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diaar5.F90 in trunk/NEMOGCM/NEMO/OPA_SRC/DIA – NEMO

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source: trunk/NEMOGCM/NEMO/OPA_SRC/DIA/diaar5.F90 @ 7698

Last change on this file since 7698 was 7698, checked in by mocavero, 7 years ago
update trunk with OpenMP parallelization
Property svn:keywords set to `Id`
File size: 19.6 KB

Rev	Line
[1756]	1	MODULE diaar5
	2	!!======================================================================
	3	!! * MODULE diaar5 *
	4	!! AR5 diagnostics
	5	!!======================================================================
[2528]	6	!! History : 3.2 ! 2009-11 (S. Masson) Original code
	7	!! 3.3 ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase + merge TRC-TRA
[1756]	8	!!----------------------------------------------------------------------
[2528]	9	!! dia_ar5 : AR5 diagnostics
	10	!! dia_ar5_init : initialisation of AR5 diagnostics
[1756]	11	!!----------------------------------------------------------------------
	12	USE oce ! ocean dynamics and active tracers
	13	USE dom_oce ! ocean space and time domain
[2528]	14	USE eosbn2 ! equation of state (eos_bn2 routine)
[1756]	15	USE lib_mpp ! distribued memory computing library
	16	USE iom ! I/O manager library
[3294]	17	USE timing ! preformance summary
	18	USE wrk_nemo ! working arrays
[5253]	19	USE fldread ! type FLD_N
	20	USE phycst ! physical constant
	21	USE in_out_manager ! I/O manager
[7646]	22	USE zdfddm
	23	USE zdf_oce
[1756]	24
	25	IMPLICIT NONE
	26	PRIVATE
	27
[2528]	28	PUBLIC dia_ar5 ! routine called in step.F90 module
[2715]	29	PUBLIC dia_ar5_alloc ! routine called in nemogcm.F90 module
[7646]	30	PUBLIC dia_ar5_hst ! heat/salt transport
[1756]	31
[2528]	32	REAL(wp) :: vol0 ! ocean volume (interior domain)
	33	REAL(wp) :: area_tot ! total ocean surface (interior domain)
[2715]	34	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,: ) :: area ! cell surface (interior domain)
	35	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,: ) :: thick0 ! ocean thickness (interior domain)
	36	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sn0 ! initial salinity
[7646]	37
	38	LOGICAL :: l_ar5
[1756]	39
[7646]	40	!! * Substitutions
	41	# include "zdfddm_substitute.h90"
	42	# include "vectopt_loop_substitute.h90"
[1756]	43	!!----------------------------------------------------------------------
[2528]	44	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
	45	!! $Id$
	46	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[1756]	47	!!----------------------------------------------------------------------
	48	CONTAINS
	49
[2715]	50	FUNCTION dia_ar5_alloc()
	51	!!----------------------------------------------------------------------
	52	!! * ROUTINE dia_ar5_alloc *
	53	!!----------------------------------------------------------------------
	54	INTEGER :: dia_ar5_alloc
	55	!!----------------------------------------------------------------------
	56	!
	57	ALLOCATE( area(jpi,jpj), thick0(jpi,jpj) , sn0(jpi,jpj,jpk) , STAT=dia_ar5_alloc )
	58	!
	59	IF( lk_mpp ) CALL mpp_sum ( dia_ar5_alloc )
	60	IF( dia_ar5_alloc /= 0 ) CALL ctl_warn('dia_ar5_alloc: failed to allocate arrays')
	61	!
	62	END FUNCTION dia_ar5_alloc
	63
	64
[1756]	65	SUBROUTINE dia_ar5( kt )
	66	!!----------------------------------------------------------------------
	67	!! * ROUTINE dia_ar5 *
	68	!!
[2528]	69	!! ** Purpose : compute and output some AR5 diagnostics
[1756]	70	!!----------------------------------------------------------------------
[2715]	71	!
