- Timestamp:
- 2017-12-01T18:42:21+01:00 (6 years ago)
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branches/2017/dev_CNRS_2017/NEMOGCM/CONFIG/SHARED/namelist_ice_lim3_ref
r8599 r8881 1 1 !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 2 !! LIM3 namelist: 3 !! 1 - Generic parameters (namicerun) 4 !! 2 - Diagnostics (namicediag) 5 !! 3 - Ice initialization (namiceini) 6 !! 4 - Ice discretization (namiceitd) 7 !! 5 - Ice dynamics and transport (namicedyn) 8 !! 6 - Ice diffusion (namicehdf) 9 !! 7 - Ice thermodynamics (namicethd) 10 !! 8 - Ice salinity (namicesal) 11 !! 9 - Ice mechanical redistribution (namiceitdme) 2 !! ESIM namelist: 3 !! 1 - Generic parameters (nampar) 4 !! 2 - Ice thickness discretization (namitd) 5 !! 3 - Ice dynamics (namdyn) 6 !! 4 - Ice ridging/rafting (namdyn_rdgrft) 7 !! 5 - Ice rheology (namdyn_rhg) 8 !! 6 - Ice advection (namdyn_adv) 9 !! 7 - Ice surface forcing (namforcing) 10 !! 8 - Ice thermodynamics (namthd) 11 !! 9 - Ice heat diffusion (namthd_zdf) 12 !! 10 - Ice lateral melting (namthd_da) 13 !! 11 - Ice growth in open water (namthd_do) 14 !! 12 - Ice salinity (namthd_sal) 15 !! 13 - Ice melt ponds (namthd_pnd) 16 !! 14 - Ice initialization (namini) 17 !! 15 - Ice/snow albedos (namalb) 18 !! 16 - Ice diagnostics (namdia) 12 19 !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 13 20 ! 14 21 !------------------------------------------------------------------------------ 15 &namicerun ! Generic parameters 16 !------------------------------------------------------------------------------ 17 jpl = 5 ! number of ice categories 18 nlay_i = 2 ! number of ice layers 19 nlay_s = 1 ! number of snow layers (only 1 is working) 20 rn_amax_n = 0.997 ! maximum tolerated ice concentration NH 21 rn_amax_s = 0.997 ! maximum tolerated ice concentration SH 22 cn_icerst_in = "restart_ice" ! suffix of ice restart name (input) 23 cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) 24 cn_icerst_indir = "." ! directory to read input ice restarts 25 cn_icerst_outdir = "." ! directory to write output ice restarts 26 ln_limthd = .true. ! ice thermo (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 27 ln_limdyn = .true. ! ice dynamics (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 28 nn_limdyn = 2 ! (ln_limdyn=T) switch for ice dynamics 29 ! 2: total 30 ! 1: advection only (no diffusion, no ridging/rafting) 31 ! 0: advection only (as 1 but with prescribed velocity, bypass rheology) 32 rn_uice = 0.00001 ! (nn_limdyn=0) ice u-velocity 33 rn_vice = -0.00001 ! (nn_limdyn=0) ice v-velocity 34 / 35 !------------------------------------------------------------------------------ 36 &namicediag ! Diagnostics 37 !------------------------------------------------------------------------------ 38 ln_limdiachk = .false. ! check online the heat, mass & salt budgets (T) or not (F) 39 ln_limdiahsb = .false. ! output the heat, mass & salt budgets (T) or not (F) 40 ln_limctl = .false. ! ice points output for debug (T or F) 41 iiceprt = 10 ! i-index for debug 42 jiceprt = 10 ! j-index for debug 43 / 44 !------------------------------------------------------------------------------ 45 &namiceini ! Ice initialization 46 !------------------------------------------------------------------------------ 47 ! -- limistate -- ! 