl) ) &
2092	& / ( 1.- ( alb_oce_mix(:,: ) * ziceld(:,:) &
2093	& + palbi (:,:,jl) * picefr(:,:) ) )
2094	END DO
2095	ELSE
2096	DO jl = 1, jpl
2097	zqsr_ice(:,:,jl) = frcv(jpr_qsrmix)%z3(:,:, 1) * ( 1.- palbi(:,:,jl) ) &
2098	& / ( 1.- ( alb_oce_mix(:,: ) * ziceld(:,:) &
2099	& + palbi (:,:,jl) * picefr(:,:) ) )
2100	END DO
2101	ENDIF
2102	CASE( 'none' ) ! Not available as for now: needs additional coding
2103	! ! since fields received, here zqsr_tot, are not defined with none option
2104	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_qsr value in namelist namsbc_cpl' )
2105	END SELECT
2106	IF( ln_dm2dc .AND. ln_cpl ) THEN ! modify qsr to include the diurnal cycle
2107	zqsr_tot(:,: ) = sbc_dcy( zqsr_tot(:,: ) )
2108	DO jl = 1, jpl
2109	zqsr_ice(:,:,jl) = sbc_dcy( zqsr_ice(:,:,jl) )
2110	END DO
2111	ENDIF
2112
2113	#if defined key_si3
2114	! --- solar flux over ocean --- !
2115	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
2116	zqsr_oce = 0._wp
2117	WHERE( ziceld /= 0._wp ) zqsr_oce(:,:) = ( zqsr_tot(:,:) - SUM( a_i * zqsr_ice, dim=3 ) ) / ziceld(:,:)
2118
2119	IF( ln_mixcpl ) THEN ; qsr_oce(:,:) = qsr_oce(:,:) * xcplmask(:,:,0) + zqsr_oce(:,:)* zmsk(:,:)
2120	ELSE ; qsr_oce(:,:) = zqsr_oce(:,:) ; ENDIF
2121	#endif
2122
2123	IF( ln_mixcpl ) THEN
2124	qsr_tot(:,:) = qsr(:,:) * ziceld(:,:) + SUM( qsr_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
2125	qsr_tot(:,:) = qsr_tot(:,:) * xcplmask(:,:,0) + zqsr_tot(:,:)* zmsk(:,:)
2126	DO jl = 1, jpl
2127	qsr_ice(:,:,jl) = qsr_ice(:,:,jl) * xcplmask(:,:,0) + zqsr_ice(:,:,jl)* zmsk(:,:)
2128	END DO
2129	ELSE
2130	qsr_tot(:,: ) = zqsr_tot(:,: )
2131	qsr_ice(:,:,:) = zqsr_ice(:,:,:)
2132	ENDIF
2133
2134	! ! ========================= !
2135	SELECT CASE( TRIM( sn_rcv_dqnsdt%cldes ) ) ! d(qns)/dt !
2136	! ! ========================= !
2137	CASE ('coupled')
2138	IF( TRIM(sn_rcv_dqnsdt%clcat) == 'yes' ) THEN
2139	zdqns_ice(:,:,1:jpl) = frcv(jpr_dqnsdt)%z3(:,:,1:jpl)
2140	ELSE
2141	! Set all category values equal for the moment
2142	DO jl=1,jpl
2143	zdqns_ice(:,:,jl) = frcv(jpr_dqnsdt)%z3(:,:,1)
2144	ENDDO
2145	ENDIF
2146	CASE( 'none' )
2147	zdqns_ice(:,:,:) = 0._wp
2148	END SELECT
2149
2150	IF( ln_mixcpl ) THEN
2151	DO jl=1,jpl
2152	dqns_ice(:,:,jl) = dqns_ice(:,:,jl) * xcplmask(:,:,0) + zdqns_ice(:,:,jl) * zmsk(:,:)
2153	ENDDO
2154	ELSE
2155	dqns_ice(:,:,:) = zdqns_ice(:,:,:)
2156	ENDIF
2157
2158	#if defined key_si3
2159	! ! ========================= !
2160	SELECT CASE( TRIM( sn_rcv_iceflx%cldes ) ) ! ice topmelt and botmelt !
2161	! ! ========================= !
