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sbccpl.F90 in NEMO/branches/UKMO/NEMO_4.0.4_ocean_mean_fluxes/src/OCE/SBC – NEMO

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source: NEMO/branches/UKMO/NEMO_4.0.4_ocean_mean_fluxes/src/OCE/SBC/sbccpl.F90 @ 14423

Last change on this file since 14423 was 14423, checked in by dancopsey, 3 years ago
Merge in solar penetrating branch up to revision 14393.
File size: 161.6 KB

Line
1	MODULE sbccpl
2	!!======================================================================
3	!! * MODULE sbccpl *
4	!! Surface Boundary Condition : momentum, heat and freshwater fluxes in coupled mode
5	!!======================================================================
6	!! History : 2.0 ! 2007-06 (R. Redler, N. Keenlyside, W. Park) Original code split into flxmod & taumod
7	!! 3.0 ! 2008-02 (G. Madec, C Talandier) surface module
8	!! 3.1 ! 2009_02 (G. Madec, S. Masson, E. Maisonave, A. Caubel) generic coupled interface
9	!! 3.4 ! 2011_11 (C. Harris) more flexibility + multi-category fields
10	!!----------------------------------------------------------------------
11
12	!!----------------------------------------------------------------------
13	!! namsbc_cpl : coupled formulation namlist
14	!! sbc_cpl_init : initialisation of the coupled exchanges
15	!! sbc_cpl_rcv : receive fields from the atmosphere over the ocean (ocean only)
16	!! receive stress from the atmosphere over the ocean (ocean-ice case)
17	!! sbc_cpl_ice_tau : receive stress from the atmosphere over ice
18	!! sbc_cpl_ice_flx : receive fluxes from the atmosphere over ice
19	!! sbc_cpl_snd : send fields to the atmosphere
20	!!----------------------------------------------------------------------
21	USE dom_oce ! ocean space and time domain
22	USE sbc_oce ! Surface boundary condition: ocean fields
23	USE trc_oce ! share SMS/Ocean variables
24	USE sbc_ice ! Surface boundary condition: ice fields
25	USE sbcapr ! Stochastic param. : ???
26	USE sbcdcy ! surface boundary condition: diurnal cycle
27	USE sbcwave ! surface boundary condition: waves
28	USE phycst ! physical constants
29	#if defined key_si3
30	USE ice ! ice variables
31	#endif
32	USE cpl_oasis3 ! OASIS3 coupling
33	USE geo2ocean !
34	USE oce , ONLY : tsn, un, vn, sshn, ub, vb, sshb, fraqsr_1lev
35	USE ocealb !
36	USE eosbn2 !
37	USE sbcrnf , ONLY : l_rnfcpl
38	USE sbcisf , ONLY : l_isfcpl
39	#if defined key_cice
40	USE ice_domain_size, only: ncat
41	#endif
42	#if defined key_si3
43	USE icevar ! for CALL ice_var_snwblow
44	#endif
45	!
46	USE in_out_manager ! I/O manager
47	USE iom ! NetCDF library
48	USE lib_mpp ! distribued memory computing library
49	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
50
51	#if defined key_oasis3
52	USE mod_oasis, ONLY : OASIS_Sent, OASIS_ToRest, OASIS_SentOut, OASIS_ToRestOut
53	#endif
54
55	IMPLICIT NONE
56	PRIVATE
57
58	PUBLIC sbc_cpl_init ! routine called by sbcmod.F90
59	PUBLIC sbc_cpl_rcv ! routine called by icestp.F90
60	PUBLIC sbc_cpl_snd ! routine called by step.F90
61	PUBLIC sbc_cpl_ice_tau ! routine called by icestp.F90
62	PUBLIC sbc_cpl_ice_flx ! routine called by icestp.F90
63	PUBLIC sbc_cpl_alloc ! routine called in sbcice_cice.F90
64
65	INTEGER, PARAMETER :: jpr_otx1 = 1 ! 3 atmosphere-ocean stress components on grid 1
66	INTEGER, PARAMETER :: jpr_oty1 = 2 !
67	INTEGER, PARAMETER :: jpr_otz1 = 3 !
68	INTEGER, PARAMETER :: jpr_otx2 = 4 ! 3 atmosphere-ocean stress components on grid 2
69	INTEGER, PARAMETER :: jpr_oty2 = 5 !
70	INTEGER, PARAMETER :: jpr_otz2 = 6 !
71	INTEGER, PARAMETER :: jpr_itx1 = 7 ! 3 atmosphere-ice stress components on grid 1
72	INTEGER, PARAMETER :: jpr_ity1 = 8 !
73	INTEGER, PARAMETER :: jpr_itz1 = 9 !
74	INTEGER, PARAMETER :: jpr_itx2 = 10 ! 3 atmosphere-ice stress components on grid 2
75	INTEGER, PARAMETER :: jpr_ity2 = 11 !
76	INTEGER, PARAMETER :: jpr_itz2 = 12 !
77	INTEGER, PARAMETER :: jpr_qsroce = 13 ! Qsr above the ocean
78	INTEGER, PARAMETER :: jpr_qsrice = 14 ! Qsr above the ice
79	INTEGER, PARAMETER :: jpr_qsrmix = 15
80	INTEGER, PARAMETER :: jpr_qnsoce = 16 ! Qns above the ocean
81	INTEGER, PARAMETER :: jpr_qnsice = 17 ! Qns above the ice
82	INTEGER, PARAMETER :: jpr_qnsmix = 18
83	INTEGER, PARAMETER :: jpr_rain = 19 ! total liquid precipitation (rain)
84	INTEGER, PARAMETER :: jpr_snow = 20 ! solid precipitation over the ocean (snow)
85	INTEGER, PARAMETER :: jpr_tevp = 21 ! total evaporation
86	INTEGER, PARAMETER :: jpr_ievp = 22 ! solid evaporation (sublimation)
87	INTEGER, PARAMETER :: jpr_sbpr = 23 ! sublimation - liquid precipitation - solid precipitation
88	INTEGER, PARAMETER :: jpr_semp = 24 ! solid freshwater budget (sublimation - snow)
89	INTEGER, PARAMETER :: jpr_oemp = 25 ! ocean freshwater budget (evap - precip)
90	INTEGER, PARAMETER :: jpr_w10m = 26 ! 10m wind
91	INTEGER, PARAMETER :: jpr_dqnsdt = 27 ! d(Q non solar)/d(temperature)
92	INTEGER, PARAMETER :: jpr_rnf = 28 ! runoffs
93	INTEGER, PARAMETER :: jpr_cal = 29 ! calving
94	INTEGER, PARAMETER :: jpr_taum = 30 ! wind stress module
95	INTEGER, PARAMETER :: jpr_co2 = 31
96	INTEGER, PARAMETER :: jpr_topm = 32 ! topmeltn
97	INTEGER, PARAMETER :: jpr_botm = 33 ! botmeltn
98	INTEGER, PARAMETER :: jpr_sflx = 34 ! salt flux
99	INTEGER, PARAMETER :: jpr_toce = 35 ! ocean temperature
100	INTEGER, PARAMETER :: jpr_soce = 36 ! ocean salinity
101	INTEGER, PARAMETER :: jpr_ocx1 = 37 ! ocean current on grid 1
102	INTEGER, PARAMETER :: jpr_ocy1 = 38 !
103	INTEGER, PARAMETER :: jpr_ssh = 39 ! sea surface height
104	INTEGER, PARAMETER :: jpr_fice = 40 ! ice fraction
105	INTEGER, PARAMETER :: jpr_e3t1st = 41 ! first T level thickness
106	INTEGER, PARAMETER :: jpr_fraqsr = 42 ! fraction of solar net radiation absorbed in the first ocean level
107	INTEGER, PARAMETER :: jpr_mslp = 43 ! mean sea level pressure
108	INTEGER, PARAMETER :: jpr_hsig = 44 ! Hsig
109	INTEGER, PARAMETER :: jpr_phioc = 45 ! Wave=>ocean energy flux
110	INTEGER, PARAMETER :: jpr_sdrftx = 46 ! Stokes drift on grid 1
111	INTEGER, PARAMETER :: jpr_sdrfty = 47 ! Stokes drift on grid 2
112	INTEGER, PARAMETER :: jpr_wper = 48 ! Mean wave period
113	INTEGER, PARAMETER :: jpr_wnum = 49 ! Mean wavenumber
114	INTEGER, PARAMETER :: jpr_tauwoc = 50 ! Stress fraction adsorbed by waves
115	INTEGER, PARAMETER :: jpr_wdrag = 51 ! Neutral surface drag coefficient
116	INTEGER, PARAMETER :: jpr_isf = 52
117	INTEGER, PARAMETER :: jpr_icb = 53
118	INTEGER, PARAMETER :: jpr_wfreq = 54 ! Wave peak frequency
119	INTEGER, PARAMETER :: jpr_tauwx = 55 ! x component of the ocean stress from waves
120	INTEGER, PARAMETER :: jpr_tauwy = 56 ! y component of the ocean stress from waves
121	INTEGER, PARAMETER :: jpr_ts_ice = 57 ! Sea ice surface temp
122	INTEGER, PARAMETER :: jpr_grnm = 58 ! Greenland ice mass
123	INTEGER, PARAMETER :: jpr_antm = 59 ! Antarctic ice mass
124	INTEGER, PARAMETER :: jpr_rnf_1d = 60 ! 1D river runoff
125	INTEGER, PARAMETER :: jpr_qtr = 61 ! Transmitted solar
126
127	INTEGER, PARAMETER :: jprcv = 61 ! total number of fields received
128
129	INTEGER, PARAMETER :: jps_fice = 1 ! ice fraction sent to the atmosphere
130	INTEGER, PARAMETER :: jps_toce = 2 ! ocean temperature
131	INTEGER, PARAMETER :: jps_tice = 3 ! ice temperature
132	INTEGER, PARAMETER :: jps_tmix = 4 ! mixed temperature (ocean+ice)
133	INTEGER, PARAMETER :: jps_albice = 5 ! ice albedo
134	INTEGER, PARAMETER :: jps_albmix = 6 ! mixed albedo
135	INTEGER, PARAMETER :: jps_hice = 7 ! ice thickness
136	INTEGER, PARAMETER :: jps_hsnw = 8 ! snow thickness
137	INTEGER, PARAMETER :: jps_ocx1 = 9 ! ocean current on grid 1
138	INTEGER, PARAMETER :: jps_ocy1 = 10 !
139	INTEGER, PARAMETER :: jps_ocz1 = 11 !
140	INTEGER, PARAMETER :: jps_ivx1 = 12 ! ice current on grid 1
141	INTEGER, PARAMETER :: jps_ivy1 = 13 !
142	INTEGER, PARAMETER :: jps_ivz1 = 14 !
143	INTEGER, PARAMETER :: jps_co2 = 15
144	INTEGER, PARAMETER :: jps_soce = 16 ! ocean salinity
145	INTEGER, PARAMETER :: jps_ssh = 17 ! sea surface height
146	INTEGER, PARAMETER :: jps_qsroce = 18 ! Qsr above the ocean
147	INTEGER, PARAMETER :: jps_qnsoce = 19 ! Qns above the ocean
148	INTEGER, PARAMETER :: jps_oemp = 20 ! ocean freshwater budget (evap - precip)
149	INTEGER, PARAMETER :: jps_sflx = 21 ! salt flux
150	INTEGER, PARAMETER :: jps_otx1 = 22 ! 2 atmosphere-ocean stress components on grid 1
151	INTEGER, PARAMETER :: jps_oty1 = 23 !
152	INTEGER, PARAMETER :: jps_rnf = 24 ! runoffs
153	INTEGER, PARAMETER :: jps_taum = 25 ! wind stress module
154	INTEGER, PARAMETER :: jps_fice2 = 26 ! ice fraction sent to OPA (by SAS when doing SAS-OPA coupling)
155	INTEGER, PARAMETER :: jps_e3t1st = 27 ! first level depth (vvl)
156	INTEGER, PARAMETER :: jps_fraqsr = 28 ! fraction of solar net radiation absorbed in the first ocean level
157	INTEGER, PARAMETER :: jps_ficet = 29 ! total ice fraction
158	INTEGER, PARAMETER :: jps_ocxw = 30 ! currents on grid 1
159	INTEGER, PARAMETER :: jps_ocyw = 31 ! currents on grid 2
160	INTEGER, PARAMETER :: jps_wlev = 32 ! water level
161	INTEGER, PARAMETER :: jps_fice1 = 33 ! first-order ice concentration (for semi-implicit coupling of atmos-ice fluxes)
162	INTEGER, PARAMETER :: jps_a_p = 34 ! meltpond area fraction
163	INTEGER, PARAMETER :: jps_ht_p = 35 ! meltpond thickness
164	INTEGER, PARAMETER :: jps_kice = 36 ! sea ice effective conductivity
165	INTEGER, PARAMETER :: jps_sstfrz = 37 ! sea surface freezing temperature
166	INTEGER, PARAMETER :: jps_ttilyr = 38 ! sea ice top layer temp
167
168	INTEGER, PARAMETER :: jpsnd = 38 ! total number of fields sent
169
170	#if ! defined key_oasis3
171	! Dummy variables to enable compilation when oasis3 is not being used
172	INTEGER :: OASIS_Sent = -1
173	INTEGER :: OASIS_SentOut = -1
174	INTEGER :: OASIS_ToRest = -1
175	INTEGER :: OASIS_ToRestOut = -1
176	#endif
177
178	! !! namelist namsbc_cpl
179	TYPE :: FLD_C !
180	CHARACTER(len = 32) :: cldes ! desciption of the coupling strategy
181	CHARACTER(len = 32) :: clcat ! multiple ice categories strategy
182	CHARACTER(len = 32) :: clvref ! reference of vector ('spherical' or 'cartesian')
183	CHARACTER(len = 32) :: clvor ! orientation of vector fields ('eastward-northward' or 'local grid')
184	CHARACTER(len = 32) :: clvgrd ! grids on which is located the vector fields
185	END TYPE FLD_C
186	! ! Send to the atmosphere
187	TYPE(FLD_C) :: sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2, &
188	& sn_snd_thick1, sn_snd_cond, sn_snd_mpnd , sn_snd_sstfrz, sn_snd_ttilyr
189	! ! Received from the atmosphere
190	TYPE(FLD_C) :: sn_rcv_w10m, sn_rcv_taumod, sn_rcv_tau, sn_rcv_tauw, sn_rcv_dqnsdt, sn_rcv_qsr, &
191	& sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf, sn_rcv_ts_ice
192	TYPE(FLD_C) :: sn_rcv_cal, sn_rcv_iceflx, sn_rcv_co2, sn_rcv_mslp, sn_rcv_icb, sn_rcv_isf
193	! Send to waves
194	TYPE(FLD_C) :: sn_snd_ifrac, sn_snd_crtw, sn_snd_wlev
195	! Received from waves
196	TYPE(FLD_C) :: sn_rcv_hsig, sn_rcv_phioc, sn_rcv_sdrfx, sn_rcv_sdrfy, sn_rcv_wper, sn_rcv_wnum, sn_rcv_tauwoc, &
197	sn_rcv_wdrag, sn_rcv_wfreq
198	! Transmitted solar
199	TYPE(FLD_C) :: sn_rcv_qtr
200	! ! Other namelist parameters
201	INTEGER :: nn_cplmodel ! Maximum number of models to/from which NEMO is potentialy sending/receiving data
202	LOGICAL :: ln_usecplmask ! use a coupling mask file to merge data received from several models
203	! -> file cplmask.nc with the float variable called cplmask (jpi,jpj,nn_cplmodel)
204	LOGICAL :: ln_scale_ice_flux ! use ice fluxes that are already "ice weighted" ( i.e. multiplied ice concentration)
205
206	TYPE :: DYNARR
207	REAL(wp), POINTER, DIMENSION(:,:,:) :: z3
208	END TYPE DYNARR
209
210	TYPE( DYNARR ), SAVE, DIMENSION(jprcv) :: frcv ! all fields recieved from the atmosphere
211
212	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: alb_oce_mix ! ocean albedo sent to atmosphere (mix clear/overcast sky)
213	#if defined key_si3 \|\| defined key_cice
214	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i_last_couple !: Ice fractional area at last coupling time
215	#endif
216
217	REAL(wp) :: rpref = 101000._wp ! reference atmospheric pressure[N/m2]
218	REAL(wp) :: r1_grau ! = 1.e0 / (grav * rau0)
219
220	INTEGER , ALLOCATABLE, SAVE, DIMENSION(:) :: nrcvinfo ! OASIS info argument
221
222	!! Substitution
223	# include "vectopt_loop_substitute.h90"
224	!!----------------------------------------------------------------------
225	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
226	!! $Id$
227	!! Software governed by the CeCILL license (see ./LICENSE)
228	!!----------------------------------------------------------------------
229	CONTAINS
230
231	INTEGER FUNCTION sbc_cpl_alloc()
232	!!----------------------------------------------------------------------
233	!! * FUNCTION sbc_cpl_alloc *
234	!!----------------------------------------------------------------------
235	INTEGER :: ierr(5)
236	!!----------------------------------------------------------------------
237	ierr(:) = 0
238	!
239	ALLOCATE( alb_oce_mix(jpi,jpj), nrcvinfo(jprcv), STAT=ierr(1) )
240
241	#if ! defined key_si3 && ! defined key_cice
242	ALLOCATE( a_i(jpi,jpj,1) , STAT=ierr(2) ) ! used in sbcice_if.F90 (done here as there is no sbc_ice_if_init)
243	#endif
244	ALLOCATE( xcplmask(jpi,jpj,0:nn_cplmodel) , STAT=ierr(3) )
245	#if defined key_si3 \|\| defined key_cice
246	ALLOCATE( a_i_last_couple(jpi,jpj,jpl) , STAT=ierr(4) )
247	#endif
248	!
249	IF( .NOT. ln_apr_dyn ) ALLOCATE( ssh_ib(jpi,jpj), ssh_ibb(jpi,jpj), apr(jpi, jpj), STAT=ierr(5) )
250
251	sbc_cpl_alloc = MAXVAL( ierr )
252	CALL mpp_sum ( 'sbccpl', sbc_cpl_alloc )
253	IF( sbc_cpl_alloc > 0 ) CALL ctl_warn('sbc_cpl_alloc: allocation of arrays failed')
254	!
255	END FUNCTION sbc_cpl_alloc
256
257
258	SUBROUTINE sbc_cpl_init( k_ice )
259	!!----------------------------------------------------------------------
260	!! * ROUTINE sbc_cpl_init *
261	!!
262	!! ** Purpose : Initialisation of send and received information from
263	!! the atmospheric component
264	!!
265	!! ** Method : * Read namsbc_cpl namelist
266	!! * define the receive interface
267	!! * define the send interface
268	!! * initialise the OASIS coupler
269	!!----------------------------------------------------------------------
270	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
271	!
272	INTEGER :: jn ! dummy loop index
273	INTEGER :: ios, inum ! Local integer
274	REAL(wp), DIMENSION(jpi,jpj) :: zacs, zaos
275	!!
