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limthd.F90 in branches/2015/dev_r5044_CNRS_LIM3CLEAN/NEMOGCM/NEMO/LIM_SRC_3 – NEMO

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source: branches/2015/dev_r5044_CNRS_LIM3CLEAN/NEMOGCM/NEMO/LIM_SRC_3/limthd.F90 @ 5047

Last change on this file since 5047 was 5047, checked in by clem, 9 years ago
LIM3 cleaning (1): namelist
Property svn:keywords set to `Id`
File size: 34.2 KB

Rev	Line
[825]	1	MODULE limthd
	2	!!======================================================================
	3	!! * MODULE limthd *
[1572]	4	!! LIM-3 : ice thermodynamic
[825]	5	!!======================================================================
[1572]	6	!! History : LIM ! 2000-01 (M.A. Morales Maqueda, H. Goosse, T. Fichefet) LIM-1
	7	!! 2.0 ! 2002-07 (C. Ethe, G. Madec) LIM-2 (F90 rewriting)
	8	!! 3.0 ! 2005-11 (M. Vancoppenolle) LIM-3 : Multi-layer thermodynamics + salinity variations
[2528]	9	!! - ! 2007-04 (M. Vancoppenolle) add lim_thd_glohec, lim_thd_con_dh and lim_thd_con_dif
[4688]	10	!! 3.2 ! 2009-07 (M. Vancoppenolle, Y. Aksenov, G. Madec) bug correction in wfx_snw
[2528]	11	!! 3.3 ! 2010-11 (G. Madec) corrected snow melting heat (due to factor betas)
[2715]	12	!! 4.0 ! 2011-02 (G. Madec) dynamical allocation
[4161]	13	!! - ! 2012-05 (C. Rousset) add penetration solar flux
[1572]	14	!!----------------------------------------------------------------------
[825]	15	#if defined key_lim3
	16	!!----------------------------------------------------------------------
[834]	17	!! 'key_lim3' LIM3 sea-ice model
[825]	18	!!----------------------------------------------------------------------
[3625]	19	!! lim_thd : thermodynamic of sea ice
	20	!! lim_thd_init : initialisation of sea-ice thermodynamic
[825]	21	!!----------------------------------------------------------------------
[3625]	22	USE phycst ! physical constants
	23	USE dom_oce ! ocean space and time domain variables
[4990]	24	USE oce , ONLY : fraqsr_1lev
[3625]	25	USE ice ! LIM: sea-ice variables
	26	USE par_ice ! LIM: sea-ice parameters
	27	USE sbc_oce ! Surface boundary condition: ocean fields
	28	USE sbc_ice ! Surface boundary condition: ice fields
	29	USE thd_ice ! LIM thermodynamic sea-ice variables
	30	USE dom_ice ! LIM sea-ice domain
	31	USE domvvl ! domain: variable volume level
	32	USE limthd_dif ! LIM: thermodynamics, vertical diffusion
	33	USE limthd_dh ! LIM: thermodynamics, ice and snow thickness variation
	34	USE limthd_sal ! LIM: thermodynamics, ice salinity
	35	USE limthd_ent ! LIM: thermodynamics, ice enthalpy redistribution
	36	USE limtab ! LIM: 1D <==> 2D transformation
	37	USE limvar ! LIM: sea-ice variables
	38	USE lbclnk ! lateral boundary condition - MPP links
	39	USE lib_mpp ! MPP library
	40	USE wrk_nemo ! work arrays
	41	USE in_out_manager ! I/O manager
	42	USE prtctl ! Print control
	43	USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined)
[4161]	44	USE timing ! Timing
[4688]	45	USE limcons ! conservation tests
[825]	46
	47	IMPLICIT NONE
	48	PRIVATE
	49
[2528]	50	PUBLIC lim_thd ! called by limstp module
	51	PUBLIC lim_thd_init ! called by iceini module
[825]	52
	53	!! * Substitutions
	54	# include "domzgr_substitute.h90"
	55	# include "vectopt_loop_substitute.h90"
	56	!!----------------------------------------------------------------------
[2528]	57	!! NEMO/LIM3 3.3 , UCL - NEMO Consortium (2010)
[1156]	58	!! $Id$
[2528]	59	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[825]	60	!!----------------------------------------------------------------------
	61	CONTAINS
	62
[921]	63	SUBROUTINE lim_thd( kt )
[825]	64	!!-------------------------------------------------------------------
	65	!! * ROUTINE lim_thd *
	66	!!
[4990]	67	!! ** Purpose : This routine manages ice thermodynamics
[825]	68	!!
	69	!! ** Action : - Initialisation of some variables
	70	!! - Some preliminary computation (oceanic heat flux
	71	!! at the ice base, snow acc.,heat budget of the leads)
	72	!! - selection of the icy points and put them in an array
[4990]	73	!! - call lim_thd_dif for vertical heat diffusion
	74	!! - call lim_thd_dh for vertical ice growth and melt
	75	!! - call lim_thd_ent for enthalpy remapping
	76	!! - call lim_thd_sal for ice desalination
	77	!! - call lim_thd_temp to retrieve temperature from ice enthalpy
[825]	78	!! - back to the geographic grid
	79	!!
[4990]	80	!! ** References :
[1572]	81	!!---------------------------------------------------------------------
	82	INTEGER, INTENT(in) :: kt ! number of iteration
[825]	83	!!