2162	CASE ('coupled')
2163	IF (ln_scale_ice_flux) THEN
2164	WHERE( a_i(:,:,:) > 1.e-10_wp )
2165	qml_ice(:,:,:) = frcv(jpr_topm)%z3(:,:,:) * a_i_last_couple(:,:,:) / a_i(:,:,:)
2166	qcn_ice(:,:,:) = frcv(jpr_botm)%z3(:,:,:) * a_i_last_couple(:,:,:) / a_i(:,:,:)
2167	ELSEWHERE
2168	qml_ice(:,:,:) = 0.0_wp
2169	qcn_ice(:,:,:) = 0.0_wp
2170	END WHERE
2171	ELSE
2172	qml_ice(:,:,:) = frcv(jpr_topm)%z3(:,:,:)
2173	qcn_ice(:,:,:) = frcv(jpr_botm)%z3(:,:,:)
2174	ENDIF
2175	END SELECT
2176	! ! ========================= !
2177	! ! Transmitted Qsr ! [W/m2]
2178	! ! ========================= !
2179	IF( .NOT.ln_cndflx ) THEN !== No conduction flux as surface forcing ==!
2180	!
2181	IF( nn_qtrice == 0 ) THEN
2182	! formulation derived from Grenfell and Maykut (1977), where transmission rate
2183	! 1) depends on cloudiness
2184	! ! ===> used prescribed cloud fraction representative for polar oceans in summer (0.81)
2185	! ! should be real cloud fraction instead (as in the bulk) but needs to be read from atm.
2186	! 2) is 0 when there is any snow
2187	! 3) tends to 1 for thin ice
2188	ztri(:,:) = 0.18 * ( 1.0 - cloud_fra(:,:) ) + 0.35 * cloud_fra(:,:) ! surface transmission when hi>10cm
2189	DO jl = 1, jpl
2190	WHERE ( phs(:,:,jl) <= 0._wp .AND. phi(:,:,jl) < 0.1_wp ) ! linear decrease from hi=0 to 10cm
2191	zqtr_ice_top(:,:,jl) = zqsr_ice(:,:,jl) * ( ztri(:,:) + ( 1._wp - ztri(:,:) ) * ( 1._wp - phi(:,:,jl) * 10._wp ) )
2192	ELSEWHERE( phs(:,:,jl) <= 0._wp .AND. phi(:,:,jl) >= 0.1_wp ) ! constant (ztri) when hi>10cm
2193	zqtr_ice_top(:,:,jl) = zqsr_ice(:,:,jl) * ztri(:,:)
2194	ELSEWHERE ! zero when hs>0
2195	zqtr_ice_top(:,:,jl) = 0._wp
2196	END WHERE
2197	ENDDO
2198	ELSEIF( nn_qtrice == 1 ) THEN
2199	! formulation is derived from the thesis of M. Lebrun (2019).
2200	! It represents the best fit using several sets of observations
2201	! It comes with snow conductivities adapted to freezing/melting conditions (see icethd_zdf_bl99.F90)
2202	zqtr_ice_top(:,:,:) = 0.3_wp * zqsr_ice(:,:,:)
2203	ENDIF
2204	!
2205	ELSEIF( ln_cndflx .AND. .NOT.ln_cndemulate ) THEN !== conduction flux as surface forcing ==!
2206	!
2207	! ! ===> here we must receive the qtr_ice_top array from the coupler
2208	! for now just assume zero (fully opaque ice)
2209	zqtr_ice_top(:,:,:) = 0._wp
2210	!
2211	ENDIF
2212	!
2213	IF( ln_mixcpl ) THEN
2214	DO jl=1,jpl
2215	qtr_ice_top(:,:,jl) = qtr_ice_top(:,:,jl) * xcplmask(:,:,0) + zqtr_ice_top(:,:,jl) * zmsk(:,:)
2216	ENDDO
2217	ELSE
2218	qtr_ice_top(:,:,:) = zqtr_ice_top(:,:,:)
2219	ENDIF
2220	! ! ================== !
2221	! ! ice skin temp. !
2222	! ! ================== !
2223	! needed by Met Office
2224	IF( srcv(jpr_ts_ice)%laction ) THEN
2225	WHERE ( frcv(jpr_ts_ice)%z3(:,:,:) > 0.0 ) ; ztsu(:,:,:) = 0. + rt0
2226	ELSEWHERE( frcv(jpr_ts_ice)%z3(:,:,:) < -60. ) ; ztsu(:,:,:) = -60. + rt0
2227	ELSEWHERE ; ztsu(:,:,:) = frcv(jpr_ts_ice)%z3(:,:,:) + rt0
2228	END WHERE
2229	!