276	NAMELIST/namsbc_cpl/ nn_cplmodel , ln_usecplmask, nn_cats_cpl , ln_scale_ice_flux, &
277	& sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2 , &
278	& sn_snd_ttilyr, sn_snd_cond , sn_snd_mpnd , sn_snd_sstfrz, sn_snd_thick1, &
279	& sn_snd_ifrac , sn_snd_crtw , sn_snd_wlev , sn_rcv_hsig , sn_rcv_phioc , &
280	& sn_rcv_w10m , sn_rcv_taumod, sn_rcv_tau , sn_rcv_dqnsdt, sn_rcv_qsr , &
281	& sn_rcv_sdrfx , sn_rcv_sdrfy , sn_rcv_wper , sn_rcv_wnum , sn_rcv_tauwoc, &
282	& sn_rcv_qtr , &
283	& sn_rcv_wdrag , sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf , sn_rcv_cal , &
284	& sn_rcv_iceflx, sn_rcv_co2 , sn_rcv_mslp , &
285	& sn_rcv_icb , sn_rcv_isf , sn_rcv_wfreq, sn_rcv_tauw , &
286	& sn_rcv_ts_ice
287	!!---------------------------------------------------------------------
288	!
289	! ================================ !
290	! Namelist informations !
291	! ================================ !
292	!
293	REWIND( numnam_ref ) ! Namelist namsbc_cpl in reference namelist : Variables for OASIS coupling
294	READ ( numnam_ref, namsbc_cpl, IOSTAT = ios, ERR = 901)
295	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in reference namelist' )
296	!
297	REWIND( numnam_cfg ) ! Namelist namsbc_cpl in configuration namelist : Variables for OASIS coupling
298	READ ( numnam_cfg, namsbc_cpl, IOSTAT = ios, ERR = 902 )
299	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in configuration namelist' )
300	IF(lwm) WRITE ( numond, namsbc_cpl )
301	!
302	IF(lwp) THEN ! control print
303	WRITE(numout,*)
304	WRITE(numout,*)'sbc_cpl_init : namsbc_cpl namelist '
305	WRITE(numout,*)'~~~~~~~~~~~~'
306	ENDIF
307	IF( lwp .AND. ln_cpl ) THEN ! control print
308	WRITE(numout,*)' nn_cplmodel = ', nn_cplmodel
309	WRITE(numout,*)' ln_usecplmask = ', ln_usecplmask
310	WRITE(numout,*)' ln_scale_ice_flux = ', ln_scale_ice_flux
311	WRITE(numout,*)' nn_cats_cpl = ', nn_cats_cpl
312	WRITE(numout,*)' received fields (mutiple ice categogies)'
313	WRITE(numout,*)' 10m wind module = ', TRIM(sn_rcv_w10m%cldes ), ' (', TRIM(sn_rcv_w10m%clcat ), ')'
314	WRITE(numout,*)' stress module = ', TRIM(sn_rcv_taumod%cldes), ' (', TRIM(sn_rcv_taumod%clcat), ')'
315	WRITE(numout,*)' surface stress = ', TRIM(sn_rcv_tau%cldes ), ' (', TRIM(sn_rcv_tau%clcat ), ')'
316	WRITE(numout,*)' - referential = ', sn_rcv_tau%clvref
317	WRITE(numout,*)' - orientation = ', sn_rcv_tau%clvor
318	WRITE(numout,*)' - mesh = ', sn_rcv_tau%clvgrd
319	WRITE(numout,*)' non-solar heat flux sensitivity = ', TRIM(sn_rcv_dqnsdt%cldes), ' (', TRIM(sn_rcv_dqnsdt%clcat), ')'
320	WRITE(numout,*)' solar heat flux = ', TRIM(sn_rcv_qsr%cldes ), ' (', TRIM(sn_rcv_qsr%clcat ), ')'
321	WRITE(numout,*)' non-solar heat flux = ', TRIM(sn_rcv_qns%cldes ), ' (', TRIM(sn_rcv_qns%clcat ), ')'
322	WRITE(numout,*)' freshwater budget = ', TRIM(sn_rcv_emp%cldes ), ' (', TRIM(sn_rcv_emp%clcat ), ')'
323	WRITE(numout,*)' runoffs = ', TRIM(sn_rcv_rnf%cldes ), ' (', TRIM(sn_rcv_rnf%clcat ), ')'
324	WRITE(numout,*)' calving = ', TRIM(sn_rcv_cal%cldes ), ' (', TRIM(sn_rcv_cal%clcat ), ')'
325	WRITE(numout,*)' iceberg = ', TRIM(sn_rcv_icb%cldes ), ' (', TRIM(sn_rcv_icb%clcat ), ')'
326	WRITE(numout,*)' ice shelf = ', TRIM(sn_rcv_isf%cldes ), ' (', TRIM(sn_rcv_isf%clcat ), ')'
327	WRITE(numout,*)' sea ice heat fluxes = ', TRIM(sn_rcv_iceflx%cldes), ' (', TRIM(sn_rcv_iceflx%clcat), ')'
328	WRITE(numout,*)' transmitted solar = ', TRIM(sn_rcv_qtr%cldes ), ' (', TRIM(sn_rcv_qtr%clcat ), ')'
329	WRITE(numout,*)' atm co2 = ', TRIM(sn_rcv_co2%cldes ), ' (', TRIM(sn_rcv_co2%clcat ), ')'
330	WRITE(numout,*)' significant wave heigth = ', TRIM(sn_rcv_hsig%cldes ), ' (', TRIM(sn_rcv_hsig%clcat ), ')'
331	WRITE(numout,*)' wave to oce energy flux = ', TRIM(sn_rcv_phioc%cldes ), ' (', TRIM(sn_rcv_phioc%clcat ), ')'
332	WRITE(numout,*)' Surface Stokes drift grid u = ', TRIM(sn_rcv_sdrfx%cldes ), ' (', TRIM(sn_rcv_sdrfx%clcat ), ')'
333	WRITE(numout,*)' Surface Stokes drift grid v = ', TRIM(sn_rcv_sdrfy%cldes ), ' (', TRIM(sn_rcv_sdrfy%clcat ), ')'
334	WRITE(numout,*)' Mean wave period = ', TRIM(sn_rcv_wper%cldes ), ' (', TRIM(sn_rcv_wper%clcat ), ')'
335	WRITE(numout,*)' Mean wave number = ', TRIM(sn_rcv_wnum%cldes ), ' (', TRIM(sn_rcv_wnum%clcat ), ')'
336	WRITE(numout,*)' Wave peak frequency = ', TRIM(sn_rcv_wfreq%cldes ), ' (', TRIM(sn_rcv_wfreq%clcat ), ')'
337	WRITE(numout,*)' Stress frac adsorbed by waves = ', TRIM(sn_rcv_tauwoc%cldes), ' (', TRIM(sn_rcv_tauwoc%clcat ), ')'
338	WRITE(numout,*)' Stress components by waves = ', TRIM(sn_rcv_tauw%cldes ), ' (', TRIM(sn_rcv_tauw%clcat ), ')'
339	WRITE(numout,*)' Neutral surf drag coefficient = ', TRIM(sn_rcv_wdrag%cldes ), ' (', TRIM(sn_rcv_wdrag%clcat ), ')'
340	WRITE(numout,*)' Sea ice surface skin temperature= ', TRIM(sn_rcv_ts_ice%cldes), ' (', TRIM(sn_rcv_ts_ice%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
363	! ! allocate sbccpl arrays
364	IF( sbc_cpl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_cpl_alloc : unable to allocate arrays' )
365
366	! ================================ !
367	! Define the receive interface !
368	! ================================ !
369	nrcvinfo(:) = OASIS_idle ! needed by nrcvinfo(jpr_otx1) if we do not receive ocean stress
370
371	! for each field: define the OASIS name (srcv(:)%clname)
372	! define receive or not from the namelist parameters (srcv(:)%laction)
373	! define the north fold type of lbc (srcv(:)%nsgn)
374
375	! default definitions of srcv
376	srcv(:)%laction = .FALSE. ; srcv(:)%clgrid = 'T' ; srcv(:)%nsgn = 1. ; srcv(:)%nct = 1
377
378	! ! ------------------------- !
379	! ! ice and ocean wind stress !
380	! ! ------------------------- !
381	! ! Name
382	srcv(jpr_otx1)%clname = 'O_OTaux1' ! 1st ocean component on grid ONE (T or U)
383	srcv(jpr_oty1)%clname = 'O_OTauy1' ! 2nd - - - -
384	srcv(jpr_otz1)%clname = 'O_OTauz1' ! 3rd - - - -
385	srcv(jpr_otx2)%clname = 'O_OTaux2' ! 1st ocean component on grid TWO (V)
386	srcv(jpr_oty2)%clname = 'O_OTauy2' ! 2nd - - - -
387	srcv(jpr_otz2)%clname = 'O_OTauz2' ! 3rd - - - -
388	!
389	srcv(jpr_itx1)%clname = 'O_ITaux1' ! 1st ice component on grid ONE (T, F, I or U)
390	srcv(jpr_ity1)%clname = 'O_ITauy1' ! 2nd - - - -
391	srcv(jpr_itz1)%clname = 'O_ITauz1' ! 3rd - - - -
392	srcv(jpr_itx2)%clname = 'O_ITaux2' ! 1st ice component on grid TWO (V)
393	srcv(jpr_ity2)%clname = 'O_ITauy2' ! 2nd - - - -
394	srcv(jpr_itz2)%clname = 'O_ITauz2' ! 3rd - - - -
395	!
396	! Vectors: change of sign at north fold ONLY if on the local grid
397	IF( TRIM( sn_rcv_tau%cldes ) == 'oce only' .OR. TRIM( sn_rcv_tau%cldes ) == 'oce and ice' &
398	.OR. TRIM( sn_rcv_tau%cldes ) == 'mixed oce-ice' ) THEN ! avoid working with the atmospheric fields if they are not coupled
399	!
400	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) srcv(jpr_otx1:jpr_itz2)%nsgn = -1.
401
402	! ! Set grid and action
403	SELECT CASE( TRIM( sn_rcv_tau%clvgrd ) ) ! 'T', 'U,V', 'U,V,I', 'U,V,F', 'T,I', 'T,F', or 'T,U,V'
404	CASE( 'T' )
405	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
406	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
407	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
408	CASE( 'U,V' )
409	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
410	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
411	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
412	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
413	srcv(jpr_otx1:jpr_itz2)%laction = .TRUE. ! receive oce and ice components on both grid 1 & 2
414	CASE( 'U,V,T' )
415	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
416	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
417	srcv(jpr_itx1:jpr_itz1)%clgrid = 'T' ! ice components given at T-point
418	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
419	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
420	CASE( 'U,V,I' )
421	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
422	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
423	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
424	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
425	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
426	CASE( 'U,V,F' )
427	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
428	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
429	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
430	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
431	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
432	CASE( 'T,I' )
433	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
434	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
435	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
436	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
437	CASE( 'T,F' )
438	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
439	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
440	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
441	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
442	CASE( 'T,U,V' )
443	srcv(jpr_otx1:jpr_otz1)%clgrid = 'T' ! oce components given at T-point
444	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
445	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
446	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1 only
447	srcv(jpr_itx1:jpr_itz2)%laction = .TRUE. ! receive ice components on grid 1 & 2
448	CASE default
449	CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_tau%clvgrd' )
450	END SELECT
451	!
452	IF( TRIM( sn_rcv_tau%clvref ) == 'spherical' ) & ! spherical: 3rd component not received
453	& srcv( (/jpr_otz1, jpr_otz2, jpr_itz1, jpr_itz2/) )%laction = .FALSE.
454	!
455	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) THEN ! already on local grid -> no need of the second grid
456	srcv(jpr_otx2:jpr_otz2)%laction = .FALSE.
457	srcv(jpr_itx2:jpr_itz2)%laction = .FALSE.
458	srcv(jpr_oty1)%clgrid = srcv(jpr_oty2)%clgrid ! not needed but cleaner...
459	srcv(jpr_ity1)%clgrid = srcv(jpr_ity2)%clgrid ! not needed but cleaner...
460	ENDIF
461	!
462	IF( TRIM( sn_rcv_tau%cldes ) /= 'oce and ice' ) THEN ! 'oce and ice' case ocean stress on ocean mesh used
463	srcv(jpr_itx1:jpr_itz2)%laction = .FALSE. ! ice components not received
464	srcv(jpr_itx1)%clgrid = 'U' ! ocean stress used after its transformation
465	srcv(jpr_ity1)%clgrid = 'V' ! i.e. it is always at U- & V-points for i- & j-comp. resp.
466	ENDIF
467	ENDIF
468
469	! ! ------------------------- !
470	! ! freshwater budget ! E-P
471	! ! ------------------------- !
472	! we suppose that atmosphere modele do not make the difference between precipiration (liquide or solid)
473	! over ice of free ocean within the same atmospheric cell.cd
474	srcv(jpr_rain)%clname = 'OTotRain' ! Rain = liquid precipitation
475	srcv(jpr_snow)%clname = 'OTotSnow' ! Snow = solid precipitation
476	srcv(jpr_tevp)%clname = 'OTotEvap' ! total evaporation (over oce + ice sublimation)
477	srcv(jpr_ievp)%clname = 'OIceEvap' ! evaporation over ice = sublimation
478	srcv(jpr_sbpr)%clname = 'OSubMPre' ! sublimation - liquid precipitation - solid precipitation
479	srcv(jpr_semp)%clname = 'OISubMSn' ! ice solid water budget = sublimation - solid precipitation
480	srcv(jpr_oemp)%clname = 'OOEvaMPr' ! ocean water budget = ocean Evap - ocean precip
481	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
482	CASE( 'none' ) ! nothing to do
483	CASE( 'oce only' ) ; srcv(jpr_oemp)%laction = .TRUE.
484	CASE( 'conservative' )
485	srcv( (/jpr_rain, jpr_snow, jpr_ievp, jpr_tevp/) )%laction = .TRUE.
486	IF ( k_ice <= 1 ) srcv(jpr_ievp)%laction = .FALSE.
487	CASE( 'oce and ice' ) ; srcv( (/jpr_ievp, jpr_sbpr, jpr_semp, jpr_oemp/) )%laction = .TRUE.
488	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_emp%cldes' )
489	END SELECT
490	!
491	! ! ------------------------- !
492	! ! Runoffs & Calving !
493	! ! ------------------------- !
494	srcv(jpr_rnf )%clname = 'O_Runoff'
495	IF( TRIM( sn_rcv_rnf%cldes ) == 'coupled' ) THEN
496	srcv(jpr_rnf)%laction = .TRUE.
497	l_rnfcpl = .TRUE. ! -> no need to read runoffs in sbcrnf
498	ln_rnf = nn_components /= jp_iam_sas ! -> force to go through sbcrnf if not sas
499	IF(lwp) WRITE(numout,*)
500	IF(lwp) WRITE(numout,*) ' runoffs received from oasis -> force ln_rnf = ', ln_rnf
501	ENDIF
502	!
503	srcv(jpr_cal)%clname = 'OCalving' ; IF( TRIM( sn_rcv_cal%cldes) == 'coupled' ) srcv(jpr_cal)%laction = .TRUE.
504	srcv(jpr_isf)%clname = 'OIcshelf' ; IF( TRIM( sn_rcv_isf%cldes) == 'coupled' ) srcv(jpr_isf)%laction = .TRUE.
505	srcv(jpr_icb)%clname = 'OIceberg' ; IF( TRIM( sn_rcv_icb%cldes) == 'coupled' ) srcv(jpr_icb)%laction = .TRUE.
506
507	IF( srcv(jpr_isf)%laction .AND. ln_isf ) THEN
508	l_isfcpl = .TRUE. ! -> no need to read isf in sbcisf
509	IF(lwp) WRITE(numout,*)
510	IF(lwp) WRITE(numout,*) ' iceshelf received from oasis '
511	ENDIF
512	!
513	! ! ------------------------- !
514	! ! non solar radiation ! Qns
515	! ! ------------------------- !
516	srcv(jpr_qnsoce)%clname = 'O_QnsOce'
517	srcv(jpr_qnsice)%clname = 'O_QnsIce'
518	srcv(jpr_qnsmix)%clname = 'O_QnsMix'
519	SELECT CASE( TRIM( sn_rcv_qns%cldes ) )
520	CASE( 'none' ) ! nothing to do
521	CASE( 'oce only' ) ; srcv( jpr_qnsoce )%laction = .TRUE.
522	CASE( 'conservative' ) ; srcv( (/jpr_qnsice, jpr_qnsmix/) )%laction = .TRUE.
523	CASE( 'oce and ice' ) ; srcv( (/jpr_qnsice, jpr_qnsoce/) )%laction = .TRUE.
524	CASE( 'mixed oce-ice' ) ; srcv( jpr_qnsmix )%laction = .TRUE.
525	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qns%cldes' )
526	END SELECT
527	IF( TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
528	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qns%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
529	!
530	! ! ------------------------- !
531	! ! solar radiation ! Qsr
532	! ! ------------------------- !
533	srcv(jpr_qsroce)%clname = 'O_QsrOce'
534	srcv(jpr_qsrice)%clname = 'O_QsrIce'
535	srcv(jpr_qsrmix)%clname = 'O_QsrMix'
536	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) )
537	CASE( 'none' ) ! nothing to do
538	CASE( 'oce only' ) ; srcv( jpr_qsroce )%laction = .TRUE.
539	CASE( 'conservative' ) ; srcv( (/jpr_qsrice, jpr_qsrmix/) )%laction = .TRUE.
540	CASE( 'oce and ice' ) ; srcv( (/jpr_qsrice, jpr_qsroce/) )%laction = .TRUE.
541	CASE( 'mixed oce-ice' ) ; srcv( jpr_qsrmix )%laction = .TRUE.
542	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qsr%cldes' )
543	END SELECT
544	IF( TRIM( sn_rcv_qsr%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
545	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qsr%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
546	!
547	! ! ------------------------- !
548	! ! non solar sensitivity ! d(Qns)/d(T)
549	! ! ------------------------- !
550	srcv(jpr_dqnsdt)%clname = 'O_dQnsdT'
551	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'coupled' ) srcv(jpr_dqnsdt)%laction = .TRUE.
552	!
553	! non solar sensitivity mandatory for mixed oce-ice solar radiation coupling technique
554	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' ) &
555	& CALL ctl_stop( 'sbc_cpl_init: namsbc_cpl namelist mismatch between sn_rcv_qns%cldes and sn_rcv_dqnsdt%cldes' )
556	!
557	! ! ------------------------- !
558	! ! 10m wind module !
559	! ! ------------------------- !
560	srcv(jpr_w10m)%clname = 'O_Wind10' ; IF( TRIM(sn_rcv_w10m%cldes ) == 'coupled' ) srcv(jpr_w10m)%laction = .TRUE.
561	!
562	! ! ------------------------- !
563	! ! wind stress module !
564	! ! ------------------------- !
565	srcv(jpr_taum)%clname = 'O_TauMod' ; IF( TRIM(sn_rcv_taumod%cldes) == 'coupled' ) srcv(jpr_taum)%laction = .TRUE.
566	lhftau = srcv(jpr_taum)%laction
567	!
568	! ! ------------------------- !
569	! ! Atmospheric CO2 !
570	! ! ------------------------- !
571	srcv(jpr_co2 )%clname = 'O_AtmCO2'
572	IF( TRIM(sn_rcv_co2%cldes ) == 'coupled' ) THEN
573	srcv(jpr_co2 )%laction = .TRUE.
574	l_co2cpl = .TRUE.
575	IF(lwp) WRITE(numout,*)
576	IF(lwp) WRITE(numout,*) ' Atmospheric pco2 received from oasis '
577	IF(lwp) WRITE(numout,*)
578	ENDIF
579	!
