This test compares against laboratory experiments for a one-dimensional wave on a piecewise linear topography with a vertical wall (not clear why it's called a "beach" on the PMEL page). Summarized at the
benchmark site: http://nctr.pmel.noaa.gov/benchmark/Solitary_wave/
Original Army Corps laboratory data: http://chl.erdc.usace.army.mil/chl.aspx?p=s&a=Projects;36
This is still under development.
Challenges: