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ice.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/ice.F90 @ 12725

Last change on this file since 12725 was 12725, checked in by clem, 4 years ago
fix previous revision. Make sure a_ip and a_ip_eff are correct
Property svn:keywords set to `Id`
File size: 39.6 KB

Rev	Line
[825]	1	MODULE ice
[2528]	2	!!======================================================================
[9019]	3	!! * MODULE ice *
	4	!! sea-ice: ice variables defined in memory
	5	!!======================================================================
[9604]	6	!! History : 3.0 ! 2008-03 (M. Vancoppenolle) Original code
	7	!! 4.0 ! 2018 (many people) SI3 [aka Sea Ice cube]
[2528]	8	!!----------------------------------------------------------------------
[9570]	9	#if defined key_si3
[825]	10	!!----------------------------------------------------------------------
[9570]	11	!! 'key_si3' SI3 sea-ice model
[825]	12	!!----------------------------------------------------------------------
[3625]	13	USE in_out_manager ! I/O manager
	14	USE lib_mpp ! MPP library
[825]	15
	16	IMPLICIT NONE
	17	PRIVATE
[2528]	18
[9019]	19	PUBLIC ice_alloc ! called by icestp.F90
[2715]	20
[834]	21	!!======================================================================
	22	!! \|
[2528]	23	!! I C E S T A T E V A R I A B L E S \|
[834]	24	!! \|
	25	!! Introduction : \|
	26	!! -------------- \|
	27	!! Every ice-covered grid cell is characterized by a series of state \|
	28	!! variables. To account for unresolved spatial variability in ice \|
	29	!! thickness, the ice cover in divided in ice thickness categories. \|
	30	!! \|
	31	!! Sea ice state variables depend on the ice thickness category \|
	32	!! \|
	33	!! Those variables are divided into two groups \|
	34	!! * Extensive (or global) variables. \|
	35	!! These are the variables that are transported by all means \|
	36	!! * Intensive (or equivalent) variables. \|
	37	!! These are the variables that are either physically more \|
	38	!! meaningful and/or used in ice thermodynamics \|
	39	!! \|
	40	!! List of ice state variables : \|
	41	!! ----------------------------- \|
	42	!! \|
	43	!!-------------\|-------------\|---------------------------------\|-------\|
	44	!! name in \| name in \| meaning \| units \|
	45	!! 2D routines \| 1D routines \| \| \|
	46	!!-------------\|-------------\|---------------------------------\|-------\|
	47	!! \|
	48	!! ******************************************************************* \|
	49	!! * Dynamical variables (prognostic) * \|
	50	!! ******************************************************************* \|
	51	!! \|
[10882]	52	!! u_ice \| - \| ice velocity in i-direction \| m/s \|
	53	!! v_ice \| - \| ice velocity in j-direction \| m/s \|
[834]	54	!! \|
	55	!! ******************************************************************* \|
	56	!! * Category dependent state variables (prognostic) * \|
	57	!! ******************************************************************* \|
	58	!! \|
	59	!! ** Global variables \|
	60	!!-------------\|-------------\|---------------------------------\|-------\|
[10882]	61	!! a_i \| a_i_1d \| Ice concentration \| \|
[834]	62	!! v_i \| - \| Ice volume per unit area \| m \|
	63	!! v_s \| - \| Snow volume per unit area \| m \|
[10882]	64	!! sv_i \| - \| Sea ice salt content \| pss.m \|
	65	!! oa_i \| - \| Sea ice areal age content \| s \|
	66	!! e_i \| \| Ice enthalpy \| J/m2 \|
	67	!! \| e_i_1d \| Ice enthalpy per unit vol. \| J/m3 \|
	68	!! e_s \| \| Snow enthalpy \| J/m2 \|
	69	!! \| e_s_1d \| Snow enthalpy per unit vol. \| J/m3 \|
	70	!! a_ip \| - \| Ice pond concentration \| \|
	71	!! v_ip \| - \| Ice pond volume per unit area\| m \|
[12720]	72	!! v_il \| v_il_1d \| Ice pond lid volume per area \| m \|
[834]	73	!! \|
	74	!!-------------\|-------------\|---------------------------------\|-------\|
	75	!! \|
	76	!! ** Equivalent variables \|
	77	!!-------------\|-------------\|---------------------------------\|-------\|
	78	!! \|
[9019]	79	!! h_i \| h_i_1d \| Ice thickness \| m \|
	80	!! h_s ! h_s_1d \| Snow depth \| m \|
