Underwater Acoustic

The team develop underwater acoustic monitoring campaigns to characterize the acoustic soundscape of the marine environment as well as the noise introduced by renewable energy devices.

Many marine organisms use sound for a variety of purposes, e.g. to communicate, to identify prey and to navigate (short and long-range navigation). Man-made noise can potentially affect marine organisms in various ways and, therefore, the underwater noise assessment is an important factor in the Environmental Impact Assessment of renewable energy developments.

The WavEC team expertise on acoustic monitoring programs covers field noise measurements, data processing and analysis. Noise levels and impact zone mapping are the final outputs of the analysis. Noise measurements are carried out with digital and autonomous hydrophones, , which allows the noise recording over a long period of time in a frequency ranging up to 50 kHz, thus covering most of the man-made noise frequencies.

WavEC team has carried out a number of acoustic monitoring programs and research studies such as WEAM (Wave Energy Acoustic Monitoring project, SURGE (Waveroller technology development in Peniche), and is doing the acoustic monitoringof the WindFloat project installed in Aguçadora (North of Portugal), and of the Waveport Project in Santander, Spain.