[4688]	84	INTEGER :: ji, jj, jk, jl ! dummy loop indices
	85	INTEGER :: nbpb ! nb of icy pts for thermo. cal.
	86	INTEGER :: ii, ij ! temporary dummy loop index
	87	REAL(wp) :: zfric_umin = 0._wp ! lower bound for the friction velocity (cice value=5.e-04)
	88	REAL(wp) :: zch = 0.0057_wp ! heat transfer coefficient
[4990]	89	REAL(wp) :: zareamin
[4688]	90	REAL(wp) :: zfric_u, zqld, zqfr
	91	!
	92	REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b
[4990]	93	!
	94	REAL(wp), POINTER, DIMENSION(:,:) :: zqsr, zqns
[825]	95	!!-------------------------------------------------------------------
[4990]	96	CALL wrk_alloc( jpi, jpj, zqsr, zqns )
	97
[4161]	98	IF( nn_timing == 1 ) CALL timing_start('limthd')
[2715]	99
[4688]	100	! conservation test
	101	IF( ln_limdiahsb ) CALL lim_cons_hsm(0, 'limthd', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b)
[4161]	102
[4990]	103	!------------------------------------------------------------------------!
	104	! 1) Initialization of some variables !
	105	!------------------------------------------------------------------------!
	106	ftr_ice(:,:,:) = 0._wp ! part of solar radiation transmitted through the ice
[825]	107
[4990]	108
[825]	109	!--------------------
	110	! 1.2) Heat content
	111	!--------------------
[1572]	112	! Change the units of heat content; from global units to J.m3
[825]	113	DO jl = 1, jpl
[921]	114	DO jk = 1, nlay_i
	115	DO jj = 1, jpj
	116	DO ji = 1, jpi
	117	!0 if no ice and 1 if yes
[4990]	118	rswitch = 1.0 - MAX( 0.0 , SIGN( 1.0 , - v_i(ji,jj,jl) + epsi10 ) )
[4688]	119	!Energy of melting q(S,T) [J.m-3]
[4990]	120	e_i(ji,jj,jk,jl) = rswitch * e_i(ji,jj,jk,jl) / ( area(ji,jj) * MAX( v_i(ji,jj,jl) , epsi10 ) ) * REAL( nlay_i )
[4688]	121	!convert units ! very important that this line is here
	122	e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * unit_fac
[921]	123	END DO
[825]	124	END DO
[921]	125	END DO
	126	DO jk = 1, nlay_s
	127	DO jj = 1, jpj
	128	DO ji = 1, jpi
	129	!0 if no ice and 1 if yes
[4990]	130	rswitch = 1.0 - MAX( 0.0 , SIGN( 1.0 , - v_s(ji,jj,jl) + epsi10 ) )
[4688]	131	!Energy of melting q(S,T) [J.m-3]
[4990]	132	e_s(ji,jj,jk,jl) = rswitch * e_s(ji,jj,jk,jl) / ( area(ji,jj) * MAX( v_s(ji,jj,jl) , epsi10 ) ) * REAL( nlay_s )
[921]	133	!convert units ! very important that this line is here
[4688]	134	e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) * unit_fac
[921]	135	END DO
[825]	136	END DO
[921]	137	END DO
[825]	138	END DO
	139
[921]	140	! 2) Partial computation of forcing for the thermodynamic sea ice model. !
	141	!-----------------------------------------------------------------------------!
[825]	142
[4990]	143	!--- Ocean solar and non solar fluxes to be used in zqld
	144	IF ( .NOT. lk_cpl ) THEN ! --- forced case, fluxes to the lead are the same as over the ocean
	145	!
	146	zqsr(:,:) = qsr(:,:) ; zqns(:,:) = qns(:,:)
	147	!
	148	ELSE ! --- coupled case, fluxes to the lead are total - intercepted
	149	!
	150	zqsr(:,:) = qsr_tot(:,:) ; zqns(:,:) = qns_tot(:,:)
	151	!
	152	DO jl = 1, jpl
	153	DO jj = 1, jpj
	154	DO ji = 1, jpi
	155	zqsr(ji,jj) = zqsr(ji,jj) - qsr_ice(ji,jj,jl) * a_i_b(ji,jj,jl)
	156	zqns(ji,jj) = zqns(ji,jj) - qns_ice(ji,jj,jl) * a_i_b(ji,jj,jl)
	157	END DO
	158	END DO
	159	END DO
	160	!
	161	ENDIF
	162
[921]	163	!CDIR NOVERRCHK
	164	DO jj = 1, jpj
	165	!CDIR NOVERRCHK
	166	DO ji = 1, jpi
[4990]	167	rswitch = tms(ji,jj) * ( 1._wp - MAX( 0._wp , SIGN( 1._wp , - at_i(ji,jj) + epsi10 ) ) ) ! 0 if no ice
[2528]	168	!
[921]	169	! ! solar irradiance transmission at the mixed layer bottom and used in the lead heat budget
	170	! ! practically no "direct lateral ablation"
	171	!
	172	! ! net downward heat flux from the ice to the ocean, expressed as a function of ocean
	173	! ! temperature and turbulent mixing (McPhee, 1992)
[4688]	174	!
[4990]	175
[4688]	176	! --- Energy received in the lead, zqld is defined everywhere (J.m-2) --- !
[4990]	177	! REMARK valid at least in forced mode from clem
	178	! precip is included in qns but not in qns_ice
	179	IF ( lk_cpl ) THEN
	180	zqld = tms(ji,jj) * rdt_ice * &
	181	& ( zqsr(ji,jj) * fraqsr_1lev(ji,jj) + zqns(ji,jj) & ! pfrld already included in coupled mode
	182	& + ( pfrld(ji,jj)*betas - pfrld(ji,jj) ) sprecip(ji,jj) * & ! heat content of precip
	183	& ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) &
	184	& + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt ) )
	185	ELSE
	186	zqld = tms(ji,jj) * rdt_ice * &
	187	& ( pfrld(ji,jj) * ( zqsr(ji,jj) * fraqsr_1lev(ji,jj) + zqns(ji,jj) ) &
	188	& + ( pfrld(ji,jj)*betas - pfrld(ji,jj) ) sprecip(ji,jj) * & ! heat content of precip
	189	& ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) &
	190	& + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt ) )
	191	ENDIF
[825]	192
[4688]	193	!-- Energy needed to bring ocean surface layer until its freezing (<0, J.m-2) --- !
