1 | namelist_ice_cfg namelist_ice_ref |
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2 | |
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3 | _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ |
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4 | | 0 namelist_ice_cfg |
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5 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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6 | 0!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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7 | 0!! NEMO/LIM-3 : Ice configuration namelist. Overwrites SHARED/namelist_ice_lim3_ref |
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8 | 0!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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9 | 0 |
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10 | 0!----------------------------------------------------------------------- |
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11 | 0&namicerun ! Share parameters for dynamics/advection/thermo |
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12 | 0!----------------------------------------------------------------------- |
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13 | 0 cn_icerst_in = "restart_ice_in" ! suffix of ice restart name (input) |
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14 | 0 rn_amax_n = 0.997 ! maximum tolerated ice concentration NH |
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15 | 0 rn_amax_s = 0.950 ! maximum tolerated ice concentration SH |
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16 | 0 ln_limdiahsb = .false. ! check the heat and salt budgets (T) or not (F) |
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17 | 0 ln_limdiaout = .true. ! output the heat and salt budgets (T) or not (F) |
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18 | 0/ |
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19 | 0!----------------------------------------------------------------------- |
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20 | 0&namiceini ! ice initialisation |
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21 | 0!----------------------------------------------------------------------- |
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22 | 0/ |
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23 | 0!----------------------------------------------------------------------- |
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24 | 0&namicedyn ! ice dynamic |
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25 | 0!----------------------------------------------------------------------- |
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26 | 0/ |
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27 | 0!------------------------------------------------------------------------------ |
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28 | 0&namicehdf ! Ice horizontal diffusion |
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29 | 0!------------------------------------------------------------------------------ |
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30 | 0/ |
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31 | 0!----------------------------------------------------------------------- |
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32 | 0&namicethd ! ice thermodynamic |
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33 | 0!----------------------------------------------------------------------- |
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34 | 0 rn_cdsn = 0.50 ! thermal conductivity of the snow (0.31 W/m/K, Maykut and Untersteiner, 1971) |
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35 | 0 ! Obs: 0.1-0.5 (Lecomte et al, JAMES 2013) |
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36 | 0/ |
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37 | 0!----------------------------------------------------------------------- |
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38 | 0&namicesal ! ice salinity |
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39 | 0!----------------------------------------------------------------------- |
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40 | 0/ |
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41 | 0!----------------------------------------------------------------------- |
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42 | 0&namiceitdme ! parameters for mechanical redistribution of ice |
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43 | 0!----------------------------------------------------------------------- |
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44 | 0 rn_astar = 0.03 ! exponential measure of ridging ice fraction (nn_partfun = 1) |
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45 | 0 rn_hstar = 25.0 ! determines the maximum thickness of ridged ice (m) (Hibler, 1980) |
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46 | 0/ |
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47 | 0!----------------------------------------------------------------------- |
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48 | 0&namicedia ! ice diagnostics |
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49 | 0!----------------------------------------------------------------------- |
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50 | 0/ |
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51 | 0!------------------------------------------------------------------------------ |
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52 | 0&namiceitd ! Ice discretization |
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53 | 0!------------------------------------------------------------------------------ |
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54 | 0/ |
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55 | |
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56 | _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ |
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57 | | 1 namelist_ice_ref |
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58 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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59 | 1!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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60 | 1!! LIM3 namelist : |
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61 | 1!! 1 - Generic parameters (namicerun) |
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62 | 1!! 2 - Ice initialization (namiceini) |
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63 | 1!! 3 - Ice discretization (namiceitd) |
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64 | 1!! 4 - Ice dynamics and transport (namicedyn) |
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65 | 1!! 5 - Ice thermodynamics (namicethd) |
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66 | 1!! 6 - Ice salinity (namicesal) |
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67 | 1!! 7 - Ice mechanical redistribution (namiceitdme) |
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68 | 1!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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69 | 1! |
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70 | 1!------------------------------------------------------------------------------ |
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71 | 1&namicerun ! Generic parameters |
