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limrhg_2.F90 @ 13354

Last change on this file since 13354 was 6486, checked in by davestorkey, 8 years ago
Remove SVN keywords from UKMO/dev_r5518_GO6_package branch.
File size: 35.8 KB

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[821]	1	MODULE limrhg_2
[3]	2	!!======================================================================
[821]	3	!! * MODULE limrhg_2 *
[3]	4	!! Ice rheology : performs sea ice rheology
	5	!!======================================================================
[2528]	6	!! History : 0.0 ! 1993-12 (M.A. Morales Maqueda.) Original code
	7	!! 1.0 ! 1994-12 (H. Goosse)
	8	!! 2.0 ! 2003-12 (C. Ethe, G. Madec) F90, mpp
	9	!! - ! 2006-08 (G. Madec) surface module, ice-stress at I-point
	10	!! - ! 2009-09 (G. Madec) Huge verctor optimisation
	11	!! 3.3 ! 2009-05 (G.Garric, C. Bricaud) addition of the lim2_evp case
[888]	12	!!----------------------------------------------------------------------
[2528]	13	#if defined key_lim2 && defined key_lim2_vp
[3]	14	!!----------------------------------------------------------------------
[2528]	15	!! 'key_lim2' AND LIM-2 sea-ice model
	16	!! 'key_lim2_vp' VP ice rheology
[77]	17	!!----------------------------------------------------------------------
[821]	18	!! lim_rhg_2 : computes ice velocities
[3]	19	!!----------------------------------------------------------------------
[888]	20	USE par_oce ! ocean parameter
[1711]	21	USE dom_oce ! ocean space and time domain
	22	USE sbc_oce ! surface boundary condition: ocean variables
[888]	23	USE sbc_ice ! surface boundary condition: ice variables
[2528]	24	USE dom_ice_2 ! LIM2: ice domain
[888]	25	USE phycst ! physical constant
[2528]	26	USE ice_2 ! LIM2: ice variables
	27	USE lbclnk ! lateral boundary condition - MPP exchanges
[888]	28	USE lib_mpp ! MPP library
[3294]	29	USE wrk_nemo ! work arrays
[888]	30	USE in_out_manager ! I/O manager
	31	USE prtctl ! Print control
[3625]	32	USE oce , ONLY : snwice_mass, snwice_mass_b
	33	USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined)
[3680]	34	#if defined key_agrif
	35	USE agrif_lim2_interp ! nesting
	36	#endif
[3]	37
	38	IMPLICIT NONE
	39	PRIVATE
	40
[2715]	41	PUBLIC lim_rhg_2 ! routine called by lim_dyn
[3]	42
[2528]	43	REAL(wp) :: rzero = 0._wp ! constant value: zero
	44	REAL(wp) :: rone = 1._wp ! and one
[888]	45
	46	!! * Substitutions
	47	# include "vectopt_loop_substitute.h90"
[3]	48	!!----------------------------------------------------------------------
[2528]	49	!! NEMO/LIM2 3.3 , UCL - NEMO Consortium (2010)
[1156]	50	!! $Id$
[2528]	51	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[3]	52	!!----------------------------------------------------------------------
	53	CONTAINS
	54
[821]	55	SUBROUTINE lim_rhg_2( k_j1, k_jpj )
[3]	56	!!-------------------------------------------------------------------
[821]	57	!! * SUBROUTINR lim_rhg_2 *
[77]	58	!!
[12]	59	!! ** purpose : determines the velocity field of sea ice by using
	60	!! atmospheric (wind stress) and oceanic (water stress and surface
	61	!! tilt) forcings. Ice-ice interaction is described by a non-linear
[391]	62	!! viscous-plastic law including shear strength and a bulk rheology.
[3]	63	!!
[1470]	64	!! ** Action : - compute u_ice, v_ice the sea-ice velocity defined
[888]	65	!! at I-point
	66	!!-------------------------------------------------------------------
	67	INTEGER, INTENT(in) :: k_j1 ! southern j-index for ice computation
	68	INTEGER, INTENT(in) :: k_jpj ! northern j-index for ice computation
[719]	69	!!
[12]	70	INTEGER :: ji, jj ! dummy loop indices
[888]	71	INTEGER :: iter, jter ! temporary integers
	72	CHARACTER (len=50) :: charout
[2528]	73	REAL(wp) :: ze11 , ze12 , ze22 , ze21 ! local scalars
	74	REAL(wp) :: zt11 , zt12 , zt21 , zt22 ! - -
	75	REAL(wp) :: zvis11, zvis21, zvis12, zvis22 ! - -
	76	REAL(wp) :: zgphsx, ztagnx, zgsshx, zunw, zur, zusw ! - -
	77	REAL(wp) :: zgphsy, ztagny, zgsshy, zvnw, zvr ! - -
[888]	78	REAL(wp) :: zresm, za, zac, zmod
	79	REAL(wp) :: zmpzas, zstms, zindu, zusdtp, zmassdt, zcorlal
	80	REAL(wp) :: ztrace2, zdeter, zdelta, zmask, zdgp, zdgi, zdiag
	81	REAL(wp) :: za1, zb1, zc1, zd1
	82	REAL(wp) :: za2, zb2, zc2, zd2, zden
	83	REAL(wp) :: zs11_11, zs11_12, zs11_21, zs11_22
	84	REAL(wp) :: zs12_11, zs12_12, zs12_21, zs12_22
	85	REAL(wp) :: zs21_11, zs21_12, zs21_21, zs21_22
	86	REAL(wp) :: zs22_11, zs22_12, zs22_21, zs22_22
[3625]	87	REAL(wp) :: zintb, zintn
[3294]	88	REAL(wp), POINTER, DIMENSION(:,:) :: zfrld, zmass, zcorl
	89	REAL(wp), POINTER, DIMENSION(:,:) :: za1ct, za2ct, zresr
	90	REAL(wp), POINTER, DIMENSION(:,:) :: zc1u, zc1v, zc2u, zc2v
