...
Preliminary results are as follows. The first plot shows for each varied parameter the variation in erosion volume above SSL. The black dot indicates the default value. The red line indicates a linear fit excluding any outliers. The second plot shows the minimum and maximum erosion volumes found when varying a parameter over it's valid range of values. The plot is ordered based on the difference between the minimum and maximum value found. Some parameters show no influence at all. This might be due to the fact that a parameter is only applicable to a part of XBeach that is not enabled by default. 
Expert panel
...