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icethd.F90

Last change on this file was 15813, checked in by clem, 13 months ago
SI3: change heat budget to avoid supercooling. The rest: cosmetics
Property svn:keywords set to `Id`
File size: 36.3 KB

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[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 ?
[13589]	20	USE sbc_oce , ONLY : sss_m, sst_m, e3t_m, utau, vtau, ssu_m, ssv_m, frq_m, sprecip, ln_cpl
[8586]	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
[13640]	32	USE icecor ! sea-ice: corrections
[8586]	33	USE icetab ! sea-ice: 1D <==> 2D transformation
	34	USE icevar ! sea-ice: operations
	35	USE icectl ! sea-ice: control print
	36	!
	37	USE in_out_manager ! I/O manager
[13284]	38	USE iom ! I/O manager library
[8586]	39	USE lib_mpp ! MPP library
	40	USE lib_fortran ! fortran utilities (glob_sum + no signed zero)
	41	USE lbclnk ! lateral boundary conditions (or mpp links)
	42	USE timing ! Timing
	43
	44	IMPLICIT NONE
	45	PRIVATE
	46
	47	PUBLIC ice_thd ! called by limstp module
	48	PUBLIC ice_thd_init ! called by ice_init
	49
	50	!! namelist (namthd)
	51	LOGICAL :: ln_icedH ! activate ice thickness change from growing/melting (T) or not (F)
	52	LOGICAL :: ln_icedA ! activate lateral melting param. (T) or not (F)
	53	LOGICAL :: ln_icedO ! activate ice growth in open-water (T) or not (F)
	54	LOGICAL :: ln_icedS ! activate gravity drainage and flushing (T) or not (F)
[13589]	55	LOGICAL :: ln_leadhfx ! heat in the leads is used to melt sea-ice before warming the ocean
[8586]	56
[13284]	57	!! for convergence tests
	58	REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztice_cvgerr, ztice_cvgstp
	59
[8586]	60	!! * Substitutions
	61	# include "vectopt_loop_substitute.h90"
	62	!!----------------------------------------------------------------------
[9598]	63	!! NEMO/ICE 4.0 , NEMO Consortium (2018)
[10069]	64	!! $Id$
[10068]	65	!! Software governed by the CeCILL license (see ./LICENSE)
[8586]	66	!!----------------------------------------------------------------------
	67	CONTAINS
	68
	69	SUBROUTINE ice_thd( kt )
	70	!!-------------------------------------------------------------------
	71	!! * ROUTINE ice_thd *
	72	!!
	73	!! ** Purpose : This routine manages ice thermodynamics
	74	!!
[9604]	75	!! ** Action : - computation of oceanic sensible heat flux at the ice base
	76	!! energy budget in the leads
	77	!! net fluxes on top of ice and of ocean
	78	!! - selection of grid cells with ice
	79	!! - call ice_thd_zdf for vertical heat diffusion
	80	!! - call ice_thd_dh for vertical ice growth and melt
	81	!! - call ice_thd_pnd for melt ponds
	82	!! - call ice_thd_ent for enthalpy remapping
	83	!! - call ice_thd_sal for ice desalination
	84	!! - call ice_thd_temp to retrieve temperature from ice enthalpy
[9750]	85	!! - call ice_thd_mono for extra lateral ice melt if active virtual thickness distribution
[9604]	86	!! - call ice_thd_da for lateral ice melt
[8586]	87	!! - back to the geographic grid
[9604]	88	!! - call ice_thd_rem for remapping thickness distribution
	89	!! - call ice_thd_do for ice growth in leads
[8637]	90	!!-------------------------------------------------------------------
[8586]	91	INTEGER, INTENT(in) :: kt ! number of iteration
	92	!
	93	INTEGER :: ji, jj, jk, jl ! dummy loop indices
[13589]	94	REAL(wp) :: zfric_u, zqld, zqfr, zqfr_neg, zqfr_pos
	95	REAL(wp), PARAMETER :: zfric_umin = 0._wp ! lower bound for the friction velocity (cice value=5.e-04)
	96	REAL(wp), PARAMETER :: zch = 0.0057_wp ! heat transfer coefficient
	97	REAL(wp), DIMENSION(jpi,jpj) :: zu_io, zv_io, zfric, zvel ! ice-ocean velocity (m/s) and frictional velocity (m2/s2)
[8586]	98	!
	99	!!-------------------------------------------------------------------
	100	! controls
[9124]	101	IF( ln_timing ) CALL timing_start('icethd') ! timing
	102	IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icethd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation
[11536]	103	IF( ln_icediachk ) CALL ice_cons2D (0, 'icethd', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft) ! conservation
[8586]	104
	105	IF( kt == nit000 .AND. lwp ) THEN
	106	WRITE(numout,*)
	107	WRITE(numout,*) 'ice_thd: sea-ice thermodynamics'
	108	WRITE(numout,*) '~~~~~~~'
	109	ENDIF
[13284]	110
	111	! convergence tests
	112	IF( ln_zdf_chkcvg ) THEN
	113	ALLOCATE( ztice_cvgerr(jpi,jpj,jpl) , ztice_cvgstp(jpi,jpj,jpl) )
	114	ztice_cvgerr = 0._wp ; ztice_cvgstp = 0._wp
	115	ENDIF
[8586]	116
	117	!---------------------------------------------!