48 ln_limini = .true. ! activate ice initialization (T) or not (F) 49 ln_limini_file = .false. ! netcdf file provided for initialization (T) or not (F) 50 rn_thres_sst = 2.0 ! maximum water temperature with initial ice (degC) 51 rn_hts_ini_n = 0.3 ! initial real snow thickness (m), North 52 rn_hts_ini_s = 0.3 ! " " South 53 rn_hti_ini_n = 3.0 ! initial real ice thickness (m), North 54 rn_hti_ini_s = 1.0 ! " " South 55 rn_ati_ini_n = 0.9 ! initial ice concentration (-), North 56 rn_ati_ini_s = 0.9 ! " " South 57 rn_smi_ini_n = 6.3 ! initial ice salinity (g/kg), North 58 rn_smi_ini_s = 6.3 ! " " South 59 rn_tmi_ini_n = 270. ! initial ice/snw temperature (K), North 60 rn_tmi_ini_s = 270. ! " " South 61 / 62 !------------------------------------------------------------------------------ 63 &namiceitd ! Ice discretization 64 !------------------------------------------------------------------------------ 65 nn_catbnd = 2 ! computation of ice category boundaries based on 66 ! 1: tanh function 67 ! 2: h^(-alpha), function of rn_himean 68 rn_himean = 2.0 ! expected domain-average ice thickness (m), nn_catbnd = 2 only 69 / 70 !------------------------------------------------------------------------------ 71 &namicedyn ! Ice dynamics and transport 72 !------------------------------------------------------------------------------ 73 ! -- limtrp & limadv -- ! 74 nn_limadv = 0 ! choose the advection scheme (-1=Prather ; 0=Ultimate-Macho) 75 nn_limadv_ord = 5 ! choose the order of the advection scheme (if nn_limadv=0) 76 ! -- limitd_me -- ! 77 nn_icestr = 0 ! ice strength parameteriztaion 78 ! 0: Hibler_79 P = pstar*<h>*exp(-c_rhg*A) 79 ! 1: Rothrock_75 P = Cf*coeff*integral(wr.h^2) 80 rn_pe_rdg = 17.0 ! (nn_icestr=1) ridging work divided by pot. energy change in ridging 81 rn_pstar = 2.0e+04 ! (nn_icestr=0) ice strength thickness parameter (N/m2) 82 rn_crhg = 20.0 ! (nn_icestr=0) ice strength conc. parameter (-) 83 ln_icestr_bvf = .false. ! ice strength function brine volume (T) or not (F) 84 ! 85 ! -- limdyn & limrhg -- ! 86 rn_cio = 5.0e-03 ! ice-ocean drag coefficient (-) 87 rn_creepl = 1.0e-12 ! creep limit (s-1) 88 rn_ecc = 2.0 ! eccentricity of the elliptical yield curve 89 nn_nevp = 120 ! number of EVP subcycles 90 rn_relast = 0.333 ! ratio of elastic timescale to ice time step: Telast = dt_ice * rn_relast 91 ! advised value: 1/3 (rn_nevp=120) or 1/9 (rn_nevp=300) 92 ln_landfast = .false. ! landfast ice parameterization (T or F) 93 rn_gamma = 0.15 ! (ln_landfast=T) fraction of ocean depth that ice must reach to initiate landfast 94 ! recommended range: [0.1 ; 0.25] 95 rn_icebfr = 10. ! (ln_landfast=T) maximum bottom stress per unit area of contact (N/m2) 96 ! a very large value ensures ice velocity=0 even with a small contact area 97 ! recommended range: ?? (should be greater than atm-ice stress => >0.1 N/m2) 98 rn_lfrelax = 1.e-5 ! (ln_landfast=T) relaxation time scale to reach static friction (s-1) 99 / 100 !------------------------------------------------------------------------------ 101 &namicehdf ! Ice horizontal diffusion 102 !------------------------------------------------------------------------------ 103 ! -- limhdf -- ! 104 nn_ahi0 = -1 ! horizontal diffusivity computation 105 ! -1: no diffusion (bypass limhdf) 106 ! 0: use rn_ahi0_ref 107 ! 1: use rn_ahi0_ref x mean grid cell length / ( 2deg mean grid cell length ) 108 ! 2: use rn_ahi0_ref x grid cell length / ( 2deg mean grid cell length ) 109 rn_ahi0_ref = 350.0 ! horizontal sea ice diffusivity (m2/s) 110 ! if nn_ahi0 > 0, rn_ahi0_ref is the reference value at a nominal 2 deg resolution 111 / 112 !------------------------------------------------------------------------------ 113 &namicethd ! Ice thermodynamics 114 !------------------------------------------------------------------------------ 115 ! -- limthd_dif -- ! 