\begin{table}%t1
\caption{Mean wind speeds at Dome C and other astronomical sites
for which long-term data exist.} \label{aws}
%\centering
\par
\begin{tabular}{ccc}
\hline  \hline
Site & Wind speed (m/s) & Reference \\
\hline
 Dome C (1984--1995) &  2.7 & This paper \\
 Dome C II (1996--2003) &  3.2 & This paper \\
 Dome C plus Dome CII (1984--2003) & 2.9 & This paper \\
 Maidanak & 2.1 & Ehgamberdiev et~al. (\cite{ehgamberdiev2000}) \\
 Mauna Loa  & 4.4 & Barnes (\cite{barnes2004}) \\
 La Silla & 4.6 & Hainaut (\cite{hainaut2004}) \\
 South Pole & 5.5 & Mefford (\cite{mefford2004}) \\
 La Palma & 6.6 & La~Palma (\cite{lapalma2004}) \\
 Paranal & 6.6 & Hainaut (\cite{hainaut2004}) \\
 \hline
\end{tabular}
\end{table}