	194	zqfr = tms(ji,jj) * rau0 * rcp * fse3t_m(ji,jj) * ( t_bo(ji,jj) - ( sst_m(ji,jj) + rt0 ) )
	195
	196	!-- Energy Budget of the leads (J.m-2). Must be < 0 to form ice
	197	qlead(ji,jj) = MIN( 0._wp , zqld - zqfr )
	198
	199	! If there is ice and leads are warming, then transfer energy from the lead budget and use it for bottom melting
	200	IF( at_i(ji,jj) > epsi10 .AND. zqld > 0._wp ) THEN
	201	fhld (ji,jj) = zqld * r1_rdtice / at_i(ji,jj) ! divided by at_i since this is (re)multiplied by a_i in limthd_dh.F90
	202	qlead(ji,jj) = 0._wp
[4990]	203	ELSE
	204	fhld (ji,jj) = 0._wp
[4688]	205	ENDIF
[2528]	206	!
[4688]	207	!-- Energy from the turbulent oceanic heat flux --- !
	208	!clem zfric_u = MAX ( MIN( SQRT( ust2s(ji,jj) ) , zfric_umax ) , zfric_umin )
	209	zfric_u = MAX( SQRT( ust2s(ji,jj) ), zfric_umin )
[4990]	210	fhtur(ji,jj) = MAX( 0._wp, rswitch * rau0 * rcp * zch * zfric_u * ( ( sst_m(ji,jj) + rt0 ) - t_bo(ji,jj) ) ) ! W.m-2
[4688]	211	! upper bound for fhtur: we do not want SST to drop below Tfreeze.
	212	! So we say that the heat retrieved from the ocean (fhtur+fhld) must be < to the heat necessary to reach Tfreeze (zqfr)
	213	! This is not a clean budget, so that should be corrected at some point
[4990]	214	fhtur(ji,jj) = rswitch * MIN( fhtur(ji,jj), - fhld(ji,jj) - zqfr * r1_rdtice / MAX( at_i(ji,jj), epsi10 ) )
[4688]	215
	216	! -----------------------------------------
	217	! Net heat flux on top of ice-ocean [W.m-2]
	218	! -----------------------------------------
	219	! First step here : heat flux at the ocean surface + precip
	220	! Second step below : heat flux at the ice surface (after limthd_dif)
	221	hfx_in(ji,jj) = hfx_in(ji,jj) &
	222	! heat flux above the ocean
[4990]	223	& + pfrld(ji,jj) * ( zqns(ji,jj) + zqsr(ji,jj) ) &
[4688]	224	! latent heat of precip (note that precip is included in qns but not in qns_ice)
	225	& + ( 1._wp - pfrld(ji,jj) ) * sprecip(ji,jj) * ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) &
	226	& + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt )
	227
	228	! -----------------------------------------------------------------------------
	229	! Net heat flux that is retroceded to the ocean or taken from the ocean [W.m-2]
	230	! -----------------------------------------------------------------------------
	231	! First step here : non solar + precip - qlead - qturb
	232	! Second step in limthd_dh : heat remaining if total melt (zq_rema)
	233	! Third step in limsbc : heat from ice-ocean mass exchange (zf_mass) + solar
[4990]	234	hfx_out(ji,jj) = hfx_out(ji,jj) &
[4688]	235	! Non solar heat flux received by the ocean
[4990]	236	& + pfrld(ji,jj) * qns(ji,jj) &
[4688]	237	! latent heat of precip (note that precip is included in qns but not in qns_ice)
[4990]	238	& + ( pfrld(ji,jj)*betas - pfrld(ji,jj) ) sprecip(ji,jj) &
	239	& * ( cpic * ( MIN( tatm_ice(ji,jj), rt0_snow ) - rtt ) - lfus ) &
	240	& + ( 1._wp - pfrld(ji,jj) ) * ( tprecip(ji,jj) - sprecip(ji,jj) ) * rcp * ( tatm_ice(ji,jj) - rtt ) &
[4688]	241	! heat flux taken from the ocean where there is open water ice formation
[4990]	242	& - qlead(ji,jj) * r1_rdtice &
[4688]	243	! heat flux taken from the ocean during bottom growth/melt (fhld should be 0 while bott growth)
[4990]	244	& - at_i(ji,jj) * fhtur(ji,jj) &
[4688]	245	& - at_i(ji,jj) * fhld(ji,jj)
	246
[825]	247	END DO
	248	END DO
	249
[921]	250	!------------------------------------------------------------------------------!
	251	! 3) Select icy points and fulfill arrays for the vectorial grid.
	252	!------------------------------------------------------------------------------!