[1756]	72	INTEGER, INTENT( in ) :: kt ! ocean time-step index
[2715]	73	!
[1756]	74	INTEGER :: ji, jj, jk ! dummy loop arguments
	75	REAL(wp) :: zvolssh, zvol, zssh_steric, zztmp, zarho, ztemp, zsal, zmass
[7646]	76	REAL(wp) :: zaw, zbw, zrw
[3294]	77	!
	78	REAL(wp), POINTER, DIMENSION(:,:) :: zarea_ssh , zbotpres ! 2D workspace
[7646]	79	REAL(wp), POINTER, DIMENSION(:,:) :: zpe ! 2D workspace
[3294]	80	REAL(wp), POINTER, DIMENSION(:,:,:) :: zrhd , zrhop ! 3D workspace
	81	REAL(wp), POINTER, DIMENSION(:,:,:,:) :: ztsn ! 4D workspace
[1756]	82	!!--------------------------------------------------------------------
[3294]	83	IF( nn_timing == 1 ) CALL timing_start('dia_ar5')
	84
[7646]	85	IF( kt == nit000 ) CALL dia_ar5_init
[1756]	86
[7646]	87	IF( l_ar5 ) THEN
	88	CALL wrk_alloc( jpi , jpj , zarea_ssh , zbotpres )
	89	CALL wrk_alloc( jpi , jpj , jpk , zrhd , zrhop )
	90	CALL wrk_alloc( jpi , jpj , jpk , jpts , ztsn )
[7698]	91	!$OMP PARALLEL DO schedule(static) private(jj, ji)
	92	DO jj = 1, jpj
	93	DO ji = 1, jpi
	94	zarea_ssh(ji,jj) = area(ji,jj) * sshn(ji,jj)
	95	END DO
	96	END DO
[7646]	97	ENDIF
	98	!
	99	IF( iom_use( 'voltot' ) .OR. iom_use( 'sshtot' ) .OR. iom_use( 'sshdyn' ) ) THEN
	100	! ! total volume of liquid seawater
	101	zvolssh = SUM( zarea_ssh(:,:) )
	102	IF( lk_mpp ) CALL mpp_sum( zvolssh )
	103	zvol = vol0 + zvolssh
[1756]	104
[7646]	105	CALL iom_put( 'voltot', zvol )
	106	CALL iom_put( 'sshtot', zvolssh / area_tot )
	107	CALL iom_put( 'sshdyn', sshn(:,:) - (zvolssh / area_tot) )
	108	!
	109	ENDIF
[1756]	110
[7646]	111	IF( iom_use( 'botpres' ) .OR. iom_use( 'sshthster' ) .OR. iom_use( 'sshsteric' ) ) THEN
	112	!
[7698]	113	!$OMP PARALLEL DO schedule(static) private(jk, jj, ji)
	114	DO jk = 1, jpk
	115	DO jj = 1, jpj
	116	DO ji = 1, jpi
	117	ztsn(ji,jj,jk,jp_tem) = tsn(ji,jj,jk,jp_tem) ! thermosteric ssh
	118	ztsn(ji,jj,jk,jp_sal) = sn0(ji,jj,jk)
	119	END DO
	120	END DO
	121	END DO
[7646]	122	CALL eos( ztsn, zrhd, gdept_n(:,:,:) ) ! now in situ density using initial salinity
	123	!
