SOFAR channel — The SOFAR channel (short for Sound Frequency and Ranging channel), or deep sound channel (DSC),[1] is a horizontal layer of water in the ocean at which depth the speed of sound is minimal. The SOFAR channel acts as a waveguide for sound, and low… … Wikipedia
sofar — ˈsōˌfär, fȧ(r noun ( s) Etymology: sound fixing and ranging : a system for locating an underwater explosion at sea by triangulation based on the reception of the sound by three widely separated shore stations that is usable in a search for… … Useful english dictionary
Ocean acoustic tomography — The western North Atlantic showing the locations of two experiments that employed ocean acoustic tomography. AMODE, the Acoustic Mid Ocean Dynamics Experiment (1990 1), was designed to study ocean dynamics in an area away from the Gulf Stream,… … Wikipedia
Marine mammals and sonar — A Humpback whale Active sonar, the transmission equipment used on some ships to assist with navigation, has been suggested[1] to be detrimental to the health and livelihood of some marine animals, although the precise mechanisms for this are not… … Wikipedia
DSV Alvin — ALVIN redirects here. For other uses, see Alvin. Alvin in 1978, a year after first exploring hydrothermal vents. Alvin (DSV 2) is a manned deep ocean research submersible owned by the United States Navy and operated by the Woods Hole… … Wikipedia
Maurice Ewing — in 1948. Photo courtesy Columbia University Born May 12 … Wikipedia
Megatsunami — An artist s rendering of wave shoaling of a tsunami. Megatsunami (also known as iminami (斎波?, purification wave )) … Wikipedia
Marine pollution — While marine pollution can be obvious, as with the marine debris shown above, it is often the pollutants that cannot be seen that cause most harm. Marine pollution occurs when harmful, or potentially harmful effects, can result from the entry… … Wikipedia
Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) … Wikipedia
Coriolis effect — For the psychophysical perception effect, see Coriolis effect (perception). Classical mechanics Newton s Second Law … Wikipedia