580	! ! ------------------------- !
581	! ! Mean Sea Level Pressure !
582	! ! ------------------------- !
583	srcv(jpr_mslp)%clname = 'O_MSLP' ; IF( TRIM(sn_rcv_mslp%cldes ) == 'coupled' ) srcv(jpr_mslp)%laction = .TRUE.
584	!
585	! ! ------------------------- !
586	! ! ice topmelt and botmelt !
587	! ! ------------------------- !
588	srcv(jpr_topm )%clname = 'OTopMlt'
589	srcv(jpr_botm )%clname = 'OBotMlt'
590	IF( TRIM(sn_rcv_iceflx%cldes) == 'coupled' ) THEN
591	IF ( TRIM( sn_rcv_iceflx%clcat ) == 'yes' ) THEN
592	srcv(jpr_topm:jpr_botm)%nct = nn_cats_cpl
593	ELSE
594	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_iceflx%clcat should always be set to yes currently' )
595	ENDIF
596	srcv(jpr_topm:jpr_botm)%laction = .TRUE.
597	ENDIF
598	! ! ------------------------- !
599	! ! transmitted solar !
600	! ! ------------------------- !
601	srcv(jpr_qtr )%clname = 'OQtr'
602	IF( TRIM(sn_rcv_qtr%cldes) == 'coupled' ) THEN
603	IF ( TRIM( sn_rcv_qtr%clcat ) == 'yes' ) THEN
604	srcv(jpr_qtr)%nct = nn_cats_cpl
605	ELSE
606	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qtr%clcat should always be set to yes currently' )
607	ENDIF
608	srcv(jpr_qtr)%laction = .TRUE.
609	ENDIF
610
611	! ! ------------------------- !
612	! ! ice skin temperature !
613	! ! ------------------------- !
614	srcv(jpr_ts_ice)%clname = 'OTsfIce' ! needed by Met Office
615	IF ( TRIM( sn_rcv_ts_ice%cldes ) == 'ice' ) srcv(jpr_ts_ice)%laction = .TRUE.
616	IF ( TRIM( sn_rcv_ts_ice%clcat ) == 'yes' ) srcv(jpr_ts_ice)%nct = nn_cats_cpl
617	IF ( TRIM( sn_rcv_emp%clcat ) == 'yes' ) srcv(jpr_ievp)%nct = nn_cats_cpl
618
619	#if defined key_si3
620	IF( ln_cndflx .AND. .NOT.ln_cndemulate ) THEN
621	IF( .NOT.srcv(jpr_ts_ice)%laction ) &
622	& CALL ctl_stop( 'sbc_cpl_init: srcv(jpr_ts_ice)%laction should be set to true when ln_cndflx=T' )
623	ENDIF
624	#endif
625	! ! ------------------------- !
626	! ! Wave breaking !
627	! ! ------------------------- !
628	srcv(jpr_hsig)%clname = 'O_Hsigwa' ! significant wave height
629	IF( TRIM(sn_rcv_hsig%cldes ) == 'coupled' ) THEN
630	srcv(jpr_hsig)%laction = .TRUE.
631	cpl_hsig = .TRUE.
632	ENDIF
633	srcv(jpr_phioc)%clname = 'O_PhiOce' ! wave to ocean energy
634	IF( TRIM(sn_rcv_phioc%cldes ) == 'coupled' ) THEN
635	srcv(jpr_phioc)%laction = .TRUE.
636	cpl_phioc = .TRUE.
637	ENDIF
638	srcv(jpr_sdrftx)%clname = 'O_Sdrfx' ! Stokes drift in the u direction
639	IF( TRIM(sn_rcv_sdrfx%cldes ) == 'coupled' ) THEN
640	srcv(jpr_sdrftx)%laction = .TRUE.
641	cpl_sdrftx = .TRUE.
642	ENDIF
643	srcv(jpr_sdrfty)%clname = 'O_Sdrfy' ! Stokes drift in the v direction
644	IF( TRIM(sn_rcv_sdrfy%cldes ) == 'coupled' ) THEN
645	srcv(jpr_sdrfty)%laction = .TRUE.
646	cpl_sdrfty = .TRUE.
647	ENDIF
648	srcv(jpr_wper)%clname = 'O_WPer' ! mean wave period
649	IF( TRIM(sn_rcv_wper%cldes ) == 'coupled' ) THEN
650	srcv(jpr_wper)%laction = .TRUE.
651	cpl_wper = .TRUE.
652	ENDIF
653	srcv(jpr_wfreq)%clname = 'O_WFreq' ! wave peak frequency
654	IF( TRIM(sn_rcv_wfreq%cldes ) == 'coupled' ) THEN
655	srcv(jpr_wfreq)%laction = .TRUE.
656	cpl_wfreq = .TRUE.
657	ENDIF
658	srcv(jpr_wnum)%clname = 'O_WNum' ! mean wave number
659	IF( TRIM(sn_rcv_wnum%cldes ) == 'coupled' ) THEN
660	srcv(jpr_wnum)%laction = .TRUE.
661	cpl_wnum = .TRUE.
662	ENDIF
663	srcv(jpr_tauwoc)%clname = 'O_TauOce' ! stress fraction adsorbed by the wave
664	IF( TRIM(sn_rcv_tauwoc%cldes ) == 'coupled' ) THEN
665	srcv(jpr_tauwoc)%laction = .TRUE.
666	cpl_tauwoc = .TRUE.
667	ENDIF
668	srcv(jpr_tauwx)%clname = 'O_Tauwx' ! ocean stress from wave in the x direction
669	srcv(jpr_tauwy)%clname = 'O_Tauwy' ! ocean stress from wave in the y direction
670	IF( TRIM(sn_rcv_tauw%cldes ) == 'coupled' ) THEN
671	srcv(jpr_tauwx)%laction = .TRUE.
672	srcv(jpr_tauwy)%laction = .TRUE.
673	cpl_tauw = .TRUE.
674	ENDIF
675	srcv(jpr_wdrag)%clname = 'O_WDrag' ! neutral surface drag coefficient
676	IF( TRIM(sn_rcv_wdrag%cldes ) == 'coupled' ) THEN
677	srcv(jpr_wdrag)%laction = .TRUE.
678	cpl_wdrag = .TRUE.
679	ENDIF
680	IF( srcv(jpr_tauwoc)%laction .AND. srcv(jpr_tauwx)%laction .AND. srcv(jpr_tauwy)%laction ) &
681	CALL ctl_stop( 'More than one method for modifying the ocean stress has been selected ', &
682	'(sn_rcv_tauwoc=coupled and sn_rcv_tauw=coupled)' )
683	!
684	! ! ------------------------------- !
685	! ! OPA-SAS coupling - rcv by opa !
686	! ! ------------------------------- !
687	srcv(jpr_sflx)%clname = 'O_SFLX'
688	srcv(jpr_fice)%clname = 'RIceFrc'
689	!
690	IF( nn_components == jp_iam_opa ) THEN ! OPA coupled to SAS via OASIS: force received field by OPA (sent by SAS)
691	srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
692	srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
693	srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
694	srcv( (/jpr_qsroce, jpr_qnsoce, jpr_oemp, jpr_sflx, jpr_fice, jpr_otx1, jpr_oty1, jpr_taum/) )%laction = .TRUE.
695	srcv(jpr_otx1)%clgrid = 'U' ! oce components given at U-point
696	srcv(jpr_oty1)%clgrid = 'V' ! and V-point
697	! Vectors: change of sign at north fold ONLY if on the local grid
698	srcv( (/jpr_otx1,jpr_oty1/) )%nsgn = -1.
699	sn_rcv_tau%clvgrd = 'U,V'
700	sn_rcv_tau%clvor = 'local grid'
701	sn_rcv_tau%clvref = 'spherical'
702	sn_rcv_emp%cldes = 'oce only'
703	!
704	IF(lwp) THEN ! control print
705	WRITE(numout,*)
706	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
707	WRITE(numout,*)' OPA component '
708	WRITE(numout,*)
709	WRITE(numout,*)' received fields from SAS component '
710	WRITE(numout,*)' ice cover '
711	WRITE(numout,*)' oce only EMP '
712	WRITE(numout,*)' salt flux '
713	WRITE(numout,*)' mixed oce-ice solar flux '
714	WRITE(numout,*)' mixed oce-ice non solar flux '
715	WRITE(numout,*)' wind stress U,V on local grid and sperical coordinates '
716	WRITE(numout,*)' wind stress module'
717	WRITE(numout,*)
718	ENDIF
719	ENDIF
720	! ! -------------------------------- !
721	! ! OPA-SAS coupling - rcv by sas !
722	! ! -------------------------------- !
723	srcv(jpr_toce )%clname = 'I_SSTSST'
724	srcv(jpr_soce )%clname = 'I_SSSal'
725	srcv(jpr_ocx1 )%clname = 'I_OCurx1'
726	srcv(jpr_ocy1 )%clname = 'I_OCury1'
727	srcv(jpr_ssh )%clname = 'I_SSHght'
728	srcv(jpr_e3t1st)%clname = 'I_E3T1st'
729	srcv(jpr_fraqsr)%clname = 'I_FraQsr'
730	!
731	IF( nn_components == jp_iam_sas ) THEN
732	IF( .NOT. ln_cpl ) srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
733	IF( .NOT. ln_cpl ) srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
734	IF( .NOT. ln_cpl ) srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
735	srcv( (/jpr_toce, jpr_soce, jpr_ssh, jpr_fraqsr, jpr_ocx1, jpr_ocy1/) )%laction = .TRUE.
736	srcv( jpr_e3t1st )%laction = .NOT.ln_linssh
737	srcv(jpr_ocx1)%clgrid = 'U' ! oce components given at U-point
738	srcv(jpr_ocy1)%clgrid = 'V' ! and V-point
739	! Vectors: change of sign at north fold ONLY if on the local grid
740	srcv(jpr_ocx1:jpr_ocy1)%nsgn = -1.
741	! Change first letter to couple with atmosphere if already coupled OPA
742	! this is nedeed as each variable name used in the namcouple must be unique:
743	! for example O_Runoff received by OPA from SAS and therefore O_Runoff received by SAS from the Atmosphere
744	DO jn = 1, jprcv
745	IF ( srcv(jn)%clname(1:1) == "O" ) srcv(jn)%clname = "S"//srcv(jn)%clname(2:LEN(srcv(jn)%clname))
746	END DO
747	!
748	IF(lwp) THEN ! control print
749	WRITE(numout,*)
750	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
751	WRITE(numout,*)' SAS component '
752	WRITE(numout,*)
753	IF( .NOT. ln_cpl ) THEN
754	WRITE(numout,*)' received fields from OPA component '
755	ELSE
756	WRITE(numout,*)' Additional received fields from OPA component : '
757	ENDIF
758	WRITE(numout,*)' sea surface temperature (Celsius) '
759	WRITE(numout,*)' sea surface salinity '
760	WRITE(numout,*)' surface currents '
761	WRITE(numout,*)' sea surface height '
762	WRITE(numout,*)' thickness of first ocean T level '
763	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
764	WRITE(numout,*)
765	ENDIF
766	ENDIF
767
768	! =================================================== !
769	! Allocate all parts of frcv used for received fields !
770	! =================================================== !
771	DO jn = 1, jprcv
772	IF ( srcv(jn)%laction ) ALLOCATE( frcv(jn)%z3(jpi,jpj,srcv(jn)%nct) )
773	END DO
774	! Allocate taum part of frcv which is used even when not received as coupling field
775	IF ( .NOT. srcv(jpr_taum)%laction ) ALLOCATE( frcv(jpr_taum)%z3(jpi,jpj,srcv(jpr_taum)%nct) )
776	! Allocate w10m part of frcv which is used even when not received as coupling field
777	IF ( .NOT. srcv(jpr_w10m)%laction ) ALLOCATE( frcv(jpr_w10m)%z3(jpi,jpj,srcv(jpr_w10m)%nct) )
778	! Allocate jpr_otx1 part of frcv which is used even when not received as coupling field
779	IF ( .NOT. srcv(jpr_otx1)%laction ) ALLOCATE( frcv(jpr_otx1)%z3(jpi,jpj,srcv(jpr_otx1)%nct) )
780	IF ( .NOT. srcv(jpr_oty1)%laction ) ALLOCATE( frcv(jpr_oty1)%z3(jpi,jpj,srcv(jpr_oty1)%nct) )
781	! Allocate itx1 and ity1 as they are used in sbc_cpl_ice_tau even if srcv(jpr_itx1)%laction = .FALSE.
782	IF( k_ice /= 0 ) THEN
783	IF ( .NOT. srcv(jpr_itx1)%laction ) ALLOCATE( frcv(jpr_itx1)%z3(jpi,jpj,srcv(jpr_itx1)%nct) )
784	IF ( .NOT. srcv(jpr_ity1)%laction ) ALLOCATE( frcv(jpr_ity1)%z3(jpi,jpj,srcv(jpr_ity1)%nct) )
785	END IF
786
787	! ================================ !
788	! Define the send interface !
789	! ================================ !
790	! for each field: define the OASIS name (ssnd(:)%clname)
791	! define send or not from the namelist parameters (ssnd(:)%laction)
792	! define the north fold type of lbc (ssnd(:)%nsgn)
793
794	! default definitions of nsnd
795	ssnd(:)%laction = .FALSE. ; ssnd(:)%clgrid = 'T' ; ssnd(:)%nsgn = 1. ; ssnd(:)%nct = 1
796
797	! ! ------------------------- !
798	! ! Surface temperature !
799	! ! ------------------------- !
800	ssnd(jps_toce)%clname = 'O_SSTSST'
801	ssnd(jps_tice)%clname = 'O_TepIce'
802	ssnd(jps_ttilyr)%clname = 'O_TtiLyr'
803	ssnd(jps_tmix)%clname = 'O_TepMix'
804	SELECT CASE( TRIM( sn_snd_temp%cldes ) )
805	CASE( 'none' ) ! nothing to do
806	CASE( 'oce only' ) ; ssnd( jps_toce )%laction = .TRUE.
807	CASE( 'oce and ice' , 'weighted oce and ice' , 'oce and weighted ice' )
808	ssnd( (/jps_toce, jps_tice/) )%laction = .TRUE.
809	IF ( TRIM( sn_snd_temp%clcat ) == 'yes' ) ssnd(jps_tice)%nct = nn_cats_cpl
810	CASE( 'mixed oce-ice' ) ; ssnd( jps_tmix )%laction = .TRUE.
811	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_temp%cldes' )
812	END SELECT
813
814	! ! ------------------------- !
815	! ! Albedo !
816	! ! ------------------------- !
817	ssnd(jps_albice)%clname = 'O_AlbIce'
818	ssnd(jps_albmix)%clname = 'O_AlbMix'
819	SELECT CASE( TRIM( sn_snd_alb%cldes ) )
820	CASE( 'none' ) ! nothing to do
821	CASE( 'ice' , 'weighted ice' ) ; ssnd(jps_albice)%laction = .TRUE.
822	CASE( 'mixed oce-ice' ) ; ssnd(jps_albmix)%laction = .TRUE.
823	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_alb%cldes' )
824	END SELECT
825	!
826	! Need to calculate oceanic albedo if
827	! 1. sending mixed oce-ice albedo or
828	! 2. receiving mixed oce-ice solar radiation
829	IF ( TRIM ( sn_snd_alb%cldes ) == 'mixed oce-ice' .OR. TRIM ( sn_rcv_qsr%cldes ) == 'mixed oce-ice' ) THEN
830	CALL oce_alb( zaos, zacs )
831	! Due to lack of information on nebulosity : mean clear/overcast sky
832	alb_oce_mix(:,:) = ( zacs(:,:) + zaos(:,:) ) * 0.5
833	ENDIF
834	! ! ------------------------- !
835	! ! Ice fraction & Thickness !
836	! ! ------------------------- !
837	ssnd(jps_fice)%clname = 'OIceFrc'
838	ssnd(jps_ficet)%clname = 'OIceFrcT'
839	ssnd(jps_hice)%clname = 'OIceTck'
840	ssnd(jps_a_p)%clname = 'OPndFrc'
841	ssnd(jps_ht_p)%clname = 'OPndTck'
842	ssnd(jps_hsnw)%clname = 'OSnwTck'
843	ssnd(jps_fice1)%clname = 'OIceFrd'
844	IF( k_ice /= 0 ) THEN
845	ssnd(jps_fice)%laction = .TRUE. ! if ice treated in the ocean (even in climato case)
846	ssnd(jps_fice1)%laction = .TRUE. ! First-order regridded ice concentration, to be used producing atmos-to-ice fluxes (Met Office requirement)
847	! Currently no namelist entry to determine sending of multi-category ice fraction so use the thickness entry for now
848	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_fice)%nct = nn_cats_cpl
849	IF ( TRIM( sn_snd_thick1%clcat ) == 'yes' ) ssnd(jps_fice1)%nct = nn_cats_cpl
850	ENDIF
851
852	IF (TRIM( sn_snd_ifrac%cldes ) == 'coupled') ssnd(jps_ficet)%laction = .TRUE.
853
854	SELECT CASE ( TRIM( sn_snd_thick%cldes ) )
855	CASE( 'none' ) ! nothing to do
856	CASE( 'ice and snow' )
857	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
858	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) THEN
859	ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
860	ENDIF
861	CASE ( 'weighted ice and snow' )
862	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
863	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
864	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_thick%cldes' )
865	END SELECT
866
867	! Initialise ice fractions from last coupling time to zero (needed by Met-Office)
868	#if defined key_si3 \|\| defined key_cice
869	a_i_last_couple(:,:,:) = 0._wp
870	#endif
871	! ! ------------------------- !
872	! ! Ice Meltponds !
873	! ! ------------------------- !
874	! Needed by Met Office
875	ssnd(jps_a_p)%clname = 'OPndFrc'
876	ssnd(jps_ht_p)%clname = 'OPndTck'
877	SELECT CASE ( TRIM( sn_snd_mpnd%cldes ) )
878	CASE ( 'none' )
879	ssnd(jps_a_p)%laction = .FALSE.
880	ssnd(jps_ht_p)%laction = .FALSE.
881	CASE ( 'ice only' )
882	ssnd(jps_a_p)%laction = .TRUE.
883	ssnd(jps_ht_p)%laction = .TRUE.
884	IF ( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
885	ssnd(jps_a_p)%nct = nn_cats_cpl
886	ssnd(jps_ht_p)%nct = nn_cats_cpl
887	ELSE
888	IF ( nn_cats_cpl > 1 ) THEN
889	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_mpnd%cldes if not exchanging category fields' )
890	ENDIF
891	ENDIF
892	CASE ( 'weighted ice' )
893	ssnd(jps_a_p)%laction = .TRUE.
894	ssnd(jps_ht_p)%laction = .TRUE.
895	IF ( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
896	ssnd(jps_a_p)%nct = nn_cats_cpl
897	ssnd(jps_ht_p)%nct = nn_cats_cpl
898	ENDIF
899	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_mpnd%cldes; '//sn_snd_mpnd%cldes )
900	END SELECT
901
902	! ! ------------------------- !
903	! ! Surface current !
904	! ! ------------------------- !
