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2. SOFAR channel - Wikipedia

   en.wikipedia.org/wiki/SOFAR_channel

   The SOFAR channel (short for sound fixing 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 at its minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles before dissipating.

3. Sofar bomb - Wikipedia

   en.wikipedia.org/wiki/Sofar_bomb

   Sofar bomb. In oceanography, a sofar bomb (Sound Fixing And Ranging bomb), occasionally referred to as a sofar disc, [1] is a long-range position-fixing system that uses impulsive sounds in the deep sound channel ( SOFAR channel) of the ocean to enable pinpointing of the location of ships or crashed planes. The deep sound channel is ideal for ...

4. RAFOS float - Wikipedia

   en.wikipedia.org/wiki/RAFOS_float

   The SOFAR channel (short for Sound Fixing and Ranging channel), or deep sound channel (DSC), is a horizontal layer of water in the ocean at which depth the speed of sound is minimal, in average around 1200 m deep. [2] It acts as a wave-guide for sound, and low frequency sound waves within the channel may travel thousands of miles before ...

5. Sound speed profile - Wikipedia

   en.wikipedia.org/wiki/Sound_speed_profile

   A sound speed profile shows the speed of sound in water at different vertical levels. It has two general representations: tabular form, with pairs of columns corresponding to ocean depth and the speed of sound at that depth, respectively. a plot of the speed of sound in the ocean as a function of depth, where the vertical axis corresponds to ...

6. SOSUS - Wikipedia

   en.wikipedia.org/wiki/SOSUS

   The original system was capable of oceanic surveillance with the long ranges made possible by exploiting the deep sound channel, or SOFAR channel. An indication of ranges is the first detection, recognition and reporting of a Soviet nuclear submarine coming into the Atlantic through the Greenland-Iceland-United Kingdom (GIUK) gap by an array ...

7. Missile Impact Location System - Wikipedia

   en.wikipedia.org/wiki/Missile_Impact_Location_System

   The Missile Impact Location System or Missile Impact Locating System (MILS) [note 1] is an ocean acoustic system designed to locate the impact position of test missile nose cones at the ocean's surface and then the position of the cone itself for recovery from the ocean bottom. The systems were installed in the missile test ranges managed by ...

8. Depth sounding - Wikipedia

   en.wikipedia.org/wiki/Depth_sounding

   Depth sounding. A sailor and a man on shore, both sounding the depth with a line. Depth sounding, often simply called sounding, is measuring the depth of a body of water. Data taken from soundings are used in bathymetry to make maps of the floor of a body of water, such as the seabed topography. Soundings were traditionally shown on nautical ...

9. Marine mammals and sonar - Wikipedia

   en.wikipedia.org/wiki/Marine_mammals_and_sonar

   The SOFAR channel (short for "sound fixing and ranging channel"), or deep sound channel (DSC), [4] is a horizontal layer of water in the ocean centered around the depth at which the speed of sound is at a minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles ...