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sbccpl.F90 in NEMO/branches/UKMO/NEMO_4.0.1_NGMS_couple_dan/src/OCE/SBC – NEMO

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source: NEMO/branches/UKMO/NEMO_4.0.1_NGMS_couple_dan/src/OCE/SBC/sbccpl.F90 @ 15178

Last change on this file since 15178 was 15178, checked in by dancopsey, 3 years ago
Allow just the passing of sea ice fractions and weighted sea ice thicknesses
File size: 158.8 KB

Line
1	MODULE sbccpl
2	!!======================================================================
3	!! * MODULE sbccpl *
4	!! Surface Boundary Condition : momentum, heat and freshwater fluxes in coupled mode
5	!!======================================================================
6	!! History : 2.0 ! 2007-06 (R. Redler, N. Keenlyside, W. Park) Original code split into flxmod & taumod
7	!! 3.0 ! 2008-02 (G. Madec, C Talandier) surface module
8	!! 3.1 ! 2009_02 (G. Madec, S. Masson, E. Maisonave, A. Caubel) generic coupled interface
9	!! 3.4 ! 2011_11 (C. Harris) more flexibility + multi-category fields
10	!!----------------------------------------------------------------------
11
12	!!----------------------------------------------------------------------
13	!! namsbc_cpl : coupled formulation namlist
14	!! sbc_cpl_init : initialisation of the coupled exchanges
15	!! sbc_cpl_rcv : receive fields from the atmosphere over the ocean (ocean only)
16	!! receive stress from the atmosphere over the ocean (ocean-ice case)
17	!! sbc_cpl_ice_tau : receive stress from the atmosphere over ice
18	!! sbc_cpl_ice_flx : receive fluxes from the atmosphere over ice
19	!! sbc_cpl_snd : send fields to the atmosphere
20	!!----------------------------------------------------------------------
21	USE dom_oce ! ocean space and time domain
22	USE sbc_oce ! Surface boundary condition: ocean fields
23	USE trc_oce ! share SMS/Ocean variables
24	USE sbc_ice ! Surface boundary condition: ice fields
25	USE sbcapr ! Stochastic param. : ???
26	USE sbcdcy ! surface boundary condition: diurnal cycle
27	USE sbcwave ! surface boundary condition: waves
28	USE phycst ! physical constants
29	#if defined key_si3
30	USE ice ! ice variables
31	#endif
32	USE cpl_oasis3 ! OASIS3 coupling
33	USE geo2ocean !
34	USE oce , ONLY : tsn, un, vn, sshn, ub, vb, sshb, fraqsr_1lev
35	USE ocealb !
36	USE eosbn2 !
37	USE sbcrnf , ONLY : l_rnfcpl
38	USE sbcisf , ONLY : l_isfcpl
39	#if defined key_cice
40	USE ice_domain_size, only: ncat
41	#endif
42	#if defined key_si3
43	USE icethd_dh ! for CALL ice_thd_snwblow
44	#endif
45	!
46	USE in_out_manager ! I/O manager
47	USE iom ! NetCDF library
48	USE lib_mpp ! distribued memory computing library
49	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
50
51	IMPLICIT NONE
52	PRIVATE
53
54	PUBLIC sbc_cpl_init ! routine called by sbcmod.F90
55	PUBLIC sbc_cpl_rcv ! routine called by icestp.F90
56	PUBLIC sbc_cpl_snd ! routine called by step.F90
57	PUBLIC sbc_cpl_ice_tau ! routine called by icestp.F90
58	PUBLIC sbc_cpl_ice_flx ! routine called by icestp.F90
59	PUBLIC sbc_cpl_alloc ! routine called in sbcice_cice.F90
60
61	INTEGER, PARAMETER :: jpr_otx1 = 1 ! 3 atmosphere-ocean stress components on grid 1
62	INTEGER, PARAMETER :: jpr_oty1 = 2 !
63	INTEGER, PARAMETER :: jpr_otz1 = 3 !
64	INTEGER, PARAMETER :: jpr_otx2 = 4 ! 3 atmosphere-ocean stress components on grid 2
65	INTEGER, PARAMETER :: jpr_oty2 = 5 !
66	INTEGER, PARAMETER :: jpr_otz2 = 6 !
67	INTEGER, PARAMETER :: jpr_itx1 = 7 ! 3 atmosphere-ice stress components on grid 1
68	INTEGER, PARAMETER :: jpr_ity1 = 8 !
69	INTEGER, PARAMETER :: jpr_itz1 = 9 !
70	INTEGER, PARAMETER :: jpr_itx2 = 10 ! 3 atmosphere-ice stress components on grid 2
71	INTEGER, PARAMETER :: jpr_ity2 = 11 !
72	INTEGER, PARAMETER :: jpr_itz2 = 12 !
73	INTEGER, PARAMETER :: jpr_qsroce = 13 ! Qsr above the ocean
74	INTEGER, PARAMETER :: jpr_qsrice = 14 ! Qsr above the ice
75	INTEGER, PARAMETER :: jpr_qsrmix = 15
76	INTEGER, PARAMETER :: jpr_qnsoce = 16 ! Qns above the ocean
77	INTEGER, PARAMETER :: jpr_qnsice = 17 ! Qns above the ice
78	INTEGER, PARAMETER :: jpr_qnsmix = 18
79	INTEGER, PARAMETER :: jpr_rain = 19 ! total liquid precipitation (rain)
80	INTEGER, PARAMETER :: jpr_snow = 20 ! solid precipitation over the ocean (snow)
81	INTEGER, PARAMETER :: jpr_tevp = 21 ! total evaporation
82	INTEGER, PARAMETER :: jpr_ievp = 22 ! solid evaporation (sublimation)
83	INTEGER, PARAMETER :: jpr_sbpr = 23 ! sublimation - liquid precipitation - solid precipitation
84	INTEGER, PARAMETER :: jpr_semp = 24 ! solid freshwater budget (sublimation - snow)
85	INTEGER, PARAMETER :: jpr_oemp = 25 ! ocean freshwater budget (evap - precip)
86	INTEGER, PARAMETER :: jpr_w10m = 26 ! 10m wind
87	INTEGER, PARAMETER :: jpr_dqnsdt = 27 ! d(Q non solar)/d(temperature)
88	INTEGER, PARAMETER :: jpr_rnf = 28 ! runoffs
89	INTEGER, PARAMETER :: jpr_cal = 29 ! calving
90	INTEGER, PARAMETER :: jpr_taum = 30 ! wind stress module
91	INTEGER, PARAMETER :: jpr_co2 = 31
92	INTEGER, PARAMETER :: jpr_topm = 32 ! topmeltn
93	INTEGER, PARAMETER :: jpr_botm = 33 ! botmeltn
94	INTEGER, PARAMETER :: jpr_sflx = 34 ! salt flux
95	INTEGER, PARAMETER :: jpr_toce = 35 ! ocean temperature
96	INTEGER, PARAMETER :: jpr_soce = 36 ! ocean salinity
97	INTEGER, PARAMETER :: jpr_ocx1 = 37 ! ocean current on grid 1
98	INTEGER, PARAMETER :: jpr_ocy1 = 38 !
99	INTEGER, PARAMETER :: jpr_ssh = 39 ! sea surface height
100	INTEGER, PARAMETER :: jpr_fice = 40 ! ice fraction
101	INTEGER, PARAMETER :: jpr_e3t1st = 41 ! first T level thickness
102	INTEGER, PARAMETER :: jpr_fraqsr = 42 ! fraction of solar net radiation absorbed in the first ocean level
103	INTEGER, PARAMETER :: jpr_mslp = 43 ! mean sea level pressure
104	INTEGER, PARAMETER :: jpr_hsig = 44 ! Hsig
105	INTEGER, PARAMETER :: jpr_phioc = 45 ! Wave=>ocean energy flux
106	INTEGER, PARAMETER :: jpr_sdrftx = 46 ! Stokes drift on grid 1
107	INTEGER, PARAMETER :: jpr_sdrfty = 47 ! Stokes drift on grid 2
108	INTEGER, PARAMETER :: jpr_wper = 48 ! Mean wave period
109	INTEGER, PARAMETER :: jpr_wnum = 49 ! Mean wavenumber
110	INTEGER, PARAMETER :: jpr_tauwoc = 50 ! Stress fraction adsorbed by waves
111	INTEGER, PARAMETER :: jpr_wdrag = 51 ! Neutral surface drag coefficient
112	INTEGER, PARAMETER :: jpr_isf = 52
113	INTEGER, PARAMETER :: jpr_icb = 53
114	INTEGER, PARAMETER :: jpr_wfreq = 54 ! Wave peak frequency
115	INTEGER, PARAMETER :: jpr_tauwx = 55 ! x component of the ocean stress from waves
116	INTEGER, PARAMETER :: jpr_tauwy = 56 ! y component of the ocean stress from waves
117	INTEGER, PARAMETER :: jpr_ts_ice = 57 ! Sea ice surface temp
118	INTEGER, PARAMETER :: jpr_dummy_t = 58 ! Dummy test incoming coupling tracer grid field
119
120	INTEGER, PARAMETER :: jprcv = 58 ! total number of fields received
121
122	INTEGER, PARAMETER :: jps_fice = 1 ! ice fraction sent to the atmosphere
123	INTEGER, PARAMETER :: jps_toce = 2 ! ocean temperature
124	INTEGER, PARAMETER :: jps_tice = 3 ! ice temperature
125	INTEGER, PARAMETER :: jps_tmix = 4 ! mixed temperature (ocean+ice)
126	INTEGER, PARAMETER :: jps_albice = 5 ! ice albedo
127	INTEGER, PARAMETER :: jps_albmix = 6 ! mixed albedo
128	INTEGER, PARAMETER :: jps_hice = 7 ! ice thickness
129	INTEGER, PARAMETER :: jps_hsnw = 8 ! snow thickness
130	INTEGER, PARAMETER :: jps_ocx1 = 9 ! ocean current on grid 1
131	INTEGER, PARAMETER :: jps_ocy1 = 10 !
132	INTEGER, PARAMETER :: jps_ocz1 = 11 !
133	INTEGER, PARAMETER :: jps_ivx1 = 12 ! ice current on grid 1
134	INTEGER, PARAMETER :: jps_ivy1 = 13 !
135	INTEGER, PARAMETER :: jps_ivz1 = 14 !
136	INTEGER, PARAMETER :: jps_co2 = 15
137	INTEGER, PARAMETER :: jps_soce = 16 ! ocean salinity
138	INTEGER, PARAMETER :: jps_ssh = 17 ! sea surface height
139	INTEGER, PARAMETER :: jps_qsroce = 18 ! Qsr above the ocean
140	INTEGER, PARAMETER :: jps_qnsoce = 19 ! Qns above the ocean
141	INTEGER, PARAMETER :: jps_oemp = 20 ! ocean freshwater budget (evap - precip)
142	INTEGER, PARAMETER :: jps_sflx = 21 ! salt flux
143	INTEGER, PARAMETER :: jps_otx1 = 22 ! 2 atmosphere-ocean stress components on grid 1
144	INTEGER, PARAMETER :: jps_oty1 = 23 !
145	INTEGER, PARAMETER :: jps_rnf = 24 ! runoffs
146	INTEGER, PARAMETER :: jps_taum = 25 ! wind stress module
147	INTEGER, PARAMETER :: jps_fice2 = 26 ! ice fraction sent to OPA (by SAS when doing SAS-OPA coupling)
148	INTEGER, PARAMETER :: jps_e3t1st = 27 ! first level depth (vvl)
149	INTEGER, PARAMETER :: jps_fraqsr = 28 ! fraction of solar net radiation absorbed in the first ocean level
150	INTEGER, PARAMETER :: jps_ficet = 29 ! total ice fraction
151	INTEGER, PARAMETER :: jps_ocxw = 30 ! currents on grid 1
152	INTEGER, PARAMETER :: jps_ocyw = 31 ! currents on grid 2
153	INTEGER, PARAMETER :: jps_wlev = 32 ! water level
154	INTEGER, PARAMETER :: jps_fice1 = 33 ! first-order ice concentration (for semi-implicit coupling of atmos-ice fluxes)
155	INTEGER, PARAMETER :: jps_a_p = 34 ! meltpond area
156	INTEGER, PARAMETER :: jps_ht_p = 35 ! meltpond thickness
157	INTEGER, PARAMETER :: jps_kice = 36 ! sea ice effective conductivity
158	INTEGER, PARAMETER :: jps_sstfrz = 37 ! sea surface freezing temperature
159	INTEGER, PARAMETER :: jps_ttilyr = 38 ! sea ice top layer temp
160	INTEGER, PARAMETER :: jps_dummy_t = 39 ! Dummy test outgoing coupling tracer grid field
161
162	INTEGER, PARAMETER :: jpsnd = 39 ! total number of fields sent
163
164	! !! namelist namsbc_cpl
165	TYPE :: FLD_C !
166	CHARACTER(len = 32) :: cldes ! desciption of the coupling strategy
167	CHARACTER(len = 32) :: clcat ! multiple ice categories strategy
168	CHARACTER(len = 32) :: clvref ! reference of vector ('spherical' or 'cartesian')
169	CHARACTER(len = 32) :: clvor ! orientation of vector fields ('eastward-northward' or 'local grid')
170	CHARACTER(len = 32) :: clvgrd ! grids on which is located the vector fields
171	END TYPE FLD_C
172	! ! Send to the atmosphere
173	TYPE(FLD_C) :: sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2, &
174	& sn_snd_thick1, sn_snd_cond, sn_snd_mpnd , sn_snd_sstfrz, sn_snd_ttilyr
175	! ! Received from the atmosphere
176	TYPE(FLD_C) :: sn_rcv_w10m, sn_rcv_taumod, sn_rcv_tau, sn_rcv_tauw, sn_rcv_dqnsdt, sn_rcv_qsr, &
177	& sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf, sn_rcv_ts_ice
178	TYPE(FLD_C) :: sn_rcv_cal, sn_rcv_iceflx, sn_rcv_co2, sn_rcv_mslp, sn_rcv_icb, sn_rcv_isf
179	! Send to waves
180	TYPE(FLD_C) :: sn_snd_ifrac, sn_snd_crtw, sn_snd_wlev
181	! Received from waves
182	TYPE(FLD_C) :: sn_rcv_hsig, sn_rcv_phioc, sn_rcv_sdrfx, sn_rcv_sdrfy, sn_rcv_wper, sn_rcv_wnum, sn_rcv_tauwoc, &
183	sn_rcv_wdrag, sn_rcv_wfreq
184	! ! Other namelist parameters
185	INTEGER :: nn_cplmodel ! Maximum number of models to/from which NEMO is potentialy sending/receiving data
186	LOGICAL :: ln_usecplmask ! use a coupling mask file to merge data received from several models
187	! -> file cplmask.nc with the float variable called cplmask (jpi,jpj,nn_cplmodel)
188	TYPE :: DYNARR
189	REAL(wp), POINTER, DIMENSION(:,:,:) :: z3
190	END TYPE DYNARR
191
192	TYPE( DYNARR ), SAVE, DIMENSION(jprcv) :: frcv ! all fields recieved from the atmosphere
193
194	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: alb_oce_mix ! ocean albedo sent to atmosphere (mix clear/overcast sky)
195
196	REAL(wp) :: rpref = 101000._wp ! reference atmospheric pressure[N/m2]
197	REAL(wp) :: r1_grau ! = 1.e0 / (grav * rau0)
198
199	INTEGER , ALLOCATABLE, SAVE, DIMENSION(:) :: nrcvinfo ! OASIS info argument
200
201	!! Substitution
202	# include "vectopt_loop_substitute.h90"
203	!!----------------------------------------------------------------------
204	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
205	!! $Id$
206	!! Software governed by the CeCILL license (see ./LICENSE)
207	!!----------------------------------------------------------------------
208	CONTAINS
209
210	INTEGER FUNCTION sbc_cpl_alloc()
211	!!----------------------------------------------------------------------
212	!! * FUNCTION sbc_cpl_alloc *
213	!!----------------------------------------------------------------------
214	INTEGER :: ierr(4)
215	!!----------------------------------------------------------------------
216	ierr(:) = 0
217	!
218	ALLOCATE( alb_oce_mix(jpi,jpj), nrcvinfo(jprcv), STAT=ierr(1) )
219
220	#if ! defined key_si3 && ! defined key_cice
221	ALLOCATE( a_i(jpi,jpj,1) , STAT=ierr(2) ) ! used in sbcice_if.F90 (done here as there is no sbc_ice_if_init)
222	#endif
223	ALLOCATE( xcplmask(jpi,jpj,0:nn_cplmodel) , STAT=ierr(3) )
224	!
225	IF( .NOT. ln_apr_dyn ) ALLOCATE( ssh_ib(jpi,jpj), ssh_ibb(jpi,jpj), apr(jpi, jpj), STAT=ierr(4) )
226
227	sbc_cpl_alloc = MAXVAL( ierr )
228	CALL mpp_sum ( 'sbccpl', sbc_cpl_alloc )
229	IF( sbc_cpl_alloc > 0 ) CALL ctl_warn('sbc_cpl_alloc: allocation of arrays failed')
230	!
231	END FUNCTION sbc_cpl_alloc
232
233
234	SUBROUTINE sbc_cpl_init( k_ice )
235	!!----------------------------------------------------------------------
236	!! * ROUTINE sbc_cpl_init *
237	!!
238	!! ** Purpose : Initialisation of send and received information from
239	!! the atmospheric component
240	!!
241	!! ** Method : * Read namsbc_cpl namelist
242	!! * define the receive interface
243	!! * define the send interface
244	!! * initialise the OASIS coupler
245	!!----------------------------------------------------------------------
246	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
247	!
248	INTEGER :: jn ! dummy loop index
249	INTEGER :: ios, inum ! Local integer
250	REAL(wp), DIMENSION(jpi,jpj) :: zacs, zaos
251	!!
252	NAMELIST/namsbc_cpl/ sn_snd_temp , sn_snd_alb , sn_snd_thick, sn_snd_crt , sn_snd_co2 , &
253	& sn_snd_ttilyr, sn_snd_cond , sn_snd_mpnd , sn_snd_sstfrz, sn_snd_thick1, &
254	& sn_snd_ifrac , sn_snd_crtw , sn_snd_wlev , sn_rcv_hsig , sn_rcv_phioc, &
255	& sn_rcv_w10m , sn_rcv_taumod, sn_rcv_tau , sn_rcv_dqnsdt, sn_rcv_qsr , &
256	& sn_rcv_sdrfx , sn_rcv_sdrfy , sn_rcv_wper , sn_rcv_wnum , sn_rcv_tauwoc, &
257	& sn_rcv_wdrag , sn_rcv_qns , sn_rcv_emp , sn_rcv_rnf , sn_rcv_cal , &
258	& sn_rcv_iceflx, sn_rcv_co2 , nn_cplmodel , ln_usecplmask, sn_rcv_mslp , &
259	& sn_rcv_icb , sn_rcv_isf , sn_rcv_wfreq , sn_rcv_tauw, nn_cats_cpl , &
260	& sn_rcv_ts_ice
261
262	!!---------------------------------------------------------------------
263	!
264	! ================================ !
265	! Namelist informations !
266	! ================================ !
267	!
268	REWIND( numnam_ref ) ! Namelist namsbc_cpl in reference namelist : Variables for OASIS coupling
269	READ ( numnam_ref, namsbc_cpl, IOSTAT = ios, ERR = 901)
270	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in reference namelist' )
271	!
272	REWIND( numnam_cfg ) ! Namelist namsbc_cpl in configuration namelist : Variables for OASIS coupling
273	READ ( numnam_cfg, namsbc_cpl, IOSTAT = ios, ERR = 902 )
274	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namsbc_cpl in configuration namelist' )
275	IF(lwm) WRITE ( numond, namsbc_cpl )
276	!
277	IF(lwp) THEN ! control print
278	WRITE(numout,*)
279	WRITE(numout,*)'sbc_cpl_init : namsbc_cpl namelist '
280	WRITE(numout,*)'~~~~~~~~~~~~'
281	ENDIF
282	IF( lwp .AND. (ln_cpl .OR. ln_couple_test) ) THEN ! control print
283
284	WRITE(numout,*)' received fields (mutiple ice categogies)'
285	WRITE(numout,*)' 10m wind module = ', TRIM(sn_rcv_w10m%cldes ), ' (', TRIM(sn_rcv_w10m%clcat ), ')'
286	WRITE(numout,*)' stress module = ', TRIM(sn_rcv_taumod%cldes), ' (', TRIM(sn_rcv_taumod%clcat), ')'
287	WRITE(numout,*)' surface stress = ', TRIM(sn_rcv_tau%cldes ), ' (', TRIM(sn_rcv_tau%clcat ), ')'
288	WRITE(numout,*)' - referential = ', sn_rcv_tau%clvref
289	WRITE(numout,*)' - orientation = ', sn_rcv_tau%clvor
290	WRITE(numout,*)' - mesh = ', sn_rcv_tau%clvgrd
291	WRITE(numout,*)' non-solar heat flux sensitivity = ', TRIM(sn_rcv_dqnsdt%cldes), ' (', TRIM(sn_rcv_dqnsdt%clcat), ')'
292	WRITE(numout,*)' solar heat flux = ', TRIM(sn_rcv_qsr%cldes ), ' (', TRIM(sn_rcv_qsr%clcat ), ')'
293	WRITE(numout,*)' non-solar heat flux = ', TRIM(sn_rcv_qns%cldes ), ' (', TRIM(sn_rcv_qns%clcat ), ')'
294	WRITE(numout,*)' freshwater budget = ', TRIM(sn_rcv_emp%cldes ), ' (', TRIM(sn_rcv_emp%clcat ), ')'
295	WRITE(numout,*)' runoffs = ', TRIM(sn_rcv_rnf%cldes ), ' (', TRIM(sn_rcv_rnf%clcat ), ')'
296	WRITE(numout,*)' calving = ', TRIM(sn_rcv_cal%cldes ), ' (', TRIM(sn_rcv_cal%clcat ), ')'
297	WRITE(numout,*)' iceberg = ', TRIM(sn_rcv_icb%cldes ), ' (', TRIM(sn_rcv_icb%clcat ), ')'
298	WRITE(numout,*)' ice shelf = ', TRIM(sn_rcv_isf%cldes ), ' (', TRIM(sn_rcv_isf%clcat ), ')'
299	WRITE(numout,*)' sea ice heat fluxes = ', TRIM(sn_rcv_iceflx%cldes), ' (', TRIM(sn_rcv_iceflx%clcat), ')'
300	WRITE(numout,*)' atm co2 = ', TRIM(sn_rcv_co2%cldes ), ' (', TRIM(sn_rcv_co2%clcat ), ')'
301	WRITE(numout,*)' significant wave heigth = ', TRIM(sn_rcv_hsig%cldes ), ' (', TRIM(sn_rcv_hsig%clcat ), ')'
302	WRITE(numout,*)' wave to oce energy flux = ', TRIM(sn_rcv_phioc%cldes ), ' (', TRIM(sn_rcv_phioc%clcat ), ')'
303	WRITE(numout,*)' Surface Stokes drift grid u = ', TRIM(sn_rcv_sdrfx%cldes ), ' (', TRIM(sn_rcv_sdrfx%clcat ), ')'
304	WRITE(numout,*)' Surface Stokes drift grid v = ', TRIM(sn_rcv_sdrfy%cldes ), ' (', TRIM(sn_rcv_sdrfy%clcat ), ')'
305	WRITE(numout,*)' Mean wave period = ', TRIM(sn_rcv_wper%cldes ), ' (', TRIM(sn_rcv_wper%clcat ), ')'
306	WRITE(numout,*)' Mean wave number = ', TRIM(sn_rcv_wnum%cldes ), ' (', TRIM(sn_rcv_wnum%clcat ), ')'
307	WRITE(numout,*)' Wave peak frequency = ', TRIM(sn_rcv_wfreq%cldes ), ' (', TRIM(sn_rcv_wfreq%clcat ), ')'
308	WRITE(numout,*)' Stress frac adsorbed by waves = ', TRIM(sn_rcv_tauwoc%cldes), ' (', TRIM(sn_rcv_tauwoc%clcat ), ')'
309	WRITE(numout,*)' Stress components by waves = ', TRIM(sn_rcv_tauw%cldes ), ' (', TRIM(sn_rcv_tauw%clcat ), ')'
310	WRITE(numout,*)' Neutral surf drag coefficient = ', TRIM(sn_rcv_wdrag%cldes ), ' (', TRIM(sn_rcv_wdrag%clcat ), ')'
311	WRITE(numout,*)' Sea ice surface skin temperature= ', TRIM(sn_rcv_ts_ice%cldes), ' (', TRIM(sn_rcv_ts_ice%clcat), ')'
312	WRITE(numout,*)' sent fields (multiple ice categories)'
313	WRITE(numout,*)' surface temperature = ', TRIM(sn_snd_temp%cldes ), ' (', TRIM(sn_snd_temp%clcat ), ')'
314	WRITE(numout,*)' top ice layer temperature = ', TRIM(sn_snd_ttilyr%cldes), ' (', TRIM(sn_snd_ttilyr%clcat), ')'
315	WRITE(numout,*)' albedo = ', TRIM(sn_snd_alb%cldes ), ' (', TRIM(sn_snd_alb%clcat ), ')'
316	WRITE(numout,*)' ice/snow thickness = ', TRIM(sn_snd_thick%cldes ), ' (', TRIM(sn_snd_thick%clcat ), ')'
317	WRITE(numout,*)' total ice fraction = ', TRIM(sn_snd_ifrac%cldes ), ' (', TRIM(sn_snd_ifrac%clcat ), ')'
318	WRITE(numout,*)' surface current = ', TRIM(sn_snd_crt%cldes ), ' (', TRIM(sn_snd_crt%clcat ), ')'
319	WRITE(numout,*)' - referential = ', sn_snd_crt%clvref
320	WRITE(numout,*)' - orientation = ', sn_snd_crt%clvor
321	WRITE(numout,*)' - mesh = ', sn_snd_crt%clvgrd
322	WRITE(numout,*)' oce co2 flux = ', TRIM(sn_snd_co2%cldes ), ' (', TRIM(sn_snd_co2%clcat ), ')'
323	WRITE(numout,*)' ice effective conductivity = ', TRIM(sn_snd_cond%cldes ), ' (', TRIM(sn_snd_cond%clcat ), ')'
324	WRITE(numout,*)' meltponds fraction and depth = ', TRIM(sn_snd_mpnd%cldes ), ' (', TRIM(sn_snd_mpnd%clcat ), ')'
325	WRITE(numout,*)' sea surface freezing temp = ', TRIM(sn_snd_sstfrz%cldes), ' (', TRIM(sn_snd_sstfrz%clcat), ')'
326	WRITE(numout,*)' water level = ', TRIM(sn_snd_wlev%cldes ), ' (', TRIM(sn_snd_wlev%clcat ), ')'
327	WRITE(numout,*)' mean sea level pressure = ', TRIM(sn_rcv_mslp%cldes ), ' (', TRIM(sn_rcv_mslp%clcat ), ')'
328	WRITE(numout,*)' surface current to waves = ', TRIM(sn_snd_crtw%cldes ), ' (', TRIM(sn_snd_crtw%clcat ), ')'
329	WRITE(numout,*)' - referential = ', sn_snd_crtw%clvref
330	WRITE(numout,*)' - orientation = ', sn_snd_crtw%clvor
331	WRITE(numout,*)' - mesh = ', sn_snd_crtw%clvgrd
332	WRITE(numout,*)' nn_cplmodel = ', nn_cplmodel
333	WRITE(numout,*)' ln_usecplmask = ', ln_usecplmask
334	WRITE(numout,*)' nn_cats_cpl = ', nn_cats_cpl
335	ENDIF
336
337	! ! allocate sbccpl arrays
338	IF( sbc_cpl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_cpl_alloc : unable to allocate arrays' )
339
340	! ================================ !
341	! Define the receive interface !
342	! ================================ !
343	nrcvinfo(:) = OASIS_idle ! needed by nrcvinfo(jpr_otx1) if we do not receive ocean stress
344
345	! for each field: define the OASIS name (srcv(:)%clname)
346	! define receive or not from the namelist parameters (srcv(:)%laction)
347	! define the north fold type of lbc (srcv(:)%nsgn)
348
349	! default definitions of srcv
350	srcv(:)%laction = .FALSE. ; srcv(:)%clgrid = 'T' ; srcv(:)%nsgn = 1. ; srcv(:)%nct = 1
351
352	! ! ------------------------- !
353	! ! ice and ocean wind stress !
354	! ! ------------------------- !
355	! ! Name
356	srcv(jpr_otx1)%clname = 'O_OTaux1' ! 1st ocean component on grid ONE (T or U)
357	srcv(jpr_oty1)%clname = 'O_OTauy1' ! 2nd - - - -
358	srcv(jpr_otz1)%clname = 'O_OTauz1' ! 3rd - - - -
359	srcv(jpr_otx2)%clname = 'O_OTaux2' ! 1st ocean component on grid TWO (V)
360	srcv(jpr_oty2)%clname = 'O_OTauy2' ! 2nd - - - -
361	srcv(jpr_otz2)%clname = 'O_OTauz2' ! 3rd - - - -
362	!
363	srcv(jpr_itx1)%clname = 'O_ITaux1' ! 1st ice component on grid ONE (T, F, I or U)
364	srcv(jpr_ity1)%clname = 'O_ITauy1' ! 2nd - - - -
365	srcv(jpr_itz1)%clname = 'O_ITauz1' ! 3rd - - - -
366	srcv(jpr_itx2)%clname = 'O_ITaux2' ! 1st ice component on grid TWO (V)
367	srcv(jpr_ity2)%clname = 'O_ITauy2' ! 2nd - - - -
368	srcv(jpr_itz2)%clname = 'O_ITauz2' ! 3rd - - - -
369	!
370	! Vectors: change of sign at north fold ONLY if on the local grid
371	IF( TRIM( sn_rcv_tau%cldes ) == 'oce only' .OR. TRIM(sn_rcv_tau%cldes ) == 'oce and ice') THEN ! avoid working with the atmospheric fields if they are not coupled
372	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) srcv(jpr_otx1:jpr_itz2)%nsgn = -1.
373
374	! ! Set grid and action
375
376	SELECT CASE( TRIM( sn_rcv_tau%clvgrd ) ) ! 'T', 'U,V', 'U,V,I', 'U,V,F', 'T,I', 'T,F', or 'T,U,V'
377	CASE( 'T' )
378	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
379	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
380	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
381	CASE( 'U,V' )
382	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
383	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
384	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
385	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
386	srcv(jpr_otx1:jpr_itz2)%laction = .TRUE. ! receive oce and ice components on both grid 1 & 2
387	CASE( 'U,V,T' )
388	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
389	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
390	srcv(jpr_itx1:jpr_itz1)%clgrid = 'T' ! ice components given at T-point
391	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
392	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
393	CASE( 'U,V,I' )
394	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
395	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
396	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
397	srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
398	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
399	CASE( 'U,V,F' )
400	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
401	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
402	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
403	!srcv(jpr_otx1:jpr_otz2)%laction = .TRUE. ! receive oce components on grid 1 & 2
404	! Currently needed for HadGEM3 - but shouldn't affect anyone else for the moment
405	srcv(jpr_otx1)%laction = .TRUE.
406	srcv(jpr_oty1)%laction = .TRUE.
407	!
408	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1 only
409	CASE( 'T,I' )
410	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
411	srcv(jpr_itx1:jpr_itz1)%clgrid = 'I' ! ice components given at I-point
412	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
413	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
414	CASE( 'T,F' )
415	srcv(jpr_otx1:jpr_itz2)%clgrid = 'T' ! oce and ice components given at T-point
416	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
417	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1
418	srcv(jpr_itx1:jpr_itz1)%laction = .TRUE. ! receive ice components on grid 1
419	CASE( 'T,U,V' )
420	srcv(jpr_otx1:jpr_otz1)%clgrid = 'T' ! oce components given at T-point
421	srcv(jpr_itx1:jpr_itz1)%clgrid = 'U' ! ice components given at U-point
422	srcv(jpr_itx2:jpr_itz2)%clgrid = 'V' ! and V-point
423	srcv(jpr_otx1:jpr_otz1)%laction = .TRUE. ! receive oce components on grid 1 only
424	srcv(jpr_itx1:jpr_itz2)%laction = .TRUE. ! receive ice components on grid 1 & 2
425	CASE default
426	CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_tau%clvgrd' )
427	END SELECT
428	!
429	IF( TRIM( sn_rcv_tau%clvref ) == 'spherical' ) & ! spherical: 3rd component not received
430	& srcv( (/jpr_otz1, jpr_otz2, jpr_itz1, jpr_itz2/) )%laction = .FALSE.
431	!
432	IF( TRIM( sn_rcv_tau%clvor ) == 'local grid' ) THEN ! already on local grid -> no need of the second grid
433	srcv(jpr_otx2:jpr_otz2)%laction = .FALSE.
434	srcv(jpr_itx2:jpr_itz2)%laction = .FALSE.
435	srcv(jpr_oty1)%clgrid = srcv(jpr_oty2)%clgrid ! not needed but cleaner...
436	srcv(jpr_ity1)%clgrid = srcv(jpr_ity2)%clgrid ! not needed but cleaner...
437	ENDIF
438	!
439	IF( TRIM( sn_rcv_tau%cldes ) /= 'oce and ice' ) THEN ! 'oce and ice' case ocean stress on ocean mesh used
440	srcv(jpr_itx1:jpr_itz2)%laction = .FALSE. ! ice components not received
441	srcv(jpr_itx1)%clgrid = 'U' ! ocean stress used after its transformation
442	srcv(jpr_ity1)%clgrid = 'V' ! i.e. it is always at U- & V-points for i- & j-comp. resp.
443	ENDIF
444	ENDIF
445
446	! ! ------------------------- !
447	! ! freshwater budget ! E-P
448	! ! ------------------------- !
449	! we suppose that atmosphere modele do not make the difference between precipiration (liquide or solid)
450	! over ice of free ocean within the same atmospheric cell.cd
451	srcv(jpr_rain)%clname = 'OTotRain' ! Rain = liquid precipitation
452	srcv(jpr_snow)%clname = 'OTotSnow' ! Snow = solid precipitation
453	srcv(jpr_tevp)%clname = 'OTotEvap' ! total evaporation (over oce + ice sublimation)
454	srcv(jpr_ievp)%clname = 'OIceEvap' ! evaporation over ice = sublimation
455	srcv(jpr_sbpr)%clname = 'OSubMPre' ! sublimation - liquid precipitation - solid precipitation
456	srcv(jpr_semp)%clname = 'OISubMSn' ! ice solid water budget = sublimation - solid precipitation
457	srcv(jpr_oemp)%clname = 'OOEvaMPr' ! ocean water budget = ocean Evap - ocean precip
458	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
459	CASE( 'none' ) ! nothing to do
460	CASE( 'oce only' ) ; srcv(jpr_oemp)%laction = .TRUE.
461	CASE( 'conservative' )
462	srcv( (/jpr_rain, jpr_snow, jpr_ievp, jpr_tevp/) )%laction = .TRUE.
463	IF ( k_ice <= 1 ) srcv(jpr_ievp)%laction = .FALSE.
464	CASE( 'ice only' ) ; srcv(jpr_ievp)%laction = .TRUE.
465	CASE( 'oce and ice' ) ; srcv( (/jpr_ievp, jpr_sbpr, jpr_semp, jpr_oemp/) )%laction = .TRUE.
466	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_emp%cldes' )
467	END SELECT
468	!
469	! ! ------------------------- !
470	! ! Runoffs & Calving !
471	! ! ------------------------- !
472	srcv(jpr_rnf )%clname = 'O_Runoff'
473	IF (ln_cpl) THEN ! Don't perform this code if coupling is not active!
474	IF( TRIM( sn_rcv_rnf%cldes ) == 'coupled' ) THEN
475	srcv(jpr_rnf)%laction = .TRUE.
476	l_rnfcpl = .TRUE. ! -> no need to read runoffs in sbcrnf
477	ln_rnf = nn_components /= jp_iam_sas ! -> force to go through sbcrnf if not sas
478	IF(lwp) WRITE(numout,*)
479	IF(lwp) WRITE(numout,*) ' runoffs received from oasis -> force ln_rnf = ', ln_rnf
480	ENDIF
481	ENDIF
482	!
483	srcv(jpr_cal)%clname = 'OCalving' ; IF( TRIM( sn_rcv_cal%cldes) == 'coupled' ) srcv(jpr_cal)%laction = .TRUE.
484	srcv(jpr_isf)%clname = 'OIcshelf' ; IF( TRIM( sn_rcv_isf%cldes) == 'coupled' ) srcv(jpr_isf)%laction = .TRUE.
485	srcv(jpr_icb)%clname = 'OIceberg' ; IF( TRIM( sn_rcv_icb%cldes) == 'coupled' ) srcv(jpr_icb)%laction = .TRUE.
486
487	IF( srcv(jpr_isf)%laction .AND. ln_isf ) THEN
488	l_isfcpl = .TRUE. ! -> no need to read isf in sbcisf
489	IF(lwp) WRITE(numout,*)
490	IF(lwp) WRITE(numout,*) ' iceshelf received from oasis '
491	ENDIF
492	!
493	! ! ------------------------- !
494	! ! non solar radiation ! Qns
495	! ! ------------------------- !
496	srcv(jpr_qnsoce)%clname = 'O_QnsOce'
497	srcv(jpr_qnsice)%clname = 'O_QnsIce'
498	srcv(jpr_qnsmix)%clname = 'O_QnsMix'
499	SELECT CASE( TRIM( sn_rcv_qns%cldes ) )
500	CASE( 'none' ) ! nothing to do
501	CASE( 'oce only' ) ; srcv( jpr_qnsoce )%laction = .TRUE.
502	CASE( 'conservative' ) ; srcv( (/jpr_qnsice, jpr_qnsmix/) )%laction = .TRUE.
503	CASE( 'oce and ice' ) ; srcv( (/jpr_qnsice, jpr_qnsoce/) )%laction = .TRUE.
504	CASE( 'mixed oce-ice' ) ; srcv( jpr_qnsmix )%laction = .TRUE.
505	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qns%cldes' )
506	END SELECT
507	IF( TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
508	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qns%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
509	!
510	! ! ------------------------- !
511	! ! solar radiation ! Qsr
512	! ! ------------------------- !
513	srcv(jpr_qsroce)%clname = 'O_QsrOce'
514	srcv(jpr_qsrice)%clname = 'O_QsrIce'
515	srcv(jpr_qsrmix)%clname = 'O_QsrMix'
516	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) )
517	CASE( 'none' ) ! nothing to do
518	CASE( 'oce only' ) ; srcv( jpr_qsroce )%laction = .TRUE.
519	CASE( 'conservative' ) ; srcv( (/jpr_qsrice, jpr_qsrmix/) )%laction = .TRUE.
520	CASE( 'oce and ice' ) ; srcv( (/jpr_qsrice, jpr_qsroce/) )%laction = .TRUE.
521	CASE( 'mixed oce-ice' ) ; srcv( jpr_qsrmix )%laction = .TRUE.
522	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_rcv_qsr%cldes' )
523	END SELECT
524	IF( TRIM( sn_rcv_qsr%cldes ) == 'mixed oce-ice' .AND. nn_cats_cpl > 1 ) &
525	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_qsr%cldes not currently allowed to be mixed oce-ice for multi-category ice' )
526	!
527	! ! ------------------------- !
528	! ! non solar sensitivity ! d(Qns)/d(T)
529	! ! ------------------------- !
530	srcv(jpr_dqnsdt)%clname = 'O_dQnsdT'
531	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'coupled' ) srcv(jpr_dqnsdt)%laction = .TRUE.
532	!
533	! non solar sensitivity mandatory for mixed oce-ice solar radiation coupling technique
534	IF( TRIM( sn_rcv_dqnsdt%cldes ) == 'none' .AND. TRIM( sn_rcv_qns%cldes ) == 'mixed oce-ice' ) &
535	& CALL ctl_stop( 'sbc_cpl_init: namsbc_cpl namelist mismatch between sn_rcv_qns%cldes and sn_rcv_dqnsdt%cldes' )
536	!
537	! ! ------------------------- !
538	! ! 10m wind module !
539	! ! ------------------------- !
540	srcv(jpr_w10m)%clname = 'O_Wind10' ; IF( TRIM(sn_rcv_w10m%cldes ) == 'coupled' ) srcv(jpr_w10m)%laction = .TRUE.
541	!
542	! ! ------------------------- !
543	! ! wind stress module !
544	! ! ------------------------- !
545	srcv(jpr_taum)%clname = 'O_TauMod' ; IF( TRIM(sn_rcv_taumod%cldes) == 'coupled' ) srcv(jpr_taum)%laction = .TRUE.
546	lhftau = srcv(jpr_taum)%laction
547	!
548	! ! ------------------------- !
549	! ! Atmospheric CO2 !
550	! ! ------------------------- !
551	srcv(jpr_co2 )%clname = 'O_AtmCO2'
552	IF (ln_cpl) THEN ! Not needed if we're not coupling
553	IF( TRIM(sn_rcv_co2%cldes ) == 'coupled' ) THEN
554	srcv(jpr_co2 )%laction = .TRUE.
555	l_co2cpl = .TRUE.
556	IF(lwp) WRITE(numout,*)
557	IF(lwp) WRITE(numout,*) ' Atmospheric pco2 received from oasis '
558	IF(lwp) WRITE(numout,*)
559	ENDIF
560	ENDIF
561	!
562	! ! ------------------------- !
563	! ! Mean Sea Level Pressure !
564	! ! ------------------------- !
565	srcv(jpr_mslp)%clname = 'O_MSLP' ; IF( TRIM(sn_rcv_mslp%cldes ) == 'coupled' ) srcv(jpr_mslp)%laction = .TRUE.
566	!
567	! ! ------------------------- !
568	! ! ice topmelt and botmelt !
569	! ! ------------------------- !
570	srcv(jpr_topm )%clname = 'OTopMlt'
571	srcv(jpr_botm )%clname = 'OBotMlt'
572	IF( TRIM(sn_rcv_iceflx%cldes) == 'coupled' ) THEN
573	IF ( TRIM( sn_rcv_iceflx%clcat ) == 'yes' ) THEN
574	srcv(jpr_topm:jpr_botm)%nct = nn_cats_cpl
575	ELSE
576	CALL ctl_stop( 'sbc_cpl_init: sn_rcv_iceflx%clcat should always be set to yes currently' )
577	ENDIF
578	srcv(jpr_topm:jpr_botm)%laction = .TRUE.
579	ENDIF
580
581	WRITE(numout,*) 'DC: sn_rcv_iceflx%cldes, sn_rcv_iceflx%clcat, srcv(jpr_topm)%laction = ',sn_rcv_iceflx%cldes, sn_rcv_iceflx%clcat, srcv(jpr_topm)%laction
582
583	! ! ------------------------- !
584	! ! ice skin temperature !
585	! ! ------------------------- !
586	srcv(jpr_ts_ice)%clname = 'OTsfIce' ! needed by Met Office
587	IF ( TRIM( sn_rcv_ts_ice%cldes ) == 'ice' ) srcv(jpr_ts_ice)%laction = .TRUE.
588	IF ( TRIM( sn_rcv_ts_ice%clcat ) == 'yes' ) srcv(jpr_ts_ice)%nct = nn_cats_cpl
589	IF ( TRIM( sn_rcv_emp%clcat ) == 'yes' ) srcv(jpr_ievp)%nct = nn_cats_cpl
590
591	! ! ------------------------- !
592	! ! Wave breaking !
593	! ! ------------------------- !
594	srcv(jpr_hsig)%clname = 'O_Hsigwa' ! significant wave height
595	IF( TRIM(sn_rcv_hsig%cldes ) == 'coupled' ) THEN
596	srcv(jpr_hsig)%laction = .TRUE.
597	cpl_hsig = .TRUE.
598	ENDIF
599	srcv(jpr_phioc)%clname = 'O_PhiOce' ! wave to ocean energy
600	IF( TRIM(sn_rcv_phioc%cldes ) == 'coupled' ) THEN
601	srcv(jpr_phioc)%laction = .TRUE.
602	cpl_phioc = .TRUE.
603	ENDIF
604	srcv(jpr_sdrftx)%clname = 'O_Sdrfx' ! Stokes drift in the u direction
605	IF( TRIM(sn_rcv_sdrfx%cldes ) == 'coupled' ) THEN
606	srcv(jpr_sdrftx)%laction = .TRUE.
607	cpl_sdrftx = .TRUE.
608	ENDIF
609	srcv(jpr_sdrfty)%clname = 'O_Sdrfy' ! Stokes drift in the v direction
610	IF( TRIM(sn_rcv_sdrfy%cldes ) == 'coupled' ) THEN
611	srcv(jpr_sdrfty)%laction = .TRUE.
612	cpl_sdrfty = .TRUE.
613	ENDIF
614	srcv(jpr_wper)%clname = 'O_WPer' ! mean wave period
615	IF( TRIM(sn_rcv_wper%cldes ) == 'coupled' ) THEN
616	srcv(jpr_wper)%laction = .TRUE.
617	cpl_wper = .TRUE.
618	ENDIF
619	srcv(jpr_wfreq)%clname = 'O_WFreq' ! wave peak frequency
620	IF( TRIM(sn_rcv_wfreq%cldes ) == 'coupled' ) THEN
621	srcv(jpr_wfreq)%laction = .TRUE.
622	cpl_wfreq = .TRUE.
623	ENDIF
624	srcv(jpr_wnum)%clname = 'O_WNum' ! mean wave number
625	IF( TRIM(sn_rcv_wnum%cldes ) == 'coupled' ) THEN
626	srcv(jpr_wnum)%laction = .TRUE.
627	cpl_wnum = .TRUE.
628	ENDIF
629	srcv(jpr_tauwoc)%clname = 'O_TauOce' ! stress fraction adsorbed by the wave
630	IF( TRIM(sn_rcv_tauwoc%cldes ) == 'coupled' ) THEN
631	srcv(jpr_tauwoc)%laction = .TRUE.
632	cpl_tauwoc = .TRUE.
633	ENDIF
634	srcv(jpr_tauwx)%clname = 'O_Tauwx' ! ocean stress from wave in the x direction
635	srcv(jpr_tauwy)%clname = 'O_Tauwy' ! ocean stress from wave in the y direction
636	IF( TRIM(sn_rcv_tauw%cldes ) == 'coupled' ) THEN
637	srcv(jpr_tauwx)%laction = .TRUE.
638	srcv(jpr_tauwy)%laction = .TRUE.
639	cpl_tauw = .TRUE.
640	ENDIF
641	srcv(jpr_wdrag)%clname = 'O_WDrag' ! neutral surface drag coefficient
642	IF( TRIM(sn_rcv_wdrag%cldes ) == 'coupled' ) THEN
643	srcv(jpr_wdrag)%laction = .TRUE.
644	cpl_wdrag = .TRUE.
645	ENDIF
646	IF( srcv(jpr_tauwoc)%laction .AND. srcv(jpr_tauwx)%laction .AND. srcv(jpr_tauwy)%laction ) &
647	CALL ctl_stop( 'More than one method for modifying the ocean stress has been selected ', &
648	'(sn_rcv_tauwoc=coupled and sn_rcv_tauw=coupled)' )
649	!
650	! ! ------------------------------- !
651	! ! OPA-SAS coupling - rcv by opa !
652	! ! ------------------------------- !
653	srcv(jpr_sflx)%clname = 'O_SFLX'
654	srcv(jpr_fice)%clname = 'RIceFrc'
655	!
656	IF( nn_components == jp_iam_opa ) THEN ! OPA coupled to SAS via OASIS: force received field by OPA (sent by SAS)
657	srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
658	srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
659	srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
660	srcv( (/jpr_qsroce, jpr_qnsoce, jpr_oemp, jpr_sflx, jpr_fice, jpr_otx1, jpr_oty1, jpr_taum/) )%laction = .TRUE.
661	srcv(jpr_otx1)%clgrid = 'U' ! oce components given at U-point
662	srcv(jpr_oty1)%clgrid = 'V' ! and V-point
663	! Vectors: change of sign at north fold ONLY if on the local grid
664	srcv( (/jpr_otx1,jpr_oty1/) )%nsgn = -1.
665	sn_rcv_tau%clvgrd = 'U,V'
666	sn_rcv_tau%clvor = 'local grid'
667	sn_rcv_tau%clvref = 'spherical'
668	sn_rcv_emp%cldes = 'oce only'
669	!
670	IF(lwp) THEN ! control print
671	WRITE(numout,*)
672	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
673	WRITE(numout,*)' OPA component '
674	WRITE(numout,*)
675	WRITE(numout,*)' received fields from SAS component '
676	WRITE(numout,*)' ice cover '
677	WRITE(numout,*)' oce only EMP '
678	WRITE(numout,*)' salt flux '
679	WRITE(numout,*)' mixed oce-ice solar flux '
680	WRITE(numout,*)' mixed oce-ice non solar flux '
681	WRITE(numout,*)' wind stress U,V on local grid and sperical coordinates '
682	WRITE(numout,*)' wind stress module'
683	WRITE(numout,*)
684	ENDIF
685	ENDIF
686	! ! -------------------------------- !
687	! ! OPA-SAS coupling - rcv by sas !
688	! ! -------------------------------- !
689	srcv(jpr_toce )%clname = 'I_SSTSST'
690	srcv(jpr_soce )%clname = 'I_SSSal'
691	srcv(jpr_ocx1 )%clname = 'I_OCurx1'
692	srcv(jpr_ocy1 )%clname = 'I_OCury1'
693	srcv(jpr_ssh )%clname = 'I_SSHght'
694	srcv(jpr_e3t1st)%clname = 'I_E3T1st'
695	srcv(jpr_fraqsr)%clname = 'I_FraQsr'
696	!
697	IF( nn_components == jp_iam_sas ) THEN
698	IF( .NOT. ln_cpl ) srcv(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
699	IF( .NOT. ln_cpl ) srcv(:)%clgrid = 'T' ! force default definition in case of opa <-> sas coupling
700	IF( .NOT. ln_cpl ) srcv(:)%nsgn = 1. ! force default definition in case of opa <-> sas coupling
701	srcv( (/jpr_toce, jpr_soce, jpr_ssh, jpr_fraqsr, jpr_ocx1, jpr_ocy1/) )%laction = .TRUE.
702	srcv( jpr_e3t1st )%laction = .NOT.ln_linssh
703	srcv(jpr_ocx1)%clgrid = 'U' ! oce components given at U-point
704	srcv(jpr_ocy1)%clgrid = 'V' ! and V-point
705	! Vectors: change of sign at north fold ONLY if on the local grid
706	srcv(jpr_ocx1:jpr_ocy1)%nsgn = -1.
707	! Change first letter to couple with atmosphere if already coupled OPA
708	! this is nedeed as each variable name used in the namcouple must be unique:
709	! for example O_Runoff received by OPA from SAS and therefore O_Runoff received by SAS from the Atmosphere
710	DO jn = 1, jprcv
711	IF ( srcv(jn)%clname(1:1) == "O" ) srcv(jn)%clname = "S"//srcv(jn)%clname(2:LEN(srcv(jn)%clname))
712	END DO
713	!
714	IF(lwp) THEN ! control print
715	WRITE(numout,*)
716	WRITE(numout,*)' Special conditions for SAS-OPA coupling '
717	WRITE(numout,*)' SAS component '
718	WRITE(numout,*)
719	IF( .NOT. ln_cpl ) THEN
720	WRITE(numout,*)' received fields from OPA component '
721	ELSE
722	WRITE(numout,*)' Additional received fields from OPA component : '
723	ENDIF
724	WRITE(numout,*)' sea surface temperature (Celsius) '
725	WRITE(numout,*)' sea surface salinity '
726	WRITE(numout,*)' surface currents '
727	WRITE(numout,*)' sea surface height '
728	WRITE(numout,*)' thickness of first ocean T level '
729	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
730	WRITE(numout,*)
731	ENDIF
732	ENDIF
733
734
735	IF (ln_couple_test) THEN
736
737	! Define a dummy incoming T field which we may or may not wish to use.
738	srcv(jpr_dummy_t)%clname = 'R_OC_DUMMY_T'
739	srcv(jpr_dummy_t)%laction = .FALSE. ! for test of reciept of taux/y only
740
741	! Set taux and tauy to be active or not
742	srcv(jpr_otx1)%laction = .FALSE. ! temporary until those variables are available in lfric trunk
743	srcv(jpr_oty1)%laction = .FALSE. ! temporary until those variables are available in lfric trunk
744	srcv(jpr_otx1:jpr_otz1)%clgrid = 'U' ! oce components given at U-point
745	srcv(jpr_otx2:jpr_otz2)%clgrid = 'V' ! and V-point
746	srcv(jpr_itx1:jpr_itz1)%clgrid = 'F' ! ice components given at F-point
747
748	! Various settings necessary when we call coupling from what is essentially a
749	! stand alone ocean model, i.e. when ln_cpl is still false.
750	sn_rcv_tau%clvgrd = 'U,V,F'
751	sn_rcv_tau%clvor = 'eastward-northward'
752	sn_rcv_tau%clvref = 'spherical'
753	!qsr
754	srcv(jpr_qsroce)%laction = .TRUE.
755	!qns
756	srcv(jpr_qnsoce)%laction = .TRUE.
757	ENDIF
758
759	! =================================================== !
760	! Allocate all parts of frcv used for received fields !
761	! =================================================== !
762	DO jn = 1, jprcv
763	IF ( srcv(jn)%laction ) ALLOCATE( frcv(jn)%z3(jpi,jpj,srcv(jn)%nct) )
764	END DO
765	! Allocate taum part of frcv which is used even when not received as coupling field
766	IF ( .NOT. srcv(jpr_taum)%laction ) ALLOCATE( frcv(jpr_taum)%z3(jpi,jpj,srcv(jpr_taum)%nct) )
767	! Allocate w10m part of frcv which is used even when not received as coupling field
768	IF ( .NOT. srcv(jpr_w10m)%laction ) ALLOCATE( frcv(jpr_w10m)%z3(jpi,jpj,srcv(jpr_w10m)%nct) )
769	! Allocate jpr_otx1 part of frcv which is used even when not received as coupling field
770	IF ( .NOT. srcv(jpr_otx1)%laction ) ALLOCATE( frcv(jpr_otx1)%z3(jpi,jpj,srcv(jpr_otx1)%nct) )
771	IF ( .NOT. srcv(jpr_oty1)%laction ) ALLOCATE( frcv(jpr_oty1)%z3(jpi,jpj,srcv(jpr_oty1)%nct) )
772	! Allocate itx1 and ity1 as they are used in sbc_cpl_ice_tau even if srcv(jpr_itx1)%laction = .FALSE.
773	IF( k_ice /= 0 ) THEN
774	IF ( .NOT. srcv(jpr_itx1)%laction ) ALLOCATE( frcv(jpr_itx1)%z3(jpi,jpj,srcv(jpr_itx1)%nct) )
775	IF ( .NOT. srcv(jpr_ity1)%laction ) ALLOCATE( frcv(jpr_ity1)%z3(jpi,jpj,srcv(jpr_ity1)%nct) )
776	END IF
777
778
779
780
781
782	! ================================ !
783	! Define the send interface !
784	! ================================ !
785	! for each field: define the OASIS name (ssnd(:)%clname)
786	! define send or not from the namelist parameters (ssnd(:)%laction)
787	! define the north fold type of lbc (ssnd(:)%nsgn)
788
789	! default definitions of nsnd
790	ssnd(:)%laction = .FALSE. ; ssnd(:)%clgrid = 'T' ; ssnd(:)%nsgn = 1. ; ssnd(:)%nct = 1
791
792	! ! ------------------------- !
793	! ! Surface temperature !
794	! ! ------------------------- !
795	ssnd(jps_toce)%clname = 'O_SSTSST'
796	ssnd(jps_tice)%clname = 'O_TepIce'
797	ssnd(jps_ttilyr)%clname = 'O_TtiLyr'
798	ssnd(jps_tmix)%clname = 'O_TepMix'
799	SELECT CASE( TRIM( sn_snd_temp%cldes ) )
800	CASE( 'none' ) ! nothing to do
801	CASE( 'oce only' ) ; ssnd( jps_toce )%laction = .TRUE.
802	CASE( 'oce and ice' , 'weighted oce and ice' , 'oce and weighted ice' )
803	ssnd( (/jps_toce, jps_tice/) )%laction = .TRUE.
804	IF ( TRIM( sn_snd_temp%clcat ) == 'yes' ) ssnd(jps_tice)%nct = nn_cats_cpl
805	CASE( 'mixed oce-ice' ) ; ssnd( jps_tmix )%laction = .TRUE.
806	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_temp%cldes' )
807	END SELECT
808
809	! ! ------------------------- !
810	! ! Albedo !
811	! ! ------------------------- !
812	ssnd(jps_albice)%clname = 'O_AlbIce'
813	ssnd(jps_albmix)%clname = 'O_AlbMix'
814	SELECT CASE( TRIM( sn_snd_alb%cldes ) )
815	CASE( 'none' ) ! nothing to do
816	CASE( 'ice' , 'weighted ice' ) ; ssnd(jps_albice)%laction = .TRUE.
817	CASE( 'mixed oce-ice' ) ; ssnd(jps_albmix)%laction = .TRUE.
818	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_alb%cldes' )
819	END SELECT
820	!
821	! Need to calculate oceanic albedo if
822	! 1. sending mixed oce-ice albedo or
823	! 2. receiving mixed oce-ice solar radiation
824	IF ( TRIM ( sn_snd_alb%cldes ) == 'mixed oce-ice' .OR. TRIM ( sn_rcv_qsr%cldes ) == 'mixed oce-ice' ) THEN
825	CALL oce_alb( zaos, zacs )
826	! Due to lack of information on nebulosity : mean clear/overcast sky
827	alb_oce_mix(:,:) = ( zacs(:,:) + zaos(:,:) ) * 0.5
828	ENDIF
829	! ! ------------------------- !
830	! ! Ice fraction & Thickness !
831	! ! ------------------------- !
832	ssnd(jps_fice)%clname = 'OIceFrc'
833	ssnd(jps_ficet)%clname = 'OIceFrcT'
834	ssnd(jps_hice)%clname = 'OIceTck'
835	ssnd(jps_a_p)%clname = 'OPndFrc'
836	ssnd(jps_ht_p)%clname = 'OPndTck'
837	ssnd(jps_hsnw)%clname = 'OSnwTck'
838	ssnd(jps_fice1)%clname = 'OIceFrd'
839	IF( k_ice /= 0 ) THEN
840	ssnd(jps_fice)%laction = .TRUE. ! if ice treated in the ocean (even in climato case)
841	ssnd(jps_fice1)%laction = .TRUE. ! First-order regridded ice concentration, to be used producing atmos-to-ice fluxes (Met Office requirement)
842	! Currently no namelist entry to determine sending of multi-category ice fraction so use the thickness entry for now
843	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_fice)%nct = nn_cats_cpl
844	IF ( TRIM( sn_snd_thick1%clcat ) == 'yes' ) ssnd(jps_fice1)%nct = nn_cats_cpl
845	ENDIF
846
847	IF (TRIM( sn_snd_ifrac%cldes ) == 'coupled') ssnd(jps_ficet)%laction = .TRUE.
848
849	SELECT CASE ( TRIM( sn_snd_thick%cldes ) )
850	CASE( 'none' ) ! nothing to do
851	CASE( 'ice and snow' )
852	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
853	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) THEN
854	ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
855	ENDIF
856	CASE ( 'weighted ice and snow' )
857	ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
858	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
859	CASE ( 'weighted ice' )
860	ssnd(jps_hice)%laction = .TRUE.
861	IF ( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice)%nct = nn_cats_cpl
862	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_thick%cldes' )
863	END SELECT
864
865	! ! ------------------------- !
866	! ! Ice Meltponds !
867	! ! ------------------------- !
868	! Needed by Met Office
869	ssnd(jps_a_p)%clname = 'OPndFrc'
870	ssnd(jps_ht_p)%clname = 'OPndTck'
871	SELECT CASE ( TRIM( sn_snd_mpnd%cldes ) )
872	CASE ( 'none' )
873	ssnd(jps_a_p)%laction = .FALSE.
874	ssnd(jps_ht_p)%laction = .FALSE.
