source:
NEMO/branches/2020/dev_r13723_KERNEL-01_Amy_Mike_newHPGschemes/doc/namelists/namdyn_rdgrft
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1 | !------------------------------------------------------------------------------ |
2 | &namdyn_rdgrft ! Ice ridging/rafting |
3 | !------------------------------------------------------------------------------ |
4 | ! -- ice_rdgrft_strength -- ! |
5 | ln_str_H79 = .true. ! ice strength param.: Hibler_79 => P = pstar*<h>*exp(-c_rhg*A) |
6 | rn_pstar = 2.0e+04 ! ice strength thickness parameter [N/m2] |
7 | rn_crhg = 20.0 ! ice strength conc. parameter (-) |
8 | ! -- ice_rdgrft -- ! |
9 | rn_csrdg = 0.5 ! fraction of shearing energy contributing to ridging |
10 | ! -- ice_rdgrft_prep -- ! |
11 | ln_partf_lin = .false. ! Linear ridging participation function (Thorndike et al, 1975) |
12 | rn_gstar = 0.15 ! fractional area of thin ice being ridged |
13 | ln_partf_exp = .true. ! Exponential ridging participation function (Lipscomb, 2007) |
14 | rn_astar = 0.03 ! exponential measure of ridging ice fraction [set to 0.05 if hstar=100] |
15 | ln_ridging = .true. ! ridging activated (T) or not (F) |
16 | rn_hstar = 25.0 ! determines the maximum thickness of ridged ice [m] (Hibler, 1980) |
17 | rn_porordg = 0.3 ! porosity of newly ridged ice (Lepparanta et al., 1995) |
18 | rn_fsnwrdg = 0.5 ! snow volume fraction that survives in ridging |
19 | rn_fpndrdg = 1.0 ! pond fraction that survives in ridging (small a priori) |
20 | ln_rafting = .true. ! rafting activated (T) or not (F) |
21 | rn_hraft = 0.75 ! threshold thickness for rafting [m] |
22 | rn_craft = 5.0 ! squeezing coefficient used in the rafting function |
23 | rn_fsnwrft = 0.5 ! snow volume fraction that survives in rafting |
24 | rn_fpndrft = 1.0 ! pond fraction that survives in rafting (0.5 a priori) |
25 | / |
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