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!-----------------------------------------------------------------------
&namdyn_ldf ! lateral diffusion on momentum (default: NO selection)
!-----------------------------------------------------------------------
! ! Type of the operator :
ln_dynldf_OFF = .false. ! No operator (i.e. no explicit diffusion)
nn_dynldf_typ = 0 ! =0 div-rot (default) ; =1 symmetric
ln_dynldf_lap = .false. ! laplacian operator
ln_dynldf_blp = .false. ! bilaplacian operator
! ! Direction of action :
ln_dynldf_lev = .false. ! iso-level
ln_dynldf_hor = .false. ! horizontal (geopotential)
ln_dynldf_iso = .false. ! iso-neutral (lap only)
! ! Coefficient
nn_ahm_ijk_t = 0 ! space/time variation of eddy coefficient :
! ! =-30 read in eddy_viscosity_3D.nc file
! ! =-20 read in eddy_viscosity_2D.nc file
! ! = 0 constant
! ! = 10 F(k)=c1d
! ! = 20 F(i,j)=F(grid spacing)=c2d
! ! = 30 F(i,j,k)=c2d*c1d
! ! = 31 F(i,j,k)=F(grid spacing and local velocity)
! ! = 32 F(i,j,k)=F(local gridscale and deformation rate)
! ! time invariant coefficients : ahm = 1/2 Uv*Lv (lap case)
! ! or = 1/12 Uv*Lv^3 (blp case)
rn_Uv = 0.1 ! lateral viscous velocity [m/s] (nn_ahm_ijk_t= 0, 10, 20, 30)
rn_Lv = 10.e+3 ! lateral viscous length [m] (nn_ahm_ijk_t= 0, 10)
! ! Smagorinsky settings (nn_ahm_ijk_t= 32) :
rn_csmc = 3.5 ! Smagorinsky constant of proportionality
rn_minfac = 1.0 ! multiplier of theorectical lower limit
rn_maxfac = 1.0 ! multiplier of theorectical upper limit
! ! iso-neutral laplacian operator (ln_dynldf_iso=T) :
rn_ahm_b = 0.0 ! background eddy viscosity [m2/s]
/