	118	! computation of friction velocity at T points
	119	!---------------------------------------------!
	120	IF( ln_icedyn ) THEN
	121	zu_io(:,:) = u_ice(:,:) - ssu_m(:,:)
	122	zv_io(:,:) = v_ice(:,:) - ssv_m(:,:)
	123	DO jj = 2, jpjm1
	124	DO ji = fs_2, fs_jpim1
	125	zfric(ji,jj) = rn_cio * ( 0.5_wp * &
	126	& ( zu_io(ji,jj) * zu_io(ji,jj) + zu_io(ji-1,jj) * zu_io(ji-1,jj) &
	127	& + zv_io(ji,jj) * zv_io(ji,jj) + zv_io(ji,jj-1) * zv_io(ji,jj-1) ) ) * tmask(ji,jj,1)
[13589]	128	zvel(ji,jj) = 0.5_wp * SQRT( ( u_ice(ji-1,jj) + u_ice(ji,jj) ) * ( u_ice(ji-1,jj) + u_ice(ji,jj) ) + &
	129	& ( v_ice(ji,jj-1) + v_ice(ji,jj) ) * ( v_ice(ji,jj-1) + v_ice(ji,jj) ) )
[8586]	130	END DO
	131	END DO
[13589]	132	ELSE ! if no ice dynamics => transfer directly the atmospheric stress to the ocean
[8586]	133	DO jj = 2, jpjm1
	134	DO ji = fs_2, fs_jpim1
	135	zfric(ji,jj) = r1_rau0 * SQRT( 0.5_wp * &
	136	& ( utau(ji,jj) * utau(ji,jj) + utau(ji-1,jj) * utau(ji-1,jj) &
	137	& + vtau(ji,jj) * vtau(ji,jj) + vtau(ji,jj-1) * vtau(ji,jj-1) ) ) * tmask(ji,jj,1)
[13589]	138	zvel(ji,jj) = 0._wp
[8586]	139	END DO
	140	END DO
	141	ENDIF
[13589]	142	CALL lbc_lnk_multi( 'icethd', zfric, 'T', 1._wp, zvel, 'T', 1._wp )
[8586]	143	!
	144	!--------------------------------------------------------------------!
	145	! Partial computation of forcing for the thermodynamic sea ice model
	146	!--------------------------------------------------------------------!
	147	DO jj = 1, jpj
	148	DO ji = 1, jpi
	149	rswitch = tmask(ji,jj,1) * MAX( 0._wp , SIGN( 1._wp , at_i(ji,jj) - epsi10 ) ) ! 0 if no ice
	150	!
[9922]	151	! --- Energy received in the lead from atm-oce exchanges, zqld is defined everywhere (J.m-2) --- !
[8586]	152	zqld = tmask(ji,jj,1) * rdt_ice * &
	153	& ( ( 1._wp - at_i_b(ji,jj) ) * qsr_oce(ji,jj) * frq_m(ji,jj) + &
	154	& ( 1._wp - at_i_b(ji,jj) ) * qns_oce(ji,jj) + qemp_oce(ji,jj) )
	155
[13589]	156	! --- Energy needed to bring ocean surface layer until its freezing, zqfr is defined everywhere (J.m-2) --- !
	157	! (mostly<0 but >0 if supercooling)
[9922]	158	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)
	159	zqfr_neg = MIN( zqfr , 0._wp ) ! only < 0
[13589]	160	zqfr_pos = MAX( zqfr , 0._wp ) ! only > 0
[8586]	161
[13589]	162	! --- Sensible ocean-to-ice heat flux (W/m2) --- !
	163	! (mostly>0 but <0 if supercooling)
[9922]	164	zfric_u = MAX( SQRT( zfric(ji,jj) ), zfric_umin )
[13589]	165	qsb_ice_bot(ji,jj) = rswitch * rau0 * rcp * zch * zfric_u * ( ( sst_m(ji,jj) + rt0 ) - t_bo(ji,jj) )
[8586]	166
[9913]	167	! upper bound for qsb_ice_bot: the heat retrieved from the ocean must be smaller than the heat necessary to reach
	168	! the freezing point, so that we do not have SST < T_freeze
[13589]	169	! This implies: qsb_ice_bot(ji,jj) * at_i(ji,jj) * rtdice <= - zqfr_neg
	170	! The following formulation is ok for both normal conditions and supercooling
	171	qsb_ice_bot(ji,jj) = rswitch * MIN( qsb_ice_bot(ji,jj), - zqfr_neg * r1_rdtice / MAX( at_i(ji,jj), epsi10 ) )
[8586]	172
[14026]	173	! If conditions are always supercooled (such as at the mouth of ice-shelves), then ice grows continuously
	174	! ==> stop ice formation by artificially setting up the turbulent fluxes to 0 when volume > 20m (arbitrary)
	175	IF( ( t_bo(ji,jj) - ( sst_m(ji,jj) + rt0 ) ) > 0._wp .AND. vt_i(ji,jj) >= 20._wp ) THEN
	176	zqfr = 0._wp
	177	zqfr_pos = 0._wp
	178	qsb_ice_bot(ji,jj) = 0._wp
	179	ENDIF
	180	!
