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icethd.F90 in NEMO/branches/2020/r4.0-HEAD_r12713_clem_dan_fixcpl/src/ICE – NEMO

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source: NEMO/branches/2020/r4.0-HEAD_r12713_clem_dan_fixcpl/src/ICE/icethd.F90 @ 12734

Last change on this file since 12734 was 12734, checked in by clem, 4 years ago
add the possibility to not use the heat contained in the leads to melt sea ice but wait for the ocean to warm up first (ln_leadhfx)
Property svn:keywords set to `Id`
File size: 34.3 KB

Rev	Line
[8586]	1	MODULE icethd
	2	!!======================================================================
	3	!! * MODULE icethd *
	4	!! sea-ice : master routine for thermodynamics
	5	!!======================================================================
[9656]	6	!! History : 1.0 ! 2000-01 (M.A. Morales Maqueda, H. Goosse, T. Fichefet) original code 1D
[9604]	7	!! 4.0 ! 2018 (many people) SI3 [aka Sea Ice cube]
[8586]	8	!!----------------------------------------------------------------------
[9570]	9	#if defined key_si3
[8586]	10	!!----------------------------------------------------------------------
[9570]	11	!! 'key_si3' SI3 sea-ice model
[8586]	12	!!----------------------------------------------------------------------
	13	!! ice_thd : thermodynamics of sea ice
	14	!! ice_thd_init : initialisation of sea-ice thermodynamics
	15	!!----------------------------------------------------------------------
	16	USE phycst ! physical constants
	17	USE dom_oce ! ocean space and time domain variables
	18	USE ice ! sea-ice: variables
	19	!!gm list trop longue ==>>> why not passage en argument d'appel ?
	20	USE sbc_oce , ONLY : sss_m, sst_m, e3t_m, utau, vtau, ssu_m, ssv_m, frq_m, qns_tot, qsr_tot, sprecip, ln_cpl
	21	USE sbc_ice , ONLY : qsr_oce, qns_oce, qemp_oce, qsr_ice, qns_ice, dqns_ice, evap_ice, qprec_ice, qevap_ice, &
[9910]	22	& qml_ice, qcn_ice, qtr_ice_top
[8586]	23	USE ice1D ! sea-ice: thermodynamics variables
	24	USE icethd_zdf ! sea-ice: vertical heat diffusion
	25	USE icethd_dh ! sea-ice: ice-snow growth and melt
	26	USE icethd_da ! sea-ice: lateral melting
	27	USE icethd_sal ! sea-ice: salinity
	28	USE icethd_ent ! sea-ice: enthalpy redistribution
	29	USE icethd_do ! sea-ice: growth in open water
[8637]	30	USE icethd_pnd ! sea-ice: melt ponds
[8586]	31	USE iceitd ! sea-ice: remapping thickness distribution
	32	USE icetab ! sea-ice: 1D <==> 2D transformation
	33	USE icevar ! sea-ice: operations
	34	USE icectl ! sea-ice: control print
	35	!
	36	USE in_out_manager ! I/O manager
	37	USE lib_mpp ! MPP library
	38	USE lib_fortran ! fortran utilities (glob_sum + no signed zero)
	39	USE lbclnk ! lateral boundary conditions (or mpp links)
	40	USE timing ! Timing
	41
	42	IMPLICIT NONE
	43	PRIVATE
	44
	45	PUBLIC ice_thd ! called by limstp module
	46	PUBLIC ice_thd_init ! called by ice_init
	47
	48	!! namelist (namthd)
	49	LOGICAL :: ln_icedH ! activate ice thickness change from growing/melting (T) or not (F)
	50	LOGICAL :: ln_icedA ! activate lateral melting param. (T) or not (F)
	51	LOGICAL :: ln_icedO ! activate ice growth in open-water (T) or not (F)
	52	LOGICAL :: ln_icedS ! activate gravity drainage and flushing (T) or not (F)
[12734]	53	LOGICAL :: ln_leadhfx ! heat in the leads is used to melt sea-ice before warming the ocean
[8586]	54
	55	!! * Substitutions
	56	# include "vectopt_loop_substitute.h90"
	57	!!----------------------------------------------------------------------
[9598]	58	!! NEMO/ICE 4.0 , NEMO Consortium (2018)
[10069]	59	!! $Id$
[10068]	60	!! Software governed by the CeCILL license (see ./LICENSE)
[8586]	61	!!----------------------------------------------------------------------
	62	CONTAINS
	63
	64	SUBROUTINE ice_thd( kt )
	65	!!-------------------------------------------------------------------
	66	!! * ROUTINE ice_thd *
	67	!!
	68	!! ** Purpose : This routine manages ice thermodynamics
	69	!!
