| 1 | !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 2 | !! NEMO/LIM-2 : 1 - dynamics/advection/thermo (namicerun) |
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| 3 | !! namelists 2 - ice intialisation (namiceini) |
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| 4 | !! 3 - ice dynamic (namicedyn) |
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| 5 | !! 4 - ice advection (namicetrp) |
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| 6 | !! 5 - thermodynamic (namicethd) |
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| 7 | !! 6 - ice damping (namice_dmp) |
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| 8 | !! 7 - ice diagnostics (namicedia) |
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| 9 | !! 8 - ice outputs (namiceout) |
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| 10 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 11 | |
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| 12 | !----------------------------------------------------------------------- |
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| 13 | &namicerun ! Share parameters for dynamics/advection/thermo |
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| 14 | !----------------------------------------------------------------------- |
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| 15 | cn_icerst_in = "restart_ice_in" ! suffix of ice restart name (input) |
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| 16 | cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) |
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| 17 | ln_limdyn = .true. ! ice dynamics (T) or thermodynamics only (F) |
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| 18 | ln_limdmp = .false. ! restoring ice thickness and fraction leads (T => fill namice_dmp) |
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| 19 | acrit = 1.0e-06 , 1.0e-06 ! minimum lead fraction in the Northern & Southern Hemispheres |
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| 20 | hsndif = 0.e0 ! computation of temperature in snow (=0.0) or not |
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| 21 | hicdif = 0.e0 ! computation of temperature in ice (=0.0) or not (=9999.0) |
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| 22 | / |
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| 23 | !----------------------------------------------------------------------- |
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| 24 | &namiceini ! ice initialisation |
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| 25 | !----------------------------------------------------------------------- |
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| 26 | ln_limini = .false. ! read the initial state in 'Ice_initialization.nc' (T) or not (F) |
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| 27 | ttest = 2.0 ! threshold water temperature for initial sea ice |
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| 28 | hninn = 0.5 ! initial snow thickness in the north |
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| 29 | hginn = 3.0 ! initial ice thickness in the north |
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| 30 | alinn = 0.05 ! initial leads area in the north |
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| 31 | hnins = 0.1 ! same three parameter in the south |
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| 32 | hgins = 1.0 ! " " south |
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| 33 | alins = 0.1 ! " " south |
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| 34 | / |
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| 35 | !----------------------------------------------------------------------- |
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| 36 | &namicedyn ! ice dynamic |
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| 37 | !----------------------------------------------------------------------- |
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| 38 | epsd = 1.0e-20 ! tolerance parameter |
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| 39 | alpha = 0.5 ! coefficient for semi-implicit coriolis |
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| 40 | dm = 0.6e+03 ! diffusion constant for dynamics |
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| 41 | nbiter = 1 ! number of sub-time steps for relaxation |
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| 42 | nbitdr = 100 ! maximum number of iterations for relaxation |
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| 43 | om = 0.5 ! relaxation constant |
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| 44 | resl = 5.0e-05 ! maximum value for the residual of relaxation |
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| 45 | cw = 5.0e-03 ! drag coefficient for oceanic stress |
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| 46 | angvg = 0.0 ! turning angle for oceanic stress |
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| 47 | pstar = 1.0e+04 ! 1st bulk-rheology parameter |
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| 48 | c_rhg = 20.0 ! 2nd bulk-rhelogy parameter |
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| 49 | etamn = 0.0e+07 ! minimun value for viscosity |
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| 50 | creepl = 1.0e-08 ! creep limit |
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| 51 | ecc = 2.0 ! eccentricity of the elliptical yield curve |
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| 52 | ahi0 = 350.e0 ! horizontal eddy diffusivity coefficient for sea-ice [m2/s] |
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| 53 | nevp = 120 ! number of EVP subcycling iterations |
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| 54 | telast = 9600 ! timescale for EVP elastic waves |
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| 55 | alphaevp = 1.0 ! coefficient for the solution of EVP int. stresses |
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| 56 | hminrhg = 0.05 ! ice thickness (m) below which ice velocity equal ocean velocity |
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| 57 | / |
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| 58 | !----------------------------------------------------------------------- |
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| 59 | &namicetrp ! ice transport |
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| 60 | !----------------------------------------------------------------------- |
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| 61 | bound = 0.0 ! boundary conditions (=0. no-slip, =1. free-slip) |
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| 62 | / |
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| 63 | !----------------------------------------------------------------------- |
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| 64 | &namicethd ! ice thermodynamic |
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| 65 | !----------------------------------------------------------------------- |
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| 66 | hmelt = -0.15 ! maximum melting at the bottom |
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| 67 | hiccrit = 0.3 , 0.3 ! ice thickness for lateral accretion in the Northern (Southern) Hemisphere |
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| 68 | ! ! (caution 1.0, 1.0 best value to be used!!! (gilles G.)) |
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| 69 | hicmin = 0.2 ! ice thickness corr. to max. energy stored in brine pocket |