[13589]	181	! --- Energy Budget of the leads (qlead, J.m-2) --- !
	182	! qlead is the energy received from the atm. in the leads.
	183	! If warming (zqld >= 0), then the energy in the leads is used to melt ice (bottom melting) => fhld (W/m2)
	184	! If cooling (zqld < 0), then the energy in the leads is used to grow ice in open water => qlead (J.m-2)
[15813]	185	IF( ( zqld - zqfr ) < 0._wp .OR. at_i(ji,jj) < epsi10 ) THEN
	186	fhld (ji,jj) = 0._wp
	187	! upper bound for qlead: qlead should be equal to zqld
	188	! but before using this heat for ice formation, we suppose that the ocean cools down till the freezing point.
	189	! The energy for this cooling down is zqfr and freezing point is reached if zqfr = zqld
	190	! so the max heat that can be pulled out of the ocean is zqld - zqfr
	191	! The following formulation is ok for both normal conditions and supercooling
	192	qlead(ji,jj) = MIN( 0._wp , zqld - zqfr )
	193	ELSE
[13589]	194	! upper bound for fhld: fhld should be equal to zqld
	195	! but we have to make sure that this heat will not make the sst drop below the freezing point
[15813]	196	! so the max heat that can be pulled out of the ocean is zqld - zqfr_pos
[13589]	197	! The following formulation is ok for both normal conditions and supercooling
[15813]	198	fhld (ji,jj) = rswitch * MAX( 0._wp, ( zqld - zqfr_pos ) * r1_rdtice / MAX( at_i(ji,jj), epsi10 ) ) ! divided by at_i since this is (re)multiplied by a_i in icethd_dh.F90
[8586]	199	qlead(ji,jj) = 0._wp
	200	ENDIF
	201	!
[13589]	202	! If ice is landfast and ice concentration reaches its max
	203	! => stop ice formation in open water
	204	IF( zvel(ji,jj) <= 5.e-04_wp .AND. at_i(ji,jj) >= rn_amax_2d(ji,jj)-epsi06 ) qlead(ji,jj) = 0._wp
	205	!
	206	! If the grid cell is almost fully covered by ice (no leads)
	207	! => stop ice formation in open water
	208	IF( at_i(ji,jj) >= (1._wp - epsi10) ) qlead(ji,jj) = 0._wp
	209	!
	210	! If ln_leadhfx is false
	211	! => do not use energy of the leads to melt sea-ice
	212	IF( .NOT.ln_leadhfx ) fhld(ji,jj) = 0._wp
	213	!
[8586]	214	END DO
	215	END DO
	216
	217	! In case we bypass open-water ice formation
	218	IF( .NOT. ln_icedO ) qlead(:,:) = 0._wp
[10932]	219	! In case we bypass growing/melting from top and bottom
[8586]	220	IF( .NOT. ln_icedH ) THEN
[9913]	221	qsb_ice_bot(:,:) = 0._wp
	222	fhld (:,:) = 0._wp
[8586]	223	ENDIF
	224
	225	!-------------------------------------------------------------------------------------------!
	226	! Thermodynamic computation (only on grid points covered by ice) => loop over ice categories
	227	!-------------------------------------------------------------------------------------------!
	228	DO jl = 1, jpl
	229
	230	! select ice covered grid points
	231	npti = 0 ; nptidx(:) = 0
	232	DO jj = 1, jpj
	233	DO ji = 1, jpi
	234	IF ( a_i(ji,jj,jl) > epsi10 ) THEN
	235	npti = npti + 1
	236	nptidx(npti) = (jj - 1) * jpi + ji
	237	ENDIF
	238	END DO
	239	END DO
	240
	241	IF( npti > 0 ) THEN ! If there is no ice, do nothing.
	242	!
	243	CALL ice_thd_1d2d( jl, 1 ) ! --- Move to 1D arrays --- !
	244	! ! --- & Change units of e_i, e_s from J/m2 to J/m3 --- !
	245	!
[13284]	246	s_i_new (1:npti) = 0._wp ; dh_s_tot(1:npti) = 0._wp ! --- some init --- ! (important to have them here)
[9750]	247	dh_i_sum (1:npti) = 0._wp ; dh_i_bom(1:npti) = 0._wp ; dh_i_itm (1:npti) = 0._wp
	248	dh_i_sub (1:npti) = 0._wp ; dh_i_bog(1:npti) = 0._wp
	249	dh_snowice(1:npti) = 0._wp ; dh_s_mlt(1:npti) = 0._wp
[10932]	250	!
	251	CALL ice_thd_zdf ! --- Ice-Snow temperature --- !
[8586]	252	!
[10932]	253	IF( ln_icedH ) THEN ! --- Growing/Melting --- !
	254	CALL ice_thd_dh ! Ice-Snow thickness
	255	CALL ice_thd_ent( e_i_1d(1:npti,:) ) ! Ice enthalpy remapping
[8586]	256	ENDIF
	257	CALL ice_thd_sal( ln_icedS ) ! --- Ice salinity --- !
	258	!