[3625]	91	REAL(wp), POINTER, DIMENSION(:,:) :: zsang, zpice
[3294]	92	REAL(wp), POINTER, DIMENSION(:,:) :: zu0, zv0
	93	REAL(wp), POINTER, DIMENSION(:,:) :: zu_n, zv_n
	94	REAL(wp), POINTER, DIMENSION(:,:) :: zu_a, zv_a
	95	REAL(wp), POINTER, DIMENSION(:,:) :: zviszeta, zviseta
	96	REAL(wp), POINTER, DIMENSION(:,:) :: zzfrld, zztms
	97	REAL(wp), POINTER, DIMENSION(:,:) :: zi1, zi2, zmasst, zpresh
[888]	98	!!-------------------------------------------------------------------
[3]	99
[3294]	100	CALL wrk_alloc( jpi,jpj, zfrld, zmass, zcorl, za1ct, za2ct, zresr )
[3625]	101	CALL wrk_alloc( jpi,jpj, zc1u , zc1v , zc2u , zc2v , zsang, zpice )
[3294]	102	CALL wrk_alloc( jpi,jpj+2, zu0, zv0, zu_n, zv_n, zu_a, zv_a, zviszeta, zviseta, kjstart = 0 )
	103	CALL wrk_alloc( jpi,jpj+2, zzfrld, zztms, zi1, zi2, zmasst, zpresh, kjstart = 0 )
	104
[77]	105	! Store initial velocities
[888]	106	! ----------------
[2528]	107	zztms(:,0 ) = 0._wp ; zzfrld(:,0 ) = 0._wp
	108	zztms(:,jpj+1) = 0._wp ; zzfrld(:,jpj+1) = 0._wp
	109	zu0 (:,0 ) = 0._wp ; zv0 (:,0 ) = 0._wp
	110	zu0 (:,jpj+1) = 0._wp ; zv0 (:,jpj+1) = 0._wp
	111	zztms(:,1:jpj) = tms (:,:) ; zzfrld(:,1:jpj) = frld (:,:)
	112	zu0 (:,1:jpj) = u_ice(:,:) ; zv0 (:,1:jpj) = v_ice(:,:)
	113	zu_a (:, : ) = zu0 (:,:) ; zv_a (:, : ) = zv0 (:,:)
	114	zu_n (:, : ) = zu0 (:,:) ; zv_n (:, : ) = zv0 (:,:)
[3]	115
[888]	116	!i
[2528]	117	zi1 (:,:) = 0._wp
	118	zi2 (:,:) = 0._wp
	119	zpresh(:,:) = 0._wp
	120	zmasst(:,:) = 0._wp
[888]	121	!i
	122	!!gm violant
[2528]	123	zfrld(:,:) =0._wp
	124	zcorl(:,:) =0._wp
	125	zmass(:,:) =0._wp
	126	za1ct(:,:) =0._wp
	127	za2ct(:,:) =0._wp
[888]	128	!!gm end
	129
[2528]	130	zviszeta(:,:) = 0._wp
	131	zviseta (:,:) = 0._wp
[888]	132
[2528]	133	!i zviszeta(:,0 ) = 0._wp ; zviseta(:,0 ) = 0._wp
	134	!i zviszeta(:,jpj ) = 0._wp ; zviseta(:,jpj ) = 0._wp
	135	!i zviszeta(:,jpj+1) = 0._wp ; zviseta(:,jpj+1) = 0._wp
[888]	136
[3625]	137	IF( nn_ice_embd == 2 ) THEN !== embedded sea ice: compute representative ice top surface ==!
	138	!
	139	! average interpolation coeff as used in dynspg = (1/nn_fsbc) * {SUM[n/nn_fsbc], n=0,nn_fsbc-1}
	140	! = (1/nn_fsbc)^2 * {SUM[n], n=0,nn_fsbc-1}
	141	zintn = REAL( nn_fsbc - 1 ) / REAL( nn_fsbc ) * 0.5_wp
	142	!
	143	! average interpolation coeff as used in dynspg = (1/nn_fsbc) * {SUM[1-n/nn_fsbc], n=0,nn_fsbc-1}
	144	! = (1/nn_fsbc)^2 * (nn_fsbc^2 - {SUM[n], n=0,nn_fsbc-1})
	145	zintb = REAL( nn_fsbc + 1 ) / REAL( nn_fsbc ) * 0.5_wp
	146	!
	147	zpice(:,:) = ssh_m(:,:) + ( zintn * snwice_mass(:,:) + zintb * snwice_mass_b(:,:) ) * r1_rau0
	148	!
	149	!
	150	ELSE !== non-embedded sea ice: use ocean surface for slope calculation ==!
	151	zpice(:,:) = ssh_m(:,:)
	152	ENDIF
[3680]	153	#if defined key_agrif
	154	! load the boundary value of velocity in special array zuive and zvice
	155	CALL agrif_rhg_lim2_load
	156	#endif
[888]	157
[717]	158	! Ice mass, ice strength, and wind stress at the center \|
	159	! of the grid squares. \|
[77]	160	!-------------------------------------------------------------------
[3]	161
[888]	162	!CDIR NOVERRCHK
[77]	163	DO jj = k_j1 , k_jpj-1
[888]	164	!CDIR NOVERRCHK
[3]	165	DO ji = 1 , jpi
[888]	166	! only the sinus changes its sign with the hemisphere
[2528]	167	zsang(ji,jj) = SIGN( 1._wp, fcor(ji,jj) ) * sangvg ! only the sinus changes its sign with the hemisphere
[888]	168	!
	169	zmasst(ji,jj) = tms(ji,jj) * ( rhosn * hsnm(ji,jj) + rhoic * hicm(ji,jj) )
[3]	170	zpresh(ji,jj) = tms(ji,jj) * pstarh * hicm(ji,jj) * EXP( -c_rhg * frld(ji,jj) )
[888]	171	!!gm :: stress given at I-point (F-point for the ocean) only compute the ponderation with the ice fraction (1-frld)
[2528]	172	zi1(ji,jj) = tms(ji,jj) * ( 1._wp - frld(ji,jj) )
	173	zi2(ji,jj) = tms(ji,jj) * ( 1._wp - frld(ji,jj) )
[3]	174	END DO
	175	END DO
	176
[717]	177
[3]	178	!---------------------------------------------------------------------------
[717]	179	! Wind stress, coriolis and mass terms at the corners of the grid squares \|
	180	! Gradient of ice strenght. \|
	181	!---------------------------------------------------------------------------
[3]	182
[77]	183	DO jj = k_j1+1, k_jpj-1
[1774]	184	DO ji = 2, jpi ! NO vector opt.
[888]	185	zstms = zztms(ji,jj ) * wght(ji,jj,2,2) + zztms(ji-1,jj ) * wght(ji,jj,1,2) &
	186	& + zztms(ji,jj-1) * wght(ji,jj,2,1) + zztms(ji-1,jj-1) * wght(ji,jj,1,1)
[2528]	187	zusw = 1._wp / MAX( zstms, epsd )
[3]	188
[888]	189	zt11 = zztms(ji ,jj ) * zzfrld(ji ,jj )
	190	zt12 = zztms(ji-1,jj ) * zzfrld(ji-1,jj )
	191	zt21 = zztms(ji ,jj-1) * zzfrld(ji ,jj-1)
	192	zt22 = zztms(ji-1,jj-1) * zzfrld(ji-1,jj-1)
[3]	193
[717]	194	! Leads area.
	195	zfrld(ji,jj) = ( zt11 * wght(ji,jj,2,2) + zt12 * wght(ji,jj,1,2) &
	196	& + zt21 * wght(ji,jj,2,1) + zt22 * wght(ji,jj,1,1) ) * zusw
[3]	197
[888]	198	! Mass and coriolis coeff. at I-point
	199	zmass(ji,jj) = ( zmasst(ji,jj ) * wght(ji,jj,2,2) + zmasst(ji-1,jj ) * wght(ji,jj,1,2) &
	200	& + zmasst(ji,jj-1) * wght(ji,jj,2,1) + zmasst(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw
[1569]	201	zcorl(ji,jj) = zmass(ji,jj) &
	202	& ( fcor(ji,jj ) wght(ji,jj,2,2) + fcor(ji-1,jj )*wght(ji,jj,1,2) &
	203	& + fcor(ji,jj-1) * wght(ji,jj,2,1) + fcor(ji-1,jj-1)wght(ji,jj,1,1) ) zusw
[717]	204
[700]	205	! Wind stress.
[1469]	206	! always provide stress at I-point
[888]	207	ztagnx = ( zi1(ji,jj ) * wght(ji,jj,2,2) + zi1(ji-1,jj ) * wght(ji,jj,1,2) &
[1469]	208	& + zi1(ji,jj-1) * wght(ji,jj,2,1) + zi1(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw * utau_ice(ji,jj)
[888]	209	ztagny = ( zi2(ji,jj ) * wght(ji,jj,2,2) + zi2(ji-1,jj ) * wght(ji,jj,1,2) &
[1469]	210	& + zi2(ji,jj-1) * wght(ji,jj,2,1) + zi2(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw * vtau_ice(ji,jj)
[700]	211
[3]	212	! Gradient of ice strength
	213	zgphsx = ( alambd(ji,jj,2,2,2,1) - alambd(ji,jj,2,1,2,1) ) * zpresh(ji ,jj-1) &
	214	& + ( alambd(ji,jj,2,2,2,2) - alambd(ji,jj,2,1,2,2) ) * zpresh(ji ,jj ) &
	215	& - ( alambd(ji,jj,2,2,1,1) + alambd(ji,jj,2,1,1,1) ) * zpresh(ji-1,jj-1) &
	216	& - ( alambd(ji,jj,2,2,1,2) + alambd(ji,jj,2,1,1,2) ) * zpresh(ji-1,jj )
	217
	218	zgphsy = - ( alambd(ji,jj,1,1,2,1) + alambd(ji,jj,1,2,2,1) ) * zpresh(ji ,jj-1) &
	219	& - ( alambd(ji,jj,1,1,1,1) + alambd(ji,jj,1,2,1,1) ) * zpresh(ji-1,jj-1) &
	220	& + ( alambd(ji,jj,1,1,2,2) - alambd(ji,jj,1,2,2,2) ) * zpresh(ji ,jj ) &
	221	& + ( alambd(ji,jj,1,1,1,2) - alambd(ji,jj,1,2,1,2) ) * zpresh(ji-1,jj )
	222
[1711]	223	! Gradient of the sea surface height
[3625]	224	zgsshx = ( (zpice(ji ,jj ) - zpice(ji-1,jj ))/e1u(ji-1,jj ) &
	225	& + (zpice(ji ,jj-1) - zpice(ji-1,jj-1))/e1u(ji-1,jj-1) ) * 0.5_wp
	226	zgsshy = ( (zpice(ji ,jj ) - zpice(ji ,jj-1))/e2v(ji ,jj-1) &
	227	& + (zpice(ji-1,jj ) - zpice(ji-1,jj-1))/e2v(ji-1,jj-1) ) * 0.5_wp
[1711]	228
[3]	229	! Computation of the velocity field taking into account the ice-ice interaction.
[888]	230	! Terms that are independent of the ice velocity field.
[1711]	231	za1ct(ji,jj) = ztagnx - zmass(ji,jj) * grav * zgsshx - zgphsx
	232	za2ct(ji,jj) = ztagny - zmass(ji,jj) * grav * zgsshy - zgphsy
[3]	233	END DO
	234	END DO
	235
	236
	237	! SOLUTION OF THE MOMENTUM EQUATION.
	238	!------------------------------------------
	239	! ! ==================== !
	240	DO iter = 1 , 2 * nbiter ! loop over iter !
	241	! ! ==================== !
	242	zindu = MOD( iter , 2 )
[2528]	243	zusdtp = ( zindu * 2._wp + ( 1._wp - zindu ) * 1._wp ) * REAL( nbiter ) / rdt_ice
[3]	244
	245	! Computation of free drift field for free slip boundary conditions.
	246
[888]	247	!CDIR NOVERRCHK
	248	DO jj = k_j1, k_jpj-1
	249	!CDIR NOVERRCHK
	250	DO ji = 1, fs_jpim1
	251	!- Rate of strain tensor.
	252	zt11 = akappa(ji,jj,1,1) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) - zu_a(ji,jj ) - zu_a(ji ,jj+1) ) &
	253	& + akappa(ji,jj,1,2) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) + zv_a(ji,jj ) + zv_a(ji ,jj+1) )
	254	zt12 = - akappa(ji,jj,2,2) * ( zu_a(ji ,jj) + zu_a(ji+1,jj ) - zu_a(ji,jj+1) - zu_a(ji+1,jj+1) ) &
	255	& - akappa(ji,jj,2,1) * ( zv_a(ji ,jj) + zv_a(ji+1,jj ) + zv_a(ji,jj+1) + zv_a(ji+1,jj+1) )
	256	zt22 = - akappa(ji,jj,2,2) * ( zv_a(ji ,jj) + zv_a(ji+1,jj ) - zv_a(ji,jj+1) - zv_a(ji+1,jj+1) ) &
	257	& + akappa(ji,jj,2,1) * ( zu_a(ji ,jj) + zu_a(ji+1,jj ) + zu_a(ji,jj+1) + zu_a(ji+1,jj+1) )
	258	zt21 = akappa(ji,jj,1,1) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) - zv_a(ji,jj ) - zv_a(ji ,jj+1) ) &
	259	& - akappa(ji,jj,1,2) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) + zu_a(ji,jj ) + zu_a(ji ,jj+1) )
[3]	260
[888]	261	!- Rate of strain tensor.
