# Changeset 3267 for branches/2011/dev_NEMO_MERGE_2011/DOC/TexFiles/Chapters/Chap_TRA.tex

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Timestamp:
2012-01-18T11:28:11+01:00 (9 years ago)
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dev_NEMO_MERGE_2011:(DOC) Finish griffies description, remove need for pstricks

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 r3221 \label{TRA_ldf_iso} The general form of the second order lateral tracer subgrid scale physics If the Griffies trad scheme is not employed (\np{ln\_traldf\_grif}=true; see App.\ref{sec:triad}) the general form of the second order lateral tracer subgrid scale physics (\ref{Eq_PE_zdf}) takes the following semi-discrete space form in $z$- and $s$-coordinates: (see \S\ref{LDF}) allows the model to run safely without any additional background horizontal diffusion \citep{Guilyardi_al_CD01}. An alternative scheme developed by \cite{Griffies_al_JPO98} which preserves both tracer and its variance developed by \cite{Griffies_al_JPO98} which ensures tracer variance decreases is also available in \NEMO (\np{ln\_traldf\_grif}=true). A complete description of the algorithm is given in App.\ref{Apdx_Griffies}. the algorithm is given in App.\ref{sec:triad}. Note that in the partial step $z$-coordinate (\np{ln\_zps}=true), the horizontal