1 | !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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2 | !! NEMO/LIM3 : 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 salinity (namicesal) |
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8 | !! 7 - mechanical redistribution of ice (namiceitdme) |
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9 | !! 8 - 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" ! 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 | amax = 0.999 ! maximum ice concentration |
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20 | cai = 1.40e-3 ! atmospheric drag over sea ice (clio) |
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21 | cao = 1.00e-3 ! atmospheric drag over ocean (clio) |
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22 | ln_nicep = .false. ! Ice points output for debug (yes or no) |
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23 | ln_limdiahsb = .false. ! check the heat and salt budgets (T) or not (F) |
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24 | ln_limdiaout = .true. ! output the heat and salt budgets (T) or not (F) |
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25 | / |
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26 | !----------------------------------------------------------------------- |
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27 | &namiceini ! ice initialisation |
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28 | !----------------------------------------------------------------------- |
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29 | ln_limini = .false. ! activate ice initialization (T) or not (F) |
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30 | thres_sst = 0.0 ! threshold water temperature for initial sea ice |
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31 | hts_ini_n = 0.3 ! initial snow thickness in the north |
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32 | hts_ini_s = 0.3 ! " " south |
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33 | hti_ini_n = 1.0 ! initial ice thickness in the north |
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34 | hti_ini_s = 1.0 ! " " south |
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35 | ati_ini_n = 0.9 ! initial ice concentration in the north |
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36 | ati_ini_s = 0.9 ! " " south |
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37 | smi_ini_n = 6.301 ! initial ice salinity in the north |
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38 | smi_ini_s = 6.301 ! " " south |
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39 | tmi_ini_n = 270. ! initial ice/snw temp in the north |
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40 | tmi_ini_s = 270. ! initial ice/snw temp in the south |
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41 | / |
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42 | !----------------------------------------------------------------------- |
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43 | &namicedyn ! ice dynamic |
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44 | !----------------------------------------------------------------------- |
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45 | epsd = 1.0e-20 ! tolerance parameter |
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46 | om = 0.5 ! relaxation constant |
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47 | cw = 5.0e-03 ! drag coefficient for oceanic stress |
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48 | angvg = 0.0 ! turning angle for oceanic stress |
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49 | pstar = 2.0e+04 ! 1st bulk-rheology parameter |
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50 | c_rhg = 20.0 ! 2nd bulk-rhelogy parameter |
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51 | creepl = 1.0e-12 ! 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 | nevp = 300 ! number of iterations for subcycling in EVP, SB, 400 |
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55 | telast =9600.0 ! timescale for elastic waves, SB, 720.0 |
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56 | alphaevp = 1.0 ! coefficient for the solution of internal ice stresses |
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57 | hminrhg = 0.001 ! ice volume (a*h in m) below which ice velocity equal ocean velocity |
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58 | / |
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59 | !----------------------------------------------------------------------- |
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60 | &namicethd ! ice thermodynamic |
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61 | !----------------------------------------------------------------------- |
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62 | hmelt = -0.15 ! maximum melting at the bottom |
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63 | hiccrit = 0.1 ! ice thickness for lateral accretion |
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64 | ! caution 1.0, 1.0 best value to be used!!! (gilles G.) ???? |
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65 | fraz_swi = 0 ! use of frazil ice collection thickness in function of wind (1.0) or not (0.0) |
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66 | maxfrazb = 0.0 ! maximum portion of frazil ice collecting at the ice bottom |
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67 | vfrazb = 0.4166667 ! thresold drift speed for frazil ice collecting at the ice bottom |
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68 | Cfrazb = 5.0 ! squeezing coefficient for frazil ice collecting at the ice bottom |
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69 | hiclim = 0.10 ! minimum ice thickness |
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70 | hnzst = 0.1 ! thickness of the surf. layer in temp. computation |
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71 | parsub = 1.0 ! switch for snow sublimation or not |
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72 | betas = 0.6 ! exponent in lead-ice fractionation of snow precipitation 0.66 |
