Distributed Acoustic Sensing (DAS) is transforming underwater monitoring by repurposing fiber-optic cables as dense acoustic sensor arrays. In this talk, I will introduce the fundamentals of DAS, explaining how it works and its emerging applications in underwater acoustics. I will then explore how DAS can be leveraged for environmental monitoring at offshore energy sites, providing case studies that highlight its potential for detecting marine life, assessing noise impact, and monitoring infrastructure integrity. Finally, I will discuss the benefits and limitations of DAS for offshore energy applications, addressing key challenges such as data interpretation, spatial resolution, and sensitivity to high-frequency signals. This talk will provide insights into how DAS can complement existing monitoring technologies and contribute to sustainable offshore energy development.
