bathymeter
Ocean depth measurer
A bathymeter is an instrument for measuring water depth, particularly in oceans and lakes.
The device uses sound waves, pressure sensors, or other methods to determine how far below the surface the bottom lies.
Bathymetric surveys map underwater terrain for navigation, marine science, and resource exploration.
Distance below surface
- fathomsUnderstands or depth units
- soundingsMeasured water depths
- profilingCharacterizing by patterns
- contoursBoundary lines of shapes
mapping · charting · elevation · readings · precision · accuracy · data · survey
Acoustic depth-measuring instrument
- sonarUnderwater detection by echoes
- transducerEnergy form converter
- leadlineWeighted rope measuring depth
- plumbExactly vertical or true
sounder · profiler · submersible · probe · sensor · calibration · acoustic · signal
Ocean's solid base
- abyssalExtremely deep, unmeasurable
- trenchLong narrow excavation
- benthicOf the sea bottom
- submarineUnderwater naval craft
topography · sediment · geology · underwater · aquatic · marine · hydrography
depth
Distance below surface
contours · mapping · charting · elevation · readings · precision · accuracy · data · survey · calculation
echosounder
Acoustic depth-measuring instrument
- sonarUnderwater detection by echoes
- transducerEnergy form converter
- leadlineWeighted rope measuring depth
plumb · sounder · profiler · submersible · probe · sensor · calibration · acoustic · signal · frequency
seafloor
Ocean's solid base
submarine · topography · sediment · geology · underwater · aquatic · marine · hydrography