/[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 1.4 by jmc,
Mon Aug 30 23:09:22 2010 UTC
 Line 11 
 Authors: Martin Losch, Jean-Michel Campi
  %----------------------------------------------------------------------
  \subsubsection{Introduction
- \label{sec:pkg:exf:intro}}
+ \label{sec:pkg:shelfice:intro}}
  Package ``shelfice'' provides a thermodynamic model for basal melting
 Line 26 
 A description of key subroutines is give
  \ref{sec:pkg:shelfice:subroutines}.
  Input fields, units and sign conventions are summarized in
  Section \ref{sec:pkg:shelfice:fields_units}, and available diagnostics
- output is listed in Section \ref{sec:pkg:shelfice:fields_diagnostics}.
+ output is listed in Section \ref{sec:pkg:shelfice:diagnostics}.
  %----------------------------------------------------------------------
 Line 56 
 schemes, be aware, that non-local parame
  off, e.g.\ for KPP (\ref{sec:pkg:kpp}).
  %
  \end{itemize}
- (see Section \ref{sect:buildingCode}).
+ (see Section \ref{sec:buildingCode}).
  Parts of the SHELFICE code can be enabled or disabled at compile time
  via CPP preprocessor flags. These options are set
  \code{SHELFICE\_OPTIONS.h}.
  Table \ref{tab:pkg:shelfice:cpp} summarizes these options.
- \begin{table}[h!]
+ \begin{table}[!ht]
  \centering
    \label{tab:pkg:shelfice:cpp}
    {\footnotesize
 Line 100 
 A package is switched on/off at run-time
  ~ \\
  %
  Table~\ref{tab:pkg:shelfice:runtimeparms} lists all run-time parameters.
- \begin{table}[h!]
+ \begin{table}[!ht]
    \caption{Run-time parameters and default values
      \label{tab:pkg:shelfice:runtimeparms}}
    {\footnotesize
 Line 129 
 Table~\ref{tab:pkg:shelfice:runtimeparms
        &  %---ref---
        \\
        SHELFICEtopoFile         & UNSET
-       &   under-ice topography of ice shelfes
+       &   under-ice topography of ice shelves
        &  %---ref---
        \\
        SHELFICElatentHeat       &  334.0E+03
 Line 199 
 Table~\ref{tab:pkg:shelfice:runtimeparms
  }
  \end{table}
+ \paragraph{Input fields and units\label{sec:pkg:shelfice:fields_units}}
+ \begin{description}
+ \item[\code{SHEFLICEtopoFile}:] under-ice topography of ice shelves in
+   meters; upwards is positive, that as for the bathymetry files,
+   negative values are required for topography below the sea-level;
+ \item[\code{SHEFLICEloadAnomalyFile}:] pressure load anomaly at the bottom of
+   the ice shelves in pressure units (Pa); this field is absolutely
+   required to avoid large excursions of the free surface during
+   initial adjustment processes; obtained by integrating an approximate
+   density from the surface at $z=0$ down to the bottom of the last
+   fully dry cell within the ice shelf, see
+   Eq.~(\ref{eq:surfacepressure}); however, the file
+   \code{SHEFLICEloadAnomalyFile} must not be $p_{top}$, but
+   $p_{top}-g\sum_{k'=1}^{n-1}\rho_{0}\Delta{z}_{k'}$, with
+   $\rho_{0}=$~\code{rhoConst}, so that in the absenses of a $\rho^{*}$
+   that is different from $\rho_{0}$, the anomaly is zero.
+ \end{description}
  %----------------------------------------------------------------------
  \subsubsection{Description
-Line 535 
 Diagnostics output is available via the
+Line 552 
 Diagnostics output is available via the
  Available output fields are summarized in
  Table \ref{tab:pkg:shelfice:diagnostics}.
- \begin{table}[h!]
+ \begin{table}[!ht]
  \centering
  \label{tab:pkg:shelfice:diagnostics}
  {\footnotesize

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