Marine acoustics is my passion: creating sounds to map the oceans and listening to sounds underwater. Both active and passive acoustics reveal the richness of the oceans but also how they are changing, and the role of human impacts.

I have worked in all oceans (except the Antarctic). I have used sonars to map mid-ocean ridges, hydrothermal vents, tsunami areas, shipwrecks, volcanoes, toxic waste, offshore renewable energy and marine vegetation. This field experience has been key to writing the Handbook of Sidescan Sonar, developing  new instruments  and encouraging a community-driven approach to improve sonar imaging.

Listening to whales in British Columbia introduced me to marine soundscapes and Arctic fieldwork showed how varied (and unexpected) sounds could be. Since then, I have used Passive Acoustic Monitoring to listen to the melting of glaciers and ice dynamics, ships and other human sources, all sorts of animals and weathers, earthquakes etc. My main interest is how they can combine sustainably in a rapidly changing ocean.

The impact of this research is leading to Knowledge Transfer with industry. the development of new international standards and increasing use of my results as scientific evidence in international policies.