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tradmp.F90 in branches/2011/DEV_r2739_STFC_dCSE/NEMOGCM/NEMO/OPA_SRC/TRA – NEMO

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source: branches/2011/DEV_r2739_STFC_dCSE/NEMOGCM/NEMO/OPA_SRC/TRA/tradmp.F90 @ 4409

Last change on this file since 4409 was 4409, checked in by trackstand2, 10 years ago
Changes to allow jpk to be modified to deepest level within a subdomain. jpkorig holds original value.
Property svn:keywords set to `Id`
File size: 39.9 KB

Rev	Line
[3]	1	MODULE tradmp
	2	!!======================================================================
	3	!! * MODULE tradmp *
	4	!! Ocean physics: internal restoring trend on active tracers (T and S)
	5	!!======================================================================
[1601]	6	!! History : OPA ! 1991-03 (O. Marti, G. Madec) Original code
	7	!! ! 1992-06 (M. Imbard) doctor norme
	8	!! ! 1996-01 (G. Madec) statement function for e3
	9	!! ! 1997-05 (G. Madec) macro-tasked on jk-slab
	10	!! ! 1998-07 (M. Imbard, G. Madec) ORCA version
	11	!! 7.0 ! 2001-02 (M. Imbard) cofdis, Original code
	12	!! 8.1 ! 2001-02 (G. Madec, E. Durand) cleaning
	13	!! NEMO 1.0 ! 2002-08 (G. Madec, E. Durand) free form + modules
	14	!! 3.2 ! 2009-08 (G. Madec, C. Talandier) DOCTOR norm for namelist parameter
[2528]	15	!! 3.3 ! 2010-06 (C. Ethe, G. Madec) merge TRA-TRC
[503]	16	!!----------------------------------------------------------------------
[32]	17	#if defined key_tradmp \|\| defined key_esopa
[3]	18	!!----------------------------------------------------------------------
[2528]	19	!! 'key_tradmp' internal damping
[3]	20	!!----------------------------------------------------------------------
[2715]	21	!! tra_dmp_alloc : allocate tradmp arrays
[2528]	22	!! tra_dmp : update the tracer trend with the internal damping
	23	!! tra_dmp_init : initialization, namlist read, parameters control
	24	!! dtacof_zoom : restoring coefficient for zoom domain
	25	!! dtacof : restoring coefficient for global domain
	26	!! cofdis : compute the distance to the coastline
[3]	27	!!----------------------------------------------------------------------
[2528]	28	USE oce ! ocean: variables
	29	USE dom_oce ! ocean: domain variables
	30	USE trdmod_oce ! ocean: trend variables
	31	USE trdtra ! active tracers: trends
	32	USE zdf_oce ! ocean: vertical physics
	33	USE phycst ! physical constants
	34	USE dtatem ! data: temperature
	35	USE dtasal ! data: salinity
	36	USE zdfmxl ! vertical physics: mixed layer depth
	37	USE in_out_manager ! I/O manager
	38	USE lib_mpp ! MPP library
	39	USE prtctl ! Print control
[3]	40
	41	IMPLICIT NONE
	42	PRIVATE
	43
[2528]	44	PUBLIC tra_dmp ! routine called by step.F90
	45	PUBLIC tra_dmp_init ! routine called by opa.F90
	46	PUBLIC dtacof ! routine called by in both tradmp.F90 and trcdmp.F90
	47	PUBLIC dtacof_zoom ! routine called by in both tradmp.F90 and trcdmp.F90
[3]	48
[392]	49	#if ! defined key_agrif
[503]	50	LOGICAL, PUBLIC, PARAMETER :: lk_tradmp = .TRUE. !: internal damping flag
	51	#else
	52	LOGICAL, PUBLIC :: lk_tradmp = .TRUE. !: internal damping flag
[389]	53	#endif
[2715]	54	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: strdmp !: damping salinity trend (psu/s)
	55	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: ttrdmp !: damping temperature trend (Celcius/s)
	56	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: resto !: restoring coeff. on T and S (s-1)
[503]	57
[2528]	58	! !!* Namelist namtra_dmp : T & S newtonian damping *
	59	INTEGER :: nn_hdmp = -1 ! = 0/-1/'latitude' for damping over T and S
	60	INTEGER :: nn_zdmp = 0 ! = 0/1/2 flag for damping in the mixed layer
	61	REAL(wp) :: rn_surf = 50._wp ! surface time scale for internal damping [days]
	62	REAL(wp) :: rn_bot = 360._wp ! bottom time scale for internal damping [days]
	63	REAL(wp) :: rn_dep = 800._wp ! depth of transition between rn_surf and rn_bot [meters]
	64	INTEGER :: nn_file = 2 ! = 1 create a damping.coeff NetCDF file
[3]	65
[3211]	66	!! * Control permutation of array indices
	67	# include "oce_ftrans.h90"
	68	# include "dom_oce_ftrans.h90"
	69	# include "zdf_oce_ftrans.h90"
	70	# include "dtatem_ftrans.h90"
	71	# include "dtasal_ftrans.h90"
	72	# include "tradmp_ftrans.h90"
	73
[3]	74	!! * Substitutions
	75	# include "domzgr_substitute.h90"
	76	# include "vectopt_loop_substitute.h90"
	77	!!----------------------------------------------------------------------
[2528]	78	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
[1152]	79	!! $Id$
[2528]	80	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[3]	81	!!----------------------------------------------------------------------
	82	CONTAINS
	83
[2715]	84	INTEGER FUNCTION tra_dmp_alloc()
	85	!!----------------------------------------------------------------------
	86	!! * FUNCTION tra_bbl_alloc *
	87	!!----------------------------------------------------------------------
	88	ALLOCATE( strdmp(jpi,jpj,jpk) , ttrdmp(jpi,jpj,jpk) , resto(jpi,jpj,jpk), STAT= tra_dmp_alloc )
	89	!
	90	IF( lk_mpp ) CALL mpp_sum ( tra_dmp_alloc )
	91	IF( tra_dmp_alloc > 0 ) CALL ctl_warn('tra_dmp_alloc: allocation of arrays failed')
	92	END FUNCTION tra_dmp_alloc
	93
	94
[3]	95	SUBROUTINE tra_dmp( kt )
	96	!!----------------------------------------------------------------------
	97	!! * ROUTINE tra_dmp *
	98	!!