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72 | 1!------------------------------------------------------------------------------ |
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73 | 1 jpl = 5 ! number of ice categories |
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74 | 1 nlay_i = 2 ! number of ice layers |
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75 | 1 nlay_s = 1 ! number of snow layers (only 1 is working) |
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76 | 1 cn_icerst_in = "restart_ice" ! suffix of ice restart name (input) |
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77 | 1 cn_icerst_indir = "." ! directory from which to read input ice restarts |
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78 | 1 cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) |
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79 | 1 cn_icerst_outdir = "." ! directory in which to write output ice restarts |
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80 | 1 ln_limdyn = .true. ! ice dynamics (T) or thermodynamics only (F) |
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81 | 1 rn_amax_n = 0.999 ! maximum tolerated ice concentration NH |
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82 | 1 rn_amax_s = 0.999 ! maximum tolerated ice concentration SH |
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83 | 1 ln_limdiahsb = .false. ! check the heat and salt budgets (T) or not (F) |
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84 | 1 ln_limdiaout = .true. ! output the heat and salt budgets (T) or not (F) |
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85 | 1 ln_icectl = .false. ! ice points output for debug (T or F) |
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86 | 1 iiceprt = 10 ! i-index for debug |
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87 | 1 jiceprt = 10 ! j-index for debug |
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88 | 1/ |
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89 | 1!------------------------------------------------------------------------------ |
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90 | 1&namiceini ! Ice initialization |
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91 | 1!------------------------------------------------------------------------------ |
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92 | 1 ln_iceini = .true. ! activate ice initialization (T) or not (F) |
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93 | 1 rn_thres_sst = 2.0 ! maximum water temperature with initial ice (degC) |
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94 | 1 rn_hts_ini_n = 0.3 ! initial real snow thickness (m), North |
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95 | 1 rn_hts_ini_s = 0.3 ! " " South |
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96 | 1 rn_hti_ini_n = 3.0 ! initial real ice thickness (m), North |
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97 | 1 rn_hti_ini_s = 1.0 ! " " South |
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98 | 1 rn_ati_ini_n = 0.9 ! initial ice concentration (-), North |
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99 | 1 rn_ati_ini_s = 0.9 ! " " South |
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100 | 1 rn_smi_ini_n = 6.3 ! initial ice salinity (g/kg), North |
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101 | 1 rn_smi_ini_s = 6.3 ! " " South |
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102 | 1 rn_tmi_ini_n = 270. ! initial ice/snw temperature (K), North |
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103 | 1 rn_tmi_ini_s = 270. ! " " South |
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104 | 1/ |
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105 | 1!------------------------------------------------------------------------------ |
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106 | 1&namiceitd ! Ice discretization |
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107 | 1!------------------------------------------------------------------------------ |
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108 | 1 nn_catbnd = 2 ! computation of ice category boundaries based on |
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109 | 1 ! 1: tanh function |
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110 | 1 ! 2: h^(-alpha), function of rn_himean |
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111 | 1 rn_himean = 2.0 ! expected domain-average ice thickness (m), nn_catbnd = 2 only |
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112 | 1/ |
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113 | 1!------------------------------------------------------------------------------ |
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114 | 1&namicedyn ! Ice dynamics and transport |
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115 | 1!------------------------------------------------------------------------------ |
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116 | 1 nn_icestr = 0 ! ice strength parameteriztaion |
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117 | 1 ! 0: Hibler_79 P = pstar*<h>*exp(-c_rhg*A) |
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118 | 1 ! 1: Rothrock_75 P = Cf*coeff*integral(wr.h^2) |
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119 | 1 ln_icestr_bvf = .false. ! ice strength function brine volume (T) or not (F) |
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120 | 1 rn_pe_rdg = 17.0 ! ridging work divided by pot. energy change in ridging, if nn_icestr = 1 |
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121 | 1 rn_pstar = 2.0e+04 ! ice strength thickness parameter (N/m2), nn_icestr = 0 |
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122 | 1 rn_crhg = 20.0 ! ice strength conc. parameter (-), nn_icestr = 0 |
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123 | 1 rn_cio = 5.0e-03 ! ice-ocean drag coefficient (-) |
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124 | 1 rn_creepl = 1.0e-12 ! creep limit (s-1) |
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125 | 1 rn_ecc = 2.0 ! eccentricity of the elliptical yield curve |
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126 | 1 nn_nevp = 120 ! number of EVP subcycles |
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127 | 1 rn_relast = 0.333 ! ratio of elastic timescale to ice time step: Telast = dt_ice * rn_relast |
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128 | 1 ! advised value: 1/3 (rn_nevp=120) or 1/9 (rn_nevp=300) |
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129 | 1/ |
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130 | 1!------------------------------------------------------------------------------ |
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131 | 1&namicehdf ! Ice horizontal diffusion |
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132 | 1!------------------------------------------------------------------------------ |
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133 | 1 nn_ahi0 = -1 ! horizontal diffusivity computation |
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134 | 1 ! -1: no diffusion (bypass limhdf) |
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135 | 1 ! 0: use rn_ahi0_ref |
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136 | 1 ! 1: use rn_ahi0_ref x mean grid cell length / ( 2deg mean grid cell length ) |
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137 | 1 ! 2: use rn_ahi0_ref x grid cell length / ( 2deg mean grid cell length ) |