[7698]	124	!$OMP PARALLEL
	125	!$OMP DO schedule(static) private(jj, ji)
	126	DO jj = 1, jpj
	127	DO ji = 1, jpi
	128	zbotpres(ji,jj) = 0._wp ! no atmospheric surface pressure, levitating sea-ice
	129	END DO
	130	END DO
[7646]	131	DO jk = 1, jpkm1
[7698]	132	!$OMP DO schedule(static) private(jj, ji)
	133	DO jj = 1, jpj
	134	DO ji = 1, jpi
	135	zbotpres(ji,jj) = zbotpres(ji,jj) + e3t_n(ji,jj,jk) * zrhd(ji,jj,jk)
	136	END DO
	137	END DO
[7646]	138	END DO
[7698]	139	!$OMP END PARALLEL
[7646]	140	IF( ln_linssh ) THEN
	141	IF( ln_isfcav ) THEN
[7698]	142	!$OMP PARALLEL DO schedule(static) private(jj, ji)
[7646]	143	DO ji = 1, jpi
	144	DO jj = 1, jpj
	145	zbotpres(ji,jj) = zbotpres(ji,jj) + sshn(ji,jj) * zrhd(ji,jj,mikt(ji,jj)) + riceload(ji,jj)
	146	END DO
[5120]	147	END DO
[7646]	148	ELSE
[7698]	149	!$OMP PARALLEL DO schedule(static) private(jj, ji)
	150	DO ji = 1, jpi
	151	DO jj = 1, jpj
	152	zbotpres(ji,jj) = zbotpres(ji,jj) + sshn(ji,jj) * zrhd(ji,jj,1)
	153	END DO
	154	END DO
[7646]	155	END IF
[6140]	156	!!gm
	157	!!gm riceload should be added in both ln_linssh=T or F, no?
	158	!!gm
[7646]	159	END IF
[7698]	160	!
	161	zarho = SUM( area(:,:) * zbotpres(:,:) )
[7646]	162	!
	163	IF( lk_mpp ) CALL mpp_sum( zarho )
	164	zssh_steric = - zarho / area_tot
	165	CALL iom_put( 'sshthster', zssh_steric )
[1756]	166
[7646]	167	! ! steric sea surface height
	168	CALL eos( tsn, zrhd, zrhop, gdept_n(:,:,:) ) ! now in situ and potential density
[7698]	169	!$OMP PARALLEL DO schedule(static) private(jj, ji)
	170	DO jj = 1, jpj
	171	DO ji = 1, jpi
	172	zrhop(ji,jj,jpk) = 0._wp
	173	END DO
	174	END DO
[7646]	175	CALL iom_put( 'rhop', zrhop )
	176	!
[7698]	177	!$OMP PARALLEL
	178	!$OMP DO schedule(static) private(jj, ji)
	179	DO jj = 1, jpj
	180	DO ji = 1, jpi
	181	zbotpres(ji,jj) = 0._wp ! no atmospheric surface pressure, levitating sea-ice
	182	END DO
	183	END DO
[7646]	184	DO jk = 1, jpkm1
[7698]	185	!$OMP DO schedule(static) private(jj, ji)
	186	DO jj = 1, jpj
	187	DO ji = 1, jpi
	188	zbotpres(ji,jj) = zbotpres(ji,jj) + e3t_n(ji,jj,jk) * zrhd(ji,jj,jk)
	189	END DO
	190	END DO
[7646]	191	END DO
	192	IF( ln_linssh ) THEN
	193	IF ( ln_isfcav ) THEN
[7698]	194	!$OMP DO schedule(static) private(jj, ji)
[7646]	195	DO ji = 1,jpi
	196	DO jj = 1,jpj
	197	zbotpres(ji,jj) = zbotpres(ji,jj) + sshn(ji,jj) * zrhd(ji,jj,mikt(ji,jj)) + riceload(ji,jj)
	198	END DO
[5120]	199	END DO
[7646]	200	ELSE
[7698]	201	!$OMP DO schedule(static) private(jj, ji)
	202	DO jj = 1, jpj
	203	DO ji = 1, jpi
	204	zbotpres(ji,jj) = zbotpres(ji,jj) + sshn(ji,jj) * zrhd(ji,jj,1)
	205	END DO
	206	END DO
[7646]	207	END IF
[5120]	208	END IF
[7698]	209	!$OMP END PARALLEL
[7646]	210	!