2230	IF( ln_mixcpl ) THEN
2231	DO jl=1,jpl
2232	pist(:,:,jl) = pist(:,:,jl) * xcplmask(:,:,0) + ztsu(:,:,jl) * zmsk(:,:)
2233	ENDDO
2234	ELSE
2235	pist(:,:,:) = ztsu(:,:,:)
2236	ENDIF
2237	!
2238	ENDIF
2239	!
2240	#endif
2241	!
2242	END SUBROUTINE sbc_cpl_ice_flx
2243
2244
2245	SUBROUTINE sbc_cpl_snd( kt, Kbb, Kmm )
2246	!!----------------------------------------------------------------------
2247	!! * ROUTINE sbc_cpl_snd *
2248	!!
2249	!! ** Purpose : provide the ocean-ice informations to the atmosphere
2250	!!
2251	!! ** Method : send to the atmosphere through a call to cpl_snd
2252	!! all the needed fields (as defined in sbc_cpl_init)
2253	!!----------------------------------------------------------------------
2254	INTEGER, INTENT(in) :: kt
2255	INTEGER, INTENT(in) :: Kbb, Kmm ! ocean model time level index
2256	!
2257	INTEGER :: ji, jj, jl ! dummy loop indices
2258	INTEGER :: isec, info ! local integer
2259	REAL(wp) :: zumax, zvmax
2260	REAL(wp), DIMENSION(jpi,jpj) :: zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1
2261	REAL(wp), DIMENSION(jpi,jpj,jpl) :: ztmp3, ztmp4
2262	!!----------------------------------------------------------------------
2263	!
2264	isec = ( kt - nit000 ) * NINT( rn_Dt ) ! date of exchanges
2265	info = OASIS_idle
2266
2267	zfr_l(:,:) = 1.- fr_i(:,:)
2268	! ! ------------------------- !
2269	! ! Surface temperature ! in Kelvin
2270	! ! ------------------------- !
2271	IF( ssnd(jps_toce)%laction .OR. ssnd(jps_tice)%laction .OR. ssnd(jps_tmix)%laction ) THEN
2272
2273	IF( nn_components == jp_iam_opa ) THEN
2274	ztmp1(:,:) = ts(:,:,1,jp_tem,Kmm) ! send temperature as it is (potential or conservative) -> use of l_useCT on the received part
2275	ELSE
2276	! we must send the surface potential temperature
2277	IF( l_useCT ) THEN ; ztmp1(:,:) = eos_pt_from_ct( ts(:,:,1,jp_tem,Kmm), ts(:,:,1,jp_sal,Kmm) )
2278	ELSE ; ztmp1(:,:) = ts(:,:,1,jp_tem,Kmm)
2279	ENDIF
2280	!
2281	SELECT CASE( sn_snd_temp%cldes)
2282	CASE( 'oce only' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2283	CASE( 'oce and ice' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2284	SELECT CASE( sn_snd_temp%clcat )
2285	CASE( 'yes' )
2286	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl)
2287	CASE( 'no' )
2288	WHERE( SUM( a_i, dim=3 ) /= 0. )
2289	ztmp3(:,:,1) = SUM( tn_ice * a_i, dim=3 ) / SUM( a_i, dim=3 )
2290	ELSEWHERE
2291	ztmp3(:,:,1) = rt0
2292	END WHERE
2293	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2294	END SELECT
2295	CASE( 'weighted oce and ice' ) ; ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2296	SELECT CASE( sn_snd_temp%clcat )
2297	CASE( 'yes' )
2298	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2299	CASE( 'no' )
2300	ztmp3(:,:,:) = 0.0
2301	DO jl=1,jpl
2302	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2303	ENDDO
2304	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2305	END SELECT
2306	CASE( 'oce and weighted ice') ; ztmp1(:,:) = ts(:,:,1,jp_tem,Kmm) + rt0
2307	SELECT CASE( sn_snd_temp%clcat )
2308	CASE( 'yes' )
2309	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2310	CASE( 'no' )
2311	ztmp3(:,:,:) = 0.0
2312	DO jl=1,jpl
2313	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2314	ENDDO
2315	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2316	END SELECT
2317	CASE( 'mixed oce-ice' )
2318	ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2319	DO jl=1,jpl
2320	ztmp1(:,:) = ztmp1(:,:) + tn_ice(:,:,jl) * a_i(:,:,jl)
2321	ENDDO
2322	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%cldes' )
2323	END SELECT
2324	ENDIF
2325	IF( ssnd(jps_toce)%laction ) CALL cpl_snd( jps_toce, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2326	IF( ssnd(jps_tice)%laction ) CALL cpl_snd( jps_tice, isec, ztmp3, info )
2327	IF( ssnd(jps_tmix)%laction ) CALL cpl_snd( jps_tmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2328	ENDIF
2329	!