[10932]	259	CALL ice_thd_temp ! --- Temperature update --- !
[8586]	260	!
[10531]	261	IF( ln_icedH .AND. ln_virtual_itd ) &
[10932]	262	& CALL ice_thd_mono ! --- Extra lateral melting if virtual_itd --- !
[8586]	263	!
[10932]	264	IF( ln_icedA ) CALL ice_thd_da ! --- Lateral melting --- !
[8586]	265	!
[14026]	266	IF( ln_pnd .AND. ln_icedH ) &
	267	& CALL ice_thd_pnd ! --- Melt ponds formation --- !
	268	!
[8586]	269	CALL ice_thd_1d2d( jl, 2 ) ! --- Change units of e_i, e_s from J/m3 to J/m2 --- !
	270	! ! --- & Move to 2D arrays --- !
	271	ENDIF
	272	!
	273	END DO
[10994]	274	!
[8586]	275	IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icethd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft)
[11536]	276	IF( ln_icediachk ) CALL ice_cons2D (1, 'icethd', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft)
[8586]	277	!
[10932]	278	IF( jpl > 1 ) CALL ice_itd_rem( kt ) ! --- Transport ice between thickness categories --- !
[8586]	279	!
[10932]	280	IF( ln_icedO ) CALL ice_thd_do ! --- Frazil ice growth in leads --- !
[8586]	281	!
[13640]	282	CALL ice_cor( kt , 2 ) ! --- Corrections --- !
	283	!
	284	oa_i(:,:,:) = oa_i(:,:,:) + a_i(:,:,:) * rdt_ice ! ice natural aging incrementation
	285	!
[13284]	286	! convergence tests
	287	IF( ln_zdf_chkcvg ) THEN
	288	CALL iom_put( 'tice_cvgerr', ztice_cvgerr ) ; DEALLOCATE( ztice_cvgerr )
	289	CALL iom_put( 'tice_cvgstp', ztice_cvgstp ) ; DEALLOCATE( ztice_cvgstp )
	290	ENDIF
	291	!
[8586]	292	! controls
[9124]	293	IF( ln_icectl ) CALL ice_prt (kt, iiceprt, jiceprt, 1, ' - ice thermodyn. - ') ! prints
	294	IF( ln_ctl ) CALL ice_prt3D ('icethd') ! prints
	295	IF( ln_timing ) CALL timing_stop('icethd') ! timing
[8586]	296	!
	297	END SUBROUTINE ice_thd
	298
	299
	300	SUBROUTINE ice_thd_temp
	301	!!-----------------------------------------------------------------------
	302	!! * ROUTINE ice_thd_temp *
	303	!!
	304	!! ** Purpose : Computes sea ice temperature (Kelvin) from enthalpy
	305	!!
	306	!! ** Method : Formula (Bitz and Lipscomb, 1999)
	307	!!-------------------------------------------------------------------
	308	INTEGER :: ji, jk ! dummy loop indices
	309	REAL(wp) :: ztmelts, zbbb, zccc ! local scalar
	310	!!-------------------------------------------------------------------
	311	! Recover ice temperature
	312	DO jk = 1, nlay_i
	313	DO ji = 1, npti
[9935]	314	ztmelts = -rTmlt * sz_i_1d(ji,jk)
[8586]	315	! Conversion q(S,T) -> T (second order equation)
[9935]	316	zbbb = ( rcp - rcpi ) * ztmelts + e_i_1d(ji,jk) * r1_rhoi - rLfus
	317	zccc = SQRT( MAX( zbbb * zbbb - 4._wp * rcpi * rLfus * ztmelts, 0._wp ) )
	318	t_i_1d(ji,jk) = rt0 - ( zbbb + zccc ) * 0.5_wp * r1_rcpi
[8586]	319
	320	! mask temperature
	321	rswitch = 1._wp - MAX( 0._wp , SIGN( 1._wp , - h_i_1d(ji) ) )
	322	t_i_1d(ji,jk) = rswitch * t_i_1d(ji,jk) + ( 1._wp - rswitch ) * rt0
	323	END DO
	324	END DO
	325	!
	326	END SUBROUTINE ice_thd_temp
	327
	328
[9750]	329	SUBROUTINE ice_thd_mono
[8586]	330	!!-----------------------------------------------------------------------
[9750]	331	!! * ROUTINE ice_thd_mono *
[8586]	332	!!
[9076]	333	!! ** Purpose : Lateral melting in case virtual_itd
[8586]	334	!! ( dA = A/2h dh )
	335	!!-----------------------------------------------------------------------
	336	INTEGER :: ji ! dummy loop indices
	337	REAL(wp) :: zhi_bef ! ice thickness before thermo
	338	REAL(wp) :: zdh_mel, zda_mel ! net melting
	339	REAL(wp) :: zvi, zvs ! ice/snow volumes
	340	!!-----------------------------------------------------------------------
	341	!