[9604]	70	!! ** Action : - computation of oceanic sensible heat flux at the ice base
	71	!! energy budget in the leads
	72	!! net fluxes on top of ice and of ocean
	73	!! - selection of grid cells with ice
	74	!! - call ice_thd_zdf for vertical heat diffusion
	75	!! - call ice_thd_dh for vertical ice growth and melt
	76	!! - call ice_thd_pnd for melt ponds
	77	!! - call ice_thd_ent for enthalpy remapping
	78	!! - call ice_thd_sal for ice desalination
	79	!! - call ice_thd_temp to retrieve temperature from ice enthalpy
[9750]	80	!! - call ice_thd_mono for extra lateral ice melt if active virtual thickness distribution
[9604]	81	!! - call ice_thd_da for lateral ice melt
[8586]	82	!! - back to the geographic grid
[9604]	83	!! - call ice_thd_rem for remapping thickness distribution
	84	!! - call ice_thd_do for ice growth in leads
[8637]	85	!!-------------------------------------------------------------------
[8586]	86	INTEGER, INTENT(in) :: kt ! number of iteration
	87	!
	88	INTEGER :: ji, jj, jk, jl ! dummy loop indices
	89	REAL(wp) :: zfric_u, zqld, zqfr, zqfr_neg
	90	REAL(wp), PARAMETER :: zfric_umin = 0._wp ! lower bound for the friction velocity (cice value=5.e-04)
	91	REAL(wp), PARAMETER :: zch = 0.0057_wp ! heat transfer coefficient
	92	REAL(wp), DIMENSION(jpi,jpj) :: zu_io, zv_io, zfric ! ice-ocean velocity (m/s) and frictional velocity (m2/s2)
	93	!
	94	!!-------------------------------------------------------------------
	95	! controls
[9124]	96	IF( ln_timing ) CALL timing_start('icethd') ! timing
	97	IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icethd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation
[11536]	98	IF( ln_icediachk ) CALL ice_cons2D (0, 'icethd', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft) ! conservation
[8586]	99
	100	IF( kt == nit000 .AND. lwp ) THEN
	101	WRITE(numout,*)
	102	WRITE(numout,*) 'ice_thd: sea-ice thermodynamics'
	103	WRITE(numout,*) '~~~~~~~'
	104	ENDIF
	105
	106	!---------------------------------------------!
	107	! computation of friction velocity at T points
	108	!---------------------------------------------!
	109	IF( ln_icedyn ) THEN
	110	zu_io(:,:) = u_ice(:,:) - ssu_m(:,:)
	111	zv_io(:,:) = v_ice(:,:) - ssv_m(:,:)
	112	DO jj = 2, jpjm1
	113	DO ji = fs_2, fs_jpim1
	114	zfric(ji,jj) = rn_cio * ( 0.5_wp * &
	115	& ( zu_io(ji,jj) * zu_io(ji,jj) + zu_io(ji-1,jj) * zu_io(ji-1,jj) &
	116	& + zv_io(ji,jj) * zv_io(ji,jj) + zv_io(ji,jj-1) * zv_io(ji,jj-1) ) ) * tmask(ji,jj,1)
	117	END DO
	118	END DO
	119	ELSE ! if no ice dynamics => transmit directly the atmospheric stress to the ocean
	120	DO jj = 2, jpjm1
	121	DO ji = fs_2, fs_jpim1
	122	zfric(ji,jj) = r1_rau0 * SQRT( 0.5_wp * &
	123	& ( utau(ji,jj) * utau(ji,jj) + utau(ji-1,jj) * utau(ji-1,jj) &
	124	& + vtau(ji,jj) * vtau(ji,jj) + vtau(ji,jj-1) * vtau(ji,jj-1) ) ) * tmask(ji,jj,1)
	125	END DO
	126	END DO
	127	ENDIF
[10425]	128	CALL lbc_lnk( 'icethd', zfric, 'T', 1. )
[8586]	129	!
	130	!--------------------------------------------------------------------!
	131	! Partial computation of forcing for the thermodynamic sea ice model
	132	!--------------------------------------------------------------------!
	133	DO jj = 1, jpj
	134	DO ji = 1, jpi
	135	rswitch = tmask(ji,jj,1) * MAX( 0._wp , SIGN( 1._wp , at_i(ji,jj) - epsi10 ) ) ! 0 if no ice
	136	!
	137	! ! solar irradiance transmission at the mixed layer bottom and used in the lead heat budget
	138	! ! practically no "direct lateral ablation"
	139	!
	140	! ! net downward heat flux from the ice to the ocean, expressed as a function of ocean
	141	! ! temperature and turbulent mixing (McPhee, 1992)
	142	!
[9922]	143	! --- Energy received in the lead from atm-oce exchanges, zqld is defined everywhere (J.m-2) --- !
[8586]	144	zqld = tmask(ji,jj,1) * rdt_ice * &
	145	& ( ( 1._wp - at_i_b(ji,jj) ) * qsr_oce(ji,jj) * frq_m(ji,jj) + &
	146	& ( 1._wp - at_i_b(ji,jj) ) * qns_oce(ji,jj) + qemp_oce(ji,jj) )
	147
[9922]	148	! --- Energy needed to bring ocean surface layer until its freezing (mostly<0 but >0 if supercooling, J.m-2) --- !
