from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Any of various
sciencesand technologiesdealing with soundtransmitted through water
Sorry, no etymologies found.
It overlaps seismology when these noises are transmitted into the sea floor, as in the sinking of the _Kursk_ or the sounds of Antarctic icebergs, but it's also possible to conduct underwater investigations based solely on hydroacoustics.
Forensic seismology has two sister sciences, hydroacoustics and infrasound.
Because hydroacoustics offers a way to track submarines, it is a military technology that played a major role in the Cold War, glamorized in Tom Clancy's submarine novel, _The Hunt for Red October_.
Russia is interested in the Mistral not only or primarily for its amphibious assault capabilities, but for its value as a command platform with advanced electronics for battle management and network-centric military operations at sea, as well as its hydroacoustics.