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diahsb.F90 in branches/2016/dev_v3_6_STABLE_r6506_AGRIF_LIM3/NEMOGCM/NEMO/OPA_SRC/DIA – NEMO

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source: branches/2016/dev_v3_6_STABLE_r6506_AGRIF_LIM3/NEMOGCM/NEMO/OPA_SRC/DIA/diahsb.F90 @ 7158

Last change on this file since 7158 was 6994, checked in by clem, 8 years ago
clean online sea ice diagnostics
Property svn:keywords set to `Id`
File size: 19.7 KB

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[2148]	1	MODULE diahsb
	2	!!======================================================================
	3	!! * MODULE diahsb *
[2334]	4	!! Ocean diagnostics: Heat, salt and volume budgets
[2148]	5	!!======================================================================
[2334]	6	!! History : 3.3 ! 2010-09 (M. Leclair) Original code
[4161]	7	!! ! 2012-10 (C. Rousset) add iom_put
[2148]	8	!!----------------------------------------------------------------------
[2334]	9
	10	!!----------------------------------------------------------------------
[4990]	11	!! dia_hsb : Diagnose the conservation of ocean heat and salt contents, and volume
	12	!! dia_hsb_rst : Read or write DIA file in restart file
	13	!! dia_hsb_init : Initialization of the conservation diagnostic
	14	!!----------------------------------------------------------------------
[2148]	15	USE oce ! ocean dynamics and tracers
	16	USE dom_oce ! ocean space and time domain
	17	USE phycst ! physical constants
	18	USE sbc_oce ! surface thermohaline fluxes
[4990]	19	USE sbcrnf ! river runoff
	20	USE sbcisf ! ice shelves
[2148]	21	USE domvvl ! vertical scale factors
	22	USE traqsr ! penetrative solar radiation
[2337]	23	USE trabbc ! bottom boundary condition
[2148]	24	USE trabbc ! bottom boundary condition
	25	USE bdy_par ! (for lk_bdy)
[4990]	26	USE restart ! ocean restart
	27	!
[4161]	28	USE iom ! I/O manager
[4990]	29	USE in_out_manager ! I/O manager
[4161]	30	USE lib_fortran ! glob_sum
[4990]	31	USE lib_mpp ! distributed memory computing library
	32	USE timing ! preformance summary
	33	USE wrk_nemo ! work arrays
[2148]	34
	35	IMPLICIT NONE
	36	PRIVATE
	37
[2334]	38	PUBLIC dia_hsb ! routine called by step.F90
[4161]	39	PUBLIC dia_hsb_init ! routine called by nemogcm.F90
[2148]	40
[4147]	41	LOGICAL, PUBLIC :: ln_diahsb !: check the heat and salt budgets
[2148]	42
[4990]	43	REAL(wp) :: surf_tot ! ocean surface
	44	REAL(wp) :: frc_t, frc_s, frc_v ! global forcing trends
	45	REAL(wp) :: frc_wn_t, frc_wn_s ! global forcing trends
	46	!
	47	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: surf , ssh_ini !
	48	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: ssh_hc_loc_ini, ssh_sc_loc_ini !
	49	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: hc_loc_ini, sc_loc_ini, e3t_ini !
[2148]	50
	51	!! * Substitutions
	52	# include "domzgr_substitute.h90"
	53	# include "vectopt_loop_substitute.h90"
	54	!!----------------------------------------------------------------------
[2287]	55	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
[2281]	56	!! $Id$
[2334]	57	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[2148]	58	!!----------------------------------------------------------------------
	59	CONTAINS
	60
	61	SUBROUTINE dia_hsb( kt )
	62	!!---------------------------------------------------------------------------
	63	!! * ROUTINE dia_hsb *
	64	!!
[2334]	65	!! ** Purpose: Compute the ocean global heat content, salt content and volume conservation
[2148]	66	!!
	67	!! ** Method : - Compute the deviation of heat content, salt content and volume
[2334]	68	!! at the current time step from their values at nit000
	69	!! - Compute the contribution of forcing and remove it from these deviations
	70	!!
