!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !! NEMO/LIM-2 : 1 - dynamics/advection/thermo (namicerun) !! namelists 2 - ice intialisation (namiceini) !! 3 - ice dynamic (namicedyn) !! 4 - ice advection (namicetrp) !! 5 - thermodynamic (namicethd) !! 6 - ice damping (namice_dmp) !! 7 - ice diagnostics (namicedia) !! 8 - ice outputs (namiceout) !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !----------------------------------------------------------------------- &namicerun ! Share parameters for dynamics/advection/thermo !----------------------------------------------------------------------- cn_icerst_in = "restart_ice_in" ! suffix of ice restart name (input) cn_icerst_indir = "." ! directory from which to read input ice restarts cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) cn_icerst_outdir = "." ! directory in which to write output ice restarts ln_limdyn = .true. ! ice dynamics (T) or thermodynamics only (F) ln_limdmp = .false. ! restoring ice thickness and fraction leads (T => fill namice_dmp) acrit = 1.0e-06 , 1.0e-06 ! minimum lead fraction in the Northern & Southern Hemispheres hsndif = 0.e0 ! computation of temperature in snow (=0.0) or not hicdif = 0.e0 ! computation of temperature in ice (=0.0) or not (=9999.0) / !----------------------------------------------------------------------- &namiceini ! ice initialisation !----------------------------------------------------------------------- ln_limini = .false. ! read the initial state in 'Ice_initialization.nc' (T) or not (F) ttest = 2.0 ! threshold water temperature for initial sea ice hninn = 0.5 ! initial snow thickness in the north hginn = 3.0 ! initial ice thickness in the north alinn = 0.05 ! initial leads area in the north hnins = 0.1 ! same three parameter in the south hgins = 1.0 ! " " south alins = 0.1 ! " " 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 = 100 ! 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 = 1.0e+04 ! 1st bulk-rheology parameter c_rhg = 20.0 ! 2nd bulk-rhelogy parameter etamn = 0.0e+07 ! minimun value for viscosity rn_creepl = 1.0e-08 ! creep limit rn_ecc = 2.0 ! eccentricity of the elliptical yield curve ahi0 = 350.e0 ! horizontal eddy diffusivity coefficient for sea-ice [m2/s] nn_nevp = 120 ! number of EVP subcycling iterations telast = 9600 ! timescale for EVP elastic waves alphaevp = 1.0 ! coefficient for the solution of EVP int. stresses / !----------------------------------------------------------------------- &namicetrp ! ice transport !----------------------------------------------------------------------- bound = 0.0 ! boundary conditions (=0. no-slip, =1. free-slip) / !----------------------------------------------------------------------- &namicethd ! ice thermodynamic !----------------------------------------------------------------------- hmelt = -0.15 ! maximum melting at the bottom hiccrit = 0.3 , 0.3 ! ice thickness for lateral accretion in the Northern (Southern) Hemisphere ! ! (caution 1.0, 1.0 best value to be used!!! (gilles G.)) hicmin = 0.2 ! ice thickness corr. to max. energy stored in brine pocket hiclim = 0.05 ! minimum ice thickness amax = 0.999 ! maximum lead fraction swiqst = 1. ! energy stored in brine pocket (=1) or not (=0) 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 = 0.5 ! 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 / !----------------------------------------------------------------------- &namice_dmp ! damping of sea ice alone open boundaries ! ! (hard coded damping area: check if it fit your config) !----------------------------------------------------------------------- ! ! file name ! frequency (hours) ! variable ! time interp. ! clim ! 'yearly'/ ! weights ! rotation ! land/sea mask ! ! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! filename ! pairing ! filename ! sn_hicif = 'ice_damping' , -1. , 'hicif' , .true. , .true. , 'yearly' , '' , '' , '' sn_frld = 'ice_damping' , -1. , 'frld' , .true. , .true. , 'yearly' , '' , '' , '' ! cn_dir = './' ! root directory for the location of the runoff files / !----------------------------------------------------------------------- &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 / !''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' &namiceout ! parameters for outputs !,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ! ! title of the field ! name ! units ! save ! multipl. ! additive ! ! ! ! ! ! or not ! factor ! factor ! field_1 = 'Snow thickness ', 'isnowthi', 'm ', 1 , 1.0 , 0.0 field_2 = 'Ice thickness ', 'iicethic', 'm ', 1 , 1.0 , 0.0 field_3 = 'Ice produced ', 'iiceprod', 'm/kt ', 1 , 1.0 , 0.0 field_4 = 'Ice concentration ', 'ileadfra', '% ', 1 , -1.0 , 1.0 field_5 = 'Ice temperature ', 'iicetemp', 'C ', 1 , 1.0 , -273.15 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 = 'Salt flux at ocean surface ', 'iocesafl', 'kg/m2/kt', 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/day ', 1 , 1.0 , 0.0 ! noumef = 19 ! number of fields /