[10882]	81	!! s_i ! s_i_1d \| Sea ice bulk salinity ! pss \|
	82	!! sz_i ! sz_i_1d \| Sea ice salinity profile ! pss \|
[9019]	83	!! o_i ! - \| Sea ice Age ! s \|
[4872]	84	!! t_i ! t_i_1d \| Sea ice temperature ! K \|
	85	!! t_s ! t_s_1d \| Snow temperature ! K \|
	86	!! t_su ! t_su_1d \| Sea ice surface temperature ! K \|
[10882]	87	!! h_ip \| h_ip_1d \| Ice pond thickness \| m \|
[12720]	88	!! h_il \| h_il_1d \| Ice pond lid thickness \| m \|
[834]	89	!! \|
	90	!! notes: the ice model only sees a bulk (i.e., vertically averaged) \|
	91	!! salinity, except in thermodynamic computations, for which \|
	92	!! the salinity profile is computed as a function of bulk \|
	93	!! salinity \|
	94	!! \|
	95	!! the sea ice surface temperature is not associated to any \|
	96	!! heat content. Therefore, it is not a state variable and \|
	97	!! does not have to be advected. Nevertheless, it has to be \|
	98	!! computed to determine whether the ice is melting or not \|
	99	!! \|
	100	!! ******************************************************************* \|
	101	!! * Category-summed state variables (diagnostic) * \|
	102	!! ******************************************************************* \|
[4872]	103	!! at_i \| at_i_1d \| Total ice concentration \| \|
[834]	104	!! vt_i \| - \| Total ice vol. per unit area \| m \|
	105	!! vt_s \| - \| Total snow vol. per unit ar. \| m \|
[11536]	106	!! st_i \| - \| Total Sea ice salt content \| pss.m \|
[10882]	107	!! sm_i \| - \| Mean sea ice salinity \| pss \|
[834]	108	!! tm_i \| - \| Mean sea ice temperature \| K \|
[9433]	109	!! tm_s \| - \| Mean snow temperature \| K \|
[10882]	110	!! et_i \| - \| Total ice enthalpy \| J/m2 \|
	111	!! et_s \| - \| Total snow enthalpy \| J/m2 \|
	112	!! bv_i \| - \| relative brine volume \| ??? \|
	113	!! at_ip \| - \| Total ice pond concentration \| \|
[11536]	114	!! hm_ip \| - \| Mean ice pond depth \| m \|
[10882]	115	!! vt_ip \| - \| Total ice pond vol. per unit area\| m \|
[12720]	116	!! hm_il \| - \| Mean ice pond lid depth \| m \|
	117	!! vt_il \| - \| Total ice pond lid vol. per area \| m \|
[834]	118	!!=====================================================================
[825]	119
[9019]	120	!!----------------------------------------------------------------------
[825]	121	!! * Share Module variables
[9019]	122	!!----------------------------------------------------------------------
	123	! !! ice-generic parameters namelist (nampar)
	124	INTEGER , PUBLIC :: jpl !: number of ice categories
	125	INTEGER , PUBLIC :: nlay_i !: number of ice layers
	126	INTEGER , PUBLIC :: nlay_s !: number of snow layers
[10531]	127	LOGICAL , PUBLIC :: ln_virtual_itd !: virtual ITD mono-category parameterization (T) or not (F)
[9019]	128	LOGICAL , PUBLIC :: ln_icedyn !: flag for ice dynamics (T) or not (F)
	129	LOGICAL , PUBLIC :: ln_icethd !: flag for ice thermo (T) or not (F)
	130	REAL(wp) , PUBLIC :: rn_amax_n !: maximum ice concentration Northern hemisphere
	131	REAL(wp) , PUBLIC :: rn_amax_s !: maximum ice concentration Southern hemisphere
	132	CHARACTER(len=256), PUBLIC :: cn_icerst_in !: suffix of ice restart name (input)
	133	CHARACTER(len=256), PUBLIC :: cn_icerst_out !: suffix of ice restart name (output)
	134	CHARACTER(len=256), PUBLIC :: cn_icerst_indir !: ice restart input directory
	135	CHARACTER(len=256), PUBLIC :: cn_icerst_outdir !: ice restart output directory
[1465]	136
[9019]	137	! !! ice-itd namelist (namitd)
	138	REAL(wp), PUBLIC :: rn_himin !: minimum ice thickness
[7646]	139
[9019]	140	! !! ice-dynamics namelist (namdyn)
	141	REAL(wp), PUBLIC :: rn_ishlat !: lateral boundary condition for sea-ice
[10413]	142	LOGICAL , PUBLIC :: ln_landfast_L16 !: landfast ice parameterizationfrom lemieux2016
	143	REAL(wp), PUBLIC :: rn_depfra !: fraction of ocean depth that ice must reach to initiate landfast ice
	144	REAL(wp), PUBLIC :: rn_icebfr !: maximum bottom stress per unit area of contact (lemieux2016) or per unit volume (home)
	145	REAL(wp), PUBLIC :: rn_lfrelax !: relaxation time scale (s-1) to reach static friction
	146	REAL(wp), PUBLIC :: rn_tensile !: isotropic tensile strength
[9019]	147	!