116 rn_kappa_i = 1.0 ! radiation attenuation coefficient in sea ice (m-1) 117 nn_conv_dif = 50 ! maximal number of iterations for heat diffusion computation 118 rn_terr_dif = 1.0e-04 ! maximum temperature after heat diffusion (degC) 119 nn_ice_thcon = 1 ! sea ice thermal conductivity 120 ! 0: k = k0 + beta.S/T (Untersteiner, 1964) 121 ! 1: k = k0 + beta1.S/T - beta2.T (Pringle et al., 2007) 122 ln_it_qnsice = .true. ! iterate the surface non-solar flux with surface temperature (T) or not (F) 123 nn_monocat = 0 ! virtual ITD mono-category parameterizations (1, jpl = 1 only) or not (0) 124 ! 2: simple piling instead of ridging --- temporary option 125 ! 3: activate G(he) only --- temporary option 126 ! 4: activate extra lateral melting only --- temporary option 127 rn_cdsn = 0.31 ! thermal conductivity of the snow (0.31 W/m/K, Maykut and Untersteiner, 1971) 128 ! Obs: 0.1-0.5 (Lecomte et al, JAMES 2013) 129 ! -- limthd_dh -- ! 130 ln_limdH = .true. ! activate ice thickness change from growing/melting (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 131 rn_betas = 0.66 ! exponent in lead-ice repratition of snow precipitation 132 ! betas = 1 -> equipartition, betas < 1 -> more on leads 133 ! -- limthd_da -- ! 134 ln_limdA = .true. ! activate lateral melting param. (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 135 rn_beta = 1.0 ! (ln_latmelt=T) coef. beta for lateral melting param. Recommended range=[0.8-1.2] 136 ! => decrease = more melt and melt peaks toward higher concentration (A~0.5 for beta=1 ; A~0.8 for beta=0.2) 137 ! 0.3 = best fit for western Fram Strait and Antarctica 138 ! 1.4 = best fit for eastern Fram Strait 139 rn_dmin = 8. ! (ln_latmelt=T) minimum floe diameter for lateral melting param. Recommended range=[6-10] 140 ! => 6 vs 8m = +40% melting at the peak (A~0.5) 141 ! 10 vs 8m = -20% melting 142 ! -- limthd_lac -- ! 143 ln_limdO = .true. ! activate ice growth in open-water (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 144 rn_hnewice = 0.1 ! thickness for new ice formation in open water (m) 145 ln_frazil = .false. ! Frazil ice parameterization (ice collection as a function of wind) 146 rn_maxfrazb = 1.0 ! (ln_frazil=T) maximum fraction of frazil ice collecting at the ice base 147 rn_vfrazb = 0.417 ! (ln_frazil=T) thresold drift speed for frazil ice collecting at the ice bottom (m/s) 148 rn_Cfrazb = 5.0 ! (ln_frazil=T) squeezing coefficient for frazil ice collecting at the ice bottom 149 ! -- limitd_th -- ! 150 rn_himin = 0.1 ! minimum ice thickness (m) used in remapping, must be smaller than rn_hnewice 151 / 152 !------------------------------------------------------------------------------ 153 &namicesal ! Ice salinity 154 !------------------------------------------------------------------------------ 155 ! -- limthd_sal -- ! 156 ln_limdS = .true. ! activate gravity drainage and flushing (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 157 nn_icesal = 2 ! ice salinity option 158 ! 1: constant ice salinity (S=rn_icesal) 159 ! 2: varying salinity parameterization S(z,t) 160 ! 3: prescribed salinity profile S(z), Schwarzacher, 1959 161 rn_icesal = 4. ! (nn_icesal=1) ice salinity (g/kg) 162 rn_sal_gd = 5. ! restoring ice salinity, gravity drainage (g/kg) 163 rn_time_gd = 1.73e+6 ! restoring time scale, gravity drainage (s) 164 rn_sal_fl = 2. ! restoring ice salinity, flushing (g/kg) 165 rn_time_fl = 8.64e+5 ! restoring time scale, flushing (s) 166 rn_simax = 20. ! maximum tolerated ice salinity (g/kg) 167 rn_simin = 0.1 ! minimum tolerated ice salinity (g/kg) 168 / 169 !