	342	DO ji = 1, npti
[9750]	343	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]	344	IF( zdh_mel < 0._wp .AND. a_i_1d(ji) > 0._wp ) THEN
	345	zvi = a_i_1d(ji) * h_i_1d(ji)
	346	zvs = a_i_1d(ji) * h_s_1d(ji)
	347	! lateral melting = concentration change
	348	zhi_bef = h_i_1d(ji) - zdh_mel
	349	rswitch = MAX( 0._wp , SIGN( 1._wp , zhi_bef - epsi20 ) )
	350	zda_mel = rswitch * a_i_1d(ji) * zdh_mel / ( 2._wp * MAX( zhi_bef, epsi20 ) )
	351	a_i_1d(ji) = MAX( epsi20, a_i_1d(ji) + zda_mel )
	352	! adjust thickness
	353	h_i_1d(ji) = zvi / a_i_1d(ji)
	354	h_s_1d(ji) = zvs / a_i_1d(ji)
	355	! retrieve total concentration
	356	at_i_1d(ji) = a_i_1d(ji)
	357	END IF
	358	END DO
	359	!
[9750]	360	END SUBROUTINE ice_thd_mono
[8586]	361
	362
	363	SUBROUTINE ice_thd_1d2d( kl, kn )
	364	!!-----------------------------------------------------------------------
	365	!! * ROUTINE ice_thd_1d2d *
	366	!!
	367	!! ** Purpose : move arrays from 1d to 2d and the reverse
	368	!!-----------------------------------------------------------------------
	369	INTEGER, INTENT(in) :: kl ! index of the ice category
	370	INTEGER, INTENT(in) :: kn ! 1= from 2D to 1D ; 2= from 1D to 2D
	371	!
	372	INTEGER :: jk ! dummy loop indices
	373	!!-----------------------------------------------------------------------
	374	!
	375	SELECT CASE( kn )
	376	! !---------------------!
	377	CASE( 1 ) !== from 2D to 1D ==!
	378	! !---------------------!
	379	CALL tab_2d_1d( npti, nptidx(1:npti), at_i_1d(1:npti), at_i )
	380	CALL tab_2d_1d( npti, nptidx(1:npti), a_i_1d (1:npti), a_i (:,:,kl) )
[8637]	381	CALL tab_2d_1d( npti, nptidx(1:npti), h_i_1d (1:npti), h_i (:,:,kl) )
	382	CALL tab_2d_1d( npti, nptidx(1:npti), h_s_1d (1:npti), h_s (:,:,kl) )
[8586]	383	CALL tab_2d_1d( npti, nptidx(1:npti), t_su_1d(1:npti), t_su(:,:,kl) )
[8637]	384	CALL tab_2d_1d( npti, nptidx(1:npti), s_i_1d (1:npti), s_i (:,:,kl) )
[8586]	385	DO jk = 1, nlay_s
[8637]	386	CALL tab_2d_1d( npti, nptidx(1:npti), t_s_1d(1:npti,jk), t_s(:,:,jk,kl) )
	387	CALL tab_2d_1d( npti, nptidx(1:npti), e_s_1d(1:npti,jk), e_s(:,:,jk,kl) )
[8586]	388	END DO
	389	DO jk = 1, nlay_i
[8637]	390	CALL tab_2d_1d( npti, nptidx(1:npti), t_i_1d (1:npti,jk), t_i (:,:,jk,kl) )
	391	CALL tab_2d_1d( npti, nptidx(1:npti), e_i_1d (1:npti,jk), e_i (:,:,jk,kl) )
	392	CALL tab_2d_1d( npti, nptidx(1:npti), sz_i_1d(1:npti,jk), sz_i(:,:,jk,kl) )
[8586]	393	END DO
[8637]	394	CALL tab_2d_1d( npti, nptidx(1:npti), a_ip_1d (1:npti), a_ip (:,:,kl) )
	395	CALL tab_2d_1d( npti, nptidx(1:npti), h_ip_1d (1:npti), h_ip (:,:,kl) )
[13284]	396	CALL tab_2d_1d( npti, nptidx(1:npti), h_il_1d (1:npti), h_il (:,:,kl) )
[8586]	397	!
[9910]	398	CALL tab_2d_1d( npti, nptidx(1:npti), qprec_ice_1d (1:npti), qprec_ice )
	399	CALL tab_2d_1d( npti, nptidx(1:npti), qsr_ice_1d (1:npti), qsr_ice (:,:,kl) )
	400	CALL tab_2d_1d( npti, nptidx(1:npti), qns_ice_1d (1:npti), qns_ice (:,:,kl) )
	401	CALL tab_2d_1d( npti, nptidx(1:npti), evap_ice_1d (1:npti), evap_ice(:,:,kl) )
	402	CALL tab_2d_1d( npti, nptidx(1:npti), dqns_ice_1d (1:npti), dqns_ice(:,:,kl) )
	403	CALL tab_2d_1d( npti, nptidx(1:npti), t_bo_1d (1:npti), t_bo )
	404	CALL tab_2d_1d( npti, nptidx(1:npti), sprecip_1d (1:npti), sprecip )
[9913]	405	CALL tab_2d_1d( npti, nptidx(1:npti), qsb_ice_bot_1d(1:npti), qsb_ice_bot )
[9910]	406	CALL tab_2d_1d( npti, nptidx(1:npti), fhld_1d (1:npti), fhld )
[8813]	407
[9910]	408	CALL tab_2d_1d( npti, nptidx(1:npti), qml_ice_1d (1:npti), qml_ice (:,:,kl) )
	409	CALL tab_2d_1d( npti, nptidx(1:npti), qcn_ice_1d (1:npti), qcn_ice (:,:,kl) )
	410	CALL tab_2d_1d( npti, nptidx(1:npti), qtr_ice_top_1d(1:npti), qtr_ice_top(:,:,kl) )
[8586]	411	!