[10413]	148	! !! ice-ridging/rafting namelist (namdyn_rdgrft)
	149	REAL(wp), PUBLIC :: rn_crhg !: determines changes in ice strength (also used for landfast param)
	150	!
	151	! !! ice-rheology namelist (namdyn_rhg)
[9019]	152	LOGICAL , PUBLIC :: ln_aEVP !: using adaptive EVP (T or F)
[5123]	153	REAL(wp), PUBLIC :: rn_creepl !: creep limit : has to be under 1.0e-9
	154	REAL(wp), PUBLIC :: rn_ecc !: eccentricity of the elliptical yield curve
[7646]	155	INTEGER , PUBLIC :: nn_nevp !: number of iterations for subcycling
[5123]	156	REAL(wp), PUBLIC :: rn_relast !: ratio => telast/rdt_ice (1/3 or 1/9 depending on nb of subcycling nevp)
[9019]	157	!
[10413]	158	! !! ice-advection namelist (namdyn_adv)
	159	LOGICAL , PUBLIC :: ln_adv_Pra !: Prather advection scheme
	160	LOGICAL , PUBLIC :: ln_adv_UMx !: Ultimate-Macho advection scheme
	161	!
[10535]	162	! !! ice-surface boundary conditions namelist (namsbc)
[9019]	163	! -- icethd_dh -- !
	164	REAL(wp), PUBLIC :: rn_blow_s !: coef. for partitioning of snowfall between leads and sea ice
	165	! -- icethd -- !
	166	REAL(wp), PUBLIC :: rn_cio !: drag coefficient for oceanic stress
	167	INTEGER , PUBLIC :: nn_flxdist !: Redistribute heat flux over ice categories
	168	! ! =-1 Do nothing (needs N(cat) fluxes)
	169	! ! = 0 Average N(cat) fluxes then apply the average over the N(cat) ice
	170	! ! = 1 Average N(cat) fluxes then redistribute over the N(cat) ice using T-ice and albedo sensitivity
	171	! ! = 2 Redistribute a single flux over categories
[10534]	172	LOGICAL , PUBLIC :: ln_cndflx !: use conduction flux as surface boundary condition (instead of qsr and qns)
	173	LOGICAL , PUBLIC :: ln_cndemulate !: emulate conduction flux (if not provided)
	174	! ! Conduction flux as surface forcing or not
	175	INTEGER, PUBLIC, PARAMETER :: np_cnd_OFF = 0 !: no forcing from conduction flux (ice thermodynamics forced via qsr and qns)
	176	INTEGER, PUBLIC, PARAMETER :: np_cnd_ON = 1 !: forcing from conduction flux (SM0L) (compute qcn and qsr_tr via sbcblk.F90 or sbccpl.F90)
	177	INTEGER, PUBLIC, PARAMETER :: np_cnd_EMU = 2 !: emulate conduction flux via icethd_zdf.F90 (BL99) (1st round compute qcn and qsr_tr, 2nd round use it)
[5123]	178
[9019]	179	! !! ice-vertical diffusion namelist (namthd_zdf)
	180	LOGICAL , PUBLIC :: ln_cndi_U64 !: thermal conductivity: Untersteiner (1964)
	181	LOGICAL , PUBLIC :: ln_cndi_P07 !: thermal conductivity: Pringle et al (2007)
[7646]	182	REAL(wp), PUBLIC :: rn_kappa_i !: coef. for the extinction of radiation Grenfell et al. (2006) [1/m]
[9019]	183	REAL(wp), PUBLIC :: rn_cnd_s !: thermal conductivity of the snow [W/m/K]
[7646]	184
[9019]	185	! !! ice-salinity namelist (namthd_sal)
[7646]	186	INTEGER , PUBLIC :: nn_icesal !: salinity configuration used in the model
	187	! ! 1 - constant salinity in both space and time
	188	! ! 2 - prognostic salinity (s(z,t))
	189	! ! 3 - salinity profile, constant in time
	190	REAL(wp), PUBLIC :: rn_icesal !: bulk salinity (ppt) in case of constant salinity
	191	REAL(wp), PUBLIC :: rn_simax !: maximum ice salinity [PSU]
	192	REAL(wp), PUBLIC :: rn_simin !: minimum ice salinity [PSU]
[825]	193
[9019]	194	! !!** ice-ponds namelist (namthd_pnd)
[11536]	195	LOGICAL , PUBLIC :: ln_pnd !: Melt ponds (T) or not (F)
[12720]	196	LOGICAL , PUBLIC :: ln_pnd_H12 !: Melt ponds scheme from Holland et al (2012), Flocco et al (2007, 2010)
	197	LOGICAL, PUBLIC :: ln_pnd_lids !: Allow ponds to have frozen lids
	198	LOGICAL, PUBLIC :: ln_pnd_flush !: Allow ponds to flush thru the ice
	199	REAL(wp), PUBLIC :: rn_apnd_min !: Minimum ice fraction that contributes to melt ponds
	200	REAL(wp), PUBLIC :: rn_apnd_max !: Maximum ice fraction that contributes to melt ponds
[9019]	201	LOGICAL , PUBLIC :: ln_pnd_CST !: Melt ponds scheme with constant fraction and depth
	202	REAL(wp), PUBLIC :: rn_apnd !: prescribed pond fraction (0<rn_apnd<1)
	203	REAL(wp), PUBLIC :: rn_hpnd !: prescribed pond depth (0<rn_hpnd<1)
	204	LOGICAL , PUBLIC :: ln_pnd_alb !: melt ponds affect albedo
[825]	205
[9019]	206	! !! ice-diagnostics namelist (namdia)
	207	LOGICAL , PUBLIC :: ln_icediachk !: flag for ice diag (T) or not (F)
[11536]	208	REAL(wp), PUBLIC :: rn_icechk_cel !: rate of ice spuriously gained/lost (at any gridcell)
	209	REAL(wp), PUBLIC :: rn_icechk_glo !: rate of ice spuriously gained/lost (globally)
[9019]	210	LOGICAL , PUBLIC :: ln_icediahsb !: flag for ice diag (T) or not (F)
	211	LOGICAL , PUBLIC :: ln_icectl !: flag for sea-ice points output (T) or not (F)
	212	INTEGER , PUBLIC :: iiceprt !: debug i-point
	213	INTEGER , PUBLIC :: jiceprt !: debug j-point
	214
[7646]	215	! !!** some other parameters
[9019]	216	INTEGER , PUBLIC :: kt_ice !: iteration number
[7646]	217	REAL(wp), PUBLIC :: rdt_ice !: ice time step
	218	REAL(wp), PUBLIC :: r1_rdtice !: = 1. / rdt_ice
[5123]	219	REAL(wp), PUBLIC :: r1_nlay_i !: 1 / nlay_i
	220	REAL(wp), PUBLIC :: r1_nlay_s !: 1 / nlay_s
[7646]	221	REAL(wp), PUBLIC :: rswitch !: switch for the presence of ice (1) or not (0)
[9019]	222	REAL(wp), PUBLIC :: rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft !: conservation diagnostics
	223	REAL(wp), PUBLIC, PARAMETER :: epsi06 = 1.e-06_wp !: small number
	224	REAL(wp), PUBLIC, PARAMETER :: epsi10 = 1.e-10_wp !: small number
	225	REAL(wp), PUBLIC, PARAMETER :: epsi20 = 1.e-20_wp !: small number
[4990]	226
[7646]	227	! !!** define arrays
