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namelist_ice in trunk/CONFIG/ORCA2_LIM/EXP00 – NEMO

source: trunk/CONFIG/ORCA2_LIM/EXP00/namelist_ice @ 8

Last change on this file since 8 was 8, checked in by opalod, 20 years ago

Initial revision

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 7.4 KB
Line 
1!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2!
3! ICE namelist :  ice model option and parameter input
4! -------------
5!
6!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
7!
8!'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
9!       namicerun   Share parameters for dynamics/advection/thermo
10!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
11!
12!  ldyn        : switch for ice dynamics (true) or not (false)
13!  acrit(1/2)  : minimum fraction for leads in the Northern (Southern) Hemisphere
14!  hnsdif      : computation of temperature in snow (=0.0) or not (=9999.0)
15!  hicdif      : computation of temperature in ice  (=0.0) or not (=9999.0)
16!
17&namicerun
18   ldyn    = .true.
19   acrit   = 1.0e-06 , 1.0e-06
20   hsndif  = 0.0
21   hicdif  = 0.0
22
23!'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
24!       namiceini   parameters for ice initialisation
25!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
26!
27!  ttest : threshold water temperature for initial sea ice
28!  hninn : initial snow thickness in the north
29!  hginn : initial ice thickness in the north
30!  alinn : initial leads area in the north
31!  hnins : initial snow thickness in the south
32!  hgins : initial ice thickness in the south
33!  alins : initial leads area in the south
34!
35&namiceini
36   ttest = 2.0
37   hninn = 0.5
38   hginn = 3.0
39   alinn = 0.05
40   hnins = 0.1
41   hgins = 1.0
42   alins = 0.1
43/
44!'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
45!       namicedia   parameters for ice diagnostics
46!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
47!
48!  fmtinf : format of the output values
49!  nfrinf : number of variables written in one line
50!  ntmoy  : instantaneous values of ice evolution or averaging
51!  ninfo  : frequency of ouputs on file ice_evolu in case of averaging
52!
53&namicedia
54   fmtinf = '1PE13.5 '
55   nfrinf = 4
56   ntmoy  = 1
57   ninfo  = 1
58/
59!'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
60!       namicedyn   parameters for ice dynamic
61!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
62!
63!  epsd   : tolerance parameter
64!  nlminn : northern minimum index for ice drift old value = 38
65!  nlmaxs : southern minimum index for ice drift old value = 15
66!  alpha  : coefficient for semi-implicit coriolis
67!  bound  : boundary conditions (=0.0 no-slip, =1.0 free-slip)
68!  dm     : diffusion constant for dynamics.
69!  nbiter : number of sub-time steps for relaxation
70!  nbitdr : maximum number of iterations for relaxation
71!  om     : relaxation constant
72!  resl   : maximum value for the residual of relaxation
73!  cw     : drag coefficient for oceanic stress
74!  angvg  : turning angle for oceanic stress
75!  pstar  : first bulk-rheology parameter
76!  c_rhg  : second bulk-rhelogy parameter
77!  etamn  : minimun value for viscosity
78!  creepl : creep limit
79!  ecc    : eccentricity of the elliptical yield curve
80!  ahi0   : horizontal eddy diffusivity coefficient for sea-ice (m2/s)
81!
82&namicedyn
83   epsd   = 1.0e-20
84   nlminn = 103
85   nlmaxs = 45
86   alpha  = 0.5
87   dm     = 0.6e+03
88   nbiter = 1
89   nbitdr = 100
90   om     = 0.5
91   resl   = 5.0e-05
92   cw     = 5.0e-03
93   angvg  = 0.0
94   pstar  = 1.0e+04
95   c_rhg  = 20.0
96   etamn  = 0.0e+07
97   creepl = 2.0e-08
98   ecc    = 2.0
99   ahi0   = 350.e0
100/
101!
102!'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
103!       namicetrp   parameters for ice advection
104!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
105!  bound  : boundary conditions (=0.0 no-slip, =1.0 free-slip)
106&namicetrp
107   bound  = 0.
108/
109
110!'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