	262	zdgp = zt11 + zt22
	263	zdgi = zt12 + zt21
	264	ztrace2 = zdgp * zdgp
[2528]	265	zdeter = zt11 * zt22 - 0.25_wp * zdgi * zdgi
[3]	266
[888]	267	! Creep limit depends on the size of the grid.
[5123]	268	zdelta = MAX( SQRT( ztrace2 + ( ztrace2 - 4._wp * zdeter ) * usecc2 ), rn_creepl)
[3]	269
[888]	270	!- Computation of viscosities.
	271	zviszeta(ji,jj) = MAX( zpresh(ji,jj) / zdelta, etamn )
	272	zviseta (ji,jj) = zviszeta(ji,jj) * usecc2
	273	END DO
	274	END DO
[3]	275
[888]	276	!- Determination of zc1u, zc2u, zc1v and zc2v.
	277	DO jj = k_j1+1, k_jpj-1
[1347]	278	DO ji = 2, fs_jpim1 ! NO vector opt.
[888]	279	!* zc1u , zc2v
[2528]	280	zvis11 = 2._wp * zviseta (ji-1,jj-1) + dm
	281	zvis12 = zviseta (ji-1,jj-1) + dm
	282	zvis21 = zviseta (ji-1,jj-1)
	283	zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1)
[888]	284	zdiag = zvis22 * ( akappa(ji-1,jj-1,1,1) + akappa(ji-1,jj-1,2,1) )
	285	zs11_11 = zvis11 * akappa(ji-1,jj-1,1,1) + zdiag
	286	zs12_11 = zvis12 * akappa(ji-1,jj-1,2,2) - zvis21 * akappa(ji-1,jj-1,1,2)
	287	zs21_11 = -zvis12 * akappa(ji-1,jj-1,1,2) + zvis21 * akappa(ji-1,jj-1,2,2)
	288	zs22_11 = zvis11 * akappa(ji-1,jj-1,2,1) + zdiag
[3]	289
[2528]	290	zvis11 = 2._wp * zviseta (ji,jj-1) + dm
	291	zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1)
	292	zvis12 = zviseta (ji,jj-1) + dm
	293	zvis21 = zviseta (ji,jj-1)
[888]	294	zdiag = zvis22 * ( -akappa(ji,jj-1,1,1) + akappa(ji,jj-1,2,1) )
	295	zs11_21 = -zvis11 * akappa(ji,jj-1,1,1) + zdiag
	296	zs12_21 = zvis12 * akappa(ji,jj-1,2,2) - zvis21 * akappa(ji,jj-1,1,2)
	297	zs22_21 = zvis11 * akappa(ji,jj-1,2,1) + zdiag
	298	zs21_21 = -zvis12 * akappa(ji,jj-1,1,2) + zvis21 * akappa(ji,jj-1,2,2)
[3]	299
[2528]	300	zvis11 = 2._wp * zviseta (ji-1,jj) + dm
	301	zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj)
	302	zvis12 = zviseta (ji-1,jj) + dm
	303	zvis21 = zviseta (ji-1,jj)
	304	zdiag = zvis22 * ( akappa(ji-1,jj,1,1) + akappa(ji-1,jj,2,1) )
[888]	305	zs11_12 = zvis11 * akappa(ji-1,jj,1,1) + zdiag
	306	zs12_12 = -zvis12 * akappa(ji-1,jj,2,2) - zvis21 * akappa(ji-1,jj,1,2)
	307	zs22_12 = zvis11 * akappa(ji-1,jj,2,1) + zdiag
	308	zs21_12 = -zvis12 * akappa(ji-1,jj,1,2) - zvis21 * akappa(ji-1,jj,2,2)
[3]	309
[2528]	310	zvis11 = 2._wp * zviseta (ji,jj) + dm
	311	zvis22 = zviszeta(ji,jj) - zviseta(ji,jj)
	312	zvis12 = zviseta (ji,jj) + dm
	313	zvis21 = zviseta (ji,jj)
[888]	314	zdiag = zvis22 * ( -akappa(ji,jj,1,1) + akappa(ji,jj,2,1) )
	315	zs11_22 = -zvis11 * akappa(ji,jj,1,1) + zdiag
	316	zs12_22 = -zvis12 * akappa(ji,jj,2,2) - zvis21 * akappa(ji,jj,1,2)
	317	zs22_22 = zvis11 * akappa(ji,jj,2,1) + zdiag
	318	zs21_22 = -zvis12 * akappa(ji,jj,1,2) - zvis21 * akappa(ji,jj,2,2)
[3]	319
[888]	320	zc1u(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs11_21 + alambd(ji,jj,2,2,2,2) * zs11_22 &
	321	& - alambd(ji,jj,2,2,1,1) * zs11_11 - alambd(ji,jj,2,2,1,2) * zs11_12 &
	322	& - alambd(ji,jj,1,1,2,1) * zs12_21 - alambd(ji,jj,1,1,1,1) * zs12_11 &
	323	& + alambd(ji,jj,1,1,2,2) * zs12_22 + alambd(ji,jj,1,1,1,2) * zs12_12 &
	324	& + alambd(ji,jj,1,2,1,1) * zs21_11 + alambd(ji,jj,1,2,2,1) * zs21_21 &
	325	& + alambd(ji,jj,1,2,1,2) * zs21_12 + alambd(ji,jj,1,2,2,2) * zs21_22 &
	326	& - alambd(ji,jj,2,1,1,1) * zs22_11 - alambd(ji,jj,2,1,2,1) * zs22_21 &
	327	& - alambd(ji,jj,2,1,1,2) * zs22_12 - alambd(ji,jj,2,1,2,2) * zs22_22
[3]	328
[888]	329	zc2u(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs21_21 + alambd(ji,jj,2,2,2,2) * zs21_22 &
	330	& - alambd(ji,jj,2,2,1,1) * zs21_11 - alambd(ji,jj,2,2,1,2) * zs21_12 &
	331	& - alambd(ji,jj,1,1,2,1) * zs22_21 - alambd(ji,jj,1,1,1,1) * zs22_11 &
	332	& + alambd(ji,jj,1,1,2,2) * zs22_22 + alambd(ji,jj,1,1,1,2) * zs22_12 &
	333	& - alambd(ji,jj,1,2,1,1) * zs11_11 - alambd(ji,jj,1,2,2,1) * zs11_21 &
	334	& - alambd(ji,jj,1,2,1,2) * zs11_12 - alambd(ji,jj,1,2,2,2) * zs11_22 &
	335	& + alambd(ji,jj,2,1,1,1) * zs12_11 + alambd(ji,jj,2,1,2,1) * zs12_21 &
	336	& + alambd(ji,jj,2,1,1,2) * zs12_12 + alambd(ji,jj,2,1,2,2) * zs12_22
[3]	337
[888]	338	!* zc1v , zc2v.
