Definition

1. Noun:
   • A method of determining the depth of water or the location of underwater objects: "Echo sounding" is a technique that measures the time it takes for a sound pulse to travel to the seafloor or an object and for its echo to return. This time measurement is used to calculate distance.

Usage

• Noun:
  • The ship used echo sounding to map the ocean floor.
  • Modern echo sounding provides highly accurate bathymetric data.

Advanced Usage

• Scientific and Nautical Context: The term is primarily used in oceanography, hydrography, and navigation. It describes the fundamental principle behind sonar (Sound Navigation and Ranging) technology.
  • The research vessel's primary tool for the survey was continuous echo sounding.

Variants and Related Words

• Echosounder (n): The electronic device used to perform echo sounding.
  • The fisherman checked his echosounder for the water depth.
• Sonar (n): A broader technology for underwater detection and navigation that operates on the principle of echo sounding.
  • The submarine's sonar detected an object ahead.

Synonyms

• Sounding: The general act of measuring depth, often using an echo sounder.
• Depth sounding: Specifically measuring the depth of water.

Related Phrases

• Take a sounding: To measure the depth of water.
  • The captain ordered a sailor to take a sounding.

Noun

1. determining the location of something by measuring the time it takes for an echo to return from it