	99	!! ** Purpose : Compute the tracer trend due to a newtonian damping
	100	!! of the tracer field towards given data field and add it to the
	101	!! general tracer trends.
	102	!!
	103	!! ** Method : Newtonian damping towards t_dta and s_dta computed
	104	!! and add to the general tracer trends:
	105	!! ta = ta + resto * (t_dta - tb)
	106	!! sa = sa + resto * (s_dta - sb)
	107	!! The trend is computed either throughout the water column
	108	!! (nlmdmp=0) or in area of weak vertical mixing (nlmdmp=1) or
	109	!! below the well mixed layer (nlmdmp=2)
	110	!!
[1601]	111	!! ** Action : - (ta,sa) tracer trends updated with the damping trend
[503]	112	!!----------------------------------------------------------------------
[1601]	113	INTEGER, INTENT(in) :: kt ! ocean time-step index
[503]	114	!!
[2528]	115	INTEGER :: ji, jj, jk ! dummy loop indices
	116	REAL(wp) :: zta, zsa ! local scalars
[3]	117	!!----------------------------------------------------------------------
[503]	118	!
[2528]	119	SELECT CASE ( nn_zdmp ) !== type of damping ==!
	120	!
[1601]	121	CASE( 0 ) !== newtonian damping throughout the water column ==!
[3211]	122	#if defined key_z_first
	123	DO jj = 2, jpjm1
	124	DO ji = 2, jpim1
	125	DO jk = 1, jpkm1
	126	#else
[3]	127	DO jk = 1, jpkm1
	128	DO jj = 2, jpjm1
	129	DO ji = fs_2, fs_jpim1 ! vector opt.
[3211]	130	#endif
[2528]	131	zta = resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_tem) )
	132	zsa = resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_sal) )
	133	tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta
	134	tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa
	135	strdmp(ji,jj,jk) = zsa ! save the salinity trend (used in asmtrj)
	136	ttrdmp(ji,jj,jk) = zta
[3]	137	END DO
	138	END DO
	139	END DO
[503]	140	!
[1601]	141	CASE ( 1 ) !== no damping in the turbocline (avt > 5 cm2/s) ==!
[3211]	142	#if defined key_z_first
	143	DO jj = 2, jpjm1
	144	DO ji = 2, jpim1
	145	DO jk = 1, jpkm1
	146	#else
[3]	147	DO jk = 1, jpkm1
	148	DO jj = 2, jpjm1
	149	DO ji = fs_2, fs_jpim1 ! vector opt.
[3211]	150	#endif
[2528]	151	IF( avt(ji,jj,jk) <= 5.e-4_wp ) THEN
	152	zta = resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_tem) )
	153	zsa = resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_sal) )
	154	ELSE
	155	zta = 0._wp
	156	zsa = 0._wp
[3]	157	ENDIF
[2528]	158	tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta
	159	tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa
	160	strdmp(ji,jj,jk) = zsa ! save the salinity trend (used in asmtrj)
	161	ttrdmp(ji,jj,jk) = zta
[3]	162	END DO
	163	END DO
	164	END DO
[503]	165	!
[1601]	166	CASE ( 2 ) !== no damping in the mixed layer ==!
[3211]	167	#if defined key_z_first
	168	DO jj = 2, jpjm1
	169	DO ji = 2, jpim1
	170	DO jk = 1, jpkm1
	171	#else
[3]	172	DO jk = 1, jpkm1
	173	DO jj = 2, jpjm1
	174	DO ji = fs_2, fs_jpim1 ! vector opt.
[3211]	175	#endif
[3]	176	IF( fsdept(ji,jj,jk) >= hmlp (ji,jj) ) THEN
[2528]	177	zta = resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_tem) )
	178	zsa = resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_sal) )
	179	ELSE
	180	zta = 0._wp
	181	zsa = 0._wp
[3]	182	ENDIF
[2528]	183	tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta
	184	tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa
	185	strdmp(ji,jj,jk) = zsa ! save the salinity trend (used in asmtrj)
	186	ttrdmp(ji,jj,jk) = zta
[3]	187	END DO
	188	END DO
	189	END DO
[503]	190	!
[3]	191	END SELECT
[2528]	192	!
[1601]	193	IF( l_trdtra ) THEN ! trend diagnostic
[2528]	194	CALL trd_tra( kt, 'TRA', jp_tem, jptra_trd_dmp, ttrdmp )
	195	CALL trd_tra( kt, 'TRA', jp_sal, jptra_trd_dmp, strdmp )
[216]	196	ENDIF
[1601]	197	! ! Control print
[2528]	198	IF(ln_ctl) CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' dmp - Ta: ', mask1=tmask, &
	199	& tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' )
[503]	200	!
[3]	201	END SUBROUTINE tra_dmp
	202
	203
	204	SUBROUTINE tra_dmp_init
	205	!!----------------------------------------------------------------------
	206	!! * ROUTINE tra_dmp_init *
	207	!!
	208	!! ** Purpose : Initialization for the newtonian damping
	209	!!