905	! ocean currents ! ice velocities
906	ssnd(jps_ocx1)%clname = 'O_OCurx1' ; ssnd(jps_ivx1)%clname = 'O_IVelx1'
907	ssnd(jps_ocy1)%clname = 'O_OCury1' ; ssnd(jps_ivy1)%clname = 'O_IVely1'
908	ssnd(jps_ocz1)%clname = 'O_OCurz1' ; ssnd(jps_ivz1)%clname = 'O_IVelz1'
909	ssnd(jps_ocxw)%clname = 'O_OCurxw'
910	ssnd(jps_ocyw)%clname = 'O_OCuryw'
911	!
912	ssnd(jps_ocx1:jps_ivz1)%nsgn = -1. ! vectors: change of the sign at the north fold
913
914	IF( sn_snd_crt%clvgrd == 'U,V' ) THEN
915	ssnd(jps_ocx1)%clgrid = 'U' ; ssnd(jps_ocy1)%clgrid = 'V'
916	ELSE IF( sn_snd_crt%clvgrd /= 'T' ) THEN
917	CALL ctl_stop( 'sn_snd_crt%clvgrd must be equal to T' )
918	ENDIF
919	ssnd(jps_ocx1:jps_ivz1)%laction = .TRUE. ! default: all are send
920	IF( TRIM( sn_snd_crt%clvref ) == 'spherical' ) ssnd( (/jps_ocz1, jps_ivz1/) )%laction = .FALSE.
921	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) ssnd(jps_ocx1:jps_ivz1)%nsgn = 1.
922	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
923	CASE( 'none' ) ; ssnd(jps_ocx1:jps_ivz1)%laction = .FALSE.
924	CASE( 'oce only' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
925	CASE( 'weighted oce and ice' ) ! nothing to do
926	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
927	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crt%cldes' )
928	END SELECT
929
930	ssnd(jps_ocxw:jps_ocyw)%nsgn = -1. ! vectors: change of the sign at the north fold
931
932	IF( sn_snd_crtw%clvgrd == 'U,V' ) THEN
933	ssnd(jps_ocxw)%clgrid = 'U' ; ssnd(jps_ocyw)%clgrid = 'V'
934	ELSE IF( sn_snd_crtw%clvgrd /= 'T' ) THEN
935	CALL ctl_stop( 'sn_snd_crtw%clvgrd must be equal to T' )
936	ENDIF
937	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) ssnd(jps_ocxw:jps_ocyw)%nsgn = 1.
938	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
939	CASE( 'none' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .FALSE.
940	CASE( 'oce only' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .TRUE.
941	CASE( 'weighted oce and ice' ) ! nothing to do
942	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
943	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crtw%cldes' )
944	END SELECT
945
946	! ! ------------------------- !
947	! ! CO2 flux !
948	! ! ------------------------- !
949	ssnd(jps_co2)%clname = 'O_CO2FLX' ; IF( TRIM(sn_snd_co2%cldes) == 'coupled' ) ssnd(jps_co2 )%laction = .TRUE.
950	!
951	! ! ------------------------- !
952	! ! Sea surface freezing temp !
953	! ! ------------------------- !
954	! needed by Met Office
955	ssnd(jps_sstfrz)%clname = 'O_SSTFrz' ; IF( TRIM(sn_snd_sstfrz%cldes) == 'coupled' ) ssnd(jps_sstfrz)%laction = .TRUE.
956	!
957	! ! ------------------------- !
958	! ! Ice conductivity !
959	! ! ------------------------- !
960	! needed by Met Office
961	! Note that ultimately we will move to passing an ocean effective conductivity as well so there
962	! will be some changes to the parts of the code which currently relate only to ice conductivity
963	ssnd(jps_ttilyr )%clname = 'O_TtiLyr'
964	SELECT CASE ( TRIM( sn_snd_ttilyr%cldes ) )
965	CASE ( 'none' )
966	ssnd(jps_ttilyr)%laction = .FALSE.
967	CASE ( 'ice only' )
968	ssnd(jps_ttilyr)%laction = .TRUE.
969	IF ( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) THEN
970	ssnd(jps_ttilyr)%nct = nn_cats_cpl
971	ELSE
972	IF ( nn_cats_cpl > 1 ) THEN
973	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_ttilyr%cldes if not exchanging category fields' )
974	ENDIF
975	ENDIF
976	CASE ( 'weighted ice' )
977	ssnd(jps_ttilyr)%laction = .TRUE.
978	IF ( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) ssnd(jps_ttilyr)%nct = nn_cats_cpl
979	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_ttilyr%cldes;'//sn_snd_ttilyr%cldes )
980	END SELECT
981
982	ssnd(jps_kice )%clname = 'OIceKn'
983	SELECT CASE ( TRIM( sn_snd_cond%cldes ) )
984	CASE ( 'none' )
985	ssnd(jps_kice)%laction = .FALSE.
986	CASE ( 'ice only' )
987	ssnd(jps_kice)%laction = .TRUE.
988	IF ( TRIM( sn_snd_cond%clcat ) == 'yes' ) THEN
989	ssnd(jps_kice)%nct = nn_cats_cpl
990	ELSE
991	IF ( nn_cats_cpl > 1 ) THEN
992	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_cond%cldes if not exchanging category fields' )
993	ENDIF
994	ENDIF
995	CASE ( 'weighted ice' )
996	ssnd(jps_kice)%laction = .TRUE.
997	IF ( TRIM( sn_snd_cond%clcat ) == 'yes' ) ssnd(jps_kice)%nct = nn_cats_cpl
998	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_cond%cldes;'//sn_snd_cond%cldes )
999	END SELECT
1000	!
1001	! ! ------------------------- !
1002	! ! Sea surface height !
1003	! ! ------------------------- !
1004	ssnd(jps_wlev)%clname = 'O_Wlevel' ; IF( TRIM(sn_snd_wlev%cldes) == 'coupled' ) ssnd(jps_wlev)%laction = .TRUE.
1005
1006	! ! ------------------------------- !
1007	! ! OPA-SAS coupling - snd by opa !
1008	! ! ------------------------------- !
1009	ssnd(jps_ssh )%clname = 'O_SSHght'
1010	ssnd(jps_soce )%clname = 'O_SSSal'
1011	ssnd(jps_e3t1st)%clname = 'O_E3T1st'
1012	ssnd(jps_fraqsr)%clname = 'O_FraQsr'
1013	!
1014	IF( nn_components == jp_iam_opa ) THEN
1015	ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
1016	ssnd( (/jps_toce, jps_soce, jps_ssh, jps_fraqsr, jps_ocx1, jps_ocy1/) )%laction = .TRUE.
1017	ssnd( jps_e3t1st )%laction = .NOT.ln_linssh
1018	! vector definition: not used but cleaner...
1019	ssnd(jps_ocx1)%clgrid = 'U' ! oce components given at U-point
1020	ssnd(jps_ocy1)%clgrid = 'V' ! and V-point
1021	sn_snd_crt%clvgrd = 'U,V'
1022	sn_snd_crt%clvor = 'local grid'
1023	sn_snd_crt%clvref = 'spherical'
1024	!
1025	IF(lwp) THEN ! control print
1026	WRITE(numout,*)
1027	WRITE(numout,*)' sent fields to SAS component '
1028	WRITE(numout,*)' sea surface temperature (T before, Celsius) '
1029	WRITE(numout,*)' sea surface salinity '
1030	WRITE(numout,*)' surface currents U,V on local grid and spherical coordinates'
1031	WRITE(numout,*)' sea surface height '
1032	WRITE(numout,*)' thickness of first ocean T level '
1033	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
1034	WRITE(numout,*)
1035	ENDIF
1036	ENDIF
1037	! ! ------------------------------- !
1038	! ! OPA-SAS coupling - snd by sas !
1039	! ! ------------------------------- !
1040	ssnd(jps_sflx )%clname = 'I_SFLX'
1041	ssnd(jps_fice2 )%clname = 'IIceFrc'
1042	ssnd(jps_qsroce)%clname = 'I_QsrOce'
1043	ssnd(jps_qnsoce)%clname = 'I_QnsOce'
1044	ssnd(jps_oemp )%clname = 'IOEvaMPr'
1045	ssnd(jps_otx1 )%clname = 'I_OTaux1'
1046	ssnd(jps_oty1 )%clname = 'I_OTauy1'
1047	ssnd(jps_rnf )%clname = 'I_Runoff'
1048	ssnd(jps_taum )%clname = 'I_TauMod'
1049	!
1050	IF( nn_components == jp_iam_sas ) THEN
1051	IF( .NOT. ln_cpl ) ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
1052	ssnd( (/jps_qsroce, jps_qnsoce, jps_oemp, jps_fice2, jps_sflx, jps_otx1, jps_oty1, jps_taum/) )%laction = .TRUE.
1053	!
1054	! Change first letter to couple with atmosphere if already coupled with sea_ice
1055	! this is nedeed as each variable name used in the namcouple must be unique:
1056	! for example O_SSTSST sent by OPA to SAS and therefore S_SSTSST sent by SAS to the Atmosphere
1057	DO jn = 1, jpsnd
1058	IF ( ssnd(jn)%clname(1:1) == "O" ) ssnd(jn)%clname = "S"//ssnd(jn)%clname(2:LEN(ssnd(jn)%clname))
1059	END DO
1060	!
1061	IF(lwp) THEN ! control print
1062	WRITE(numout,*)
1063	IF( .NOT. ln_cpl ) THEN
1064	WRITE(numout,*)' sent fields to OPA component '
1065	ELSE
1066	WRITE(numout,*)' Additional sent fields to OPA component : '
1067	ENDIF
1068	WRITE(numout,*)' ice cover '
1069	WRITE(numout,*)' oce only EMP '
1070	WRITE(numout,*)' salt flux '
1071	WRITE(numout,*)' mixed oce-ice solar flux '
1072	WRITE(numout,*)' mixed oce-ice non solar flux '
1073	WRITE(numout,*)' wind stress U,V components'
1074	WRITE(numout,*)' wind stress module'
1075	ENDIF
1076	ENDIF
1077
1078	!
1079	! ================================ !
1080	! initialisation of the coupler !
1081	! ================================ !
1082
1083	CALL cpl_define(jprcv, jpsnd, nn_cplmodel)
1084
1085	IF (ln_usecplmask) THEN
1086	xcplmask(:,:,:) = 0.
1087	CALL iom_open( 'cplmask', inum )
1088	CALL iom_get( inum, jpdom_unknown, 'cplmask', xcplmask(1:nlci,1:nlcj,1:nn_cplmodel), &
1089	& kstart = (/ mig(1),mjg(1),1 /), kcount = (/ nlci,nlcj,nn_cplmodel /) )
1090	CALL iom_close( inum )
1091	ELSE
1092	xcplmask(:,:,:) = 1.
1093	ENDIF
1094	xcplmask(:,:,0) = 1. - SUM( xcplmask(:,:,1:nn_cplmodel), dim = 3 )
1095	!
1096	END SUBROUTINE sbc_cpl_init
1097
1098
1099	SUBROUTINE sbc_cpl_rcv( kt, k_fsbc, k_ice )
1100	!!----------------------------------------------------------------------
1101	!! * ROUTINE sbc_cpl_rcv *
1102	!!
1103	!! ** Purpose : provide the stress over the ocean and, if no sea-ice,
1104	!! provide the ocean heat and freshwater fluxes.
1105	!!
1106	!! ** Method : - Receive all the atmospheric fields (stored in frcv array). called at each time step.
1107	!! OASIS controls if there is something do receive or not. nrcvinfo contains the info
1108	!! to know if the field was really received or not
1109	!!
1110	!! --> If ocean stress was really received:
1111	!!
1112	!! - transform the received ocean stress vector from the received
1113	!! referential and grid into an atmosphere-ocean stress in
1114	!! the (i,j) ocean referencial and at the ocean velocity point.
1115	!! The received stress are :
1116	!! - defined by 3 components (if cartesian coordinate)
1117	!! or by 2 components (if spherical)
1118	!! - oriented along geographical coordinate (if eastward-northward)
1119	!! or along the local grid coordinate (if local grid)
1120	!! - given at U- and V-point, resp. if received on 2 grids
1121	!! or at T-point if received on 1 grid
1122	!! Therefore and if necessary, they are successively
1123	!! processed in order to obtain them
1124	!! first as 2 components on the sphere
1125	!! second as 2 components oriented along the local grid
1126	!! third as 2 components on the U,V grid
1127	!!
1128	!! -->
1129	!!
1130	!! - In 'ocean only' case, non solar and solar ocean heat fluxes
1131	!! and total ocean freshwater fluxes
1132	!!
1133	!! ** Method : receive all fields from the atmosphere and transform
1134	!! them into ocean surface boundary condition fields
1135	!!
1136	!! ** Action : update utau, vtau ocean stress at U,V grid
1137	!! taum wind stress module at T-point
1138	!! wndm wind speed module at T-point over free ocean or leads in presence of sea-ice
1139	!! qns non solar heat fluxes including emp heat content (ocean only case)
1140	!! and the latent heat flux of solid precip. melting
1141	!! qsr solar ocean heat fluxes (ocean only case)
1142	!! emp upward mass flux [evap. - precip. (- runoffs) (- calving)] (ocean only case)
1143	!!----------------------------------------------------------------------
1144	USE zdf_oce, ONLY : ln_zdfswm
1145	!
1146	INTEGER, INTENT(in) :: kt ! ocean model time step index
1147	INTEGER, INTENT(in) :: k_fsbc ! frequency of sbc (-> ice model) computation
1148	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
1149	!!
1150	LOGICAL :: llnewtx, llnewtau ! update wind stress components and module??
1151	INTEGER :: ji, jj, jn ! dummy loop indices
1152	INTEGER :: isec ! number of seconds since nit000 (assuming rdt did not change since nit000)
1153	REAL(wp) :: zcumulneg, zcumulpos ! temporary scalars
1154	REAL(wp) :: zcoef ! temporary scalar
1155	REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3
1156	REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient
1157	REAL(wp) :: zzx, zzy ! temporary variables
1158	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty, zmsk, zemp, zqns, zqsr, zcloud_fra
1159	!!----------------------------------------------------------------------
1160	!
1161	IF( kt == nit000 ) THEN
1162	! cannot be done in the init phase when we use agrif as cpl_freq requires that oasis_enddef is done
1163	ncpl_qsr_freq = cpl_freq( 'O_QsrOce' ) + cpl_freq( 'O_QsrMix' ) + cpl_freq( 'I_QsrOce' ) + cpl_freq( 'I_QsrMix' )
1164	IF( ln_dm2dc .AND. ncpl_qsr_freq /= 86400 ) &
1165	& CALL ctl_stop( 'sbc_cpl_rcv: diurnal cycle reconstruction (ln_dm2dc) needs daily couping for solar radiation' )
1166	ncpl_qsr_freq = 86400 / ncpl_qsr_freq ! used by top
1167	ENDIF
1168	!
1169	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1170	!
1171	! ! ======================================================= !
1172	! ! Receive all the atmos. fields (including ice information)
1173	! ! ======================================================= !
1174	isec = ( kt - nit000 ) * NINT( rdt ) ! date of exchanges
1175	DO jn = 1, jprcv ! received fields sent by the atmosphere
1176	IF( srcv(jn)%laction ) CALL cpl_rcv( jn, isec, frcv(jn)%z3, xcplmask(:,:,1:nn_cplmodel), nrcvinfo(jn) )
1177	END DO
1178
1179	! ! ========================= !
1180	IF( srcv(jpr_otx1)%laction ) THEN ! ocean stress components !
1181	! ! ========================= !
1182	! define frcv(jpr_otx1)%z3(:,:,1) and frcv(jpr_oty1)%z3(:,:,1): stress at U/V point along model grid
1183	! => need to be done only when we receive the field
1184	IF( nrcvinfo(jpr_otx1) == OASIS_Rcv ) THEN
1185	!
1186	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1187	! ! (cartesian to spherical -> 3 to 2 components)
1188	!
1189	CALL geo2oce( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), frcv(jpr_otz1)%z3(:,:,1), &
1190	& srcv(jpr_otx1)%clgrid, ztx, zty )
1191	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1192	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1193	!
1194	IF( srcv(jpr_otx2)%laction ) THEN
1195	CALL geo2oce( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), frcv(jpr_otz2)%z3(:,:,1), &
1196	& srcv(jpr_otx2)%clgrid, ztx, zty )
1197	frcv(jpr_otx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1198	frcv(jpr_oty2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1199	ENDIF
1200	!
1201	ENDIF
1202	!
1203	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1204	! ! (geographical to local grid -> rotate the components)
1205	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->i', ztx )
1206	IF( srcv(jpr_otx2)%laction ) THEN
1207	CALL rot_rep( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), srcv(jpr_otx2)%clgrid, 'en->j', zty )
1208	ELSE
1209	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->j', zty )
1210	ENDIF
1211	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1212	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 2nd grid
1213	ENDIF
1214	!
1215	IF( srcv(jpr_otx1)%clgrid == 'T' ) THEN
1216	DO jj = 2, jpjm1 ! T ==> (U,V)
1217	DO ji = fs_2, fs_jpim1 ! vector opt.
1218	frcv(jpr_otx1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_otx1)%z3(ji+1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1) )
1219	frcv(jpr_oty1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_oty1)%z3(ji ,jj+1,1) + frcv(jpr_oty1)%z3(ji,jj,1) )
1220	END DO
1221	END DO
1222	CALL lbc_lnk_multi( 'sbccpl', frcv(jpr_otx1)%z3(:,:,1), 'U', -1., frcv(jpr_oty1)%z3(:,:,1), 'V', -1. )
1223	ENDIF
1224	llnewtx = .TRUE.
1225	ELSE
1226	llnewtx = .FALSE.
1227	ENDIF
1228	! ! ========================= !
1229	ELSE ! No dynamical coupling !
1230	! ! ========================= !
1231	frcv(jpr_otx1)%z3(:,:,1) = 0.e0 ! here simply set to zero
1232	frcv(jpr_oty1)%z3(:,:,1) = 0.e0 ! an external read in a file can be added instead
1233	llnewtx = .TRUE.
1234	!
1235	ENDIF
1236	! ! ========================= !
1237	! ! wind stress module ! (taum)
1238	! ! ========================= !
1239	IF( .NOT. srcv(jpr_taum)%laction ) THEN ! compute wind stress module from its components if not received
1240	! => need to be done only when otx1 was changed
1241	IF( llnewtx ) THEN
1242	DO jj = 2, jpjm1
1243	DO ji = fs_2, fs_jpim1 ! vect. opt.
1244	zzx = frcv(jpr_otx1)%z3(ji-1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1)
1245	zzy = frcv(jpr_oty1)%z3(ji ,jj-1,1) + frcv(jpr_oty1)%z3(ji,jj,1)
1246	frcv(jpr_taum)%z3(ji,jj,1) = 0.5 * SQRT( zzx * zzx + zzy * zzy )
1247	END DO
1248	END DO
1249	CALL lbc_lnk( 'sbccpl', frcv(jpr_taum)%z3(:,:,1), 'T', 1. )
1250	llnewtau = .TRUE.
1251	ELSE
1252	llnewtau = .FALSE.
1253	ENDIF
1254	ELSE
1255	llnewtau = nrcvinfo(jpr_taum) == OASIS_Rcv
1256	! Stress module can be negative when received (interpolation problem)
1257	IF( llnewtau ) THEN
1258	frcv(jpr_taum)%z3(:,:,1) = MAX( 0._wp, frcv(jpr_taum)%z3(:,:,1) )
1259	ENDIF
1260	ENDIF
1261	!
