Course content

The course gives the theoretical and numerical treatment of advanced issues in marine acoustics. It covers nonlinear acoustics, reflection and scattering of simple geometrical bodies, particles and bubbles; diffraction and scattering of finite plates with even and rough surfaces. Furthermore, the course treats acoustic and elastic waves in solid media and waves in layered media. Particular emphasis is given to acoustics of marine sediment and porous media based on the Biot theory. Elements of non linear acoustics and the design of parametric sound sources are discussed. Finally, some of the more common methods for measurement and characterization of sea bottom properties are presented and discussed.

Learning outcome

In this course the students will a) learn the theoretical treatment of advanced issues in marine acoustics; b) understand numerical numerical modeling for wave propagation in layered aoucstic and elastic media; c) know about remote sensing of seabed’s topography, structure, and composition; d) know about typical applications of marine acoustics and seismics.

Learning methods and activities

Lectures, colloquium, compulsory and optinally homework problems and computer exercises in Matlab. Protfolio assessment is the basis for the grade in the course. The grade is based on a project report and final oral exam. If there is re-sit examination, it may be only oral.

Recommended previous knowledge

Course TTT4175 Marine Acoustics or equivalent background on physics, mathematics and signal processing.

Course materials

Jens M. Hovem: Marine Acoustics, The Physics of Sound in Underwater Environments, Peninsula Publishing, Los Altos, California, USA, Chapter 12-18.

Credit reductions