[825]	253
	254	DO jl = 1, jpl !loop over ice categories
	255
[921]	256	IF( kt == nit000 .AND. lwp ) THEN
	257	WRITE(numout,*) ' lim_thd : transfer to 1D vectors. Category no : ', jl
	258	WRITE(numout,*) ' ~~~~~~~~'
	259	ENDIF
[825]	260
[4333]	261	zareamin = epsi10
[825]	262	nbpb = 0
	263	DO jj = 1, jpj
	264	DO ji = 1, jpi
	265	IF ( a_i(ji,jj,jl) .gt. zareamin ) THEN
	266	nbpb = nbpb + 1
	267	npb(nbpb) = (jj - 1) * jpi + ji
	268	ENDIF
	269	END DO
	270	END DO
	271
[4333]	272	! debug point to follow
	273	jiindex_1d = 0
	274	IF( ln_nicep ) THEN
	275	DO ji = mi0(jiindx), mi1(jiindx)
	276	DO jj = mj0(jjindx), mj1(jjindx)
	277	jiindex_1d = (jj - 1) * jpi + ji
[4688]	278	WRITE(numout,*) ' lim_thd : Category no : ', jl
[4333]	279	END DO
	280	END DO
	281	ENDIF
	282
[921]	283	!------------------------------------------------------------------------------!
	284	! 4) Thermodynamic computation
	285	!------------------------------------------------------------------------------!
[825]	286
[2715]	287	IF( lk_mpp ) CALL mpp_ini_ice( nbpb , numout )
[869]	288
[1572]	289	IF( nbpb > 0 ) THEN ! If there is no ice, do nothing.
[825]	290
[921]	291	!-------------------------
	292	! 4.1 Move to 1D arrays
	293	!-------------------------
[825]	294
[4872]	295	CALL tab_2d_1d( nbpb, at_i_1d (1:nbpb), at_i , jpi, jpj, npb(1:nbpb) )
	296	CALL tab_2d_1d( nbpb, a_i_1d (1:nbpb), a_i(:,:,jl) , jpi, jpj, npb(1:nbpb) )
	297	CALL tab_2d_1d( nbpb, ht_i_1d (1:nbpb), ht_i(:,:,jl) , jpi, jpj, npb(1:nbpb) )
	298	CALL tab_2d_1d( nbpb, ht_s_1d (1:nbpb), ht_s(:,:,jl) , jpi, jpj, npb(1:nbpb) )
[825]	299
[4872]	300	CALL tab_2d_1d( nbpb, t_su_1d (1:nbpb), t_su(:,:,jl) , jpi, jpj, npb(1:nbpb) )
	301	CALL tab_2d_1d( nbpb, sm_i_1d (1:nbpb), sm_i(:,:,jl) , jpi, jpj, npb(1:nbpb) )
[825]	302	DO jk = 1, nlay_s
[4872]	303	CALL tab_2d_1d( nbpb, t_s_1d(1:nbpb,jk), t_s(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) )
	304	CALL tab_2d_1d( nbpb, q_s_1d(1:nbpb,jk), e_s(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) )
[825]	305	END DO
	306	DO jk = 1, nlay_i
[4872]	307	CALL tab_2d_1d( nbpb, t_i_1d(1:nbpb,jk), t_i(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) )
	308	CALL tab_2d_1d( nbpb, q_i_1d(1:nbpb,jk), e_i(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) )
	309	CALL tab_2d_1d( nbpb, s_i_1d(1:nbpb,jk), s_i(:,:,jk,jl) , jpi, jpj, npb(1:nbpb) )
[825]	310	END DO
	311
[1572]	312	CALL tab_2d_1d( nbpb, tatm_ice_1d(1:nbpb), tatm_ice(:,:) , jpi, jpj, npb(1:nbpb) )
	313	CALL tab_2d_1d( nbpb, qsr_ice_1d (1:nbpb), qsr_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) )
	314	CALL tab_2d_1d( nbpb, fr1_i0_1d (1:nbpb), fr1_i0 , jpi, jpj, npb(1:nbpb) )
	315	CALL tab_2d_1d( nbpb, fr2_i0_1d (1:nbpb), fr2_i0 , jpi, jpj, npb(1:nbpb) )
[4688]	316	CALL tab_2d_1d( nbpb, qns_ice_1d (1:nbpb), qns_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) )
	317	CALL tab_2d_1d( nbpb, ftr_ice_1d (1:nbpb), ftr_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) )
	318	IF( .NOT. lk_cpl ) THEN
	319	CALL tab_2d_1d( nbpb, qla_ice_1d (1:nbpb), qla_ice(:,:,jl) , jpi, jpj, npb(1:nbpb) )
	320	CALL tab_2d_1d( nbpb, dqla_ice_1d(1:nbpb), dqla_ice(:,:,jl), jpi, jpj, npb(1:nbpb) )
	321	ENDIF
[3625]	322	CALL tab_2d_1d( nbpb, dqns_ice_1d(1:nbpb), dqns_ice(:,:,jl), jpi, jpj, npb(1:nbpb) )
[4872]	323	CALL tab_2d_1d( nbpb, t_bo_1d (1:nbpb), t_bo , jpi, jpj, npb(1:nbpb) )
