1 | !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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2 | !! NEMO/LIM2 : 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 | !! 5 - ice advection (namicetrp) |
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6 | !! 6 - thermodynamic (namicethd) |
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7 | !! 7 - ice salinity (namicesal) |
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8 | !! 8 - mechanical redistribution of ice (namiceitdme) |
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9 | !! 3 - ice diagnostics (namicedia) |
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10 | !! 9 - ice outputs (namiceout) |
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11 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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12 | |
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13 | !----------------------------------------------------------------------- |
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14 | &namicerun ! Share parameters for dynamics/advection/thermo |
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15 | !----------------------------------------------------------------------- |
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16 | cn_icerst_in = "restart_ice_in" ! suffix of ice restart name (input) |
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17 | cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) |
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18 | ln_limdyn = .true. ! ice dynamics (T) or thermodynamics only (F) |
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19 | ln_limdmp = .false. ! restoring ice thickness and fraction leads (T) or not (F) |
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20 | acrit = 1.0e-06 , 1.0e-06 ! minimum fraction for leads in the Northern (Southern) Hemisphere |
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21 | hsndif = 0.0 ! computation of temperature in snow (=0.0) or not |
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22 | hicdif = 0.0 ! computation of temperature in ice (=0.0) or not (=9999.0) |
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23 | / |
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24 | !----------------------------------------------------------------------- |
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25 | &namiceini ! ice initialisation |
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26 | !----------------------------------------------------------------------- |
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27 | ln_limini = .false. ! read the ice initial state in the file 'Ice_initialization.nc' (T) or not (F) |
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28 | ttest = 2.0 ! threshold water temperature for initial sea ice |
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29 | hninn = 0.5 ! initial snow thickness in the north |
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30 | hginn = 3.0 ! initial ice thickness in the north |
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31 | alinn = 0.05 ! initial leads area in the north |
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32 | hnins = 0.1 ! same three parameter in the south |
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33 | hgins = 1.0 ! " " south |
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34 | alins = 0.1 ! " " south |
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35 | / |
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36 | !----------------------------------------------------------------------- |
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37 | &namicedyn ! ice dynamic |
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38 | !----------------------------------------------------------------------- |
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39 | epsd = 1.0e-20 ! tolerance parameter |
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40 | alpha = 0.5 ! coefficient for semi-implicit coriolis |
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41 | dm = 0.6e+03 ! diffusion constant for dynamics |
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42 | nbiter = 1 ! number of sub-time steps for relaxation |
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43 | nbitdr = 100 ! maximum number of iterations for relaxation |
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44 | om = 0.5 ! relaxation constant |
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45 | resl = 5.0e-05 ! maximum value for the residual of relaxation |
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46 | cw = 5.0e-03 ! drag coefficient for oceanic stress |
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47 | angvg = 0.0 ! turning angle for oceanic stress |
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48 | pstar = 1.0e+04 ! 1st bulk-rheology parameter |
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49 | c_rhg = 20.0 ! 2nd bulk-rhelogy parameter |
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50 | etamn = 0.0e+07 ! minimun value for viscosity |
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51 | creepl = 2.0e-08 ! creep limit |
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52 | ecc = 2.0 ! eccentricity of the elliptical yield curve |
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53 | ahi0 = 350.e0 ! horizontal eddy diffusivity coefficient for sea-ice [m2/s] |
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54 | / |
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55 | !----------------------------------------------------------------------- |
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56 | &namicetrp ! ice transport |
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57 | !----------------------------------------------------------------------- |
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58 | bound = 0. ! boundary conditions (=0.0 no-slip, =1.0 free-slip) |
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59 | / |
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60 | !----------------------------------------------------------------------- |
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61 | &namicethd ! ice thermodynamic |
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62 | !----------------------------------------------------------------------- |
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63 | ! hmelt : maximum melting at the bottom |
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64 | ! hiccrit(1/2): ice thickness for lateral accretion in the Northern (Southern) Hemisphere |
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65 | ! caution 1.0, 1.0 best value to be used!!! (gilles G.) |
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66 | ! hicmin : ice thickness corr. to max. energy stored in brine pocket |
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67 | ! hiclim : minimum ice thickness |
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68 | ! amax : maximum lead fraction |
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69 | ! swiqst : energy stored in brine pocket (=1) or not (=0) |
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70 | ! sbeta : numerical caracteritic of the scheme for diffusion in ice |
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71 | ! Cranck-Nicholson (=0.5), implicit (=1), explicit (=0) |