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138 | 1 rn_ahi0_ref = 350.0 ! horizontal sea ice diffusivity (m2/s) |
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139 | 1 ! if nn_ahi0 > 0, rn_ahi0_ref is the reference value at a nominal 2 deg resolution |
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140 | 1 nn_convfrq = 5 ! convergence check frequency of the Crant-Nicholson scheme (perf. optimization) |
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141 | 1/ |
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142 | 1!------------------------------------------------------------------------------ |
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143 | 1&namicethd ! Ice thermodynamics |
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144 | 1!------------------------------------------------------------------------------ |
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145 | 1 rn_hnewice = 0.1 ! thickness for new ice formation in open water (m) |
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146 | 1 ln_frazil = .false. ! use frazil ice collection thickness as a function of wind (T) or not (F) |
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147 | 1 rn_maxfrazb = 1.0 ! maximum fraction of frazil ice collecting at the ice base |
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148 | 1 rn_vfrazb = 0.417 ! thresold drift speed for frazil ice collecting at the ice bottom (m/s) |
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149 | 1 rn_Cfrazb = 5.0 ! squeezing coefficient for frazil ice collecting at the ice bottom |
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150 | 1 rn_himin = 0.10 ! minimum ice thickness (m) used in remapping, must be smaller than rn_hnewice |
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151 | 1 rn_betas = 0.66 ! exponent in lead-ice repratition of snow precipitation |
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152 | 1 ! betas = 1 -> equipartition, betas < 1 -> more on leads |
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153 | 1 rn_kappa_i = 1.0 ! radiation attenuation coefficient in sea ice (m-1) |
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154 | 1 nn_conv_dif = 50 ! maximal number of iterations for heat diffusion computation |
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155 | 1 rn_terr_dif = 0.0001 ! maximum temperature after heat diffusion (degC) |
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156 | 1 nn_ice_thcon= 1 ! sea ice thermal conductivity |
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157 | 1 ! 0: k = k0 + beta.S/T (Untersteiner, 1964) |
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158 | 1 ! 1: k = k0 + beta1.S/T - beta2.T (Pringle et al., 2007) |
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159 | 1 rn_cdsn = 0.31 ! thermal conductivity of the snow (0.31 W/m/K, Maykut and Untersteiner, 1971) |
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160 | 1 ! Obs: 0.1-0.5 (Lecomte et al, JAMES 2013) |
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161 | 1 nn_monocat = 0 ! virtual ITD mono-category parameterizations (1, jpl = 1 only) or not (0) |
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162 | 1 ! 2: simple piling instead of ridging --- temporary option |
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163 | 1 ! 3: activate G(he) only --- temporary option |
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164 | 1 ! 4: activate lateral melting only --- temporary option |
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165 | 1 ln_it_qnsice = .true. ! iterate the surface non-solar flux with surface temperature (T) or not (F) |
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166 | 1/ |
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167 | 1!------------------------------------------------------------------------------ |
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168 | 1&namicesal ! Ice salinity |
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169 | 1!------------------------------------------------------------------------------ |
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170 | 1 nn_icesal = 2 ! ice salinity option |
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171 | 1 ! 1: constant ice salinity (S=rn_icesal) |
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172 | 1 ! 2: varying salinity parameterization S(z,t) |
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173 | 1 ! 3: prescribed salinity profile S(z), Schwarzacher, 1959 |
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174 | 1 rn_icesal = 4. ! ice salinity (g/kg, nn_icesal = 1 only) |
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175 | 1 rn_sal_gd = 5. ! restoring ice salinity, gravity drainage (g/kg) |
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176 | 1 rn_time_gd = 1.73e+6 ! restoring time scale, gravity drainage (s) |
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177 | 1 rn_sal_fl = 2. ! restoring ice salinity, flushing (g/kg) |
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178 | 1 rn_time_fl = 8.64e+5 ! restoring time scale, flushing (s) |
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179 | 1 rn_simax = 20. ! maximum tolerated ice salinity (g/kg) |
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180 | 1 rn_simin = 0.1 ! minimum tolerated ice salinity (g/kg) |
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181 | 1/ |
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182 | 1!------------------------------------------------------------------------------ |
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183 | 1&namiceitdme ! Ice mechanical redistribution (ridging and rafting) |
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184 | 1!------------------------------------------------------------------------------ |
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185 | 1 rn_Cs = 0.5 ! fraction of shearing energy contributing to ridging |
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186 | 1 rn_fsnowrdg = 0.5 ! snow volume fraction that survives in ridging |
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187 | 1 rn_fsnowrft = 0.5 ! snow volume fraction that survives in rafting |
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188 | 1 nn_partfun = 1 ! type of ridging participation function |
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189 | 1 ! 0: linear (Thorndike et al, 1975) |
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190 | 1 ! 1: exponential (Lipscomb, 2007 |
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191 | 1 rn_gstar = 0.15 ! fractional area of thin ice being ridged (nn_partfun = 0) |
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192 | 1 rn_astar = 0.05 ! exponential measure of ridging ice fraction (nn_partfun = 1) |
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193 | 1 rn_hstar = 100.0 ! determines the maximum thickness of ridged ice (m) (Hibler, 1980) |
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194 | 1 ln_rafting = .true. ! rafting activated (T) or not (F) |
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195 | 1 rn_hraft = 0.75 ! threshold thickness for rafting (m) |
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196 | 1 rn_craft = 5.0 ! squeezing coefficient used in the rafting function |
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197 | 1 rn_por_rdg = 0.3 ! porosity of newly ridged ice (Lepparanta et al., 1995) |
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198 | 1/ |
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199 | |
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