[2148]	71	!!---------------------------------------------------------------------------
	72	INTEGER, INTENT(in) :: kt ! ocean time-step index
[4990]	73	!
	74	INTEGER :: ji, jj, jk ! dummy loop indice
	75	REAL(wp) :: zdiff_hc , zdiff_sc ! heat and salt content variations
	76	REAL(wp) :: zdiff_hc1 , zdiff_sc1 ! - - - -
	77	REAL(wp) :: zdiff_v1 , zdiff_v2 ! volume variation
	78	REAL(wp) :: zerr_hc1 , zerr_sc1 ! heat and salt content misfit
	79	REAL(wp) :: zvol_tot ! volume
	80	REAL(wp) :: z_frc_trd_t , z_frc_trd_s ! - -
	81	REAL(wp) :: z_frc_trd_v ! - -
	82	REAL(wp) :: z_wn_trd_t , z_wn_trd_s ! - -
	83	REAL(wp) :: z_ssh_hc , z_ssh_sc ! - -
	84	REAL(wp), DIMENSION(:,:), POINTER :: z2d0, z2d1
[2148]	85	!!---------------------------------------------------------------------------
[4161]	86	IF( nn_timing == 1 ) CALL timing_start('dia_hsb')
[6970]	87	!
[4990]	88	CALL wrk_alloc( jpi,jpj, z2d0, z2d1 )
	89	!
	90	tsn(:,:,:,1) = tsn(:,:,:,1) * tmask(:,:,:) ; tsb(:,:,:,1) = tsb(:,:,:,1) * tmask(:,:,:) ;
	91	tsn(:,:,:,2) = tsn(:,:,:,2) * tmask(:,:,:) ; tsb(:,:,:,2) = tsb(:,:,:,2) * tmask(:,:,:) ;
[2148]	92	! ------------------------- !
	93	! 1 - Trends due to forcing !
	94	! ------------------------- !
[5628]	95	z_frc_trd_v = r1_rau0 * glob_sum( - ( emp(:,:) - rnf(:,:) + fwfisf(:,:) ) * surf(:,:) ) ! volume fluxes
[4990]	96	z_frc_trd_t = glob_sum( sbc_tsc(:,:,jp_tem) * surf(:,:) ) ! heat fluxes
	97	z_frc_trd_s = glob_sum( sbc_tsc(:,:,jp_sal) * surf(:,:) ) ! salt fluxes
[5120]	98	! Add runoff heat & salt input
[4558]	99	IF( ln_rnf ) z_frc_trd_t = z_frc_trd_t + glob_sum( rnf_tsc(:,:,jp_tem) * surf(:,:) )
	100	IF( ln_rnf_sal) z_frc_trd_s = z_frc_trd_s + glob_sum( rnf_tsc(:,:,jp_sal) * surf(:,:) )
[5120]	101	! Add ice shelf heat & salt input
[4990]	102	IF( nn_isf .GE. 1 ) THEN
[5628]	103	z_frc_trd_t = z_frc_trd_t + glob_sum( risf_tsc(:,:,jp_tem) * surf(:,:) )
	104	z_frc_trd_s = z_frc_trd_s + glob_sum( risf_tsc(:,:,jp_sal) * surf(:,:) )
[4990]	105	ENDIF
[4162]	106
[2148]	107	! Add penetrative solar radiation
[4558]	108	IF( ln_traqsr ) z_frc_trd_t = z_frc_trd_t + r1_rau0_rcp * glob_sum( qsr (:,:) * surf(:,:) )
[2148]	109	! Add geothermal heat flux
[4558]	110	IF( ln_trabbc ) z_frc_trd_t = z_frc_trd_t + glob_sum( qgh_trd0(:,:) * surf(:,:) )
[4161]	111	!