[7698]	211	zarho = SUM( area(:,:) * zbotpres(:,:) )
[7646]	212	IF( lk_mpp ) CALL mpp_sum( zarho )
	213	zssh_steric = - zarho / area_tot
	214	CALL iom_put( 'sshsteric', zssh_steric )
[1756]	215
[7646]	216	! ! ocean bottom pressure
	217	zztmp = rau0 * grav * 1.e-4_wp ! recover pressure from pressure anomaly and cover to dbar = 1.e4 Pa
[7698]	218	!$OMP PARALLEL DO schedule(static) private(jj, ji)
	219	DO jj = 1, jpj
	220	DO ji = 1, jpi
	221	zbotpres(ji,jj) = zztmp * ( zbotpres(ji,jj) + sshn(ji,jj) + thick0(ji,jj) )
	222	END DO
	223	END DO
[7646]	224	CALL iom_put( 'botpres', zbotpres )
	225	!
	226	ENDIF
[1756]	227
[7646]	228	IF( iom_use( 'masstot' ) .OR. iom_use( 'temptot' ) .OR. iom_use( 'saltot' ) ) THEN
	229	! ! Mean density anomalie, temperature and salinity
	230	ztemp = 0._wp
	231	zsal = 0._wp
	232	DO jk = 1, jpkm1
	233	DO jj = 1, jpj
	234	DO ji = 1, jpi
	235	zztmp = area(ji,jj) * e3t_n(ji,jj,jk)
	236	ztemp = ztemp + zztmp * tsn(ji,jj,jk,jp_tem)
	237	zsal = zsal + zztmp * tsn(ji,jj,jk,jp_sal)
	238	END DO
[1756]	239	END DO
	240	END DO
[7646]	241	IF( ln_linssh ) THEN
	242	IF( ln_isfcav ) THEN
	243	DO ji = 1, jpi
	244	DO jj = 1, jpj
	245	ztemp = ztemp + zarea_ssh(ji,jj) * tsn(ji,jj,mikt(ji,jj),jp_tem)
	246	zsal = zsal + zarea_ssh(ji,jj) * tsn(ji,jj,mikt(ji,jj),jp_sal)
	247	END DO
[5120]	248	END DO
[7646]	249	ELSE
	250	ztemp = ztemp + SUM( zarea_ssh(:,:) * tsn(:,:,1,jp_tem) )
	251	zsal = zsal + SUM( zarea_ssh(:,:) * tsn(:,:,1,jp_sal) )
	252	END IF
	253	ENDIF
	254	IF( lk_mpp ) THEN
	255	CALL mpp_sum( ztemp )
	256	CALL mpp_sum( zsal )
[5120]	257	END IF
[7646]	258	!
	259	zmass = rau0 * ( zarho + zvol ) ! total mass of liquid seawater
	260	ztemp = ztemp / zvol ! potential temperature in liquid seawater
	261	zsal = zsal / zvol ! Salinity of liquid seawater
	262	!
	263	CALL iom_put( 'masstot', zmass )
	264	CALL iom_put( 'temptot', ztemp )
	265	CALL iom_put( 'saltot' , zsal )
	266	!
[1756]	267	ENDIF
[7646]	268
	269	IF( iom_use( 'tnpeo' )) THEN
	270	! Work done against stratification by vertical mixing
	271	! Exclude points where rn2 is negative as convection kicks in here and
	272	! work is not being done against stratification
	273	CALL wrk_alloc( jpi, jpj, zpe )
[7698]	274	!$OMP PARALLEL DO schedule(static) private(jj,ji)
	275	DO jj = 1, jpj
	276	DO ji = 1, jpi
	277	zpe(ji,jj) = 0._wp
	278	END DO
	279	END DO
[7646]	280	IF( lk_zdfddm ) THEN
[7698]	281	!$OMP PARALLEL DO schedule(static) private(ji,jj,jk,zrw,zaw,zbw)
[7646]	282	DO ji=1,jpi
	283	DO jj=1,jpj
	284	DO jk=1,jpk
	285	zrw = ( gdepw_n(ji,jj,jk ) - gdept_n(ji,jj,jk) ) &
	286	& / ( gdept_n(ji,jj,jk-1) - gdept_n(ji,jj,jk) )
	287	!