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| 70 | hiclim = 0.05 ! minimum ice thickness |
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| 71 | amax = 0.999 ! maximum lead fraction |
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| 72 | swiqst = 1. ! energy stored in brine pocket (=1) or not (=0) |
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| 73 | sbeta = 1. ! numerical caracteritic of the scheme for diffusion in ice |
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| 74 | ! Cranck-Nicholson (=0.5), implicit (=1), explicit (=0) |
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| 75 | parlat = 0.0 ! percentage of energy used for lateral ablation |
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| 76 | hakspl = 0.5 ! slope of distr. for Hakkinen-Mellor's lateral melting |
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| 77 | hibspl = 0.5 ! slope of distribution for Hibler's lateral melting |
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| 78 | exld = 2.0 ! exponent for leads-closure rate |
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| 79 | hakdif = 1.0 ! coefficient for diffusions of ice and snow |
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| 80 | thth = 0.2 ! threshold thickness for comp. of eq. thermal conductivity |
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| 81 | hnzst = 0.1 ! thickness of the surf. layer in temp. computation |
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| 82 | parsub = 1.0 ! switch for snow sublimation or not |
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| 83 | alphs = 1.0 ! coefficient for snow density when snow ice formation |
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| 84 | / |
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| 85 | !----------------------------------------------------------------------- |
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| 86 | &namice_dmp ! damping of sea ice alone open boundaries |
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| 87 | ! ! (hard coded damping area: check if it fit your config) |
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| 88 | !----------------------------------------------------------------------- |
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| 89 | ! ! file name ! frequency (hours) ! variable ! time interp. ! clim ! 'yearly'/ ! weights ! rotation ! land/sea mask ! |
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| 90 | ! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! filename ! pairing ! filename ! |
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| 91 | sn_hicif = 'ice_damping' , -1. , 'hicif' , .true. , .true. , 'yearly' , '' , '' , '' |
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| 92 | sn_frld = 'ice_damping' , -1. , 'frld' , .true. , .true. , 'yearly' , '' , '' , '' |
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| 93 | ! |
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| 94 | cn_dir = './' ! root directory for the location of the runoff files |
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| 95 | / |
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| 96 | !----------------------------------------------------------------------- |
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| 97 | &namicedia ! ice diagnostics |
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| 98 | !----------------------------------------------------------------------- |
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| 99 | fmtinf = '1PE13.5' ! format of the output values |
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| 100 | nfrinf = 4 ! number of variables written in one line |
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| 101 | ntmoy = 1 ! instantaneous values of ice evolution or averaging |
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| 102 | ninfo = 1 ! frequency of ouputs on file ice_evolu in case of averaging |
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| 103 | / |
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| 104 | !''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' |
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| 105 | &namiceout ! parameters for outputs |
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| 106 | !,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, |
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| 107 | ! ! title of the field ! name ! units ! save ! multipl. ! additive ! |
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| 108 | ! ! ! ! ! or not ! factor ! factor ! |
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| 109 | field_1 = 'Snow thickness ', 'isnowthi', 'm ', 1 , 1.0 , 0.0 |
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| 110 | field_2 = 'Ice thickness ', 'iicethic', 'm ', 1 , 1.0 , 0.0 |
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| 111 | field_3 = 'Ice produced ', 'iiceprod', 'm/kt ', 1 , 1.0 , 0.0 |
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| 112 | field_4 = 'Ice concentration ', 'ileadfra', '% ', 1 , -1.0 , 1.0 |
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| 113 | field_5 = 'Ice temperature ', 'iicetemp', 'C ', 1 , 1.0 , -273.15 |
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| 114 | field_6 = 'Oceanic flux at the ice base ', 'ioceflxb', 'w/m2 ', 1 , 1.0 , 0.0 |
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| 115 | field_7 = 'Ice velocity u ', 'iicevelu', 'm/s ', 1 , 1.0 , 0.0 |
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| 116 | field_8 = 'Ice velocity v ', 'iicevelv', 'm/s ', 1 , 1.0 , 0.0 |
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| 117 | field_9 = 'Sea surface temperature ', 'isstempe', 'C ', 1 , 1.0 , -273.15 |
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| 118 | field_10 = 'Sea surface salinity ', 'isssalin', 'PSU ', 1 , 1.0 , 0.0 |
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| 119 | field_11 = 'Total flux at ocean surface ', 'iocetflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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| 120 | field_12 = 'Solar flux at ocean surface ', 'iocesflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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| 121 | field_13 = 'Non-solar flux at ocean surface ', 'iocwnsfl', 'w/m2 ', 1 , 1.0 , 0.0 |
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| 122 | field_14 = 'Salt flux at ocean surface ', 'iocesafl', 'kg/m2/kt', 1 , 1.0 , 0.0 |
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| 123 | field_15 = 'Wind stress u ', 'iocestru', 'Pa ', 1 , 1.0 , 0.0 |
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| 124 | field_16 = 'Wind stress v ', 'iocestrv', 'Pa ', 1 , 1.0 , 0.0 |
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| 125 | field_17 = 'Solar flux at ice/ocean surface ', 'iicesflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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| 126 | field_18 = 'Non-solar flux at ice/ocean surface', 'iicenflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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| 127 | field_19 = 'Snow precipitation ', 'isnowpre', 'kg/day ', 1 , 1.0 , 0.0 |
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| 128 | ! |
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| 129 | noumef = 19 ! number of fields |
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| 130 | / |
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