<%namespace name="tools" file="tools.tex"/>
In this section, a detailed comparison between simulated physics over an evolving bathymetry and the measurements obtained during the Deltaflume experiment in 2006 \citep{VanGent2008} is made.


The observed and computed wave height transformation and the setup are shown in \autoref{fig:deltaflume2006_t01_hydro} to \autoref{fig:deltaflume2006_t03_hydro}. These wave height transformations results in a flow pattern, which affect the sediment transport rates. The comparison of the flow velocities is shown in \autoref{fig:deltaflume2006_t01_velocity} and \autoref{fig:deltaflume2006_t03_velocity}. Note that the comparison of the velocities of test T02 is not shown, because the observed velocities are not available.

${tools.image('Deltaflume2006/T01/', 'T01_hydro.eps', 'Computed and observed short wave height transformation, infragravity wave height transformation and mean water level (upper panel) for test T01. The lower panel shows the initial and final computed profiles. ', 'deltaflume2006_t01_hydro')}
${tools.image('Deltaflume2006/T02/', 'T02_hydro.eps', 'Computed and observed short wave height transformation, infragravity wave height transformation and mean water level (upper panel) for test T02. The lower panel shows the initial and final computed profiles.', 'deltaflume2006_t02_hydro')}
${tools.image('Deltaflume2006/T03/', 'T03_hydro.eps', 'Computed and observed short wave height transformation, infragravity wave height transformation and mean water level (upper panel) for test T03. The lower panel shows the initial and final computed profiles.', 'deltaflume2006_t03_hydro')}



${tools.image('Deltaflume2006/T01/', 'T01_velocity.eps', 'Computed and observed high and low frequency root-mean-squared velocity and mean velocity (upper panel) for test T01. The lower panel shows the initial and final computed profiles. ', 'deltaflume2006_t01_velocity')}
${tools.image('Deltaflume2006/T03/', 'T03_velocity.eps', 'Computed and observed high and low frequency root-mean-squared velocity and mean velocity (upper panel) for test T03. The lower panel shows the initial and final computed profiles. ', 'deltaflume2006_t03_velocity')}



XBeach does not resolves the short wave shape, but an approximation is applied to include the effects of nonlinear waves on the sediment transport rates. The wave shape which is expressed in terms of skewness, asymmetry is shown in 
\autoref{fig:deltaflume2006_t01_waveshape}, \autoref{fig:deltaflume2006_t02_waveshape} and \autoref{fig:deltaflume2006_t03_waveshape}. In general, the wave shape changes when the water depth decreases. In shallow water the waves become more asymmetrical (sawtooth shape) and more skewed (higher peaks), which is also visible in the computed and observed wave shapes.


${tools.image('Deltaflume2006/T01/', 'T01_shape.eps', 'Computed and observed wave shape as a function of the cross-shore distance (upper panel).', 'deltaflume2006_t01_waveshape')}
${tools.image('Deltaflume2006/T02/', 'T02_shape.eps', 'Computed and observed wave shape as a function of the cross-shore distance (upper panel)', 'deltaflume2006_t02_waveshape')}
${tools.image('Deltaflume2006/T03/', 'T03_shape.eps', 'Computed and observed wave shape as a function of the cross-shore distance (upper panel)', 'deltaflume2006_t03_waveshape')}

The observed and modelled sediment concentrations are shown in Figure \autoref{deltaflume2006_t01_concentration} and \autoref{deltaflume2006_t03_concentration}. The observed sediment concentrations are not available and, therefore, the results of test T02 are not shown.

${tools.image('Deltaflume2006/T01/', 'T01_concentration.eps', 'Sediment concentrations for test T01', 'deltaflume2006_t01_concentration')}
${tools.image('Deltaflume2006/T03/', 'T03_concentration.eps', 'Sediment concentrations for test T03', 'deltaflume2006_t03_concentration')}




In \autoref{fig:deltaflume2006_t01_morpho} to \autoref{fig:deltaflume2006_t03_morpho}, the observed and computed erosion and sedimentation patterns are compared. The bed level changes clearly show a erosion at the dune front and a deposition on the foreshore. The temporal plot of the erosion volumes is shown in \autoref{fig:deltaflume2006_t01_volume} to \autoref{fig:deltaflume2006_t03_volume}.

${tools.image('Deltaflume2006/T01/', 'T01_morpho.eps', 'Erosion and sedimentation patterns (upper panel) and profiles (lower panel) for test T01', 'deltaflume2006_t01_morpho')}
${tools.image('Deltaflume2006/T02/', 'T02_morpho.eps', 'Erosion and sedimentation patterns (upper panel) and profiles (lower panel) for test T02', 'deltaflume2006_t02_morpho')}
${tools.image('Deltaflume2006/T03/', 'T03_morpho.eps', 'Erosion and sedimentation patterns (upper panel) and profiles (lower panel) for test T03', 'deltaflume2006_t03_morpho')}

${tools.image('Deltaflume2006/T01/', 'T01_volumes.eps', 'Erosion volumes as a function of time for test T01', 'deltaflume2006_t01_volume')}
${tools.image('Deltaflume2006/T02/', 'T02_volumes.eps', 'Erosion volumes as a function of time for test T02', 'deltaflume2006_t02_mvolume')}
${tools.image('Deltaflume2006/T03/', 'T03_volumes.eps', 'Erosion volumes as a function of time for test T03', 'deltaflume2006_t03_volume')}