1262	! ! ========================= !
1263	! ! 10 m wind speed ! (wndm)
1264	! ! ========================= !
1265	IF( .NOT. srcv(jpr_w10m)%laction ) THEN ! compute wind spreed from wind stress module if not received
1266	! => need to be done only when taumod was changed
1267	IF( llnewtau ) THEN
1268	zcoef = 1. / ( zrhoa * zcdrag )
1269	DO jj = 1, jpj
1270	DO ji = 1, jpi
1271	frcv(jpr_w10m)%z3(ji,jj,1) = SQRT( frcv(jpr_taum)%z3(ji,jj,1) * zcoef )
1272	END DO
1273	END DO
1274	ENDIF
1275	ENDIF
1276	!!$ ! ! ========================= !
1277	!!$ SELECT CASE( TRIM( sn_rcv_clouds%cldes ) ) ! cloud fraction !
1278	!!$ ! ! ========================= !
1279	!!$ cloud_fra(:,:) = frcv(jpr_clfra)*z3(:,:,1)
1280	!!$ END SELECT
1281	!!$
1282	zcloud_fra(:,:) = pp_cldf ! should be real cloud fraction instead (as in the bulk) but needs to be read from atm.
1283	IF( ln_mixcpl ) THEN
1284	cloud_fra(:,:) = cloud_fra(:,:) * xcplmask(:,:,0) + zcloud_fra(:,:)* zmsk(:,:)
1285	ELSE
1286	cloud_fra(:,:) = zcloud_fra(:,:)
1287	ENDIF
1288	! ! ========================= !
1289	! u(v)tau and taum will be modified by ice model
1290	! -> need to be reset before each call of the ice/fsbc
1291	IF( MOD( kt-1, k_fsbc ) == 0 ) THEN
1292	!
1293	IF( ln_mixcpl ) THEN
1294	utau(:,:) = utau(:,:) * xcplmask(:,:,0) + frcv(jpr_otx1)%z3(:,:,1) * zmsk(:,:)
1295	vtau(:,:) = vtau(:,:) * xcplmask(:,:,0) + frcv(jpr_oty1)%z3(:,:,1) * zmsk(:,:)
1296	taum(:,:) = taum(:,:) * xcplmask(:,:,0) + frcv(jpr_taum)%z3(:,:,1) * zmsk(:,:)
1297	wndm(:,:) = wndm(:,:) * xcplmask(:,:,0) + frcv(jpr_w10m)%z3(:,:,1) * zmsk(:,:)
1298	ELSE
1299	utau(:,:) = frcv(jpr_otx1)%z3(:,:,1)
1300	vtau(:,:) = frcv(jpr_oty1)%z3(:,:,1)
1301	taum(:,:) = frcv(jpr_taum)%z3(:,:,1)
1302	wndm(:,:) = frcv(jpr_w10m)%z3(:,:,1)
1303	ENDIF
1304	CALL iom_put( "taum_oce", taum ) ! output wind stress module
1305	!
1306	ENDIF
1307
1308	! ! ================== !
1309	! ! atmosph. CO2 (ppm) !
1310	! ! ================== !
1311	IF( srcv(jpr_co2)%laction ) atm_co2(:,:) = frcv(jpr_co2)%z3(:,:,1)
1312	!
1313	! ! ========================= !
1314	! ! Mean Sea Level Pressure ! (taum)
1315	! ! ========================= !
1316	IF( srcv(jpr_mslp)%laction ) THEN ! UKMO SHELF effect of atmospheric pressure on SSH
1317	IF( kt /= nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) !* Swap of ssh_ib fields
1318
1319	r1_grau = 1.e0 / (grav * rau0) !* constant for optimization
1320	ssh_ib(:,:) = - ( frcv(jpr_mslp)%z3(:,:,1) - rpref ) * r1_grau ! equivalent ssh (inverse barometer)
1321	apr (:,:) = frcv(jpr_mslp)%z3(:,:,1) !atmospheric pressure
1322
1323	IF( kt == nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) ! correct this later (read from restart if possible)
1324	END IF
1325	!
1326	IF( ln_sdw ) THEN ! Stokes Drift correction activated
1327	! ! ========================= !
1328	! ! Stokes drift u !
1329	! ! ========================= !
1330	IF( srcv(jpr_sdrftx)%laction ) ut0sd(:,:) = frcv(jpr_sdrftx)%z3(:,:,1)
1331	!
1332	! ! ========================= !
1333	! ! Stokes drift v !
1334	! ! ========================= !
1335	IF( srcv(jpr_sdrfty)%laction ) vt0sd(:,:) = frcv(jpr_sdrfty)%z3(:,:,1)
1336	!
1337	! ! ========================= !
1338	! ! Wave mean period !
1339	! ! ========================= !
1340	IF( srcv(jpr_wper)%laction ) wmp(:,:) = frcv(jpr_wper)%z3(:,:,1)
1341	!
1342	! ! ========================= !
1343	! ! Significant wave height !
1344	! ! ========================= !
1345	IF( srcv(jpr_hsig)%laction ) hsw(:,:) = frcv(jpr_hsig)%z3(:,:,1)
1346	!
1347	! ! ========================= !
1348	! ! Wave peak frequency !
1349	! ! ========================= !
1350	IF( srcv(jpr_wfreq)%laction ) wfreq(:,:) = frcv(jpr_wfreq)%z3(:,:,1)
1351	!
1352	! ! ========================= !
1353	! ! Vertical mixing Qiao !
1354	! ! ========================= !
1355	IF( srcv(jpr_wnum)%laction .AND. ln_zdfswm ) wnum(:,:) = frcv(jpr_wnum)%z3(:,:,1)
1356
1357	! Calculate the 3D Stokes drift both in coupled and not fully uncoupled mode
1358	IF( srcv(jpr_sdrftx)%laction .OR. srcv(jpr_sdrfty)%laction .OR. srcv(jpr_wper)%laction &
1359	.OR. srcv(jpr_hsig)%laction .OR. srcv(jpr_wfreq)%laction) THEN
1360	CALL sbc_stokes()
1361	ENDIF
1362	ENDIF
1363	! ! ========================= !
1364	! ! Stress adsorbed by waves !
1365	! ! ========================= !
1366	IF( srcv(jpr_tauwoc)%laction .AND. ln_tauwoc ) tauoc_wave(:,:) = frcv(jpr_tauwoc)%z3(:,:,1)
1367
1368	! ! ========================= !
1369	! ! Stress component by waves !
1370	! ! ========================= !
1371	IF( srcv(jpr_tauwx)%laction .AND. srcv(jpr_tauwy)%laction .AND. ln_tauw ) THEN
1372	tauw_x(:,:) = frcv(jpr_tauwx)%z3(:,:,1)
1373	tauw_y(:,:) = frcv(jpr_tauwy)%z3(:,:,1)
1374	ENDIF
1375
1376	! ! ========================= !
1377	! ! Wave drag coefficient !
1378	! ! ========================= !
1379	IF( srcv(jpr_wdrag)%laction .AND. ln_cdgw ) cdn_wave(:,:) = frcv(jpr_wdrag)%z3(:,:,1)
1380
1381	! Fields received by SAS when OASIS coupling
1382	! (arrays no more filled at sbcssm stage)
1383	! ! ================== !
1384	! ! SSS !
1385	! ! ================== !
1386	IF( srcv(jpr_soce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1387	sss_m(:,:) = frcv(jpr_soce)%z3(:,:,1)
1388	CALL iom_put( 'sss_m', sss_m )
1389	ENDIF
1390	!
1391	! ! ================== !
1392	! ! SST !
1393	! ! ================== !
1394	IF( srcv(jpr_toce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1395	sst_m(:,:) = frcv(jpr_toce)%z3(:,:,1)
1396	IF( srcv(jpr_soce)%laction .AND. l_useCT ) THEN ! make sure that sst_m is the potential temperature
1397	sst_m(:,:) = eos_pt_from_ct( sst_m(:,:), sss_m(:,:) )
1398	ENDIF
1399	ENDIF
1400	! ! ================== !
1401	! ! SSH !
1402	! ! ================== !
1403	IF( srcv(jpr_ssh )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1404	ssh_m(:,:) = frcv(jpr_ssh )%z3(:,:,1)
1405	CALL iom_put( 'ssh_m', ssh_m )
1406	ENDIF
1407	! ! ================== !
1408	! ! surface currents !
1409	! ! ================== !
1410	IF( srcv(jpr_ocx1)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1411	ssu_m(:,:) = frcv(jpr_ocx1)%z3(:,:,1)
1412	ub (:,:,1) = ssu_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1413	un (:,:,1) = ssu_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1414	CALL iom_put( 'ssu_m', ssu_m )
1415	ENDIF
1416	IF( srcv(jpr_ocy1)%laction ) THEN
1417	ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
1418	vb (:,:,1) = ssv_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1419	vn (:,:,1) = ssv_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1420	CALL iom_put( 'ssv_m', ssv_m )
1421	ENDIF
1422	! ! ======================== !
1423	! ! first T level thickness !
1424	! ! ======================== !
1425	IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1426	e3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
1427	CALL iom_put( 'e3t_m', e3t_m(:,:) )
1428	ENDIF
1429	! ! ================================ !
1430	! ! fraction of solar net radiation !
1431	! ! ================================ !
1432	IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1433	frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
1434	CALL iom_put( 'frq_m', frq_m )
1435	ENDIF
1436
1437	! ! ========================= !
1438	IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
1439	! ! ========================= !
1440	!
1441	! ! total freshwater fluxes over the ocean (emp)
1442	IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
1443	SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
1444	CASE( 'conservative' )
1445	zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
1446	CASE( 'oce only', 'oce and ice' )
1447	zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
1448	CASE default
1449	CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
1450	END SELECT
1451	ELSE
1452	zemp(:,:) = 0._wp
1453	ENDIF
1454	!
1455	! ! runoffs and calving (added in emp)
1456	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1457	IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
1458
1459	IF( srcv(jpr_icb)%laction ) THEN
1460	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1461	rnf(:,:) = rnf(:,:) + fwficb(:,:) ! iceberg added to runfofs
1462	ENDIF
1463	IF( srcv(jpr_isf)%laction ) fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1) ! fresh water flux from the isf (fwfisf <0 mean melting)
1464
1465	IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
1466	ELSE ; emp(:,:) = zemp(:,:)
1467	ENDIF
1468	!
1469	! ! non solar heat flux over the ocean (qns)
1470	IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1471	ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1472	ELSE ; zqns(:,:) = 0._wp
1473	END IF
1474	! update qns over the free ocean with:
1475	IF( nn_components /= jp_iam_opa ) THEN
1476	zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
1477	IF( srcv(jpr_snow )%laction ) THEN
1478	zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * rLfus ! energy for melting solid precipitation over the free ocean
1479	ENDIF
1480	ENDIF
1481	!
1482	IF( srcv(jpr_icb)%laction ) zqns(:,:) = zqns(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove heat content associated to iceberg melting
1483	!
1484	IF( ln_mixcpl ) THEN ; qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
1485	ELSE ; qns(:,:) = zqns(:,:)
1486	ENDIF
1487
1488	! ! solar flux over the ocean (qsr)
1489	IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
1490	ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
1491	ELSE ; zqsr(:,:) = 0._wp
1492	ENDIF
1493	IF( ln_dm2dc .AND. ln_cpl ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
1494	IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
1495	ELSE ; qsr(:,:) = zqsr(:,:)
1496	ENDIF
1497	!
1498	! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
1499	IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
1500	! Ice cover (received by opa in case of opa <-> sas coupling)
1501	IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
1502	!
1503	ENDIF
1504	!
1505	END SUBROUTINE sbc_cpl_rcv
1506
1507
1508	SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
1509	!!----------------------------------------------------------------------
1510	!! * ROUTINE sbc_cpl_ice_tau *
1511	!!
1512	!! ** Purpose : provide the stress over sea-ice in coupled mode
1513	!!
1514	!! ** Method : transform the received stress from the atmosphere into
1515	!! an atmosphere-ice stress in the (i,j) ocean referencial
1516	!! and at the velocity point of the sea-ice model:
1517	!! 'C'-grid : i- (j-) components given at U- (V-) point
1518	!!
1519	!! The received stress are :
1520	!! - defined by 3 components (if cartesian coordinate)
1521	!! or by 2 components (if spherical)
1522	!! - oriented along geographical coordinate (if eastward-northward)
1523	!! or along the local grid coordinate (if local grid)
1524	!! - given at U- and V-point, resp. if received on 2 grids
1525	!! or at a same point (T or I) if received on 1 grid
1526	!! Therefore and if necessary, they are successively
1527	!! processed in order to obtain them
1528	!! first as 2 components on the sphere
1529	!! second as 2 components oriented along the local grid
1530	!! third as 2 components on the ice grid point
1531	!!
1532	!! Except in 'oce and ice' case, only one vector stress field
1533	!! is received. It has already been processed in sbc_cpl_rcv
1534	!! so that it is now defined as (i,j) components given at U-
1535	!! and V-points, respectively.
1536	!!
1537	!! ** Action : return ptau_i, ptau_j, the stress over the ice
1538	!!----------------------------------------------------------------------
1539	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
1540	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
1541	!!
1542	INTEGER :: ji, jj ! dummy loop indices
1543	INTEGER :: itx ! index of taux over ice
1544	REAL(wp) :: zztmp1, zztmp2
1545	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty
1546	!!----------------------------------------------------------------------
1547	!
1548	IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
1549	ELSE ; itx = jpr_otx1
1550	ENDIF
1551
1552	! do something only if we just received the stress from atmosphere
1553	IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
1554	! ! ======================= !
1555	IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
1556	! ! ======================= !
1557	!
1558	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1559	! ! (cartesian to spherical -> 3 to 2 components)
1560	CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
1561	& srcv(jpr_itx1)%clgrid, ztx, zty )
1562	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1563	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1564	!
1565	IF( srcv(jpr_itx2)%laction ) THEN
1566	CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
1567	& srcv(jpr_itx2)%clgrid, ztx, zty )
1568	frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1569	frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1570	ENDIF
1571	!
1572	ENDIF
1573	!
1574	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1575	! ! (geographical to local grid -> rotate the components)
1576	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
1577	IF( srcv(jpr_itx2)%laction ) THEN
1578	CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
1579	ELSE
1580	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
1581	ENDIF
1582	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1583	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
1584	ENDIF
1585	! ! ======================= !
1586	ELSE ! use ocean stress !
1587	! ! ======================= !
1588	frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
1589	frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
1590	!
1591	ENDIF
1592	! ! ======================= !
1593	! ! put on ice grid !
1594	! ! ======================= !
1595	!
1596	! j+1 j -----V---F
1597	! ice stress on ice velocity point ! \|
1598	! (C-grid ==>(U,V)) j \| T U
1599	! \| \|
1600	! j j-1 -I-------\|
1601	! (for I) \| \|
1602	! i-1 i i
1603	! i i+1 (for I)
1604	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1605	CASE( 'U' )
1606	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
1607	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1608	CASE( 'T' )
1609	DO jj = 2, jpjm1 ! T ==> (U,V)
1610	DO ji = fs_2, fs_jpim1 ! vector opt.
1611	! take care of the land-sea mask to avoid "pollution" of coastal stress. p[uv]taui used in frazil and rheology
1612	zztmp1 = 0.5_wp * ( 2. - umask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji+1,jj ,1) )
1613	zztmp2 = 0.5_wp * ( 2. - vmask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji ,jj+1,1) )
1614	p_taui(ji,jj) = zztmp1 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
1615	p_tauj(ji,jj) = zztmp2 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
1616	END DO
1617	END DO
1618	CALL lbc_lnk_multi( 'sbccpl', p_taui, 'U', -1., p_tauj, 'V', -1. )
1619	END SELECT
1620
1621	ENDIF
1622	!
1623	END SUBROUTINE sbc_cpl_ice_tau
1624
1625
1626	SUBROUTINE sbc_cpl_ice_flx( picefr, palbi, psst, pist, phs, phi )
1627	!!----------------------------------------------------------------------
1628	!! * ROUTINE sbc_cpl_ice_flx *
1629	!!
1630	!! ** Purpose : provide the heat and freshwater fluxes of the ocean-ice system
1631	!!
1632	!! ** Method : transform the fields received from the atmosphere into
1633	!! surface heat and fresh water boundary condition for the
1634	!! ice-ocean system. The following fields are provided:
1635	!! * total non solar, solar and freshwater fluxes (qns_tot,
1636	!! qsr_tot and emp_tot) (total means weighted ice-ocean flux)
1637	!! NB: emp_tot include runoffs and calving.
1638	!! * fluxes over ice (qns_ice, qsr_ice, emp_ice) where
1639	!! emp_ice = sublimation - solid precipitation as liquid
1640	!! precipitation are re-routed directly to the ocean and
1641	!! calving directly enter the ocean (runoffs are read but included in trasbc.F90)
1642	!! * solid precipitation (sprecip), used to add to qns_tot
1643	!! the heat lost associated to melting solid precipitation
1644	!! over the ocean fraction.
1645	!! * heat content of rain, snow and evap can also be provided,
1646	!! otherwise heat flux associated with these mass flux are
1647	!! guessed (qemp_oce, qemp_ice)
1648	!!
1649	!! - the fluxes have been separated from the stress as
1650	!! (a) they are updated at each ice time step compare to
1651	!! an update at each coupled time step for the stress, and
1652	!! (b) the conservative computation of the fluxes over the
1653	!! sea-ice area requires the knowledge of the ice fraction
1654	!! after the ice advection and before the ice thermodynamics,
1655	!! so that the stress is updated before the ice dynamics
1656	!! while the fluxes are updated after it.
1657	!!
1658	!! ** Details
1659	!! qns_tot = (1-a) * qns_oce + a * qns_ice => provided
1660	!! + qemp_oce + qemp_ice => recalculated and added up to qns
1661	!!
1662	!! qsr_tot = (1-a) * qsr_oce + a * qsr_ice => provided
1663	!!
1664	!! emp_tot = emp_oce + emp_ice => calving is provided and added to emp_tot (and emp_oce).
1665	!! runoff (which includes rivers+icebergs) and iceshelf
1666	!! are provided but not included in emp here. Only runoff will
1667	!! be included in emp in other parts of NEMO code
1668	!! ** Action : update at each nf_ice time step:
1669	!! qns_tot, qsr_tot non-solar and solar total heat fluxes
1670	!! qns_ice, qsr_ice non-solar and solar heat fluxes over the ice
1671	!! emp_tot total evaporation - precipitation(liquid and solid) (-calving)
1672	!! emp_ice ice sublimation - solid precipitation over the ice
1673	!! dqns_ice d(non-solar heat flux)/d(Temperature) over the ice
1674	!! sprecip solid precipitation over the ocean
1675	!!----------------------------------------------------------------------
1676	REAL(wp), INTENT(in) , DIMENSION(:,:) :: picefr ! ice fraction [0 to 1]
1677	! !! ! optional arguments, used only in 'mixed oce-ice' case or for Met-Office coupling
1678	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: palbi ! all skies ice albedo
1679	REAL(wp), INTENT(in) , DIMENSION(:,: ), OPTIONAL :: psst ! sea surface temperature [Celsius]
1680	REAL(wp), INTENT(inout), DIMENSION(:,:,:), OPTIONAL :: pist ! ice surface temperature [Kelvin] => inout for Met-Office
1681	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: phs ! snow depth [m]
1682	REAL(wp), INTENT(in) , DIMENSION(:,:,:), OPTIONAL :: phi ! ice thickness [m]
1683	!