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73 | ! betas = 1 -> equipartition, betas < 1 -> more on leads |
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74 | kappa_i = 1.0 ! extinction radiation parameter in sea ice (1.0) |
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75 | nconv_i_thd = 50 ! maximal number of iterations for heat diffusion computation |
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76 | maxer_i_thd = 0.0001 ! maximal error in temperature for heat diffusion computation |
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77 | thcon_i_swi = 1 ! switch for computation of thermal conductivity in the ice |
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78 | ! (0) Untersteiner (1964), (1) Pringle et al. (2007) |
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79 | / |
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80 | !----------------------------------------------------------------------- |
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81 | &namicesal ! ice salinity |
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82 | !----------------------------------------------------------------------- |
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83 | num_sal = 2 ! salinity option: 1 -> S = bulk_sal |
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84 | ! 2 -> S = S(z,t) with a simple parameterization |
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85 | ! 3 -> S = S(z) profile of Scwharzacher [1959] |
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86 | ! 4 -> S = S(h) Cox and Weeks [1974] |
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87 | bulk_sal = 4.0 ! if 1 is used, it represents the ice salinity |
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88 | sal_G = 5.00 ! restoring salinity for GD |
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89 | time_G = 1.728e+6 ! restoring time for GD |
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90 | sal_F = 2.00 ! restoring salinity for flushing |
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91 | time_F = 8.640e+5 ! restoring time for flushing |
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92 | s_i_max = 20.0 ! Maximum salinity |
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93 | s_i_min = 0.1 ! Minimum tolerated ice salinity |
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94 | s_i_0 = 3.5 ! 1st salinity for salinity profile |
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95 | s_i_1 = 4.5 ! 2nd salinity for salinity profile |
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96 | / |
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97 | !----------------------------------------------------------------------- |
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98 | &namiceitdme ! parameters for mechanical redistribution of ice |
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99 | !----------------------------------------------------------------------- |
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100 | ridge_scheme_swi = 0 ! which ridging scheme using (1=Rothrock,else=Hibler79) |
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101 | Cs = 0.50 ! shearing energy contribution to ridging |
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102 | Cf = 17.0 ! ratio of ridging work to PE change in ridging |
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103 | fsnowrdg = 0.5 ! snow fraction that survives in ridging |
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104 | fsnowrft = 0.5 ! snow fraction that survives in rafting |
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105 | Gstar = 0.15 ! fractional area of thin ice being ridged |
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106 | astar = 0.05 ! equivalent of gstar (0.05 for TH75 and 0.03 for weaker ice) |
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107 | Hstar = 100.0 ! parameter determining the maximum thickness of ridged ice |
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108 | raft_swi = 1 ! rafting or not |
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109 | hparmeter = 0.75 ! threshold thickness for rafting or not |
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110 | Craft = 5.0 ! coefficient used in the rafting function |
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111 | ridge_por = 0.3 ! initial porosity of the ridged ice (typically 0.30) |
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112 | partfun_swi = 1 ! participation function linear, TH75 (0) or exponential Letal07 (1) |
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113 | brinstren_swi = 0 ! (1) use brine volume to diminish ice strength |
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114 | / |
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115 | !----------------------------------------------------------------------- |
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116 | &namicedia ! ice diagnostics |
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117 | !----------------------------------------------------------------------- |
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118 | fmtinf ='1PE13.5 ' ! format of the output values |
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119 | nfrinf = 4 ! number of variables written in one line |
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120 | ntmoy = 1 ! instantaneous values of ice evolution or averaging |
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121 | ninfo = 1 ! frequency of ouputs on file ice_evolu in case of averaging |
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122 | / |
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123 | !!----------------------------------------------------------------------- |
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124 | !&namicehsb ! Heat and salt budgets |
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125 | !!----------------------------------------------------------------------- |
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126 | !/ |
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127 | |
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