	412	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sni_1d(1:npti), wfx_snw_sni )
	413	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sum_1d(1:npti), wfx_snw_sum )
	414	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sub_1d (1:npti), wfx_sub )
	415	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sub_1d(1:npti), wfx_snw_sub )
	416	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_ice_sub_1d(1:npti), wfx_ice_sub )
	417	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_err_sub_1d(1:npti), wfx_err_sub )
	418	!
	419	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_bog_1d (1:npti), wfx_bog )
	420	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_bom_1d (1:npti), wfx_bom )
	421	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sum_1d (1:npti), wfx_sum )
	422	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sni_1d (1:npti), wfx_sni )
	423	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_res_1d (1:npti), wfx_res )
	424	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_spr_1d (1:npti), wfx_spr )
	425	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_lam_1d (1:npti), wfx_lam )
[8637]	426	CALL tab_2d_1d( npti, nptidx(1:npti), wfx_pnd_1d (1:npti), wfx_pnd )
[8586]	427	!
	428	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bog_1d (1:npti), sfx_bog )
	429	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bom_1d (1:npti), sfx_bom )
	430	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sum_1d (1:npti), sfx_sum )
	431	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sni_1d (1:npti), sfx_sni )
	432	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bri_1d (1:npti), sfx_bri )
	433	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_res_1d (1:npti), sfx_res )
	434	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sub_1d (1:npti), sfx_sub )
	435	CALL tab_2d_1d( npti, nptidx(1:npti), sfx_lam_1d (1:npti), sfx_lam )
	436	!
[9910]	437	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_thd_1d (1:npti), hfx_thd )
	438	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_spr_1d (1:npti), hfx_spr )
	439	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_sum_1d (1:npti), hfx_sum )
	440	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_bom_1d (1:npti), hfx_bom )
	441	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_bog_1d (1:npti), hfx_bog )
	442	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_dif_1d (1:npti), hfx_dif )
	443	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_opw_1d (1:npti), hfx_opw )
	444	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_snw_1d (1:npti), hfx_snw )
	445	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_sub_1d (1:npti), hfx_sub )
	446	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_res_1d (1:npti), hfx_res )
[8586]	447	CALL tab_2d_1d( npti, nptidx(1:npti), hfx_err_dif_1d(1:npti), hfx_err_dif )
	448	!
	449	! ocean surface fields
	450	CALL tab_2d_1d( npti, nptidx(1:npti), sst_1d(1:npti), sst_m )
	451	CALL tab_2d_1d( npti, nptidx(1:npti), sss_1d(1:npti), sss_m )
[13642]	452	CALL tab_2d_1d( npti, nptidx(1:npti), frq_m_1d(1:npti), frq_m )
[10786]	453	!
	454	! to update ice age
	455	CALL tab_2d_1d( npti, nptidx(1:npti), o_i_1d (1:npti), o_i (:,:,kl) )
	456	CALL tab_2d_1d( npti, nptidx(1:npti), oa_i_1d(1:npti), oa_i(:,:,kl) )
	457	!
[8586]	458	! --- Change units of e_i, e_s from J/m2 to J/m3 --- !
	459	DO jk = 1, nlay_i
	460	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
	461	END DO
	462	DO jk = 1, nlay_s
	463	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
	464	END DO
	465	!
	466	! !---------------------!
	467	CASE( 2 ) !== from 1D to 2D ==!
	468	! !---------------------!
	469	! --- Change units of e_i, e_s from J/m3 to J/m2 --- !
	470	DO jk = 1, nlay_i
	471	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
	472	END DO
	473	DO jk = 1, nlay_s
	474	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
	475	END DO
	476	!