	149	zqfr = rau0 * rcp * e3t_m(ji,jj) * ( t_bo(ji,jj) - ( sst_m(ji,jj) + rt0 ) ) * tmask(ji,jj,1) ! both < 0 (t_bo < sst) and > 0 (t_bo > sst)
	150	zqfr_neg = MIN( zqfr , 0._wp ) ! only < 0
[8586]	151
[9922]	152	! --- Sensible ocean-to-ice heat flux (mostly>0 but <0 if supercooling, W/m2)
	153	zfric_u = MAX( SQRT( zfric(ji,jj) ), zfric_umin )
[10511]	154	qsb_ice_bot(ji,jj) = rswitch * rau0 * rcp * zch * zfric_u * ( ( sst_m(ji,jj) + rt0 ) - t_bo(ji,jj) ) ! W.m-2
[8586]	155
[9913]	156	qsb_ice_bot(ji,jj) = rswitch * MIN( qsb_ice_bot(ji,jj), - zqfr_neg * r1_rdtice / MAX( at_i(ji,jj), epsi10 ) )
	157	! upper bound for qsb_ice_bot: the heat retrieved from the ocean must be smaller than the heat necessary to reach
	158	! the freezing point, so that we do not have SST < T_freeze
	159	! This implies: - ( qsb_ice_bot(ji,jj) * at_i(ji,jj) * rtdice ) - zqfr >= 0
[8586]	160
[9913]	161	!-- Energy Budget of the leads (J.m-2), source of ice growth in open water. Must be < 0 to form ice
	162	qlead(ji,jj) = MIN( 0._wp , zqld - ( qsb_ice_bot(ji,jj) * at_i(ji,jj) * rdt_ice ) - zqfr )
[8586]	163
[10994]	164	! If there is ice and leads are warming => transfer energy from the lead budget and use it for bottom melting
	165	! If the grid cell is fully covered by ice (no leads) => transfer energy from the lead budget to the ice bottom budget
	166	IF( ( zqld >= 0._wp .AND. at_i(ji,jj) > 0._wp ) .OR. at_i(ji,jj) >= (1._wp - epsi10) ) THEN
[12734]	167	IF( ln_leadhfx ) THEN ; fhld(ji,jj) = rswitch * zqld * r1_rdtice / MAX( at_i(ji,jj), epsi10 ) ! divided by at_i since this is (re)multiplied by a_i in icethd_dh.F90
	168	ELSE ; fhld(ji,jj) = 0._wp
	169	ENDIF
[8586]	170	qlead(ji,jj) = 0._wp
	171	ELSE
	172	fhld (ji,jj) = 0._wp
	173	ENDIF
	174	!
	175	! Net heat flux on top of the ice-ocean [W.m-2]
	176	! ---------------------------------------------
[9912]	177	qt_atm_oi(ji,jj) = qns_tot(ji,jj) + qsr_tot(ji,jj)
[8586]	178	END DO
	179	END DO
	180
	181	! In case we bypass open-water ice formation
	182	IF( .NOT. ln_icedO ) qlead(:,:) = 0._wp
[10932]	183	! In case we bypass growing/melting from top and bottom
[8586]	184	IF( .NOT. ln_icedH ) THEN
[9913]	185	qsb_ice_bot(:,:) = 0._wp
	186	fhld (:,:) = 0._wp
[8586]	187	ENDIF
	188
	189	! ---------------------------------------------------------------------
	190	! Net heat flux on top of the ocean after ice thermo (1st step) [W.m-2]
	191	! ---------------------------------------------------------------------
[9913]	192	! First step here : non solar + precip - qlead - qsensible
[8586]	193	! Second step in icethd_dh : heat remaining if total melt (zq_rema)
	194	! Third step in iceupdate.F90 : heat from ice-ocean mass exchange (zf_mass) + solar
[9912]	195	qt_oce_ai(:,:) = ( 1._wp - at_i_b(:,:) ) * qns_oce(:,:) + qemp_oce(:,:) & ! Non solar heat flux received by the ocean
	196	& - qlead(:,:) * r1_rdtice & ! heat flux taken from the ocean where there is open water ice formation
[9913]	197	& - at_i (:,:) * qsb_ice_bot(:,:) & ! heat flux taken by sensible flux
	198	& - at_i (:,:) * fhld (:,:) ! heat flux taken during bottom growth/melt
	199	! ! (fhld should be 0 while bott growth)
[8586]	200	!-------------------------------------------------------------------------------------------!
	201	! Thermodynamic computation (only on grid points covered by ice) => loop over ice categories
	202	!-------------------------------------------------------------------------------------------!
	203	DO jl = 1, jpl
	204
	205	! select ice covered grid points
	206	npti = 0 ; nptidx(:) = 0
	207	DO jj = 1, jpj
	208	DO ji = 1, jpi
	209	IF ( a_i(ji,jj,jl) > epsi10 ) THEN
	210	npti = npti + 1
	211	nptidx(npti) = (jj - 1) * jpi + ji
	212	ENDIF
	213	END DO
	214	END DO
	215
	216	IF( npti > 0 ) THEN ! If there is no ice, do nothing.
	217	!
	218	CALL ice_thd_1d2d( jl, 1 ) ! --- Move to 1D arrays --- !
	219	! ! --- & Change units of e_i, e_s from J/m2 to J/m3 --- !
	220	!