	210	!! ** Method : read the nammbf namelist and check the parameters
	211	!!----------------------------------------------------------------------
[1601]	212	NAMELIST/namtra_dmp/ nn_hdmp, nn_zdmp, rn_surf, rn_bot, rn_dep, nn_file
[541]	213	!!----------------------------------------------------------------------
[3]	214
[1601]	215	REWIND ( numnam ) ! Read Namelist namtra_dmp : temperature and salinity damping term
	216	READ ( numnam, namtra_dmp )
[2528]	217
	218	IF( lzoom ) nn_zdmp = 0 ! restoring to climatology at closed north or south boundaries
[3]	219
[503]	220	IF(lwp) THEN ! Namelist print
[3]	221	WRITE(numout,*)
	222	WRITE(numout,*) 'tra_dmp : T and S newtonian damping'
	223	WRITE(numout,*) '~~~~~~~'
[1601]	224	WRITE(numout,*) ' Namelist namtra_dmp : set damping parameter'
	225	WRITE(numout,*) ' T and S damping option nn_hdmp = ', nn_hdmp
	226	WRITE(numout,*) ' mixed layer damping option nn_zdmp = ', nn_zdmp, '(zoom: forced to 0)'
	227	WRITE(numout,*) ' surface time scale (days) rn_surf = ', rn_surf
	228	WRITE(numout,*) ' bottom time scale (days) rn_bot = ', rn_bot
	229	WRITE(numout,*) ' depth of transition (meters) rn_dep = ', rn_dep
	230	WRITE(numout,*) ' create a damping.coeff file nn_file = ', nn_file
[3]	231	ENDIF
	232
[2715]	233	! ! allocate tradmp arrays
	234	IF( tra_dmp_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'tra_dmp_init: unable to allocate arrays' )
	235
[1601]	236	SELECT CASE ( nn_hdmp )
	237	CASE ( -1 ) ; IF(lwp) WRITE(numout,*) ' tracer damping in the Med & Red seas only'
	238	CASE ( 1:90 ) ; IF(lwp) WRITE(numout,*) ' tracer damping poleward of', nn_hdmp, ' degrees'
[3]	239	CASE DEFAULT
[1601]	240	WRITE(ctmp1,*) ' bad flag value for nn_hdmp = ', nn_hdmp
[473]	241	CALL ctl_stop(ctmp1)
[3]	242	END SELECT
	243
[1601]	244	SELECT CASE ( nn_zdmp )
	245	CASE ( 0 ) ; IF(lwp) WRITE(numout,*) ' tracer damping throughout the water column'
	246	CASE ( 1 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the turbocline (avt > 5 cm2/s)'
	247	CASE ( 2 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the mixed layer'
[3]	248	CASE DEFAULT
[1601]	249	WRITE(ctmp1,*) 'bad flag value for nn_zdmp = ', nn_zdmp
[473]	250	CALL ctl_stop(ctmp1)
[3]	251	END SELECT
	252
[503]	253	IF( .NOT.lk_dtasal .OR. .NOT.lk_dtatem ) &
	254	& CALL ctl_stop( 'no temperature and/or salinity data define key_dtatem and key_dtasal' )
[3]	255
[2528]	256	strdmp(:,:,:) = 0._wp ! internal damping salinity trend (used in asmtrj)
	257	ttrdmp(:,:,:) = 0._wp
[503]	258	! ! Damping coefficients initialization
[2528]	259	IF( lzoom ) THEN ; CALL dtacof_zoom( resto )
	260	ELSE ; CALL dtacof( nn_hdmp, rn_surf, rn_bot, rn_dep, &
	261	& nn_file, 'TRA' , resto )
[3]	262	ENDIF
[503]	263	!
[3]	264	END SUBROUTINE tra_dmp_init
	265
	266
[2528]	267	SUBROUTINE dtacof_zoom( presto )
[3]	268	!!----------------------------------------------------------------------
	269	!! * ROUTINE dtacof_zoom *
	270	!!
	271	!! ** Purpose : Compute the damping coefficient for zoom domain
	272	!!
	273	!! ** Method : - set along closed boundary due to zoom a damping over
[1601]	274	!! 6 points with a max time scale of 5 days.
[3]	275	!! - ORCA arctic/antarctic zoom: set the damping along
[1601]	276	!! south/north boundary over a latitude strip.
[3]	277	!!
	278	!! ** Action : - resto, the damping coeff. for T and S
	279	!!----------------------------------------------------------------------
[3211]	280
	281	!! DCSE_NEMO: This style defeats ftrans
	282	! REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: presto ! restoring coeff. (s-1)
	283	!FTRANS presto :I :I :z
[4409]	284	REAL(wp), INTENT(inout) :: presto(jpi,jpj,jpkorig) ! restoring coeff. (s-1)
[2528]	285	!
	286	INTEGER :: ji, jj, jk, jn ! dummy loop indices
	287	REAL(wp) :: zlat, zlat0, zlat1, zlat2, z1_5d ! local scalar
	288	REAL(wp), DIMENSION(6) :: zfact ! 1Dworkspace
[3]	289	!!----------------------------------------------------------------------
	290
[2528]	291	zfact(1) = 1._wp
	292	zfact(2) = 1._wp
	293	zfact(3) = 11._wp / 12._wp
	294	zfact(4) = 8._wp / 12._wp
	295	zfact(5) = 4._wp / 12._wp
	296	zfact(6) = 1._wp / 12._wp
	297	zfact(:) = zfact(:) / ( 5._wp * rday ) ! 5 days max restoring time scale
[3]	298
[2528]	299	presto(:,:,:) = 0._wp
[3]	300
	301	! damping along the forced closed boundary over 6 grid-points
	302	DO jn = 1, 6
[2528]	303	IF( lzoom_w ) presto( mi0(jn+jpizoom):mi1(jn+jpizoom), : , : ) = zfact(jn) ! west closed
	304	IF( lzoom_s ) presto( : , mj0(jn+jpjzoom):mj1(jn+jpjzoom), : ) = zfact(jn) ! south closed
	305	IF( lzoom_e ) presto( mi0(jpiglo+jpizoom-1-jn):mi1(jpiglo+jpizoom-1-jn) , : , : ) = zfact(jn) ! east closed
	306	IF( lzoom_n ) presto( : , mj0(jpjglo+jpjzoom-1-jn):mj1(jpjglo+jpjzoom-1-jn) , : ) = zfact(jn) ! north closed
[3]	307	END DO
	308
[1601]	309	! ! ====================================================
	310	IF( lzoom_arct .AND. lzoom_anta ) THEN ! ORCA configuration : arctic zoom or antarctic zoom
	311	! ! ====================================================
[3]	312	IF(lwp) WRITE(numout,*)
	313	IF(lwp .AND. lzoom_arct ) WRITE(numout,*) ' dtacof_zoom : ORCA Arctic zoom'
	314	IF(lwp .AND. lzoom_arct ) WRITE(numout,*) ' dtacof_zoom : ORCA Antarctic zoom'
	315	IF(lwp) WRITE(numout,*)
[1601]	316	!