1684	INTEGER :: ji, jj, jl ! dummy loop index
1685	REAL(wp), DIMENSION(jpi,jpj) :: zcptn, zcptrain, zcptsnw, ziceld, zmsk, zsnw
1686	REAL(wp), DIMENSION(jpi,jpj) :: zemp_tot, zemp_ice, zemp_oce, ztprecip, zsprecip , zevap_oce, zdevap_ice
1687	REAL(wp), DIMENSION(jpi,jpj) :: zqns_tot, zqns_oce, zqsr_tot, zqsr_oce, zqprec_ice, zqemp_oce, zqemp_ice
1688	REAL(wp), DIMENSION(jpi,jpj) :: zevap_ice_total
1689	REAL(wp), DIMENSION(jpi,jpj,jpl) :: zqns_ice, zqsr_ice, zdqns_ice, zqevap_ice, zevap_ice, zqtr_ice_top, ztsu
1690	REAL(wp), DIMENSION(jpi,jpj) :: ztri
1691	!!----------------------------------------------------------------------
1692	!
1693	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1694	ziceld(:,:) = 1._wp - picefr(:,:)
1695	zcptn (:,:) = rcp * sst_m(:,:)
1696
1697	#if defined key_si3
1698	! ! ========================= !
1699	SELECT CASE( TRIM( sn_rcv_iceflx%cldes ) ) ! ice topmelt and botmelt !
1700	! ! ========================= !
1701	CASE ('coupled')
1702	IF (ln_scale_ice_flux) THEN
1703	WHERE( a_i(:,:,:) > 1.e-10_wp )
1704	qml_ice(:,:,:) = frcv(jpr_topm)%z3(:,:,:) * a_i_last_couple(:,:,:) / a_i(:,:,:)
1705	qcn_ice(:,:,:) = frcv(jpr_botm)%z3(:,:,:) * a_i_last_couple(:,:,:) / a_i(:,:,:)
1706	ELSEWHERE
1707	qml_ice(:,:,:) = 0.0_wp
1708	qcn_ice(:,:,:) = 0.0_wp
1709	END WHERE
1710	ELSE
1711	qml_ice(:,:,:) = frcv(jpr_topm)%z3(:,:,:)
1712	qcn_ice(:,:,:) = frcv(jpr_botm)%z3(:,:,:)
1713	ENDIF
1714	END SELECT
1715	#endif
1716
1717	!
1718	! ! ========================= !
1719	! ! freshwater budget ! (emp_tot)
1720	! ! ========================= !
1721	!
1722	! ! solid Precipitation (sprecip)
1723	! ! liquid + solid Precipitation (tprecip)
1724	! ! total Evaporation - total Precipitation (emp_tot)
1725	! ! sublimation - solid precipitation (cell average) (emp_ice)
1726	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
1727	CASE( 'conservative' ) ! received fields: jpr_rain, jpr_snow, jpr_ievp, jpr_tevp
1728	zsprecip(:,:) = frcv(jpr_snow)%z3(:,:,1) ! May need to ensure positive here
1729	ztprecip(:,:) = frcv(jpr_rain)%z3(:,:,1) + zsprecip(:,:) ! May need to ensure positive here
1730	zemp_tot(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ztprecip(:,:)
1731	CASE( 'oce and ice' ) ! received fields: jpr_sbpr, jpr_semp, jpr_oemp, jpr_ievp
1732	zemp_tot(:,:) = ziceld(:,:) * frcv(jpr_oemp)%z3(:,:,1) + picefr(:,:) * frcv(jpr_sbpr)%z3(:,:,1)
1733	zemp_ice(:,:) = frcv(jpr_semp)%z3(:,:,1) * picefr(:,:)
1734	zsprecip(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_semp)%z3(:,:,1)
1735	ztprecip(:,:) = frcv(jpr_semp)%z3(:,:,1) - frcv(jpr_sbpr)%z3(:,:,1) + zsprecip(:,:)
1736	CASE( 'none' ) ! Not available as for now: needs additional coding below when computing zevap_oce
1737	! ! since fields received are not defined with none option
1738	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_emp value in namelist namsbc_cpl' )
1739	END SELECT
1740
1741	#if defined key_si3
1742
1743	! --- evaporation over ice (kg/m2/s) --- !
1744	IF (ln_scale_ice_flux) THEN ! typically met-office requirements
1745	IF (sn_rcv_emp%clcat == 'yes') THEN
1746	WHERE( a_i(:,:,:) > 1.e-10 ) ; zevap_ice(:,:,:) = frcv(jpr_ievp)%z3(:,:,:) * a_i_last_couple(:,:,:) / a_i(:,:,:)
1747	ELSEWHERE ; zevap_ice(:,:,:) = 0._wp
1748	END WHERE
1749	WHERE( picefr(:,:) > 1.e-10 ) ; zevap_ice_total(:,:) = SUM( zevap_ice(:,:,:) * a_i(:,:,:), dim=3 ) / picefr(:,:)
1750	ELSEWHERE ; zevap_ice_total(:,:) = 0._wp
1751	END WHERE
1752	ELSE
1753	WHERE( picefr(:,:) > 1.e-10 ) ; zevap_ice(:,:,1) = frcv(jpr_ievp)%z3(:,:,1) * SUM( a_i_last_couple, dim=3 ) / picefr(:,:)
1754	ELSEWHERE ; zevap_ice(:,:,1) = 0._wp
1755	END WHERE
1756	zevap_ice_total(:,:) = zevap_ice(:,:,1)
1757	DO jl = 2, jpl
1758	zevap_ice(:,:,jl) = zevap_ice(:,:,1)
1759	ENDDO
1760	ENDIF
1761	ELSE
1762	IF (sn_rcv_emp%clcat == 'yes') THEN
1763	zevap_ice(:,:,1:jpl) = frcv(jpr_ievp)%z3(:,:,1:jpl)
1764	WHERE( picefr(:,:) > 1.e-10 ) ; zevap_ice_total(:,:) = SUM( zevap_ice(:,:,:) * a_i(:,:,:), dim=3 ) / picefr(:,:)
1765	ELSEWHERE ; zevap_ice_total(:,:) = 0._wp
1766	END WHERE
1767	ELSE
1768	zevap_ice(:,:,1) = frcv(jpr_ievp)%z3(:,:,1)
1769	zevap_ice_total(:,:) = zevap_ice(:,:,1)
1770	DO jl = 2, jpl
1771	zevap_ice(:,:,jl) = zevap_ice(:,:,1)
1772	ENDDO
1773	ENDIF
1774	ENDIF
1775
1776	IF ( TRIM( sn_rcv_emp%cldes ) == 'conservative' ) THEN
1777	! For conservative case zemp_ice has not been defined yet. Do it now.
1778	zemp_ice(:,:) = zevap_ice_total(:,:) * picefr(:,:) - frcv(jpr_snow)%z3(:,:,1) * picefr(:,:)
1779	ENDIF
1780
1781	! zsnw = snow fraction over ice after wind blowing (=picefr if no blowing)
1782	zsnw(:,:) = 0._wp ; CALL ice_var_snwblow( ziceld, zsnw )
1783
1784	! --- evaporation minus precipitation corrected (because of wind blowing on snow) --- !
1785	zemp_ice(:,:) = zemp_ice(:,:) + zsprecip(:,:) * ( picefr(:,:) - zsnw(:,:) ) ! emp_ice = A * sublimation - zsnw * sprecip
1786	zemp_oce(:,:) = zemp_tot(:,:) - zemp_ice(:,:) ! emp_oce = emp_tot - emp_ice
1787
1788	! --- evaporation over ocean (used later for qemp) --- !
1789	zevap_oce(:,:) = frcv(jpr_tevp)%z3(:,:,1) - zevap_ice_total(:,:) * picefr(:,:)
1790
1791	! since the sensitivity of evap to temperature (devap/dT) is not prescribed by the atmosphere, we set it to 0
1792	! therefore, sublimation is not redistributed over the ice categories when no subgrid scale fluxes are provided by atm.
1793	zdevap_ice(:,:) = 0._wp
1794
1795	! --- Continental fluxes --- !
1796	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1797	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1798	ENDIF
1799	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot and emp_oce)
1800	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1801	zemp_oce(:,:) = zemp_oce(:,:) - frcv(jpr_cal)%z3(:,:,1)
1802	ENDIF
1803	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1804	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1805	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1806	ENDIF
1807	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1808	fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1809	ENDIF
1810
1811	IF( ln_mixcpl ) THEN
1812	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1813	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1814	emp_oce(:,:) = emp_oce(:,:) * xcplmask(:,:,0) + zemp_oce(:,:) * zmsk(:,:)
1815	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1816	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1817	DO jl = 1, jpl
1818	evap_ice (:,:,jl) = evap_ice (:,:,jl) * xcplmask(:,:,0) + zevap_ice (:,:,jl) * zmsk(:,:)
1819	devap_ice(:,:,jl) = devap_ice(:,:,jl) * xcplmask(:,:,0) + zdevap_ice(:,:) * zmsk(:,:)
1820	END DO
1821	ELSE
1822	emp_tot (:,:) = zemp_tot (:,:)
1823	emp_ice (:,:) = zemp_ice (:,:)
1824	emp_oce (:,:) = zemp_oce (:,:)
1825	sprecip (:,:) = zsprecip (:,:)
1826	tprecip (:,:) = ztprecip (:,:)
1827	evap_ice(:,:,:) = zevap_ice(:,:,:)
1828	DO jl = 1, jpl
1829	devap_ice(:,:,jl) = zdevap_ice(:,:)
1830	END DO
1831	ENDIF
1832
1833	#else
1834	zsnw(:,:) = picefr(:,:)
1835	! --- Continental fluxes --- !
1836	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1837	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1838	ENDIF
1839	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot)
1840	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1841	ENDIF
1842	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1843	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1844	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1845	ENDIF
1846	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1847	fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1848	ENDIF
1849	!
1850	IF( ln_mixcpl ) THEN
1851	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1852	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1853	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1854	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1855	ELSE
1856	emp_tot(:,:) = zemp_tot(:,:)
1857	emp_ice(:,:) = zemp_ice(:,:)
1858	sprecip(:,:) = zsprecip(:,:)
1859	tprecip(:,:) = ztprecip(:,:)
1860	ENDIF
1861	!
1862	#endif
1863
1864	! outputs
1865	!! IF( srcv(jpr_rnf)%laction ) CALL iom_put( 'runoffs' , rnf(:,:) * tmask(:,:,1) ) ! runoff
1866	!! IF( srcv(jpr_isf)%laction ) CALL iom_put( 'iceshelf_cea', -fwfisf(:,:) * tmask(:,:,1) ) ! iceshelf
1867	IF( srcv(jpr_cal)%laction ) CALL iom_put( 'calving_cea' , frcv(jpr_cal)%z3(:,:,1) * tmask(:,:,1) ) ! calving
1868	IF( srcv(jpr_icb)%laction ) CALL iom_put( 'iceberg_cea' , frcv(jpr_icb)%z3(:,:,1) * tmask(:,:,1) ) ! icebergs
1869	IF( iom_use('snowpre') ) CALL iom_put( 'snowpre' , sprecip(:,:) ) ! Snow
1870	IF( iom_use('precip') ) CALL iom_put( 'precip' , tprecip(:,:) ) ! total precipitation
1871	IF( iom_use('rain') ) CALL iom_put( 'rain' , tprecip(:,:) - sprecip(:,:) ) ! liquid precipitation
1872	IF( iom_use('snow_ao_cea') ) CALL iom_put( 'snow_ao_cea' , sprecip(:,:) * ( 1._wp - zsnw(:,:) ) ) ! Snow over ice-free ocean (cell average)
1873	IF( iom_use('snow_ai_cea') ) CALL iom_put( 'snow_ai_cea' , sprecip(:,:) * zsnw(:,:) ) ! Snow over sea-ice (cell average)
1874	IF( iom_use('rain_ao_cea') ) CALL iom_put( 'rain_ao_cea' , ( tprecip(:,:) - sprecip(:,:) ) * picefr(:,:) ) ! liquid precipitation over ocean (cell average)
1875	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)
1876	IF( iom_use('evap_ao_cea') ) CALL iom_put( 'evap_ao_cea' , ( frcv(jpr_tevp)%z3(:,:,1) &
1877	& - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) ) * tmask(:,:,1) ) ! ice-free oce evap (cell average)
1878	! note: runoff output is done in sbcrnf (which includes icebergs too) and iceshelf output is done in sbcisf
1879	!
1880	! ! ========================= !
1881	SELECT CASE( TRIM( sn_rcv_qns%cldes ) ) ! non solar heat fluxes ! (qns)
1882	! ! ========================= !
1883	CASE( 'oce only' ) ! the required field is directly provided
1884
1885	! Get the sea ice non solar heat flux from conductive, melting and sublimation fluxes
1886	IF( TRIM(sn_rcv_iceflx%cldes) == 'coupled' ) THEN
1887	zqns_ice(:,:,:) = qml_ice(:,:,:) + qcn_ice(:,:,:) + evap_ice(:,:,:) * rLsub
1888	ELSE
1889	zqns_ice(:,:,:) = 0._wp
1890	ENDIF
1891
1892	! Calculate the total non solar heat flux. The ocean only non solar heat flux (zqns_oce) will be recalculated after this CASE
1893	! statement to be consistent with other coupling methods even though .zqns_oce = frcv(jpr_qnsoce)%z3(:,:,1)
1894	zqns_tot(:,:) = frcv(jpr_qnsoce)%z3(:,:,1) * ziceld(:,:) + SUM( zqns_ice(:,:,:) * a_i(:,:,:), dim=3 )
1895
1896	CASE( 'conservative' ) ! the required fields are directly provided
1897	zqns_tot(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1898	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1899	zqns_ice(:,:,1:jpl) = frcv(jpr_qnsice)%z3(:,:,1:jpl)
1900	ELSE
1901	DO jl = 1, jpl
1902	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1) ! Set all category values equal
1903	END DO
1904	ENDIF
1905	CASE( 'oce and ice' ) ! the total flux is computed from ocean and ice fluxes
1906	zqns_tot(:,:) = ziceld(:,:) * frcv(jpr_qnsoce)%z3(:,:,1)
1907	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1908	DO jl=1,jpl
1909	zqns_tot(:,: ) = zqns_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qnsice)%z3(:,:,jl)
1910	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,jl)
1911	ENDDO
1912	ELSE
1913	zqns_tot(:,:) = zqns_tot(:,:) + picefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1914	DO jl = 1, jpl
1915	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1916	END DO
1917	ENDIF
1918	CASE( 'mixed oce-ice' ) ! the ice flux is cumputed from the total flux, the SST and ice informations
1919	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1920	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1921	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
1922	DO jl = 1, jpl
1923	zqns_ice(:,:,jl) = frcv(jpr_qnsmix)%z3(:,:,jl) &
1924	& + frcv(jpr_dqnsdt)%z3(:,:,jl) * ( pist(:,:,jl) - ( ( rt0 + psst(:,:) ) * ziceld(:,:) &
1925	& + pist(:,:,jl) * picefr(:,:) ) )
1926	END DO
1927	ELSE
1928	DO jl = 1, jpl
1929	zqns_ice(:,:,jl) = frcv(jpr_qnsmix)%z3(:,:, 1) &
1930	& + frcv(jpr_dqnsdt)%z3(:,:, 1) * ( pist(:,:,jl) - ( ( rt0 + psst(:,:) ) * ziceld(:,:) &
1931	& + pist(:,:,jl) * picefr(:,:) ) )
1932	END DO
1933	ENDIF
1934	END SELECT
1935	!
1936	! --- calving (removed from qns_tot) --- !
1937	IF( srcv(jpr_cal)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_cal)%z3(:,:,1) * rLfus ! remove latent heat of calving
1938	! we suppose it melts at 0deg, though it should be temp. of surrounding ocean
1939	! --- iceberg (removed from qns_tot) --- !
1940	IF( srcv(jpr_icb)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove latent heat of iceberg melting
1941
1942	#if defined key_si3
1943	! --- non solar flux over ocean --- !
1944	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
1945	zqns_oce = 0._wp
1946	WHERE( ziceld /= 0._wp ) zqns_oce(:,:) = ( zqns_tot(:,:) - SUM( a_i * zqns_ice, dim=3 ) ) / ziceld(:,:)
1947
1948	! Heat content per unit mass of snow (J/kg)
1949	WHERE( SUM( a_i, dim=3 ) > 1.e-10 ) ; zcptsnw(:,:) = rcpi * SUM( (tn_ice - rt0) * a_i, dim=3 ) / SUM( a_i, dim=3 )
1950	ELSEWHERE ; zcptsnw(:,:) = zcptn(:,:)
1951	ENDWHERE
1952	! Heat content per unit mass of rain (J/kg)
1953	zcptrain(:,:) = rcp * ( SUM( (tn_ice(:,:,:) - rt0) * a_i(:,:,:), dim=3 ) + sst_m(:,:) * ziceld(:,:) )
1954
1955	! --- enthalpy of snow precip over ice in J/m3 (to be used in 1D-thermo) --- !
1956	zqprec_ice(:,:) = rhos * ( zcptsnw(:,:) - rLfus )
1957
1958	! --- heat content of evap over ice in W/m2 (to be used in 1D-thermo) --- !
1959	DO jl = 1, jpl
1960	zqevap_ice(:,:,jl) = 0._wp ! should be -evap * ( ( Tice - rt0 ) * rcpi ) but atm. does not take it into account
1961	END DO
1962
1963	! --- heat flux associated with emp (W/m2) --- !
1964	zqemp_oce(:,:) = - zevap_oce(:,:) * zcptn (:,:) & ! evap
1965	& + ( ztprecip(:,:) - zsprecip(:,:) ) * zcptrain(:,:) & ! liquid precip
1966	& + zsprecip(:,:) * ( 1._wp - zsnw ) * ( zcptsnw (:,:) - rLfus ) ! solid precip over ocean + snow melting
1967	zqemp_ice(:,:) = zsprecip(:,:) * zsnw * ( zcptsnw (:,:) - rLfus ) ! solid precip over ice (qevap_ice=0 since atm. does not take it into account)
1968	!! zqemp_ice(:,:) = - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) * zcptsnw (:,:) & ! ice evap
1969	!! & + zsprecip(:,:) * zsnw * zqprec_ice(:,:) * r1_rhos ! solid precip over ice
1970
1971	! --- total non solar flux (including evap/precip) --- !
1972	zqns_tot(:,:) = zqns_tot(:,:) + zqemp_ice(:,:) + zqemp_oce(:,:)
1973
1974	! --- in case both coupled/forced are active, we must mix values --- !