[4558]	112	IF( .NOT. lk_vvl ) THEN
[5120]	113	IF ( ln_isfcav ) THEN
	114	DO ji=1,jpi
	115	DO jj=1,jpj
	116	z2d0(ji,jj) = surf(ji,jj) * wn(ji,jj,mikt(ji,jj)) * tsb(ji,jj,mikt(ji,jj),jp_tem)
	117	z2d1(ji,jj) = surf(ji,jj) * wn(ji,jj,mikt(ji,jj)) * tsb(ji,jj,mikt(ji,jj),jp_sal)
	118	ENDDO
[4990]	119	ENDDO
[5120]	120	ELSE
	121	z2d0(:,:) = surf(:,:) * wn(:,:,1) * tsb(:,:,1,jp_tem)
	122	z2d1(:,:) = surf(:,:) * wn(:,:,1) * tsb(:,:,1,jp_sal)
	123	END IF
[4990]	124	z_wn_trd_t = - glob_sum( z2d0 )
	125	z_wn_trd_s = - glob_sum( z2d1 )
[4558]	126	ENDIF
	127
[2148]	128	frc_v = frc_v + z_frc_trd_v * rdt
	129	frc_t = frc_t + z_frc_trd_t * rdt
	130	frc_s = frc_s + z_frc_trd_s * rdt
[4558]	131	! ! Advection flux through fixed surface (z=0)
	132	IF( .NOT. lk_vvl ) THEN
	133	frc_wn_t = frc_wn_t + z_wn_trd_t * rdt
	134	frc_wn_s = frc_wn_s + z_wn_trd_s * rdt
	135	ENDIF
[2148]	136
[4161]	137	! ------------------------ !
[4558]	138	! 2 - Content variations !
[4161]	139	! ------------------------ !
[4990]	140	zdiff_v2 = 0._wp
	141	zdiff_hc = 0._wp
	142	zdiff_sc = 0._wp
[4558]	143
[2148]	144	! volume variation (calculated with ssh)
[4558]	145	zdiff_v1 = glob_sum( surf(:,:) * ( sshn(:,:) - ssh_ini(:,:) ) )
	146
	147	! heat & salt content variation (associated with ssh)
	148	IF( .NOT. lk_vvl ) THEN
[5120]	149	IF ( ln_isfcav ) THEN
	150	DO ji = 1, jpi
	151	DO jj = 1, jpj
	152	z2d0(ji,jj) = surf(ji,jj) * ( tsn(ji,jj,mikt(ji,jj),jp_tem) * sshn(ji,jj) - ssh_hc_loc_ini(ji,jj) )
	153	z2d1(ji,jj) = surf(ji,jj) * ( tsn(ji,jj,mikt(ji,jj),jp_sal) * sshn(ji,jj) - ssh_sc_loc_ini(ji,jj) )
	154	END DO
[4990]	155	END DO
[5120]	156	ELSE
	157	z2d0(:,:) = surf(:,:) * ( tsn(:,:,1,jp_tem) * sshn(:,:) - ssh_hc_loc_ini(:,:) )
	158	z2d1(:,:) = surf(:,:) * ( tsn(:,:,1,jp_sal) * sshn(:,:) - ssh_sc_loc_ini(:,:) )
	159	END IF
[4990]	160	z_ssh_hc = glob_sum( z2d0 )
	161	z_ssh_sc = glob_sum( z2d1 )
[4558]	162	ENDIF
	163
[2148]	164	DO jk = 1, jpkm1
[4161]	165	! volume variation (calculated with scale factors)
[4558]	166	zdiff_v2 = zdiff_v2 + glob_sum( surf(:,:) * tmask(:,:,jk) &
	167	& * ( fse3t_n(:,:,jk) - e3t_ini(:,:,jk) ) )
[2148]	168	! heat content variation
[4558]	169	zdiff_hc = zdiff_hc + glob_sum( surf(:,:) * tmask(:,:,jk) &
	170	& * ( fse3t_n(:,:,jk) * tsn(:,:,jk,jp_tem) - hc_loc_ini(:,:,jk) ) )
[2148]	171	! salt content variation
[4558]	172	zdiff_sc = zdiff_sc + glob_sum( surf(:,:) * tmask(:,:,jk) &
	173	& * ( fse3t_n(:,:,jk) * tsn(:,:,jk,jp_sal) - sc_loc_ini(:,:,jk) ) )
[2148]	174	ENDDO
	175
[6970]	176	! ------------------------ !
