!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !! NEMO/LIM3 : 1 - dynamics/advection/thermo (namicerun) !! namelists 2 - ice intialisation (namiceini) !! 3 - ice dynamic (namicedyn) !! 4 - ice advection (namicetrp) !! 5 - thermodynamic (namicethd) !! 6 - ice salinity (namicesal) !! 7 - mechanical redistribution of ice (namiceitdme) !! 8 - ice diagnostics (namicedia) !! 9 - ice outputs (namiceout) !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !----------------------------------------------------------------------- &namicerun ! Share parameters for dynamics/advection/thermo !----------------------------------------------------------------------- cn_icerst_in = "restart_ice" ! suffix of ice restart name (input) cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) ln_limdyn = .true. ! ice dynamics (T) or thermodynamics only (F) amax = 0.999 ! maximum ice concentration cai = 1.40e-3 ! atmospheric drag over sea ice cao = 1.00e-3 ! atmospheric drag over ocean ln_nicep = .false. ! Ice points output for debug (yes or no) ln_limdiahsb = .false. ! check the heat and salt budgets (T) or not (F) ln_limdiaout = .false. ! output the heat and salt budgets (T) or not (F) / !----------------------------------------------------------------------- &namiceini ! ice initialisation !----------------------------------------------------------------------- ttest = 2.0 ! threshold water temperature for initial sea ice hninn = 0.3 ! initial snow thickness in the north hnins = 0.1 ! " " south hginn = 3.50 ! initial undeformed ice thickness in the north hgins = 1.0 ! " " " south aginn = 0.95 ! initial undeformed ice concentration in the north agins = 0.9 ! " " " south sinn = 6.301 ! initial salinity in the north sins = 6.301 ! " " south / !----------------------------------------------------------------------- &namicedyn ! ice dynamic !----------------------------------------------------------------------- epsd = 1.0e-20 ! tolerance parameter alpha = 0.5 ! coefficient for semi-implicit coriolis dm = 0.6e+03 ! diffusion constant for dynamics nbiter = 1 ! number of sub-time steps for relaxation nbitdr = 500 ! maximum number of iterations for relaxation om = 0.5 ! relaxation constant resl = 5.0e-05 ! maximum value for the residual of relaxation cw = 5.0e-03 ! drag coefficient for oceanic stress angvg = 0.0 ! turning angle for oceanic stress pstar = 2.0e+04 ! 1st bulk-rheology parameter c_rhg = 20.0 ! 2nd bulk-rhelogy parameter etamn = 0.0e+07 ! minimun value for viscosity creepl = 1.0e-12 ! creep limit ecc = 2.0 ! eccentricity of the elliptical yield curve ahi0 = 350.e0 ! horizontal eddy diffusivity coefficient for sea-ice [m2/s] nevp = 300 ! number of iterations for subcycling in EVP, SB, 400 telast =9600.0 ! timescale for elastic waves, SB, 720.0 alphaevp = 1.0 ! coefficient for the solution of internal ice stresses hminrhg = 0.001 ! ice volume (a*h in m) below which ice velocity equal ocean velocity / !----------------------------------------------------------------------- &namicetrp ! ice transport !----------------------------------------------------------------------- bound = 0. ! boundary conditions (=0.0 no-slip, =1.0 free-slip) / !----------------------------------------------------------------------- &namicethd ! ice thermodynamic !