Changeset 996 for trunk/DOC/TexFiles/Chapters/Chap_LDF.tex
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- 2008-05-28T12:38:21+02:00 (16 years ago)
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trunk/DOC/TexFiles/Chapters/Chap_LDF.tex
r994 r996 9 9 $\ $\newline % force a new ligne 10 10 11 The lateral physics on momentum and tracer equations have been given in \S\ref{PE_zdf} and their discrete formulation in \S\ref{TRA_ldf} and \S\ref{DYN_ldf}). In this section we 12 further discuss the choices that underlie each lateral physics option. 13 Choosing one lateral physics means for the user defining, (1) the space and time variations of the eddy coefficients ; (2) the direction along which the lateral diffusive fluxes are evaluated (model level, geopotential or isopycnal surfaces); and (3) the type of operator used (harmonic, or biharmonic operators, and for tracers only, eddy induced advection on tracers). These 14 three aspects of the lateral diffusion are set through namelist parameters and CPP keys (see the nam\_traldf and nam\_dynldf below). 11 The lateral physics on momentum and tracer equations have been given in 12 \S\ref{PE_zdf} and their discrete formulation in \S\ref{TRA_ldf} and \S\ref{DYN_ldf}). 13 In this section we further discuss the choices that underlie each lateral physics option. 14 Choosing one lateral physics means for the user defining, (1) the space and time 15 variations of the eddy coefficients ; (2) the direction along which the lateral diffusive 16 fluxes are evaluated (model level, geopotential or isopycnal surfaces); and (3) the 17 type of operator used (harmonic, or biharmonic operators, and for tracers only, eddy 18 induced advection on tracers). These three aspects of the lateral diffusion are set 19 through namelist parameters and CPP keys (see the nam\_traldf and nam\_dynldf 20 below). 15 21 %-----------------------------------nam_traldf - nam_dynldf-------------------------------------------- 16 22 \namdisplay{nam_traldf}
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