Multibeam Echo Sounders

NOAA hydrographic survey units use multibeam echo sounders to acquire water depth information in a survey area; to determine least water depths over critical items such as wrecks, obstructions, and dangers to navigation; and to detect objects in general.

Interested in more? Click the link’s below.

http://www.nauticalcharts.noaa.gov/hsd/multibeam.html

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