[9750]	221	s_i_new (1:npti) = 0._wp ; dh_s_tot(1:npti) = 0._wp ! --- some init --- ! (important to have them here)
	222	dh_i_sum (1:npti) = 0._wp ; dh_i_bom(1:npti) = 0._wp ; dh_i_itm (1:npti) = 0._wp
	223	dh_i_sub (1:npti) = 0._wp ; dh_i_bog(1:npti) = 0._wp
	224	dh_snowice(1:npti) = 0._wp ; dh_s_mlt(1:npti) = 0._wp
[10932]	225	!
	226	CALL ice_thd_zdf ! --- Ice-Snow temperature --- !
[8586]	227	!
[10932]	228	IF( ln_icedH ) THEN ! --- Growing/Melting --- !
	229	CALL ice_thd_dh ! Ice-Snow thickness
	230	CALL ice_thd_pnd ! Melt ponds formation
	231	CALL ice_thd_ent( e_i_1d(1:npti,:) ) ! Ice enthalpy remapping
[8586]	232	ENDIF
	233	CALL ice_thd_sal( ln_icedS ) ! --- Ice salinity --- !
	234	!
[10932]	235	CALL ice_thd_temp ! --- Temperature update --- !
[8586]	236	!
[10531]	237	IF( ln_icedH .AND. ln_virtual_itd ) &
[10932]	238	& CALL ice_thd_mono ! --- Extra lateral melting if virtual_itd --- !
[8586]	239	!
[10932]	240	IF( ln_icedA ) CALL ice_thd_da ! --- Lateral melting --- !
[8586]	241	!
	242	CALL ice_thd_1d2d( jl, 2 ) ! --- Change units of e_i, e_s from J/m3 to J/m2 --- !
	243	! ! --- & Move to 2D arrays --- !
	244	ENDIF
	245	!
	246	END DO
[10994]	247	!
[8586]	248	IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icethd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft)
[11536]	249	IF( ln_icediachk ) CALL ice_cons2D (1, 'icethd', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft)
[8586]	250	!
[10932]	251	IF( jpl > 1 ) CALL ice_itd_rem( kt ) ! --- Transport ice between thickness categories --- !
[8586]	252	!
[10932]	253	IF( ln_icedO ) CALL ice_thd_do ! --- Frazil ice growth in leads --- !
[8586]	254	!
	255	! controls
[9124]	256	IF( ln_icectl ) CALL ice_prt (kt, iiceprt, jiceprt, 1, ' - ice thermodyn. - ') ! prints
	257	IF( ln_ctl ) CALL ice_prt3D ('icethd') ! prints
	258	IF( ln_timing ) CALL timing_stop('icethd') ! timing
[8586]	259	!
	260	END SUBROUTINE ice_thd
	261
	262
	263	SUBROUTINE ice_thd_temp
	264	!!-----------------------------------------------------------------------
	265	!! * ROUTINE ice_thd_temp *
	266	!!
	267	!! ** Purpose : Computes sea ice temperature (Kelvin) from enthalpy
	268	!!
	269	!! ** Method : Formula (Bitz and Lipscomb, 1999)
	270	!!-------------------------------------------------------------------
	271	INTEGER :: ji, jk ! dummy loop indices
	272	REAL(wp) :: ztmelts, zbbb, zccc ! local scalar
	273	!!-------------------------------------------------------------------
	274	! Recover ice temperature
	275	DO jk = 1, nlay_i
	276	DO ji = 1, npti
[9935]	277	ztmelts = -rTmlt * sz_i_1d(ji,jk)
[8586]	278	! Conversion q(S,T) -> T (second order equation)
[9935]	279	zbbb = ( rcp - rcpi ) * ztmelts + e_i_1d(ji,jk) * r1_rhoi - rLfus
	280	zccc = SQRT( MAX( zbbb * zbbb - 4._wp * rcpi * rLfus * ztmelts, 0._wp ) )
	281	t_i_1d(ji,jk) = rt0 - ( zbbb + zccc ) * 0.5_wp * r1_rcpi
[8586]	282
	283	! mask temperature
	284	rswitch = 1._wp - MAX( 0._wp , SIGN( 1._wp , - h_i_1d(ji) ) )
	285	t_i_1d(ji,jk) = rswitch * t_i_1d(ji,jk) + ( 1._wp - rswitch ) * rt0
	286	END DO
	287	END DO
	288	!
	289	END SUBROUTINE ice_thd_temp
	290
	291
[9750]	292	SUBROUTINE ice_thd_mono
[8586]	293	!!-----------------------------------------------------------------------
[9750]	294	!! * ROUTINE ice_thd_mono *
[8586]	295	!!
[9076]	296	!! ** Purpose : Lateral melting in case virtual_itd
[8586]	297	!! ( dA = A/2h dh )
	298	!!-----------------------------------------------------------------------
	299	INTEGER :: ji ! dummy loop indices
	300	REAL(wp) :: zhi_bef ! ice thickness before thermo
	301	REAL(wp) :: zdh_mel, zda_mel ! net melting
	302	REAL(wp) :: zvi, zvs ! ice/snow volumes
	303	!!-----------------------------------------------------------------------
	304	!
