source: branches/2015/dev_r5044_CNRS_LIM3CLEAN/NEMOGCM/CONFIG/SHARED/namelist_ice_lim3_ref @ 5046

Last change on this file since 5046 was 5046, checked in by vancop, 6 years ago

first step of namelist cleaning

File size: 6.9 KB
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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)
11!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
12
13!-----------------------------------------------------------------------
14&namicerun     !   Share parameters for dynamics/advection/thermo
15!-----------------------------------------------------------------------
16   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   ln_nicep      = .false.         !  Ice points output for debug (yes or no)
21   ln_limdiahsb  = .false.          !  check the heat and salt budgets (T) or not (F)
22   ln_limdiaout  = .true.          !  output the heat and salt budgets (T) or not (F)
23/
24!-----------------------------------------------------------------------
25&namiceini     !   ice initialisation
26!-----------------------------------------------------------------------
27   ln_limini   = .false.   !  activate ice initialization (T) or not (F)
28   thres_sst   =  0.0      !  threshold water temperature for initial sea ice
29   hts_ini_n   =  0.3      !  initial snow thickness in the north
30   hts_ini_s   =  0.3      !        "            "          south
31   hti_ini_n   =  3.0      !  initial ice thickness in the north
32   hti_ini_s   =  1.0      !        "            "         south
33   ati_ini_n   =  0.9      !  initial ice concentration in the north
34   ati_ini_s   =  0.9      !        "            "             south
35   smi_ini_n   =  6.3      !  initial ice salinity in the north
36   smi_ini_s   =  6.3      !        "            "    south
37   tmi_ini_n   =  270.     !  initial ice/snw temp in the north
38   tmi_ini_s   =  270.     !  initial ice/snw temp in the south
39/
40!-----------------------------------------------------------------------
41&namicedyn     !   ice dynamic
42!-----------------------------------------------------------------------
43   cw          =   5.0e-03 !  drag coefficient for oceanic stress
44   pstar       =   2.0e+04 !  1st bulk-rheology parameter
45   c_rhg       =  20.0     !  2nd bulk-rhelogy parameter
46   creepl      =   1.0e-12 !  creep limit
47   ecc         =   2.0     !  eccentricity of the elliptical yield curve
48   ahi0        = 350.e0    !  horizontal eddy diffusivity coefficient for sea-ice [m2/s] ! depends on resolution
49   nevp        = 120       !  number of iterations for subcycling in EVP
50   relast      = 0.333     !  ratio of elastic timescale over ice time step (1/3 if nevp=120 ; 1/9 if nevp=300)
51   hminrhg     =   0.001   !  ice volume (a*h in m) below which ice velocity equal ocean velocity
52/
53!-----------------------------------------------------------------------
54&namicethd     !   ice thermodynamic
55!-----------------------------------------------------------------------
56   hiccrit     = 0.1       !  ice thickness for lateral accretion
57                           !         caution 1.0, 1.0 best value to be used!!! (gilles G.)  ????
58   fraz_swi    = 0         !  use of frazil ice collection thickness in function of wind (1.0) or not (0.0)
59   maxfrazb    = 0.0       !  maximum portion of frazil ice collecting at the ice bottom
60   vfrazb      = 0.4166667 !  thresold drift speed for frazil ice collecting at the ice bottom
61   Cfrazb      = 5.0       !  squeezing coefficient for frazil ice collecting at the ice bottom
62   hiclim      = 0.10      !  minimum thickness of the first thickness category, must be smaller than hiccrit
63   betas       = 0.6       !  exponent in lead-ice fractionation of snow precipitation 0.66
64                           !        betas = 1 -> equipartition, betas < 1 -> more on leads
65   kappa_i     = 1.0       !  extinction radiation parameter in sea ice (1.0)
66   nconv_i_thd = 50        !  maximal number of iterations for heat diffusion computation
67   maxer_i_thd = 0.0001    !  maximal error in temperature for heat diffusion computation
68   thcon_i_swi = 1         !  switch for computation of thermal conductivity in the ice
69                           !        (0) Untersteiner (1964), (1) Pringle et al. (2007)
70/
71!-----------------------------------------------------------------------
72&namicesal     !   ice salinity
73!-----------------------------------------------------------------------
74   num_sal     =  2        !  salinity option: 1 -> S = bulk_sal
75                           !                   2 -> S = S(z,t) with a simple parameterization
76                           !                   3 -> S = S(z) profile of Scwharzacher [1959]
77                           !                   4 -> S = S(h) Cox and Weeks [1974]
78   bulk_sal    =  4.0      !  if 1 is used, it represents the ice salinity
79   sal_G       =  5.00     !  restoring salinity for GD
80   time_G      =  1.728e+6 !  restoring time for GD
81   sal_F       =  2.00     !  restoring salinity for flushing
82   time_F      =  8.640e+5 !  restoring time for flushing
83   s_i_max     = 20.0      !  Maximum salinity
84   s_i_min     =  0.1      !  Minimum tolerated ice salinity
85/
86!-----------------------------------------------------------------------
87&namiceitdme   !   parameters for mechanical redistribution of ice
88!-----------------------------------------------------------------------
89   ridge_scheme_swi = 0      !  which ridging scheme using (1=Rothrock,else=Hibler79)
90   Cs               =   0.50 !  shearing energy contribution to ridging
91   Cf               =  17.0  !  ratio of ridging work to PE change in ridging
92   fsnowrdg         =   0.5  !  snow fraction that survives in ridging
93   fsnowrft         =   0.5  !  snow fraction that survives in rafting
94   Gstar            =   0.15 !  fractional area of thin ice being ridged
95   astar            =   0.05 !  equivalent of gstar (0.05 for TH75 and 0.03 for weaker ice)
96   Hstar            = 100.0  !  parameter determining the maximum thickness of ridged ice
97   raft_swi         =   1    !  rafting or not
98   hparmeter        =   0.75 !  threshold thickness for rafting or not
99   Craft            =   5.0  !  coefficient used in the rafting function
100   ridge_por        =   0.3  !  initial porosity of the ridged ice (typically 0.30)
101   partfun_swi      =   1    !  participation function linear, TH75 (0) or exponential Letal07 (1)
102   brinstren_swi    =   0    !  (1) use brine volume to diminish ice strength
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