[3625]	324	CALL tab_2d_1d( nbpb, sprecip_1d (1:nbpb), sprecip , jpi, jpj, npb(1:nbpb) )
[4688]	325	CALL tab_2d_1d( nbpb, fhtur_1d (1:nbpb), fhtur , jpi, jpj, npb(1:nbpb) )
	326	CALL tab_2d_1d( nbpb, qlead_1d (1:nbpb), qlead , jpi, jpj, npb(1:nbpb) )
	327	CALL tab_2d_1d( nbpb, fhld_1d (1:nbpb), fhld , jpi, jpj, npb(1:nbpb) )
[825]	328
[4688]	329	CALL tab_2d_1d( nbpb, wfx_snw_1d (1:nbpb), wfx_snw , jpi, jpj, npb(1:nbpb) )
	330	CALL tab_2d_1d( nbpb, wfx_sub_1d (1:nbpb), wfx_sub , jpi, jpj, npb(1:nbpb) )
	331
	332	CALL tab_2d_1d( nbpb, wfx_bog_1d (1:nbpb), wfx_bog , jpi, jpj, npb(1:nbpb) )
	333	CALL tab_2d_1d( nbpb, wfx_bom_1d (1:nbpb), wfx_bom , jpi, jpj, npb(1:nbpb) )
	334	CALL tab_2d_1d( nbpb, wfx_sum_1d (1:nbpb), wfx_sum , jpi, jpj, npb(1:nbpb) )
	335	CALL tab_2d_1d( nbpb, wfx_sni_1d (1:nbpb), wfx_sni , jpi, jpj, npb(1:nbpb) )
	336	CALL tab_2d_1d( nbpb, wfx_res_1d (1:nbpb), wfx_res , jpi, jpj, npb(1:nbpb) )
	337	CALL tab_2d_1d( nbpb, wfx_spr_1d (1:nbpb), wfx_spr , jpi, jpj, npb(1:nbpb) )
	338
	339	CALL tab_2d_1d( nbpb, sfx_bog_1d (1:nbpb), sfx_bog , jpi, jpj, npb(1:nbpb) )
	340	CALL tab_2d_1d( nbpb, sfx_bom_1d (1:nbpb), sfx_bom , jpi, jpj, npb(1:nbpb) )
	341	CALL tab_2d_1d( nbpb, sfx_sum_1d (1:nbpb), sfx_sum , jpi, jpj, npb(1:nbpb) )
	342	CALL tab_2d_1d( nbpb, sfx_sni_1d (1:nbpb), sfx_sni , jpi, jpj, npb(1:nbpb) )
[3625]	343	CALL tab_2d_1d( nbpb, sfx_bri_1d (1:nbpb), sfx_bri , jpi, jpj, npb(1:nbpb) )
[4688]	344	CALL tab_2d_1d( nbpb, sfx_res_1d (1:nbpb), sfx_res , jpi, jpj, npb(1:nbpb) )
[825]	345
[4688]	346	CALL tab_2d_1d( nbpb, hfx_thd_1d (1:nbpb), hfx_thd , jpi, jpj, npb(1:nbpb) )
	347	CALL tab_2d_1d( nbpb, hfx_spr_1d (1:nbpb), hfx_spr , jpi, jpj, npb(1:nbpb) )
	348	CALL tab_2d_1d( nbpb, hfx_sum_1d (1:nbpb), hfx_sum , jpi, jpj, npb(1:nbpb) )
	349	CALL tab_2d_1d( nbpb, hfx_bom_1d (1:nbpb), hfx_bom , jpi, jpj, npb(1:nbpb) )
	350	CALL tab_2d_1d( nbpb, hfx_bog_1d (1:nbpb), hfx_bog , jpi, jpj, npb(1:nbpb) )
	351	CALL tab_2d_1d( nbpb, hfx_dif_1d (1:nbpb), hfx_dif , jpi, jpj, npb(1:nbpb) )
	352	CALL tab_2d_1d( nbpb, hfx_opw_1d (1:nbpb), hfx_opw , jpi, jpj, npb(1:nbpb) )
	353	CALL tab_2d_1d( nbpb, hfx_snw_1d (1:nbpb), hfx_snw , jpi, jpj, npb(1:nbpb) )
	354	CALL tab_2d_1d( nbpb, hfx_sub_1d (1:nbpb), hfx_sub , jpi, jpj, npb(1:nbpb) )
	355	CALL tab_2d_1d( nbpb, hfx_err_1d (1:nbpb), hfx_err , jpi, jpj, npb(1:nbpb) )
	356	CALL tab_2d_1d( nbpb, hfx_res_1d (1:nbpb), hfx_res , jpi, jpj, npb(1:nbpb) )
	357	CALL tab_2d_1d( nbpb, hfx_err_rem_1d (1:nbpb), hfx_err_rem , jpi, jpj, npb(1:nbpb) )
	358
[921]	359	!--------------------------------
	360	! 4.3) Thermodynamic processes
	361	!--------------------------------
	362
[4688]	363	!---------------------------------!
	364	! Ice/Snow Temperature profile !
	365	!---------------------------------!
	366	CALL lim_thd_dif( 1, nbpb )
[921]	367
[4688]	368	!---------------------------------!
	369	! Ice/Snow thicnkess !
	370	!---------------------------------!
	371	CALL lim_thd_dh( 1, nbpb )
[825]	372
[4688]	373	! --- Ice enthalpy remapping --- !
[4872]	374	CALL lim_thd_ent( 1, nbpb, q_i_1d(1:nbpb,:) )
[4688]	375
	376	!---------------------------------!
	377	! --- Ice salinity --- !
	378	!---------------------------------!
	379	CALL lim_thd_sal( 1, nbpb )
[825]	380
[4688]	381	!---------------------------------!
	382	! --- temperature update --- !
	383	!---------------------------------!