	305	DO ji = 1, npti
[9750]	306	zdh_mel = MIN( 0._wp, dh_i_itm(ji) + dh_i_sum(ji) + dh_i_bom(ji) + dh_snowice(ji) + dh_i_sub(ji) )
[8586]	307	IF( zdh_mel < 0._wp .AND. a_i_1d(ji) > 0._wp ) THEN
	308	zvi = a_i_1d(ji) * h_i_1d(ji)
	309	zvs = a_i_1d(ji) * h_s_1d(ji)
	310	! lateral melting = concentration change
	311	zhi_bef = h_i_1d(ji) - zdh_mel
	312	rswitch = MAX( 0._wp , SIGN( 1._wp , zhi_bef - epsi20 ) )
	313	zda_mel = rswitch * a_i_1d(ji) * zdh_mel / ( 2._wp * MAX( zhi_bef, epsi20 ) )
	314	a_i_1d(ji) = MAX( epsi20, a_i_1d(ji) + zda_mel )
	315	! adjust thickness
	316	h_i_1d(ji) = zvi / a_i_1d(ji)
	317	h_s_1d(ji) = zvs / a_i_1d(ji)
	318	! retrieve total concentration
	319	at_i_1d(ji) = a_i_1d(ji)
	320	END IF
	321	END DO
	322	!
[9750]	323	END SUBROUTINE ice_thd_mono
[8586]	324
	325
	326	SUBROUTINE ice_thd_1d2d( kl, kn )
	327	!!-----------------------------------------------------------------------
	328	!! * ROUTINE ice_thd_1d2d *
	329	!!
	330	!! ** Purpose : move arrays from 1d to 2d and the reverse
	331	!!-----------------------------------------------------------------------
	332	INTEGER, INTENT(in) :: kl ! index of the ice category
	333	INTEGER, INTENT(in) :: kn ! 1= from 2D to 1D ; 2= from 1D to 2D
	334	!
	335	INTEGER :: jk ! dummy loop indices
	336	!!-----------------------------------------------------------------------
	337	!
	338	SELECT CASE( kn )
	339	! !---------------------!
	340	CASE( 1 ) !== from 2D to 1D ==!
	341	! !---------------------!
	342	CALL tab_2d_1d( npti, nptidx(1:npti), at_i_1d(1:npti), at_i )
	343	CALL tab_2d_1d( npti, nptidx(1:npti), a_i_1d (1:npti), a_i (:,:,kl) )
[8637]	344	CALL tab_2d_1d( npti, nptidx(1:npti), h_i_1d (1:npti), h_i (:,:,kl) )
	345	CALL tab_2d_1d( npti, nptidx(1:npti), h_s_1d (1:npti), h_s (:,:,kl) )
[8586]	346	CALL tab_2d_1d( npti, nptidx(1:npti), t_su_1d(1:npti), t_su(:,:,kl) )
[8637]	347	CALL tab_2d_1d( npti, nptidx(1:npti), s_i_1d (1:npti), s_i (:,:,kl) )
[8586]	348	DO jk = 1, nlay_s
[8637]	349	CALL tab_2d_1d( npti, nptidx(1:npti), t_s_1d(1:npti,jk), t_s(:,:,jk,kl) )
	350	CALL tab_2d_1d( npti, nptidx(1:npti), e_s_1d(1:npti,jk), e_s(:,:,jk,kl) )
[8586]	351	END DO
	352	DO jk = 1, nlay_i
[8637]	353	CALL tab_2d_1d( npti, nptidx(1:npti), t_i_1d (1:npti,jk), t_i (:,:,jk,kl) )
	354	CALL tab_2d_1d( npti, nptidx(1:npti), e_i_1d (1:npti,jk), e_i (:,:,jk,kl) )
	355	CALL tab_2d_1d( npti, nptidx(1:npti), sz_i_1d(1:npti,jk), sz_i(:,:,jk,kl) )
[8586]	356	END DO
[8637]	357	CALL tab_2d_1d( npti, nptidx(1:npti), a_ip_1d (1:npti), a_ip (:,:,kl) )
	358	CALL tab_2d_1d( npti, nptidx(1:npti), h_ip_1d (1:npti), h_ip (:,:,kl) )
[12720]	359	CALL tab_2d_1d( npti, nptidx(1:npti), h_il_1d (1:npti), h_il (:,:,kl) )
[8586]	360	!
[9910]	361	CALL tab_2d_1d( npti, nptidx(1:npti), qprec_ice_1d (1:npti), qprec_ice )
	362	CALL tab_2d_1d( npti, nptidx(1:npti), qsr_ice_1d (1:npti), qsr_ice (:,:,kl) )
	363	CALL tab_2d_1d( npti, nptidx(1:npti), qns_ice_1d (1:npti), qns_ice (:,:,kl) )
	364	CALL tab_2d_1d( npti, nptidx(1:npti), evap_ice_1d (1:npti), evap_ice(:,:,kl) )
	365	CALL tab_2d_1d( npti, nptidx(1:npti), dqns_ice_1d (1:npti), dqns_ice(:,:,kl) )
	366	CALL tab_2d_1d( npti, nptidx(1:npti), t_bo_1d (1:npti), t_bo )
	367	CALL tab_2d_1d( npti, nptidx(1:npti), sprecip_1d (1:npti), sprecip )
[9913]	368	CALL tab_2d_1d( npti, nptidx(1:npti), qsb_ice_bot_1d(1:npti), qsb_ice_bot )
[9910]	369	CALL tab_2d_1d( npti, nptidx(1:npti), fhld_1d (1:npti), fhld )
[8813]	370
[9910]	371	CALL tab_2d_1d( npti, nptidx(1:npti), qml_ice_1d (1:npti), qml_ice (:,:,kl) )
	372	CALL tab_2d_1d( npti, nptidx(1:npti), qcn_ice_1d (1:npti), qcn_ice (:,:,kl) )
	373	CALL tab_2d_1d( npti, nptidx(1:npti), qtr_ice_top_1d(1:npti), qtr_ice_top(:,:,kl) )
[8586]	374	!
