- Timestamp:
- 07/16/20 13:44:06 (4 years ago)
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CONFIG/UNIFORM/v6/NEMO_v6.5/GENERAL/PARAM/NAMELIST/ORCA1/namelist_ice_cfg
r4912 r5125 24 24 cn_icerst_in = "restart_ice_in" ! suffix of ice restart name (input) 25 25 rn_amax_n = 0.997 ! maximum tolerated ice concentration NH 26 rn_amax_s = 0.9 50! maximum tolerated ice concentration SH26 rn_amax_s = 0.997 ! maximum tolerated ice concentration SH 27 27 / 28 28 !------------------------------------------------------------------------------ … … 41 41 &namdyn_rhg ! Ice rheology 42 42 !------------------------------------------------------------------------------ 43 ln_aEVP = .false. ! adaptive rheology (Kimmritz et al. 2016 & 2017) 43 ln_rhg_EVP = .true. ! EVP rheology 44 ln_aEVP = .false. ! adaptive rheology (Kimmritz et al. 2016 & 2017) 45 rn_creepl = 2.0e-9 ! creep limit [1/s] 46 rn_ecc = 2.0 ! eccentricity of the elliptical yield curve 47 nn_nevp = 120 ! number of EVP subcycles 48 rn_relast = 0.333 ! ratio of elastic timescale to ice time step: Telast = dt_ice * rn_relast 49 ! advised value: 1/3 (rn_nevp=120) or 1/9 (rn_nevp=300) 50 ln_rhg_chkcvg = .false. ! check convergence of rheology (outputs: file ice_cvg.nc & variable uice_cvg) 44 51 / 45 52 !------------------------------------------------------------------------------ … … 50 57 &namsbc ! Ice surface boundary conditions 51 58 !------------------------------------------------------------------------------ 59 rn_cio = 5.0e-03 ! ice-ocean drag coefficient (-) 60 nn_snwfra = 2 ! calculate the fraction of ice covered by snow (for zdf and albedo) 61 ! = 0 fraction = 1 (if snow) or 0 (if no snow) 62 ! = 1 fraction = 1-exp(-0.2*rhos*hsnw) [MetO formulation] 63 ! = 2 fraction = hsnw / (hsnw+0.02) [CICE formulation] 64 rn_snwblow = 0.66 ! mesure of snow blowing into the leads 65 ! = 1 => no snow blowing, < 1 => some snow blowing 66 ln_cndflx = .false. ! Use conduction flux as surface boundary conditions (i.e. for Jules coupling) 67 ln_cndemulate = .false. ! emulate conduction flux (if not provided in the inputs) 68 nn_qtrice = 1 ! Solar flux transmitted thru the surface scattering layer: 69 ! = 0 Grenfell and Maykut 1977 (depends on cloudiness and is 0 when there is snow) 70 ! = 1 Lebrun 2019 (equals 0.3 anytime with different melting/dry snw conductivities) 52 71 / 53 72 !------------------------------------------------------------------------------ 54 73 &namthd ! Ice thermodynamics 55 74 !------------------------------------------------------------------------------ 75 ln_icedH = .true. ! activate ice thickness change from growing/melting (T) or not (F) 76 ln_icedA = .true. ! activate lateral melting param. (T) or not (F) 77 ln_icedO = .true. ! activate ice growth in open-water (T) or not (F) 78 ln_icedS = .true. ! activate brine drainage (T) or not (F) 79 ! 80 ln_leadhfx = .false. ! heat in the leads is used to melt sea-ice before warming the ocean 56 81 / 57 82 !------------------------------------------------------------------------------ … … 76 101 &namthd_pnd ! Melt ponds 77 102 !------------------------------------------------------------------------------ 103 ln_pnd = .true. ! activate melt ponds or not 104 ln_pnd_LEV = .true. ! level ice melt ponds (from Flocco et al 2007,2010 & Holland et al 2012) 105 rn_apnd_min = 0.15 ! minimum ice fraction that contributes to melt pond. range: 0.0 -- 0.15 ?? 