	177	! 3 - Drifts !
	178	! ------------------------ !
[4558]	179	zdiff_v1 = zdiff_v1 - frc_v
	180	IF( lk_vvl ) zdiff_v2 = zdiff_v2 - frc_v
	181	zdiff_hc = zdiff_hc - frc_t
	182	zdiff_sc = zdiff_sc - frc_s
[4162]	183	IF( .NOT. lk_vvl ) THEN
[4558]	184	zdiff_hc1 = zdiff_hc + z_ssh_hc
	185	zdiff_sc1 = zdiff_sc + z_ssh_sc
	186	zerr_hc1 = z_ssh_hc - frc_wn_t
	187	zerr_sc1 = z_ssh_sc - frc_wn_s
[4162]	188	ENDIF
[4558]	189
[2148]	190	! ----------------------- !
[6970]	191	! 4 - Diagnostics writing !
[4161]	192	! ----------------------- !
[4990]	193	zvol_tot = 0._wp ! total ocean volume (calculated with scale factors)
[4161]	194	DO jk = 1, jpkm1
[4558]	195	zvol_tot = zvol_tot + glob_sum( surf(:,:) * tmask(:,:,jk) * fse3t_n(:,:,jk) )
	196	END DO
	197
[4990]	198	!!gm to be added ?
	199	! IF( .NOT. lk_vvl ) THEN ! fixed volume, add the ssh contribution
	200	! zvol_tot = zvol_tot + glob_sum( surf(:,:) * sshn(:,:) )
	201	! ENDIF
	202	!!gm end
	203
[6970]	204	CALL iom_put( 'bgfrcvol' , frc_v * 1.e-9 ) ! vol - surface forcing (km3)
	205	CALL iom_put( 'bgfrctem' , frc_t * rau0 * rcp * 1.e-20 ) ! hc - surface forcing (1.e20 J)
	206	CALL iom_put( 'bgfrchfx' , frc_t * rau0 * rcp / & ! hc - surface forcing (W/m2)
	207	& ( surf_tot * kt * rdt ) )
	208	CALL iom_put( 'bgfrcsal' , frc_s * 1.e-9 ) ! sc - surface forcing (psu*km3)
	209
[4558]	210	IF( lk_vvl ) THEN
[6970]	211	CALL iom_put( 'bgtemper' , zdiff_hc / zvol_tot ) ! Temperature drift (C)
	212	CALL iom_put( 'bgsaline' , zdiff_sc / zvol_tot ) ! Salinity drift (pss)
	213	CALL iom_put( 'bgheatco' , zdiff_hc * 1.e-20 * rau0 * rcp ) ! Heat content drift (1.e20 J)
	214	CALL iom_put( 'bgheatfx' , zdiff_hc * rau0 * rcp / & ! Heat flux drift (W/m2)
	215	& ( surf_tot * kt * rdt ) )
	216	CALL iom_put( 'bgsaltco' , zdiff_sc * 1.e-9 ) ! Salt content drift (psu*km3)
	217	CALL iom_put( 'bgvolssh' , zdiff_v1 * 1.e-9 ) ! volume ssh drift (km3)
	218	CALL iom_put( 'bgvole3t' , zdiff_v2 * 1.e-9 ) ! volume e3t drift (km3)
[4558]	219	ELSE
[6970]	220	CALL iom_put( 'bgtemper' , zdiff_hc1 / zvol_tot) ! Heat content drift (C)
	221	CALL iom_put( 'bgsaline' , zdiff_sc1 / zvol_tot) ! Salt content drift (pss)
	222	CALL iom_put( 'bgheatco' , zdiff_hc1 * 1.e-20 * rau0 * rcp ) ! Heat content drift (1.e20 J)
	223	CALL iom_put( 'bgheatfx' , zdiff_hc1 * rau0 * rcp / & ! Heat flux drift (W/m2)
	224	& ( surf_tot * kt * rdt ) )
	225	CALL iom_put( 'bgsaltco' , zdiff_sc1 * 1.e-9 ) ! Salt content drift (psu*km3)
	226	CALL iom_put( 'bgvolssh' , zdiff_v1 * 1.e-9 ) ! volume ssh drift (km3)
[4558]	227	CALL iom_put( 'bgmistem' , zerr_hc1 / zvol_tot ) ! hc - error due to free surface (C)
	228	CALL iom_put( 'bgmissal' , zerr_sc1 / zvol_tot ) ! sc - error due to free surface (psu)
[4162]	229	ENDIF
[4558]	230	!