2330	! ! ------------------------- !
2331	! ! 1st layer ice/snow temp. !
2332	! ! ------------------------- !
2333	#if defined key_si3
2334	! needed by Met Office
2335	IF( ssnd(jps_ttilyr)%laction) THEN
2336	SELECT CASE( sn_snd_ttilyr%cldes)
2337	CASE ('weighted ice')
2338	ztmp3(:,:,1:jpl) = t1_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2339	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ttilyr%cldes' )
2340	END SELECT
2341	IF( ssnd(jps_ttilyr)%laction ) CALL cpl_snd( jps_ttilyr, isec, ztmp3, info )
2342	ENDIF
2343	#endif
2344	! ! ------------------------- !
2345	! ! Albedo !
2346	! ! ------------------------- !
2347	IF( ssnd(jps_albice)%laction ) THEN ! ice
2348	SELECT CASE( sn_snd_alb%cldes )
2349	CASE( 'ice' )
2350	SELECT CASE( sn_snd_alb%clcat )
2351	CASE( 'yes' )
2352	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl)
2353	CASE( 'no' )
2354	WHERE( SUM( a_i, dim=3 ) /= 0. )
2355	ztmp1(:,:) = SUM( alb_ice (:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 ) / SUM( a_i(:,:,1:jpl), dim=3 )
2356	ELSEWHERE
2357	ztmp1(:,:) = alb_oce_mix(:,:)
2358	END WHERE
2359	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%clcat' )
2360	END SELECT
2361	CASE( 'weighted ice' ) ;
2362	SELECT CASE( sn_snd_alb%clcat )
2363	CASE( 'yes' )
2364	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2365	CASE( 'no' )
2366	WHERE( fr_i (:,:) > 0. )
2367	ztmp1(:,:) = SUM ( alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 )
2368	ELSEWHERE
2369	ztmp1(:,:) = 0.
2370	END WHERE
2371	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ice%clcat' )
2372	END SELECT
2373	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%cldes' )
2374	END SELECT
2375
2376	SELECT CASE( sn_snd_alb%clcat )
2377	CASE( 'yes' )
2378	CALL cpl_snd( jps_albice, isec, ztmp3, info ) !-> MV this has never been checked in coupled mode
2379	CASE( 'no' )
2380	CALL cpl_snd( jps_albice, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2381	END SELECT
2382	ENDIF
2383
2384	IF( ssnd(jps_albmix)%laction ) THEN ! mixed ice-ocean
2385	ztmp1(:,:) = alb_oce_mix(:,:) * zfr_l(:,:)
2386	DO jl = 1, jpl
2387	ztmp1(:,:) = ztmp1(:,:) + alb_ice(:,:,jl) * a_i(:,:,jl)
2388	END DO
2389	CALL cpl_snd( jps_albmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2390	ENDIF
2391	! ! ------------------------- !
2392	! ! Ice fraction & Thickness !
2393	! ! ------------------------- !
2394	! Send ice fraction field to atmosphere
2395	IF( ssnd(jps_fice)%laction ) THEN
2396	SELECT CASE( sn_snd_thick%clcat )
2397	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2398	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2399	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2400	END SELECT
2401	CALL cpl_snd( jps_fice, isec, ztmp3, info )
2402	ENDIF
2403
2404	#if defined key_si3 \|\| defined key_cice
2405	! If this coupling was successful then save ice fraction for use between coupling points.
2406	! This is needed for some calculations where the ice fraction at the last coupling point
2407	! is needed.