	375	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sni_1d(1:npti), wfx_snw_sni )
	376	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sum_1d(1:npti), wfx_snw_sum )
	377	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sub_1d (1:npti), wfx_sub )
	378	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sub_1d(1:npti), wfx_snw_sub )
	379	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_ice_sub_1d(1:npti), wfx_ice_sub )
	380	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_err_sub_1d(1:npti), wfx_err_sub )
	381	!
	382	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_bog_1d (1:npti), wfx_bog )
	383	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_bom_1d (1:npti), wfx_bom )
	384	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sum_1d (1:npti), wfx_sum )
	385	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sni_1d (1:npti), wfx_sni )
	386	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_res_1d (1:npti), wfx_res )
	387	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_spr_1d (1:npti), wfx_spr )
	388	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_lam_1d (1:npti), wfx_lam )
[8637]	389	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_pnd_1d (1:npti), wfx_pnd )
[8586]	390	!
	391	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bog_1d (1:npti), sfx_bog )
	392	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bom_1d (1:npti), sfx_bom )
	393	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sum_1d (1:npti), sfx_sum )
	394	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sni_1d (1:npti), sfx_sni )
	395	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bri_1d (1:npti), sfx_bri )
	396	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_res_1d (1:npti), sfx_res )
	397	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sub_1d (1:npti), sfx_sub )
	398	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_lam_1d (1:npti), sfx_lam )
	399	!
[9910]	400	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_thd_1d (1:npti), hfx_thd )
	401	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_spr_1d (1:npti), hfx_spr )
	402	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_sum_1d (1:npti), hfx_sum )
	403	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_bom_1d (1:npti), hfx_bom )
	404	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_bog_1d (1:npti), hfx_bog )
	405	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_dif_1d (1:npti), hfx_dif )
	406	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_opw_1d (1:npti), hfx_opw )
	407	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_snw_1d (1:npti), hfx_snw )
	408	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_sub_1d (1:npti), hfx_sub )
	409	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_res_1d (1:npti), hfx_res )
[8586]	410	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_err_dif_1d(1:npti), hfx_err_dif )
[9912]	411	CALL tab_2d_1d( npti, nptidx(1:npti), qt_oce_ai_1d (1:npti), qt_oce_ai )
[8586]	412	!
	413	! ocean surface fields
	414	CALL tab_2d_1d( npti, nptidx(1:npti), sst_1d(1:npti), sst_m )
	415	CALL tab_2d_1d( npti, nptidx(1:npti), sss_1d(1:npti), sss_m )
[10786]	416	!
	417	! to update ice age
	418	CALL tab_2d_1d( npti, nptidx(1:npti), o_i_1d (1:npti), o_i (:,:,kl) )
	419	CALL tab_2d_1d( npti, nptidx(1:npti), oa_i_1d(1:npti), oa_i(:,:,kl) )
	420	!
[8586]	421	! --- Change units of e_i, e_s from J/m2 to J/m3 --- !
	422	DO jk = 1, nlay_i
	423	WHERE( h_i_1d(1:npti)>0._wp ) e_i_1d(1:npti,jk) = e_i_1d(1:npti,jk) / (h_i_1d(1:npti) * a_i_1d(1:npti)) * nlay_i
	424	END DO
	425	DO jk = 1, nlay_s
	426	WHERE( h_s_1d(1:npti)>0._wp ) e_s_1d(1:npti,jk) = e_s_1d(1:npti,jk) / (h_s_1d(1:npti) * a_i_1d(1:npti)) * nlay_s
	427	END DO
	428	!
	429	! !---------------------!
	430	CASE( 2 ) !== from 1D to 2D ==!
	431	! !---------------------!
	432	! --- Change units of e_i, e_s from J/m3 to J/m2 --- !
	433	DO jk = 1, nlay_i
	434	e_i_1d(1:npti,jk) = e_i_1d(1:npti,jk) * h_i_1d(1:npti) * a_i_1d(1:npti) * r1_nlay_i
	435	END DO
	436	DO jk = 1, nlay_s
	437	e_s_1d(1:npti,jk) = e_s_1d(1:npti,jk) * h_s_1d(1:npti) * a_i_1d(1:npti) * r1_nlay_s
	438	END DO
	439	!