	317	! ! Initialization :
[2528]	318	presto(:,:,:) = 0._wp
	319	zlat0 = 10._wp ! zlat0 : latitude strip where resto decreases
	320	zlat1 = 30._wp ! zlat1 : resto = 1 before zlat1
	321	zlat2 = zlat1 + zlat0 ! zlat2 : resto decreases from 1 to 0 between zlat1 and zlat2
	322	z1_5d = 1._wp / ( 5._wp * rday ) ! z1_5d : 1 / 5days
[3]	323
[3211]	324	#if defined key_z_first
	325	DO jj = 1, jpj ! Compute arrays resto ; value for internal damping : 5 days
	326	DO ji = 1, jpi
	327	DO jk = 2, jpkm1
	328	#else
[1601]	329	DO jk = 2, jpkm1 ! Compute arrays resto ; value for internal damping : 5 days
[3]	330	DO jj = 1, jpj
	331	DO ji = 1, jpi
[3211]	332	#endif
[3]	333	zlat = ABS( gphit(ji,jj) )
[1601]	334	IF( zlat1 <= zlat .AND. zlat <= zlat2 ) THEN
[2528]	335	presto(ji,jj,jk) = 0.5_wp * z1_5d * ( 1._wp - COS( rpi*(zlat2-zlat)/zlat0 ) )
[1601]	336	ELSEIF( zlat < zlat1 ) THEN
[2528]	337	presto(ji,jj,jk) = z1_5d
[3]	338	ENDIF
	339	END DO
	340	END DO
	341	END DO
[503]	342	!
[3]	343	ENDIF
[1601]	344	! ! Mask resto array
[2528]	345	presto(:,:,:) = presto(:,:,:) * tmask(:,:,:)
[503]	346	!
[3]	347	END SUBROUTINE dtacof_zoom
	348
[3211]	349	!! * Reset control of array index permutation
	350	!FTRANS CLEAR
	351	# include "oce_ftrans.h90"
	352	# include "dom_oce_ftrans.h90"
	353	# include "zdf_oce_ftrans.h90"
	354	# include "dtatem_ftrans.h90"
	355	# include "dtasal_ftrans.h90"
	356	# include "tradmp_ftrans.h90"
[503]	357
[2528]	358	SUBROUTINE dtacof( kn_hdmp, pn_surf, pn_bot, pn_dep, &
	359	& kn_file, cdtype , presto )
[3]	360	!!----------------------------------------------------------------------
	361	!! * ROUTINE dtacof *
	362	!!
	363	!! ** Purpose : Compute the damping coefficient
	364	!!
	365	!! ** Method : Arrays defining the damping are computed for each grid
[1601]	366	!! point for temperature and salinity (resto)
	367	!! Damping depends on distance to coast, depth and latitude
[3]	368	!!
	369	!! ** Action : - resto, the damping coeff. for T and S
	370	!!----------------------------------------------------------------------
[473]	371	USE iom
[3]	372	USE ioipsl
[2715]	373	USE wrk_nemo, ONLY: wrk_in_use, wrk_not_released
	374	USE wrk_nemo, ONLY: zhfac => wrk_1d_1, zmrs => wrk_2d_1 , zdct => wrk_3d_1 ! 1D, 2D, 3D workspace
[3211]	375
	376	!! DCSE_NEMO: need additional directives for renamed module variables
	377	!FTRANS zdct :I :I :z
	378
[503]	379	!!
[2528]	380	INTEGER , INTENT(in ) :: kn_hdmp ! damping option
	381	REAL(wp) , INTENT(in ) :: pn_surf ! surface time scale (days)
	382	REAL(wp) , INTENT(in ) :: pn_bot ! bottom time scale (days)
	383	REAL(wp) , INTENT(in ) :: pn_dep ! depth of transition (meters)
	384	INTEGER , INTENT(in ) :: kn_file ! save the damping coef on a file or not
	385	CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator)
[3211]	386
	387	!! DCSE_NEMO: This style defeats ftrans
	388	! REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: presto ! restoring coeff. (s-1)
	389	!FTRANS presto :I :I :z
[4409]	390	REAL(wp), INTENT(inout) :: presto(jpi,jpj,jpkorig) ! restoring coeff. (s-1)
[3211]	391
[2528]	392	!
	393	INTEGER :: ji, jj, jk ! dummy loop indices
	394	INTEGER :: ii0, ii1, ij0, ij1 ! local integers
	395	INTEGER :: inum0, icot ! - -
	396	REAL(wp) :: zinfl, zlon ! local scalars
	397	REAL(wp) :: zlat, zlat0, zlat1, zlat2 ! - -
	398	REAL(wp) :: zsdmp, zbdmp ! - -
	399	CHARACTER(len=20) :: cfile
[3]	400	!!----------------------------------------------------------------------
	401
[2715]	402	IF( wrk_in_use(1, 1) .OR. &
	403	wrk_in_use(2, 1) .OR. &
	404	wrk_in_use(3, 1) ) THEN
	405	CALL ctl_stop('dtacof: requested workspace arrays unavailable') ; RETURN
	406	ENDIF
[2528]	407	! ! ====================
	408	! ! ORCA configuration : global domain
	409	! ! ====================
	410	!
[3]	411	IF(lwp) WRITE(numout,*)
	412	IF(lwp) WRITE(numout,*) ' dtacof : Global domain of ORCA'
	413	IF(lwp) WRITE(numout,*) ' ------------------------------'
[2528]	414	!
	415	presto(:,:,:) = 0._wp
	416	!
	417	IF( kn_hdmp > 0 ) THEN ! Damping poleward of 'nn_hdmp' degrees !
[1601]	418	! !-----------------------------------------!
[3]	419	IF(lwp) WRITE(numout,*)
[2528]	420	IF(lwp) WRITE(numout,*) ' Damping poleward of ', kn_hdmp, ' deg.'
[1601]	421	!
[1217]	422	CALL iom_open ( 'dist.coast.nc', icot, ldstop = .FALSE. )
[1601]	423	!
