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Using the speed of sound in water (about 1500m/s in the sea, depending on the specific sea-water density).
So if there is a delay of 2 seconds between a depth-sounding sonar emitting a pulse and detecting its echo from the sea-bed, the water is 1500 X 2 = 3000m deep.
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How did the scientist determine the location and size of the underwater mountain chain?
using sonar waves
How did scientists determine the location and size of the underwater mountain chain?
using sonar waves
How do scientists determine the location and size of underwater mountain chains?
They determine it by using sonar.
What is the correct definition of sonar?
1. A system using transmitted and reflected underwater sound waves to detect and locate submerged objects or measure the distance to the floor of a body of water.2. An apparatus, as one in a submarine, using sonar.3. Echolocation.http://www.thefreedictionary.com/sonar
What words are the basis of sonar?
The word "sonar" is actually an acronym for "Sound Navigation and Ranging." It is based on the principles of using sound waves to detect and locate objects underwater.
Can you give me a sentence using the word sonar?
Sonar is an acronym.
How does a ship use sonar?
There are two types of SONAR (Sound Navigation and Ranging) used...active and passive. Passive SONAR is simply listening under water using hydrophones. With passive SONAR a vessel can determine the bearing (direction) of whatever is creating the noise right away. Using triangulation (multiple bearings at timed intervals) passive SONAR can now determine range, bearing, and speed. But this can be time consuming. Pro - stealth Con - time consuming Active SONAR requires emitting a noise underwater that is on multiple frequencies. Not just a single loud 'ping' like in the movies. As the sound reaches an object underwater the noise bounces back to the vessel that emitted the sounds. Sounds travel at given speeds, and using a calculation you can almost immediately determine range along with bearing. A second quick active SONAR burst and you now have speed. But, now everyone listening knows you are there as well. Pro - quick results Con - exposes yourself
What have people specifically found with sonar?
Sonar is a way of finding things underwater, using the echo of sounds you emit. We have used it to find the shape of the lake/sea/ocean bottoms, to determine the depth of waters, to find fish, to locate ship wrecks, and to detect the presence of ships and especially submarines.
What are the differences between side scan sonar multi-beam sonar?
Side scan sonar uses sonar to map the the ground below by emitting continuous sonar pulses while moving. The sound continuously reflects back to the system's receiver, which creates an image based on the energy of the signal received, where darker points in the image match things protruding from the ground and lighter spots indicate where there is nothing. It does not measure the depth. Side scan sonar is usually towed behind the vessel using it. Multibeam sonar is similar to side scan sonar, except that it is attached to the vessel (rather than being towed) and measures the time difference between sound emission and reception, rather than the energy of the incoming sound waves. Thus, it measures depth instead of making a picture.
What is a sub spotter called?
A sub spotter is typically called a Submarine Sonar Technician or Sonar Operator. Their role is to detect and locate enemy submarines using sonar technology.
What has the author William M Kucharski written?
William M. Kucharski has written: 'Underwater inspection of coastal structures using commercially available sonars' -- subject(s): Sonar, Ultrasonic equipment, Coastal engineering
What scientist used sonar to prove seafloor spreading under the Atlantic ocean?
Using sonar, oceanographers were able to show that the edges of the continental shelves matched.