	288	zaw = rab_n(ji,jj,jk,jp_tem) * (1. - zrw) + rab_n(ji,jj,jk-1,jp_tem)* zrw
	289	zbw = rab_n(ji,jj,jk,jp_sal) * (1. - zrw) + rab_n(ji,jj,jk-1,jp_sal)* zrw
	290	!
	291	zpe(ji, jj) = zpe(ji, jj) - MIN(0._wp, rn2(ji,jj,jk)) * &
	292	& grav * (avt(ji,jj,jk) * zaw * (tsn(ji,jj,jk-1,jp_tem) - tsn(ji,jj,jk,jp_tem) ) &
	293	& - fsavs(ji,jj,jk) * zbw * (tsn(ji,jj,jk-1,jp_sal) - tsn(ji,jj,jk,jp_sal) ) )
	294
	295	ENDDO
	296	ENDDO
	297	ENDDO
	298	ELSE
[7698]	299	!$OMP PARALLEL DO schedule(static) private(ji,jj,jk)
[7646]	300	DO ji = 1, jpi
	301	DO jj = 1, jpj
	302	DO jk = 1, jpk
	303	zpe(ji,jj) = zpe(ji,jj) + avt(ji, jj, jk) * MIN(0._wp,rn2(ji, jj, jk)) * rau0 * e3w_n(ji, jj, jk)
	304	ENDDO
	305	ENDDO
	306	ENDDO
	307	ENDIF
	308	CALL lbc_lnk( zpe, 'T', 1._wp)
	309	CALL iom_put( 'tnpeo', zpe )
	310	CALL wrk_dealloc( jpi, jpj, zpe )
	311	ENDIF
[1756]	312	!
[7646]	313	IF( l_ar5 ) THEN
	314	CALL wrk_dealloc( jpi , jpj , zarea_ssh , zbotpres )
	315	CALL wrk_dealloc( jpi , jpj , jpk , zrhd , zrhop )
	316	CALL wrk_dealloc( jpi , jpj , jpk , jpts , ztsn )
	317	ENDIF
[1756]	318	!
[3294]	319	IF( nn_timing == 1 ) CALL timing_stop('dia_ar5')
	320	!
[1756]	321	END SUBROUTINE dia_ar5
	322
[7646]	323	SUBROUTINE dia_ar5_hst( ktra, cptr, pua, pva )
	324	!!----------------------------------------------------------------------
	325	!! * ROUTINE dia_ar5_htr *
	326	!!----------------------------------------------------------------------
	327	!! Wrapper for heat transport calculations
	328	!! Called from all advection and/or diffusion routines
	329	!!----------------------------------------------------------------------
	330	INTEGER , INTENT(in ) :: ktra ! tracer index
	331	CHARACTER(len=3) , INTENT(in) :: cptr ! transport type 'adv'/'ldf'
	332	REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(in) :: pua ! 3D input array of advection/diffusion
	333	REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(in) :: pva ! 3D input array of advection/diffusion
	334	!
	335	INTEGER :: ji, jj, jk
	336	REAL(wp), POINTER, DIMENSION(:,:) :: z2d
[1756]	337
[7646]	338
	339
	340	CALL wrk_alloc( jpi, jpj, z2d )
	341	z2d(:,:) = pua(:,:,1)