------------------------------------------------------------------------------ 170 &namiceitdme ! Ice mechanical redistribution (ridging and rafting) 171 !------------------------------------------------------------------------------ 172 ! -- limitd_me -- ! 173 rn_cs = 0.5 ! fraction of shearing energy contributing to ridging 174 nn_partfun = 1 ! type of ridging participation function 175 ! 0: linear (Thorndike et al, 1975) 176 ! 1: exponential (Lipscomb, 2007) 177 rn_gstar = 0.15 ! (nn_partfun = 0) fractional area of thin ice being ridged 178 rn_astar = 0.03 ! (nn_partfun = 1) exponential measure of ridging ice fraction [set to 0.05 if hstar=100] 179 ln_ridging = .true. ! ridging activated (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 180 rn_hstar = 25.0 ! (ln_ridging = T) determines the maximum thickness of ridged ice (m) (Hibler, 1980) 181 rn_por_rdg = 0.3 ! (ln_ridging = T) porosity of newly ridged ice (Lepparanta et al., 1995) 182 rn_fsnowrdg = 0.5 ! (ln_ridging = T) snow volume fraction that survives in ridging 183 ln_rafting = .true. ! rafting activated (T) or not (F) => DO NOT TOUCH UNLESS U KNOW WHAT U DO 184 rn_hraft = 0.75 ! (ln_rafting = T) threshold thickness for rafting (m) 185 rn_craft = 5.0 ! (ln_rafting = T) squeezing coefficient used in the rafting function 186 rn_fsnowrft = 0.5 ! (ln_rafting = T) snow volume fraction that survives in rafting 187 / 22 &nampar ! Generic parameters 23 !------------------------------------------------------------------------------ 24 jpl = 5 ! number of ice categories 25 nlay_i = 2 ! number of ice layers 26 nlay_s = 1 ! number of snow layers (only 1 is working) 27 nn_monocat = 0 ! virtual ITD mono-category parameterizations (1-4 => jpl = 1 only) or not (0) 28 ! 2: simple piling instead of ridging --- temporary option 29 ! 3: activate G(he) only --- temporary option 30 ! 4: activate extra lateral melting only --- temporary option 31 ln_icedyn = .true. ! ice dynamics (T) or not (F) 32 ln_icethd = .true. ! ice thermo (T) or not (F) 33 rn_amax_n = 0.997 ! maximum tolerated ice concentration NH 34 rn_amax_s = 0.997 ! maximum tolerated ice concentration SH 35 cn_icerst_in = "restart_ice" ! suffix of ice restart name (input) 36 cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) 37 cn_icerst_indir = "." ! directory to read input ice restarts 38 cn_icerst_outdir = "." ! directory to write output ice restarts 39 / 40 !------------------------------------------------------------------------------ 41 &namitd ! Ice discretization 42 !------------------------------------------------------------------------------ 43 ln_cat_hfn = .true. ! ice categories are defined by a function following rn_himean**(-0.05) 44 rn_himean = 2.0 ! expected domain-average ice thickness (m) 45 ln_cat_usr = .false. ! ice categories are defined by rn_catbnd below (m) 46 rn_catbnd = 0.,0.45,1.1,2.1,3.7,6.0 47 rn_himin = 0.1 ! minimum ice thickness (m) used in remapping 48 / 49 !------------------------------------------------------------------------------ 50 &namdyn ! Ice dynamics 51 !------------------------------------------------------------------------------ 52 ln_dynFULL = .true. ! dyn.: full ice dynamics (rheology + advection + ridging/rafting + correction) 53 ln_dynRHGADV = .false. ! dyn.: no ridge/raft & no corrections (rheology + advection) 54 ln_dynADV = .false. ! dyn.: only advection w prescribed vel.