\begin{table}%t1
%\centering
\small
\caption{%
%
Parameters of the lower boundary condition, i.e.\ for the
strong network patch and the 200 surrounding smaller internetwork
flux concentrations (see \sect{LBC}).
%
$\phi_i$ denotes the magnetic flux carried by each individual patch,
$A$ is the horizontal extent of the bottom boundary.
%
\label{in_conf}}
%
\begin{tabular}{l@{~}l@{}cc} \hline\hline
                           && Network	         
                            & Internetwork 
\\ \hline
\multicolumn{2}{l@{}}{size of magnetic patches}\\
{\it FWHM} & [km]              & 169                
                               &  96      \\[0.8ex]
%
\multicolumn{2}{l@{}}{flux of magnetic patches}\\
$|\phi_i|$ & [Mx]              & $3\times10^{18}$  
                               & $10^{15} \ldots 8\times10^{17}$  \\[0.8ex]
%
\multicolumn{2}{l@{}}{unsigned total flux}\\
$\sum|\phi_i|$ & [Mx]          & $3\times10^{18}$ 
                               & $2\times10^{17} \ldots 1.6\times10^{20}$  \\[0.8ex]
%
\multicolumn{2}{l@{}}{unsigned mean flux density}\\
$\sum|\phi_i|/A$ & [Mx/cm$^2$] & 1.5 & $0.1 \ldots 80$  \\[0.8ex]
%
\multicolumn{2}{l@{}}{net flux} \\
$\sum \phi_i$ & [Mx]           & $3\times10^{18}$ & 0 \\[0.8ex]
\par
% \hline%\cline{2-3}
% overall net-flux &\multicolumn{2}{c}{}\\
% density [Mx/cm$^2$] & \multicolumn{2}{c}{1.5}\\ [0.8ex]
\hline
\end{tabular}
\end{table}