2408	IF( info == OASIS_Sent .OR. info == OASIS_ToRest .OR. &
2409	& info == OASIS_SentOut .OR. info == OASIS_ToRestOut ) THEN
2410	IF ( sn_snd_thick%clcat == 'yes' ) THEN
2411	a_i_last_couple(:,:,1:jpl) = a_i(:,:,1:jpl)
2412	ENDIF
2413	ENDIF
2414	#endif
2415
2416	IF( ssnd(jps_fice1)%laction ) THEN
2417	SELECT CASE( sn_snd_thick1%clcat )
2418	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2419	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2420	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick1%clcat' )
2421	END SELECT
2422	CALL cpl_snd( jps_fice1, isec, ztmp3, info )
2423	ENDIF
2424
2425	! Send ice fraction field to OPA (sent by SAS in SAS-OPA coupling)
2426	IF( ssnd(jps_fice2)%laction ) THEN
2427	ztmp3(:,:,1) = fr_i(:,:)
2428	IF( ssnd(jps_fice2)%laction ) CALL cpl_snd( jps_fice2, isec, ztmp3, info )
2429	ENDIF
2430
2431	! Send ice and snow thickness field
2432	IF( ssnd(jps_hice)%laction .OR. ssnd(jps_hsnw)%laction ) THEN
2433	SELECT CASE( sn_snd_thick%cldes)
2434	CASE( 'none' ) ! nothing to do
2435	CASE( 'weighted ice and snow' )
2436	SELECT CASE( sn_snd_thick%clcat )
2437	CASE( 'yes' )
2438	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl) * a_i(:,:,1:jpl)
2439	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl) * a_i(:,:,1:jpl)
2440	CASE( 'no' )
2441	ztmp3(:,:,:) = 0.0 ; ztmp4(:,:,:) = 0.0
2442	DO jl=1,jpl
2443	ztmp3(:,:,1) = ztmp3(:,:,1) + h_i(:,:,jl) * a_i(:,:,jl)
2444	ztmp4(:,:,1) = ztmp4(:,:,1) + h_s(:,:,jl) * a_i(:,:,jl)
2445	ENDDO
2446	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2447	END SELECT
2448	CASE( 'ice and snow' )
2449	SELECT CASE( sn_snd_thick%clcat )
2450	CASE( 'yes' )
2451	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl)
2452	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl)
2453	CASE( 'no' )
2454	WHERE( SUM( a_i, dim=3 ) /= 0. )
2455	ztmp3(:,:,1) = SUM( h_i * a_i, dim=3 ) / SUM( a_i, dim=3 )
2456	ztmp4(:,:,1) = SUM( h_s * a_i, dim=3 ) / SUM( a_i, dim=3 )
2457	ELSEWHERE
2458	ztmp3(:,:,1) = 0.
2459	ztmp4(:,:,1) = 0.
2460	END WHERE
2461	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2462	END SELECT
2463	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%cldes' )
2464	END SELECT
2465	IF( ssnd(jps_hice)%laction ) CALL cpl_snd( jps_hice, isec, ztmp3, info )
2466	IF( ssnd(jps_hsnw)%laction ) CALL cpl_snd( jps_hsnw, isec, ztmp4, info )
2467	ENDIF
2468
2469	#if defined key_si3
2470	! ! ------------------------- !
2471	! ! Ice melt ponds !
2472	! ! ------------------------- !
2473	! needed by Met Office: 1) fraction of ponded ice 2) local/actual pond depth
2474	IF( ssnd(jps_a_p)%laction .OR. ssnd(jps_ht_p)%laction ) THEN
2475	SELECT CASE( sn_snd_mpnd%cldes)
2476	CASE( 'ice only' )
2477	SELECT CASE( sn_snd_mpnd%clcat )
2478	CASE( 'yes' )
2479	ztmp3(:,:,1:jpl) = a_ip_eff(:,:,1:jpl)
2480	ztmp4(:,:,1:jpl) = h_ip(:,:,1:jpl)
2481	CASE( 'no' )
2482	ztmp3(:,:,:) = 0.0
2483	ztmp4(:,:,:) = 0.0
2484	DO jl=1,jpl
2485	ztmp3(:,:,1) = ztmp3(:,:,1) + a_ip_frac(:,:,jpl)
2486	ztmp4(:,:,1) = ztmp4(:,:,1) + h_ip(:,:,jpl)
2487	ENDDO
2488	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%clcat' )
2489	END SELECT
2490	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%cldes' )
2491	END SELECT
2492	IF( ssnd(jps_a_p)%laction ) CALL cpl_snd( jps_a_p , isec, ztmp3, info )
2493	IF( ssnd(jps_ht_p)%laction ) CALL cpl_snd( jps_ht_p, isec, ztmp4, info )
2494	ENDIF
2495	!
2496	! ! ------------------------- !
2497	! ! Ice conductivity !
2498	! ! ------------------------- !