875	CASE ( 'ice only' )
876	ssnd(jps_a_p)%laction = .TRUE.
877	ssnd(jps_ht_p)%laction = .TRUE.
878	IF ( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
879	ssnd(jps_a_p)%nct = nn_cats_cpl
880	ssnd(jps_ht_p)%nct = nn_cats_cpl
881	ELSE
882	IF ( nn_cats_cpl > 1 ) THEN
883	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_mpnd%cldes if not exchanging category fields' )
884	ENDIF
885	ENDIF
886	CASE ( 'weighted ice' )
887	ssnd(jps_a_p)%laction = .TRUE.
888	ssnd(jps_ht_p)%laction = .TRUE.
889	IF ( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
890	ssnd(jps_a_p)%nct = nn_cats_cpl
891	ssnd(jps_ht_p)%nct = nn_cats_cpl
892	ENDIF
893	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_mpnd%cldes; '//sn_snd_mpnd%cldes )
894	END SELECT
895
896	! ! ------------------------- !
897	! ! Surface current !
898	! ! ------------------------- !
899	! ocean currents ! ice velocities
900	ssnd(jps_ocx1)%clname = 'O_OCurx1' ; ssnd(jps_ivx1)%clname = 'O_IVelx1'
901	ssnd(jps_ocy1)%clname = 'O_OCury1' ; ssnd(jps_ivy1)%clname = 'O_IVely1'
902	ssnd(jps_ocz1)%clname = 'O_OCurz1' ; ssnd(jps_ivz1)%clname = 'O_IVelz1'
903	ssnd(jps_ocxw)%clname = 'O_OCurxw'
904	ssnd(jps_ocyw)%clname = 'O_OCuryw'
905	!
906	ssnd(jps_ocx1:jps_ivz1)%nsgn = -1. ! vectors: change of the sign at the north fold
907
908	IF( sn_snd_crt%clvgrd == 'U,V' ) THEN
909	ssnd(jps_ocx1)%clgrid = 'U' ; ssnd(jps_ocy1)%clgrid = 'V'
910	ELSE IF( sn_snd_crt%clvgrd /= 'T' ) THEN
911	CALL ctl_stop( 'sn_snd_crt%clvgrd must be equal to T' )
912	ssnd(jps_ocx1:jps_ivz1)%clgrid = 'T' ! all oce and ice components on the same unique grid
913	ENDIF
914	ssnd(jps_ocx1:jps_ivz1)%laction = .TRUE. ! default: all are send
915	IF( TRIM( sn_snd_crt%clvref ) == 'spherical' ) ssnd( (/jps_ocz1, jps_ivz1/) )%laction = .FALSE.
916	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) ssnd(jps_ocx1:jps_ivz1)%nsgn = 1.
917	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
918	CASE( 'none' ) ; ssnd(jps_ocx1:jps_ivz1)%laction = .FALSE.
919	CASE( 'oce only' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
920	CASE( 'weighted oce and ice' ) ! nothing to do
921	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
922	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crt%cldes' )
923	END SELECT
924
925	ssnd(jps_ocxw:jps_ocyw)%nsgn = -1. ! vectors: change of the sign at the north fold
926
927	IF( sn_snd_crtw%clvgrd == 'U,V' ) THEN
928	ssnd(jps_ocxw)%clgrid = 'U' ; ssnd(jps_ocyw)%clgrid = 'V'
929	ELSE IF( sn_snd_crtw%clvgrd /= 'T' ) THEN
930	CALL ctl_stop( 'sn_snd_crtw%clvgrd must be equal to T' )
931	ENDIF
932	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) ssnd(jps_ocxw:jps_ocyw)%nsgn = 1.
933	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
934	CASE( 'none' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .FALSE.
935	CASE( 'oce only' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .TRUE.
936	CASE( 'weighted oce and ice' ) ! nothing to do
937	CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
938	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crtw%cldes' )
939	END SELECT
940
941	! ! ------------------------- !
942	! ! CO2 flux !
943	! ! ------------------------- !
944	ssnd(jps_co2)%clname = 'O_CO2FLX' ; IF( TRIM(sn_snd_co2%cldes) == 'coupled' ) ssnd(jps_co2 )%laction = .TRUE.
945	!
946	! ! ------------------------- !
947	! ! Sea surface freezing temp !
948	! ! ------------------------- !
949	! needed by Met Office
950	ssnd(jps_sstfrz)%clname = 'O_SSTFrz' ; IF( TRIM(sn_snd_sstfrz%cldes) == 'coupled' ) ssnd(jps_sstfrz)%laction = .TRUE.
951	!
952	! ! ------------------------- !
953	! ! Ice conductivity !
954	! ! ------------------------- !
955	! needed by Met Office
956	! Note that ultimately we will move to passing an ocean effective conductivity as well so there
957	! will be some changes to the parts of the code which currently relate only to ice conductivity
958	ssnd(jps_ttilyr )%clname = 'O_TtiLyr'
959	SELECT CASE ( TRIM( sn_snd_ttilyr%cldes ) )
960	CASE ( 'none' )
961	ssnd(jps_ttilyr)%laction = .FALSE.
962	CASE ( 'ice only' )
963	ssnd(jps_ttilyr)%laction = .TRUE.
964	IF ( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) THEN
965	ssnd(jps_ttilyr)%nct = nn_cats_cpl
966	ELSE
967	IF ( nn_cats_cpl > 1 ) THEN
968	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_ttilyr%cldes if not exchanging category fields' )
969	ENDIF
970	ENDIF
971	CASE ( 'weighted ice' )
972	ssnd(jps_ttilyr)%laction = .TRUE.
973	IF ( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) ssnd(jps_ttilyr)%nct = nn_cats_cpl
974	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_ttilyr%cldes;'//sn_snd_ttilyr%cldes )
975	END SELECT
976
977	ssnd(jps_kice )%clname = 'OIceKn'
978	SELECT CASE ( TRIM( sn_snd_cond%cldes ) )
979	CASE ( 'none' )
980	ssnd(jps_kice)%laction = .FALSE.
981	CASE ( 'ice only' )
982	ssnd(jps_kice)%laction = .TRUE.
983	IF ( TRIM( sn_snd_cond%clcat ) == 'yes' ) THEN
984	ssnd(jps_kice)%nct = nn_cats_cpl
985	ELSE
986	IF ( nn_cats_cpl > 1 ) THEN
987	CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_cond%cldes if not exchanging category fields' )
988	ENDIF
989	ENDIF
990	CASE ( 'weighted ice' )
991	ssnd(jps_kice)%laction = .TRUE.
992	IF ( TRIM( sn_snd_cond%clcat ) == 'yes' ) ssnd(jps_kice)%nct = nn_cats_cpl
993	CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_cond%cldes;'//sn_snd_cond%cldes )
994	END SELECT
995	!
996	! ! ------------------------- !
997	! ! Sea surface height !
998	! ! ------------------------- !
999	ssnd(jps_wlev)%clname = 'O_Wlevel' ; IF( TRIM(sn_snd_wlev%cldes) == 'coupled' ) ssnd(jps_wlev)%laction = .TRUE.
1000
1001	! ! ------------------------------- !
1002	! ! OPA-SAS coupling - snd by opa !
1003	! ! ------------------------------- !
1004	ssnd(jps_ssh )%clname = 'O_SSHght'
1005	ssnd(jps_soce )%clname = 'O_SSSal'
1006	ssnd(jps_e3t1st)%clname = 'O_E3T1st'
1007	ssnd(jps_fraqsr)%clname = 'O_FraQsr'
1008	!
1009	IF( nn_components == jp_iam_opa ) THEN
1010	ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
1011	ssnd( (/jps_toce, jps_soce, jps_ssh, jps_fraqsr, jps_ocx1, jps_ocy1/) )%laction = .TRUE.
1012	ssnd( jps_e3t1st )%laction = .NOT.ln_linssh
1013	! vector definition: not used but cleaner...
1014	ssnd(jps_ocx1)%clgrid = 'U' ! oce components given at U-point
1015	ssnd(jps_ocy1)%clgrid = 'V' ! and V-point
1016	sn_snd_crt%clvgrd = 'U,V'
1017	sn_snd_crt%clvor = 'local grid'
1018	sn_snd_crt%clvref = 'spherical'
1019	!
1020	IF(lwp) THEN ! control print
1021	WRITE(numout,*)
1022	WRITE(numout,*)' sent fields to SAS component '
1023	WRITE(numout,*)' sea surface temperature (T before, Celsius) '
1024	WRITE(numout,*)' sea surface salinity '
1025	WRITE(numout,*)' surface currents U,V on local grid and spherical coordinates'
1026	WRITE(numout,*)' sea surface height '
1027	WRITE(numout,*)' thickness of first ocean T level '
1028	WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
1029	WRITE(numout,*)
1030	ENDIF
1031	ENDIF
1032	! ! ------------------------------- !
1033	! ! OPA-SAS coupling - snd by sas !
1034	! ! ------------------------------- !
1035	ssnd(jps_sflx )%clname = 'I_SFLX'
1036	ssnd(jps_fice2 )%clname = 'IIceFrc'
1037	ssnd(jps_qsroce)%clname = 'I_QsrOce'
1038	ssnd(jps_qnsoce)%clname = 'I_QnsOce'
1039	ssnd(jps_oemp )%clname = 'IOEvaMPr'
1040	ssnd(jps_otx1 )%clname = 'I_OTaux1'
1041	ssnd(jps_oty1 )%clname = 'I_OTauy1'
1042	ssnd(jps_rnf )%clname = 'I_Runoff'
1043	ssnd(jps_taum )%clname = 'I_TauMod'
1044	!
1045	IF( nn_components == jp_iam_sas ) THEN
1046	IF( .NOT. ln_cpl ) ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
1047	ssnd( (/jps_qsroce, jps_qnsoce, jps_oemp, jps_fice2, jps_sflx, jps_otx1, jps_oty1, jps_taum/) )%laction = .TRUE.
1048	!
1049	! Change first letter to couple with atmosphere if already coupled with sea_ice
1050	! this is nedeed as each variable name used in the namcouple must be unique:
1051	! for example O_SSTSST sent by OPA to SAS and therefore S_SSTSST sent by SAS to the Atmosphere
1052	DO jn = 1, jpsnd
1053	IF ( ssnd(jn)%clname(1:1) == "O" ) ssnd(jn)%clname = "S"//ssnd(jn)%clname(2:LEN(ssnd(jn)%clname))
1054	END DO
1055	!
1056	IF(lwp) THEN ! control print
1057	WRITE(numout,*)
1058	IF( .NOT. ln_cpl ) THEN
1059	WRITE(numout,*)' sent fields to OPA component '
1060	ELSE
1061	WRITE(numout,*)' Additional sent fields to OPA component : '
1062	ENDIF
1063	WRITE(numout,*)' ice cover '
1064	WRITE(numout,*)' oce only EMP '
1065	WRITE(numout,*)' salt flux '
1066	WRITE(numout,*)' mixed oce-ice solar flux '
1067	WRITE(numout,*)' mixed oce-ice non solar flux '
1068	WRITE(numout,*)' wind stress U,V components'
1069	WRITE(numout,*)' wind stress module'
1070	ENDIF
1071	ENDIF
1072
1073	IF (ln_couple_test) THEN
1074	! Turn off coupling fields that can not be turned off via the namelists
1075	! ssnd(jps_toce)%laction = .FALSE.
1076
1077
1078	ssnd(jps_dummy_t)%clname = 'S_OC_DUMMY_T'
1079	ssnd(jps_dummy_t)%laction = .TRUE.
1080	ENDIF
1081
1082
1083	!
1084	! ================================ !
1085	! initialisation of the coupler !
1086	! ================================ !
1087
1088	! If ln_cpl is false, clearly we don't want to call cpl_dfine!
1089	IF (ln_cpl .OR. ln_couple_test) THEN
1090	write(numout,*) "RSRH call cpl_define", ln_cpl ,ln_couple_test ; flush(numout)
1091	CALL cpl_define(jprcv, jpsnd, nn_cplmodel)
1092
1093	ENDIF
1094	write(numout,*) "RSRH after cpl_define", ln_cpl ,ln_couple_test ; flush(numout)
1095
1096
1097	IF (ln_usecplmask) THEN
1098	xcplmask(:,:,:) = 0.
1099	CALL iom_open( 'cplmask', inum )
1100	CALL iom_get( inum, jpdom_unknown, 'cplmask', xcplmask(1:nlci,1:nlcj,1:nn_cplmodel), &
1101	& kstart = (/ mig(1),mjg(1),1 /), kcount = (/ nlci,nlcj,nn_cplmodel /) )
1102	CALL iom_close( inum )
1103	ELSE
1104	xcplmask(:,:,:) = 1.
1105	ENDIF
1106	xcplmask(:,:,0) = 1. - SUM( xcplmask(:,:,1:nn_cplmodel), dim = 3 )
1107	!
1108	ncpl_qsr_freq = cpl_freq( 'O_QsrOce' ) + cpl_freq( 'O_QsrMix' ) + cpl_freq( 'I_QsrOce' ) + cpl_freq( 'I_QsrMix' )
1109	IF( ln_dm2dc .AND. ln_cpl .AND. ncpl_qsr_freq /= 86400 ) &
1110	& CALL ctl_stop( 'sbc_cpl_init: diurnal cycle reconstruction (ln_dm2dc) needs daily couping for solar radiation' )
1111	IF( ln_dm2dc .AND. ln_cpl ) ncpl_qsr_freq = 86400 / ncpl_qsr_freq
1112	!
1113	END SUBROUTINE sbc_cpl_init
1114
1115
1116	SUBROUTINE sbc_cpl_rcv( kt, k_fsbc, k_ice )
1117	!!----------------------------------------------------------------------
1118	!! * ROUTINE sbc_cpl_rcv *
1119	!!
1120	!! ** Purpose : provide the stress over the ocean and, if no sea-ice,
1121	!! provide the ocean heat and freshwater fluxes.
1122	!!
1123	!! ** Method : - Receive all the atmospheric fields (stored in frcv array). called at each time step.
1124	!! OASIS controls if there is something do receive or not. nrcvinfo contains the info
1125	!! to know if the field was really received or not
1126	!!
1127	!! --> If ocean stress was really received:
1128	!!
1129	!! - transform the received ocean stress vector from the received
1130	!! referential and grid into an atmosphere-ocean stress in
1131	!! the (i,j) ocean referencial and at the ocean velocity point.
1132	!! The received stress are :
1133	!! - defined by 3 components (if cartesian coordinate)
1134	!! or by 2 components (if spherical)
1135	!! - oriented along geographical coordinate (if eastward-northward)
1136	!! or along the local grid coordinate (if local grid)
1137	!! - given at U- and V-point, resp. if received on 2 grids
1138	!! or at T-point if received on 1 grid
1139	!! Therefore and if necessary, they are successively
1140	!! processed in order to obtain them
1141	!! first as 2 components on the sphere
1142	!! second as 2 components oriented along the local grid
1143	!! third as 2 components on the U,V grid
1144	!!
1145	!! -->
1146	!!
1147	!! - In 'ocean only' case, non solar and solar ocean heat fluxes
1148	!! and total ocean freshwater fluxes
1149	!!
1150	!! ** Method : receive all fields from the atmosphere and transform
1151	!! them into ocean surface boundary condition fields
1152	!!
1153	!! ** Action : update utau, vtau ocean stress at U,V grid
1154	!! taum wind stress module at T-point
1155	!! wndm wind speed module at T-point over free ocean or leads in presence of sea-ice
1156	!! qns non solar heat fluxes including emp heat content (ocean only case)
1157	!! and the latent heat flux of solid precip. melting
1158	!! qsr solar ocean heat fluxes (ocean only case)
1159	!! emp upward mass flux [evap. - precip. (- runoffs) (- calving)] (ocean only case)
1160	!!----------------------------------------------------------------------
1161	USE zdf_oce, ONLY : ln_zdfswm
1162	!
1163	INTEGER, INTENT(in) :: kt ! ocean model time step index
1164	INTEGER, INTENT(in) :: k_fsbc ! frequency of sbc (-> ice model) computation
1165	INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
1166	!!
1167	LOGICAL :: llnewtx, llnewtau ! update wind stress components and module??
1168	INTEGER :: ji, jj, jn ! dummy loop indices
1169	INTEGER :: isec ! number of seconds since nit000 (assuming rdttra did not change since nit000)
1170	INTEGER :: ikchoix
1171	REAL(wp) :: zcumulneg, zcumulpos ! temporary scalars
1172	REAL(wp) :: zcoef ! temporary scalar
1173	REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3
1174	REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient
1175	REAL(wp) :: zzx, zzy ! temporary variables
1176	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty, zmsk, zemp, zqns, zqsr, ztx2, zty2
1177	!!----------------------------------------------------------------------
1178	!
1179	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1180	!
1181	! ! ======================================================= !
1182	! ! Receive all the atmos. fields (including ice information)
1183	! ! ======================================================= !
1184	isec = ( kt - nit000 ) * NINT( rdt ) ! date of exchanges
1185
1186
1187	DO jn = 1, jprcv ! received fields sent by the atmosphere
1188
1189	IF( srcv(jn)%laction ) THEN
1190	CALL cpl_rcv( jn, isec, frcv(jn)%z3, xcplmask(:,:,1:nn_cplmodel), nrcvinfo(jn) )
1191	WRITE(numout,*) "RSRH done cpl_rcv for field", jn, srcv(jn)%laction, nrcvinfo(jn) ;flush(numout)
1192	ENDIF
1193	END DO
1194
1195	! Do we want to overwrite our incoming tau
1196	IF (ln_couple_ow_tau) THEN
1197
1198	! ! ========================= !
1199	IF( srcv(jpr_otx1)%laction ) THEN ! ocean stress components !
1200	! ! ========================= !
1201	! define frcv(jpr_otx1)%z3(:,:,1) and frcv(jpr_oty1)%z3(:,:,1): stress at U/V point along model grid
1202	! => need to be done only when we receive the field
1203	IF( nrcvinfo(jpr_otx1) == OASIS_Rcv ) THEN
1204	!
1205	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1206	! ! (cartesian to spherical -> 3 to 2 components)
1207	!
1208	CALL geo2oce( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), frcv(jpr_otz1)%z3(:,:,1), &
1209	& srcv(jpr_otx1)%clgrid, ztx, zty )
1210	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1211	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1212	!
1213	IF( srcv(jpr_otx2)%laction ) THEN
1214	CALL geo2oce( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), frcv(jpr_otz2)%z3(:,:,1), &
1215	& srcv(jpr_otx2)%clgrid, ztx, zty )
1216	frcv(jpr_otx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1217	frcv(jpr_oty2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1218	ENDIF
1219	!
1220	ENDIF
1221	!
1222	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1223	! ! (geographical to local grid -> rotate the components)
1224
1225	IF( srcv(jpr_otx1)%clgrid == 'U' .AND. (.NOT. srcv(jpr_otx2)%laction) ) THEN
1226	! Temporary code for HadGEM3 - will be removed eventually.
1227	! Only applies when we have only taux on U grid and tauy on V grid
1228	DO jj=2,jpjm1
1229	DO ji=2,jpim1
1230	ztx(ji,jj)=0.25*vmask(ji,jj,1) &
1231	*(frcv(jpr_otx1)%z3(ji,jj,1)+frcv(jpr_otx1)%z3(ji-1,jj,1) &
1232	+frcv(jpr_otx1)%z3(ji,jj+1,1)+frcv(jpr_otx1)%z3(ji-1,jj+1,1))
1233	zty(ji,jj)=0.25*umask(ji,jj,1) &
1234	*(frcv(jpr_oty1)%z3(ji,jj,1)+frcv(jpr_oty1)%z3(ji+1,jj,1) &
1235	+frcv(jpr_oty1)%z3(ji,jj-1,1)+frcv(jpr_oty1)%z3(ji+1,jj-1,1))
1236	ENDDO
1237	ENDDO
1238
1239	ikchoix = 1
1240	CALL repcmo (frcv(jpr_otx1)%z3(:,:,1),zty,ztx,frcv(jpr_oty1)%z3(:,:,1),ztx2,zty2,ikchoix)
1241	CALL lbc_lnk ('jpr_otx1', ztx2,'U', -1. )
1242	CALL lbc_lnk ('jpr_oty1', zty2,'V', -1. )
1243	frcv(jpr_otx1)%z3(:,:,1)=ztx2(:,:)
1244	frcv(jpr_oty1)%z3(:,:,1)=zty2(:,:)
1245	ELSE
1246	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->i', ztx )
1247	frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1248	IF( srcv(jpr_otx2)%laction ) THEN
1249	CALL rot_rep( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), srcv(jpr_otx2)%clgrid, 'en->j', zty )
1250	ELSE
1251	CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->j', zty )
1252	ENDIF
1253	frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 2nd grid
1254	ENDIF
1255	ENDIF
1256	!