(rn_uvice + advection) 55 rn_uice = 0.00001 ! prescribed ice u-velocity 56 rn_vice = 0. ! prescribed ice v-velocity 57 rn_ishlat = 2. ! free slip (0) ; partial slip (0-2) ; no slip (2) ; strong slip (>2) 58 ln_landfast = .false. ! landfast ice parameterization (T or F) 59 rn_gamma = 0.15 ! fraction of ocean depth that ice must reach to initiate landfast 60 ! recommended range: [0.1 ; 0.25] 61 rn_icebfr = 10. ! maximum bottom stress per unit area of contact [N/m2] 62 ! a very large value ensures ice velocity=0 even with a small contact area 63 ! recommended range: ?? (should be greater than atm-ice stress => >0.1 N/m2) 64 rn_lfrelax = 1.e-5 ! relaxation time scale to reach static friction [s-1] 65 / 66 !------------------------------------------------------------------------------ 67 &namdyn_rdgrft ! Ice ridging/rafting 68 !------------------------------------------------------------------------------ 69 ! -- ice_rdgrft_strength -- ! 70 ln_str_H79 = .true. ! ice strength param.: Hibler_79 => P = pstar*<h>*exp(-c_rhg*A) 71 rn_pstar = 2.0e+04 ! ice strength thickness parameter [N/m2] 72 rn_crhg = 20.0 ! ice strength conc. parameter (-) 73 ! -- ice_rdgrft -- ! 74 rn_csrdg = 0.5 ! fraction of shearing energy contributing to ridging 75 ! -- ice_rdgrft_prep -- ! 76 ln_partf_lin = .false. ! Linear ridging participation function (Thorndike et al, 1975) 77 rn_gstar = 0.15 ! fractional area of thin ice being ridged 78 ln_partf_exp = .true. ! Exponential ridging participation function (Lipscomb, 2007) 79 rn_astar = 0.03 ! exponential measure of ridging ice fraction [set to 0.05 if hstar=100] 80 ln_ridging = .true. ! ridging activated (T) or not (F) 81 rn_hstar = 25.0 ! determines the maximum thickness of ridged ice [m] (Hibler, 1980) 82 rn_porordg = 0.3 ! porosity of newly ridged ice (Lepparanta et al., 1995) 83 rn_fsnwrdg = 0.5 ! snow volume fraction that survives in ridging 84 rn_fpndrdg = 1.0 ! pond fraction that survives in ridging (small a priori) 85 ln_rafting = .true. ! rafting activated (T) or not (F) 86 rn_hraft = 0.75 ! threshold thickness for rafting [m] 87 rn_craft = 5.0 ! squeezing coefficient used in the rafting function 88 rn_fsnwrft = 0.5 ! snow volume fraction that survives in rafting 89 rn_fpndrft = 1.0 ! pond fraction that survives in rafting (0.5 a priori) 90 / 91 !------------------------------------------------------------------------------ 92 &namdyn_rhg ! Ice rheology 93 !------------------------------------------------------------------------------ 94 ln_rhg_EVP = .true. ! EVP rheology 95 ln_aEVP = .false. ! adaptive rheology (Kimmritz et al. 2016 & 2017) 96 rn_creepl = 2.0e-9 ! creep limit [1/s] 97 rn_ecc = 2.0 ! eccentricity of the elliptical yield curve 98 nn_nevp = 120 ! number of EVP subcycles 99 rn_relast = 0.333 ! ratio of elastic timescale to ice time step: Telast = dt_ice * rn_relast 100 ! advised value: 1/3 (rn_nevp=120) or 1/9 (rn_nevp=300) 101 / 102 !------------------------------------------------------------------------------ 103 &namdyn_adv ! Ice advection 104 !------------------------------------------------------------------------------ 105 ln_adv_Pra = .false. ! Advection scheme (Prather) 106 ln_adv_UMx = .true. ! Advection scheme (Ultimate-Macho) 107 nn_UMx = 5 ! order of the scheme for UMx (1-5 ; 20=centered 2nd order) 108 / 109 !------------------------------------------------------------------------------ 110 &namforcing ! Ice surface forcing 111 !