	440	! Change thickness to volume (replaces routine ice_var_eqv2glo)
[8637]	441	v_i_1d (1:npti) = h_i_1d (1:npti) * a_i_1d (1:npti)
	442	v_s_1d (1:npti) = h_s_1d (1:npti) * a_i_1d (1:npti)
	443	sv_i_1d(1:npti) = s_i_1d (1:npti) * v_i_1d (1:npti)
	444	v_ip_1d(1:npti) = h_ip_1d(1:npti) * a_ip_1d(1:npti)
[12720]	445	v_il_1d(1:npti) = h_il_1d(1:npti) * a_ip_1d(1:npti)
[10786]	446	oa_i_1d(1:npti) = o_i_1d (1:npti) * a_i_1d (1:npti)
[8586]	447
	448	CALL tab_1d_2d( npti, nptidx(1:npti), at_i_1d(1:npti), at_i )
	449	CALL tab_1d_2d( npti, nptidx(1:npti), a_i_1d (1:npti), a_i (:,:,kl) )
[8637]	450	CALL tab_1d_2d( npti, nptidx(1:npti), h_i_1d (1:npti), h_i (:,:,kl) )
	451	CALL tab_1d_2d( npti, nptidx(1:npti), h_s_1d (1:npti), h_s (:,:,kl) )
[8586]	452	CALL tab_1d_2d( npti, nptidx(1:npti), t_su_1d(1:npti), t_su(:,:,kl) )
[8637]	453	CALL tab_1d_2d( npti, nptidx(1:npti), s_i_1d (1:npti), s_i (:,:,kl) )
[8586]	454	DO jk = 1, nlay_s
[8637]	455	CALL tab_1d_2d( npti, nptidx(1:npti), t_s_1d(1:npti,jk), t_s(:,:,jk,kl) )
	456	CALL tab_1d_2d( npti, nptidx(1:npti), e_s_1d(1:npti,jk), e_s(:,:,jk,kl) )
[8586]	457	END DO
	458	DO jk = 1, nlay_i
[8637]	459	CALL tab_1d_2d( npti, nptidx(1:npti), t_i_1d (1:npti,jk), t_i (:,:,jk,kl) )
	460	CALL tab_1d_2d( npti, nptidx(1:npti), e_i_1d (1:npti,jk), e_i (:,:,jk,kl) )
	461	CALL tab_1d_2d( npti, nptidx(1:npti), sz_i_1d(1:npti,jk), sz_i(:,:,jk,kl) )
[8586]	462	END DO
[8637]	463	CALL tab_1d_2d( npti, nptidx(1:npti), a_ip_1d (1:npti), a_ip (:,:,kl) )
	464	CALL tab_1d_2d( npti, nptidx(1:npti), h_ip_1d (1:npti), h_ip (:,:,kl) )
[12720]	465	CALL tab_1d_2d( npti, nptidx(1:npti), h_il_1d (1:npti), h_il (:,:,kl) )
[8586]	466	!
	467	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sni_1d(1:npti), wfx_snw_sni )
	468	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sum_1d(1:npti), wfx_snw_sum )
	469	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sub_1d (1:npti), wfx_sub )
	470	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sub_1d(1:npti), wfx_snw_sub )
	471	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_ice_sub_1d(1:npti), wfx_ice_sub )
	472	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_err_sub_1d(1:npti), wfx_err_sub )
	473	!
	474	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_bog_1d (1:npti), wfx_bog )
	475	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_bom_1d (1:npti), wfx_bom )
	476	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sum_1d (1:npti), wfx_sum )
	477	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sni_1d (1:npti), wfx_sni )
	478	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_res_1d (1:npti), wfx_res )
	479	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_spr_1d (1:npti), wfx_spr )
	480	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_lam_1d (1:npti), wfx_lam )
[8813]	481	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_pnd_1d (1:npti), wfx_pnd )
[8586]	482	!
	483	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bog_1d (1:npti), sfx_bog )
	484	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bom_1d (1:npti), sfx_bom )
	485	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sum_1d (1:npti), sfx_sum )
	486	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sni_1d (1:npti), sfx_sni )
	487	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bri_1d (1:npti), sfx_bri )
	488	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_res_1d (1:npti), sfx_res )
	489	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sub_1d (1:npti), sfx_sub )
	490	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_lam_1d (1:npti), sfx_lam )
	491	!
[9912]	492	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_thd_1d (1:npti), hfx_thd )
	493	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_spr_1d (1:npti), hfx_spr )
	494	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_sum_1d (1:npti), hfx_sum )
	495	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_bom_1d (1:npti), hfx_bom )
	496	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_bog_1d (1:npti), hfx_bog )
	497	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_dif_1d (1:npti), hfx_dif )
	498	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_opw_1d (1:npti), hfx_opw )
	499	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_snw_1d (1:npti), hfx_snw )
	500	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_sub_1d (1:npti), hfx_sub )
	501	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_res_1d (1:npti), hfx_res )
[8586]	502	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_err_dif_1d(1:npti), hfx_err_dif )
[9912]	503	CALL tab_1d_2d( npti, nptidx(1:npti), qt_oce_ai_1d (1:npti), qt_oce_ai )
[8586]	504	!