1257	IF( srcv(jpr_otx1)%clgrid == 'T' ) THEN
1258	DO jj = 2, jpjm1 ! T ==> (U,V)
1259	DO ji = fs_2, fs_jpim1 ! vector opt.
1260	frcv(jpr_otx1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_otx1)%z3(ji+1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1) )
1261	frcv(jpr_oty1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_oty1)%z3(ji ,jj+1,1) + frcv(jpr_oty1)%z3(ji,jj,1) )
1262	END DO
1263	END DO
1264	CALL lbc_lnk_multi( 'sbccpl', frcv(jpr_otx1)%z3(:,:,1), 'U', -1., frcv(jpr_oty1)%z3(:,:,1), 'V', -1. )
1265	ENDIF
1266	llnewtx = .TRUE.
1267	ELSE
1268	llnewtx = .FALSE.
1269	ENDIF
1270	! ! ========================= !
1271	ELSE ! No dynamical coupling !
1272	! ! ========================= !
1273	frcv(jpr_otx1)%z3(:,:,1) = 0.e0 ! here simply set to zero
1274	frcv(jpr_oty1)%z3(:,:,1) = 0.e0 ! an external read in a file can be added instead
1275	llnewtx = .TRUE.
1276	!
1277	ENDIF
1278
1279	! ! ========================= !
1280	! ! wind stress module ! (taum)
1281	! ! ========================= !
1282	IF( .NOT. srcv(jpr_taum)%laction ) THEN ! compute wind stress module from its components if not received
1283	! => need to be done only when otx1 was changed
1284	IF( llnewtx ) THEN
1285	DO jj = 2, jpjm1
1286	DO ji = fs_2, fs_jpim1 ! vect. opt.
1287	zzx = frcv(jpr_otx1)%z3(ji-1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1)
1288	zzy = frcv(jpr_oty1)%z3(ji ,jj-1,1) + frcv(jpr_oty1)%z3(ji,jj,1)
1289	frcv(jpr_taum)%z3(ji,jj,1) = 0.5 * SQRT( zzx * zzx + zzy * zzy )
1290	END DO
1291	END DO
1292	CALL lbc_lnk( 'sbccpl', frcv(jpr_taum)%z3(:,:,1), 'T', 1. )
1293	llnewtau = .TRUE.
1294	ELSE
1295	llnewtau = .FALSE.
1296	ENDIF
1297	ELSE
1298	llnewtau = nrcvinfo(jpr_taum) == OASIS_Rcv
1299	! Stress module can be negative when received (interpolation problem)
1300	IF( llnewtau ) THEN
1301	frcv(jpr_taum)%z3(:,:,1) = MAX( 0._wp, frcv(jpr_taum)%z3(:,:,1) )
1302	ENDIF
1303	ENDIF
1304
1305	!
1306	! ! ========================= !
1307	! ! 10 m wind speed ! (wndm)
1308	! ! ========================= !
1309	IF( .NOT. srcv(jpr_w10m)%laction ) THEN ! compute wind spreed from wind stress module if not received
1310	! => need to be done only when taumod was changed
1311	IF( llnewtau ) THEN
1312	zcoef = 1. / ( zrhoa * zcdrag )
1313	DO jj = 1, jpj
1314	DO ji = 1, jpi
1315	frcv(jpr_w10m)%z3(ji,jj,1) = SQRT( frcv(jpr_taum)%z3(ji,jj,1) * zcoef )
1316	END DO
1317	END DO
1318	ENDIF
1319	ENDIF
1320
1321	! u(v)tau and taum will be modified by ice model
1322	! -> need to be reset before each call of the ice/fsbc
1323	IF( MOD( kt-1, k_fsbc ) == 0 ) THEN
1324	!
1325	IF( ln_mixcpl ) THEN
1326	utau(:,:) = utau(:,:) * xcplmask(:,:,0) + frcv(jpr_otx1)%z3(:,:,1) * zmsk(:,:)
1327	vtau(:,:) = vtau(:,:) * xcplmask(:,:,0) + frcv(jpr_oty1)%z3(:,:,1) * zmsk(:,:)
1328	taum(:,:) = taum(:,:) * xcplmask(:,:,0) + frcv(jpr_taum)%z3(:,:,1) * zmsk(:,:)
1329	wndm(:,:) = wndm(:,:) * xcplmask(:,:,0) + frcv(jpr_w10m)%z3(:,:,1) * zmsk(:,:)
1330	ELSE
1331	utau(:,:) = frcv(jpr_otx1)%z3(:,:,1)
1332	vtau(:,:) = frcv(jpr_oty1)%z3(:,:,1)
1333	taum(:,:) = frcv(jpr_taum)%z3(:,:,1)
1334	wndm(:,:) = frcv(jpr_w10m)%z3(:,:,1)
1335	ENDIF
1336	CALL iom_put( "taum_oce", taum ) ! output wind stress module
1337	!
1338	ENDIF
1339
1340	ENDIF ! use tau fields
1341
1342
1343
1344	! If we want to actually use other (non tau) incoming fields in the model then
1345	! we set ln_couple_ow = TRUE, otherwise, we're just running a test
1346	! of the coupling field exchange for these fields
1347	IF (ln_couple_ow_gen) THEN
1348
1349	! ! ================== !
1350	! ! atmosph. CO2 (ppm) !
1351	! ! ================== !
1352	IF( srcv(jpr_co2)%laction ) atm_co2(:,:) = frcv(jpr_co2)%z3(:,:,1)
1353	!
1354	! ! ================== !
1355	! ! ice skin temp. !
1356	! ! ================== !
1357	#if defined key_si3
1358	! needed by Met Office
1359	IF( srcv(jpr_ts_ice)%laction ) THEN
1360	WHERE ( frcv(jpr_ts_ice)%z3(:,:,:) > 0.0 ) ; tsfc_ice(:,:,:) = 0.0
1361	ELSEWHERE( frcv(jpr_ts_ice)%z3(:,:,:) < -60. ) ; tsfc_ice(:,:,:) = -60.
1362	ELSEWHERE ; tsfc_ice(:,:,:) = frcv(jpr_ts_ice)%z3(:,:,:)
1363	END WHERE
1364	ENDIF
1365	#endif
1366	! ! ========================= !
1367	! ! Mean Sea Level Pressure ! (taum)
1368	! ! ========================= !
1369	IF( srcv(jpr_mslp)%laction ) THEN ! UKMO SHELF effect of atmospheric pressure on SSH
1370	IF( kt /= nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) !* Swap of ssh_ib fields
1371
1372	r1_grau = 1.e0 / (grav * rau0) !* constant for optimization
1373	ssh_ib(:,:) = - ( frcv(jpr_mslp)%z3(:,:,1) - rpref ) * r1_grau ! equivalent ssh (inverse barometer)
1374	apr (:,:) = frcv(jpr_mslp)%z3(:,:,1) !atmospheric pressure
1375
1376	IF( kt == nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) ! correct this later (read from restart if possible)
1377	END IF
1378	!
1379	IF( ln_sdw ) THEN ! Stokes Drift correction activated
1380	! ! ========================= !
1381	! ! Stokes drift u !
1382	! ! ========================= !
1383	IF( srcv(jpr_sdrftx)%laction ) ut0sd(:,:) = frcv(jpr_sdrftx)%z3(:,:,1)
1384	!
1385	! ! ========================= !
1386	! ! Stokes drift v !
1387	! ! ========================= !
1388	IF( srcv(jpr_sdrfty)%laction ) vt0sd(:,:) = frcv(jpr_sdrfty)%z3(:,:,1)
1389	!
1390	! ! ========================= !
1391	! ! Wave mean period !
1392	! ! ========================= !
1393	IF( srcv(jpr_wper)%laction ) wmp(:,:) = frcv(jpr_wper)%z3(:,:,1)
1394	!
1395	! ! ========================= !
1396	! ! Significant wave height !
1397	! ! ========================= !
1398	IF( srcv(jpr_hsig)%laction ) hsw(:,:) = frcv(jpr_hsig)%z3(:,:,1)
1399	!
1400	! ! ========================= !
1401	! ! Wave peak frequency !
1402	! ! ========================= !
1403	IF( srcv(jpr_wfreq)%laction ) wfreq(:,:) = frcv(jpr_wfreq)%z3(:,:,1)
1404	!
1405	! ! ========================= !
1406	! ! Vertical mixing Qiao !
1407	! ! ========================= !
1408	IF( srcv(jpr_wnum)%laction .AND. ln_zdfswm ) wnum(:,:) = frcv(jpr_wnum)%z3(:,:,1)
1409
1410	! Calculate the 3D Stokes drift both in coupled and not fully uncoupled mode
1411	IF( srcv(jpr_sdrftx)%laction .OR. srcv(jpr_sdrfty)%laction .OR. srcv(jpr_wper)%laction &
1412	.OR. srcv(jpr_hsig)%laction .OR. srcv(jpr_wfreq)%laction) THEN
1413	CALL sbc_stokes()
1414	ENDIF
1415	ENDIF
1416	! ! ========================= !
1417	! ! Stress adsorbed by waves !
1418	! ! ========================= !
1419	IF( srcv(jpr_tauwoc)%laction .AND. ln_tauwoc ) tauoc_wave(:,:) = frcv(jpr_tauwoc)%z3(:,:,1)
1420
1421	! ! ========================= !
1422	! ! Stress component by waves !
1423	! ! ========================= !
1424	IF( srcv(jpr_tauwx)%laction .AND. srcv(jpr_tauwy)%laction .AND. ln_tauw ) THEN
1425	tauw_x(:,:) = frcv(jpr_tauwx)%z3(:,:,1)
1426	tauw_y(:,:) = frcv(jpr_tauwy)%z3(:,:,1)
1427	ENDIF
1428
1429	! ! ========================= !
1430	! ! Wave drag coefficient !
1431	! ! ========================= !
1432	IF( srcv(jpr_wdrag)%laction .AND. ln_cdgw ) cdn_wave(:,:) = frcv(jpr_wdrag)%z3(:,:,1)
1433
1434	! Fields received by SAS when OASIS coupling
1435	! (arrays no more filled at sbcssm stage)
1436	! ! ================== !
1437	! ! SSS !
1438	! ! ================== !
1439	IF( srcv(jpr_soce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1440	sss_m(:,:) = frcv(jpr_soce)%z3(:,:,1)
1441	CALL iom_put( 'sss_m', sss_m )
1442	ENDIF
1443	!
1444	! ! ================== !
1445	! ! SST !
1446	! ! ================== !
1447	IF( srcv(jpr_toce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1448	sst_m(:,:) = frcv(jpr_toce)%z3(:,:,1)
1449	IF( srcv(jpr_soce)%laction .AND. l_useCT ) THEN ! make sure that sst_m is the potential temperature
1450	sst_m(:,:) = eos_pt_from_ct( sst_m(:,:), sss_m(:,:) )
1451	ENDIF
1452	ENDIF
1453	! ! ================== !
1454	! ! SSH !
1455	! ! ================== !
1456	IF( srcv(jpr_ssh )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1457	ssh_m(:,:) = frcv(jpr_ssh )%z3(:,:,1)
1458	CALL iom_put( 'ssh_m', ssh_m )
1459	ENDIF
1460	! ! ================== !
1461	! ! surface currents !
1462	! ! ================== !
1463	IF( srcv(jpr_ocx1)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1464	ssu_m(:,:) = frcv(jpr_ocx1)%z3(:,:,1)
1465	ub (:,:,1) = ssu_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1466	un (:,:,1) = ssu_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1467	CALL iom_put( 'ssu_m', ssu_m )
1468	ENDIF
1469	IF( srcv(jpr_ocy1)%laction ) THEN
1470	ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
1471	vb (:,:,1) = ssv_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
1472	vn (:,:,1) = ssv_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
1473	CALL iom_put( 'ssv_m', ssv_m )
1474	ENDIF
1475	! ! ======================== !
1476	! ! first T level thickness !
1477	! ! ======================== !
1478	IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
1479	e3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
1480	CALL iom_put( 'e3t_m', e3t_m(:,:) )
1481	ENDIF
1482	! ! ================================ !
1483	! ! fraction of solar net radiation !
1484	! ! ================================ !
1485	IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
1486	frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
1487	CALL iom_put( 'frq_m', frq_m )
1488	ENDIF
1489
1490	! ! ========================= !
1491	IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
1492	! ! ========================= !
1493	!
1494	! ! total freshwater fluxes over the ocean (emp)
1495	IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
1496	SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
1497	CASE( 'conservative' )
1498	zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
1499	CASE( 'oce only', 'oce and ice' )
1500	zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
1501	CASE default
1502	CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
1503	END SELECT
1504	ELSE
1505	zemp(:,:) = 0._wp
1506	ENDIF
1507	!
1508	! ! runoffs and calving (added in emp)
1509	IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1510	IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
1511
1512	IF( srcv(jpr_icb)%laction ) THEN
1513	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1514	rnf(:,:) = rnf(:,:) + fwficb(:,:) ! iceberg added to runfofs
1515	ENDIF
1516	IF( srcv(jpr_isf)%laction ) fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1) ! fresh water flux from the isf (fwfisf <0 mean melting)
1517
1518	IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
1519	ELSE ; emp(:,:) = zemp(:,:)
1520	ENDIF
1521	!
1522	! ! non solar heat flux over the ocean (qns)
1523	IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1524	ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1525	ELSE ; zqns(:,:) = 0._wp
1526	END IF
1527	! update qns over the free ocean with:
1528	IF( nn_components /= jp_iam_opa ) THEN
1529	zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
1530	IF( srcv(jpr_snow )%laction ) THEN
1531	zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * rLfus ! energy for melting solid precipitation over the free ocean
1532	ENDIF
1533	ENDIF
1534	!
1535	IF( srcv(jpr_icb)%laction ) zqns(:,:) = zqns(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove heat content associated to iceberg melting
1536	!
1537	IF( ln_mixcpl ) THEN ; qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
1538	ELSE ; qns(:,:) = zqns(:,:)
1539	ENDIF
1540
1541	! ! solar flux over the ocean (qsr)
1542	IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
1543	ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
1544	ELSE ; zqsr(:,:) = 0._wp
1545	ENDIF
1546	IF( ln_dm2dc .AND. ln_cpl ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
1547	IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
1548	ELSE ; qsr(:,:) = zqsr(:,:)
1549	ENDIF
1550	!
1551	! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
1552	IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
1553	! Ice cover (received by opa in case of opa <-> sas coupling)
1554	IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
1555	!
1556	ENDIF
1557
1558	ENDIF ! Overwrite coupling fields? (ln_couple_ow_gen)
1559	!
1560	END SUBROUTINE sbc_cpl_rcv
1561
1562
1563	SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
1564	!!----------------------------------------------------------------------
1565	!! * ROUTINE sbc_cpl_ice_tau *
1566	!!
1567	!! ** Purpose : provide the stress over sea-ice in coupled mode
1568	!!
1569	!! ** Method : transform the received stress from the atmosphere into
1570	!! an atmosphere-ice stress in the (i,j) ocean referencial
1571	!! and at the velocity point of the sea-ice model:
1572	!! 'C'-grid : i- (j-) components given at U- (V-) point
1573	!!
1574	!! The received stress are :
1575	!! - defined by 3 components (if cartesian coordinate)
1576	!! or by 2 components (if spherical)
1577	!! - oriented along geographical coordinate (if eastward-northward)
1578	!! or along the local grid coordinate (if local grid)
1579	!! - given at U- and V-point, resp. if received on 2 grids
1580	!! or at a same point (T or I) if received on 1 grid
1581	!! Therefore and if necessary, they are successively
1582	!! processed in order to obtain them
1583	!! first as 2 components on the sphere
1584	!! second as 2 components oriented along the local grid
1585	!! third as 2 components on the ice grid point
1586	!!
1587	!! Except in 'oce and ice' case, only one vector stress field
1588	!! is received. It has already been processed in sbc_cpl_rcv
1589	!! so that it is now defined as (i,j) components given at U-
1590	!! and V-points, respectively.
1591	!!
1592	!! ** Action : return ptau_i, ptau_j, the stress over the ice
1593	!!----------------------------------------------------------------------
1594	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
1595	REAL(wp), INTENT(out), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
1596	!!
1597	INTEGER :: ji, jj ! dummy loop indices
1598	INTEGER :: itx ! index of taux over ice
1599	REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty
1600	!!----------------------------------------------------------------------
1601	!
1602	IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
1603	ELSE ; itx = jpr_otx1
1604	ENDIF
1605
1606	! do something only if we just received the stress from atmosphere
1607	IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
1608	! ! ======================= !
1609	IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
1610	! ! ======================= !
1611	!
1612	IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
1613	! ! (cartesian to spherical -> 3 to 2 components)
1614	CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
1615	& srcv(jpr_itx1)%clgrid, ztx, zty )
1616	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
1617	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
1618	!
1619	IF( srcv(jpr_itx2)%laction ) THEN
1620	CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
1621	& srcv(jpr_itx2)%clgrid, ztx, zty )
1622	frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
1623	frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
1624	ENDIF
1625	!
1626	ENDIF
1627	!
1628	IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
1629	! ! (geographical to local grid -> rotate the components)
1630	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
1631	IF( srcv(jpr_itx2)%laction ) THEN
1632	CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
1633	ELSE
1634	CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
1635	ENDIF
1636	frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
1637	frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
1638	ENDIF
1639	! ! ======================= !
1640	ELSE ! use ocean stress !
1641	! ! ======================= !
1642	frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
1643	frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
1644	!
1645	ENDIF
1646	! ! ======================= !
1647	! ! put on ice grid !
1648	! ! ======================= !
1649	!
1650	! j+1 j -----V---F
1651	! ice stress on ice velocity point ! \|
1652	! (C-grid ==>(U,V)) j \| T U
1653	! \| \|
1654	! j j-1 -I-------\|
1655	! (for I) \| \|
1656	! i-1 i i
1657	! i i+1 (for I)
1658	SELECT CASE ( srcv(jpr_itx1)%clgrid )
1659	CASE( 'U' )
1660	p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
1661	p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
1662	CASE( 'F' )
1663	DO jj = 2, jpjm1 ! F ==> (U,V)
1664	DO ji = fs_2, fs_jpim1 ! vector opt.
1665	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji,jj,1) + frcv(jpr_itx1)%z3(ji ,jj-1,1) )
1666	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji,jj,1) + frcv(jpr_ity1)%z3(ji-1,jj ,1) )
1667	END DO
1668	END DO
1669	CASE( 'T' )
1670	DO jj = 2, jpjm1 ! T ==> (U,V)
1671	DO ji = fs_2, fs_jpim1 ! vector opt.
1672	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
1673	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
1674	END DO
1675	END DO
1676	CASE( 'I' )
1677	DO jj = 2, jpjm1 ! I ==> (U,V)
1678	DO ji = 2, jpim1 ! NO vector opt.
1679	p_taui(ji,jj) = 0.5 * ( frcv(jpr_itx1)%z3(ji+1,jj+1,1) + frcv(jpr_itx1)%z3(ji+1,jj ,1) )
1680	p_tauj(ji,jj) = 0.5 * ( frcv(jpr_ity1)%z3(ji+1,jj+1,1) + frcv(jpr_ity1)%z3(ji ,jj+1,1) )
1681	END DO
1682	END DO
1683	END SELECT
1684	IF( srcv(jpr_itx1)%clgrid /= 'U' ) THEN
1685	CALL lbc_lnk_multi( 'sbccpl', p_taui, 'U', -1., p_tauj, 'V', -1. )
1686	ENDIF
1687
1688	ENDIF
1689	!
1690	END SUBROUTINE sbc_cpl_ice_tau
1691
1692
1693	SUBROUTINE sbc_cpl_ice_flx( picefr, palbi, psst, pist, phs, phi )
1694	!!----------------------------------------------------------------------
1695	!! * ROUTINE sbc_cpl_ice_flx *
1696	!!
