/[MITgcm]/manual/s_phys_pkgs/text/shelfice.tex
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revision 1.2 by mlosch, Thu May 14 15:35:48 2009 UTC revision 1.3 by mlosch, Fri May 15 08:10:23 2009 UTC
# Line 26  A description of key subroutines is give Line 26  A description of key subroutines is give
26  \ref{sec:pkg:shelfice:subroutines}.  \ref{sec:pkg:shelfice:subroutines}.
27  Input fields, units and sign conventions are summarized in  Input fields, units and sign conventions are summarized in
28  Section \ref{sec:pkg:shelfice:fields_units}, and available diagnostics  Section \ref{sec:pkg:shelfice:fields_units}, and available diagnostics
29  output is listed in Section \ref{sec:pkg:shelfice:fields_diagnostics}.  output is listed in Section \ref{sec:pkg:shelfice:diagnostics}.
30    
31  %----------------------------------------------------------------------  %----------------------------------------------------------------------
32    
# Line 129  Table~\ref{tab:pkg:shelfice:runtimeparms Line 129  Table~\ref{tab:pkg:shelfice:runtimeparms
129        &  %---ref---        &  %---ref---
130        \\        \\
131        SHELFICEtopoFile         & UNSET        SHELFICEtopoFile         & UNSET
132        &   under-ice topography of ice shelfes        &   under-ice topography of ice shelves
133        &  %---ref---        &  %---ref---
134        \\        \\
135        SHELFICElatentHeat       &  334.0E+03        SHELFICElatentHeat       &  334.0E+03
# Line 199  Table~\ref{tab:pkg:shelfice:runtimeparms Line 199  Table~\ref{tab:pkg:shelfice:runtimeparms
199  }  }
200  \end{table}  \end{table}
201    
202    \paragraph{Input fields and units\label{sec:pkg:shelfice:fields_units}}
203    
204    \begin{description}
205    \item[\code{SHEFLICEtopoFile}:] under-ice topography of ice shelves in
206      meters; upwards is positive, that as for the bathymetry files,
207      negative values are required for topography below the sea-level;
208    \item[\code{SHEFLICEloadAnomalyFile}:] pressure load anomaly at the bottom of
209      the ice shelves in pressure units (Pa); this field is absolutely
210      required to avoid large excursions of the free surface during
211      initial adjustment processes; obtained by integrating an approximate
212      density from the surface at $z=0$ down to the bottom of the last
213      fully dry cell within the ice shelf, see
214      Eq.~(\ref{eq:surfacepressure}); however, the file
215      \code{SHEFLICEloadAnomalyFile} must not be $p_{top}$, but
216      $p_{top}-g\sum_{k'=1}^{n-1}\rho_{0}\Delta{z}_{k'}$, with
217      $\rho_{0}=$~\code{rhoConst}, so that in the absenses of a $\rho^{*}$
218      that is different from $\rho_{0}$, the anomaly is zero.
219    \end{description}
220    
221  %----------------------------------------------------------------------  %----------------------------------------------------------------------
222  \subsubsection{Description  \subsubsection{Description
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