[2528]	339	zvis11 = 2._wp * zviseta (ji-1,jj-1) + dm
	340	zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1)
	341	zvis12 = zviseta (ji-1,jj-1) + dm
	342	zvis21 = zviseta (ji-1,jj-1)
[888]	343	zdiag = zvis22 * ( akappa(ji-1,jj-1,1,2) + akappa(ji-1,jj-1,2,2) )
	344	zs11_11 = zvis11 * akappa(ji-1,jj-1,1,2) + zdiag
	345	zs12_11 = -zvis12 * akappa(ji-1,jj-1,2,1) + zvis21 * akappa(ji-1,jj-1,1,1)
	346	zs22_11 = zvis11 * akappa(ji-1,jj-1,2,2) + zdiag
	347	zs21_11 = zvis12 * akappa(ji-1,jj-1,1,1) - zvis21 * akappa(ji-1,jj-1,2,1)
[3]	348
[2528]	349	zvis11 = 2._wp * zviseta (ji,jj-1) + dm
	350	zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1)
	351	zvis12 = zviseta (ji,jj-1) + dm
	352	zvis21 = zviseta (ji,jj-1)
[888]	353	zdiag = zvis22 * ( akappa(ji,jj-1,1,2) + akappa(ji,jj-1,2,2) )
	354	zs11_21 = zvis11 * akappa(ji,jj-1,1,2) + zdiag
	355	zs12_21 = -zvis12 * akappa(ji,jj-1,2,1) - zvis21 * akappa(ji,jj-1,1,1)
	356	zs22_21 = zvis11 * akappa(ji,jj-1,2,2) + zdiag
	357	zs21_21 = -zvis12 * akappa(ji,jj-1,1,1) - zvis21 * akappa(ji,jj-1,2,1)
[3]	358
[2528]	359	zvis11 = 2._wp * zviseta (ji-1,jj) + dm
	360	zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj)
	361	zvis12 = zviseta (ji-1,jj) + dm
	362	zvis21 = zviseta (ji-1,jj)
[888]	363	zdiag = zvis22 * ( akappa(ji-1,jj,1,2) - akappa(ji-1,jj,2,2) )
	364	zs11_12 = zvis11 * akappa(ji-1,jj,1,2) + zdiag
	365	zs12_12 = -zvis12 * akappa(ji-1,jj,2,1) + zvis21 * akappa(ji-1,jj,1,1)
	366	zs22_12 = -zvis11 * akappa(ji-1,jj,2,2) + zdiag
	367	zs21_12 = zvis12 * akappa(ji-1,jj,1,1) - zvis21 * akappa(ji-1,jj,2,1)
[3]	368
[2528]	369	zvis11 = 2._wp * zviseta (ji,jj) + dm
	370	zvis22 = zviszeta(ji,jj) - zviseta(ji,jj)
	371	zvis12 = zviseta (ji,jj) + dm
	372	zvis21 = zviseta (ji,jj)
[888]	373	zdiag = zvis22 * ( akappa(ji,jj,1,2) - akappa(ji,jj,2,2) )
	374	zs11_22 = zvis11 * akappa(ji,jj,1,2) + zdiag
	375	zs12_22 = -zvis12 * akappa(ji,jj,2,1) - zvis21 * akappa(ji,jj,1,1)
	376	zs22_22 = -zvis11 * akappa(ji,jj,2,2) + zdiag
	377	zs21_22 = -zvis12 * akappa(ji,jj,1,1) - zvis21 * akappa(ji,jj,2,1)
[3]	378
[888]	379	zc1v(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs11_21 + alambd(ji,jj,2,2,2,2) * zs11_22 &
	380	& - alambd(ji,jj,2,2,1,1) * zs11_11 - alambd(ji,jj,2,2,1,2) * zs11_12 &
	381	& - alambd(ji,jj,1,1,2,1) * zs12_21 - alambd(ji,jj,1,1,1,1) * zs12_11 &
	382	& + alambd(ji,jj,1,1,2,2) * zs12_22 + alambd(ji,jj,1,1,1,2) * zs12_12 &
	383	& + alambd(ji,jj,1,2,1,1) * zs21_11 + alambd(ji,jj,1,2,2,1) * zs21_21 &
	384	& + alambd(ji,jj,1,2,1,2) * zs21_12 + alambd(ji,jj,1,2,2,2) * zs21_22 &
	385	& - alambd(ji,jj,2,1,1,1) * zs22_11 - alambd(ji,jj,2,1,2,1) * zs22_21 &
	386	& - alambd(ji,jj,2,1,1,2) * zs22_12 - alambd(ji,jj,2,1,2,2) * zs22_22
[3]	387
[888]	388	zc2v(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs21_21 + alambd(ji,jj,2,2,2,2) * zs21_22 &
	389	& - alambd(ji,jj,2,2,1,1) * zs21_11 - alambd(ji,jj,2,2,1,2) * zs21_12 &
	390	& - alambd(ji,jj,1,1,2,1) * zs22_21 - alambd(ji,jj,1,1,1,1) * zs22_11 &
	391	& + alambd(ji,jj,1,1,2,2) * zs22_22 + alambd(ji,jj,1,1,1,2) * zs22_12 &
	392	& - alambd(ji,jj,1,2,1,1) * zs11_11 - alambd(ji,jj,1,2,2,1) * zs11_21 &
	393	& - alambd(ji,jj,1,2,1,2) * zs11_12 - alambd(ji,jj,1,2,2,2) * zs11_22 &
	394	& + alambd(ji,jj,2,1,1,1) * zs12_11 + alambd(ji,jj,2,1,2,1) * zs12_21 &
	395	& + alambd(ji,jj,2,1,1,2) * zs12_12 + alambd(ji,jj,2,1,2,2) * zs12_22
[3]	396	END DO
[888]	397	END DO
[3]	398
[888]	399	! GAUSS-SEIDEL method
	400	! ! ================ !
	401	iflag: DO jter = 1 , nbitdr ! Relaxation !
	402	! ! ================ !
	403	!CDIR NOVERRCHK
[77]	404	DO jj = k_j1+1, k_jpj-1
[888]	405	!CDIR NOVERRCHK
[1347]	406	DO ji = 2, fs_jpim1 ! NO vector opt.
