WireWall project data generated during the flume experiments performed at HR Wallingford during July to September 2018.

The prototype WireWall measurement system was initially trialled in the controlled environment of HR Wallingford's flume facility during three 5-day periods: 9th July 2018, 20th August 2018, 17th September 2018. An additional 5-day experiment was also run to collect data to compare with BayonetGPE: 3rd September 2018. In all experiments a 1:7.5 scale model of the beach and sea wall structure at Crosby (north of Liverpool, UK) was built within the flume using a laser scan collected 11th December 2013 by the Sefton Council. The flume was 45 m long, 2 m deep and 1.2 m wide. It was equipped with a piston-type wave paddle controlled by HR Wallingford's Merlin software. Wave and water level data to simulate conditions were obtained from the Liverpool Bay WaveNet buoy and Liverpool Gladstone Dock NTSLF tide gauge. During these experiments total cumulative wave-by-wave overtopping data were measured using collection tanks and WireWall. The collection tank data were recorded using small capacitance wire probes within the tanks. For long runs (over 100 waves) numerical estimates using the BayonetGPE tool (EurOtop 2018) was also used to assess its capability at this site. The data archived represented the total volume of water that overtopped the structure during each experiment, which comprised of different wave conditions and still water levels.