/[MITgcm]/manual/s_examples/advection_in_gyre/adv_gyre.tex
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revision 1.7 by cnh, Tue Jan 15 21:47:26 2008 UTC revision 1.11 by cnh, Wed Jan 16 02:45:30 2008 UTC
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7  \section[Gyre Advection Example]{Ocean Gyre Advection Schemes}  \section[Gyre Advection Example]{Ocean Gyre Advection Schemes}
8  %%%% \label{www:tutorials}  \label{www:tutorials}
9  \label{sect:eg-adv-gyre}  \label{sect:eg-adv-gyre}
10  \begin{rawhtml}  \begin{rawhtml}
11  <!-- CMIREDIR:eg-adv-gyre: -->  <!-- CMIREDIR:eg-adv-gyre: -->
12  \end{rawhtml}  \end{rawhtml}
13    
14    Author: Oliver Jahn and Chris Hill
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18  This set of examples is based on the barotropic and baroclinic gyre MITgcm configurations,  This set of examples is based on the barotropic and baroclinic gyre MITgcm configurations,
19  that are described in the tutorial sections \ref{sect:eg-baro} and \ref{sect:eg-fourlayer}.  that are described in the tutorial sections \ref{sect:eg-baro} and \ref{sect:eg-fourlayer}.
20  The examples in this section explain how to introduce a passive tracer into the flow  The examples in this section explain how to introduce a passive tracer into the flow
# Line 61  the $-U \cdot \nabla C$ term that are av Line 65  the $-U \cdot \nabla C$ term that are av
65  \end{enumerate}  \end{enumerate}
66    
67    
68  \subsection{Introducting a tracer into the flow}  \subsection{Introducing a tracer into the flow}
69    
70   The ptracers package (see section \ref{sec:pkg:ptracers} for a more complete discussion   The MITgcm ptracers package (see section \ref{sec:pkg:ptracers} for a more complete discussion
71  of the ptracers package)  of the ptracers package and section \ref{sec:pkg:using} for a general introduction to MITgcm
72  - activating ptracers  packages) provides pre-coded support for a simple passive tracer with an initial
73  - setting initial distribution  distribution at simulation time $t=0$ of $C_0(x,y,z)$. The steps required to use this capability
74    are
75    \begin{enumerate}
76    \item{\bf Activating the ptracers package.} This simply requires adding the line {\tt ptracers} to
77    the {\tt packages.conf} file in the {\it code/} directory for the experiment.
78    \item{\bf Setting an initial tracer distribution.}
79    \end{enumerate}
80    
81    Once the two steps above are complete we can proceed to examine how the tracer we have created is
82    carried by the flow field and what properties of the tracer distribution are preserved under
83    different advection schemes.
84    
 To intro  
85  \subsection{Selecting an advection scheme}  \subsection{Selecting an advection scheme}
86    
87  - flags in data and data.ptracers  - flags in data and data.ptracers
# Line 86  To intro Line 99  To intro
99  \item{Positive definite}  \item{Positive definite}
100  \end{enumerate}  \end{enumerate}
101    
102    \subsection{Code and Parameters files for this tutorial}
103    
104    The code and parameters for the experiments can be found in the MITgcm example experiments
105    directory {\it verification/tutorial\_advection\_in\_gyre/}.
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