[888]	407	!
	408	ze11 = akappa(ji,jj-1,1,1) * zu_a(ji+1,jj) + akappa(ji,jj-1,1,2) * zv_a(ji+1,jj)
	409	ze12 = + akappa(ji,jj-1,2,2) * zu_a(ji+1,jj) - akappa(ji,jj-1,2,1) * zv_a(ji+1,jj)
	410	ze22 = + akappa(ji,jj-1,2,2) * zv_a(ji+1,jj) + akappa(ji,jj-1,2,1) * zu_a(ji+1,jj)
	411	ze21 = akappa(ji,jj-1,1,1) * zv_a(ji+1,jj) - akappa(ji,jj-1,1,2) * zu_a(ji+1,jj)
[2528]	412	zvis11 = 2._wp * zviseta (ji,jj-1) + dm
	413	zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1)
	414	zvis12 = zviseta (ji,jj-1) + dm
	415	zvis21 = zviseta (ji,jj-1)
[3]	416	zdiag = zvis22 * ( ze11 + ze22 )
[888]	417	zs11_21 = zvis11 * ze11 + zdiag
	418	zs12_21 = zvis12 * ze12 + zvis21 * ze21
	419	zs22_21 = zvis11 * ze22 + zdiag
	420	zs21_21 = zvis12 * ze21 + zvis21 * ze12
[3]	421
[888]	422	ze11 = akappa(ji-1,jj,1,1) * ( zu_a(ji ,jj+1) - zu_a(ji-1,jj+1) ) &
	423	& + akappa(ji-1,jj,1,2) * ( zv_a(ji ,jj+1) + zv_a(ji-1,jj+1) )
	424	ze12 = + akappa(ji-1,jj,2,2) * ( zu_a(ji-1,jj+1) + zu_a(ji ,jj+1) ) &
	425	& - akappa(ji-1,jj,2,1) * ( zv_a(ji-1,jj+1) + zv_a(ji ,jj+1) )
	426	ze22 = + akappa(ji-1,jj,2,2) * ( zv_a(ji-1,jj+1) + zv_a(ji ,jj+1) ) &
	427	& + akappa(ji-1,jj,2,1) * ( zu_a(ji-1,jj+1) + zu_a(ji ,jj+1) )
	428	ze21 = akappa(ji-1,jj,1,1) * ( zv_a(ji ,jj+1) - zv_a(ji-1,jj+1) ) &
	429	& - akappa(ji-1,jj,1,2) * ( zu_a(ji ,jj+1) + zu_a(ji-1,jj+1) )
[2528]	430	zvis11 = 2._wp * zviseta (ji-1,jj) + dm
	431	zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj)
	432	zvis12 = zviseta (ji-1,jj) + dm
	433	zvis21 = zviseta (ji-1,jj)
[3]	434	zdiag = zvis22 * ( ze11 + ze22 )
[888]	435	zs11_12 = zvis11 * ze11 + zdiag
	436	zs12_12 = zvis12 * ze12 + zvis21 * ze21
	437	zs22_12 = zvis11 * ze22 + zdiag
	438	zs21_12 = zvis12 * ze21 + zvis21 * ze12
[3]	439
[888]	440	ze11 = akappa(ji,jj,1,1) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) - zu_a(ji ,jj+1) ) &
	441	& + akappa(ji,jj,1,2) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) + zv_a(ji ,jj+1) )
	442	ze12 = - akappa(ji,jj,2,2) * ( zu_a(ji+1,jj) - zu_a(ji ,jj+1) - zu_a(ji+1,jj+1) ) &
	443	& - akappa(ji,jj,2,1) * ( zv_a(ji+1,jj) + zv_a(ji ,jj+1) + zv_a(ji+1,jj+1) )
	444	ze22 = - akappa(ji,jj,2,2) * ( zv_a(ji+1,jj) - zv_a(ji ,jj+1) - zv_a(ji+1,jj+1) ) &
	445	& + akappa(ji,jj,2,1) * ( zu_a(ji+1,jj) + zu_a(ji ,jj+1) + zu_a(ji+1,jj+1) )
	446	ze21 = akappa(ji,jj,1,1) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) - zv_a(ji ,jj+1) ) &
	447	& - akappa(ji,jj,1,2) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) + zu_a(ji ,jj+1) )
[2528]	448	zvis11 = 2._wp * zviseta (ji,jj) + dm
	449	zvis22 = zviszeta(ji,jj) - zviseta(ji,jj)
	450	zvis12 = zviseta (ji,jj) + dm
	451	zvis21 = zviseta (ji,jj)
[3]	452	zdiag = zvis22 * ( ze11 + ze22 )
[888]	453	zs11_22 = zvis11 * ze11 + zdiag
	454	zs12_22 = zvis12 * ze12 + zvis21 * ze21
	455	zs22_22 = zvis11 * ze22 + zdiag
	456	zs21_22 = zvis12 * ze21 + zvis21 * ze12
[3]	457
[888]	458	! 2nd part
	459	ze11 = akappa(ji-1,jj-1,1,1) * ( zu_a(ji ,jj-1) - zu_a(ji-1,jj-1) - zu_a(ji-1,jj) ) &
	460	& + akappa(ji-1,jj-1,1,2) * ( zv_a(ji ,jj-1) + zv_a(ji-1,jj-1) + zv_a(ji-1,jj) )
	461	ze12 = - akappa(ji-1,jj-1,2,2) * ( zu_a(ji-1,jj-1) + zu_a(ji ,jj-1) - zu_a(ji-1,jj) ) &
	462	& - akappa(ji-1,jj-1,2,1) * ( zv_a(ji-1,jj-1) + zv_a(ji ,jj-1) + zv_a(ji-1,jj) )
	463	ze22 = - akappa(ji-1,jj-1,2,2) * ( zv_a(ji-1,jj-1) + zv_a(ji ,jj-1) - zv_a(ji-1,jj) ) &
	464	& + akappa(ji-1,jj-1,2,1) * ( zu_a(ji-1,jj-1) + zu_a(ji ,jj-1) + zu_a(ji-1,jj) )
	465	ze21 = akappa(ji-1,jj-1,1,1) * ( zv_a(ji ,jj-1) - zv_a(ji-1,jj-1) - zv_a(ji-1,jj) ) &
	466	& - akappa(ji-1,jj-1,1,2) * ( zu_a(ji ,jj-1) + zu_a(ji-1,jj-1) + zu_a(ji-1,jj) )
[2528]	467	zvis11 = 2._wp * zviseta (ji-1,jj-1) + dm
