Changeset 5965 for branches/2014/dev_r4650_UKMO14.5_SST_BIAS_CORRECTION/NEMOGCM/CONFIG/SHARED/namelist_ice_lim3_ref
- Timestamp:
- 2015-12-01T16:35:30+01:00 (8 years ago)
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branches/2014/dev_r4650_UKMO14.5_SST_BIAS_CORRECTION/NEMOGCM/CONFIG/SHARED/namelist_ice_lim3_ref
r4205 r5965 1 1 !!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 2 !! NEMO/LIM3 : 1 - dynamics/advection/thermo (namicerun) 3 !! namelists 2 - ice intialisation (namiceini) 4 !! 3 - ice dynamic (namicedyn) 5 !! 4 - ice advection (namicetrp) 6 !! 5 - thermodynamic (namicethd) 7 !! 6 - ice salinity (namicesal) 8 !! 7 - mechanical redistribution of ice (namiceitdme) 9 !! 8 - ice diagnostics (namicedia) 10 !! 9 - ice outputs (namiceout) 2 !! LIM3 namelist : 3 !! 1 - Generic parameters (namicerun) 4 !! 2 - Ice initialization (namiceini) 5 !! 3 - Ice discretization (namiceitd) 6 !! 4 - Ice dynamics and transport (namicedyn) 7 !! 5 - Ice thermodynamics (namicethd) 8 !! 6 - Ice salinity (namicesal) 9 !! 7 - Ice mechanical redistribution (namiceitdme) 11 10 !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 12 13 !----------------------------------------------------------------------- 14 &namicerun ! Share parameters for dynamics/advection/thermo 15 !----------------------------------------------------------------------- 11 ! 12 !------------------------------------------------------------------------------ 13 &namicerun ! Generic parameters 14 !------------------------------------------------------------------------------ 15 jpl = 5 ! number of ice categories 16 nlay_i = 2 ! number of ice layers 17 nlay_s = 1 ! number of snow layers (only 1 is working) 16 18 cn_icerst_in = "restart_ice" ! suffix of ice restart name (input) 17 cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) 18 ln_limdyn = .true. ! ice dynamics (T) or thermodynamics only (F) 19 amax = 0.999 ! maximum ice concentration 20 cai = 1.40e-3 ! atmospheric drag over sea ice 21 cao = 1.00e-3 ! atmospheric drag over ocean 22 ln_nicep = .false. ! Ice points output for debug (yes or no) 23 ln_limdiahsb = .false. ! check the heat and salt budgets (T) or not (F) 24 ln_limdiaout = .false. ! output the heat and salt budgets (T) or not (F) 19 cn_icerst_indir = "." ! directory from which to read input ice restarts 20 cn_icerst_out = "restart_ice" ! suffix of ice restart name (output) 21 cn_icerst_outdir = "." ! directory in which to write output ice restarts 22 ln_limdyn = .true. ! ice dynamics (T) or thermodynamics only (F) 23 rn_amax = 0.999 ! maximum tolerated ice concentration 24 ln_limdiahsb = .false. ! check the heat and salt budgets (T) or not (F) 25 ln_limdiaout = .true. ! output the heat and salt budgets (T) or not (F) 26 ln_icectl = .false. ! ice points output for debug (T or F) 27 iiceprt = 10 ! i-index for debug 28 jiceprt = 10 ! j-index for debug 25 29 / 26 !----------------------------------------------------------------------- 27 &namiceini ! ice initialisation 28 !----------------------------------------------------------------------- 29 ttest = 2.0 ! threshold water temperature for initial sea ice 30 hninn = 0.3 ! initial snow thickness in the north 31 hnins = 0.1 ! " " south 32 hginn = 3.50 ! initial undeformed ice thickness in the north 33 hgins = 1.0 ! " " " south 34 aginn = 0.95 ! initial undeformed ice concentration in the north 35 agins = 0.9 ! " " " south 36 sinn = 6.301 ! initial salinity in the north 37 sins = 6.301 ! " " south 30 !