
\def\V{{\bf v}}
\def\ave#1{\overline{#1}}
\def\mave#1{\tilde{#1}}
\def\q{c}

\begin{frame}
 \frametitle{Boundary layer and transport of atmospheric tracers}

{\footnotesize

\begin{columns}
\column{0.3\textwidth}

{\bf 
Dust transport from Sahara over the Atlantic Ocean}
 as simulated with Chimere-Dust transport model (Menut et al.)

\vspace{0.6\textwidth}

{{\bf Dust lifting\\
in west Africa}}

\column{0.85\textwidth}

\centerline{
\includegraphics[width=0.25\textwidth]{/home/hourdin/PRESENTATIONS/IMAGES/PBL/PDF/WestAfrica-A2006067.pdf}
\includegraphics[width=0.75\textwidth]{/home/hourdin/PRESENTATIONS/IMAGES/PBL/PDF/aotm_2006030812.pdf}
}

\centerline{
\includegraphics[width=0.5\textwidth]{/home/hourdin/PRESENTATIONS/IMAGES/PBL/PDF/dustdevil.pdf}
\includegraphics[width=0.5\textwidth]{gcm15.pdf}}

\end{columns}

{\bf New requirement} : predict surface wind fluctuations (gusts)

}

\end{frame}