----------------------------------------------------------------------- hmelt = -0.15 ! maximum melting at the bottom hiccrit = 0.1 , 0.1 ! ice thickness for lateral accretion in the Northern (Southern) Hemisphere ! caution 1.0, 1.0 best value to be used!!! (gilles G.) ???? fraz_swi = 0.0 ! use of frazil ice collection thickness in function of wind (1.0) or not (0.0) maxfrazb = 0.0 ! maximum portion of frazil ice collecting at the ice bottom vfrazb = 0.4166667 ! thresold drift speed for frazil ice collecting at the ice bottom Cfrazb = 5.0 ! squeezing coefficient for frazil ice collecting at the ice bottom hicmin = 0.2 ! ice thickness corr. to max. energy stored in brine pocket hiclim = 0.10 ! minimum ice thickness sbeta = 1. ! numerical caracteritic of the scheme for diffusion in ice ! Cranck-Nicholson (=0.5), implicit (=1), explicit (=0) parlat = 0.0 ! percentage of energy used for lateral ablation hakspl = 0.25 ! slope of distr. for Hakkinen-Mellor's lateral melting hibspl = 0.5 ! slope of distribution for Hibler's lateral melting exld = 2.0 ! exponent for leads-closure rate hakdif = 1.0 ! coefficient for diffusions of ice and snow thth = 0.2 ! threshold thickness for comp. of eq. thermal conductivity hnzst = 0.1 ! thickness of the surf. layer in temp. computation parsub = 1.0 ! switch for snow sublimation or not alphs = 1.0 ! coefficient for snow density when snow ice formation betas = 0.6 ! exponent in lead-ice fractionation of snow precipitation 0.66 ! betas = 1 -> equipartition, betas < 1 -> more on leads kappa_i = 1.0 ! extinction radiation parameter in sea ice (1.0) nconv_i_thd = 50 ! maximal number of iterations for heat diffusion computation maxer_i_thd = 0.0001 ! maximal error in temperature for heat diffusion computation thcon_i_swi = 1 ! switch for computation of thermal conductivity in the ice ! (0) Untersteiner (1964), (1) Pringle et al. (2007) / !----------------------------------------------------------------------- &namicesal ! ice salinity !----------------------------------------------------------------------- num_sal = 2 ! salinity option: 1 -> S = bulk_sal ! 2 -> S = S(z,t) with a simple parameterization ! 3 -> S = S(z) profile of Scwharzacher [1959] ! 4 -> S = S(h) Cox and Weeks [1974] bulk_sal = 4.0 ! if 1 is used, it represents the ice salinity sal_G = 5.00 ! restoring salinity for GD time_G = 1.728e+6 ! restoring time for GD sal_F = 2.00 ! restoring salinity for flushing time_F = 8.640e+5 ! restoring time for flushing s_i_max = 20.0 ! Maximum salinity s_i_min = 0.1 ! Minimum tolerated ice salinity s_i_0 = 3.5 ! 1st salinity for salinity profile s_i_1 = 4.5 ! 2nd salinity for salinity profile / !----------------------------------------------------------------------- &namiceitdme ! parameters for mechanical redistribution of ice !----------------------------------------------------------------------- ridge_scheme_swi = 0 ! which ridging scheme using (1=Rothrock,else=Hibler79) Cs = 0.50 ! shearing energy contribution to ridging Cf = 17.0 ! ratio of ridging work to PE change in ridging fsnowrdg = 0.5 ! snow fraction that survives in ridging fsnowrft = 0.5 ! snow fraction that survives in rafting Gstar = 0.15 ! fractional area of thin ice being ridged astar = 0.05 ! equivalent of gstar (0.05 for TH75 and 0.03 for weaker ice) Hstar = 100.0 ! parameter determining the maximum thickness of ridged ice raftswi = 1 ! rafting or not hparmeter = 0.75 ! threshold thickness for rafting or not Craft = 5.0 ! coefficient used in the rafting function ridge_por = 0.3 ! initial porosity of the ridged ice (typically 0.30) sal_max_ridge = 15.0 ! maximum ridged ice salinity partfun_swi = 1 ! participation function linear, TH75 (0) or exponential Letal07 (1) transfun_swi = 0 ! transfer function uniform of H80 (0) or exponential Letal07 (1) brinstren_swi = 0 ! (1) use brine volume to diminish ice strength / !----------------------------------------------------------------------- &namicedia ! ice diagnostics !----------------------------------------------------------------------- fmtinf ='1PE13.5 ' ! format of the output values nfrinf = 4 ! number of variables written in one line ntmoy = 1 ! instantaneous values of ice evolution or averaging ninfo = 1 ! frequency of ouputs on file ice_evolu in case of averaging / !!