[6346] | 1 | !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 2 | !! SI3 configuration namelist: Overwrites SHARED/namelist_ice_ref |
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| 3 | !! 1 - Generic parameters (nampar) |
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| 4 | !! 2 - Ice thickness discretization (namitd) |
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| 5 | !! 3 - Ice dynamics (namdyn) |
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| 6 | !! 4 - Ice ridging/rafting (namdyn_rdgrft) |
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| 7 | !! 5 - Ice rheology (namdyn_rhg) |
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| 8 | !! 6 - Ice advection (namdyn_adv) |
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| 9 | !! 7 - Ice surface boundary conditions (namsbc) |
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| 10 | !! 8 - Ice thermodynamics (namthd) |
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| 11 | !! 9 - Ice heat diffusion (namthd_zdf) |
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| 12 | !! 10 - Ice lateral melting (namthd_da) |
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| 13 | !! 11 - Ice growth in open water (namthd_do) |
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| 14 | !! 12 - Ice salinity (namthd_sal) |
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| 15 | !! 13 - Ice melt ponds (namthd_pnd) |
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| 16 | !! 14 - Ice initialization (namini) |
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| 17 | !! 15 - Ice/snow albedos (namalb) |
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| 18 | !! 16 - Ice diagnostics (namdia) |
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| 19 | !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 20 | ! |
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| 21 | !------------------------------------------------------------------------------ |
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| 22 | &nampar ! Generic parameters |
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| 23 | !------------------------------------------------------------------------------ |
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| 24 | jpl = 5 ! number of ice categories |
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| 25 | nlay_i = 2 ! number of ice layers |
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| 26 | nlay_s = 1 ! number of snw layers |
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| 27 | cn_icerst_in = "restart_ice_in" ! suffix of ice restart name (input) |
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| 28 | rn_amax_n = 0.999 ! maximum tolerated ice concentration NH |
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| 29 | rn_amax_s = 0.999 ! maximum tolerated ice concentration SH |
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| 30 | / |
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| 31 | !------------------------------------------------------------------------------ |
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| 32 | &namitd ! Ice discretization |
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| 33 | !------------------------------------------------------------------------------ |
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| 34 | / |
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| 35 | !------------------------------------------------------------------------------ |
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| 36 | &namdyn ! Ice dynamics |
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| 37 | !------------------------------------------------------------------------------ |
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| 38 | / |
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| 39 | !------------------------------------------------------------------------------ |
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| 40 | &namdyn_rdgrft ! Ice ridging/rafting |
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| 41 | !------------------------------------------------------------------------------ |
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| 42 | / |
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| 43 | !------------------------------------------------------------------------------ |
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| 44 | &namdyn_rhg ! Ice rheology |
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| 45 | !------------------------------------------------------------------------------ |
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| 46 | ln_rhg_EVP = .true. ! EVP rheology |
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| 47 | ln_aEVP = .false. ! adaptive rheology (Kimmritz et al. 2016 & 2017) |
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| 48 | rn_creepl = 2.0e-9 ! creep limit [1/s] |
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| 49 | rn_ecc = 2.0 ! eccentricity of the elliptical yield curve |
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| 50 | nn_nevp = 120 ! number of EVP subcycles |
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| 51 | rn_relast = 0.333 ! ratio of elastic timescale to ice time step: Telast = dt_ice * rn_relast |
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| 52 | ! advised value: 1/3 (rn_nevp=120) or 1/9 (rn_nevp=300) |
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| 53 | / |
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| 54 | !------------------------------------------------------------------------------ |
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| 55 | &namdyn_adv ! Ice advection |
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| 56 | !------------------------------------------------------------------------------ |
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| 57 | / |
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| 58 | !------------------------------------------------------------------------------ |
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| 59 | &namsbc ! Ice surface boundary conditions |
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| 60 | !------------------------------------------------------------------------------ |
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| 61 | rn_cio = 5.0e-03 ! ice-ocean drag coefficient (-) |