------------------------------------------------------------------------------ 31 &namiceini ! Ice initialization 32 !------------------------------------------------------------------------------ 33 ln_iceini = .true. ! activate ice initialization (T) or not (F) 34 rn_thres_sst = 2.0 ! maximum water temperature with initial ice (degC) 35 rn_hts_ini_n = 0.3 ! initial real snow thickness (m), North 36 rn_hts_ini_s = 0.3 ! " " South 37 rn_hti_ini_n = 3.0 ! initial real ice thickness (m), North 38 rn_hti_ini_s = 1.0 ! " " South 39 rn_ati_ini_n = 0.9 ! initial ice concentration (-), North 40 rn_ati_ini_s = 0.9 ! " " South 41 rn_smi_ini_n = 6.3 ! initial ice salinity (g/kg), North 42 rn_smi_ini_s = 6.3 ! " " South 43 rn_tmi_ini_n = 270. ! initial ice/snw temperature (K), North 44 rn_tmi_ini_s = 270. ! " " South 38 45 / 39 !----------------------------------------------------------------------- 40 &namicedyn ! ice dynamic 41 !----------------------------------------------------------------------- 42 epsd = 1.0e-20 ! tolerance parameter 43 alpha = 0.5 ! coefficient for semi-implicit coriolis 44 dm = 0.6e+03 ! diffusion constant for dynamics 45 nbiter = 1 ! number of sub-time steps for relaxation 46 nbitdr = 500 ! maximum number of iterations for relaxation 47 om = 0.5 ! relaxation constant 48 resl = 5.0e-05 ! maximum value for the residual of relaxation 49 cw = 5.0e-03 ! drag coefficient for oceanic stress 50 angvg = 0.0 ! turning angle for oceanic stress 51 pstar = 2.0e+04 ! 1st bulk-rheology parameter 52 c_rhg = 20.0 ! 2nd bulk-rhelogy parameter 53 etamn = 0.0e+07 ! minimun value for viscosity 54 creepl = 1.0e-12 ! creep limit 55 ecc = 2.0 ! eccentricity of the elliptical yield curve 56 ahi0 = 350.e0 ! horizontal eddy diffusivity coefficient for sea-ice [m2/s] 57 nevp = 300 ! number of iterations for subcycling in EVP, SB, 400 58 telast =9600.0 ! timescale for elastic waves, SB, 720.0 59 alphaevp = 1.0 ! coefficient for the solution of internal ice stresses 60 hminrhg = 0.001 ! ice volume (a*h in m) below which ice velocity equal ocean velocity 46 !------------------------------------------------------------------------------ 47 &namiceitd ! Ice discretization 48 !------------------------------------------------------------------------------ 49 nn_catbnd = 2 ! computation of ice category boundaries based on 50 ! 1: tanh function 51 ! 2: h^(-alpha), function of rn_himean 52 rn_himean = 2.0 ! expected domain-average ice thickness (m), nn_catbnd = 2 only 61 53 / 62 !----------------------------------------------------------------------- 63 &namicetrp ! ice transport 64 !----------------------------------------------------------------------- 65 bound = 0. ! boundary conditions (=0.0 no-slip, =1.0 free-slip) 54 !------------------------------------------------------------------------------ 55 &namicedyn ! Ice dynamics and transport 56 !------------------------------------------------------------------------------ 57 nn_icestr = 0 ! ice strength parameteriztaion 58 ! 0: Hibler_79 P = pstar*<h>*exp(-c_rhg*A) 59 ! 