[9910]	505	CALL tab_1d_2d( npti, nptidx(1:npti), qns_ice_1d (1:npti), qns_ice (:,:,kl) )
	506	CALL tab_1d_2d( npti, nptidx(1:npti), qtr_ice_bot_1d(1:npti), qtr_ice_bot(:,:,kl) )
[10534]	507	! effective conductivity and 1st layer temperature (ln_cndflx=T)
[8933]	508	CALL tab_1d_2d( npti, nptidx(1:npti), cnd_ice_1d(1:npti), cnd_ice(:,:,kl) )
	509	CALL tab_1d_2d( npti, nptidx(1:npti), t1_ice_1d (1:npti), t1_ice (:,:,kl) )
[8586]	510	! SIMIP diagnostics
[9916]	511	CALL tab_1d_2d( npti, nptidx(1:npti), t_si_1d (1:npti), t_si (:,:,kl) )
	512	CALL tab_1d_2d( npti, nptidx(1:npti), qcn_ice_bot_1d(1:npti), qcn_ice_bot(:,:,kl) )
	513	CALL tab_1d_2d( npti, nptidx(1:npti), qcn_ice_top_1d(1:npti), qcn_ice_top(:,:,kl) )
[8586]	514	! extensive variables
	515	CALL tab_1d_2d( npti, nptidx(1:npti), v_i_1d (1:npti), v_i (:,:,kl) )
	516	CALL tab_1d_2d( npti, nptidx(1:npti), v_s_1d (1:npti), v_s (:,:,kl) )
	517	CALL tab_1d_2d( npti, nptidx(1:npti), sv_i_1d(1:npti), sv_i(:,:,kl) )
[8637]	518	CALL tab_1d_2d( npti, nptidx(1:npti), v_ip_1d(1:npti), v_ip(:,:,kl) )
[12720]	519	CALL tab_1d_2d( npti, nptidx(1:npti), v_il_1d(1:npti), v_il(:,:,kl) )
[10786]	520	CALL tab_1d_2d( npti, nptidx(1:npti), oa_i_1d(1:npti), oa_i(:,:,kl) )
[8586]	521	!
	522	END SELECT
	523	!
	524	END SUBROUTINE ice_thd_1d2d
	525
	526
	527	SUBROUTINE ice_thd_init
[8637]	528	!!-------------------------------------------------------------------
[8586]	529	!! * ROUTINE ice_thd_init *
	530	!!
	531	!! ** Purpose : Physical constants and parameters associated with
	532	!! ice thermodynamics
	533	!!
	534	!! ** Method : Read the namthd namelist and check the parameters
	535	!! called at the first timestep (nit000)
	536	!!
	537	!! ** input : Namelist namthd
	538	!!-------------------------------------------------------------------
	539	INTEGER :: ios ! Local integer output status for namelist read
	540	!!
[12734]	541	NAMELIST/namthd/ ln_icedH, ln_icedA, ln_icedO, ln_icedS, ln_leadhfx
[8586]	542	!!-------------------------------------------------------------------
	543	!
	544	REWIND( numnam_ice_ref ) ! Namelist namthd in reference namelist : Ice thermodynamics
	545	READ ( numnam_ice_ref, namthd, IOSTAT = ios, ERR = 901)
[11536]	546	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namthd in reference namelist' )
[8586]	547	REWIND( numnam_ice_cfg ) ! Namelist namthd in configuration namelist : Ice thermodynamics
	548	READ ( numnam_ice_cfg, namthd, IOSTAT = ios, ERR = 902 )
[11536]	549	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namthd in configuration namelist' )
[9169]	550	IF(lwm) WRITE( numoni, namthd )
[8586]	551	!
	552	IF(lwp) THEN ! control print
[9169]	553	WRITE(numout,*)
[8586]	554	WRITE(numout,*) 'ice_thd_init: Ice Thermodynamics'
	555	WRITE(numout,*) '~~~~~~~~~~~~'
	556	WRITE(numout,*) ' Namelist namthd:'
[12734]	557	WRITE(numout,*) ' activate ice thick change from top/bot (T) or not (F) ln_icedH = ', ln_icedH
	558	WRITE(numout,*) ' activate lateral melting (T) or not (F) ln_icedA = ', ln_icedA
	559	WRITE(numout,*) ' activate ice growth in open-water (T) or not (F) ln_icedO = ', ln_icedO
	560	WRITE(numout,*) ' activate gravity drainage and flushing (T) or not (F) ln_icedS = ', ln_icedS
	561	WRITE(numout,*) ' heat in the leads is used to melt sea-ice before warming the ocean ln_leadhfx = ', ln_leadhfx
[8586]	562	ENDIF
	563	!
	564	CALL ice_thd_zdf_init ! set ice heat diffusion parameters
	565	IF( ln_icedA ) CALL ice_thd_da_init ! set ice lateral melting parameters
	566	IF( ln_icedO ) CALL ice_thd_do_init ! set ice growth in open water parameters
	567	CALL ice_thd_sal_init ! set ice salinity parameters
[8637]	568	CALL ice_thd_pnd_init ! set melt ponds parameters
[8586]	569	!
	570	END SUBROUTINE ice_thd_init
	571
	572	#else
	573	!!----------------------------------------------------------------------
[9570]	574	!! Default option Dummy module NO SI3 sea-ice model
[8586]	575	!!----------------------------------------------------------------------
	576	#endif
	577
	578	!!======================================================================
	579	END MODULE icethd

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