1975	IF( ln_mixcpl ) THEN
1976	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1977	qns_oce(:,:) = qns_oce(:,:) * xcplmask(:,:,0) + zqns_oce(:,:)* zmsk(:,:)
1978	DO jl=1,jpl
1979	qns_ice (:,:,jl) = qns_ice (:,:,jl) * xcplmask(:,:,0) + zqns_ice (:,:,jl)* zmsk(:,:)
1980	qevap_ice(:,:,jl) = qevap_ice(:,:,jl) * xcplmask(:,:,0) + zqevap_ice(:,:,jl)* zmsk(:,:)
1981	ENDDO
1982	qprec_ice(:,:) = qprec_ice(:,:) * xcplmask(:,:,0) + zqprec_ice(:,:)* zmsk(:,:)
1983	qemp_oce (:,:) = qemp_oce(:,:) * xcplmask(:,:,0) + zqemp_oce(:,:)* zmsk(:,:)
1984	qemp_ice (:,:) = qemp_ice(:,:) * xcplmask(:,:,0) + zqemp_ice(:,:)* zmsk(:,:)
1985	ELSE
1986	qns_tot (:,: ) = zqns_tot (:,: )
1987	qns_oce (:,: ) = zqns_oce (:,: )
1988	qns_ice (:,:,:) = zqns_ice (:,:,:)
1989	qevap_ice(:,:,:) = zqevap_ice(:,:,:)
1990	qprec_ice(:,: ) = zqprec_ice(:,: )
1991	qemp_oce (:,: ) = zqemp_oce (:,: )
1992	qemp_ice (:,: ) = zqemp_ice (:,: )
1993	ENDIF
1994
1995	#else
1996	zcptsnw (:,:) = zcptn(:,:)
1997	zcptrain(:,:) = zcptn(:,:)
1998
1999	! clem: this formulation is certainly wrong... but better than it was...
2000	zqns_tot(:,:) = zqns_tot(:,:) & ! zqns_tot update over free ocean with:
2001	& - ( ziceld(:,:) * zsprecip(:,:) * rLfus ) & ! remove the latent heat flux of solid precip. melting
2002	& - ( zemp_tot(:,:) & ! remove the heat content of mass flux (assumed to be at SST)
2003	& - zemp_ice(:,:) ) * zcptn(:,:)
2004
2005	IF( ln_mixcpl ) THEN
2006	qns_tot(:,:) = qns(:,:) * ziceld(:,:) + SUM( qns_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
2007	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
2008	DO jl=1,jpl
2009	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
2010	ENDDO
2011	ELSE
2012	qns_tot(:,: ) = zqns_tot(:,: )
2013	qns_ice(:,:,:) = zqns_ice(:,:,:)
2014	ENDIF
2015
2016	#endif
2017	! outputs
2018	IF ( srcv(jpr_cal)%laction ) CALL iom_put('hflx_cal_cea' , - frcv(jpr_cal)%z3(:,:,1) * rLfus ) ! latent heat from calving
2019	IF ( srcv(jpr_icb)%laction ) CALL iom_put('hflx_icb_cea' , - frcv(jpr_icb)%z3(:,:,1) * rLfus ) ! latent heat from icebergs melting
2020	IF ( iom_use( 'hflx_rain_cea') ) CALL iom_put('hflx_rain_cea' , ( tprecip(:,:) - sprecip(:,:) ) * zcptrain(:,:) ) ! heat flux from rain (cell average)
2021	IF ( iom_use( 'hflx_evap_cea') ) CALL iom_put('hflx_evap_cea' , ( frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) ) &
2022	& * zcptn(:,:) * tmask(:,:,1) ) ! heat flux from evap (cell average)
2023	IF ( iom_use( 'hflx_prec_cea') ) CALL iom_put('hflx_prec_cea' , sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) & ! heat flux from all precip (cell avg)
2024	& + ( tprecip(:,:) - sprecip(:,:) ) * zcptrain(:,:) )
2025	IF ( iom_use( 'hflx_snow_cea') ) CALL iom_put('hflx_snow_cea' , sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) ) ! heat flux from snow (cell average)
2026	IF ( iom_use('hflx_snow_ao_cea') ) CALL iom_put('hflx_snow_ao_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) * ( 1._wp - zsnw(:,:) ) ) ! heat flux from snow (over ocean)
2027	IF ( iom_use('hflx_snow_ai_cea') ) CALL iom_put('hflx_snow_ai_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) * zsnw(:,:) ) ! heat flux from snow (over ice)
2028	! note: hflx for runoff and iceshelf are done in sbcrnf and sbcisf resp.
2029	!
2030	! ! ========================= !
2031	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) ) ! solar heat fluxes ! (qsr)
2032	! ! ========================= !
2033	CASE( 'oce only' )
2034	zqsr_tot(:,: ) = MAX( 0._wp , frcv(jpr_qsroce)%z3(:,:,1) ) * ziceld(:,:)
2035
2036	! For the Met Office the only sea ice solar flux is the transmitted qsr which is added onto zqsr_ice
2037	! further down. Therefore start zqsr_ice off at zero.
2038	zqsr_ice(:,:,:) = 0._wp
2039	CASE( 'conservative' )
2040	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
2041	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2042	zqsr_ice(:,:,1:jpl) = frcv(jpr_qsrice)%z3(:,:,1:jpl)
2043	ELSE
2044	! Set all category values equal for the moment
2045	DO jl = 1, jpl
2046	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
2047	END DO
2048	ENDIF
2049	CASE( 'oce and ice' )
2050	zqsr_tot(:,: ) = ziceld(:,:) * frcv(jpr_qsroce)%z3(:,:,1)
2051	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2052	DO jl = 1, jpl
2053	zqsr_tot(:,: ) = zqsr_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qsrice)%z3(:,:,jl)
2054	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,jl)
2055	END DO
2056	ELSE
2057	zqsr_tot(:,:) = zqsr_tot(:,:) + picefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
2058	DO jl = 1, jpl
2059	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
2060	END DO
2061	ENDIF
2062	CASE( 'mixed oce-ice' )
2063	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
2064	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
2065	! Create solar heat flux over ice using incoming solar heat flux and albedos
2066	! ( see OASIS3 user guide, 5th edition, p39 )
2067	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2068	DO jl = 1, jpl
2069	zqsr_ice(:,:,jl) = frcv(jpr_qsrmix)%z3(:,:,jl) * ( 1.- palbi(:,:,jl) ) &
2070	& / ( 1.- ( alb_oce_mix(:,: ) * ziceld(:,:) &
2071	& + palbi (:,:,jl) * picefr(:,:) ) )
2072	END DO
2073	ELSE
2074	DO jl = 1, jpl
2075	zqsr_ice(:,:,jl) = frcv(jpr_qsrmix)%z3(:,:, 1) * ( 1.- palbi(:,:,jl) ) &
2076	& / ( 1.- ( alb_oce_mix(:,: ) * ziceld(:,:) &
2077	& + palbi (:,:,jl) * picefr(:,:) ) )
2078	END DO
2079	ENDIF
2080	CASE( 'none' ) ! Not available as for now: needs additional coding
2081	! ! since fields received, here zqsr_tot, are not defined with none option
2082	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_qsr value in namelist namsbc_cpl' )
2083	END SELECT
2084	IF( ln_dm2dc .AND. ln_cpl ) THEN ! modify qsr to include the diurnal cycle
2085	zqsr_tot(:,: ) = sbc_dcy( zqsr_tot(:,: ) )
2086	DO jl = 1, jpl
2087	zqsr_ice(:,:,jl) = sbc_dcy( zqsr_ice(:,:,jl) )
2088	END DO
2089	ENDIF
2090
2091	#if defined key_si3
2092	! ! ========================= !
2093	! ! Transmitted Qsr ! [W/m2]
2094	! ! ========================= !
2095	IF( .NOT.ln_cndflx ) THEN !== No conduction flux as surface forcing ==!
2096	!
2097	IF( nn_qtrice == 0 ) THEN
2098	! formulation derived from Grenfell and Maykut (1977), where transmission rate
2099	! 1) depends on cloudiness
2100	! ! ===> used prescribed cloud fraction representative for polar oceans in summer (0.81)
2101	! ! should be real cloud fraction instead (as in the bulk) but needs to be read from atm.
2102	! 2) is 0 when there is any snow
2103	! 3) tends to 1 for thin ice
2104	ztri(:,:) = 0.18 * ( 1.0 - cloud_fra(:,:) ) + 0.35 * cloud_fra(:,:) ! surface transmission when hi>10cm
2105	DO jl = 1, jpl
2106	WHERE ( phs(:,:,jl) <= 0._wp .AND. phi(:,:,jl) < 0.1_wp ) ! linear decrease from hi=0 to 10cm
2107	zqtr_ice_top(:,:,jl) = zqsr_ice(:,:,jl) * ( ztri(:,:) + ( 1._wp - ztri(:,:) ) * ( 1._wp - phi(:,:,jl) * 10._wp ) )
2108	ELSEWHERE( phs(:,:,jl) <= 0._wp .AND. phi(:,:,jl) >= 0.1_wp ) ! constant (ztri) when hi>10cm
2109	zqtr_ice_top(:,:,jl) = zqsr_ice(:,:,jl) * ztri(:,:)
2110	ELSEWHERE ! zero when hs>0
2111	zqtr_ice_top(:,:,jl) = 0._wp
2112	END WHERE
2113	ENDDO
2114	ELSEIF( nn_qtrice == 1 ) THEN
2115	! formulation is derived from the thesis of M. Lebrun (2019).
2116	! It represents the best fit using several sets of observations
2117	! It comes with snow conductivities adapted to freezing/melting conditions (see icethd_zdf_bl99.F90)
2118	zqtr_ice_top(:,:,:) = 0.3_wp * zqsr_ice(:,:,:)
2119	ENDIF
2120	!
2121	ELSEIF( ln_cndflx .AND. .NOT.ln_cndemulate ) THEN !== conduction flux as surface forcing ==!
2122	!
2123	SELECT CASE( TRIM( sn_rcv_qtr%cldes ) )
2124	!
2125	! ! ===> here we receive the qtr_ice_top array from the coupler
2126	CASE ('coupled')
2127	IF (ln_scale_ice_flux) THEN
2128	WHERE( a_i(:,:,:) > 0.0_wp ) zqtr_ice_top(:,:,:) = frcv(jpr_qtr)%z3(:,:,:) * a_i_last_couple(:,:,:) / a_i(:,:,:)
2129	WHERE( a_i(:,:,:) <= 0.0_wp ) zqtr_ice_top(:,:,:) = 0.0_wp
2130	ELSE
2131	zqtr_ice_top(:,:,:) = frcv(jpr_qtr)%z3(:,:,:)
2132	ENDIF
2133
2134	! Add retrieved transmitted solar radiation onto the ice and total solar radiation
2135	zqsr_ice(:,:,:) = zqsr_ice(:,:,:) + zqtr_ice_top(:,:,:)
2136	zqsr_tot(:,:) = zqsr_tot(:,:) + SUM( zqtr_ice_top(:,:,:) * a_i(:,:,:), dim=3 )
2137
2138	! if we are not getting this data from the coupler then assume zero (fully opaque ice)
2139	CASE ('none')
2140	zqtr_ice_top(:,:,:) = 0._wp
2141	END SELECT
2142
2143	!
2144	ENDIF
2145	!
2146	IF( ln_mixcpl ) THEN
2147	DO jl=1,jpl
2148	qtr_ice_top(:,:,jl) = qtr_ice_top(:,:,jl) * xcplmask(:,:,0) + zqtr_ice_top(:,:,jl) * zmsk(:,:)
2149	ENDDO
2150	ELSE
2151	qtr_ice_top(:,:,:) = zqtr_ice_top(:,:,:)
2152	ENDIF
2153
2154	! --- solar flux over ocean --- !
2155	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
2156	zqsr_oce = 0._wp
2157	WHERE( ziceld /= 0._wp ) zqsr_oce(:,:) = ( zqsr_tot(:,:) - SUM( a_i * zqsr_ice, dim=3 ) ) / ziceld(:,:)
2158
2159	IF( ln_mixcpl ) THEN ; qsr_oce(:,:) = qsr_oce(:,:) * xcplmask(:,:,0) + zqsr_oce(:,:)* zmsk(:,:)
2160	ELSE ; qsr_oce(:,:) = zqsr_oce(:,:) ; ENDIF
2161	#endif
2162
2163	IF( ln_mixcpl ) THEN
2164	qsr_tot(:,:) = qsr(:,:) * ziceld(:,:) + SUM( qsr_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
2165	qsr_tot(:,:) = qsr_tot(:,:) * xcplmask(:,:,0) + zqsr_tot(:,:)* zmsk(:,:)
2166	DO jl = 1, jpl
2167	qsr_ice(:,:,jl) = qsr_ice(:,:,jl) * xcplmask(:,:,0) + zqsr_ice(:,:,jl)* zmsk(:,:)
2168	END DO
2169	ELSE
2170	qsr_tot(:,: ) = zqsr_tot(:,: )
2171	qsr_ice(:,:,:) = zqsr_ice(:,:,:)
2172	ENDIF
2173
2174	! ! ========================= !
2175	SELECT CASE( TRIM( sn_rcv_dqnsdt%cldes ) ) ! d(qns)/dt !
2176	! ! ========================= !
2177	CASE ('coupled')
2178	IF ( TRIM(sn_rcv_dqnsdt%clcat) == 'yes' ) THEN
2179	zdqns_ice(:,:,1:jpl) = frcv(jpr_dqnsdt)%z3(:,:,1:jpl)
2180	ELSE
2181	! Set all category values equal for the moment
2182	DO jl=1,jpl
2183	zdqns_ice(:,:,jl) = frcv(jpr_dqnsdt)%z3(:,:,1)
2184	ENDDO
2185	ENDIF
2186	CASE( 'none' )
2187	zdqns_ice(:,:,:) = 0._wp
2188	END SELECT
2189
2190	IF( ln_mixcpl ) THEN
2191	DO jl=1,jpl
2192	dqns_ice(:,:,jl) = dqns_ice(:,:,jl) * xcplmask(:,:,0) + zdqns_ice(:,:,jl) * zmsk(:,:)
2193	ENDDO
2194	ELSE
2195	dqns_ice(:,:,:) = zdqns_ice(:,:,:)
2196	ENDIF
2197
2198	#if defined key_si3
2199	! ! ================== !
2200	! ! ice skin temp. !
2201	! ! ================== !
2202	! needed by Met Office
2203	IF( srcv(jpr_ts_ice)%laction ) THEN
2204	WHERE ( frcv(jpr_ts_ice)%z3(:,:,:) > 0.0 ) ; ztsu(:,:,:) = 0. + rt0
2205	ELSEWHERE( frcv(jpr_ts_ice)%z3(:,:,:) < -60. ) ; ztsu(:,:,:) = -60. + rt0
2206	ELSEWHERE ; ztsu(:,:,:) = frcv(jpr_ts_ice)%z3(:,:,:) + rt0
2207	END WHERE
2208	!
2209	IF( ln_mixcpl ) THEN
2210	DO jl=1,jpl
2211	pist(:,:,jl) = pist(:,:,jl) * xcplmask(:,:,0) + ztsu(:,:,jl) * zmsk(:,:)
2212	ENDDO
2213	ELSE
2214	pist(:,:,:) = ztsu(:,:,:)
2215	ENDIF
2216	!
2217	ENDIF
2218	!
2219	#endif
2220	!
2221	END SUBROUTINE sbc_cpl_ice_flx
2222
2223
2224	SUBROUTINE sbc_cpl_snd( kt )
2225	!!----------------------------------------------------------------------
2226	!! * ROUTINE sbc_cpl_snd *
2227	!!
2228	!! ** Purpose : provide the ocean-ice informations to the atmosphere
2229	!!
2230	!! ** Method : send to the atmosphere through a call to cpl_snd
2231	!! all the needed fields (as defined in sbc_cpl_init)
2232	!!----------------------------------------------------------------------
2233	INTEGER, INTENT(in) :: kt
2234	!
2235	INTEGER :: ji, jj, jl ! dummy loop indices
2236	INTEGER :: isec, info ! local integer
2237	REAL(wp) :: zumax, zvmax
2238	REAL(wp), DIMENSION(jpi,jpj) :: zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1
2239	REAL(wp), DIMENSION(jpi,jpj,jpl) :: ztmp3, ztmp4
2240	!!----------------------------------------------------------------------
2241	!
2242	isec = ( kt - nit000 ) * NINT( rdt ) ! date of exchanges
2243	info = OASIS_idle
2244
2245	zfr_l(:,:) = 1.- fr_i(:,:)
2246	! ! ------------------------- !
2247	! ! Surface temperature ! in Kelvin
2248	! ! ------------------------- !
2249	IF( ssnd(jps_toce)%laction .OR. ssnd(jps_tice)%laction .OR. ssnd(jps_tmix)%laction ) THEN
2250
2251	IF ( nn_components == jp_iam_opa ) THEN
2252	ztmp1(:,:) = tsn(:,:,1,jp_tem) ! send temperature as it is (potential or conservative) -> use of l_useCT on the received part
2253	ELSE
2254	! we must send the surface potential temperature
2255	IF( l_useCT ) THEN ; ztmp1(:,:) = eos_pt_from_ct( tsn(:,:,1,jp_tem), tsn(:,:,1,jp_sal) )
2256	ELSE ; ztmp1(:,:) = tsn(:,:,1,jp_tem)
2257	ENDIF
2258	!
2259	SELECT CASE( sn_snd_temp%cldes)
2260	CASE( 'oce only' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2261	CASE( 'oce and ice' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2262	SELECT CASE( sn_snd_temp%clcat )
2263	CASE( 'yes' )
2264	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl)
2265	CASE( 'no' )
2266	WHERE( SUM( a_i, dim=3 ) /= 0. )
2267	ztmp3(:,:,1) = SUM( tn_ice * a_i, dim=3 ) / SUM( a_i, dim=3 )
2268	ELSEWHERE
2269	ztmp3(:,:,1) = rt0
2270	END WHERE
2271	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2272	END SELECT
2273	CASE( 'weighted oce and ice' ) ; ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2274	SELECT CASE( sn_snd_temp%clcat )
2275	CASE( 'yes' )
2276	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2277	CASE( 'no' )
2278	ztmp3(:,:,:) = 0.0
2279	DO jl=1,jpl
2280	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2281	ENDDO
2282	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2283	END SELECT
2284	CASE( 'oce and weighted ice') ; ztmp1(:,:) = tsn(:,:,1,jp_tem) + rt0
2285	SELECT CASE( sn_snd_temp%clcat )
2286	CASE( 'yes' )
2287	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2288	CASE( 'no' )
2289	ztmp3(:,:,:) = 0.0
2290	DO jl=1,jpl
2291	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2292	ENDDO
2293	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2294	END SELECT
2295	CASE( 'mixed oce-ice' )
2296	ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2297	DO jl=1,jpl
2298	ztmp1(:,:) = ztmp1(:,:) + tn_ice(:,:,jl) * a_i(:,:,jl)
2299	ENDDO
2300	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%cldes' )
2301	END SELECT
2302	ENDIF
2303	IF( ssnd(jps_toce)%laction ) CALL cpl_snd( jps_toce, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2304	IF( ssnd(jps_tice)%laction ) CALL cpl_snd( jps_tice, isec, ztmp3, info )
2305	IF( ssnd(jps_tmix)%laction ) CALL cpl_snd( jps_tmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2306	ENDIF
2307	!
2308	! ! ------------------------- !
2309	! ! 1st layer ice/snow temp. !
2310	! ! ------------------------- !