	231	IF( lrst_oce ) CALL dia_hsb_rst( kt, 'WRITE' )
[4161]	232
[4990]	233	CALL wrk_dealloc( jpi,jpj, z2d0, z2d1 )
	234
[3294]	235	IF( nn_timing == 1 ) CALL timing_stop('dia_hsb')
[4990]	236	!
[2148]	237	END SUBROUTINE dia_hsb
	238
[2334]	239
[4161]	240	SUBROUTINE dia_hsb_rst( kt, cdrw )
	241	!!---------------------------------------------------------------------
[6994]	242	!! * ROUTINE dia_hsb_rst *
[4161]	243	!!
	244	!! ** Purpose : Read or write DIA file in restart file
	245	!!
	246	!! ** Method : use of IOM library
	247	!!----------------------------------------------------------------------
	248	INTEGER , INTENT(in) :: kt ! ocean time-step
	249	CHARACTER(len=*), INTENT(in) :: cdrw ! "READ"/"WRITE" flag
	250	!
[4990]	251	INTEGER :: ji, jj, jk ! dummy loop indices
[4161]	252	!!----------------------------------------------------------------------
	253	!
	254	IF( TRIM(cdrw) == 'READ' ) THEN ! Read/initialise
	255	IF( ln_rstart ) THEN !* Read the restart file
	256	!
[4558]	257	IF(lwp) WRITE(numout,*) '~~~~~~~'
	258	IF(lwp) WRITE(numout,*) ' dia_hsb_rst at it= ', kt,' date= ', ndastp
	259	IF(lwp) WRITE(numout,*) '~~~~~~~'
[4161]	260	CALL iom_get( numror, 'frc_v', frc_v )
	261	CALL iom_get( numror, 'frc_t', frc_t )
	262	CALL iom_get( numror, 'frc_s', frc_s )
[4558]	263	IF( .NOT. lk_vvl ) THEN
	264	CALL iom_get( numror, 'frc_wn_t', frc_wn_t )
	265	CALL iom_get( numror, 'frc_wn_s', frc_wn_s )
	266	ENDIF
[6970]	267	CALL iom_get( numror, jpdom_autoglo, 'ssh_ini', ssh_ini(:,:) )
	268	CALL iom_get( numror, jpdom_autoglo, 'e3t_ini', e3t_ini(:,:,:) )
	269	CALL iom_get( numror, jpdom_autoglo, 'hc_loc_ini', hc_loc_ini(:,:,:) )
	270	CALL iom_get( numror, jpdom_autoglo, 'sc_loc_ini', sc_loc_ini(:,:,:) )
[4558]	271	IF( .NOT. lk_vvl ) THEN
[6970]	272	CALL iom_get( numror, jpdom_autoglo, 'ssh_hc_loc_ini', ssh_hc_loc_ini(:,:) )
	273	CALL iom_get( numror, jpdom_autoglo, 'ssh_sc_loc_ini', ssh_sc_loc_ini(:,:) )
[4558]	274	ENDIF
[4161]	275	ELSE
[4558]	276	IF(lwp) WRITE(numout,*) '~~~~~~~'
	277	IF(lwp) WRITE(numout,*) ' dia_hsb at initial state '
	278	IF(lwp) WRITE(numout,*) '~~~~~~~'
[4161]	279	ssh_ini(:,:) = sshn(:,:) ! initial ssh
	280	DO jk = 1, jpk
	281	e3t_ini (:,:,jk) = fse3t_n(:,:,jk) ! initial vertical scale factors