	384	CALL lim_thd_temp( 1, nbpb )
[825]	385
[921]	386	!--------------------------------
	387	! 4.4) Move 1D to 2D vectors
	388	!--------------------------------
[825]	389
[4872]	390	CALL tab_1d_2d( nbpb, at_i , npb, at_i_1d (1:nbpb) , jpi, jpj )
	391	CALL tab_1d_2d( nbpb, ht_i(:,:,jl) , npb, ht_i_1d (1:nbpb) , jpi, jpj )
	392	CALL tab_1d_2d( nbpb, ht_s(:,:,jl) , npb, ht_s_1d (1:nbpb) , jpi, jpj )
	393	CALL tab_1d_2d( nbpb, a_i (:,:,jl) , npb, a_i_1d (1:nbpb) , jpi, jpj )
	394	CALL tab_1d_2d( nbpb, t_su(:,:,jl) , npb, t_su_1d (1:nbpb) , jpi, jpj )
	395	CALL tab_1d_2d( nbpb, sm_i(:,:,jl) , npb, sm_i_1d (1:nbpb) , jpi, jpj )
[825]	396	DO jk = 1, nlay_s
[4872]	397	CALL tab_1d_2d( nbpb, t_s(:,:,jk,jl), npb, t_s_1d (1:nbpb,jk), jpi, jpj)
	398	CALL tab_1d_2d( nbpb, e_s(:,:,jk,jl), npb, q_s_1d (1:nbpb,jk), jpi, jpj)
[825]	399	END DO
	400	DO jk = 1, nlay_i
[4872]	401	CALL tab_1d_2d( nbpb, t_i(:,:,jk,jl), npb, t_i_1d (1:nbpb,jk), jpi, jpj)
	402	CALL tab_1d_2d( nbpb, e_i(:,:,jk,jl), npb, q_i_1d (1:nbpb,jk), jpi, jpj)
	403	CALL tab_1d_2d( nbpb, s_i(:,:,jk,jl), npb, s_i_1d (1:nbpb,jk), jpi, jpj)
[825]	404	END DO
[4688]	405	CALL tab_1d_2d( nbpb, qlead , npb, qlead_1d (1:nbpb) , jpi, jpj )
	406
	407	CALL tab_1d_2d( nbpb, wfx_snw , npb, wfx_snw_1d(1:nbpb) , jpi, jpj )
	408	CALL tab_1d_2d( nbpb, wfx_sub , npb, wfx_sub_1d(1:nbpb) , jpi, jpj )
	409
	410	CALL tab_1d_2d( nbpb, wfx_bog , npb, wfx_bog_1d(1:nbpb) , jpi, jpj )
	411	CALL tab_1d_2d( nbpb, wfx_bom , npb, wfx_bom_1d(1:nbpb) , jpi, jpj )
	412	CALL tab_1d_2d( nbpb, wfx_sum , npb, wfx_sum_1d(1:nbpb) , jpi, jpj )
	413	CALL tab_1d_2d( nbpb, wfx_sni , npb, wfx_sni_1d(1:nbpb) , jpi, jpj )
	414	CALL tab_1d_2d( nbpb, wfx_res , npb, wfx_res_1d(1:nbpb) , jpi, jpj )
	415	CALL tab_1d_2d( nbpb, wfx_spr , npb, wfx_spr_1d(1:nbpb) , jpi, jpj )
	416
	417	CALL tab_1d_2d( nbpb, sfx_bog , npb, sfx_bog_1d(1:nbpb) , jpi, jpj )
	418	CALL tab_1d_2d( nbpb, sfx_bom , npb, sfx_bom_1d(1:nbpb) , jpi, jpj )
	419	CALL tab_1d_2d( nbpb, sfx_sum , npb, sfx_sum_1d(1:nbpb) , jpi, jpj )
	420	CALL tab_1d_2d( nbpb, sfx_sni , npb, sfx_sni_1d(1:nbpb) , jpi, jpj )
	421	CALL tab_1d_2d( nbpb, sfx_res , npb, sfx_res_1d(1:nbpb) , jpi, jpj )
[3625]	422	CALL tab_1d_2d( nbpb, sfx_bri , npb, sfx_bri_1d(1:nbpb) , jpi, jpj )
[4688]	423
	424	CALL tab_1d_2d( nbpb, hfx_thd , npb, hfx_thd_1d(1:nbpb) , jpi, jpj )
	425	CALL tab_1d_2d( nbpb, hfx_spr , npb, hfx_spr_1d(1:nbpb) , jpi, jpj )
	426	CALL tab_1d_2d( nbpb, hfx_sum , npb, hfx_sum_1d(1:nbpb) , jpi, jpj )
	427	CALL tab_1d_2d( nbpb, hfx_bom , npb, hfx_bom_1d(1:nbpb) , jpi, jpj )
	428	CALL tab_1d_2d( nbpb, hfx_bog , npb, hfx_bog_1d(1:nbpb) , jpi, jpj )
	429	CALL tab_1d_2d( nbpb, hfx_dif , npb, hfx_dif_1d(1:nbpb) , jpi, jpj )
	430	CALL tab_1d_2d( nbpb, hfx_opw , npb, hfx_opw_1d(1:nbpb) , jpi, jpj )
	431	CALL tab_1d_2d( nbpb, hfx_snw , npb, hfx_snw_1d(1:nbpb) , jpi, jpj )
	432	CALL tab_1d_2d( nbpb, hfx_sub , npb, hfx_sub_1d(1:nbpb) , jpi, jpj )
	433	CALL tab_1d_2d( nbpb, hfx_err , npb, hfx_err_1d(1:nbpb) , jpi, jpj )
	434	CALL tab_1d_2d( nbpb, hfx_res , npb, hfx_res_1d(1:nbpb) , jpi, jpj )
	435	CALL tab_1d_2d( nbpb, hfx_err_rem , npb, hfx_err_rem_1d(1:nbpb) , jpi, jpj )
[2528]	436	!
[4688]	437	CALL tab_1d_2d( nbpb, qns_ice(:,:,jl), npb, qns_ice_1d(1:nbpb) , jpi, jpj)
	438	CALL tab_1d_2d( nbpb, ftr_ice(:,:,jl), npb, ftr_ice_1d(1:nbpb) , jpi, jpj )
[2528]	439	!
[1572]	440	IF( lk_mpp ) CALL mpp_comm_free( ncomm_ice ) !RB necessary ??
	441	ENDIF
	442	!