----------------------------------------------------------------------- !&namicehsb ! Heat and salt budgets !!----------------------------------------------------------------------- ! !/ !----------------------------------------------------------------------- &namiceout ! parameters for outputs !----------------------------------------------------------------------- noumef = 43 ! number of fields add_diag_swi= 1 ! 1 -> diagnose distribution in thickness space ! 0 -> only simple diagnostics ! ! ! title of the field ! name ! units ! save ! multipl. ! additive ! ! ! ! ! ! or not ! factor ! factor ! field_1 = 'Ice concentration ', 'iiceconc', '% ', 1 , 1.0 , 0.0 field_2 = 'Ice thickness ', 'iicethic', 'm ', 1 , 1.0 , 0.0 field_3 = 'Snow thickness ', 'isnowthi', 'm ', 1 , 1.0 , 0.0 field_4 = 'Daily bottom thermo ice production ', 'iicebopr', 'km3/day ', 1 , 1.0e-9 , 0.0 field_5 = 'Daily dynamic ice production ', 'iicedypr', 'km3/day ', 1 , 1.0e-9 , 0.0 field_6 = 'Oceanic flux at the ice base ', 'ioceflxb', 'w/m2 ', 1 , 1.0 , 0.0 field_7 = 'Ice velocity u ', 'iicevelu', 'm/s ', 1 , 1.0 , 0.0 field_8 = 'Ice velocity v ', 'iicevelv', 'm/s ', 1 , 1.0 , 0.0 field_9 = 'Sea surface temperature ', 'isstempe', 'C ', 1 , 1.0 , -273.15 field_10 = 'Sea surface salinity ', 'isssalin', 'PSU ', 1 , 1.0 , 0.0 field_11 = 'Total flux at ocean surface ', 'iocetflx', 'w/m2 ', 1 , 1.0 , 0.0 field_12 = 'Solar flux at ocean surface ', 'iocesflx', 'w/m2 ', 1 , 1.0 , 0.0 field_13 = 'Non-solar flux at ocean surface ', 'iocwnsfl', 'w/m2 ', 1 , 1.0 , 0.0 field_14 = 'Heat flux due to brine release ', 'iocehebr', 'w/m2 ', 1 , 1.0 , 0.0 field_15 = 'Wind stress u ', 'iocestru', 'Pa ', 1 , 1.0 , 0.0 field_16 = 'Wind stress v ', 'iocestrv', 'Pa ', 1 , 1.0 , 0.0 field_17 = 'Solar flux at ice/ocean surface ', 'iicesflx', 'w/m2 ', 1 , 1.0 , 0.0 field_18 = 'Non-solar flux at ice/ocean surface', 'iicenflx', 'w/m2 ', 1 , 1.0 , 0.0 field_19 = 'Snow precipitation ', 'isnowpre', 'kg/m2/d ', 1 , 1.0 , 0.0 field_20 = 'Mean ice salinity ', 'iicesali', 'psu ', 1 , 1.0 , 0.0 field_21 = 'Mean ice age ', 'iiceages', 'years ', 1 , 0.002739, 0.0 field_22 = 'Daily lateral thermo ice prod. ', 'iicelapr', 'km3/day ', 1 ,1.0e-9 , 0.0 field_23 = 'Daily snowice ice production ', 'iicesipr', 'km3/day ', 1 ,1.0e-9 , 0.0 field_24 = 'Mean ice temperature ', 'iicetemp', 'C ', 1 , 1.0 , -273.15 field_25 = 'Ice total heat content ', 'iiceheco', '10^9 J ', 1 , 1.0 , 0.0 field_26 = 'Ice surface temperature ', 'iicesurt', 'C ', 1 , 1.0 , -273.15 field_27 = 'Snow temperature ', 'isnotem2', 'C ', 1 , 1.0 , -273.15 field_28 = 'Fsbri - brine salt flux ', 'iicefsbr', 'kg/m2/d ', 1 , 1.0 , 0.0 field_29 = 'Fseqv - equivalent FW salt flux ', 'iicefseq', 'kg/m2/d ', 1 , 1.0 , 0.0 field_30 = 'Brine volume ', 'ibrinvol', '% ', 1 , 100.0 , 0.0 field_31 = 'Frazil ice collection thickness ', 'iicecolf', 'm ', 1 , 1.0 , 0.0 field_32 = 'Ice strength ', 'iicestre', 'N/m ', 1 , 0.001 , 0.0 field_33 = 'Ice velocity ', 'iicevelo', 'm/s ', 1 , 1.0 , 0.0 field_34 = 'Surface melt ', 'iicesume', 'km3/day ', 1 ,1.0e-9 , 0.0 field_35 = 'Bottom melt ', 'iicebome', 'km3/day ', 1 ,1.0e-9 , 0.0 field_36 = 'Divergence ', 'iicedive', '10-8s-1 ', 1 , 1.0e8 , 0.0 field_37 = 'Shear ', 'iiceshea', '10-8s-1 ', 1 , 1.0e8 , 0.0 field_38 = 'Daily resultant ice prod/melt ', 'iicerepr', 'km3/day ', 1 , 1.0e-9 , 0.0 field_39 = 'Ice volume ', 'iicevolu', 'km3 ', 1 , 1.0e-9 , 0.0 field_40 = 'Snow volume ', 'isnowvol', 'km3 ', 1 , 1.0e-9 , 0.0 field_41 = 'Fsrpo - salt flux from ridg/raft ', 'iicefsrp', 'kg/m2/d ', 1 , 1.0 , 0.0 field_42 = 'Fsres - salt flux from limupdate ', 'iicefsre', 'kg/m2/d ', 1 , 1.0 , 0.0 field_43 = 'Ice volume transport ', 'iicevtrp', 'km3/day ', 1 ,1.0e-9 , 0.0 /