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an ultra sound wave is sent by a transmitter when it touches the ocean/sea bed it gets reflected and travels to the detector by using the formula distance=speed X time w
e can derive the formula 2d=v X t since the distance is double (the waves travel down and up) v is the speed of sound in water and t is the time taken
Wiki User
∙ 12y ago
Wiki User
∙ 15y agobecause we know the speed that sound travels in water. So we can tell how far away an object is by how long it takes the sound to bounce off of it and return.
Wiki User
∙ 13y agoD=depth
T=time
V=speed
it travels at 1534 m/s i think.
the formula is D= 1/2T*V
I hope this helped!
Wiki User
∙ 13y agoSONAR sends high frequency sound-waves that bounce back when they hit something. The strength of the signal is how far away it is.
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What did scientist use to map the ocean floor?
sonar - by bouncing sound signals off the bottom of the ocean, they were able to map the depth of the ocean. Deep sea diving would take too long. Satellites were not in orbit until the 1970's and submarines were not necessary since sonar could be done from the surface on a boat.
How can a person measure vast distance such as the depth of a deep ocean or the diameter of the earth?
The depth of the ocean can be measured using principles such as sonar wherein a wave with a known speed is projected towards the bottom surface and the time lapsed until the wave returns is divided by two and them multiplied by the speed of the wave in order to calculate the distance traveled in one direction. The diameter of the earth can be calculated numerous ways, one of which is to measure the change in angle of the earth between two points (e.g. the change in apparent height of a ship at sea level as the distance from the observer increases) and then extrapolate the total circumference of the earth, diameter can then be solved for by dividing the circumference by Pi.
How modern technology helps prove the theory of plate tectonics?
important and uprising clues about earths crust have been collected from the sea floor using sonar
Are maps made from sonar and magnetometer data led to the discovery of ocean ridges and deep-sea trenches?
no they found ocean ridges sonar maps alone found deep-sea trenches
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.
How can we measure the depth of sea by using SONAR?
Simply by measuring the time it takes for the sonar 'ping' to return to the device that sent it. The speed of sound is constant - and dividing the time by the speed of sound gives the distance !
How the depth of the sea determined by sound waves?
sonar
What are the applications for sonar?
A)to find the depth of the sea b)the sonar device measures the time taken by the ultrasonic sound to travel from the ship to the bottom of the sea .
Sonar measures underwater distances by using what?
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.
What do Scientsts use sonar for?
Scientsts use sonar to map the depth of water in sea and river etc..,they also use sonar to locate and identify object underwater
What types of technology are used to study ocean floor?
Its FathometerUsing SONAR (Sound Navigation And Ranging) we can measure the depth of the sea.FathometerSONARSONAR: An acronym for SOund Navigation And Ranging.Sonar is used.usually "sonar" is used for its measurementbuutttSonogram
How does the information gathered by ships using sea beam sonar differ from the collected with standard methods that use one sonar device?
A sonar uses one device and a sea beam uses a dozen sonar devices.
How does the information gathered by ships using Sea Beam sonar differ from that collected with standard methods that use one sonar device?
A sonar uses one device and a sea beam uses a dozen sonar devices.
What is the instrument used to measure the depth of sea called?
The simplest and older - shot-line. For faster and more accurate work, especially in deep water, sonar is used now; its simplest form being the echo-sounder.
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.
Do they measure river depth by sea level on some rivers?
Tjehs
How is sea beam used?
It maps ocean-floor features, sea beam relies on sonar which is the use of sound waves to detect & measure objects underwater.