	282	hc_loc_ini(:,:,jk) = tsn(:,:,jk,jp_tem) * fse3t_n(:,:,jk) ! initial heat content
	283	sc_loc_ini(:,:,jk) = tsn(:,:,jk,jp_sal) * fse3t_n(:,:,jk) ! initial salt content
	284	END DO
[4990]	285	frc_v = 0._wp ! volume trend due to forcing
	286	frc_t = 0._wp ! heat content - - - -
	287	frc_s = 0._wp ! salt content - - - -
[4558]	288	IF( .NOT. lk_vvl ) THEN
[5120]	289	IF ( ln_isfcav ) THEN
	290	DO ji=1,jpi
	291	DO jj=1,jpj
	292	ssh_hc_loc_ini(ji,jj) = tsn(ji,jj,mikt(ji,jj),jp_tem) * sshn(ji,jj) ! initial heat content in ssh
	293	ssh_sc_loc_ini(ji,jj) = tsn(ji,jj,mikt(ji,jj),jp_sal) * sshn(ji,jj) ! initial salt content in ssh
	294	ENDDO
[4990]	295	ENDDO
[5120]	296	ELSE
	297	ssh_hc_loc_ini(:,:) = tsn(:,:,1,jp_tem) * sshn(:,:) ! initial heat content in ssh
	298	ssh_sc_loc_ini(:,:) = tsn(:,:,1,jp_sal) * sshn(:,:) ! initial salt content in ssh
	299	END IF
[4990]	300	frc_wn_t = 0._wp ! initial heat content misfit due to free surface
	301	frc_wn_s = 0._wp ! initial salt content misfit due to free surface
[4558]	302	ENDIF
[4161]	303	ENDIF
[2148]	304
[4161]	305	ELSEIF( TRIM(cdrw) == 'WRITE' ) THEN ! Create restart file
	306	! ! -------------------
[4558]	307	IF(lwp) WRITE(numout,*) '~~~~~~~'
	308	IF(lwp) WRITE(numout,*) ' dia_hsb_rst at it= ', kt,' date= ', ndastp
	309	IF(lwp) WRITE(numout,*) '~~~~~~~'
	310
[4161]	311	CALL iom_rstput( kt, nitrst, numrow, 'frc_v' , frc_v )
	312	CALL iom_rstput( kt, nitrst, numrow, 'frc_t' , frc_t )
	313	CALL iom_rstput( kt, nitrst, numrow, 'frc_s' , frc_s )
[4558]	314	IF( .NOT. lk_vvl ) THEN
	315	CALL iom_rstput( kt, nitrst, numrow, 'frc_wn_t', frc_wn_t )
	316	CALL iom_rstput( kt, nitrst, numrow, 'frc_wn_s', frc_wn_s )
	317	ENDIF
[6970]	318	CALL iom_rstput( kt, nitrst, numrow, 'ssh_ini', ssh_ini(:,:) )
	319	CALL iom_rstput( kt, nitrst, numrow, 'e3t_ini', e3t_ini(:,:,:) )
	320	CALL iom_rstput( kt, nitrst, numrow, 'hc_loc_ini', hc_loc_ini(:,:,:) )
	321	CALL iom_rstput( kt, nitrst, numrow, 'sc_loc_ini', sc_loc_ini(:,:,:) )
[4558]	322	IF( .NOT. lk_vvl ) THEN
[6970]	323	CALL iom_rstput( kt, nitrst, numrow, 'ssh_hc_loc_ini', ssh_hc_loc_ini(:,:) )
	324	CALL iom_rstput( kt, nitrst, numrow, 'ssh_sc_loc_ini', ssh_sc_loc_ini(:,:) )
[4558]	325	ENDIF
[6970]	326
[4161]	327	!
	328	ENDIF
	329	!