	468	zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1)
	469	zvis12 = zviseta (ji-1,jj-1) + dm
	470	zvis21 = zviseta (ji-1,jj-1)
[3]	471	zdiag = zvis22 * ( ze11 + ze22 )
[888]	472	zs11_11 = zvis11 * ze11 + zdiag
	473	zs12_11 = zvis12 * ze12 + zvis21 * ze21
	474	zs22_11 = zvis11 * ze22 + zdiag
	475	zs21_11 = zvis12 * ze21 + zvis21 * ze12
[3]	476
[888]	477	ze11 = akappa(ji,jj-1,1,1) * ( zu_a(ji+1,jj-1) - zu_a(ji ,jj-1) ) &
	478	& + akappa(ji,jj-1,1,2) * ( zv_a(ji+1,jj-1) + zv_a(ji ,jj-1) )
	479	ze12 = - akappa(ji,jj-1,2,2) * ( zu_a(ji ,jj-1) + zu_a(ji+1,jj-1) ) &
	480	& - akappa(ji,jj-1,2,1) * ( zv_a(ji ,jj-1) + zv_a(ji+1,jj-1) )
	481	ze22 = - akappa(ji,jj-1,2,2) * ( zv_a(ji ,jj-1) + zv_a(ji+1,jj-1) ) &
	482	& + akappa(ji,jj-1,2,1) * ( zu_a(ji ,jj-1) + zu_a(ji+1,jj-1) )
	483	ze21 = akappa(ji,jj-1,1,1) * ( zv_a(ji+1,jj-1) - zv_a(ji ,jj-1) ) &
	484	& - akappa(ji,jj-1,1,2) * ( zu_a(ji+1,jj-1) + zu_a(ji ,jj-1) )
[2528]	485	zvis11 = 2._wp * zviseta (ji,jj-1) + dm
	486	zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1)
	487	zvis12 = zviseta (ji,jj-1) + dm
	488	zvis21 = zviseta (ji,jj-1)
[3]	489	zdiag = zvis22 * ( ze11 + ze22 )
[888]	490	zs11_21 = zs11_21 + zvis11 * ze11 + zdiag
	491	zs12_21 = zs12_21 + zvis12 * ze12 + zvis21 * ze21
	492	zs22_21 = zs22_21 + zvis11 * ze22 + zdiag
	493	zs21_21 = zs21_21 + zvis12 * ze21 + zvis21 * ze12
[3]	494
[888]	495	ze11 = - akappa(ji-1,jj,1,1) * zu_a(ji-1,jj) + akappa(ji-1,jj,1,2) * zv_a(ji-1,jj)
	496	ze12 = - akappa(ji-1,jj,2,2) * zu_a(ji-1,jj) - akappa(ji-1,jj,2,1) * zv_a(ji-1,jj)
	497	ze22 = - akappa(ji-1,jj,2,2) * zv_a(ji-1,jj) + akappa(ji-1,jj,2,1) * zu_a(ji-1,jj)
	498	ze21 = - akappa(ji-1,jj,1,1) * zv_a(ji-1,jj) - akappa(ji-1,jj,1,2) * zu_a(ji-1,jj)
[2528]	499	zvis11 = 2._wp * zviseta (ji-1,jj) + dm
	500	zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj)
	501	zvis12 = zviseta (ji-1,jj) + dm
	502	zvis21 = zviseta (ji-1,jj)
[3]	503	zdiag = zvis22 * ( ze11 + ze22 )
[888]	504	zs11_12 = zs11_12 + zvis11 * ze11 + zdiag
	505	zs12_12 = zs12_12 + zvis12 * ze12 + zvis21 * ze21
	506	zs22_12 = zs22_12 + zvis11 * ze22 + zdiag
	507	zs21_12 = zs21_12 + zvis12 * ze21 + zvis21 * ze12
[3]	508
[888]	509	zd1 = + alambd(ji,jj,2,2,2,1) * zs11_21 + alambd(ji,jj,2,2,2,2) * zs11_22 &
	510	& - alambd(ji,jj,2,2,1,1) * zs11_11 - alambd(ji,jj,2,2,1,2) * zs11_12 &
	511	& - alambd(ji,jj,1,1,2,1) * zs12_21 - alambd(ji,jj,1,1,1,1) * zs12_11 &
	512	& + alambd(ji,jj,1,1,2,2) * zs12_22 + alambd(ji,jj,1,1,1,2) * zs12_12 &
	513	& + alambd(ji,jj,1,2,1,1) * zs21_11 + alambd(ji,jj,1,2,2,1) * zs21_21 &
	514	& + alambd(ji,jj,1,2,1,2) * zs21_12 + alambd(ji,jj,1,2,2,2) * zs21_22 &
	515	& - alambd(ji,jj,2,1,1,1) * zs22_11 - alambd(ji,jj,2,1,2,1) * zs22_21 &
	516	& - alambd(ji,jj,2,1,1,2) * zs22_12 - alambd(ji,jj,2,1,2,2) * zs22_22
[3]	517
[888]	518	zd2 = + alambd(ji,jj,2,2,2,1) * zs21_21 + alambd(ji,jj,2,2,2,2) * zs21_22 &
	519	& - alambd(ji,jj,2,2,1,1) * zs21_11 - alambd(ji,jj,2,2,1,2) * zs21_12 &
	520	& - alambd(ji,jj,1,1,2,1) * zs22_21 - alambd(ji,jj,1,1,1,1) * zs22_11 &
	521	& + alambd(ji,jj,1,1,2,2) * zs22_22 + alambd(ji,jj,1,1,1,2) * zs22_12 &
	522	& - alambd(ji,jj,1,2,1,1) * zs11_11 - alambd(ji,jj,1,2,2,1) * zs11_21 &
	523	& - alambd(ji,jj,1,2,1,2) * zs11_12 - alambd(ji,jj,1,2,2,2) * zs11_22 &
	524	& + alambd(ji,jj,2,1,1,1) * zs12_11 + alambd(ji,jj,2,1,2,1) * zs12_21 &
	525	& + alambd(ji,jj,2,1,1,2) * zs12_12 + alambd(ji,jj,2,1,2,2) * zs12_22
[3]	526
[1470]	527	zur = zu_a(ji,jj) - u_oce(ji,jj)
	528	zvr = zv_a(ji,jj) - v_oce(ji,jj)
[888]	529	!!!!
[2528]	530	zmod = SQRT( zurzur + zvrzvr ) * ( 1._wp - zfrld(ji,jj) )
[888]	531	za = rhoco * zmod
	532	!!!!