1: Rothrock_75 P = Cf*coeff*integral(wr.h^2) 60 ln_icestr_bvf = .false. ! ice strength function brine volume (T) or not (F) 61 rn_pe_rdg = 17.0 ! ridging work divided by pot. energy change in ridging, if nn_icestr = 1 62 rn_pstar = 2.0e+04 ! ice strength thickness parameter (N/m2), nn_icestr = 0 63 rn_crhg = 20.0 ! ice strength conc. parameter (-), nn_icestr = 0 64 rn_cio = 5.0e-03 ! ice-ocean drag coefficient (-) 65 rn_creepl = 1.0e-12 ! creep limit (s-1) 66 rn_ecc = 2.0 ! eccentricity of the elliptical yield curve 67 nn_nevp = 120 ! number of EVP subcycles 68 rn_relast = 0.333 ! ratio of elastic timescale to ice time step: Telast = dt_ice * rn_relast 69 ! advised value: 1/3 (rn_nevp=120) or 1/9 (rn_nevp=300) 70 nn_ahi0 = 2 ! horizontal diffusivity computation 71 ! 0: use rn_ahi0_ref 72 ! 1: use rn_ahi0_ref x mean grid cell length / ( 2deg mean grid cell length ) 73 ! 2: use rn_ahi0_ref x grid cell length / ( 2deg mean grid cell length ) 74 rn_ahi0_ref = 350.0 ! horizontal sea ice diffusivity (m2/s) 75 ! if nn_ahi0 > 0, rn_ahi0_ref is the reference value at a nominal 2 deg resolution 66 76 / 67 !----------------------------------------------------------------------- 68 &namicethd ! ice thermodynamic 69 !----------------------------------------------------------------------- 70 hmelt = -0.15 ! maximum melting at the bottom 71 hiccrit = 0.1 , 0.1 ! ice thickness for lateral accretion in the Northern (Southern) Hemisphere 72 ! caution 1.0, 1.0 best value to be used!!! (gilles G.) ???? 73 fraz_swi = 0.0 ! use of frazil ice collection thickness in function of wind (1.0) or not (0.0) 74 maxfrazb = 0.0 ! maximum portion of frazil ice collecting at the ice bottom 75 vfrazb = 0.4166667 ! thresold drift speed for frazil ice collecting at the ice bottom 76 Cfrazb = 5.0 ! squeezing coefficient for frazil ice collecting at the ice bottom 77 hicmin = 0.2 ! ice thickness corr. to max. energy stored in brine pocket 78 hiclim = 0.10 ! minimum ice thickness 79 sbeta = 1. ! numerical caracteritic of the scheme for diffusion in ice 80 ! Cranck-Nicholson (=0.5), implicit (=1), explicit (=0) 81 parlat = 0.0 ! percentage of energy used for lateral ablation 82 hakspl = 0.25 ! slope of distr. for Hakkinen-Mellor's lateral melting 83 hibspl = 0.5 ! slope of distribution for Hibler's lateral melting 84 exld = 2.0 ! exponent for leads-closure rate 85 hakdif = 1.0 ! coefficient for diffusions of ice and snow 86 thth = 0.2 ! threshold thickness for comp. of eq. thermal conductivity 87 hnzst = 0.1 ! thickness of the surf. layer in temp. computation 88 parsub = 1.0 ! switch for snow sublimation or not 89 alphs = 1.0 ! coefficient for snow density when snow ice formation 90 betas = 0.6 ! exponent in lead-ice fractionation of snow precipitation 0.66 91 ! betas = 1 -> equipartition, betas < 1 -> more on leads 92 kappa_i = 1.0 ! extinction radiation parameter in sea ice (1.0) 93 nconv_i_thd = 50 ! maximal number of iterations for heat diffusion computation 94 maxer_i_thd = 0.0001 ! maximal error in temperature for heat diffusion computation 95 thcon_i_swi = 1 ! switch for computation of thermal conductivity in the ice 96 ! (0) Untersteiner (1964), (1) Pringle et al. (2007) 77 !------------------------------------------------------------------------------ 78 &namicehdf ! Ice horizontal diffusion 79 !------------------------------------------------------------------------------ 80 nn_convfrq = 5 ! convergence check frequency of the Crant-Nicholson scheme (perf. optimization) 97 81 / 98 !