	443	END DO
[825]	444
[921]	445	!------------------------------------------------------------------------------!
	446	! 5) Global variables, diagnostics
	447	!------------------------------------------------------------------------------!
[825]	448
	449	!------------------------
	450	! 5.1) Ice heat content
	451	!------------------------
[4688]	452	! Enthalpies are global variables we have to readjust the units (heat content in Joules)
[825]	453	DO jl = 1, jpl
[921]	454	DO jk = 1, nlay_i
[4688]	455	e_i(:,:,jk,jl) = e_i(:,:,jk,jl) * area(:,:) * a_i(:,:,jl) * ht_i(:,:,jl) / ( unit_fac * REAL( nlay_i ) )
[1572]	456	END DO
	457	END DO
[825]	458
	459	!------------------------
	460	! 5.2) Snow heat content
	461	!------------------------
[4688]	462	! Enthalpies are global variables we have to readjust the units (heat content in Joules)
[825]	463	DO jl = 1, jpl
	464	DO jk = 1, nlay_s
[4688]	465	e_s(:,:,jk,jl) = e_s(:,:,jk,jl) * area(:,:) * a_i(:,:,jl) * ht_s(:,:,jl) / ( unit_fac * REAL( nlay_s ) )
[1572]	466	END DO
	467	END DO
[825]	468
	469	!----------------------------------
	470	! 5.3) Change thickness to volume
	471	!----------------------------------
	472	CALL lim_var_eqv2glo
	473
	474	!--------------------------------------------
	475	! 5.4) Diagnostic thermodynamic growth rates
	476	!--------------------------------------------
[2528]	477	IF(ln_ctl) THEN ! Control print
[867]	478	CALL prt_ctl_info(' ')
	479	CALL prt_ctl_info(' - Cell values : ')
	480	CALL prt_ctl_info(' ~~~~~~~~~~~~~ ')
[863]	481	CALL prt_ctl(tab2d_1=area , clinfo1=' lim_thd : cell area :')
	482	CALL prt_ctl(tab2d_1=at_i , clinfo1=' lim_thd : at_i :')
	483	CALL prt_ctl(tab2d_1=vt_i , clinfo1=' lim_thd : vt_i :')
	484	CALL prt_ctl(tab2d_1=vt_s , clinfo1=' lim_thd : vt_s :')
	485	DO jl = 1, jpl
[867]	486	CALL prt_ctl_info(' ')
[863]	487	CALL prt_ctl_info(' - Category : ', ivar1=jl)
	488	CALL prt_ctl_info(' ~~~~~~~~~~')
	489	CALL prt_ctl(tab2d_1=a_i (:,:,jl) , clinfo1= ' lim_thd : a_i : ')
	490	CALL prt_ctl(tab2d_1=ht_i (:,:,jl) , clinfo1= ' lim_thd : ht_i : ')
	491	CALL prt_ctl(tab2d_1=ht_s (:,:,jl) , clinfo1= ' lim_thd : ht_s : ')
	492	CALL prt_ctl(tab2d_1=v_i (:,:,jl) , clinfo1= ' lim_thd : v_i : ')
	493	CALL prt_ctl(tab2d_1=v_s (:,:,jl) , clinfo1= ' lim_thd : v_s : ')
	494	CALL prt_ctl(tab2d_1=e_s (:,:,1,jl) , clinfo1= ' lim_thd : e_s : ')
	495	CALL prt_ctl(tab2d_1=t_su (:,:,jl) , clinfo1= ' lim_thd : t_su : ')
	496	CALL prt_ctl(tab2d_1=t_s (:,:,1,jl) , clinfo1= ' lim_thd : t_snow : ')
	497	CALL prt_ctl(tab2d_1=sm_i (:,:,jl) , clinfo1= ' lim_thd : sm_i : ')
	498	CALL prt_ctl(tab2d_1=smv_i (:,:,jl) , clinfo1= ' lim_thd : smv_i : ')
	499	DO jk = 1, nlay_i
[867]	500	CALL prt_ctl_info(' ')
[863]	501	CALL prt_ctl_info(' - Layer : ', ivar1=jk)
	502	CALL prt_ctl_info(' ~~~~~~~')
	503	CALL prt_ctl(tab2d_1=t_i(:,:,jk,jl) , clinfo1= ' lim_thd : t_i : ')
	504	CALL prt_ctl(tab2d_1=e_i(:,:,jk,jl) , clinfo1= ' lim_thd : e_i : ')
	505	END DO
	506	END DO
	507	ENDIF
[2528]	508	!
[4990]	509	!
	510	CALL wrk_dealloc( jpi, jpj, zqsr, zqns )
	511
	512	!
[4688]	513	! conservation test
	514	IF( ln_limdiahsb ) CALL lim_cons_hsm(1, 'limthd', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b)
[4161]	515	!
	516	IF( nn_timing == 1 ) CALL timing_stop('limthd')
[4990]	517
[4688]	518	END SUBROUTINE lim_thd
[825]	519
[4688]	520	SUBROUTINE lim_thd_temp( kideb, kiut )
[825]	521	!!-----------------------------------------------------------------------
[4688]	522	!! * ROUTINE lim_thd_temp *
[825]	523	!!
[4688]	524	!! ** Purpose : Computes sea ice temperature (Kelvin) from enthalpy
[825]	525	!!
	526	!! ** Method : Formula (Bitz and Lipscomb, 1999)
	527	!!-------------------------------------------------------------------
[1572]	528	INTEGER, INTENT(in) :: kideb, kiut ! bounds for the spatial loop
	529	!!