	342	DO jk = 1, jpkm1
	343	DO jj = 2, jpjm1
	344	DO ji = fs_2, fs_jpim1 ! vector opt.
	345	z2d(ji,jj) = z2d(ji,jj) + pua(ji,jj,jk)
	346	END DO
	347	END DO
	348	END DO
	349	CALL lbc_lnk( z2d, 'U', -1. )
	350	IF( cptr == 'adv' ) THEN
	351	IF( ktra == jp_tem ) CALL iom_put( "uadv_heattr" , rau0_rcp * z2d ) ! advective heat transport in i-direction
	352	IF( ktra == jp_sal ) CALL iom_put( "uadv_salttr" , rau0 * z2d ) ! advective salt transport in i-direction
	353	ENDIF
	354	IF( cptr == 'ldf' ) THEN
	355	IF( ktra == jp_tem ) CALL iom_put( "udiff_heattr" , rau0_rcp * z2d ) ! diffusive heat transport in i-direction
	356	IF( ktra == jp_sal ) CALL iom_put( "udiff_salttr" , rau0 * z2d ) ! diffusive salt transport in i-direction
	357	ENDIF
	358	!
	359	z2d(:,:) = pva(:,:,1)
	360	DO jk = 1, jpkm1
	361	DO jj = 2, jpjm1
	362	DO ji = fs_2, fs_jpim1 ! vector opt.
	363	z2d(ji,jj) = z2d(ji,jj) + pva(ji,jj,jk)
	364	END DO
	365	END DO
	366	END DO
	367	CALL lbc_lnk( z2d, 'V', -1. )
	368	IF( cptr == 'adv' ) THEN
	369	IF( ktra == jp_tem ) CALL iom_put( "vadv_heattr" , rau0_rcp * z2d ) ! advective heat transport in j-direction
	370	IF( ktra == jp_sal ) CALL iom_put( "vadv_salttr" , rau0 * z2d ) ! advective salt transport in j-direction
	371	ENDIF
	372	IF( cptr == 'ldf' ) THEN
	373	IF( ktra == jp_tem ) CALL iom_put( "vdiff_heattr" , rau0_rcp * z2d ) ! diffusive heat transport in j-direction
	374	IF( ktra == jp_sal ) CALL iom_put( "vdiff_salttr" , rau0 * z2d ) ! diffusive salt transport in j-direction
	375	ENDIF
	376
	377	CALL wrk_dealloc( jpi, jpj, z2d )
	378
	379	END SUBROUTINE dia_ar5_hst
	380
	381
[1756]	382	SUBROUTINE dia_ar5_init
	383	!!----------------------------------------------------------------------
	384	!! * ROUTINE dia_ar5_init *
	385	!!
[2528]	386	!! ** Purpose : initialization for AR5 diagnostic computation
[1756]	387	!!----------------------------------------------------------------------
	388	INTEGER :: inum
	389	INTEGER :: ik
	390	INTEGER :: ji, jj, jk ! dummy loop indices
[7698]	391	REAL(wp) :: zztmp, zsum
[2715]	392	REAL(wp), POINTER, DIMENSION(:,:,:,:) :: zsaldta ! Jan/Dec levitus salinity
[5253]	393	!
[1756]	394	!!----------------------------------------------------------------------
	395	!
[3294]	396	IF( nn_timing == 1 ) CALL timing_start('dia_ar5_init')
	397	!
[7646]	398	l_ar5 = .FALSE.
	399	IF( iom_use( 'voltot' ) .OR. iom_use( 'sshtot' ) .OR. iom_use( 'sshdyn' ) .OR. &
	400	& iom_use( 'masstot' ) .OR. iom_use( 'temptot' ) .OR. iom_use( 'saltot' ) .OR. &
	401	& iom_use( 'botpres' ) .OR. iom_use( 'sshthster' ) .OR. iom_use( 'sshsteric' ) ) L_ar5 = .TRUE.
	402
	403	IF( l_ar5 ) THEN
	404	!