----------------------------------------------------------------------- 99 &namicesal ! ice salinity 100 !----------------------------------------------------------------------- 101 num_sal = 2 ! salinity option: 1 -> S = bulk_sal 102 ! 2 -> S = S(z,t) with a simple parameterization 103 ! 3 -> S = S(z) profile of Scwharzacher [1959] 104 ! 4 -> S = S(h) Cox and Weeks [1974] 105 bulk_sal = 4.0 ! if 1 is used, it represents the ice salinity 106 sal_G = 5.00 ! restoring salinity for GD 107 time_G = 1.728e+6 ! restoring time for GD 108 sal_F = 2.00 ! restoring salinity for flushing 109 time_F = 8.640e+5 ! restoring time for flushing 110 s_i_max = 20.0 ! Maximum salinity 111 s_i_min = 0.1 ! Minimum tolerated ice salinity 112 s_i_0 = 3.5 ! 1st salinity for salinity profile 113 s_i_1 = 4.5 ! 2nd salinity for salinity profile 82 !------------------------------------------------------------------------------ 83 &namicethd ! Ice thermodynamics 84 !------------------------------------------------------------------------------ 85 rn_hnewice = 0.1 ! thickness for new ice formation in open water (m) 86 ln_frazil = .false. ! use frazil ice collection thickness as a function of wind (T) or not (F) 87 rn_maxfrazb = 0.0 ! maximum fraction of frazil ice collecting at the ice base 88 rn_vfrazb = 0.417 ! thresold drift speed for frazil ice collecting at the ice bottom (m/s) 89 rn_Cfrazb = 5.0 ! squeezing coefficient for frazil ice collecting at the ice bottom 90 rn_himin = 0.10 ! minimum ice thickness (m) used in remapping, must be smaller than rn_hnewice 91 rn_betas = 0.66 ! exponent in lead-ice repratition of snow precipitation 92 ! betas = 1 -> equipartition, betas < 1 -> more on leads 93 rn_kappa_i = 1.0 ! radiation attenuation coefficient in sea ice (m-1) 94 nn_conv_dif = 50 ! maximal number of iterations for heat diffusion computation 95 rn_terr_dif = 0.0001 ! maximum temperature after heat diffusion (degC) 96 nn_ice_thcon= 1 ! sea ice thermal conductivity 97 ! 0: k = k0 + beta.S/T (Untersteiner, 1964) 98 ! 1: k = k0 + beta1.S/T - beta2.T (Pringle et al., 2007) 99 nn_monocat = 0 ! virtual ITD mono-category parameterizations (1, jpl = 1 only) or not (0) 100 ! 2: simple piling instead of ridging --- temporary option 101 ! 3: activate G(he) only --- temporary option 102 ! 4: activate lateral melting only --- temporary option 103 ln_it_qnsice = .true. ! iterate the surface non-solar flux with surface temperature (T) or not (F) 114 104 / 115 !----------------------------------------------------------------------- 116 &namiceitdme ! parameters for mechanical redistribution of ice 117 !----------------------------------------------------------------------- 118 ridge_scheme_swi = 0 ! which ridging scheme using (1=Rothrock,else=Hibler79) 119 Cs = 0.50 ! shearing energy contribution to ridging 120 Cf = 17.0 ! ratio of ridging work to PE change in ridging 121 fsnowrdg = 0.5 ! snow fraction that survives in ridging 122 fsnowrft = 0.5 ! snow fraction that survives in rafting 123 Gstar = 0.15 ! fractional area of thin ice being ridged 124 astar = 0.05 ! equivalent of gstar (0.05 for TH75 and 0.03 for weaker ice) 125 Hstar = 100.0 ! parameter determining the maximum thickness of ridged ice 126 raftswi = 1 ! rafting or not 127 hparmeter = 0.75 ! threshold thickness for rafting or not 128 Craft = 5.0 ! coefficient used in the rafting function 129 ridge_por = 0.3 ! initial porosity of the ridged ice (typically 0.30) 130 sal_max_ridge = 15.0 ! maximum ridged ice salinity 131 partfun_swi = 1 ! participation function linear, TH75 (0) or exponential Letal07 (1) 132 transfun_swi = 0 ! transfer function uniform of H80 (0) or exponential Letal07 (1) 133 brinstren_swi = 0 ! (1) use brine volume to diminish ice strength 105 !