<%namespace name="tools" file="tools.tex"/>
<%! import os %>

\textbf{Experiment desciption}\newline
The laboratory data set was obtained during the GLOBEX project \citep{ruessink2013globex}. The experiments were performed in the Scheldegoot in Delft, The Netherlands, in April 2012. The flume is 110 m long, 1 m wide and 1.2 m high and has a piston-type wave maker equipped with an Active Reflection Compensation (ARC) to absorb waves coming from the flume and hence prevent their re-reflection from the wave maker. A fixed, mild-sloping (1:80) concrete beach was constructed over almost the entire length of the flume (with a fixed sandy upper layer), except for the first 16.6 m that were horizontal and where the mean water level was 0.85 m (Fig.~\ref{fig:Flume}). At the cross-shore position $x$ = 16.6 m ($x$ = 0 m is the wave-maker position at rest), the sloping bed started and intersected with the mean water level at $x$ $\approx$ 84.6 m. The profile, and the conditions were on a 1:20 scale with respect to prototype. As detailed in \citet{ruessink2013globex}, the experimental program comprised 8 wave conditions. Here we will focus on the 3 irregular-wave cases: an intermediate energy sea-wave condition ($A1$; $H_s$ = 0.1 m, $T_p$ = 1.58 s), a high-energy sea-wave condition ($A2$; $H_s$ = 0.2 m, $T_p$ = 2.25 s), and a narrow-banded swell condition ($A3$; $H_s$ = 0.1 m, $T_p$ = 2.25 s). All wave-paddle steering signals included second-order wave generation, and were based on a JONSWAP spectrum with a peak enhancement factor $\gamma$ of 3.3 for $A1$ and $A2$, and 20 for $A3$. Each condition had a duration of 75 minutes with 21 wave gauges and 5 flow meters sampling at 128 Hz, followed by a rest period of about 15 minutes. After all wave conditions were completed, most instruments were repositioned and the conditions were repeated with the same wave paddle signal. Altogether, the conditions were each repeated 10 times, resulting in a total of 190 positions with water level ($\eta$) data and 43 positions with cross-shore flow-velocity ($u$) data, with an instrument spacing varying from 2.2 m offshore, to 0.55 m in the middle section and 0.37 m inshore, see Figure~\ref{fig:Flume}. See \citet{ruessink2013globex} for further details and initial data processing.


${tools.image(os.path.join(data_path,'GLOBEX'), 'GLOBEX_PT_locations.jpg', 'Elevation $z$ versus cross-shore distance $x$ in the Scheldegoot during the GLOBEX project. Here, $x$ = 0 is the location of the wave-maker at rest, and $z$ = 0 corresponds to the still water level. At $x$ = 84.6 m the still water level intersected with the bed. The 190 dots are the positions of the wave gauges.',label='Flume',width=150)}




\textbf{Results}\newline
The comparison between the model and the observations for the wave height transformation of the short waves, the infragravity waves and the setup is shown in \autoref{fig:GLOBEXA1}, \autoref{fig:GLOBEXA2} and \autoref{fig:GLOBEXA3}.

${tools.image('GLOBEX/', 'overviewA1.png', 'Wave hydrodynamics during experiment A1. The observed short-wave height (dots) and observed infragravity wave height (triangles) are compared to the XBeach results (blue and red line) in the upper panel. The observed setup (dots) is compared to the setup computed with XBeach (blue line) in the second panel and the bathymetry is shown in the third panel.',label='GLOBEXA1')}

${tools.image('GLOBEX/', 'overviewA2.png', 'Wave hydrodynamics during experiment A2. The observed short-wave height (dots) and observed infragravity wave height (triangles) are compared to the XBeach results (blue and red line) in the upper panel. The observed setup (dots) is compared to the setup computed with XBeach (blue line) in the second panel and the bathymetry is shown in the third panel.',label='GLOBEXA2')}

${tools.image('GLOBEX/', 'overviewA3.png', 'Wave hydrodynamics during experiment A3. The observed short-wave height (dots) and observed infragravity wave height (triangles) are compared to the XBeach results (blue and red line) in the upper panel. The observed setup (dots) is compared to the setup computed with XBeach (blue line) in the second panel and the bathymetry is shown in the third panel.',label='GLOBEXA3')}

% if interpret:

These result show that XBeach correctly simulates the shoaling of both short and infragravity wave heights.

% endif

\textbf{Overview}\newline
An overview of the statistical scores is shown in \autoref{fig:GLOBEX_overview} and \autoref{tab:GLOBEX} , where the relative bias and scatter index of the short-wave height, infragravity wave height and setup are shown for the different GLOBEX experiments.

${tools.image('GLOBEX/', 'overview.png', 'Overview of the statistical scores of the GLOBEX experiments. The relative error and scatter index for the short-wave height (upper panel), infragravity wave height (second panel) and setup (third panel) are shown for the different GLOBEX experiments.',label='GLOBEX_overview')}

${tools.table('GLOBEX/', 'skill.tex', 'Statistical scores for GLOBEX experiments', 'GLOBEX')} 