[2715]	530	INTEGER :: ji, jk ! dummy loop indices
[4990]	531	REAL(wp) :: ztmelts, zaaa, zbbb, zccc, zdiscrim ! local scalar
[825]	532	!!-------------------------------------------------------------------
[4688]	533	! Recover ice temperature
	534	DO jk = 1, nlay_i
[825]	535	DO ji = kideb, kiut
[4872]	536	ztmelts = -tmut * s_i_1d(ji,jk) + rtt
[4688]	537	! Conversion q(S,T) -> T (second order equation)
	538	zaaa = cpic
[4872]	539	zbbb = ( rcp - cpic ) * ( ztmelts - rtt ) + q_i_1d(ji,jk) / rhoic - lfus
[4688]	540	zccc = lfus * ( ztmelts - rtt )
	541	zdiscrim = SQRT( MAX( zbbb * zbbb - 4._wp * zaaa * zccc, 0._wp ) )
[4990]	542	t_i_1d(ji,jk) = rtt - ( zbbb + zdiscrim ) / ( 2._wp * zaaa )
[4688]	543
	544	! mask temperature
[4990]	545	rswitch = 1._wp - MAX( 0._wp , SIGN( 1._wp , - ht_i_1d(ji) ) )
	546	t_i_1d(ji,jk) = rswitch * t_i_1d(ji,jk) + ( 1._wp - rswitch ) * rtt
[4688]	547	END DO
	548	END DO
[825]	549
[4688]	550	END SUBROUTINE lim_thd_temp
[825]	551
	552	SUBROUTINE lim_thd_init
	553	!!-----------------------------------------------------------------------
	554	!! * ROUTINE lim_thd_init *
	555	!!
	556	!! ** Purpose : Physical constants and parameters linked to the ice
[1572]	557	!! thermodynamics
[825]	558	!!
	559	!! ** Method : Read the namicethd namelist and check the ice-thermo
[1572]	560	!! parameter values called at the first timestep (nit000)
[825]	561	!!
	562	!! ** input : Namelist namicether
[2528]	563	!!-------------------------------------------------------------------
[4147]	564	INTEGER :: ios ! Local integer output status for namelist read
[5047]	565	NAMELIST/namicethd/ hiccrit, fraz_swi, maxfrazb, vfrazb, Cfrazb, &
	566	& hiclim, parsub, betas, &
[825]	567	& kappa_i, nconv_i_thd, maxer_i_thd, thcon_i_swi
	568	!!-------------------------------------------------------------------
[2528]	569	!
[1572]	570	IF(lwp) THEN
	571	WRITE(numout,*)
	572	WRITE(numout,*) 'lim_thd : Ice Thermodynamics'
	573	WRITE(numout,*) '~~~~~~~'
	574	ENDIF
[2528]	575	!
[4147]	576	REWIND( numnam_ice_ref ) ! Namelist namicethd in reference namelist : Ice thermodynamics
	577	READ ( numnam_ice_ref, namicethd, IOSTAT = ios, ERR = 901)
	578	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicethd in reference namelist', lwp )
	579
	580	REWIND( numnam_ice_cfg ) ! Namelist namicethd in configuration namelist : Ice thermodynamics
	581	READ ( numnam_ice_cfg, namicethd, IOSTAT = ios, ERR = 902 )
	582	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicethd in configuration namelist', lwp )
[4624]	583	IF(lwm) WRITE ( numoni, namicethd )
[4990]	584
	585	IF( lk_cpl .AND. parsub /= 0.0 ) CALL ctl_stop( 'In coupled mode, use parsub = 0. or send dqla' )
[2528]	586	!
[1572]	587	IF(lwp) THEN ! control print
[825]	588	WRITE(numout,*)
[1572]	589	WRITE(numout,*)' Namelist of ice parameters for ice thermodynamic computation '
[4688]	590	WRITE(numout,*)' ice thick. for lateral accretion hiccrit = ', hiccrit
[1572]	591	WRITE(numout,*)' Frazil ice thickness as a function of wind or not fraz_swi = ', fraz_swi
	592	WRITE(numout,*)' Maximum proportion of frazil ice collecting at bottom maxfrazb = ', maxfrazb
	593	WRITE(numout,*)' Thresold relative drift speed for collection of frazil vfrazb = ', vfrazb
	594	WRITE(numout,*)' Squeezing coefficient for collection of frazil Cfrazb = ', Cfrazb
	595	WRITE(numout,*)' minimum ice thickness hiclim = ', hiclim
	596	WRITE(numout,*)' numerical carac. of the scheme for diffusion in ice '
	597	WRITE(numout,*)' switch for snow sublimation (=1) or not (=0) parsub = ', parsub
	598	WRITE(numout,*)' coefficient for ice-lead partition of snowfall betas = ', betas
	599	WRITE(numout,*)' extinction radiation parameter in sea ice (1.0) kappa_i = ', kappa_i
	600	WRITE(numout,*)' maximal n. of iter. for heat diffusion computation nconv_i_thd = ', nconv_i_thd
	601	WRITE(numout,*)' maximal err. on T for heat diffusion computation maxer_i_thd = ', maxer_i_thd
	602	WRITE(numout,*)' switch for comp. of thermal conductivity in the ice thcon_i_swi = ', thcon_i_swi
[4688]	603	WRITE(numout,*)' check heat conservation in the ice/snow con_i = ', con_i
[825]	604	ENDIF
[1572]	605	!
[825]	606	END SUBROUTINE lim_thd_init
	607
	608	#else
[1572]	609	!!----------------------------------------------------------------------
[2528]	610	!! Default option Dummy module NO LIM3 sea-ice model
[1572]	611	!!----------------------------------------------------------------------
[825]	612	#endif
	613
	614	!!======================================================================
	615	END MODULE limthd

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