	424	IF( icot > 0 ) THEN ! distance-to-coast read in file
	425	CALL iom_get ( icot, jpdom_data, 'Tcoast', zdct )
	426	CALL iom_close( icot )
	427	ELSE ! distance-to-coast computed and saved in file (output in zdct)
[473]	428	CALL cofdis( zdct )
[3]	429	ENDIF
	430
[1601]	431	! ! Compute arrays resto
[2528]	432	zinfl = 1000.e3_wp ! distance of influence for damping term
	433	zlat0 = 10._wp ! latitude strip where resto decreases
	434	zlat1 = REAL( kn_hdmp ) ! resto = 0 between -zlat1 and zlat1
[1601]	435	zlat2 = zlat1 + zlat0 ! resto increases from 0 to 1 between \|zlat1\| and \|zlat2\|
[3]	436
	437	DO jj = 1, jpj
	438	DO ji = 1, jpi
	439	zlat = ABS( gphit(ji,jj) )
	440	IF ( zlat1 <= zlat .AND. zlat <= zlat2 ) THEN
[2528]	441	presto(ji,jj,1) = 0.5_wp * ( 1._wp - COS( rpi*(zlat-zlat1)/zlat0 ) )
[3]	442	ELSEIF ( zlat > zlat2 ) THEN
[2528]	443	presto(ji,jj,1) = 1._wp
[3]	444	ENDIF
	445	END DO
	446	END DO
	447
[2528]	448	IF ( kn_hdmp == 20 ) THEN ! North Indian ocean (20N/30N x 45E/100E) : resto=0
[3]	449	DO jj = 1, jpj
	450	DO ji = 1, jpi
	451	zlat = gphit(ji,jj)
[2528]	452	zlon = MOD( glamt(ji,jj), 360._wp )
	453	IF ( zlat1 < zlat .AND. zlat < zlat2 .AND. 45._wp < zlon .AND. zlon < 100._wp ) THEN
	454	presto(ji,jj,1) = 0._wp
[3]	455	ENDIF
	456	END DO
	457	END DO
	458	ENDIF
	459
[2528]	460	zsdmp = 1._wp / ( pn_surf * rday )
	461	zbdmp = 1._wp / ( pn_bot * rday )
[3211]	462	#if defined key_z_first
	463	DO jj = 1, jpj
	464	DO ji = 1, jpi
	465	DO jk = 2, jpkm1
	466	#else
[3]	467	DO jk = 2, jpkm1
	468	DO jj = 1, jpj
	469	DO ji = 1, jpi
[3211]	470	#endif
[61]	471	zdct(ji,jj,jk) = MIN( zinfl, zdct(ji,jj,jk) )
[3]	472	! ... Decrease the value in the vicinity of the coast
[2528]	473	presto(ji,jj,jk) = presto(ji,jj,1 ) * 0.5_wp * ( 1._wp - COS( rpi*zdct(ji,jj,jk)/zinfl) )
[3]	474	! ... Vertical variation from zsdmp (sea surface) to zbdmp (bottom)
[2528]	475	presto(ji,jj,jk) = presto(ji,jj,jk) * ( zbdmp + (zsdmp-zbdmp) * EXP(-fsdept(ji,jj,jk)/pn_dep) )
[3]	476	END DO
	477	END DO
	478	END DO
[503]	479	!
[3]	480	ENDIF
	481
[2528]	482	! ! =========================
	483	! ! Med and Red Sea damping (ORCA configuration only)
	484	! ! =========================
	485	IF( cp_cfg == "orca" .AND. ( kn_hdmp > 0 .OR. kn_hdmp == -1 ) ) THEN
[3]	486	IF(lwp)WRITE(numout,*)
	487	IF(lwp)WRITE(numout,*) ' ORCA configuration: Damping in Med and Red Seas'
[2528]	488	!
	489	zmrs(:,:) = 0._wp
	490	!
[3]	491	SELECT CASE ( jp_cfg )
	492	! ! =======================
	493	CASE ( 4 ) ! ORCA_R4 configuration
	494	! ! =======================
[2528]	495	ij0 = 50 ; ij1 = 56 ! Mediterranean Sea
	496
	497	ii0 = 81 ; ii1 = 91 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
[32]	498	ij0 = 50 ; ij1 = 55
[2528]	499	ii0 = 75 ; ii1 = 80 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
[32]	500	ij0 = 52 ; ij1 = 53
[2528]	501	ii0 = 70 ; ii1 = 74 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
[3]	502	! Smooth transition from 0 at surface to 1./rday at the 18th level in Med and Red Sea
	503	DO jk = 1, 17
[2528]	504	zhfac (jk) = 0.5_wp * ( 1._wp - COS( rpi * REAL(jk-1,wp) / 16._wp ) ) / rday
[3]	505	END DO
	506	DO jk = 18, jpkm1
[2528]	507	zhfac (jk) = 1._wp / rday
[3]	508	END DO
	509	! ! =======================
	510	CASE ( 2 ) ! ORCA_R2 configuration
	511	! ! =======================
[2528]	512	ij0 = 96 ; ij1 = 110 ! Mediterranean Sea
	513	ii0 = 157 ; ii1 = 181 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
[32]	514	ij0 = 100 ; ij1 = 110
[2528]	515	ii0 = 144 ; ii1 = 156 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
[32]	516	ij0 = 100 ; ij1 = 103
[2528]	517	ii0 = 139 ; ii1 = 143 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
	518	!
	519	ij0 = 101 ; ij1 = 102 ! Decrease before Gibraltar Strait
	520	ii0 = 139 ; ii1 = 141 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0._wp
	521	ii0 = 142 ; ii1 = 142 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp / 90._wp
	522	ii0 = 143 ; ii1 = 143 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40_wp
	523	ii0 = 144 ; ii1 = 144 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.75_wp
	524	!
	525	ij0 = 87 ; ij1 = 96 ! Red Sea
	526	ii0 = 147 ; ii1 = 163 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
	527	!