[9019]	228	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_oce,v_oce !: surface ocean velocity used in ice dynamics
	229	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ht_i_new !: ice collection thickness accreted in leads
[7646]	230	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: strength !: ice strength
[2715]	231	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: stress1_i, stress2_i, stress12_i !: 1st, 2nd & diagonal stress tensor element
[7646]	232	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: delta_i !: ice rheology elta factor (Flato & Hibler 95) [s-1]
[9604]	233	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: divu_i !: Divergence of the velocity field [s-1]
	234	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: shear_i !: Shear of the velocity field [s-1]
[2715]	235	!
	236	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: t_bo !: Sea-Ice bottom temperature [Kelvin]
[4688]	237	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qlead !: heat balance of the lead (or of the open ocean)
[9913]	238	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qsb_ice_bot !: net downward heat flux from the ice to the ocean
[4688]	239	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fhld !: heat flux from the lead used for bottom melting
	240
[10882]	241	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw !: mass flux from snow-ocean mass exchange [kg.m-2.s-1]
	242	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_sni !: mass flux from snow ice growth component of wfx_snw [kg.m-2.s-1]
	243	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_sum !: mass flux from surface melt component of wfx_snw [kg.m-2.s-1]
	244	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_pnd !: mass flux from melt pond-ocean mass exchange [kg.m-2.s-1]
	245	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_spr !: mass flux from snow precipitation on ice [kg.m-2.s-1]
	246	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_sub !: mass flux from sublimation of snow/ice [kg.m-2.s-1]
	247	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_sub !: mass flux from snow sublimation [kg.m-2.s-1]
	248	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_ice_sub !: mass flux from ice sublimation [kg.m-2.s-1]
[4688]	249
[10882]	250	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_dyn !: mass flux from dynamical component of wfx_snw [kg.m-2.s-1]
[9019]	251
[10882]	252	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_ice !: mass flux from ice-ocean mass exchange [kg.m-2.s-1]
	253	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_sni !: mass flux from snow ice growth component of wfx_ice [kg.m-2.s-1]
	254	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_opw !: mass flux from lateral ice growth component of wfx_ice [kg.m-2.s-1]
	255	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_bog !: mass flux from bottom ice growth component of wfx_ice [kg.m-2.s-1]
	256	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_dyn !: mass flux from dynamical ice growth component of wfx_ice [kg.m-2.s-1]
	257	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_bom !: mass flux from bottom melt component of wfx_ice [kg.m-2.s-1]
	258	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_sum !: mass flux from surface melt component of wfx_ice [kg.m-2.s-1]
	259	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_lam !: mass flux from lateral melt component of wfx_ice [kg.m-2.s-1]
	260	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_res !: mass flux from residual component of wfx_ice [kg.m-2.s-1]
	261	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_err_sub !: mass flux error after sublimation [kg.m-2.s-1]
[4688]	262
[10882]	263	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_bog !: salt flux due to ice bottom growth [pss.kg.m-2.s-1 => g.m-2.s-1]
	264	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_bom !: salt flux due to ice bottom melt [pss.kg.m-2.s-1 => g.m-2.s-1]
	265	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_lam !: salt flux due to ice lateral melt [pss.kg.m-2.s-1 => g.m-2.s-1]
	266	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_sum !: salt flux due to ice surface melt [pss.kg.m-2.s-1 => g.m-2.s-1]
	267	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_sni !: salt flux due to snow-ice growth [pss.kg.m-2.s-1 => g.m-2.s-1]
	268	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_opw !: salt flux due to growth in open water [pss.kg.m-2.s-1 => g.m-2.s-1]
	269	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_bri !: salt flux due to brine rejection [pss.kg.m-2.s-1 => g.m-2.s-1]
	270	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_dyn !: salt flux due to porous ridged ice formation [pss.kg.m-2.s-1 => g.m-2.s-1]
	271	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_res !: salt flux due to correction on ice thick. (residual) [pss.kg.m-2.s-1 => g.m-2.s-1]
	272	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_sub !: salt flux due to ice sublimation [pss.kg.m-2.s-1 => g.m-2.s-1]
[825]	273
[9604]	274	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_bog !: total heat flux causing bottom ice growth [W.m-2]
	275	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_bom !: total heat flux causing bottom ice melt [W.m-2]
	276	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_sum !: total heat flux causing surface ice melt [W.m-2]
