\begin{table}%t1
\par
\caption{\label{tab-models-s}Table of parameters of single vertical slice
models (the \mbox{S-series}). First column: model name, second column: Brownian
motion, third column: differential settling ("rain effect''), fourth column:
turbulent mixing, fifth column: turbulence-driven coagulation and sixth
column: porosity (Compact, Particle-Cluster-Aggregate or
Cluster-Cluster-Aggregate).}
%\centering
\par
\begin{tabular}{c|ccccc}
\hline\hline
   & Brownian & DiffSett & TurbMix & TurbCoag & Poros \\
\hline
S1  & $\surd$ &         &         &         & Comp \\
S2  & $\surd$ & $\surd$ &         &         & Comp \\
S3  & $\surd$ & $\surd$ & $\surd$ &         & Comp \\
S4  & $\surd$ & $\surd$ & $\surd$ & $\surd$ & Comp \\
S5  & $\surd$ & $\surd$ &         &         & PCA \\
S6  & $\surd$ & $\surd$ &         &         & CCA \\
\hline
\end{tabular} 
\end{table}