fathometer sounding

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• Depth sounding — refers to a historical nautical term for measuring depth; it is often referred to simply as sounding. Sounding is finding the depth of a given point in a body of water. Sounding data is used in bathymetry to make maps of the floor of a body of… …   Wikipedia

• Soundings — Sounding is a historical nautical term for measuring depth. The term probably originated from the expression of sounding the well mdash; the well being a shaftlike structure in old sailing vessels that reached all the way to the lowest part of… …   Wikipedia

• Fishfinder — A fishfinder is a type of fathometer, both being specialized types of echo sounding systems, a type of Active SONAR. ( Sounding is the measurement of water depth, a historical nautical term of very long usage.) The fishfinder uses active sonar to …   Wikipedia

• USS Triton (SSRN-586) — USS Triton (SSRN/SSN 586), a U.S. Navy nuclear powered radar picket submarine, was the first vessel to execute a submerged circumnavigation of the Earth, accomplishing this during her shakedown cruise in early 1960. She also has the distinction… …   Wikipedia

• Fathom — unit of length m= 1.8288000 accuracy=5 A fathom is a unit of length in the Imperial system (and the derived U.S. customary units), used especially for measuring the depth of water. There are 2 yards (6 feet) in a fathom. Encyclopædia Britannica… …   Wikipedia

• Depth finder — A depth finder could mean any of the following: Sonar: use of underwater sound propagation to measure depth Fathometer or fishfinder: a device to locate fish at various water depths Echo sounding: a technique using sound pulses to measure depth… …   Wikipedia

• fathom — 1. noun /ˈfæðəm/ a) A measure of length corresponding to the outstretched arms, standardised to six feet, now used mainly for measuring depths in seas or oceans. b) Mental reach or scope; penetration; the extent of capacity; …   Wiktionary