Researchers in MIT’s Department of Ocean Engineering have become leaders in the science of ocean acoustics. At MIT, this work has advanced the development of new propagationmodeling algorithms. These mathematical models help scientists understand how sound moves through the oceans, and form the basis for using sound as a sensing tool, e.g., for deducing temperature changes in the ocean. Applications of faculty research range from climate studies and oceanographic sensing to studying the effects of sound on marine mammals.