<%namespace name="tools" file="tools.tex"/>
\textbf{Experiment description }\newline
\citet{VanGent2008} and \citet{VanThielDeVries2008} describe large-scale laboratory experiments that have been performed to study the influence of the wave period on the dune erosion process. They concluded that not only short waves, but also (wave group generated) long waves are important in the dune erosion process. Initially, about 30\% of the dune erosion is due to long-wave energy, but this amount increases throughout the storm, with the development of an erosion profile. Moreover, an increase of the wave period was seen to increase the resulting dune erosion volumes.

These experiments have been performed in the Deltaflume of Delft Hydraulics, currently known as Deltares, using the reference profile for the Holland coast on a scale of 1:6. This is a schematized profile that is considered representative for the Holland coast. Furthermore, a significant wave height 1.50 m (corresponding to 9 m on proto-type scale) and a water depth of 4.50 m is used. The test programme is given in \autoref{tab:experiments_Deltaflume2006}. During Test T01, T02 and T03 a single dune has been tested, whereas during test T08, the storm impact on a profile with a double dune row was analysed.

\begin{table}[H]
  \caption{Overview of experiments}
  \label{tab:experiments_Deltaflume2006}
  \begin{center}
    \begin{tabular}{llll}
      \hline
      Experiment & $T_p$ & $T_{m-1,0}$ & Spectrum          \\ 
      \hline
      T01        & 4.90  & 4.45        & Pierson-Moskowitz \\ 
      T02        & 6.12  & 5.56        & Pierson-Moskowitz \\ 
      T03        & 7.35  & 6.68        & Pierson-Moskowitz \\ 
      T08        & 7.35  & 6.68        & Pierson-Moskowitz \\ 
      \hline
    \end{tabular}
  \end{center}
\end{table}
