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(Nautical Terms) trademark a type of echo sounder used for measuring the depth of water
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Noun1.fathometer - depth finder for determining depth of water or a submerged object by means of ultrasound waves
depth finder - navigational instrument used to measure the depth of a body of water (as by ultrasound or radar)
References in periodicals archive ?
The USGS has been gauging stream flow at the chosen bridge sites for long periods, but detailed monitoring including continuous measurement (30-minute intervals) of pier scour using fathometers and velocity measurements using acoustic velocity meter has been underway since 2002 as part of a large scour study for the Georgia Department of Transportation (GDOT) [15].
Mass aggregations can be detected by standard fathometers used by commercial fishermen, who report that mass aggregations on the sea floor are rare in Monterey Bay.