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  2. Depth sounding - Wikipedia

    en.wikipedia.org/wiki/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 charts in fathoms ...

  3. Bathymetry - Wikipedia

    en.wikipedia.org/wiki/Bathymetry

    Bathometer – A scientific instrument for measuring water depth; Bathymetric chart – Map depicting the submerged terrain of bodies of water; Coastal morphodynamics – Interaction of shoreline seafloor topography and fluid hydrodynamic processes; Depth gauge – Instrument that indicates depth below a reference surface

  4. Bathometer - Wikipedia

    en.wikipedia.org/wiki/Bathometer

    A bathometer (also bathymeter) is an instrument for measuring water depth. [1] [2] It was previously used mainly in oceanographical studies, but is rarely employed nowadays. The term originates from Greek βαθύς (bathys), "deep" and μέτρον (métron), "measure".

  5. Echo sounding - Wikipedia

    en.wikipedia.org/wiki/Echo_sounding

    Echo sounding or depth sounding is the use of sonar for ranging, normally to determine the depth of water . It involves transmitting acoustic waves into water and recording the time interval between emission and return of a pulse; the resulting time of flight , along with knowledge of the speed of sound in water, allows determining the distance ...

  6. Depth gauge - Wikipedia

    en.wikipedia.org/wiki/Depth_gauge

    A depth gauge is an instrument for measuring depth below a vertical reference ... With water depth, the ambient pressure increases 1 bar for every 10 m in fresh water ...

  7. Hydrographic survey - Wikipedia

    en.wikipedia.org/wiki/Hydrographic_survey

    Bathymetry – Study of underwater depth of lake or ocean floors Bathymetric chart – Map depicting the submerged terrain of bodies of water; Echo sounding – Measuring the depth of water by transmitting sound waves into water and timing the return; Hydrography – Measurement of bodies of water

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