Shelf Sea Oceanography and Meteorology research groupresearprojects

'The acoustic noise generated by breaking waves in surf conditions'. Funding body: Nuffield Foundation Award.


Ambient noise generated by breaking waves provides information relating to the amount of energy that is lost in the breaking process. This energy is important in coastal seas because it generates turbulence and currents, suspends sediment and transports it along the coast. This work studies ambient noise in surf conditions by using an omnidirectional broad-band hydrophone to listen to the sound generated by waves breaking. Current and wave height information will be provided by current meters and pressure sensors respectively. The hydrophone data gives temporal information on the sound character of individual breakers and is compared with hydrodynamic and sediment concentration measurements. An over water video of the sea surface above the hydrophones will provide independent monitoring of wave breaking conditions.