source:
branches/UKMO/v3_6_extra_CMIP6_diagnostics/DOC/Namelists/namdyn_ldf
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7492
Last change on this file since 7492 was 4147, checked in by cetlod, 11 years ago | |
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1 | !----------------------------------------------------------------------- |
2 | &namdyn_ldf ! lateral diffusion on momentum |
3 | !----------------------------------------------------------------------- |
4 | ! ! Type of the operator : |
5 | ln_dynldf_lap = .true. ! laplacian operator |
6 | ln_dynldf_bilap = .false. ! bilaplacian operator |
7 | ! ! Direction of action : |
8 | ln_dynldf_level = .false. ! iso-level |
9 | ln_dynldf_hor = .true. ! horizontal (geopotential) (require "key_ldfslp" in s-coord.) |
10 | ln_dynldf_iso = .false. ! iso-neutral (require "key_ldfslp") |
11 | ! ! Coefficient |
12 | rn_ahm_0_lap = 40000. ! horizontal laplacian eddy viscosity [m2/s] |
13 | rn_ahmb_0 = 0. ! background eddy viscosity for ldf_iso [m2/s] |
14 | rn_ahm_0_blp = 0. ! horizontal bilaplacian eddy viscosity [m4/s] |
15 | rn_cmsmag_1 = 3. ! constant in laplacian Smagorinsky viscosity |
16 | rn_cmsmag_2 = 3 ! constant in bilaplacian Smagorinsky viscosity |
17 | rn_cmsh = 1. ! 1 or 0 , if 0 -use only shear for Smagorinsky viscosity |
18 | rn_ahm_m_blp = -1.e12 ! upper limit for bilap abs(ahm) < min( dx^4/128rdt, rn_ahm_m_blp) |
19 | rn_ahm_m_lap = 40000. ! upper limit for lap ahm < min(dx^2/16rdt, rn_ahm_m_lap) |
20 | / |
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