	528	ij0 = 91 ; ij1 = 91 ! Decrease before Bab el Mandeb Strait
	529	ii0 = 153 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.80_wp
[32]	530	ij0 = 90 ; ij1 = 90
[2528]	531	ii0 = 153 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40_wp
[32]	532	ij0 = 89 ; ij1 = 89
[2528]	533	ii0 = 158 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp / 90._wp
[32]	534	ij0 = 88 ; ij1 = 88
[2528]	535	ii0 = 160 ; ii1 = 163 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0._wp
[3]	536	! Smooth transition from 0 at surface to 1./rday at the 18th level in Med and Red Sea
	537	DO jk = 1, 17
[2528]	538	zhfac (jk) = 0.5_wp * ( 1._wp - COS( rpi * REAL(jk-1,wp) / 16._wp ) ) / rday
[3]	539	END DO
	540	DO jk = 18, jpkm1
[2528]	541	zhfac (jk) = 1._wp / rday
[3]	542	END DO
	543	! ! =======================
	544	CASE ( 05 ) ! ORCA_R05 configuration
	545	! ! =======================
[2528]	546	ii0 = 568 ; ii1 = 574 ! Mediterranean Sea
	547	ij0 = 324 ; ij1 = 333 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
[61]	548	ii0 = 575 ; ii1 = 658
[2528]	549	ij0 = 314 ; ij1 = 366 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
	550	!
	551	ii0 = 641 ; ii1 = 651 ! Black Sea (remaining part
	552	ij0 = 367 ; ij1 = 372 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
	553	!
	554	ij0 = 324 ; ij1 = 333 ! Decrease before Gibraltar Strait
	555	ii0 = 565 ; ii1 = 565 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp / 90._wp
	556	ii0 = 566 ; ii1 = 566 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40_wp
	557	ii0 = 567 ; ii1 = 567 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.75_wp
	558	!
	559	ii0 = 641 ; ii1 = 665 ! Red Sea
	560	ij0 = 270 ; ij1 = 310 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1._wp
	561	!
	562	ii0 = 666 ; ii1 = 675 ! Decrease before Bab el Mandeb Strait
[3]	563	ij0 = 270 ; ij1 = 290
	564	DO ji = mi0(ii0), mi1(ii1)
[2528]	565	zmrs( ji , mj0(ij0):mj1(ij1) ) = 0.1_wp * ABS( FLOAT(ji - mi1(ii1)) )
[3]	566	END DO
[2528]	567	zsdmp = 1._wp / ( pn_surf * rday )
	568	zbdmp = 1._wp / ( pn_bot * rday )
[3]	569	DO jk = 1, jpk
[2528]	570	zhfac(jk) = ( zbdmp + (zsdmp-zbdmp) * EXP( -fsdept(1,1,jk)/pn_dep ) )
[3]	571	END DO
	572	! ! ========================
	573	CASE ( 025 ) ! ORCA_R025 configuration
	574	! ! ========================
[473]	575	CALL ctl_stop( ' Not yet implemented in ORCA_R025' )
[503]	576	!
[3]	577	END SELECT
	578
[3211]	579	#if defined key_z_first
	580	DO jj = 1, jpj
	581	DO ji = 1, jpi
	582	DO jk = 1, jpkm1
	583	presto(ji,jj,jk) = zmrs(ji,jj) * zhfac(jk) + ( 1._wp - zmrs(ji,jj) ) * presto(ji,jj,jk)
	584	END DO
	585	END DO
	586	END DO
	587	#else
[3]	588	DO jk = 1, jpkm1
[2528]	589	presto(:,:,jk) = zmrs(:,:) * zhfac(jk) + ( 1._wp - zmrs(:,:) ) * presto(:,:,jk)
[3]	590	END DO
[3211]	591	#endif
[3]	592
	593	! Mask resto array and set to 0 first and last levels
[2528]	594	presto(:,:, : ) = presto(:,:,:) * tmask(:,:,:)
	595	presto(:,:, 1 ) = 0._wp
	596	presto(:,:,jpk) = 0._wp
[1601]	597	! !--------------------!
	598	ELSE ! No damping !
	599	! !--------------------!
	600	CALL ctl_stop( 'Choose a correct value of nn_hdmp or DO NOT defined key_tradmp' )
[3]	601	ENDIF
	602
[1601]	603	! !--------------------------------!
[2528]	604	IF( kn_file == 1 ) THEN ! save damping coef. in a file !
[1601]	605	! !--------------------------------!
[3]	606	IF(lwp) WRITE(numout,*) ' create damping.coeff.nc file'
[2528]	607	IF( cdtype == 'TRA' ) cfile = 'damping.coeff'
	608	IF( cdtype == 'TRC' ) cfile = 'damping.coeff.trc'
	609	cfile = TRIM( cfile )
	610	CALL iom_open ( cfile, inum0, ldwrt = .TRUE., kiolib = jprstlib )
	611	CALL iom_rstput( 0, 0, inum0, 'Resto', presto )
[1415]	612	CALL iom_close ( inum0 )
[3]	613	ENDIF
[503]	614	!
[2715]	615	IF( wrk_not_released(1, 1) .OR. &
	616	wrk_not_released(2, 1) .OR. &
	617	wrk_not_released(3, 1) ) CALL ctl_stop('dtacof: failed to release workspace arrays')
	618	!
[3]	619	END SUBROUTINE dtacof
	620
[3211]	621	!! * Reset control of array index permutation
	622	!FTRANS CLEAR
	623	# include "oce_ftrans.h90"
	624	# include "dom_oce_ftrans.h90"
	625	# include "zdf_oce_ftrans.h90"
	626	# include "dtatem_ftrans.h90"
	627	# include "dtasal_ftrans.h90"
	628	# include "tradmp_ftrans.h90"
[3]	629
[473]	630	SUBROUTINE cofdis( pdct )
[3]	631	!!----------------------------------------------------------------------
	632	!! * ROUTINE cofdis *
	633	!!
	634	!! ** Purpose : Compute the distance between ocean T-points and the
	635	!! ocean model coastlines. Save the distance in a NetCDF file.
	636	!!
	637	!! ** Method : For each model level, the distance-to-coast is
	638	!! computed as follows :
	639	!! - The coastline is defined as the serie of U-,V-,F-points
	640	!! that are at the ocean-land bound.