106 rn_apnd_max = 0.85 ! maximum ice fraction that contributes to melt pond. range: 0.7 -- 0.85 ?? 107 ln_pnd_CST = .false. ! constant melt ponds 108 rn_apnd = 0.2 ! prescribed pond fraction, at Tsu=0 degC 109 rn_hpnd = 0.05 ! prescribed pond depth, at Tsu=0 degC 110 ln_pnd_lids = .true. ! frozen lids on top of the ponds (only for ln_pnd_LEV) 111 ln_pnd_alb = .true. ! effect of melt ponds on ice albedo 78 112 / 79 113 !------------------------------------------------------------------------------ 80 114 &namini ! Ice initialization 81 115 !------------------------------------------------------------------------------ 116 nn_iceini_file = _AUTO_ ! netcdf file provided for initialization 117 ! 118 rn_thres_sst = 2.0 ! max temp. above Tfreeze with initial ice = (sst - tfreeze) 119 rn_hti_ini_n = 3.0 ! initial ice thickness (m), North 120 rn_hti_ini_s = 1.0 ! " " South 121 rn_hts_ini_n = 0.3 ! initial snow thickness (m), North 122 rn_hts_ini_s = 0.3 ! " " South 123 rn_ati_ini_n = 0.9 ! initial ice concentration (-), North 124 rn_ati_ini_s = 0.9 ! " " South 125 rn_smi_ini_n = 6.3 ! initial ice salinity (g/kg), North 126 rn_smi_ini_s = 6.3 ! " " South 127 rn_tmi_ini_n = 270. ! initial ice temperature (K), North 128 rn_tmi_ini_s = 270. ! " " South 129 rn_tsu_ini_n = 270. ! initial surface temperature (K), North 130 rn_tsu_ini_s = 270. ! " " South 131 rn_tms_ini_n = 270. ! initial snw temperature (K), North 132 rn_tms_ini_s = 270. ! " " South 133 rn_apd_ini_n = 0.2 ! initial pond fraction (-), North 134 rn_apd_ini_s = 0.2 ! " " South 135 rn_hpd_ini_n = 0.05 ! initial pond depth (m), North 136 rn_hpd_ini_s = 0.05 ! " " South 137 rn_hld_ini_n = 0.0 ! initial pond lid depth (m), North 138 rn_hld_ini_s = 0.0 ! " " South 139 !______!______________________!___________________!___________!_____________!________!___________!__________________!__________!_______________! 140 ! ! file name ! frequency (hours) ! variable ! time interp.! clim ! 'yearly'/ ! weights filename ! rotation ! land/sea mask ! 141 ! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! ! pairing ! filename ! 142 sn_hti = 'Ice_initialization' , -12 ,'sithic' , .false. , .true. , 'yearly' , '' , '', '' 143 sn_hts = 'Ice_initialization' , -12 ,'snthic' , .false. , .true. , 'yearly' , '' , '', '' 144 sn_ati = 'Ice_initialization' , -12 ,'siconc' , .false. , .true. , 'yearly' , '' , '', '' 145 sn_smi = 'Ice_initialization' , -12 ,'sisali' , .false. , .true. , 'yearly' , '' , '', '' 146 sn_tmi = 'Ice_initialization' , -12 ,'sitemp' , .false. , .true. , 'yearly' , '' , '', '' 147 sn_tsu = 'Ice_initialization' , -12 ,'sistem' , .false. , .true. , 'yearly' , '' , '', '' 148 sn_tms = 'NOT USED' , -12 ,'tms' , .false. , .true. , 'yearly' , '' , '', '' 149 ! melt ponds (be careful, sn_apd is the pond concentration (not fraction), so it differs from rn_apd) 150 sn_apd = 'NOT USED' , -12 ,'apd' , .false. , .true. , 'yearly' , '' , '', '' 151 sn_hpd = 'NOT USED' , -12 ,'hpd' , .false. , .true. , 'yearly' , '' , '', '' 152 cn_dir='./' 82 153 / 83 154 !------------------------------------------------------------------------------
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