2499	! needed by Met Office
2500	IF( ssnd(jps_kice)%laction ) THEN
2501	SELECT CASE( sn_snd_cond%cldes)
2502	CASE( 'weighted ice' )
2503	SELECT CASE( sn_snd_cond%clcat )
2504	CASE( 'yes' )
2505	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2506	CASE( 'no' )
2507	ztmp3(:,:,:) = 0.0
2508	DO jl=1,jpl
2509	ztmp3(:,:,1) = ztmp3(:,:,1) + cnd_ice(:,:,jl) * a_i(:,:,jl)
2510	ENDDO
2511	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%clcat' )
2512	END SELECT
2513	CASE( 'ice only' )
2514	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl)
2515	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%cldes' )
2516	END SELECT
2517	IF( ssnd(jps_kice)%laction ) CALL cpl_snd( jps_kice, isec, ztmp3, info )
2518	ENDIF
2519	#endif
2520
2521	! ! ------------------------- !
2522	! ! CO2 flux from PISCES !
2523	! ! ------------------------- !
2524	IF( ssnd(jps_co2)%laction .AND. l_co2cpl ) THEN
2525	ztmp1(:,:) = oce_co2(:,:) * 1000. ! conversion in molC/m2/s
2526	CALL cpl_snd( jps_co2, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ) , info )
2527	ENDIF
2528	!
2529	! ! ------------------------- !
2530	IF( ssnd(jps_ocx1)%laction ) THEN ! Surface current !
2531	! ! ------------------------- !
2532	!
2533	! j+1 j -----V---F
2534	! surface velocity always sent from T point ! \|
2535	! j \| T U
2536	! \| \|
2537	! j j-1 -I-------\|
2538	! (for I) \| \|
2539	! i-1 i i
2540	! i i+1 (for I)
2541	IF( nn_components == jp_iam_opa ) THEN
2542	zotx1(:,:) = uu(:,:,1,Kmm)
2543	zoty1(:,:) = vv(:,:,1,Kmm)
2544	ELSE
2545	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
2546	CASE( 'oce only' ) ! C-grid ==> T
2547	DO_2D( 0, 0, 0, 0 )
2548	zotx1(ji,jj) = 0.5 * ( uu(ji,jj,1,Kmm) + uu(ji-1,jj ,1,Kmm) )
2549	zoty1(ji,jj) = 0.5 * ( vv(ji,jj,1,Kmm) + vv(ji ,jj-1,1,Kmm) )
2550	END_2D
2551	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2552	DO_2D( 0, 0, 0, 0 )
2553	zotx1(ji,jj) = 0.5 * ( uu (ji,jj,1,Kmm) + uu (ji-1,jj ,1,Kmm) ) * zfr_l(ji,jj)
2554	zoty1(ji,jj) = 0.5 * ( vv (ji,jj,1,Kmm) + vv (ji ,jj-1,1,Kmm) ) * zfr_l(ji,jj)
2555	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2556	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2557	END_2D
2558	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1.0_wp, zity1, 'T', -1.0_wp )
2559	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2560	DO_2D( 0, 0, 0, 0 )
2561	zotx1(ji,jj) = 0.5 * ( uu (ji,jj,1,Kmm) + uu (ji-1,jj ,1,Kmm) ) * zfr_l(ji,jj) &
2562	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2563	zoty1(ji,jj) = 0.5 * ( vv (ji,jj,1,Kmm) + vv (ji ,jj-1,1,Kmm) ) * zfr_l(ji,jj) &
2564	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2565	END_2D
2566	END SELECT
2567	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocx1)%clgrid, -1.0_wp, zoty1, ssnd(jps_ocy1)%clgrid, -1.0_wp )
2568	!
2569	ENDIF
2570	!
2571	!
2572	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2573	! ! Ocean component
2574	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2575	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2576	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2577	zoty1(:,:) = ztmp2(:,:)
2578	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2579	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2580	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2581	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2582	zity1(:,:) = ztmp2(:,:)
2583	ENDIF
2584	ENDIF
2585	!
2586	! spherical coordinates to cartesian -> 2 components to 3 components
2587	IF( TRIM( sn_snd_crt%clvref ) == 'cartesian' ) THEN
2588	ztmp1(:,:) = zotx1(:,:) ! ocean currents
2589	ztmp2(:,:) = zoty1(:,:)
2590	CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2591	!
2592	IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2593	ztmp1(:,:) = zitx1(:,:)
2594	ztmp1(:,:) = zity1(:,:)
2595	CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2596	ENDIF
2597	ENDIF
2598	!