	477	! Change thickness to volume (replaces routine ice_var_eqv2glo)
[8637]	478	v_i_1d (1:npti) = h_i_1d (1:npti) * a_i_1d (1:npti)
	479	v_s_1d (1:npti) = h_s_1d (1:npti) * a_i_1d (1:npti)
	480	sv_i_1d(1:npti) = s_i_1d (1:npti) * v_i_1d (1:npti)
	481	v_ip_1d(1:npti) = h_ip_1d(1:npti) * a_ip_1d(1:npti)
[13284]	482	v_il_1d(1:npti) = h_il_1d(1:npti) * a_ip_1d(1:npti)
[10786]	483	oa_i_1d(1:npti) = o_i_1d (1:npti) * a_i_1d (1:npti)
[8586]	484
	485	CALL tab_1d_2d( npti, nptidx(1:npti), at_i_1d(1:npti), at_i )
	486	CALL tab_1d_2d( npti, nptidx(1:npti), a_i_1d (1:npti), a_i (:,:,kl) )
[8637]	487	CALL tab_1d_2d( npti, nptidx(1:npti), h_i_1d (1:npti), h_i (:,:,kl) )
	488	CALL tab_1d_2d( npti, nptidx(1:npti), h_s_1d (1:npti), h_s (:,:,kl) )
[8586]	489	CALL tab_1d_2d( npti, nptidx(1:npti), t_su_1d(1:npti), t_su(:,:,kl) )
[8637]	490	CALL tab_1d_2d( npti, nptidx(1:npti), s_i_1d (1:npti), s_i (:,:,kl) )
[8586]	491	DO jk = 1, nlay_s
[8637]	492	CALL tab_1d_2d( npti, nptidx(1:npti), t_s_1d(1:npti,jk), t_s(:,:,jk,kl) )
	493	CALL tab_1d_2d( npti, nptidx(1:npti), e_s_1d(1:npti,jk), e_s(:,:,jk,kl) )
[8586]	494	END DO
	495	DO jk = 1, nlay_i
[8637]	496	CALL tab_1d_2d( npti, nptidx(1:npti), t_i_1d (1:npti,jk), t_i (:,:,jk,kl) )
	497	CALL tab_1d_2d( npti, nptidx(1:npti), e_i_1d (1:npti,jk), e_i (:,:,jk,kl) )
	498	CALL tab_1d_2d( npti, nptidx(1:npti), sz_i_1d(1:npti,jk), sz_i(:,:,jk,kl) )
[8586]	499	END DO
[8637]	500	CALL tab_1d_2d( npti, nptidx(1:npti), a_ip_1d (1:npti), a_ip (:,:,kl) )
	501	CALL tab_1d_2d( npti, nptidx(1:npti), h_ip_1d (1:npti), h_ip (:,:,kl) )
[13284]	502	CALL tab_1d_2d( npti, nptidx(1:npti), h_il_1d (1:npti), h_il (:,:,kl) )
[8586]	503	!
	504	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sni_1d(1:npti), wfx_snw_sni )
	505	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sum_1d(1:npti), wfx_snw_sum )
	506	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sub_1d (1:npti), wfx_sub )
	507	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sub_1d(1:npti), wfx_snw_sub )
	508	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_ice_sub_1d(1:npti), wfx_ice_sub )
	509	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_err_sub_1d(1:npti), wfx_err_sub )
	510	!
	511	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_bog_1d (1:npti), wfx_bog )
	512	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_bom_1d (1:npti), wfx_bom )
	513	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sum_1d (1:npti), wfx_sum )
	514	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sni_1d (1:npti), wfx_sni )
	515	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_res_1d (1:npti), wfx_res )
	516	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_spr_1d (1:npti), wfx_spr )
	517	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_lam_1d (1:npti), wfx_lam )
[8813]	518	CALL tab_1d_2d( npti, nptidx(1:npti), wfx_pnd_1d (1:npti), wfx_pnd )
[8586]	519	!
	520	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bog_1d (1:npti), sfx_bog )
	521	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bom_1d (1:npti), sfx_bom )
	522	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sum_1d (1:npti), sfx_sum )
	523	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sni_1d (1:npti), sfx_sni )
	524	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bri_1d (1:npti), sfx_bri )
	525	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_res_1d (1:npti), sfx_res )
	526	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sub_1d (1:npti), sfx_sub )
	527	CALL tab_1d_2d( npti, nptidx(1:npti), sfx_lam_1d (1:npti), sfx_lam )
	528	!
[9912]	529	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_thd_1d (1:npti), hfx_thd )
	530	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_spr_1d (1:npti), hfx_spr )
	531	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_sum_1d (1:npti), hfx_sum )
	532	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_bom_1d (1:npti), hfx_bom )
	533	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_bog_1d (1:npti), hfx_bog )
	534	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_dif_1d (1:npti), hfx_dif )
	535	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_opw_1d (1:npti), hfx_opw )
	536	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_snw_1d (1:npti), hfx_snw )
	537	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_sub_1d (1:npti), hfx_sub )
	538	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_res_1d (1:npti), hfx_res )
[8586]	539	CALL tab_1d_2d( npti, nptidx(1:npti), hfx_err_dif_1d(1:npti), hfx_err_dif )
	540	!