	277	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_opw !: total heat flux causing open water ice formation [W.m-2]
	278	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_dif !: total heat flux causing Temp change in the ice [W.m-2]
	279	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_snw !: heat flux for snow melt [W.m-2]
[6416]	280	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_err_dif !: heat flux remaining due to change in non-solar flux [W.m-2]
[10882]	281	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_err_rem !: heat flux error after heat remapping => must be 0 [W.m-2]
	282	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qt_atm_oi !: heat flux at the interface atm-[oce+ice] [W.m-2]
	283	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qt_oce_ai !: heat flux at the interface oce-[atm+ice] [W.m-2]
[6416]	284
[4688]	285	! heat flux associated with ice-atmosphere mass exchange
[9604]	286	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_sub !: heat flux for sublimation [W.m-2]
[6416]	287	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_spr !: heat flux of the snow precipitation [W.m-2]
[4688]	288
	289	! heat flux associated with ice-ocean mass exchange
[9019]	290	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_thd !: ice-ocean heat flux from thermo processes (icethd_dh) [W.m-2]
	291	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_dyn !: ice-ocean heat flux from ridging [W.m-2]
[10882]	292	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_res !: heat flux due to correction on ice thick. (residual) [W.m-2]
[4688]	293
[7646]	294	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rn_amax_2d !: maximum ice concentration 2d array
[9910]	295	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qtr_ice_bot !: transmitted solar radiation under ice
[10534]	296	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t1_ice !: temperature of the first layer (ln_cndflx=T) [K]
	297	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: cnd_ice !: effective conductivity at the top of ice/snow (ln_cndflx=T) [W.m-2.K-1]
[4688]	298
[9019]	299	!!----------------------------------------------------------------------
[834]	300	!! * Ice global state variables
[9019]	301	!!----------------------------------------------------------------------
[834]	302	!! Variables defined for each ice category
[10882]	303	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_i !: Ice thickness (m)
[7646]	304	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i !: Ice fractional areas (concentration)
[10882]	305	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_i !: Ice volume per unit area (m)
	306	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_s !: Snow volume per unit area (m)
	307	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_s !: Snow thickness (m)
	308	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t_su !: Sea-Ice Surface Temperature (K)
	309	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: s_i !: Sea-Ice Bulk salinity (pss)
	310	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sv_i !: Sea-Ice Bulk salinity * volume per area (pss.m)
	311	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: o_i !: Sea-Ice Age (s)
	312	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: oa_i !: Sea-Ice Age times ice area (s)
[7646]	313	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: bv_i !: brine volume
[825]	314
[2715]	315	!! Variables summed over all categories, or associated to all the ice in a single grid cell
[10882]	316	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice, v_ice !: components of the ice velocity (m/s)
	317	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: vt_i , vt_s !: ice and snow total volume per unit area (m)
[11536]	318	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: st_i !: Total ice salinity content (pss.m)
[7646]	319	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: at_i !: ice total fractional area (ice concentration)
	320	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ato_i !: =1-at_i ; total open water fractional area
[10882]	321	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: et_i , et_s !: ice and snow total heat content (J/m2)
	322	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_i !: mean ice temperature over all categories (K)
	323	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_s !: mean snw temperature over all categories (K)
[7646]	324	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: bvm_i !: brine volume averaged over all categories
[10882]	325	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sm_i !: mean sea ice salinity averaged over all categories (pss)
	326	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_su !: mean surface temperature over all categories (K)
	327	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hm_i !: mean ice thickness over all categories (m)
	328	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hm_s !: mean snow thickness over all categories (m)
	329	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: om_i !: mean ice age over all categories (s)
	330	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tau_icebfr !: ice friction on ocean bottom (landfast param activated)
[825]	331
[9019]	332	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: t_s !: Snow temperatures [K]