2599	IF( ssnd(jps_ocx1)%laction ) CALL cpl_snd( jps_ocx1, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2600	IF( ssnd(jps_ocy1)%laction ) CALL cpl_snd( jps_ocy1, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2601	IF( ssnd(jps_ocz1)%laction ) CALL cpl_snd( jps_ocz1, isec, RESHAPE ( zotz1, (/jpi,jpj,1/) ), info ) ! ocean z current 1st grid
2602	!
2603	IF( ssnd(jps_ivx1)%laction ) CALL cpl_snd( jps_ivx1, isec, RESHAPE ( zitx1, (/jpi,jpj,1/) ), info ) ! ice x current 1st grid
2604	IF( ssnd(jps_ivy1)%laction ) CALL cpl_snd( jps_ivy1, isec, RESHAPE ( zity1, (/jpi,jpj,1/) ), info ) ! ice y current 1st grid
2605	IF( ssnd(jps_ivz1)%laction ) CALL cpl_snd( jps_ivz1, isec, RESHAPE ( zitz1, (/jpi,jpj,1/) ), info ) ! ice z current 1st grid
2606	!
2607	ENDIF
2608	!
2609	! ! ------------------------- !
2610	! ! Surface current to waves !
2611	! ! ------------------------- !
2612	IF( ssnd(jps_ocxw)%laction .OR. ssnd(jps_ocyw)%laction ) THEN
2613	!
2614	! j+1 j -----V---F
2615	! surface velocity always sent from T point ! \|
2616	! j \| T U
2617	! \| \|
2618	! j j-1 -I-------\|
2619	! (for I) \| \|
2620	! i-1 i i
2621	! i i+1 (for I)
2622	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
2623	CASE( 'oce only' ) ! C-grid ==> T
2624	DO_2D( 0, 0, 0, 0 )
2625	zotx1(ji,jj) = 0.5 * ( uu(ji,jj,1,Kmm) + uu(ji-1,jj ,1,Kmm) )
2626	zoty1(ji,jj) = 0.5 * ( vv(ji,jj,1,Kmm) + vv(ji , jj-1,1,Kmm) )
2627	END_2D
2628	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2629	DO_2D( 0, 0, 0, 0 )
2630	zotx1(ji,jj) = 0.5 * ( uu (ji,jj,1,Kmm) + uu (ji-1,jj ,1,Kmm) ) * zfr_l(ji,jj)
2631	zoty1(ji,jj) = 0.5 * ( vv (ji,jj,1,Kmm) + vv (ji ,jj-1,1,Kmm) ) * zfr_l(ji,jj)
2632	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2633	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2634	END_2D
2635	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1.0_wp, zity1, 'T', -1.0_wp )
2636	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2637	DO_2D( 0, 0, 0, 0 )
2638	zotx1(ji,jj) = 0.5 * ( uu (ji,jj,1,Kmm) + uu (ji-1,jj ,1,Kmm) ) * zfr_l(ji,jj) &
2639	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2640	zoty1(ji,jj) = 0.5 * ( vv (ji,jj,1,Kmm) + vv (ji ,jj-1,1,Kmm) ) * zfr_l(ji,jj) &
2641	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2642	END_2D
2643	END SELECT
2644	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocxw)%clgrid, -1.0_wp, zoty1, ssnd(jps_ocyw)%clgrid, -1.0_wp )
2645	!
2646	!
2647	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2648	! ! Ocean component
2649	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2650	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2651	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2652	zoty1(:,:) = ztmp2(:,:)
2653	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2654	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2655	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2656	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2657	zity1(:,:) = ztmp2(:,:)
2658	ENDIF
2659	ENDIF
2660	!
2661	! ! spherical coordinates to cartesian -> 2 components to 3 components
2662	! IF( TRIM( sn_snd_crtw%clvref ) == 'cartesian' ) THEN
2663	! ztmp1(:,:) = zotx1(:,:) ! ocean currents
2664	! ztmp2(:,:) = zoty1(:,:)
2665	! CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2666	! !
2667	! IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2668	! ztmp1(:,:) = zitx1(:,:)
2669	! ztmp1(:,:) = zity1(:,:)
2670	! CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2671	! ENDIF
2672	! ENDIF
2673	!
2674	IF( ssnd(jps_ocxw)%laction ) CALL cpl_snd( jps_ocxw, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2675	IF( ssnd(jps_ocyw)%laction ) CALL cpl_snd( jps_ocyw, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2676	!
2677	ENDIF
2678	!
2679	IF( ssnd(jps_ficet)%laction ) THEN
2680	CALL cpl_snd( jps_ficet, isec, RESHAPE ( fr_i, (/jpi,jpj,1/) ), info )
2681	ENDIF
2682	! ! ------------------------- !