1697	!! ** Purpose : provide the heat and freshwater fluxes of the ocean-ice system
1698	!!
1699	!! ** Method : transform the fields received from the atmosphere into
1700	!! surface heat and fresh water boundary condition for the
1701	!! ice-ocean system. The following fields are provided:
1702	!! * total non solar, solar and freshwater fluxes (qns_tot,
1703	!! qsr_tot and emp_tot) (total means weighted ice-ocean flux)
1704	!! NB: emp_tot include runoffs and calving.
1705	!! * fluxes over ice (qns_ice, qsr_ice, emp_ice) where
1706	!! emp_ice = sublimation - solid precipitation as liquid
1707	!! precipitation are re-routed directly to the ocean and
1708	!! calving directly enter the ocean (runoffs are read but included in trasbc.F90)
1709	!! * solid precipitation (sprecip), used to add to qns_tot
1710	!! the heat lost associated to melting solid precipitation
1711	!! over the ocean fraction.
1712	!! * heat content of rain, snow and evap can also be provided,
1713	!! otherwise heat flux associated with these mass flux are
1714	!! guessed (qemp_oce, qemp_ice)
1715	!!
1716	!! - the fluxes have been separated from the stress as
1717	!! (a) they are updated at each ice time step compare to
1718	!! an update at each coupled time step for the stress, and
1719	!! (b) the conservative computation of the fluxes over the
1720	!! sea-ice area requires the knowledge of the ice fraction
1721	!! after the ice advection and before the ice thermodynamics,
1722	!! so that the stress is updated before the ice dynamics
1723	!! while the fluxes are updated after it.
1724	!!
1725	!! ** Details
1726	!! qns_tot = (1-a) * qns_oce + a * qns_ice => provided
1727	!! + qemp_oce + qemp_ice => recalculated and added up to qns
1728	!!
1729	!! qsr_tot = (1-a) * qsr_oce + a * qsr_ice => provided
1730	!!
1731	!! emp_tot = emp_oce + emp_ice => calving is provided and added to emp_tot (and emp_oce).
1732	!! runoff (which includes rivers+icebergs) and iceshelf
1733	!! are provided but not included in emp here. Only runoff will
1734	!! be included in emp in other parts of NEMO code
1735	!! ** Action : update at each nf_ice time step:
1736	!! qns_tot, qsr_tot non-solar and solar total heat fluxes
1737	!! qns_ice, qsr_ice non-solar and solar heat fluxes over the ice
1738	!! emp_tot total evaporation - precipitation(liquid and solid) (-calving)
1739	!! emp_ice ice sublimation - solid precipitation over the ice
1740	!! dqns_ice d(non-solar heat flux)/d(Temperature) over the ice
1741	!! sprecip solid precipitation over the ocean
1742	!!----------------------------------------------------------------------
1743	REAL(wp), INTENT(in), DIMENSION(:,:) :: picefr ! ice fraction [0 to 1]
1744	! !! ! optional arguments, used only in 'mixed oce-ice' case
1745	REAL(wp), INTENT(in), DIMENSION(:,:,:), OPTIONAL :: palbi ! all skies ice albedo
1746	REAL(wp), INTENT(in), DIMENSION(:,: ), OPTIONAL :: psst ! sea surface temperature [Celsius]
1747	REAL(wp), INTENT(in), DIMENSION(:,:,:), OPTIONAL :: pist ! ice surface temperature [Kelvin]
1748	REAL(wp), INTENT(in), DIMENSION(:,:,:), OPTIONAL :: phs ! snow depth [m]
1749	REAL(wp), INTENT(in), DIMENSION(:,:,:), OPTIONAL :: phi ! ice thickness [m]
1750	!
1751	INTEGER :: ji, jj, jl ! dummy loop index
1752	REAL(wp) :: ztri ! local scalar
1753	REAL(wp), DIMENSION(jpi,jpj) :: zcptn, zcptrain, zcptsnw, ziceld, zmsk, zsnw
1754	REAL(wp), DIMENSION(jpi,jpj) :: zemp_tot, zemp_ice, zemp_oce, ztprecip, zsprecip , zevap_oce, zdevap_ice
1755	REAL(wp), DIMENSION(jpi,jpj) :: zqns_tot, zqns_oce, zqsr_tot, zqsr_oce, zqprec_ice, zqemp_oce, zqemp_ice
1756	REAL(wp), DIMENSION(jpi,jpj,jpl) :: zqns_ice, zqsr_ice, zdqns_ice, zqevap_ice, zevap_ice !!gm , zfrqsr_tr_i
1757	!!----------------------------------------------------------------------
1758	!
1759	IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
1760	ziceld(:,:) = 1._wp - picefr(:,:)
1761	zcptn (:,:) = rcp * sst_m(:,:)
1762	!
1763	! ! ========================= !
1764	! ! freshwater budget ! (emp_tot)
1765	! ! ========================= !
1766	!
1767	! ! solid Precipitation (sprecip)
1768	! ! liquid + solid Precipitation (tprecip)
1769	! ! total Evaporation - total Precipitation (emp_tot)
1770	! ! sublimation - solid precipitation (cell average) (emp_ice)
1771	SELECT CASE( TRIM( sn_rcv_emp%cldes ) )
1772	CASE( 'conservative' ) ! received fields: jpr_rain, jpr_snow, jpr_ievp, jpr_tevp
1773	zsprecip(:,:) = frcv(jpr_snow)%z3(:,:,1) ! May need to ensure positive here
1774	ztprecip(:,:) = frcv(jpr_rain)%z3(:,:,1) + zsprecip(:,:) ! May need to ensure positive here
1775	zemp_tot(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ztprecip(:,:)
1776	zemp_ice(:,:) = ( frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_snow)%z3(:,:,1) ) * picefr(:,:)
1777	CASE( 'oce and ice' ) ! received fields: jpr_sbpr, jpr_semp, jpr_oemp, jpr_ievp
1778	zemp_tot(:,:) = ziceld(:,:) * frcv(jpr_oemp)%z3(:,:,1) + picefr(:,:) * frcv(jpr_sbpr)%z3(:,:,1)
1779	zemp_ice(:,:) = frcv(jpr_semp)%z3(:,:,1) * picefr(:,:)
1780	zsprecip(:,:) = frcv(jpr_ievp)%z3(:,:,1) - frcv(jpr_semp)%z3(:,:,1)
1781	ztprecip(:,:) = frcv(jpr_semp)%z3(:,:,1) - frcv(jpr_sbpr)%z3(:,:,1) + zsprecip(:,:)
1782	CASE( 'none' ) ! Not available as for now: needs additional coding below when computing zevap_oce
1783	! ! since fields received are not defined with none option
1784	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_emp value in namelist namsbc_cpl' )
1785	END SELECT
1786
1787	#if defined key_si3
1788	! zsnw = snow fraction over ice after wind blowing (=picefr if no blowing)
1789	zsnw(:,:) = 0._wp ; CALL ice_thd_snwblow( ziceld, zsnw )
1790
1791	! --- evaporation minus precipitation corrected (because of wind blowing on snow) --- !
1792	zemp_ice(:,:) = zemp_ice(:,:) + zsprecip(:,:) * ( picefr(:,:) - zsnw(:,:) ) ! emp_ice = A * sublimation - zsnw * sprecip
1793	zemp_oce(:,:) = zemp_tot(:,:) - zemp_ice(:,:) ! emp_oce = emp_tot - emp_ice
1794
1795	! --- evaporation over ocean (used later for qemp) --- !
1796	zevap_oce(:,:) = frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:)
1797
1798	! --- evaporation over ice (kg/m2/s) --- !
1799	DO jl=1,jpl
1800	IF (sn_rcv_emp%clcat == 'yes') THEN ; zevap_ice(:,:,jl) = frcv(jpr_ievp)%z3(:,:,jl)
1801	ELSE ; zevap_ice(:,:,jl) = frcv(jpr_ievp)%z3(:,:,1 ) ; ENDIF
1802	ENDDO
1803
1804	! since the sensitivity of evap to temperature (devap/dT) is not prescribed by the atmosphere, we set it to 0
1805	! therefore, sublimation is not redistributed over the ice categories when no subgrid scale fluxes are provided by atm.
1806	zdevap_ice(:,:) = 0._wp
1807
1808	! --- Continental fluxes --- !
1809	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1810	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1811	ENDIF
1812	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot and emp_oce)
1813	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1814	zemp_oce(:,:) = zemp_oce(:,:) - frcv(jpr_cal)%z3(:,:,1)
1815	ENDIF
1816	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1817	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1818	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1819	ENDIF
1820	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1821	fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1822	ENDIF
1823
1824	IF( ln_mixcpl ) THEN
1825	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1826	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1827	emp_oce(:,:) = emp_oce(:,:) * xcplmask(:,:,0) + zemp_oce(:,:) * zmsk(:,:)
1828	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1829	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1830	DO jl = 1, jpl
1831	evap_ice (:,:,jl) = evap_ice (:,:,jl) * xcplmask(:,:,0) + zevap_ice (:,:,jl) * zmsk(:,:)
1832	devap_ice(:,:,jl) = devap_ice(:,:,jl) * xcplmask(:,:,0) + zdevap_ice(:,:) * zmsk(:,:)
1833	END DO
1834	ELSE
1835	emp_tot (:,:) = zemp_tot (:,:)
1836	emp_ice (:,:) = zemp_ice (:,:)
1837	emp_oce (:,:) = zemp_oce (:,:)
1838	sprecip (:,:) = zsprecip (:,:)
1839	tprecip (:,:) = ztprecip (:,:)
1840	evap_ice(:,:,:) = zevap_ice(:,:,:)
1841	DO jl = 1, jpl
1842	devap_ice(:,:,jl) = zdevap_ice(:,:)
1843	END DO
1844	ENDIF
1845
1846	#else
1847	zsnw(:,:) = picefr(:,:)
1848	! --- Continental fluxes --- !
1849	IF( srcv(jpr_rnf)%laction ) THEN ! runoffs (included in emp later on)
1850	rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
1851	ENDIF
1852	IF( srcv(jpr_cal)%laction ) THEN ! calving (put in emp_tot)
1853	zemp_tot(:,:) = zemp_tot(:,:) - frcv(jpr_cal)%z3(:,:,1)
1854	ENDIF
1855	IF( srcv(jpr_icb)%laction ) THEN ! iceberg added to runoffs
1856	fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
1857	rnf(:,:) = rnf(:,:) + fwficb(:,:)
1858	ENDIF
1859	IF( srcv(jpr_isf)%laction ) THEN ! iceshelf (fwfisf <0 mean melting)
1860	fwfisf(:,:) = - frcv(jpr_isf)%z3(:,:,1)
1861	ENDIF
1862	!
1863	IF( ln_mixcpl ) THEN
1864	emp_tot(:,:) = emp_tot(:,:) * xcplmask(:,:,0) + zemp_tot(:,:) * zmsk(:,:)
1865	emp_ice(:,:) = emp_ice(:,:) * xcplmask(:,:,0) + zemp_ice(:,:) * zmsk(:,:)
1866	sprecip(:,:) = sprecip(:,:) * xcplmask(:,:,0) + zsprecip(:,:) * zmsk(:,:)
1867	tprecip(:,:) = tprecip(:,:) * xcplmask(:,:,0) + ztprecip(:,:) * zmsk(:,:)
1868	ELSE
1869	emp_tot(:,:) = zemp_tot(:,:)
1870	emp_ice(:,:) = zemp_ice(:,:)
1871	sprecip(:,:) = zsprecip(:,:)
1872	tprecip(:,:) = ztprecip(:,:)
1873	ENDIF
1874	!
1875	#endif
1876
1877	! outputs
1878	!! IF( srcv(jpr_rnf)%laction ) CALL iom_put( 'runoffs' , rnf(:,:) * tmask(:,:,1) ) ! runoff
1879	!! IF( srcv(jpr_isf)%laction ) CALL iom_put( 'iceshelf_cea', -fwfisf(:,:) * tmask(:,:,1) ) ! iceshelf
1880	IF( srcv(jpr_cal)%laction ) CALL iom_put( 'calving_cea' , frcv(jpr_cal)%z3(:,:,1) * tmask(:,:,1) ) ! calving
1881	IF( srcv(jpr_icb)%laction ) CALL iom_put( 'iceberg_cea' , frcv(jpr_icb)%z3(:,:,1) * tmask(:,:,1) ) ! icebergs
1882	IF( iom_use('snowpre') ) CALL iom_put( 'snowpre' , sprecip(:,:) ) ! Snow
1883	IF( iom_use('precip') ) CALL iom_put( 'precip' , tprecip(:,:) ) ! total precipitation
1884	IF( iom_use('rain') ) CALL iom_put( 'rain' , tprecip(:,:) - sprecip(:,:) ) ! liquid precipitation
1885	IF( iom_use('snow_ao_cea') ) CALL iom_put( 'snow_ao_cea' , sprecip(:,:) * ( 1._wp - zsnw(:,:) ) ) ! Snow over ice-free ocean (cell average)
1886	IF( iom_use('snow_ai_cea') ) CALL iom_put( 'snow_ai_cea' , sprecip(:,:) * zsnw(:,:) ) ! Snow over sea-ice (cell average)
1887	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)
1888	IF( iom_use('evap_ao_cea') ) CALL iom_put( 'evap_ao_cea' , ( frcv(jpr_tevp)%z3(:,:,1) &
1889	& - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) ) * tmask(:,:,1) ) ! ice-free oce evap (cell average)
1890	! note: runoff output is done in sbcrnf (which includes icebergs too) and iceshelf output is done in sbcisf
1891	!
1892	! ! ========================= !
1893	SELECT CASE( TRIM( sn_rcv_qns%cldes ) ) ! non solar heat fluxes ! (qns)
1894	! ! ========================= !
1895	CASE( 'oce only' ) ! the required field is directly provided
1896	zqns_tot(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
1897	CASE( 'conservative' ) ! the required fields are directly provided
1898	zqns_tot(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
1899	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1900	zqns_ice(:,:,1:jpl) = frcv(jpr_qnsice)%z3(:,:,1:jpl)
1901	ELSE
1902	DO jl = 1, jpl
1903	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1) ! Set all category values equal
1904	END DO
1905	ENDIF
1906	CASE( 'oce and ice' ) ! the total flux is computed from ocean and ice fluxes
1907	zqns_tot(:,:) = ziceld(:,:) * frcv(jpr_qnsoce)%z3(:,:,1)
1908	IF ( TRIM(sn_rcv_qns%clcat) == 'yes' ) THEN
1909	DO jl=1,jpl
1910	zqns_tot(:,: ) = zqns_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qnsice)%z3(:,:,jl)
1911	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,jl)
1912	ENDDO
1913	ELSE
1914	qns_tot(:,:) = qns_tot(:,:) + picefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1915	DO jl = 1, jpl
1916	zqns_tot(:,: ) = zqns_tot(:,:) + picefr(:,:) * frcv(jpr_qnsice)%z3(:,:,1)
1917	zqns_ice(:,:,jl) = frcv(jpr_qnsice)%z3(:,:,1)
1918	END DO
1919	ENDIF
1920	CASE( 'mixed oce-ice' ) ! the ice flux is cumputed from the total flux, the SST and ice informations
1921	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
1922	zqns_tot(:,: ) = frcv(jpr_qnsmix)%z3(:,:,1)
1923	zqns_ice(:,:,1) = frcv(jpr_qnsmix)%z3(:,:,1) &
1924	& + frcv(jpr_dqnsdt)%z3(:,:,1) * ( pist(:,:,1) - ( (rt0 + psst(:,: ) ) * ziceld(:,:) &
1925	& + pist(:,:,1) * picefr(:,:) ) )
1926	END SELECT
1927	!
1928	! --- calving (removed from qns_tot) --- !
1929	IF( srcv(jpr_cal)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_cal)%z3(:,:,1) * rLfus ! remove latent heat of calving
1930	! we suppose it melts at 0deg, though it should be temp. of surrounding ocean
1931	! --- iceberg (removed from qns_tot) --- !
1932	IF( srcv(jpr_icb)%laction ) zqns_tot(:,:) = zqns_tot(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove latent heat of iceberg melting
1933
1934	#if defined key_si3
1935	! --- non solar flux over ocean --- !
1936	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
1937	zqns_oce = 0._wp
1938	WHERE( ziceld /= 0._wp ) zqns_oce(:,:) = ( zqns_tot(:,:) - SUM( a_i * zqns_ice, dim=3 ) ) / ziceld(:,:)
1939
1940	! Heat content per unit mass of snow (J/kg)
1941	WHERE( SUM( a_i, dim=3 ) > 1.e-10 ) ; zcptsnw(:,:) = rcpi * SUM( (tn_ice - rt0) * a_i, dim=3 ) / SUM( a_i, dim=3 )
1942	ELSEWHERE ; zcptsnw(:,:) = zcptn(:,:)
1943	ENDWHERE
1944	! Heat content per unit mass of rain (J/kg)
1945	zcptrain(:,:) = rcp * ( SUM( (tn_ice(:,:,:) - rt0) * a_i(:,:,:), dim=3 ) + sst_m(:,:) * ziceld(:,:) )
1946
1947	! --- enthalpy of snow precip over ice in J/m3 (to be used in 1D-thermo) --- !
1948	zqprec_ice(:,:) = rhos * ( zcptsnw(:,:) - rLfus )
1949
1950	! --- heat content of evap over ice in W/m2 (to be used in 1D-thermo) --- !
1951	DO jl = 1, jpl
1952	zqevap_ice(:,:,jl) = 0._wp ! should be -evap * ( ( Tice - rt0 ) * rcpi ) but atm. does not take it into account
1953	END DO
1954
1955	! --- heat flux associated with emp (W/m2) --- !
1956	zqemp_oce(:,:) = - zevap_oce(:,:) * zcptn (:,:) & ! evap
1957	& + ( ztprecip(:,:) - zsprecip(:,:) ) * zcptrain(:,:) & ! liquid precip
1958	& + zsprecip(:,:) * ( 1._wp - zsnw ) * ( zcptsnw (:,:) - rLfus ) ! solid precip over ocean + snow melting
1959	zqemp_ice(:,:) = zsprecip(:,:) * zsnw * ( zcptsnw (:,:) - rLfus ) ! solid precip over ice (qevap_ice=0 since atm. does not take it into account)
1960	!! zqemp_ice(:,:) = - frcv(jpr_ievp)%z3(:,:,1) * picefr(:,:) * zcptsnw (:,:) & ! ice evap
1961	!! & + zsprecip(:,:) * zsnw * zqprec_ice(:,:) * r1_rhos ! solid precip over ice
1962
1963	! --- total non solar flux (including evap/precip) --- !
1964	zqns_tot(:,:) = zqns_tot(:,:) + zqemp_ice(:,:) + zqemp_oce(:,:)
1965
1966	! --- in case both coupled/forced are active, we must mix values --- !
1967	IF( ln_mixcpl ) THEN
1968	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
1969	qns_oce(:,:) = qns_oce(:,:) * xcplmask(:,:,0) + zqns_oce(:,:)* zmsk(:,:)
1970	DO jl=1,jpl
1971	qns_ice (:,:,jl) = qns_ice (:,:,jl) * xcplmask(:,:,0) + zqns_ice (:,:,jl)* zmsk(:,:)
1972	qevap_ice(:,:,jl) = qevap_ice(:,:,jl) * xcplmask(:,:,0) + zqevap_ice(:,:,jl)* zmsk(:,:)
1973	ENDDO
1974	qprec_ice(:,:) = qprec_ice(:,:) * xcplmask(:,:,0) + zqprec_ice(:,:)* zmsk(:,:)
1975	qemp_oce (:,:) = qemp_oce(:,:) * xcplmask(:,:,0) + zqemp_oce(:,:)* zmsk(:,:)
1976	qemp_ice (:,:) = qemp_ice(:,:) * xcplmask(:,:,0) + zqemp_ice(:,:)* zmsk(:,:)
1977	ELSE
1978	qns_tot (:,: ) = zqns_tot (:,: )
1979	qns_oce (:,: ) = zqns_oce (:,: )
1980	qns_ice (:,:,:) = zqns_ice (:,:,:)
1981	qevap_ice(:,:,:) = zqevap_ice(:,:,:)
1982	qprec_ice(:,: ) = zqprec_ice(:,: )
1983	qemp_oce (:,: ) = zqemp_oce (:,: )
1984	qemp_ice (:,: ) = zqemp_ice (:,: )
1985	ENDIF
1986
1987	#else
1988	zcptsnw (:,:) = zcptn(:,:)
1989	zcptrain(:,:) = zcptn(:,:)
1990
1991	! clem: this formulation is certainly wrong... but better than it was...