	333	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_s !: Snow enthalpy [J/m2]
	334	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: t_i !: ice temperatures [K]
	335	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_i !: ice enthalpy [J/m2]
[10882]	336	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: sz_i !: ice salinity [PSS]
[825]	337
[11627]	338	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_ip !: melt pond concentration
[10882]	339	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_ip !: melt pond volume per grid cell area [m]
[11627]	340	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_ip_frac !: melt pond fraction (a_ip/a_i)
[12720]	341	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_ip_eff !: melt pond effective fraction (not covered up by lid) (a_ip/a_i)
[11627]	342	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_ip !: melt pond depth [m]
[12720]	343	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_il !: melt pond lid volume [m]
	344	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_il !: melt pond lid thickness [m]
[825]	345
[11627]	346	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: at_ip !: total melt pond concentration
[11536]	347	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hm_ip !: mean melt pond depth [m]
[11627]	348	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: vt_ip !: total melt pond volume per gridcell area [m]
[12720]	349	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hm_il !: mean melt pond lid depth [m]
	350	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: vt_il !: total melt pond lid volume per gridcell area [m]
[9019]	351
	352	!!----------------------------------------------------------------------
[834]	353	!! * Old values of global variables
[9019]	354	!!----------------------------------------------------------------------
[12725]	355	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_s_b, v_i_b, h_s_b, h_i_b !: snow and ice volumes/thickness
	356	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i_b, sv_i_b !:
	357	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_s_b !: snow heat content
	358	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_i_b !: ice temperatures
	359	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice_b, v_ice_b !: ice velocity
	360	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: at_i_b !: ice concentration (total)
[5123]	361
[9019]	362	!!----------------------------------------------------------------------
[834]	363	!! * Ice thickness distribution variables
[9019]	364	!!----------------------------------------------------------------------
	365	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: hi_max !: Boundary of ice thickness categories in thickness space
	366	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: hi_mean !: Mean ice thickness in catgories
[4147]	367	!
[9019]	368	!!----------------------------------------------------------------------
[834]	369	!! * Ice diagnostics
[9019]	370	!!----------------------------------------------------------------------
	371	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_vi !: transport of ice volume
	372	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_vs !: transport of snw volume
[10882]	373	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_ei !: transport of ice enthalpy [W/m2]
	374	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_es !: transport of snw enthalpy [W/m2]
[9019]	375	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_sv !: transport of salt content
[4688]	376	!
[9019]	377	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_heat !: snw/ice heat content variation [W/m2]
	378	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_sice !: ice salt content variation []
	379	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_vice !: ice volume variation [m/s]
	380	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_vsnw !: snw volume variation [m/s]
	381
[11536]	382	!!----------------------------------------------------------------------
	383	!! * Ice conservation
	384	!!----------------------------------------------------------------------
	385	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_v !: conservation of ice volume
	386	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_s !: conservation of ice salt
	387	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_t !: conservation of ice heat
	388	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_fv !: conservation of ice volume
	389	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_fs !: conservation of ice salt
	390	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_ft !: conservation of ice heat
[4688]	391	!
[2715]	392	!!----------------------------------------------------------------------
[9019]	393	!! * SIMIP extra diagnostics
	394	!!----------------------------------------------------------------------
	395	! Extra sea ice diagnostics to address the data request
	396	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t_si !: Temperature at Snow-ice interface (K)
	397	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_si !: mean temperature at the snow-ice interface (K)
[9916]	398	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qcn_ice_bot !: Bottom conduction flux (W/m2)
	399	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qcn_ice_top !: Surface conduction flux (W/m2)
[9019]	400
	401	!