------------------------------------------------------------------------------ 112 rn_cio = 5.0e-03 ! ice-ocean drag coefficient (-) 113 rn_blow_s = 0.66 ! mesure of snow blowing into the leads 114 ! = 1 => no snow blowing, < 1 => some snow blowing 115 nn_iceflx = -1 ! Redistribute heat flux over ice categories 116 ! =-1 Do nothing (needs N(cat) fluxes) 117 ! ==> forced mode only 118 ! = 0 Average N(cat) fluxes then apply the average over the N(cat) ice 119 ! ==> forced and coupled modes 120 ! = 1 Average N(cat) fluxes then redistribute over the N(cat) ice using T-ice and albedo sensitivity 121 ! ==> forced mode only 122 ! = 2 Redistribute a single flux over categories 123 ! ==> coupled mode only 124 nice_jules = 0 ! Jules coupling (0=OFF, 1=EMULATED, 2=ACTIVE) 125 / 126 !------------------------------------------------------------------------------ 127 &namthd ! Ice thermodynamics 128 !------------------------------------------------------------------------------ 129 ln_icedH = .true. ! activate ice thickness change from growing/melting (T) or not (F) 130 ln_icedA = .true. ! activate lateral melting param. (T) or not (F) 131 ln_icedO = .true. ! activate ice growth in open-water (T) or not (F) 132 ln_icedS = .true. ! activate brine drainage (T) or not (F) 133 / 134 !------------------------------------------------------------------------------ 135 &namthd_zdf ! Ice heat diffusion 136 !------------------------------------------------------------------------------ 137 ln_zdf_BL99 = .true. ! Heat diffusion follows Bitz and Lipscomb 1999 138 ln_cndi_U64 = .false. ! sea ice thermal conductivity: k = k0 + beta.S/T (Untersteiner, 1964) 139 ln_cndi_P07 = .true. ! sea ice thermal conductivity: k = k0 + beta1.S/T - beta2.T (Pringle et al., 2007) 140 rn_cnd_s = 0.31 ! thermal conductivity of the snow (0.31 W/m/K, Maykut and Untersteiner, 1971) 141 ! Obs: 0.1-0.5 (Lecomte et al, JAMES 2013) 142 rn_kappa_i = 1.0 ! radiation attenuation coefficient in sea ice [1/m] 143 / 144 !------------------------------------------------------------------------------ 145 &namthd_da ! Ice lateral melting 146 !------------------------------------------------------------------------------ 147 rn_beta = 1.0 ! coef. beta for lateral melting param. Recommended range=[0.8-1.2] 148 ! => decrease = more melt and melt peaks toward higher concentration (A~0.5 for beta=1 ; A~0.8 for beta=0.2) 149 ! 0.3 = best fit for western Fram Strait and Antarctica 150 ! 1.4 = best fit for eastern Fram Strait 151 rn_dmin = 8. ! minimum floe diameter for lateral melting param. Recommended range=[6-10] 152 ! => 6 vs 8m = +40% melting at the peak (A~0.5) 153 ! 10 vs 8m = -20% melting 154 / 155 !------------------------------------------------------------------------------ 156 &namthd_do ! Ice growth in open water 157 !------------------------------------------------------------------------------ 158 rn_hinew = 0.1 ! thickness for new ice formation in open water (m), must be larger than rn_hnewice 159 ln_frazil = .false. ! Frazil ice parameterization (ice collection as a function of wind) 160 rn_maxfraz = 1.0 ! maximum fraction of frazil ice collecting at the ice base 161 rn_vfraz = 0.417 ! thresold drift speed for frazil ice collecting at the ice bottom (m/s) 162 rn_Cfraz = 5.0 ! squeezing coefficient for frazil ice collecting at the ice bottom 163 / 164 !------------------------------------------------------------------------------ 165 &namthd_sal ! Ice salinity 166 !------------------------------------------------------------------------------ 167 nn_icesal = 2 ! ice salinity option 168 ! 1: constant ice salinity (S=rn_icesal) 169 ! 2: varying salinity parameterization S(z,t) 170 ! 