[2528]	533	!!gm chg resul za = rhoco * SQRT( zurzur + zvrzvr ) * ( 1._wp - zfrld(ji,jj) )
[888]	534	zac = za * cangvg
	535	zmpzas = alpha * zcorl(ji,jj) + za * zsang(ji,jj)
	536	zmassdt = zusdtp * zmass(ji,jj)
[2528]	537	zcorlal = ( 1._wp - alpha ) * zcorl(ji,jj)
[3]	538
[888]	539	za1 = zmassdt * zu0(ji,jj) + zcorlal * zv0(ji,jj) + za1ct(ji,jj) &
[1470]	540	& + za * ( cangvg * u_oce(ji,jj) - zsang(ji,jj) * v_oce(ji,jj) )
[888]	541	za2 = zmassdt * zv0(ji,jj) - zcorlal * zu0(ji,jj) + za2ct(ji,jj) &
[1470]	542	& + za * ( cangvg * v_oce(ji,jj) + zsang(ji,jj) * u_oce(ji,jj) )
[888]	543	zb1 = zmassdt + zac - zc1u(ji,jj)
	544	zb2 = zmpzas - zc2u(ji,jj)
	545	zc1 = zmpzas + zc1v(ji,jj)
	546	zc2 = zmassdt + zac - zc2v(ji,jj)
	547	zdeter = zc1 * zb2 + zc2 * zb1
	548	zden = SIGN( rone, zdeter) / MAX( epsd , ABS( zdeter ) )
	549	zunw = ( ( za1 + zd1 ) * zc2 + ( za2 + zd2 ) * zc1 ) * zden
	550	zvnw = ( ( za2 + zd2 ) * zb1 - ( za1 + zd1 ) * zb2 ) * zden
[2528]	551	zmask = ( 1._wp - MAX( rzero, SIGN( rone , 1._wp - zmass(ji,jj) ) ) ) * tmu(ji,jj)
[3]	552
[888]	553	zu_n(ji,jj) = ( zu_a(ji,jj) + om * ( zunw - zu_a(ji,jj) ) * tmu(ji,jj) ) * zmask
	554	zv_n(ji,jj) = ( zv_a(ji,jj) + om * ( zvnw - zv_a(ji,jj) ) * tmu(ji,jj) ) * zmask
[3]	555	END DO
	556	END DO
	557
[888]	558	CALL lbc_lnk( zu_n(:,1:jpj), 'I', -1. )
	559	CALL lbc_lnk( zv_n(:,1:jpj), 'I', -1. )
[3]	560
[3680]	561	#if defined key_agrif
	562	! copy the boundary value from u_ice_nst and v_ice_nst to u_ice and v_ice
	563	! before next interations
	564	CALL agrif_rhg_lim2(zu_n,zv_n)
	565	#endif
	566
[888]	567	! Test of Convergence
[77]	568	DO jj = k_j1+1 , k_jpj-1
[888]	569	zresr(:,jj) = MAX( ABS( zu_a(:,jj) - zu_n(:,jj) ) , ABS( zv_a(:,jj) - zv_n(:,jj) ) )
[3]	570	END DO
[888]	571	zresm = MAXVAL( zresr(1:jpi,k_j1+1:k_jpj-1) )
	572	!!!! this should be faster on scalar processor
	573	! zresm = MAXVAL( MAX( ABS( zu_a(1:jpi,k_j1+1:k_jpj-1) - zu_n(1:jpi,k_j1+1:k_jpj-1) ), &
	574	! & ABS( zv_a(1:jpi,k_j1+1:k_jpj-1) - zv_n(1:jpi,k_j1+1:k_jpj-1) ) ) )
	575	!!!!
[77]	576	IF( lk_mpp ) CALL mpp_max( zresm ) ! max over the global domain
[3]	577
[888]	578	DO jj = k_j1, k_jpj
	579	zu_a(:,jj) = zu_n(:,jj)
	580	zv_a(:,jj) = zv_n(:,jj)
	581	END DO
[3]	582
[888]	583	IF( zresm <= resl ) EXIT iflag
[3]	584
[888]	585	! ! ================ !
	586	END DO iflag ! end Relaxation !
	587	! ! ================ !
	588
	589	IF( zindu == 0 ) THEN ! even iteration
	590	DO jj = k_j1 , k_jpj-1
	591	zu0(:,jj) = zu_a(:,jj)
	592	zv0(:,jj) = zv_a(:,jj)
	593	END DO
	594	ENDIF
	595	! ! ==================== !
[3]	596	END DO ! end loop over iter !
	597	! ! ==================== !
	598
[1470]	599	u_ice(:,:) = zu_a(:,1:jpj)
	600	v_ice(:,:) = zv_a(:,1:jpj)
[888]	601
[258]	602	IF(ln_ctl) THEN
	603	WRITE(charout,FMT="('lim_rhg : res =',D23.16, ' iter =',I4)") zresm, jter
	604	CALL prt_ctl_info(charout)
[1470]	605	CALL prt_ctl(tab2d_1=u_ice, clinfo1=' lim_rhg : u_ice :', tab2d_2=v_ice, clinfo2=' v_ice :')
[3]	606	ENDIF
	607
[3294]	608	CALL wrk_dealloc( jpi,jpj, zfrld, zmass, zcorl, za1ct, za2ct, zresr )
[3625]	609	CALL wrk_dealloc( jpi,jpj, zc1u , zc1v , zc2u , zc2v , zsang, zpice )
[3294]	610	CALL wrk_dealloc( jpi,jpj+2, zu0, zv0, zu_n, zv_n, zu_a, zv_a, zviszeta, zviseta, kjstart = 0 )
	611	CALL wrk_dealloc( jpi,jpj+2, zzfrld, zztms, zi1, zi2, zmasst, zpresh, kjstart = 0 )
	612
[821]	613	END SUBROUTINE lim_rhg_2
[77]	614
[3]	615	#else
[77]	616	!!----------------------------------------------------------------------
[2528]	617	!! Default option Dummy module NO VP & LIM-2 sea-ice model
[77]	618	!!----------------------------------------------------------------------
[3]	619	CONTAINS
[821]	620	SUBROUTINE lim_rhg_2( k1 , k2 ) ! Dummy routine
	621	WRITE(,) 'lim_rhg_2: You should not have seen this print! error?', k1, k2
	622	END SUBROUTINE lim_rhg_2
[3]	623	#endif
	624
[77]	625	!!==============================================================================
[821]	626	END MODULE limrhg_2

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source: branches/UKMO/dev_r5518_GO6_package/NEMOGCM/NEMO/LIM_SRC_2/limrhg_2.F90 @ 13354

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