	402	!!----------------------------------------------------------------------
[9598]	403	!! NEMO/ICE 4.0 , NEMO Consortium (2018)
[2715]	404	!! $Id$
[10068]	405	!! Software governed by the CeCILL license (see ./LICENSE)
[2715]	406	!!----------------------------------------------------------------------
	407	CONTAINS
	408
	409	FUNCTION ice_alloc()
	410	!!-----------------------------------------------------------------
[7813]	411	!! * Routine ice_alloc *
[2715]	412	!!-----------------------------------------------------------------
	413	INTEGER :: ice_alloc
	414	!
[11536]	415	INTEGER :: ierr(16), ii
[2715]	416	!!-----------------------------------------------------------------
	417	ierr(:) = 0
	418
	419	ii = 1
[9604]	420	ALLOCATE( u_oce (jpi,jpj) , v_oce (jpi,jpj) , ht_i_new (jpi,jpj) , strength(jpi,jpj) , &
	421	& stress1_i(jpi,jpj) , stress2_i(jpi,jpj) , stress12_i(jpi,jpj) , &
	422	& delta_i (jpi,jpj) , divu_i (jpi,jpj) , shear_i (jpi,jpj) , STAT=ierr(ii) )
[2715]	423
	424	ii = ii + 1
[9913]	425	ALLOCATE( t_bo (jpi,jpj) , wfx_snw_sni(jpi,jpj) , &
	426	& wfx_snw (jpi,jpj) , wfx_snw_dyn(jpi,jpj) , wfx_snw_sum(jpi,jpj) , wfx_snw_sub(jpi,jpj) , &
	427	& wfx_ice (jpi,jpj) , wfx_sub (jpi,jpj) , wfx_ice_sub(jpi,jpj) , wfx_lam (jpi,jpj) , &
	428	& wfx_pnd (jpi,jpj) , &
	429	& wfx_bog (jpi,jpj) , wfx_dyn (jpi,jpj) , wfx_bom(jpi,jpj) , wfx_sum(jpi,jpj) , &
	430	& wfx_res (jpi,jpj) , wfx_sni (jpi,jpj) , wfx_opw(jpi,jpj) , wfx_spr(jpi,jpj) , &
[11536]	431	& rn_amax_2d (jpi,jpj) , &
[9913]	432	& qsb_ice_bot(jpi,jpj) , qlead (jpi,jpj) , &
	433	& sfx_res (jpi,jpj) , sfx_bri (jpi,jpj) , sfx_dyn(jpi,jpj) , sfx_sub(jpi,jpj) , sfx_lam(jpi,jpj) , &
	434	& sfx_bog (jpi,jpj) , sfx_bom (jpi,jpj) , sfx_sum(jpi,jpj) , sfx_sni(jpi,jpj) , sfx_opw(jpi,jpj) , &
	435	& hfx_res (jpi,jpj) , hfx_snw (jpi,jpj) , hfx_sub(jpi,jpj) , &
	436	& qt_atm_oi (jpi,jpj) , qt_oce_ai (jpi,jpj) , fhld (jpi,jpj) , &
	437	& hfx_sum (jpi,jpj) , hfx_bom (jpi,jpj) , hfx_bog(jpi,jpj) , hfx_dif(jpi,jpj) , &
	438	& hfx_opw (jpi,jpj) , hfx_thd (jpi,jpj) , hfx_dyn(jpi,jpj) , hfx_spr(jpi,jpj) , &
[9912]	439	& hfx_err_dif(jpi,jpj) , hfx_err_rem(jpi,jpj) , wfx_err_sub(jpi,jpj) , STAT=ierr(ii) )
[2715]	440
	441	! * Ice global state variables
	442	ii = ii + 1
[9910]	443	ALLOCATE( qtr_ice_bot(jpi,jpj,jpl) , cnd_ice(jpi,jpj,jpl) , t1_ice(jpi,jpj,jpl) , &
	444	& h_i (jpi,jpj,jpl) , a_i (jpi,jpj,jpl) , v_i (jpi,jpj,jpl) , &
	445	& v_s (jpi,jpj,jpl) , h_s (jpi,jpj,jpl) , t_su (jpi,jpj,jpl) , &
	446	& s_i (jpi,jpj,jpl) , sv_i (jpi,jpj,jpl) , o_i (jpi,jpj,jpl) , &
	447	& oa_i (jpi,jpj,jpl) , bv_i (jpi,jpj,jpl) , STAT=ierr(ii) )
[9604]	448
[2715]	449	ii = ii + 1
[9604]	450	ALLOCATE( u_ice(jpi,jpj) , v_ice(jpi,jpj) , &
[11536]	451	& vt_i (jpi,jpj) , vt_s (jpi,jpj) , st_i(jpi,jpj) , at_i(jpi,jpj) , ato_i(jpi,jpj) , &