	641	!! - For each ocean T-point, the distance-to-coast is then
	642	!! computed as the smallest distance (on the sphere) between the
	643	!! T-point and all the coastline points.
	644	!! - For land T-points, the distance-to-coast is set to zero.
	645	!! C A U T I O N : Computation not yet implemented in mpp case.
	646	!!
	647	!! ** Action : - pdct, distance to the coastline (argument)
	648	!! - NetCDF file 'dist.coast.nc'
	649	!!----------------------------------------------------------------------
[3211]	650	USE ioipsl ! IOipsl library
[2715]	651	USE wrk_nemo, ONLY: wrk_in_use, wrk_not_released
	652	USE wrk_nemo, ONLY: zxt => wrk_2d_1 , zyt => wrk_2d_2 , zzt => wrk_2d_3, zmask => wrk_2d_4
[503]	653	!!
[3211]	654
	655	!! DCSE_NEMO: This style defeats ftrans
	656	! REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT( out ) :: pdct ! distance to the coastline
	657	!FTRANS pdct :I :I :z
[4409]	658	REAL(wp), DIMENSION(jpi,jpj,jpkorig), INTENT( out ) :: pdct ! distance to the coastline
[3211]	659
[503]	660	!!
[2715]	661	INTEGER :: ji, jj, jk, jl ! dummy loop indices
	662	INTEGER :: iju, ijt, icoast, itime, ierr, icot ! local integers
	663	CHARACTER (len=32) :: clname ! local name
	664	REAL(wp) :: zdate0 ! local scalar
	665	LOGICAL , ALLOCATABLE, DIMENSION(:,:) :: llcotu, llcotv, llcotf ! 2D logical workspace
	666	REAL(wp), ALLOCATABLE, DIMENSION(:) :: zxc, zyc, zzc, zdis ! temporary workspace
[3]	667	!!----------------------------------------------------------------------
	668
[2715]	669	IF( wrk_in_use(2, 1,2,3,4) .OR. &
	670	wrk_in_use(1, 1,2,3,4) ) THEN
	671	CALL ctl_stop('cofdis: requested workspace arrays unavailable') ; RETURN
	672	ENDIF
	673
	674	ALLOCATE( llcotu(jpi,jpj) , llcotv(jpi,jpj) , llcotf(jpi,jpj) , &
	675	& zxc (3jpijpj) , zyc (3jpijpj) , zzc (3jpijpj) , zdis (3jpijpj) , STAT=ierr )
	676	IF( lk_mpp ) CALL mpp_sum( ierr )
	677	IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'cofdis: requested local arrays unavailable')
	678
[3]	679	! 0. Initialization
	680	! -----------------
	681	IF(lwp) WRITE(numout,*)
	682	IF(lwp) WRITE(numout,*) 'cofdis : compute the distance to coastline'
	683	IF(lwp) WRITE(numout,*) '~~~~~~'
	684	IF(lwp) WRITE(numout,*)
[473]	685	IF( lk_mpp ) &
	686	& CALL ctl_stop(' Computation not yet implemented with key_mpp_...', &
	687	& ' Rerun the code on another computer or ', &
	688	& ' create the "dist.coast.nc" file using IDL' )
[3]	689
[2528]	690	pdct(:,:,:) = 0._wp
	691	zxt(:,:) = COS( rad * gphit(:,:) ) * COS( rad * glamt(:,:) )
	692	zyt(:,:) = COS( rad * gphit(:,:) ) * SIN( rad * glamt(:,:) )
	693	zzt(:,:) = SIN( rad * gphit(:,:) )
[3]	694
	695
	696	! 1. Loop on vertical levels
	697	! --------------------------
	698	! ! ===============
	699	DO jk = 1, jpkm1 ! Horizontal slab
	700	! ! ===============
	701	! Define the coastline points (U, V and F)
	702	DO jj = 2, jpjm1
	703	DO ji = 2, jpim1
[163]	704	zmask(ji,jj) = ( tmask(ji,jj+1,jk) + tmask(ji+1,jj+1,jk) &
	705	& + tmask(ji,jj ,jk) + tmask(ji+1,jj ,jk) )
[2528]	706	llcotu(ji,jj) = ( tmask(ji,jj, jk) + tmask(ji+1,jj ,jk) == 1._wp )
	707	llcotv(ji,jj) = ( tmask(ji,jj ,jk) + tmask(ji ,jj+1,jk) == 1._wp )
	708	llcotf(ji,jj) = ( zmask(ji,jj) > 0._wp ) .AND. ( zmask(ji,jj) < 4._wp )
[3]	709	END DO
	710	END DO
	711
	712	! Lateral boundaries conditions
	713	llcotu(:, 1 ) = umask(:, 2 ,jk) == 1
	714	llcotu(:,jpj) = umask(:,jpjm1,jk) == 1
	715	llcotv(:, 1 ) = vmask(:, 2 ,jk) == 1
	716	llcotv(:,jpj) = vmask(:,jpjm1,jk) == 1
	717	llcotf(:, 1 ) = fmask(:, 2 ,jk) == 1
	718	llcotf(:,jpj) = fmask(:,jpjm1,jk) == 1
	719
	720	IF( nperio == 1 .OR. nperio == 4 .OR. nperio == 6 ) THEN
	721	llcotu( 1 ,:) = llcotu(jpim1,:)
	722	llcotu(jpi,:) = llcotu( 2 ,:)
	723	llcotv( 1 ,:) = llcotv(jpim1,:)
	724	llcotv(jpi,:) = llcotv( 2 ,:)
	725	llcotf( 1 ,:) = llcotf(jpim1,:)
	726	llcotf(jpi,:) = llcotf( 2 ,:)
	727	ELSE
	728	llcotu( 1 ,:) = umask( 2 ,:,jk) == 1
	729	llcotu(jpi,:) = umask(jpim1,:,jk) == 1
	730	llcotv( 1 ,:) = vmask( 2 ,:,jk) == 1
	731	llcotv(jpi,:) = vmask(jpim1,:,jk) == 1