------------------------------------------------------------------------------ 106 &namicesal ! Ice salinity 107 !------------------------------------------------------------------------------ 108 nn_icesal = 2 ! ice salinity option 109 ! 1: constant ice salinity (S=rn_icesal) 110 ! 2: varying salinity parameterization S(z,t) 111 ! 3: prescribed salinity profile S(z), Schwarzacher, 1959 112 rn_icesal = 4. ! ice salinity (g/kg, nn_icesal = 1 only) 113 rn_sal_gd = 5. ! restoring ice salinity, gravity drainage (g/kg) 114 rn_time_gd = 1.73e+6 ! restoring time scale, gravity drainage (s) 115 rn_sal_fl = 2. ! restoring ice salinity, flushing (g/kg) 116 rn_time_fl = 8.64e+5 ! restoring time scale, flushing (s) 117 rn_simax = 20. ! maximum tolerated ice salinity (g/kg) 118 rn_simin = 0.1 ! minimum tolerated ice salinity (g/kg) 134 119 / 135 !----------------------------------------------------------------------- 136 &namicedia ! ice diagnostics 137 !----------------------------------------------------------------------- 138 fmtinf ='1PE13.5 ' ! format of the output values 139 nfrinf = 4 ! number of variables written in one line 140 ntmoy = 1 ! instantaneous values of ice evolution or averaging 141 ninfo = 1 ! frequency of ouputs on file ice_evolu in case of averaging 120 !------------------------------------------------------------------------------ 121 &namiceitdme ! Ice mechanical redistribution (ridging and rafting) 122 !------------------------------------------------------------------------------ 123 rn_Cs = 0.5 ! fraction of shearing energy contributing to ridging 124 rn_fsnowrdg = 0.5 ! snow volume fraction that survives in ridging 125 rn_fsnowrft = 0.5 ! snow volume fraction that survives in rafting 126 nn_partfun = 1 ! type of ridging participation function 127 ! 0: linear (Thorndike et al, 1975) 128 ! 1: exponential (Lipscomb, 2007 129 rn_gstar = 0.15 ! fractional area of thin ice being ridged (nn_partfun = 0) 130 rn_astar = 0.05 ! exponential measure of ridging ice fraction (nn_partfun = 1) 131 rn_hstar = 100.0 ! determines the maximum thickness of ridged ice (m) (Hibler, 1980) 132 ln_rafting = .true. ! rafting activated (T) or not (F) 133 rn_hraft = 0.75 ! threshold thickness for rafting (m) 134 rn_craft = 5.0 ! squeezing coefficient used in the rafting function 135 rn_por_rdg = 0.3 ! porosity of newly ridged ice (Lepparanta et al., 1995) 142 136 / 143 !!-----------------------------------------------------------------------144 !&namicehsb ! Heat and salt budgets145 !!-----------------------------------------------------------------------146 !147 !/148 !-----------------------------------------------------------------------149 &namiceout ! parameters for outputs150 !-----------------------------------------------------------------------151 noumef = 43 ! number of fields152 add_diag_swi= 1 ! 1 -> diagnose distribution in thickness space153 ! 