	452	& et_i (jpi,jpj) , et_s (jpi,jpj) , tm_i(jpi,jpj) , tm_s(jpi,jpj) , &
	453	& sm_i (jpi,jpj) , tm_su(jpi,jpj) , hm_i(jpi,jpj) , hm_s(jpi,jpj) , &
[9604]	454	& om_i (jpi,jpj) , bvm_i(jpi,jpj) , tau_icebfr(jpi,jpj) , STAT=ierr(ii) )
	455
[2715]	456	ii = ii + 1
[5123]	457	ALLOCATE( t_s(jpi,jpj,nlay_s,jpl) , e_s(jpi,jpj,nlay_s,jpl) , STAT=ierr(ii) )
[9604]	458
[2715]	459	ii = ii + 1
[9019]	460	ALLOCATE( t_i(jpi,jpj,nlay_i,jpl) , e_i(jpi,jpj,nlay_i,jpl) , sz_i(jpi,jpj,nlay_i,jpl) , STAT=ierr(ii) )
[2715]	461
	462	ii = ii + 1
[12720]	463	ALLOCATE( a_ip(jpi,jpj,jpl) , v_ip(jpi,jpj,jpl) , a_ip_frac(jpi,jpj,jpl) , h_ip(jpi,jpj,jpl), &
	464	& v_il(jpi,jpj,jpl) , h_il(jpi,jpj,jpl) , a_ip_eff (jpi,jpj,jpl) , STAT = ierr(ii) )
[9604]	465
[2715]	466	ii = ii + 1
[12720]	467	ALLOCATE( at_ip(jpi,jpj) , hm_ip(jpi,jpj) , vt_ip(jpi,jpj) , hm_il(jpi,jpj) , vt_il(jpi,jpj) , STAT = ierr(ii) )
[2715]	468
	469	! * Old values of global variables
	470	ii = ii + 1
[12725]	471	ALLOCATE( v_s_b (jpi,jpj,jpl) , v_i_b (jpi,jpj,jpl) , h_s_b(jpi,jpj,jpl) , h_i_b(jpi,jpj,jpl), &
	472	& a_i_b (jpi,jpj,jpl) , sv_i_b(jpi,jpj,jpl) , e_i_b(jpi,jpj,nlay_i,jpl) , e_s_b(jpi,jpj,nlay_s,jpl) , &
	473	& STAT=ierr(ii) )
[9604]	474
[7646]	475	ii = ii + 1
	476	ALLOCATE( u_ice_b(jpi,jpj) , v_ice_b(jpi,jpj) , at_i_b(jpi,jpj) , STAT=ierr(ii) )
[2715]	477
	478	! * Ice thickness distribution variables
	479	ii = ii + 1
[4869]	480	ALLOCATE( hi_max(0:jpl), hi_mean(jpl), STAT=ierr(ii) )
[2715]	481
	482	! * Ice diagnostics
	483	ii = ii + 1
[7646]	484	ALLOCATE( diag_trp_vi(jpi,jpj) , diag_trp_vs (jpi,jpj) , diag_trp_ei(jpi,jpj), &
[9019]	485	& diag_trp_es(jpi,jpj) , diag_trp_sv (jpi,jpj) , diag_heat (jpi,jpj), &
	486	& diag_sice (jpi,jpj) , diag_vice (jpi,jpj) , diag_vsnw (jpi,jpj), STAT=ierr(ii) )
[2715]	487
[11536]	488	! * Ice conservation
	489	ii = ii + 1
	490	ALLOCATE( diag_v (jpi,jpj) , diag_s (jpi,jpj) , diag_t (jpi,jpj), &
	491	& diag_fv(jpi,jpj) , diag_fs(jpi,jpj) , diag_ft(jpi,jpj), STAT=ierr(ii) )
	492
[9019]	493	! * SIMIP diagnostics
	494	ii = ii + 1
[9916]	495	ALLOCATE( t_si(jpi,jpj,jpl) , tm_si(jpi,jpj) , qcn_ice_bot(jpi,jpj,jpl) , qcn_ice_top(jpi,jpj,jpl) , STAT = ierr(ii) )
[9019]	496
[2715]	497	ice_alloc = MAXVAL( ierr(:) )
[10425]	498	IF( ice_alloc /= 0 ) CALL ctl_stop( 'STOP', 'ice_alloc: failed to allocate arrays.' )
[2715]	499	!
	500	END FUNCTION ice_alloc
	501
[825]	502	#else
	503	!!----------------------------------------------------------------------
[9570]	504	!! Default option Empty module NO SI3 sea-ice model
[825]	505	!!----------------------------------------------------------------------
	506	#endif
	507
	508	!!======================================================================
	509	END MODULE ice

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