1992	zqns_tot(:,:) = zqns_tot(:,:) & ! zqns_tot update over free ocean with:
1993	& - ( ziceld(:,:) * zsprecip(:,:) * rLfus ) & ! remove the latent heat flux of solid precip. melting
1994	& - ( zemp_tot(:,:) & ! remove the heat content of mass flux (assumed to be at SST)
1995	& - zemp_ice(:,:) ) * zcptn(:,:)
1996
1997	IF( ln_mixcpl ) THEN
1998	qns_tot(:,:) = qns(:,:) * ziceld(:,:) + SUM( qns_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
1999	qns_tot(:,:) = qns_tot(:,:) * xcplmask(:,:,0) + zqns_tot(:,:)* zmsk(:,:)
2000	DO jl=1,jpl
2001	qns_ice(:,:,jl) = qns_ice(:,:,jl) * xcplmask(:,:,0) + zqns_ice(:,:,jl)* zmsk(:,:)
2002	ENDDO
2003	ELSE
2004	qns_tot(:,: ) = zqns_tot(:,: )
2005	qns_ice(:,:,:) = zqns_ice(:,:,:)
2006	ENDIF
2007
2008	#endif
2009	! outputs
2010	IF ( srcv(jpr_cal)%laction ) CALL iom_put('hflx_cal_cea' , - frcv(jpr_cal)%z3(:,:,1) * rLfus ) ! latent heat from calving
2011	IF ( srcv(jpr_icb)%laction ) CALL iom_put('hflx_icb_cea' , - frcv(jpr_icb)%z3(:,:,1) * rLfus ) ! latent heat from icebergs melting
2012	IF ( iom_use('hflx_rain_cea') ) CALL iom_put('hflx_rain_cea' , ( tprecip(:,:) - sprecip(:,:) ) * zcptrain(:,:) ) ! heat flux from rain (cell average)
2013	IF ( iom_use('hflx_evap_cea') ) CALL iom_put('hflx_evap_cea' , ( frcv(jpr_tevp)%z3(:,:,1) - frcv(jpr_ievp)%z3(:,:,1) &
2014	& * picefr(:,:) ) * zcptn(:,:) * tmask(:,:,1) ) ! heat flux from evap (cell average)
2015	IF ( iom_use('hflx_snow_cea') ) CALL iom_put('hflx_snow_cea' , sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) ) ! heat flux from snow (cell average)
2016	IF ( iom_use('hflx_snow_ao_cea') ) CALL iom_put('hflx_snow_ao_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) &
2017	& * ( 1._wp - zsnw(:,:) ) ) ! heat flux from snow (over ocean)
2018	IF ( iom_use('hflx_snow_ai_cea') ) CALL iom_put('hflx_snow_ai_cea', sprecip(:,:) * ( zcptsnw(:,:) - rLfus ) &
2019	& * zsnw(:,:) ) ! heat flux from snow (over ice)
2020	! note: hflx for runoff and iceshelf are done in sbcrnf and sbcisf resp.
2021	!
2022	! ! ========================= !
2023	SELECT CASE( TRIM( sn_rcv_qsr%cldes ) ) ! solar heat fluxes ! (qsr)
2024	! ! ========================= !
2025	CASE( 'oce only' )
2026	zqsr_tot(:,: ) = MAX( 0._wp , frcv(jpr_qsroce)%z3(:,:,1) )
2027	CASE( 'conservative' )
2028	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
2029	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2030	zqsr_ice(:,:,1:jpl) = frcv(jpr_qsrice)%z3(:,:,1:jpl)
2031	ELSE
2032	! Set all category values equal for the moment
2033	DO jl = 1, jpl
2034	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
2035	END DO
2036	ENDIF
2037	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
2038	zqsr_ice(:,:,1) = frcv(jpr_qsrice)%z3(:,:,1)
2039	CASE( 'oce and ice' )
2040	zqsr_tot(:,: ) = ziceld(:,:) * frcv(jpr_qsroce)%z3(:,:,1)
2041	IF ( TRIM(sn_rcv_qsr%clcat) == 'yes' ) THEN
2042	DO jl = 1, jpl
2043	zqsr_tot(:,: ) = zqsr_tot(:,:) + a_i(:,:,jl) * frcv(jpr_qsrice)%z3(:,:,jl)
2044	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,jl)
2045	END DO
2046	ELSE
2047	qsr_tot(:,: ) = qsr_tot(:,:) + picefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
2048	DO jl = 1, jpl
2049	zqsr_tot(:,: ) = zqsr_tot(:,:) + picefr(:,:) * frcv(jpr_qsrice)%z3(:,:,1)
2050	zqsr_ice(:,:,jl) = frcv(jpr_qsrice)%z3(:,:,1)
2051	END DO
2052	ENDIF
2053	CASE( 'mixed oce-ice' )
2054	zqsr_tot(:,: ) = frcv(jpr_qsrmix)%z3(:,:,1)
2055	! NEED TO SORT OUT HOW THIS SHOULD WORK IN THE MULTI-CATEGORY CASE - CURRENTLY NOT ALLOWED WHEN INTERFACE INITIALISED
2056	! Create solar heat flux over ice using incoming solar heat flux and albedos
2057	! ( see OASIS3 user guide, 5th edition, p39 )
2058	zqsr_ice(:,:,1) = frcv(jpr_qsrmix)%z3(:,:,1) * ( 1.- palbi(:,:,1) ) &
2059	& / ( 1.- ( alb_oce_mix(:,: ) * ziceld(:,:) &
2060	& + palbi (:,:,1) * picefr(:,:) ) )
2061	CASE( 'none' ) ! Not available as for now: needs additional coding
2062	! ! since fields received, here zqsr_tot, are not defined with none option
2063	CALL ctl_stop( 'STOP', 'sbccpl/sbc_cpl_ice_flx: some fields are not defined. Change sn_rcv_qsr value in namelist namsbc_cpl' )
2064	END SELECT
2065	IF( ln_dm2dc .AND. ln_cpl ) THEN ! modify qsr to include the diurnal cycle
2066	zqsr_tot(:,: ) = sbc_dcy( zqsr_tot(:,: ) )
2067	DO jl = 1, jpl
2068	zqsr_ice(:,:,jl) = sbc_dcy( zqsr_ice(:,:,jl) )
2069	END DO
2070	ENDIF
2071
2072	#if defined key_si3
2073	! --- solar flux over ocean --- !
2074	! note: ziceld cannot be = 0 since we limit the ice concentration to amax
2075	zqsr_oce = 0._wp
2076	WHERE( ziceld /= 0._wp ) zqsr_oce(:,:) = ( zqsr_tot(:,:) - SUM( a_i * zqsr_ice, dim=3 ) ) / ziceld(:,:)
2077
2078	IF( ln_mixcpl ) THEN ; qsr_oce(:,:) = qsr_oce(:,:) * xcplmask(:,:,0) + zqsr_oce(:,:)* zmsk(:,:)
2079	ELSE ; qsr_oce(:,:) = zqsr_oce(:,:) ; ENDIF
2080	#endif
2081
2082	IF( ln_mixcpl ) THEN
2083	qsr_tot(:,:) = qsr(:,:) * ziceld(:,:) + SUM( qsr_ice(:,:,:) * a_i(:,:,:), dim=3 ) ! total flux from blk
2084	qsr_tot(:,:) = qsr_tot(:,:) * xcplmask(:,:,0) + zqsr_tot(:,:)* zmsk(:,:)
2085	DO jl = 1, jpl
2086	qsr_ice(:,:,jl) = qsr_ice(:,:,jl) * xcplmask(:,:,0) + zqsr_ice(:,:,jl)* zmsk(:,:)
2087	END DO
2088	ELSE
2089	qsr_tot(:,: ) = zqsr_tot(:,: )
2090	qsr_ice(:,:,:) = zqsr_ice(:,:,:)
2091	ENDIF
2092
2093	! ! ========================= !
2094	SELECT CASE( TRIM( sn_rcv_dqnsdt%cldes ) ) ! d(qns)/dt !
2095	! ! ========================= !
2096	CASE ('coupled')
2097	IF ( TRIM(sn_rcv_dqnsdt%clcat) == 'yes' ) THEN
2098	zdqns_ice(:,:,1:jpl) = frcv(jpr_dqnsdt)%z3(:,:,1:jpl)
2099	ELSE
2100	! Set all category values equal for the moment
2101	DO jl=1,jpl
2102	zdqns_ice(:,:,jl) = frcv(jpr_dqnsdt)%z3(:,:,1)
2103	ENDDO
2104	ENDIF
2105	END SELECT
2106
2107	IF( ln_mixcpl ) THEN
2108	DO jl=1,jpl
2109	dqns_ice(:,:,jl) = dqns_ice(:,:,jl) * xcplmask(:,:,0) + zdqns_ice(:,:,jl) * zmsk(:,:)
2110	ENDDO
2111	ELSE
2112	dqns_ice(:,:,:) = zdqns_ice(:,:,:)
2113	ENDIF
2114
2115	#if defined key_si3
2116	! ! ========================= !
2117	SELECT CASE( TRIM( sn_rcv_iceflx%cldes ) ) ! ice topmelt and botmelt !
2118	! ! ========================= !
2119	CASE ('coupled')
2120	qml_ice(:,:,:) = frcv(jpr_topm)%z3(:,:,:)
2121	qcn_ice(:,:,:) = frcv(jpr_botm)%z3(:,:,:)
2122	END SELECT
2123	!
2124	! ! ========================= !
2125	! ! Transmitted Qsr ! [W/m2]
2126	! ! ========================= !
2127	IF( .NOT.ln_cndflx ) THEN !== No conduction flux as surface forcing ==!
2128	!
2129	! ! ===> used prescribed cloud fraction representative for polar oceans in summer (0.81)
2130	ztri = 0.18 * ( 1.0 - cldf_ice ) + 0.35 * cldf_ice ! surface transmission parameter (Grenfell Maykut 77)
2131	!
2132	qtr_ice_top(:,:,:) = ztri * qsr_ice(:,:,:)
2133	WHERE( phs(:,:,:) >= 0.0_wp ) qtr_ice_top(:,:,:) = 0._wp ! snow fully opaque
2134	WHERE( phi(:,:,:) <= 0.1_wp ) qtr_ice_top(:,:,:) = qsr_ice(:,:,:) ! thin ice transmits all solar radiation
2135	!
2136	ELSEIF( ln_cndflx .AND. .NOT.ln_cndemulate ) THEN !== conduction flux as surface forcing ==!
2137	!
2138	! ! ===> here we must receive the qtr_ice_top array from the coupler
2139	! for now just assume zero (fully opaque ice)
2140	qtr_ice_top(:,:,:) = 0._wp
2141	!
2142	ENDIF
2143	!
2144	#endif
2145	!
2146	END SUBROUTINE sbc_cpl_ice_flx
2147
2148
2149	SUBROUTINE sbc_cpl_snd( kt )
2150	!!----------------------------------------------------------------------
2151	!! * ROUTINE sbc_cpl_snd *
2152	!!
2153	!! ** Purpose : provide the ocean-ice informations to the atmosphere
2154	!!
2155	!! ** Method : send to the atmosphere through a call to cpl_snd
2156	!! all the needed fields (as defined in sbc_cpl_init)
2157	!!----------------------------------------------------------------------
2158	INTEGER, INTENT(in) :: kt
2159	!
2160	INTEGER :: ji, jj, jl ! dummy loop indices
2161	INTEGER :: ikchoix
2162	INTEGER :: isec, info ! local integer
2163	REAL(wp) :: zumax, zvmax
2164	REAL(wp), DIMENSION(jpi,jpj) :: zfr_l, ztmp1, ztmp2, zotx1, zoty1, zotz1, zitx1, zity1, zitz1
2165	REAL(wp), DIMENSION(jpi,jpj,jpl) :: ztmp3, ztmp4
2166	!!----------------------------------------------------------------------
2167	!
2168	isec = ( kt - nit000 ) * NINT( rdt ) ! date of exchanges
2169
2170	zfr_l(:,:) = 1.- fr_i(:,:)
2171	! ! ------------------------- !
2172	! ! Surface temperature ! in Kelvin
2173	! ! ------------------------- !
2174	IF( ssnd(jps_toce)%laction .OR. ssnd(jps_tice)%laction .OR. ssnd(jps_tmix)%laction ) THEN
2175
2176	IF ( nn_components == jp_iam_opa ) THEN
2177	ztmp1(:,:) = tsn(:,:,1,jp_tem) ! send temperature as it is (potential or conservative) -> use of l_useCT on the received part
2178	ELSE
2179	! we must send the surface potential temperature
2180	IF( l_useCT ) THEN ; ztmp1(:,:) = eos_pt_from_ct( tsn(:,:,1,jp_tem), tsn(:,:,1,jp_sal) )
2181	ELSE ; ztmp1(:,:) = tsn(:,:,1,jp_tem)
2182	ENDIF
2183	!
2184	SELECT CASE( sn_snd_temp%cldes)
2185	CASE( 'oce only' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2186	CASE( 'oce and ice' ) ; ztmp1(:,:) = ztmp1(:,:) + rt0
2187	SELECT CASE( sn_snd_temp%clcat )
2188	CASE( 'yes' )
2189	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl)
2190	CASE( 'no' )
2191	WHERE( SUM( a_i, dim=3 ) /= 0. )
2192	ztmp3(:,:,1) = SUM( tn_ice * a_i, dim=3 ) / SUM( a_i, dim=3 )
2193	ELSEWHERE
2194	ztmp3(:,:,1) = rt0
2195	END WHERE
2196	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2197	END SELECT
2198	CASE( 'weighted oce and ice' ) ; ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2199	SELECT CASE( sn_snd_temp%clcat )
2200	CASE( 'yes' )
2201	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2202	CASE( 'no' )
2203	ztmp3(:,:,:) = 0.0
2204	DO jl=1,jpl
2205	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2206	ENDDO
2207	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2208	END SELECT
2209	CASE( 'oce and weighted ice') ; ztmp1(:,:) = tsn(:,:,1,jp_tem) + rt0
2210	SELECT CASE( sn_snd_temp%clcat )
2211	CASE( 'yes' )
2212	ztmp3(:,:,1:jpl) = tn_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2213	CASE( 'no' )
2214	ztmp3(:,:,:) = 0.0
2215	DO jl=1,jpl
2216	ztmp3(:,:,1) = ztmp3(:,:,1) + tn_ice(:,:,jl) * a_i(:,:,jl)
2217	ENDDO
2218	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%clcat' )
2219	END SELECT
2220	CASE( 'mixed oce-ice' )
2221	ztmp1(:,:) = ( ztmp1(:,:) + rt0 ) * zfr_l(:,:)
2222	DO jl=1,jpl
2223	ztmp1(:,:) = ztmp1(:,:) + tn_ice(:,:,jl) * a_i(:,:,jl)
2224	ENDDO
2225	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_temp%cldes' )
2226	END SELECT
2227	ENDIF
2228	IF( ssnd(jps_toce)%laction ) CALL cpl_snd( jps_toce, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2229	IF( ssnd(jps_tice)%laction ) CALL cpl_snd( jps_tice, isec, ztmp3, info )
2230	IF( ssnd(jps_tmix)%laction ) CALL cpl_snd( jps_tmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2231	ENDIF
2232	!
2233	! ! ------------------------- !
2234	! ! 1st layer ice/snow temp. !
2235	! ! ------------------------- !
2236	#if defined key_si3
2237	! needed by Met Office
2238	IF( ssnd(jps_ttilyr)%laction) THEN
2239	SELECT CASE( sn_snd_ttilyr%cldes)
2240	CASE ('weighted ice')
2241	ztmp3(:,:,1:jpl) = t1_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2242	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ttilyr%cldes' )
2243	END SELECT
2244	IF( ssnd(jps_ttilyr)%laction ) CALL cpl_snd( jps_ttilyr, isec, ztmp3, info )
2245	ENDIF
2246	#endif
2247	! ! ------------------------- !
2248	! ! Albedo !
2249	! ! ------------------------- !
2250	IF( ssnd(jps_albice)%laction ) THEN ! ice
2251	SELECT CASE( sn_snd_alb%cldes )
2252	CASE( 'ice' )
2253	SELECT CASE( sn_snd_alb%clcat )
2254	CASE( 'yes' )
2255	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl)
2256	CASE( 'no' )
2257	WHERE( SUM( a_i, dim=3 ) /= 0. )
2258	ztmp1(:,:) = SUM( alb_ice (:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 ) / SUM( a_i(:,:,1:jpl), dim=3 )
2259	ELSEWHERE
2260	ztmp1(:,:) = alb_oce_mix(:,:)
2261	END WHERE
2262	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%clcat' )
2263	END SELECT
2264	CASE( 'weighted ice' ) ;
2265	SELECT CASE( sn_snd_alb%clcat )
2266	CASE( 'yes' )
2267	ztmp3(:,:,1:jpl) = alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2268	CASE( 'no' )
2269	WHERE( fr_i (:,:) > 0. )
2270	ztmp1(:,:) = SUM ( alb_ice(:,:,1:jpl) * a_i(:,:,1:jpl), dim=3 )
2271	ELSEWHERE
2272	ztmp1(:,:) = 0.
2273	END WHERE
2274	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_ice%clcat' )
2275	END SELECT
2276	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_alb%cldes' )
2277	END SELECT
2278
2279	SELECT CASE( sn_snd_alb%clcat )
2280	CASE( 'yes' )
2281	CALL cpl_snd( jps_albice, isec, ztmp3, info ) !-> MV this has never been checked in coupled mode
2282	CASE( 'no' )
2283	CALL cpl_snd( jps_albice, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2284	END SELECT
2285	ENDIF
2286
2287	IF( ssnd(jps_albmix)%laction ) THEN ! mixed ice-ocean
2288	ztmp1(:,:) = alb_oce_mix(:,:) * zfr_l(:,:)
2289	DO jl = 1, jpl
2290	ztmp1(:,:) = ztmp1(:,:) + alb_ice(:,:,jl) * a_i(:,:,jl)
2291	END DO
2292	CALL cpl_snd( jps_albmix, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2293	ENDIF
2294	! ! ------------------------- !
2295	! ! Ice fraction & Thickness !
2296	! ! ------------------------- !