111!       namicethd   parameters for thermodynamic computation
112!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
113!
114!  hmelt       : maximum melting at the bottom
115!  hiccrit(1/2): ice thickness for lateral accretion in the Northern (Southern) Hemisphere
116!                caution 1.0, 1.0 best value to be used!!! (gilles G.)
117!  hicmin      : ice thickness corr. to max. energy stored in brine pocket
118!  hiclim      : minimum ice thickness
119!  amax        : maximum lead fraction
120!  swiqst      : energy stored in brine pocket (=1) or not (=0)   
121!  sbeta       : numerical caracteritic of the scheme for diffusion in ice
122!               Cranck-Nicholson (=0.5), implicit (=1), explicit (=0)
123!  parlat      : percentage of energy used for lateral ablation
124!  hakspl      : slope of distr. for Hakkinen-Mellor's lateral melting
125!  hibspl      : slope of distribution for Hibler's lateral melting
126!  exld        : exponent for leads-closure rate
127!  hakdif      : coefficient for diffusions of ice and snow
128!  thth         : threshold thickness for comp. of eq. thermal conductivity
129!  hnzst       : thickness of the surf. layer in temp. computation
130!  parsub      : switch for snow sublimation or not
131!  alphs       : coefficient for snow density when snow ice formation
132!
133&namicethd
134   hmelt   = -0.15
135   hiccrit = 0.3 , 0.3
136   hicmin  = 0.2
137   hiclim  = 0.05
138   amax    = 0.999
139   swiqst  = 1.
140   sbeta   = 1.
141   parlat  = 0.0
142   hakspl  = 0.5
143   hibspl  = 0.5
144   exld    = 2.0
145   hakdif  = 1.0
146   thth    = 0.2
147   hnzst   = 0.1
148   parsub  = 1.0
149   alphs   = 1.0
150/
151!
152!'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
153!       namiceout   parameters for outputs
154!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
155!
156!   noumef      : number of fields
157!   field
158!        title  : title of the field
159!        name   : name of the field
160!        unit   : unit of the field
161!        nc     : switch for saving field ( = 1 ) or not ( = 0 )
162!        cmulti : multiplicative constant
163!        cadd   : additive constant
164!
165&namiceout
166   noumef   = 19
167   field_1  = 'Snow thickness                     ', 'isnowthi', 'm       ', 1, 1.0, 0.0
168   field_2  = 'Ice thickness                      ', 'iicethic', 'm       ', 1, 1.0, 0.0
169   field_3  = 'Ice produced                       ', 'iiceprod', 'm/kt    ', 1, 1.0, 0.0
170   field_4  = 'Ice concentration                  ', 'ileadfra', '%       ', 1, -1.0, 1.0
171   field_5  = 'Ice temperature                    ', 'iicetemp', 'C       ', 1, 1.0, -273.15
172   field_6  = 'Oceanic flux at the ice base       ', 'ioceflxb', 'w/m2    ', 1, 1.0, 0.0
173   field_7  = 'Ice velocity u                     ', 'iicevelu', 'm/s     ', 1, 1.0, 0.0
174   field_8  = 'Ice velocity v                     ', 'iicevelv', 'm/s     ', 1, 1.0, 0.0
175   field_9  = 'Sea surface temperature            ', 'isstempe', 'C       ', 1, 1.0, -273.15
176   field_10 = 'Sea surface salinity               ', 'isssalin', 'PSU     ', 1, 1.0, 0.0
177   field_11 = 'Total flux at ocean surface        ', 'iocetflx', 'w/m2    ', 1, 1.0, 0.0
178   field_12 = 'Solar flux at ocean surface        ', 'iocesflx', 'w/m2    ', 1, 1.0, 0.0
179   field_13 = 'Non-solar flux at ocean surface    ', 'iocwnsfl', 'w/m2    ', 1, 1.0, 0.0
180   field_14 = 'Salt flux at ocean surface         ', 'iocesafl', 'kg/m2/kt', 1, 1.0, 0.0
181   field_15 = 'Wind stress u                      ', 'iocestru', 'Pa      ', 1, 1.0, 0.0
182   field_16 = 'Wind stress v                      ', 'iocestrv', 'Pa      ', 1, 1.0, 0.0
183   field_17 = 'Solar flux at ice/ocean surface    ', 'iicesflx', 'w/m2    ', 1, 1.0, 0.0
184   field_18 = 'Non-solar flux at ice/ocean surface', 'iicenflx', 'w/m2    ', 1, 1.0, 0.0
185   field_19 = 'Snow precipitation                 ', 'isnowpre', 'kg/day  ', 1, 1.0, 0.0
186/     
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