	405	CALL wrk_alloc( jpi , jpj , jpk, jpts, zsaldta )
	406	! ! allocate dia_ar5 arrays
	407	IF( dia_ar5_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'dia_ar5_init : unable to allocate arrays' )
[2715]	408
[7698]	409	!$OMP PARALLEL DO schedule(static) private(jj, ji)
	410	DO jj = 1, jpj
	411	DO ji = 1, jpi
	412	area(ji,jj) = e1e2t(ji,jj) * tmask_i(ji,jj)
	413	END DO
	414	END DO
[1756]	415
[7646]	416	area_tot = SUM( area(:,:) ) ; IF( lk_mpp ) CALL mpp_sum( area_tot )
[1756]	417
[7646]	418	vol0 = 0._wp
[7698]	419	!$OMP PARALLEL
	420	!$OMP DO schedule(static) private(jj, ji)
	421	DO jj = 1, jpj
	422	DO ji = 1, jpi
	423	thick0(ji,jj) = 0._wp
	424	END DO
	425	END DO
[7646]	426	DO jk = 1, jpkm1
[7698]	427	!$OMP DO schedule(static) private(jj, ji, zsum)
	428	DO jj = 1, jpj
	429	DO ji = 1, jpi
	430	zsum = area (ji,jj) * tmask(ji,jj,jk) * e3t_0(ji,jj,jk)
	431	END DO
	432	END DO
	433	vol0 = vol0 + zsum
	434	!$OMP DO schedule(static) private(jj, ji)
	435	DO jj = 1, jpj
	436	DO ji = 1, jpi
	437	thick0(ji,jj) = thick0(ji,jj) + tmask_i(ji,jj) * tmask(ji,jj,jk) * e3t_0(ji,jj,jk)
	438	END DO
	439	END DO
[7646]	440	END DO
[7698]	441	!$OMP END PARALLEL
[7646]	442	IF( lk_mpp ) CALL mpp_sum( vol0 )
[5253]	443
[7646]	444	CALL iom_open ( 'sali_ref_clim_monthly', inum )
	445	CALL iom_get ( inum, jpdom_data, 'vosaline' , zsaldta(:,:,:,1), 1 )
	446	CALL iom_get ( inum, jpdom_data, 'vosaline' , zsaldta(:,:,:,2), 12 )
	447	CALL iom_close( inum )
[6665]	448
[7698]	449	!$OMP PARALLEL
	450	!$OMP DO schedule(static) private(jk, jj, ji)
	451	DO jk = 1, jpk
	452	DO jj = 1, jpj
	453	DO ji = 1, jpi
	454	sn0(ji,jj,jk) = 0.5_wp * ( zsaldta(ji,jj,jk,1) + zsaldta(ji,jj,jk,2) )
	455	sn0(ji,jj,jk) = sn0(ji,jj,jk) * tmask(ji,jj,jk)
	456	END DO
	457	END DO
	458	END DO
[7646]	459	IF( ln_zps ) THEN ! z-coord. partial steps
[7698]	460	!$OMP DO schedule(static) private(jj, ji, ik, zztmp)
[7646]	461	DO jj = 1, jpj ! interpolation of salinity at the last ocean level (i.e. the partial step)
	462	DO ji = 1, jpi
	463	ik = mbkt(ji,jj)
	464	IF( ik > 1 ) THEN
	465	zztmp = ( gdept_1d(ik) - gdept_0(ji,jj,ik) ) / ( gdept_1d(ik) - gdept_1d(ik-1) )
	466	sn0(ji,jj,ik) = ( 1._wp - zztmp ) * sn0(ji,jj,ik) + zztmp * sn0(ji,jj,ik-1)
	467	ENDIF
	468	END DO
[1756]	469	END DO
[7646]	470	ENDIF
[7698]	471	!$OMP END PARALLEL
[7646]	472	!
	473	CALL wrk_dealloc( jpi , jpj , jpk, jpts, zsaldta )
	474	!
[1756]	475	ENDIF
	476	!
[3294]	477	IF( nn_timing == 1 ) CALL timing_stop('dia_ar5_init')
	478	!
[1756]	479	END SUBROUTINE dia_ar5_init
	480
	481	!!======================================================================
	482	END MODULE diaar5

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