2297	! Send ice fraction field to atmosphere
2298	IF( ssnd(jps_fice)%laction ) THEN
2299	SELECT CASE( sn_snd_thick%clcat )
2300	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2301	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2302	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2303	END SELECT
2304	IF( ssnd(jps_fice)%laction ) CALL cpl_snd( jps_fice, isec, ztmp3, info )
2305	ENDIF
2306
2307	IF( ssnd(jps_fice1)%laction ) THEN
2308	SELECT CASE( sn_snd_thick1%clcat )
2309	CASE( 'yes' ) ; ztmp3(:,:,1:jpl) = a_i(:,:,1:jpl)
2310	CASE( 'no' ) ; ztmp3(:,:,1 ) = fr_i(:,: )
2311	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick1%clcat' )
2312	END SELECT
2313	CALL cpl_snd( jps_fice1, isec, ztmp3, info )
2314	ENDIF
2315
2316	! Send ice fraction field to OPA (sent by SAS in SAS-OPA coupling)
2317	IF( ssnd(jps_fice2)%laction ) THEN
2318	ztmp3(:,:,1) = fr_i(:,:)
2319	IF( ssnd(jps_fice2)%laction ) CALL cpl_snd( jps_fice2, isec, ztmp3, info )
2320	ENDIF
2321
2322	! Send ice and snow thickness field
2323	IF( ssnd(jps_hice)%laction .OR. ssnd(jps_hsnw)%laction ) THEN
2324	SELECT CASE( sn_snd_thick%cldes)
2325	CASE( 'none' ) ! nothing to do
2326	CASE( 'weighted ice and snow' )
2327	SELECT CASE( sn_snd_thick%clcat )
2328	CASE( 'yes' )
2329	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl) * a_i(:,:,1:jpl)
2330	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl) * a_i(:,:,1:jpl)
2331	CASE( 'no' )
2332	ztmp3(:,:,:) = 0.0 ; ztmp4(:,:,:) = 0.0
2333	DO jl=1,jpl
2334	ztmp3(:,:,1) = ztmp3(:,:,1) + h_i(:,:,jl) * a_i(:,:,jl)
2335	ztmp4(:,:,1) = ztmp4(:,:,1) + h_s(:,:,jl) * a_i(:,:,jl)
2336	ENDDO
2337	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2338	END SELECT
2339	CASE( 'weighted ice' )
2340	SELECT CASE( sn_snd_thick%clcat )
2341	CASE( 'yes' )
2342	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl) * a_i(:,:,1:jpl)
2343	CASE( 'no' )
2344	ztmp3(:,:,:) = 0.0
2345	DO jl=1,jpl
2346	ztmp3(:,:,1) = ztmp3(:,:,1) + h_i(:,:,jl) * a_i(:,:,jl)
2347	ENDDO
2348	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2349	END SELECT
2350	CASE( 'ice and snow' )
2351	SELECT CASE( sn_snd_thick%clcat )
2352	CASE( 'yes' )
2353	ztmp3(:,:,1:jpl) = h_i(:,:,1:jpl)
2354	ztmp4(:,:,1:jpl) = h_s(:,:,1:jpl)
2355	CASE( 'no' )
2356	WHERE( SUM( a_i, dim=3 ) /= 0. )
2357	ztmp3(:,:,1) = SUM( h_i * a_i, dim=3 ) / SUM( a_i, dim=3 )
2358	ztmp4(:,:,1) = SUM( h_s * a_i, dim=3 ) / SUM( a_i, dim=3 )
2359	ELSEWHERE
2360	ztmp3(:,:,1) = 0.
2361	ztmp4(:,:,1) = 0.
2362	END WHERE
2363	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%clcat' )
2364	END SELECT
2365	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_thick%cldes' )
2366	END SELECT
2367	IF( ssnd(jps_hice)%laction ) CALL cpl_snd( jps_hice, isec, ztmp3, info )
2368	IF( ssnd(jps_hsnw)%laction ) CALL cpl_snd( jps_hsnw, isec, ztmp4, info )
2369	ENDIF
2370
2371	#if defined key_si3
2372	! ! ------------------------- !
2373	! ! Ice melt ponds !
2374	! ! ------------------------- !
2375	! needed by Met Office
2376	IF( ssnd(jps_a_p)%laction .OR. ssnd(jps_ht_p)%laction ) THEN
2377	SELECT CASE( sn_snd_mpnd%cldes)
2378	CASE( 'ice only' )
2379	SELECT CASE( sn_snd_mpnd%clcat )
2380	CASE( 'yes' )
2381	ztmp3(:,:,1:jpl) = a_ip(:,:,1:jpl)
2382	ztmp4(:,:,1:jpl) = v_ip(:,:,1:jpl)
2383	CASE( 'no' )
2384	ztmp3(:,:,:) = 0.0
2385	ztmp4(:,:,:) = 0.0
2386	DO jl=1,jpl
2387	ztmp3(:,:,1) = ztmp3(:,:,1) + a_ip(:,:,jpl)
2388	ztmp4(:,:,1) = ztmp4(:,:,1) + v_ip(:,:,jpl)
2389	ENDDO
2390	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%clcat' )
2391	END SELECT
2392	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_mpnd%cldes' )
2393	END SELECT
2394	IF( ssnd(jps_a_p)%laction ) CALL cpl_snd( jps_a_p , isec, ztmp3, info )
2395	IF( ssnd(jps_ht_p)%laction ) CALL cpl_snd( jps_ht_p, isec, ztmp4, info )
2396	ENDIF
2397	!
2398	! ! ------------------------- !
2399	! ! Ice conductivity !
2400	! ! ------------------------- !
2401	! needed by Met Office
2402	IF( ssnd(jps_kice)%laction ) THEN
2403	SELECT CASE( sn_snd_cond%cldes)
2404	CASE( 'weighted ice' )
2405	SELECT CASE( sn_snd_cond%clcat )
2406	CASE( 'yes' )
2407	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl) * a_i(:,:,1:jpl)
2408	CASE( 'no' )
2409	ztmp3(:,:,:) = 0.0
2410	DO jl=1,jpl
2411	ztmp3(:,:,1) = ztmp3(:,:,1) + cnd_ice(:,:,jl) * a_i(:,:,jl)
2412	ENDDO
2413	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%clcat' )
2414	END SELECT
2415	CASE( 'ice only' )
2416	ztmp3(:,:,1:jpl) = cnd_ice(:,:,1:jpl)
2417	CASE default ; CALL ctl_stop( 'sbc_cpl_snd: wrong definition of sn_snd_cond%cldes' )
2418	END SELECT
2419	IF( ssnd(jps_kice)%laction ) CALL cpl_snd( jps_kice, isec, ztmp3, info )
2420	ENDIF
2421	#endif
2422
2423	! ! ------------------------- !
2424	! ! CO2 flux from PISCES !
2425	! ! ------------------------- !
2426	IF( ssnd(jps_co2)%laction .AND. l_co2cpl ) CALL cpl_snd( jps_co2, isec, RESHAPE ( oce_co2, (/jpi,jpj,1/) ) , info )
2427	!
2428	! ! ------------------------- !
2429	IF( ssnd(jps_ocx1)%laction ) THEN ! Surface current !
2430	! ! ------------------------- !
2431	!
2432	! j+1 j -----V---F
2433	! surface velocity always sent from T point ! \|
2434	! [except for HadGEM3] j \| T U
2435	! \| \|
2436	! j j-1 -I-------\|
2437	! (for I) \| \|
2438	! i-1 i i
2439	! i i+1 (for I)
2440	IF( nn_components == jp_iam_opa ) THEN
2441	zotx1(:,:) = un(:,:,1)
2442	zoty1(:,:) = vn(:,:,1)
2443	ELSE
2444	SELECT CASE( TRIM( sn_snd_crt%cldes ) )
2445	CASE( 'oce only' ) ! C-grid ==> T
2446	IF ( TRIM( sn_snd_crt%clvgrd ) == 'T' ) THEN
2447	DO jj = 2, jpjm1
2448	DO ji = fs_2, fs_jpim1 ! vector opt.
2449	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
2450	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji ,jj-1,1) )
2451	END DO
2452	END DO
2453	ELSE
2454	! Temporarily Changed for UKV
2455	DO jj = 2, jpjm1
2456	DO ji = 2, jpim1
2457	zotx1(ji,jj) = un(ji,jj,1)
2458	zoty1(ji,jj) = vn(ji,jj,1)
2459	END DO
2460	END DO
2461	ENDIF
2462	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2463	DO jj = 2, jpjm1
2464	DO ji = fs_2, fs_jpim1 ! vector opt.
2465	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
2466	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
2467	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2468	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2469	END DO
2470	END DO
2471	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1., zity1, 'T', -1. )
2472	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2473	DO jj = 2, jpjm1
2474	DO ji = fs_2, fs_jpim1 ! vector opt.
2475	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
2476	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2477	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
2478	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2479	END DO
2480	END DO
2481	END SELECT
2482	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocx1)%clgrid, -1., zoty1, ssnd(jps_ocy1)%clgrid, -1. )
2483	!
2484	ENDIF
2485	!
2486	!
2487	IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2488	! ! Ocean component
2489	IF ( TRIM( sn_snd_crt%clvgrd ) == 'T' ) THEN
2490	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2491	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2492	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2493	zoty1(:,:) = ztmp2(:,:)
2494	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2495	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2496	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2497	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2498	zity1(:,:) = ztmp2(:,:)
2499	ENDIF
2500	ELSE
2501	! Temporary code for HadGEM3 - will be removed eventually.
2502	! Only applies when we want uvel on U grid and vvel on V grid
2503	! Rotate U and V onto geographic grid before sending.
2504
2505	DO jj=2,jpjm1
2506	DO ji=2,jpim1
2507	ztmp1(ji,jj)=0.25*vmask(ji,jj,1) &
2508	*(zotx1(ji,jj)+zotx1(ji-1,jj) &
2509	+zotx1(ji,jj+1)+zotx1(ji-1,jj+1))
2510	ztmp2(ji,jj)=0.25*umask(ji,jj,1) &
2511	*(zoty1(ji,jj)+zoty1(ji+1,jj) &
2512	+zoty1(ji,jj-1)+zoty1(ji+1,jj-1))
2513	ENDDO
2514	ENDDO
2515
2516	! Ensure any N fold and wrap columns are updated
2517	CALL lbc_lnk('zotx1', ztmp1, 'V', -1.0)
2518	CALL lbc_lnk('zoty1', ztmp2, 'U', -1.0)
2519
2520	ikchoix = -1
2521	CALL repcmo (zotx1,ztmp2,ztmp1,zoty1,zotx1,zoty1,ikchoix)
2522	ENDIF
2523	ENDIF
2524	!
2525	! spherical coordinates to cartesian -> 2 components to 3 components
2526	IF( TRIM( sn_snd_crt%clvref ) == 'cartesian' ) THEN
2527	ztmp1(:,:) = zotx1(:,:) ! ocean currents
2528	ztmp2(:,:) = zoty1(:,:)
2529	CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2530	!
2531	IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2532	ztmp1(:,:) = zitx1(:,:)
2533	ztmp1(:,:) = zity1(:,:)
2534	CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2535	ENDIF
2536	ENDIF
2537	!
2538	IF( ssnd(jps_ocx1)%laction ) CALL cpl_snd( jps_ocx1, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2539	IF( ssnd(jps_ocy1)%laction ) CALL cpl_snd( jps_ocy1, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2540	IF( ssnd(jps_ocz1)%laction ) CALL cpl_snd( jps_ocz1, isec, RESHAPE ( zotz1, (/jpi,jpj,1/) ), info ) ! ocean z current 1st grid
2541	!
2542	IF( ssnd(jps_ivx1)%laction ) CALL cpl_snd( jps_ivx1, isec, RESHAPE ( zitx1, (/jpi,jpj,1/) ), info ) ! ice x current 1st grid
2543	IF( ssnd(jps_ivy1)%laction ) CALL cpl_snd( jps_ivy1, isec, RESHAPE ( zity1, (/jpi,jpj,1/) ), info ) ! ice y current 1st grid
2544	IF( ssnd(jps_ivz1)%laction ) CALL cpl_snd( jps_ivz1, isec, RESHAPE ( zitz1, (/jpi,jpj,1/) ), info ) ! ice z current 1st grid
2545	!
2546	ENDIF
2547	!
2548	! ! ------------------------- !
2549	! ! Surface current to waves !
2550	! ! ------------------------- !
2551	IF( ssnd(jps_ocxw)%laction .OR. ssnd(jps_ocyw)%laction ) THEN
2552	!
2553	! j+1 j -----V---F
2554	! surface velocity always sent from T point ! \|
2555	! j \| T U
2556	! \| \|
2557	! j j-1 -I-------\|
2558	! (for I) \| \|
2559	! i-1 i i
2560	! i i+1 (for I)
2561	SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
2562	CASE( 'oce only' ) ! C-grid ==> T
2563	DO jj = 2, jpjm1
2564	DO ji = fs_2, fs_jpim1 ! vector opt.
2565	zotx1(ji,jj) = 0.5 * ( un(ji,jj,1) + un(ji-1,jj ,1) )
2566	zoty1(ji,jj) = 0.5 * ( vn(ji,jj,1) + vn(ji , jj-1,1) )
2567	END DO
2568	END DO
2569	CASE( 'weighted oce and ice' ) ! Ocean and Ice on C-grid ==> T
2570	DO jj = 2, jpjm1
2571	DO ji = fs_2, fs_jpim1 ! vector opt.
2572	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj)
2573	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj)
2574	zitx1(ji,jj) = 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2575	zity1(ji,jj) = 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2576	END DO
2577	END DO
2578	CALL lbc_lnk_multi( 'sbccpl', zitx1, 'T', -1., zity1, 'T', -1. )
2579	CASE( 'mixed oce-ice' ) ! Ocean and Ice on C-grid ==> T
2580	DO jj = 2, jpjm1
2581	DO ji = fs_2, fs_jpim1 ! vector opt.
2582	zotx1(ji,jj) = 0.5 * ( un (ji,jj,1) + un (ji-1,jj ,1) ) * zfr_l(ji,jj) &
2583	& + 0.5 * ( u_ice(ji,jj ) + u_ice(ji-1,jj ) ) * fr_i(ji,jj)
2584	zoty1(ji,jj) = 0.5 * ( vn (ji,jj,1) + vn (ji ,jj-1,1) ) * zfr_l(ji,jj) &
2585	& + 0.5 * ( v_ice(ji,jj ) + v_ice(ji ,jj-1 ) ) * fr_i(ji,jj)
2586	END DO
2587	END DO
2588	END SELECT
2589	CALL lbc_lnk_multi( 'sbccpl', zotx1, ssnd(jps_ocxw)%clgrid, -1., zoty1, ssnd(jps_ocyw)%clgrid, -1. )
2590	!
2591	!
2592	IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) THEN ! Rotation of the components
2593	! ! Ocean component
2594	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2595	CALL rot_rep( zotx1, zoty1, ssnd(jps_ocxw)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2596	zotx1(:,:) = ztmp1(:,:) ! overwrite the components
2597	zoty1(:,:) = ztmp2(:,:)
2598	IF( ssnd(jps_ivx1)%laction ) THEN ! Ice component
2599	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->e', ztmp1 ) ! 1st component
2600	CALL rot_rep( zitx1, zity1, ssnd(jps_ivx1)%clgrid, 'ij->n', ztmp2 ) ! 2nd component
2601	zitx1(:,:) = ztmp1(:,:) ! overwrite the components
2602	zity1(:,:) = ztmp2(:,:)
2603	ENDIF
2604	ENDIF
2605	!
2606	! ! spherical coordinates to cartesian -> 2 components to 3 components
2607	! IF( TRIM( sn_snd_crtw%clvref ) == 'cartesian' ) THEN
2608	! ztmp1(:,:) = zotx1(:,:) ! ocean currents
2609	! ztmp2(:,:) = zoty1(:,:)
2610	! CALL oce2geo ( ztmp1, ztmp2, 'T', zotx1, zoty1, zotz1 )
2611	! !
2612	! IF( ssnd(jps_ivx1)%laction ) THEN ! ice velocities
2613	! ztmp1(:,:) = zitx1(:,:)
2614	! ztmp1(:,:) = zity1(:,:)
2615	! CALL oce2geo ( ztmp1, ztmp2, 'T', zitx1, zity1, zitz1 )
2616	! ENDIF
2617	! ENDIF
2618	!
2619	IF( ssnd(jps_ocxw)%laction ) CALL cpl_snd( jps_ocxw, isec, RESHAPE ( zotx1, (/jpi,jpj,1/) ), info ) ! ocean x current 1st grid
2620	IF( ssnd(jps_ocyw)%laction ) CALL cpl_snd( jps_ocyw, isec, RESHAPE ( zoty1, (/jpi,jpj,1/) ), info ) ! ocean y current 1st grid
2621	!
2622	ENDIF
2623	!
2624	IF( ssnd(jps_ficet)%laction ) THEN
2625	CALL cpl_snd( jps_ficet, isec, RESHAPE ( fr_i, (/jpi,jpj,1/) ), info )
2626	END IF
2627	! ! ------------------------- !
2628	! ! Water levels to waves !
2629	! ! ------------------------- !
2630	IF( ssnd(jps_wlev)%laction ) THEN
2631	IF( ln_apr_dyn ) THEN
2632	IF( kt /= nit000 ) THEN
2633	ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2634	ELSE
2635	ztmp1(:,:) = sshb(:,:)
2636	ENDIF
2637	ELSE
2638	ztmp1(:,:) = sshn(:,:)
2639	ENDIF
2640	CALL cpl_snd( jps_wlev , isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2641	END IF
2642	!
2643	! Fields sent by OPA to SAS when doing OPA<->SAS coupling
2644	! ! SSH
2645	IF( ssnd(jps_ssh )%laction ) THEN
2646	! ! removed inverse barometer ssh when Patm
2647	! forcing is used (for sea-ice dynamics)
2648	IF( ln_apr_dyn ) THEN ; ztmp1(:,:) = sshb(:,:) - 0.5 * ( ssh_ib(:,:) + ssh_ibb(:,:) )
2649	ELSE ; ztmp1(:,:) = sshn(:,:)
2650	ENDIF
2651	CALL cpl_snd( jps_ssh , isec, RESHAPE ( ztmp1 , (/jpi,jpj,1/) ), info )
2652
2653	ENDIF
2654	! ! SSS
2655	IF( ssnd(jps_soce )%laction ) THEN
2656	CALL cpl_snd( jps_soce , isec, RESHAPE ( tsn(:,:,1,jp_sal), (/jpi,jpj,1/) ), info )
2657	ENDIF
2658	! ! first T level thickness
2659	IF( ssnd(jps_e3t1st )%laction ) THEN
2660	CALL cpl_snd( jps_e3t1st, isec, RESHAPE ( e3t_n(:,:,1) , (/jpi,jpj,1/) ), info )
2661	ENDIF
2662	! ! Qsr fraction
2663	IF( ssnd(jps_fraqsr)%laction ) THEN
2664	CALL cpl_snd( jps_fraqsr, isec, RESHAPE ( fraqsr_1lev(:,:) , (/jpi,jpj,1/) ), info )
2665	ENDIF
2666	!
2667	! Fields sent by SAS to OPA when OASIS coupling
2668	! ! Solar heat flux
2669	IF( ssnd(jps_qsroce)%laction ) CALL cpl_snd( jps_qsroce, isec, RESHAPE ( qsr , (/jpi,jpj,1/) ), info )
2670	IF( ssnd(jps_qnsoce)%laction ) CALL cpl_snd( jps_qnsoce, isec, RESHAPE ( qns , (/jpi,jpj,1/) ), info )
2671	IF( ssnd(jps_oemp )%laction ) CALL cpl_snd( jps_oemp , isec, RESHAPE ( emp , (/jpi,jpj,1/) ), info )
2672	IF( ssnd(jps_sflx )%laction ) CALL cpl_snd( jps_sflx , isec, RESHAPE ( sfx , (/jpi,jpj,1/) ), info )
2673	IF( ssnd(jps_otx1 )%laction ) CALL cpl_snd( jps_otx1 , isec, RESHAPE ( utau, (/jpi,jpj,1/) ), info )
2674	IF( ssnd(jps_oty1 )%laction ) CALL cpl_snd( jps_oty1 , isec, RESHAPE ( vtau, (/jpi,jpj,1/) ), info )
2675	IF( ssnd(jps_rnf )%laction ) CALL cpl_snd( jps_rnf , isec, RESHAPE ( rnf , (/jpi,jpj,1/) ), info )
2676	IF( ssnd(jps_taum )%laction ) CALL cpl_snd( jps_taum , isec, RESHAPE ( taum, (/jpi,jpj,1/) ), info )
2677
2678	#if defined key_si3
2679	! ! ------------------------- !
2680	! ! Sea surface freezing temp !
2681	! ! ------------------------- !
2682	! needed by Met Office
2683	CALL eos_fzp(tsn(:,:,1,jp_sal), sstfrz)
2684	ztmp1(:,:) = sstfrz(:,:) + rt0
2685	IF( ssnd(jps_sstfrz)%laction ) CALL cpl_snd( jps_sstfrz, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info)
2686	#endif
2687
2688
2689	IF ( ssnd(jps_dummy_t)%laction ) THEN
2690	! RSRH Just set up some arbitrary test pattern for now
2691	DO jj = 1, jpj
2692	DO ji = 1, jpi
2693	ztmp1(ji,jj) = kt + (glamt(ji,jj) * gphit(ji,jj))
2694	ENDDO
2695	ENDDO
2696	CALL cpl_snd( jps_dummy_t, isec, RESHAPE ( ztmp1, (/jpi,jpj,1/) ), info )
2697	ENDIF
2698
2699	!
2700	END SUBROUTINE sbc_cpl_snd
2701
2702	!!======================================================================
2703	END MODULE sbccpl

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