0 -> only simple diagnostics154 !155 ! ! title of the field ! name ! units ! save ! multipl. ! additive !156 ! ! ! ! ! or not ! factor ! factor !157 field_1 = 'Ice concentration ', 'iiceconc', '% ', 1 , 1.0 , 0.0158 field_2 = 'Ice thickness ', 'iicethic', 'm ', 1 , 1.0 , 0.0159 field_3 = 'Snow thickness ', 'isnowthi', 'm ', 1 , 1.0 , 0.0160 field_4 = 'Daily bottom thermo ice production ', 'iicebopr', 'km3/day ', 1 , 1.0e-9 , 0.0161 field_5 = 'Daily dynamic ice production ', 'iicedypr', 'km3/day ', 1 , 1.0e-9 , 0.0162 field_6 = 'Oceanic flux at the ice base ', 'ioceflxb', 'w/m2 ', 1 , 1.0 , 0.0163 field_7 = 'Ice velocity u ', 'iicevelu', 'm/s ', 1 , 1.0 , 0.0164 field_8 = 'Ice velocity v ', 'iicevelv', 'm/s ', 1 , 1.0 , 0.0165 field_9 = 'Sea surface temperature ', 'isstempe', 'C ', 1 , 1.0 , -273.15166 field_10 = 'Sea surface salinity ', 'isssalin', 'PSU ', 1 , 1.0 , 0.0167 field_11 = 'Total flux at ocean surface ', 'iocetflx', 'w/m2 ', 1 , 1.0 , 0.0168 field_12 = 'Solar flux at ocean surface ', 'iocesflx', 'w/m2 ', 1 , 1.0 , 0.0169 field_13 = 'Non-solar flux at ocean surface ', 'iocwnsfl', 'w/m2 ', 1 , 1.0 , 0.0170 field_14 = 'Heat flux due to brine release ', 'iocehebr', 'w/m2 ', 1 , 1.0 , 0.0171 field_15 = 'Wind stress u ', 'iocestru', 'Pa ', 1 , 1.0 , 0.0172 field_16 = 'Wind stress v ', 'iocestrv', 'Pa ', 1 , 1.0 , 0.0173 field_17 = 'Solar flux at ice/ocean surface ', 'iicesflx', 'w/m2 ', 1 , 1.0 , 0.0174 field_18 = 'Non-solar flux at ice/ocean surface', 'iicenflx', 'w/m2 ', 1 , 1.0 , 0.0175 field_19 = 'Snow precipitation ', 'isnowpre', 'kg/m2/d ', 1 , 1.0 , 0.0176 field_20 = 'Mean ice salinity ', 'iicesali', 'psu ', 1 , 1.0 , 0.0177 field_21 = 'Mean ice age ', 'iiceages', 'years ', 1 , 0.002739, 0.0178 field_22 = 'Daily lateral thermo ice prod. ', 'iicelapr', 'km3/day ', 1 ,1.0e-9 , 0.0179 field_23 = 'Daily snowice ice production ', 'iicesipr', 'km3/day ', 1 ,1.0e-9 , 0.0180 field_24 = 'Mean ice temperature ', 'iicetemp', 'C ', 1 , 1.0 , -273.15181 field_25 = 'Ice total heat content ', 'iiceheco', '10^9 J ', 1 , 1.0 , 0.0182 field_26 = 'Ice surface temperature ', 'iicesurt', 'C ', 1 , 1.0 , -273.15183 field_27 = 'Snow temperature ', 'isnotem2', 'C ', 1 , 1.0 , -273.15184 field_28 = 'Fsbri - brine salt flux ', 'iicefsbr', 'kg/m2/d ', 1 , 1.0 , 0.0185 field_29 = 'Fseqv - equivalent FW salt flux ', 'iicefseq', 'kg/m2/d ', 1 , 1.0 , 0.0186 field_30 = 'Brine volume ', 'ibrinvol', '% ', 1 , 100.0 , 0.0187 field_31 = 'Frazil ice collection thickness ', 'iicecolf', 'm ', 1 , 1.0 , 0.0188 field_32 = 'Ice strength ', 'iicestre', 'N/m ', 1 , 0.001 , 0.0189 field_33 = 'Ice velocity ', 'iicevelo', 'm/s ', 1 , 1.0 , 0.0190 field_34 = 'Surface melt ', 'iicesume', 'km3/day ', 1 ,1.0e-9 , 0.0191 field_35 = 'Bottom melt ', 'iicebome', 'km3/day ', 1 ,1.0e-9 , 0.0192 field_36 = 'Divergence ', 'iicedive', '10-8s-1 ', 1 , 1.0e8 , 0.0193 field_37 = 'Shear ', 'iiceshea', '10-8s-1 ', 1 , 1.0e8 , 0.0194 field_38 = 'Daily resultant ice prod/melt ', 'iicerepr', 'km3/day ', 1 , 1.0e-9 , 0.0195 field_39 = 'Ice volume ', 'iicevolu', 'km3 ', 1 , 1.0e-9 , 0.0196 field_40 = 'Snow volume ', 'isnowvol', 'km3 ', 1 , 1.0e-9 , 0.0197 field_41 = 'Fsrpo - salt flux from ridg/raft ', 'iicefsrp', 'kg/m2/d ', 1 , 1.0 , 0.0198 field_42 = 'Fsres - salt flux from limupdate ', 'iicefsre', 'kg/m2/d ', 1 , 1.0 , 0.0199 field_43 = 'Ice volume transport ', 'iicevtrp', 'km3/day ', 1 ,1.0e-9 , 0.0200 /201
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