The H2020 SATURN project (Solutions at Underwater Radiated Noise), is a transdisciplinary consortium of 20 partners from 9 countries across Europe (Ireland, Denmark, France, Italy, Germany, the Netherlands, Spain, the UK, and Norway). The SATURN consortium was assembled to provide a balance of expertise in fundamental and applied biological research, bioacoustics, maritime architecture and engineering. This combined trans-disciplinary expertise will work to address the issue of underwater radiated noise (URN) in the marine environment and seek to identify solutions and techniques to mitigate the global impact and minimise risk for receptor species at individual, population and ecosystem level.

To reach their goals, the SATURN project is structured in the following technical working packages:

• Standardised methods to facilitate impact assessment and cost-effective URN measurements
• Impact of URN on behaviour, health, energetics and populations of aquatic organisms
• Demonstrating and assessing solutions to mitigate effects of ship noise
• Dissemination, outreach and communication
• Stakeholder engagement, exploitation, and policy support

TSI has a key role in the project where, among its involvement in most of the working areas, it is in charge of leading the execution of the URN trials. The participation in European projects focused on URN since 2009 (SILENV, BESST, AQUO) confirms TSI as a regular participant in the URN field at the international level. Some of the tasks that TSI will develop during the SATURN project are:

• Performing URN tests both in deep and shallow water (according to different standards)
• Performing onboard noise and vibrations measurements
• Assessing the feasibility of a cost-effective solution for vessel URN based on onboard measurements
• Quantifying and assessing uncertainty related to URN measurements
• Collaborating on the development of an international standard to measure URN in shallow water: [ISO 17208-3]

TSI will use the Ángeles Alvariño (oceanographic vessel of the IEO) for the URN tests execution,  performing the measurements in the Canary Islands during November 2022. TSI will also be responsible for reporting and sharing the results of the tests with the rest of the consortium partners, providing feedback about the execution of the draft version of the ISO 17208-3 standard as well. In addition, TSI will collaborate in the subsequent uncertainty analysis with prestigious companies in the industry such as JASCO, TNO, or Bureau Veritas.