2311	#if defined key_si3
2312	! needed by Met Office
2313	IF( ssnd(jps_ttilyr)%laction) THEN
2314	SELECT CASE( sn_snd_ttilyr%cldes)
2315	CASE ('weighted ice')
2316	ztmp3(:,:,1:jpl) = t1_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2317	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ttilyr%cldes' )
2318	END SELECT
2319	IF( ssnd(jps_ttilyr)%laction ) CALL cpl_snd( jps_ttilyr, isec, ztmp3, info )
2320	ENDIF
2321	#endif
2322	! ! ------------------------- !
2323	! ! Albedo !
2324	! ! ------------------------- !
2325	IF( ssnd(jps_albice)%laction ) THEN ! ice
2326	SELECT CASE( sn_snd_alb%cldes )
2327	CASE( 'ice' )
2328	SELECT CASE( sn_snd_alb%clcat )
2329	CASE( 'yes' )
2330	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl)
2331	CASE( 'no' )
2332	WHERE( SUM( a_i, dim=3 ) /= 0. )
2333	ztmp1(:,:) = SUM( alb_ice (:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 ) / SUM( a_i(:,:,1:jpl), dim=3 )
2334	ELSEWHERE
2335	ztmp1(:,:) = alb_oce_mix(:,:)
2336	END WHERE
2337	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%clcat' )
2338	END SELECT
2339	CASE( 'weighted ice' ) ;
2340	SELECT CASE( sn_snd_alb%clcat )
2341	CASE( 'yes' )
2342	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2343	CASE( 'no' )
2344	WHERE( fr_i (:,:) > 0. )
2345	ztmp1(:,:) = SUM ( alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 )
2346	ELSEWHERE
2347	ztmp1(:,:) = 0.
2348	END WHERE
2349	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ice%clcat' )
2350	END SELECT
2351	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%cldes' )
2352	END SELECT
2353
2354	SELECT CASE( sn_snd_alb%clcat )
2355	CASE( 'yes' )
2356	CALL cpl_snd( jps_albice, isec, ztmp3, info ) !-> MV this has never been checked in coupled mode
2357	CASE( 'no' )
2358	CALL cpl_snd( jps_albice, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2359	END SELECT
2360	ENDIF
2361
2362	IF( ssnd(jps_albmix)%laction ) THEN ! mixed ice-ocean
2363	ztmp1(:,:) = alb_oce_mix(:,:) * zfr_l(:,:)
2364	DO jl = 1, jpl
2365	ztmp1(:,:) = ztmp1(:,:) + alb_ice(:,:,jl) * a_i(:,:,jl)
2366	END DO
2367	CALL cpl_snd( jps_albmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2368	ENDIF
2369	! ! ------------------------- !
2370	! ! Ice fraction & Thickness !
2371	! ! ------------------------- !
2372	! Send ice fraction field to atmosphere
2373	IF( ssnd(jps_fice)%laction ) THEN
2374	SELECT CASE( sn_snd_thick%clcat )
2375	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2376	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2377	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2378	END SELECT
2379	CALL cpl_snd( jps_fice, isec, ztmp3, info )
2380	ENDIF
2381
2382	#if defined key_si3 \|\| defined key_cice
2383	! If this coupling was successful then save ice fraction for use between coupling points.
2384	! This is needed for some calculations where the ice fraction at the last coupling point
2385	! is needed.
2386	IF( info == OASIS_Sent .OR. info == OASIS_ToRest .OR. &
2387	& info == OASIS_SentOut .OR. info == OASIS_ToRestOut ) THEN
2388	IF ( sn_snd_thick%clcat == 'yes' ) THEN
2389	a_i_last_couple(:,:,1:jpl) = a_i(:,:,1:jpl)
2390	ENDIF
2391	ENDIF
2392	#endif
2393
2394	IF( ssnd(jps_fice1)%laction ) THEN
2395	SELECT CASE( sn_snd_thick1%clcat )
2396	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2397	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2398	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick1%clcat' )
2399	END SELECT
2400	CALL cpl_snd( jps_fice1, isec, ztmp3, info )
2401	ENDIF
2402
2403	! Send ice fraction field to OPA (sent by SAS in SAS-OPA coupling)
2404	IF( ssnd(jps_fice2)%laction ) THEN
2405	ztmp3(:,:,1) = fr_i(:,:)
2406	IF( ssnd(jps_fice2)%laction ) CALL cpl_snd( jps_fice2, isec, ztmp3, info )
2407	ENDIF
2408
2409	! Send ice and snow thickness field
2410	IF( ssnd(jps_hice)%laction .OR. ssnd(jps_hsnw)%laction ) THEN
2411	SELECT CASE( sn_snd_thick%cldes)
2412	CASE( 'none' ) ! nothing to do
2413	CASE( 'weighted ice and snow' )
2414	SELECT CASE( sn_snd_thick%clcat )
2415	CASE( 'yes' )
2416	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl) * a_i(:,:,1:jpl)
2417	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl) * a_i(:,:,1:jpl)
2418	CASE( 'no' )
2419	ztmp3(:,:,:) = 0.0 ; ztmp4(:,:,:) = 0.0
2420	DO jl=1,jpl
2421	ztmp3(:,:,1) = ztmp3(:,:,1) + h_i(:,:,jl) * a_i(:,:,jl)
2422	ztmp4(:,:,1) = ztmp4(:,:,1) + h_s(:,:,jl) * a_i(:,:,jl)
2423	ENDDO
2424	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2425	END SELECT
2426	CASE( 'ice and snow' )
2427	SELECT CASE( sn_snd_thick%clcat )
2428	CASE( 'yes' )
2429	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl)
2430	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl)
2431	CASE( 'no' )
2432	WHERE( SUM( a_i, dim=3 ) /= 0. )
2433	ztmp3(:,:,1) = SUM( h_i * a_i, dim=3 ) / SUM( a_i, dim=3 )
2434	ztmp4(:,:,1) = SUM( h_s * a_i, dim=3 ) / SUM( a_i, dim=3 )
2435	ELSEWHERE
2436	ztmp3(:,:,1) = 0.
2437	ztmp4(:,:,1) = 0.
2438	END WHERE
2439	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2440	END SELECT
2441	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%cldes' )
2442	END SELECT
2443	IF( ssnd(jps_hice)%laction ) CALL cpl_snd( jps_hice, isec, ztmp3, info )
2444	IF( ssnd(jps_hsnw)%laction ) CALL cpl_snd( jps_hsnw, isec, ztmp4, info )
2445	ENDIF
2446
2447	#if defined key_si3
2448	! ! ------------------------- !
2449	! ! Ice melt ponds !
2450	! ! ------------------------- !
2451	! needed by Met Office: 1) fraction of ponded ice 2) local/actual pond depth
2452	IF( ssnd(jps_a_p)%laction .OR. ssnd(jps_ht_p)%laction ) THEN
2453	SELECT CASE( sn_snd_mpnd%cldes)
2454	CASE( 'ice only' )
2455	SELECT CASE( sn_snd_mpnd%clcat )
2456	CASE( 'yes' )
2457	ztmp3(:,:,1:jpl) = a_ip_eff(:,:,1:jpl)
2458	ztmp4(:,:,1:jpl) = h_ip(:,:,1:jpl)
2459	CASE( 'no' )
2460	ztmp3(:,:,:) = 0.0
2461	ztmp4(:,:,:) = 0.0
2462	DO jl=1,jpl
2463	ztmp3(:,:,1) = ztmp3(:,:,1) + a_ip_frac(:,:,jpl)
2464	ztmp4(:,:,1) = ztmp4(:,:,1) + h_ip(:,:,jpl)
2465	ENDDO
2466	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%clcat' )
2467	END SELECT
2468	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%cldes' )
2469	END SELECT
2470	IF( ssnd(jps_a_p)%laction ) CALL cpl_snd( jps_a_p , isec, ztmp3, info )
2471	IF( ssnd(jps_ht_p)%laction ) CALL cpl_snd( jps_ht_p, isec, ztmp4, info )
2472	ENDIF
2473	!
2474	! ! ------------------------- !
2475	! ! Ice conductivity !
2476	! ! ------------------------- !
2477	! needed by Met Office
2478	IF( ssnd(jps_kice)%laction ) THEN
2479	SELECT CASE( sn_snd_cond%cldes)
2480	CASE( 'weighted ice' )
2481	SELECT CASE( sn_snd_cond%clcat )
2482	CASE( 'yes' )
2483	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2484	CASE( 'no' )
2485	ztmp3(:,:,:) = 0.0
2486	DO jl=1,jpl
2487	ztmp3(:,:,1) = ztmp3(:,:,1) + cnd_ice(:,:,jl) * a_i(:,:,jl)
2488	ENDDO
2489	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%clcat' )
2490	END SELECT
2491	CASE( 'ice only' )
2492	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl)
2493	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%cldes' )
2494	END SELECT
2495	IF( ssnd(jps_kice)%laction ) CALL cpl_snd( jps_kice, isec, ztmp3, info )
2496	ENDIF
2497	#endif
2498
2499	! ! ------------------------- !
2500	! ! CO2 flux from PISCES !
2501	! ! ------------------------- !
2502	IF( ssnd(jps_co2)%laction .AND. l_co2cpl ) THEN
2503	ztmp1(:,:) = oce_co2(:,:) * 1000. ! conversion in molC/m2/s
2504	CALL cpl_snd( jps_co2, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ) , info )
2505	ENDIF
2506	!
2507	! ! ------------------------- !
2508	IF( ssnd(jps_ocx1)%laction ) THEN ! Surface current !
2509	! ! ------------------------- !
2510	!
2511	! j+1 j -----V---F
2512	! surface velocity always sent from T point ! \|
2513	! j \| T U
2514	! \| \|
2515	! j j-1 -I-------\|
2516	! (for I) \| \|
2517	! i-1 i i
2518	! i i+1 (for I)
2519	IF( nn_components == jp_iam_opa ) THEN
2520	zotx1(:,:) = un(:,:,1)
2521	zoty1(:,:) = vn(:,:,1)
2522	ELSE
2523	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
2524	CASE( 'oce only' ) ! C-grid ==> T
2525	DO jj = 2, jpjm1
2526	DO ji = fs_2, fs_jpim1 ! vector opt.
2527	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
2528	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) )
2529	END DO
2530	END DO
2531	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2532	DO jj = 2, jpjm1
2533	DO ji = fs_2, fs_jpim1 ! vector opt.
2534	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
2535	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
2536	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2537	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2538	END DO
2539	END DO
2540	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1., zity1, 'T', -1. )
2541	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2542	DO jj = 2, jpjm1
2543	DO ji = fs_2, fs_jpim1 ! vector opt.
2544	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
2545	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2546	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
2547	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2548	END DO
2549	END DO
2550	END SELECT
2551	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocx1)%clgrid, -1., zoty1, ssnd(jps_ocy1)%clgrid, -1. )
2552	!
2553	ENDIF
2554	!
2555	!
2556	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2557	! ! Ocean component
2558	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2559	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2560	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2561	zoty1(:,:) = ztmp2(:,:)
2562	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2563	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2564	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2565	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2566	zity1(:,:) = ztmp2(:,:)
2567	ENDIF
2568	ENDIF
2569	!
2570	! spherical coordinates to cartesian -> 2 components to 3 components
2571	IF( TRIM( sn_snd_crt%clvref ) == 'cartesian' ) THEN
2572	ztmp1(:,:) = zotx1(:,:) ! ocean currents
2573	ztmp2(:,:) = zoty1(:,:)
2574	CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2575	!
2576	IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2577	ztmp1(:,:) = zitx1(:,:)
2578	ztmp1(:,:) = zity1(:,:)
2579	CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2580	ENDIF
2581	ENDIF
2582	!
2583	IF( ssnd(jps_ocx1)%laction ) CALL cpl_snd( jps_ocx1, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2584	IF( ssnd(jps_ocy1)%laction ) CALL cpl_snd( jps_ocy1, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2585	IF( ssnd(jps_ocz1)%laction ) CALL cpl_snd( jps_ocz1, isec, RESHAPE ( zotz1, (/jpi,jpj,1/) ), info ) ! ocean z current 1st grid
2586	!
2587	IF( ssnd(jps_ivx1)%laction ) CALL cpl_snd( jps_ivx1, isec, RESHAPE ( zitx1, (/jpi,jpj,1/) ), info ) ! ice x current 1st grid
2588	IF( ssnd(jps_ivy1)%laction ) CALL cpl_snd( jps_ivy1, isec, RESHAPE ( zity1, (/jpi,jpj,1/) ), info ) ! ice y current 1st grid
2589	IF( ssnd(jps_ivz1)%laction ) CALL cpl_snd( jps_ivz1, isec, RESHAPE ( zitz1, (/jpi,jpj,1/) ), info ) ! ice z current 1st grid
2590	!
2591	ENDIF
2592	!
2593	! ! ------------------------- !
2594	! ! Surface current to waves !
2595	! ! ------------------------- !
2596	IF( ssnd(jps_ocxw)%laction .OR. ssnd(jps_ocyw)%laction ) THEN
2597	!
2598	! j+1 j -----V---F
2599	! surface velocity always sent from T point ! \|
2600	! j \| T U
2601	! \| \|
2602	! j j-1 -I-------\|
2603	! (for I) \| \|
2604	! i-1 i i
2605	! i i+1 (for I)
2606	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
2607	CASE( 'oce only' ) ! C-grid ==> T
2608	DO jj = 2, jpjm1
2609	DO ji = fs_2, fs_jpim1 ! vector opt.
2610	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
2611	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji , jj-1,1) )
2612	END DO
2613	END DO
2614	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2615	DO jj = 2, jpjm1
2616	DO ji = fs_2, fs_jpim1 ! vector opt.
2617	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
2618	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
2619	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2620	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2621	END DO
2622	END DO
2623	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1., zity1, 'T', -1. )
2624	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2625	DO jj = 2, jpjm1
2626	DO ji = fs_2, fs_jpim1 ! vector opt.
2627	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
2628	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2629	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
2630	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2631	END DO
2632	END DO
2633	END SELECT
2634	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocxw)%clgrid, -1., zoty1, ssnd(jps_ocyw)%clgrid, -1. )
2635	!
2636	!
2637	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2638	! ! Ocean component
2639	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2640	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2641	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2642	zoty1(:,:) = ztmp2(:,:)
2643	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2644	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2645	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2646	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2647	zity1(:,:) = ztmp2(:,:)
2648	ENDIF
2649	ENDIF
2650	!
2651	! ! spherical coordinates to cartesian -> 2 components to 3 components
2652	! IF( TRIM( sn_snd_crtw%clvref ) == 'cartesian' ) THEN
2653	! ztmp1(:,:) = zotx1(:,:) ! ocean currents
2654	! ztmp2(:,:) = zoty1(:,:)
2655	! CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2656	! !
2657	! IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2658	! ztmp1(:,:) = zitx1(:,:)
2659	! ztmp1(:,:) = zity1(:,:)
2660	! CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2661	! ENDIF
2662	! ENDIF
2663	!
2664	IF( ssnd(jps_ocxw)%laction ) CALL cpl_snd( jps_ocxw, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2665	IF( ssnd(jps_ocyw)%laction ) CALL cpl_snd( jps_ocyw, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2666	!
2667	ENDIF
2668	!
2669	IF( ssnd(jps_ficet)%laction ) THEN
2670	CALL cpl_snd( jps_ficet, isec, RESHAPE ( fr_i, (/jpi,jpj,1/) ), info )
2671	END IF
2672	! ! ------------------------- !
2673	! ! Water levels to waves !
2674	! ! ------------------------- !
2675	IF( ssnd(jps_wlev)%laction ) THEN
2676	IF( ln_apr_dyn ) THEN
2677	IF( kt /= nit000 ) THEN
2678	ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2679	ELSE
2680	ztmp1(:,:) = sshb(:,:)
2681	ENDIF
2682	ELSE
2683	ztmp1(:,:) = sshn(:,:)
2684	ENDIF
2685	CALL cpl_snd( jps_wlev , isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2686	END IF
2687	!
2688	! Fields sent by OPA to SAS when doing OPA<->SAS coupling
2689	! ! SSH
2690	IF( ssnd(jps_ssh )%laction ) THEN
2691	! ! removed inverse barometer ssh when Patm
2692	! forcing is used (for sea-ice dynamics)
2693	IF( ln_apr_dyn ) THEN ; ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2694	ELSE ; ztmp1(:,:) = sshn(:,:)
2695	ENDIF
2696	CALL cpl_snd( jps_ssh , isec, RESHAPE ( ztmp1 , (/jpi,jpj,1/) ), info )
2697
2698	ENDIF
2699	! ! SSS
2700	IF( ssnd(jps_soce )%laction ) THEN
2701	CALL cpl_snd( jps_soce , isec, RESHAPE ( tsn(:,:,1,jp_sal), (/jpi,jpj,1/) ), info )
2702	ENDIF
2703	! ! first T level thickness
2704	IF( ssnd(jps_e3t1st )%laction ) THEN
2705	CALL cpl_snd( jps_e3t1st, isec, RESHAPE ( e3t_n(:,:,1) , (/jpi,jpj,1/) ), info )
2706	ENDIF
2707	! ! Qsr fraction
2708	IF( ssnd(jps_fraqsr)%laction ) THEN
2709	CALL cpl_snd( jps_fraqsr, isec, RESHAPE ( fraqsr_1lev(:,:) , (/jpi,jpj,1/) ), info )
2710	ENDIF
2711	!
2712	! Fields sent by SAS to OPA when OASIS coupling
2713	! ! Solar heat flux
2714	IF( ssnd(jps_qsroce)%laction ) CALL cpl_snd( jps_qsroce, isec, RESHAPE ( qsr , (/jpi,jpj,1/) ), info )
2715	IF( ssnd(jps_qnsoce)%laction ) CALL cpl_snd( jps_qnsoce, isec, RESHAPE ( qns , (/jpi,jpj,1/) ), info )
2716	IF( ssnd(jps_oemp )%laction ) CALL cpl_snd( jps_oemp , isec, RESHAPE ( emp , (/jpi,jpj,1/) ), info )
2717	IF( ssnd(jps_sflx )%laction ) CALL cpl_snd( jps_sflx , isec, RESHAPE ( sfx , (/jpi,jpj,1/) ), info )
2718	IF( ssnd(jps_otx1 )%laction ) CALL cpl_snd( jps_otx1 , isec, RESHAPE ( utau, (/jpi,jpj,1/) ), info )
2719	IF( ssnd(jps_oty1 )%laction ) CALL cpl_snd( jps_oty1 , isec, RESHAPE ( vtau, (/jpi,jpj,1/) ), info )
2720	IF( ssnd(jps_rnf )%laction ) CALL cpl_snd( jps_rnf , isec, RESHAPE ( rnf , (/jpi,jpj,1/) ), info )
2721	IF( ssnd(jps_taum )%laction ) CALL cpl_snd( jps_taum , isec, RESHAPE ( taum, (/jpi,jpj,1/) ), info )
2722
2723	#if defined key_si3
2724	! ! ------------------------- !
2725	! ! Sea surface freezing temp !
2726	! ! ------------------------- !
2727	! needed by Met Office
2728	CALL eos_fzp(tsn(:,:,1,jp_sal), sstfrz)
2729	ztmp1(:,:) = sstfrz(:,:) + rt0
2730	IF( ssnd(jps_sstfrz)%laction ) CALL cpl_snd( jps_sstfrz, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info)
2731	#endif
2732	!
2733	END SUBROUTINE sbc_cpl_snd
2734
2735	!!======================================================================
2736	END MODULE sbccpl

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