[9910]	541	CALL tab_1d_2d( npti, nptidx(1:npti), qns_ice_1d (1:npti), qns_ice (:,:,kl) )
	542	CALL tab_1d_2d( npti, nptidx(1:npti), qtr_ice_bot_1d(1:npti), qtr_ice_bot(:,:,kl) )
[10534]	543	! effective conductivity and 1st layer temperature (ln_cndflx=T)
[8933]	544	CALL tab_1d_2d( npti, nptidx(1:npti), cnd_ice_1d(1:npti), cnd_ice(:,:,kl) )
	545	CALL tab_1d_2d( npti, nptidx(1:npti), t1_ice_1d (1:npti), t1_ice (:,:,kl) )
[8586]	546	! SIMIP diagnostics
[9916]	547	CALL tab_1d_2d( npti, nptidx(1:npti), t_si_1d (1:npti), t_si (:,:,kl) )
	548	CALL tab_1d_2d( npti, nptidx(1:npti), qcn_ice_bot_1d(1:npti), qcn_ice_bot(:,:,kl) )
	549	CALL tab_1d_2d( npti, nptidx(1:npti), qcn_ice_top_1d(1:npti), qcn_ice_top(:,:,kl) )
[14885]	550	CALL tab_1d_2d( npti, nptidx(1:npti), qml_ice_1d (1:npti), qml_ice (:,:,kl) )
[8586]	551	! extensive variables
	552	CALL tab_1d_2d( npti, nptidx(1:npti), v_i_1d (1:npti), v_i (:,:,kl) )
	553	CALL tab_1d_2d( npti, nptidx(1:npti), v_s_1d (1:npti), v_s (:,:,kl) )
	554	CALL tab_1d_2d( npti, nptidx(1:npti), sv_i_1d(1:npti), sv_i(:,:,kl) )
[8637]	555	CALL tab_1d_2d( npti, nptidx(1:npti), v_ip_1d(1:npti), v_ip(:,:,kl) )
[13284]	556	CALL tab_1d_2d( npti, nptidx(1:npti), v_il_1d(1:npti), v_il(:,:,kl) )
[10786]	557	CALL tab_1d_2d( npti, nptidx(1:npti), oa_i_1d(1:npti), oa_i(:,:,kl) )
[13284]	558	! check convergence of heat diffusion scheme
	559	IF( ln_zdf_chkcvg ) THEN
	560	CALL tab_1d_2d( npti, nptidx(1:npti), tice_cvgerr_1d(1:npti), ztice_cvgerr(:,:,kl) )
	561	CALL tab_1d_2d( npti, nptidx(1:npti), tice_cvgstp_1d(1:npti), ztice_cvgstp(:,:,kl) )
	562	ENDIF
[8586]	563	!
	564	END SELECT
	565	!
	566	END SUBROUTINE ice_thd_1d2d
	567
	568
	569	SUBROUTINE ice_thd_init
[8637]	570	!!-------------------------------------------------------------------
[8586]	571	!! * ROUTINE ice_thd_init *
	572	!!
	573	!! ** Purpose : Physical constants and parameters associated with
	574	!! ice thermodynamics
	575	!!
	576	!! ** Method : Read the namthd namelist and check the parameters
	577	!! called at the first timestep (nit000)
	578	!!
	579	!! ** input : Namelist namthd
	580	!!-------------------------------------------------------------------
	581	INTEGER :: ios ! Local integer output status for namelist read
	582	!!
[13284]	583	NAMELIST/namthd/ ln_icedH, ln_icedA, ln_icedO, ln_icedS, ln_leadhfx
[8586]	584	!!-------------------------------------------------------------------
	585	!
	586	REWIND( numnam_ice_ref ) ! Namelist namthd in reference namelist : Ice thermodynamics
	587	READ ( numnam_ice_ref, namthd, IOSTAT = ios, ERR = 901)
[11536]	588	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namthd in reference namelist' )
[8586]	589	REWIND( numnam_ice_cfg ) ! Namelist namthd in configuration namelist : Ice thermodynamics
	590	READ ( numnam_ice_cfg, namthd, IOSTAT = ios, ERR = 902 )
[11536]	591	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namthd in configuration namelist' )
[9169]	592	IF(lwm) WRITE( numoni, namthd )
[8586]	593	!
	594	IF(lwp) THEN ! control print
[9169]	595	WRITE(numout,*)
[8586]	596	WRITE(numout,*) 'ice_thd_init: Ice Thermodynamics'
	597	WRITE(numout,*) '~~~~~~~~~~~~'
	598	WRITE(numout,*) ' Namelist namthd:'
[13284]	599	WRITE(numout,*) ' activate ice thick change from top/bot (T) or not (F) ln_icedH = ', ln_icedH
	600	WRITE(numout,*) ' activate lateral melting (T) or not (F) ln_icedA = ', ln_icedA
	601	WRITE(numout,*) ' activate ice growth in open-water (T) or not (F) ln_icedO = ', ln_icedO
	602	WRITE(numout,*) ' activate gravity drainage and flushing (T) or not (F) ln_icedS = ', ln_icedS
	603	WRITE(numout,*) ' heat in the leads is used to melt sea-ice before warming the ocean ln_leadhfx = ', ln_leadhfx
[8586]	604	ENDIF
	605	!
	606	CALL ice_thd_zdf_init ! set ice heat diffusion parameters
	607	IF( ln_icedA ) CALL ice_thd_da_init ! set ice lateral melting parameters
	608	IF( ln_icedO ) CALL ice_thd_do_init ! set ice growth in open water parameters
	609	CALL ice_thd_sal_init ! set ice salinity parameters
[8637]	610	CALL ice_thd_pnd_init ! set melt ponds parameters
[8586]	611	!
	612	END SUBROUTINE ice_thd_init
	613
	614	#else
	615	!!----------------------------------------------------------------------
[9570]	616	!! Default option Dummy module NO SI3 sea-ice model
[8586]	617	!!----------------------------------------------------------------------
	618	#endif
	619
	620	!!======================================================================
	621	END MODULE icethd

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source: NEMO/releases/r4.0/r4.0-HEAD/src/ICE/icethd.F90

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