	330	END SUBROUTINE dia_hsb_rst
[2148]	331
[4990]	332
	333	SUBROUTINE dia_hsb_init
	334	!!---------------------------------------------------------------------------
	335	!! * ROUTINE dia_hsb *
	336	!!
	337	!! ** Purpose: Initialization for the heat salt volume budgets
	338	!!
	339	!! ** Method : Compute initial heat content, salt content and volume
	340	!!
	341	!! ** Action : - Compute initial heat content, salt content and volume
	342	!! - Initialize forcing trends
	343	!! - Compute coefficients for conversion
	344	!!---------------------------------------------------------------------------
	345	INTEGER :: ierror ! local integer
	346	INTEGER :: ios
	347	!
	348	NAMELIST/namhsb/ ln_diahsb
	349	!!----------------------------------------------------------------------
	350
	351	REWIND( numnam_ref ) ! Namelist namhsb in reference namelist
	352	READ ( numnam_ref, namhsb, IOSTAT = ios, ERR = 901)
	353	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namhsb in reference namelist', lwp )
	354
	355	REWIND( numnam_cfg ) ! Namelist namhsb in configuration namelist
	356	READ ( numnam_cfg, namhsb, IOSTAT = ios, ERR = 902 )
	357	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namhsb in configuration namelist', lwp )
	358	IF(lwm) WRITE ( numond, namhsb )
	359
[6970]	360	IF(lwp) THEN
[4990]	361	WRITE(numout,*)
[6970]	362	WRITE(numout,*) 'dia_hsb_init'
	363	WRITE(numout,*) '~~~~~~~~ '
	364	WRITE(numout,*) ' check the heat and salt budgets (T) or not (F) ln_diahsb = ', ln_diahsb
[4990]	365	ENDIF
[6970]	366	!
[4990]	367	IF( .NOT. ln_diahsb ) RETURN
	368	! IF( .NOT. lk_mpp_rep ) &
	369	! CALL ctl_stop (' Your global mpp_sum if performed in single precision - 64 bits -', &
	370	! & ' whereas the global sum to be precise must be done in double precision ',&
	371	! & ' please add key_mpp_rep')
	372
	373	! ------------------- !
	374	! 1 - Allocate memory !
	375	! ------------------- !
	376	ALLOCATE( hc_loc_ini(jpi,jpj,jpk), sc_loc_ini(jpi,jpj,jpk), &
	377	& e3t_ini(jpi,jpj,jpk), surf(jpi,jpj), ssh_ini(jpi,jpj), STAT=ierror )
	378	IF( ierror > 0 ) THEN
[6970]	379	CALL ctl_stop( 'dia_hsb: unable to allocate hc_loc_ini' )
	380	RETURN
[4990]	381	ENDIF
	382
[6970]	383	IF( .NOT. lk_vvl ) THEN
	384	ALLOCATE( ssh_hc_loc_ini(jpi,jpj), ssh_sc_loc_ini(jpi,jpj), STAT=ierror )
	385	IF( ierror > 0 ) THEN
	386	CALL ctl_stop( 'dia_hsb: unable to allocate hc_loc_ini' )
	387	RETURN
	388	ENDIF
[4990]	389	ENDIF
	390
	391	! ----------------------------------------------- !
	392	! 2 - Time independant variables and file opening !
	393	! ----------------------------------------------- !
	394	surf(:,:) = e1t(:,:) * e2t(:,:) * tmask_i(:,:) ! masked surface grid cell area
[6970]	395	surf_tot = glob_sum( surf(:,:) ) ! total ocean surface area
[4990]	396
	397	IF( lk_bdy ) CALL ctl_warn( 'dia_hsb does not take open boundary fluxes into account' )
	398	!
	399	! ---------------------------------- !
	400	! 4 - initial conservation variables !
	401	! ---------------------------------- !
	402	CALL dia_hsb_rst( nit000, 'READ' ) !* read or initialize all required files
	403	!
	404	END SUBROUTINE dia_hsb_init
	405
[2148]	406	!!======================================================================
	407	END MODULE diahsb

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