3: prescribed salinity profile S(z), Schwarzacher, 1959 171 rn_icesal = 4. ! (nn_icesal=1) ice salinity (g/kg) 172 rn_sal_gd = 5. ! restoring ice salinity, gravity drainage (g/kg) 173 rn_time_gd = 1.73e+6 ! restoring time scale, gravity drainage (s) 174 rn_sal_fl = 2. ! restoring ice salinity, flushing (g/kg) 175 rn_time_fl = 8.64e+5 ! restoring time scale, flushing (s) 176 rn_simax = 20. ! maximum tolerated ice salinity (g/kg) 177 rn_simin = 0.1 ! minimum tolerated ice salinity (g/kg) 178 / 179 !------------------------------------------------------------------------------ 180 &namthd_pnd ! Melt ponds 181 !------------------------------------------------------------------------------ 182 ln_pnd_H12 = .false. ! activate evolutive melt ponds (from Holland et al 2012) 183 ln_pnd_fwb = .false. ! melt ponds store freshwater or not 184 ln_pnd_CST = .false. ! activate constant melt ponds 185 rn_apnd = 0.2 ! prescribed pond fraction, at Tsu=0 186 rn_hpnd = 0.05 ! prescribed pond depth, at Tsu=0 187 ln_pnd_alb = .false. ! melt ponds affect albedo or not 188 / 189 !------------------------------------------------------------------------------ 190 &namini ! Ice initialization 191 !------------------------------------------------------------------------------ 192 ln_iceini = .true. ! activate ice initialization (T) or not (F) 193 ln_iceini_file = .false. ! netcdf file provided for initialization (T) or not (F) 194 rn_thres_sst = 2.0 ! max delta temp. above Tfreeze with initial ice = (sst - tfreeze) 195 rn_hts_ini_n = 0.3 ! initial real snow thickness (m), North 196 rn_hts_ini_s = 0.3 ! " " South 197 rn_hti_ini_n = 3.0 ! initial real ice thickness (m), North 198 rn_hti_ini_s = 1.0 ! " " South 199 rn_ati_ini_n = 0.9 ! initial ice concentration (-), North 200 rn_ati_ini_s = 0.9 ! " " South 201 rn_smi_ini_n = 6.3 ! initial ice salinity (g/kg), North 202 rn_smi_ini_s = 6.3 ! " " South 203 rn_tmi_ini_n = 270. ! initial ice/snw temperature (K), North 204 rn_tmi_ini_s = 270. ! " " South 205 206 sn_hti = 'Ice_initialization' , -12 ,'hti' , .false. , .true., 'yearly' , '' , '', '' 207 sn_hts = 'Ice_initialization' , -12 ,'hts' , .false. , .true., 'yearly' , '' , '', '' 208 sn_ati = 'Ice_initialization' , -12 ,'ati' , .false. , .true., 'yearly' , '' , '', '' 209 sn_tsu = 'Ice_initialization' , -12 ,'tsu' , .false. , .true., 'yearly' , '' , '', '' 210 sn_tmi = 'Ice_initialization' , -12 ,'tmi' , .false. , .true., 'yearly' , '' , '', '' 211 sn_smi = 'Ice_initialization' , -12 ,'smi' , .false. , .true., 'yearly' , '' , '', '' 212 cn_dir='./' 213 / 214 !------------------------------------------------------------------------------ 215 &namalb ! albedo parameters 216 !------------------------------------------------------------------------------ 217 ! ! ! obs range (cloud-sky) 218 rn_alb_sdry = 0.85 ! dry snow albedo : 0.85 -- 0.87 219 rn_alb_smlt = 0.75 ! melting snow albedo : 0.72 -- 0.82 220 rn_alb_idry = 0.60 ! dry ice albedo : 0.54 -- 0.65 221 rn_alb_imlt = 0.50 ! bare puddled ice albedo : 0.49 -- 0.58 222 rn_alb_dpnd = 0.27 ! ponded ice albedo : 0.10 -- 0.30 223 / 224 !------------------------------------------------------------------------------ 225 &namdia ! Diagnostics 226 !------------------------------------------------------------------------------ 227 ln_icediachk = .false. ! check online the heat, mass & salt budgets (T) or not (F) 228 ln_icediahsb = .false. ! output the heat, mass & salt budgets (T) or not (F) 229 ln_icectl = .false. ! ice points output for debug (T or F) 230 iiceprt = 10 ! i-index for debug 231 jiceprt = 10 ! j-index for debug 232 /
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