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72 | ! parlat : percentage of energy used for lateral ablation |
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73 | ! hakspl : slope of distr. for Hakkinen-Mellor's lateral melting |
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74 | ! hibspl : slope of distribution for Hibler's lateral melting |
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75 | ! exld : exponent for leads-closure rate |
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76 | ! hakdif : coefficient for diffusions of ice and snow |
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77 | ! thth : threshold thickness for comp. of eq. thermal conductivity |
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78 | ! hnzst : thickness of the surf. layer in temp. computation |
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79 | ! parsub : switch for snow sublimation or not |
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80 | ! alphs : coefficient for snow density when snow ice formation |
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81 | ! |
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82 | hmelt = -0.15 ! maximum melting at the bottom |
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83 | hiccrit = 0.3 , 0.3 ! ice thickness for lateral accretion in the Northern (Southern) Hemisphere |
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84 | hicmin = 0.2 ! ice thickness corr. to max. energy stored in brine pocket |
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85 | hiclim = 0.05 ! minimum ice thickness |
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86 | amax = 0.999 ! maximum lead fraction |
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87 | swiqst = 1. ! energy stored in brine pocket (=1) or not (=0) |
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88 | sbeta = 1. ! numerical caracteritic of the scheme for diffusion in ice |
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89 | ! Cranck-Nicholson (=0.5), implicit (=1), explicit (=0) |
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90 | parlat = 0.0 ! percentage of energy used for lateral ablation |
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91 | hakspl = 0.5 ! slope of distr. for Hakkinen-Mellor's lateral melting |
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92 | hibspl = 0.5 ! slope of distribution for Hibler's lateral melting |
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93 | exld = 2.0 ! exponent for leads-closure rate |
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94 | hakdif = 1.0 ! coefficient for diffusions of ice and snow |
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95 | thth = 0.2 ! threshold thickness for comp. of eq. thermal conductivity |
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96 | hnzst = 0.1 ! thickness of the surf. layer in temp. computation |
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97 | parsub = 0.0 ! switch for snow sublimation or not |
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98 | alphs = 1.0 ! coefficient for snow density when snow ice formation |
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99 | / |
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100 | !----------------------------------------------------------------------- |
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101 | &namicedia ! ice diagnostics |
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102 | !----------------------------------------------------------------------- |
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103 | fmtinf ='1PE13.5 ' ! format of the output values |
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104 | nfrinf = 4 ! number of variables written in one line |
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105 | ntmoy = 1 ! instantaneous values of ice evolution or averaging |
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106 | ninfo = 1 ! frequency of ouputs on file ice_evolu in case of averaging |
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107 | / |
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108 | !''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' |
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109 | &namiceout ! parameters for outputs |
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110 | !,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, |
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111 | noumef = 19 ! number of fields |
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112 | ! |
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113 | ! ! title of the field ! name ! units ! save ! multipl. ! additive ! |
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114 | ! ! ! ! ! or not ! factor ! factor ! |
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115 | field_1 = 'Snow thickness ', 'isnowthi', 'm ', 1 , 1.0 , 0.0 |
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116 | field_2 = 'Ice thickness ', 'iicethic', 'm ', 1 , 1.0 , 0.0 |
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117 | field_3 = 'Ice produced ', 'iiceprod', 'm/kt ', 1 , 1.0 , 0.0 |
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118 | field_4 = 'Ice concentration ', 'ileadfra', '% ', 1 , -1.0 , 1.0 |
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119 | field_5 = 'Ice temperature ', 'iicetemp', 'C ', 1 , 1.0 , -273.15 |
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120 | field_6 = 'Oceanic flux at the ice base ', 'ioceflxb', 'w/m2 ', 1 , 1.0 , 0.0 |
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121 | field_7 = 'Ice velocity u ', 'iicevelu', 'm/s ', 1 , 1.0 , 0.0 |
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122 | field_8 = 'Ice velocity v ', 'iicevelv', 'm/s ', 1 , 1.0 , 0.0 |
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123 | field_9 = 'Sea surface temperature ', 'isstempe', 'C ', 1 , 1.0 , -273.15 |
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124 | field_10 = 'Sea surface salinity ', 'isssalin', 'PSU ', 1 , 1.0 , 0.0 |
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125 | field_11 = 'Total flux at ocean surface ', 'iocetflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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126 | field_12 = 'Solar flux at ocean surface ', 'iocesflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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127 | field_13 = 'Non-solar flux at ocean surface ', 'iocwnsfl', 'w/m2 ', 1 , 1.0 , 0.0 |
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128 | field_14 = 'Salt flux at ocean surface ', 'iocesafl', 'kg/m2/kt', 1 , 1.0 , 0.0 |
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129 | field_15 = 'Wind stress u ', 'iocestru', 'Pa ', 1 , 1.0 , 0.0 |
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130 | field_16 = 'Wind stress v ', 'iocestrv', 'Pa ', 1 , 1.0 , 0.0 |
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131 | field_17 = 'Solar flux at ice/ocean surface ', 'iicesflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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132 | field_18 = 'Non-solar flux at ice/ocean surface', 'iicenflx', 'w/m2 ', 1 , 1.0 , 0.0 |
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133 | field_19 = 'Snow precipitation ', 'isnowpre', 'kg/day ', 1 , 1.0 , 0.0 |
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134 | / |
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