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| 62 | nn_snwfra = 2 ! calculate the fraction of ice covered by snow (for zdf and albedo) |
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| 63 | ! = 2 fraction = hsnw / (hsnw+0.02) [CICE formulation] |
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| 64 | rn_snwblow = 0.66 ! mesure of snow blowing into the leads |
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| 65 | ! = 1 => no snow blowing, < 1 => some snow blowing |
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| 66 | nn_flxdist = 2 ! Redistribute heat flux over ice categories |
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| 67 | ! = 2 Redistribute a single flux over categories |
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| 68 | ln_cndflx = .false. ! Use conduction flux as surface boundary conditions (i.e. for Jules coupling) |
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| 69 | ln_cndemulate = .false. ! emulate conduction flux (if not provided in the inputs) |
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| 70 | nn_qtrice = 0 ! Solar flux transmitted thru the surface scattering layer: |
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| 71 | ! = 0 Grenfell and Maykut 1977 (depends on cloudiness and is 0 when there is snow) |
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| 72 | ! = 1 Lebrun 2019 (equals 0.3 anytime with different melting/dry snw conductivities) |
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| 73 | / |
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| 74 | !------------------------------------------------------------------------------ |
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| 75 | &namthd ! Ice thermodynamics |
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| 76 | !------------------------------------------------------------------------------ |
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| 77 | ln_icedH = .true. ! activate ice thickness change from growing/melting (T) or not (F) |
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| 78 | ln_icedA = .true. ! activate lateral melting param. (T) or not (F) |
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| 79 | ln_icedO = .true. ! activate ice growth in open-water (T) or not (F) |
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| 80 | ln_icedS = .true. ! activate brine drainage (T) or not (F) |
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| 81 | ! |
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| 82 | ln_leadhfx = .true. ! heat in the leads is used to melt sea-ice before warming the ocean |
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| 83 | / |
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| 84 | !------------------------------------------------------------------------------ |
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| 85 | &namthd_zdf ! Ice heat diffusion |
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| 86 | !------------------------------------------------------------------------------ |
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| 87 | rn_cnd_s = 0.50 ! thermal conductivity of the snow (0.31 W/m/K, Maykut and Untersteiner, 1971) |
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| 88 | ! Obs: 0.1-0.5 (Lecomte et al, JAMES 2013) |
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| 89 | / |
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| 90 | !------------------------------------------------------------------------------ |
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| 91 | &namthd_da ! Ice lateral melting |
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| 92 | !------------------------------------------------------------------------------ |
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| 93 | / |
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| 94 | !------------------------------------------------------------------------------ |
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| 95 | &namthd_do ! Ice growth in open water |
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| 96 | !------------------------------------------------------------------------------ |
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| 97 | / |
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| 98 | !------------------------------------------------------------------------------ |
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| 99 | &namthd_sal ! Ice salinity |
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| 100 | !------------------------------------------------------------------------------ |
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| 101 | / |
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| 102 | !------------------------------------------------------------------------------ |
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| 103 | &namthd_pnd ! Melt ponds |
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| 104 | !------------------------------------------------------------------------------ |
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| 105 | ln_pnd = .true. ! activate melt ponds or not |
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| 106 | ln_pnd_LEV = .true. ! level ice melt ponds (from Flocco et al 2007,2010 & Holland et al 2012) |
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| 107 | rn_apnd_min = 0.15 ! minimum ice fraction that contributes to melt pond. range: 0.0 -- 0.15 ?? |
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| 108 | rn_apnd_max = 0.85 ! maximum ice fraction that contributes to melt pond. range: 0.7 -- 0.85 ?? |
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| 109 | ln_pnd_CST = .false. ! constant melt ponds |
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| 110 | rn_apnd = 0.2 ! prescribed pond fraction, at Tsu=0 degC |
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| 111 | rn_hpnd = 0.05 ! prescribed pond depth, at Tsu=0 degC |
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| 112 | ln_pnd_lids = .true. ! frozen lids on top of the ponds (only for ln_pnd_LEV) |
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| 113 | ln_pnd_alb = .true. ! effect of melt ponds on ice albedo |
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| 114 | / |
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| 115 | !------------------------------------------------------------------------------ |
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| 116 | &namini ! Ice initialization |
