underwater acoustics
51Pelagic zone — Aquatic layers Pelagic    Photic       Epipelagic …
52Submarine canyon — A submarine canyon is a steep sided valley on the sea floor of the continental slope. Many submarine canyons are found as extensions to large rivers; however there are some that have no such association. Canyons cutting the continental slopes… …
53Mid-ocean ridge — Oceanic ridge, including a black smoker A mid ocean ridge is a general term for an underwater mountain system that consists of various mountain ranges (chains), typically having a valley known as a rift running along its spine, formed by plate… …
54Ocean exploration — is a term of biography describing the exploration of the ocean. It is also the period when people explored the ocean fishies. Notable explorers include: the Greeks, the Egyptians, the Polynesians, the Phoenicians, Phytheas, Herodotus, the Vikings …
55Current sea level rise — This article is about the current and future rise in sea level associated with global warming. For sea level changes in Earth s history, see Sea level#Changes through geologic time. Sea level measurements from 23 long tide gauge records in… …
56Ocean observations — The following are considered essential ocean climate variables by the OOPC[1][clarification needed] that are currently feasible with current observational systems. Contents 1 Ocean climate variables 1 …
57Institute of Sound and Vibration Research — Infobox University name = Institute of Sound and Vibration Research established = 1963 director = Professor Steve Elliott city = Southampton country = England campus = Highfield Campus students = 260 staff = 130 website = http://www.isvr.soton.ac …
58Naval Physical and Oceanographic Laboratory — Naval Physical Oceanographic Laboratory Established 1958 Director S. Anantha Narayanan Address Thrikkakara P.O., Kochi 682 021. Location Kochi, Kerala …
59Coriolis effect — For the psychophysical perception effect, see Coriolis effect (perception). Classical mechanics Newton s Second Law …
60Doppler effect — Change of wavelength caused by motion of the source. An animation illustrating how the Doppler effect causes a car engine or siren to soun …