2683	! ! Water levels to waves !
2684	! ! ------------------------- !
2685	IF( ssnd(jps_wlev)%laction ) THEN
2686	IF( ln_apr_dyn ) THEN
2687	IF( kt /= nit000 ) THEN
2688	ztmp1(:,:) = ssh(:,:,Kbb) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2689	ELSE
2690	ztmp1(:,:) = ssh(:,:,Kbb)
2691	ENDIF
2692	ELSE
2693	ztmp1(:,:) = ssh(:,:,Kmm)
2694	ENDIF
2695	CALL cpl_snd( jps_wlev , isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2696	ENDIF
2697	!
2698	! Fields sent by OPA to SAS when doing OPA<->SAS coupling
2699	! ! SSH
2700	IF( ssnd(jps_ssh )%laction ) THEN
2701	! ! removed inverse barometer ssh when Patm
2702	! forcing is used (for sea-ice dynamics)
2703	IF( ln_apr_dyn ) THEN ; ztmp1(:,:) = ssh(:,:,Kbb) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2704	ELSE ; ztmp1(:,:) = ssh(:,:,Kmm)
2705	ENDIF
2706	CALL cpl_snd( jps_ssh , isec, RESHAPE ( ztmp1 , (/jpi,jpj,1/) ), info )
2707
2708	ENDIF
2709	! ! SSS
2710	IF( ssnd(jps_soce )%laction ) THEN
2711	CALL cpl_snd( jps_soce , isec, RESHAPE ( ts(:,:,1,jp_sal,Kmm), (/jpi,jpj,1/) ), info )
2712	ENDIF
2713	! ! first T level thickness
2714	IF( ssnd(jps_e3t1st )%laction ) THEN
2715	CALL cpl_snd( jps_e3t1st, isec, RESHAPE ( e3t(:,:,1,Kmm) , (/jpi,jpj,1/) ), info )
2716	ENDIF
2717	! ! Qsr fraction
2718	IF( ssnd(jps_fraqsr)%laction ) THEN
2719	CALL cpl_snd( jps_fraqsr, isec, RESHAPE ( fraqsr_1lev(:,:) , (/jpi,jpj,1/) ), info )
2720	ENDIF
2721	!
2722	! Fields sent by SAS to OPA when OASIS coupling
2723	! ! Solar heat flux
2724	IF( ssnd(jps_qsroce)%laction ) CALL cpl_snd( jps_qsroce, isec, RESHAPE ( qsr , (/jpi,jpj,1/) ), info )
2725	IF( ssnd(jps_qnsoce)%laction ) CALL cpl_snd( jps_qnsoce, isec, RESHAPE ( qns , (/jpi,jpj,1/) ), info )
2726	IF( ssnd(jps_oemp )%laction ) CALL cpl_snd( jps_oemp , isec, RESHAPE ( emp , (/jpi,jpj,1/) ), info )
2727	IF( ssnd(jps_sflx )%laction ) CALL cpl_snd( jps_sflx , isec, RESHAPE ( sfx , (/jpi,jpj,1/) ), info )
2728	IF( ssnd(jps_otx1 )%laction ) CALL cpl_snd( jps_otx1 , isec, RESHAPE ( utau, (/jpi,jpj,1/) ), info )
2729	IF( ssnd(jps_oty1 )%laction ) CALL cpl_snd( jps_oty1 , isec, RESHAPE ( vtau, (/jpi,jpj,1/) ), info )
2730	IF( ssnd(jps_rnf )%laction ) CALL cpl_snd( jps_rnf , isec, RESHAPE ( rnf , (/jpi,jpj,1/) ), info )
2731	IF( ssnd(jps_taum )%laction ) CALL cpl_snd( jps_taum , isec, RESHAPE ( taum, (/jpi,jpj,1/) ), info )
2732
2733	#if defined key_si3
2734	! ! ------------------------- !
2735	! ! Sea surface freezing temp !
2736	! ! ------------------------- !
2737	! needed by Met Office
2738	CALL eos_fzp(ts(:,:,1,jp_sal,Kmm), sstfrz)
2739	ztmp1(:,:) = sstfrz(:,:) + rt0
2740	IF( ssnd(jps_sstfrz)%laction ) CALL cpl_snd( jps_sstfrz, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info)
2741	#endif
2742	!
2743	END SUBROUTINE sbc_cpl_snd
2744
2745	!!======================================================================
2746	END MODULE sbccpl

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