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| 117 | !------------------------------------------------------------------------------ |
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| 118 | nn_iceini_file = _AUTO_ ! netcdf file provided for initialization |
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| 119 | ! |
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| 120 | rn_thres_sst = 0.5 ! max temp. above Tfreeze with initial ice = (sst - tfreeze) |
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| 121 | rn_hti_ini_n = 1.0 ! initial ice thickness (m), North |
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| 122 | rn_hti_ini_s = 1.0 ! " " South |
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| 123 | rn_hts_ini_n = 0.3 ! initial snow thickness (m), North |
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| 124 | rn_hts_ini_s = 0.3 ! " " South |
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| 125 | rn_ati_ini_n = 0.9 ! initial ice concentration (-), North |
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| 126 | rn_ati_ini_s = 0.9 ! " " South |
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| 127 | rn_smi_ini_n = 6.3 ! initial ice salinity (g/kg), North |
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| 128 | rn_smi_ini_s = 6.3 ! " " South |
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| 129 | rn_tmi_ini_n = 270. ! initial ice temperature (K), North |
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| 130 | rn_tmi_ini_s = 270. ! " " South |
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| 131 | rn_tsu_ini_n = 270. ! initial surface temperature (K), North |
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| 132 | rn_tsu_ini_s = 270. ! " " South |
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| 133 | rn_tms_ini_n = 270. ! initial snw temperature (K), North |
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| 134 | rn_tms_ini_s = 270. ! " " South |
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| 135 | rn_apd_ini_n = 0.2 ! initial pond fraction (-), North |
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| 136 | rn_apd_ini_s = 0.2 ! " " South |
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| 137 | rn_hpd_ini_n = 0.05 ! initial pond depth (m), North |
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| 138 | rn_hpd_ini_s = 0.05 ! " " South |
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| 139 | rn_hld_ini_n = 0.0 ! initial pond lid depth (m), North |
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| 140 | rn_hld_ini_s = 0.0 ! " " South |
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| 141 | !______!______________________!___________________!___________!_____________!________!___________!__________________!__________!_______________! |
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| 142 | ! ! file name ! frequency (hours) ! variable ! time interp.! clim ! 'yearly'/ ! weights filename ! rotation ! land/sea mask ! |
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| 143 | ! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! ! pairing ! filename ! |
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| 144 | sn_hti = 'Ice_initialization' , -12 ,'sithic' , .false. , .true. , 'yearly' , '' , '', '' |
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| 145 | sn_hts = 'Ice_initialization' , -12 ,'snthic' , .false. , .true. , 'yearly' , '' , '', '' |
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| 146 | sn_ati = 'Ice_initialization' , -12 ,'siconc' , .false. , .true. , 'yearly' , '' , '', '' |
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| 147 | sn_smi = 'Ice_initialization' , -12 ,'sisali' , .false. , .true. , 'yearly' , '' , '', '' |
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| 148 | sn_tmi = 'Ice_initialization' , -12 ,'sitemp' , .false. , .true. , 'yearly' , '' , '', '' |
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| 149 | sn_tsu = 'Ice_initialization' , -12 ,'sistem' , .false. , .true. , 'yearly' , '' , '', '' |
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| 150 | sn_tms = 'NOT USED' , -12 ,'tms' , .false. , .true. , 'yearly' , '' , '', '' |
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| 151 | ! melt ponds (be careful, sn_apd is the pond concentration (not fraction), so it differs from rn_apd) |
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| 152 | sn_apd = 'NOT USED' , -12 ,'apd' , .false. , .true. , 'yearly' , '' , '', '' |
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| 153 | sn_hpd = 'NOT USED' , -12 ,'hpd' , .false. , .true. , 'yearly' , '' , '', '' |
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| 154 | cn_dir='./' |
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| 155 | / |
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| 156 | !------------------------------------------------------------------------------ |
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| 157 | &namalb ! albedo parameters |
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| 158 | !------------------------------------------------------------------------------ |
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| 159 | ! ! ! obs range (cloud-sky) |
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| 160 | rn_alb_sdry = 0.85 ! dry snow albedo : 0.85 -- 0.87 |
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| 161 | rn_alb_smlt = 0.75 ! melting snow albedo : 0.72 -- 0.82 |
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| 162 | rn_alb_idry = 0.60 ! dry ice albedo : 0.54 -- 0.65 |
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| 163 | rn_alb_imlt = 0.50 ! bare puddled ice albedo : 0.49 -- 0.58 |
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| 164 | rn_alb_dpnd = 0.27 ! ponded ice albedo : 0.10 -- 0.30 |
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| 165 | / |
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| 166 | !------------------------------------------------------------------------------ |
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| 167 | &namdia ! Diagnostics |
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| 168 | !------------------------------------------------------------------------------ |
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| 169 | ln_icediahsb = .true. ! output the heat, mass & salt budgets (T) or not (F) |
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| 170 | / |
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