	732	llcotf( 1 ,:) = fmask( 2 ,:,jk) == 1
	733	llcotf(jpi,:) = fmask(jpim1,:,jk) == 1
	734	ENDIF
	735	IF( nperio == 3 .OR. nperio == 4 ) THEN
	736	DO ji = 1, jpim1
	737	iju = jpi - ji + 1
	738	llcotu(ji,jpj ) = llcotu(iju,jpj-2)
[473]	739	llcotf(ji,jpjm1) = llcotf(iju,jpj-2)
[3]	740	llcotf(ji,jpj ) = llcotf(iju,jpj-3)
	741	END DO
[473]	742	DO ji = jpi/2, jpim1
[3]	743	iju = jpi - ji + 1
	744	llcotu(ji,jpjm1) = llcotu(iju,jpjm1)
	745	END DO
	746	DO ji = 2, jpi
	747	ijt = jpi - ji + 2
[473]	748	llcotv(ji,jpjm1) = llcotv(ijt,jpj-2)
[3]	749	llcotv(ji,jpj ) = llcotv(ijt,jpj-3)
	750	END DO
	751	ENDIF
	752	IF( nperio == 5 .OR. nperio == 6 ) THEN
	753	DO ji = 1, jpim1
	754	iju = jpi - ji
[473]	755	llcotu(ji,jpj ) = llcotu(iju,jpjm1)
[3]	756	llcotf(ji,jpj ) = llcotf(iju,jpj-2)
	757	END DO
[473]	758	DO ji = jpi/2, jpim1
[3]	759	iju = jpi - ji
	760	llcotf(ji,jpjm1) = llcotf(iju,jpjm1)
	761	END DO
	762	DO ji = 1, jpi
	763	ijt = jpi - ji + 1
[473]	764	llcotv(ji,jpj ) = llcotv(ijt,jpjm1)
[3]	765	END DO
	766	DO ji = jpi/2+1, jpi
	767	ijt = jpi - ji + 1
	768	llcotv(ji,jpjm1) = llcotv(ijt,jpjm1)
	769	END DO
	770	ENDIF
	771
	772	! Compute cartesian coordinates of coastline points
	773	! and the number of coastline points
	774	icoast = 0
	775	DO jj = 1, jpj
	776	DO ji = 1, jpi
	777	IF( llcotf(ji,jj) ) THEN
	778	icoast = icoast + 1
	779	zxc(icoast) = COS( radgphif(ji,jj) ) COS( rad*glamf(ji,jj) )
	780	zyc(icoast) = COS( radgphif(ji,jj) ) SIN( rad*glamf(ji,jj) )
	781	zzc(icoast) = SIN( rad*gphif(ji,jj) )
	782	ENDIF
	783	IF( llcotu(ji,jj) ) THEN
	784	icoast = icoast+1
	785	zxc(icoast) = COS( radgphiu(ji,jj) ) COS( rad*glamu(ji,jj) )
	786	zyc(icoast) = COS( radgphiu(ji,jj) ) SIN( rad*glamu(ji,jj) )
	787	zzc(icoast) = SIN( rad*gphiu(ji,jj) )
	788	ENDIF
	789	IF( llcotv(ji,jj) ) THEN
	790	icoast = icoast+1
	791	zxc(icoast) = COS( radgphiv(ji,jj) ) COS( rad*glamv(ji,jj) )
	792	zyc(icoast) = COS( radgphiv(ji,jj) ) SIN( rad*glamv(ji,jj) )
	793	zzc(icoast) = SIN( rad*gphiv(ji,jj) )
	794	ENDIF
	795	END DO
	796	END DO
	797
	798	! Distance for the T-points
	799	DO jj = 1, jpj
	800	DO ji = 1, jpi
[2528]	801	IF( tmask(ji,jj,jk) == 0._wp ) THEN
	802	pdct(ji,jj,jk) = 0._wp
[3]	803	ELSE
	804	DO jl = 1, icoast
	805	zdis(jl) = ( zxt(ji,jj) - zxc(jl) )**2 &
[503]	806	& + ( zyt(ji,jj) - zyc(jl) )**2 &
	807	& + ( zzt(ji,jj) - zzc(jl) )**2
[3]	808	END DO
	809	pdct(ji,jj,jk) = ra * SQRT( MINVAL( zdis(1:icoast) ) )
	810	ENDIF
	811	END DO
	812	END DO
	813	! ! ===============
	814	END DO ! End of slab
	815	! ! ===============
	816
	817
	818	! 2. Create the distance to the coast file in NetCDF format
	819	! ----------------------------------------------------------
	820	clname = 'dist.coast'
[2528]	821	itime = 0
	822	CALL ymds2ju( 0 , 1 , 1 , 0._wp , zdate0 )
[473]	823	CALL restini( 'NONE', jpi , jpj , glamt, gphit , &
[503]	824	& jpk , gdept_0, clname, itime, zdate0, &
	825	& rdt , icot )
[3]	826	CALL restput( icot, 'Tcoast', jpi, jpj, jpk, 0, pdct )
	827	CALL restclo( icot )
[2528]	828	!
[2715]	829	IF( wrk_not_released(2, 1,2,3,4) .OR. &
	830	wrk_not_released(1, 1,2,3,4) ) CALL ctl_stop('cofdis: failed to release workspace arrays')
	831	DEALLOCATE( llcotu , llcotv , llcotf , &
	832	& zxc , zyc , zzc , zdis )
	833	!
[3]	834	END SUBROUTINE cofdis
	835
	836	#else
	837	!!----------------------------------------------------------------------
	838	!! Default key NO internal damping
	839	!!----------------------------------------------------------------------
[32]	840	LOGICAL , PUBLIC, PARAMETER :: lk_tradmp = .FALSE. !: internal damping flag
[3]	841	CONTAINS
	842	SUBROUTINE tra_dmp( kt ) ! Empty routine
[32]	843	WRITE(,) 'tra_dmp: You should not have seen this print! error?', kt
[3]	844	END SUBROUTINE tra_dmp
[2528]	845	SUBROUTINE tra_dmp_init ! Empty routine
	846	END SUBROUTINE tra_dmp_init
[3]	847	#endif
	848
	849	!!======================================================================
	850	END MODULE tradmp

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