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leagues
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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 form of technology first allowed researchers to confirm that the Mid-Atlantic Ridge exists?
SONAR
Would gneiss be more likely to form at shallow depths or at great depths where mountains are being pushed up and why?
Shallow depths because gneiss's changes are so great that all traces of the original shale are gone. :) I hope that helped! (: <3
Where do deep currents flow along in the ocean?
deep ocean currents form by the differences in the density of ocean water
Is ocean an adverb?
No, ocean is a noun. It can be used as an adjunct with other nouns, as in ocean waves and ocean currents. The adjective oceanic does not have an adverb form.
When was sonar invented?
Sonar was gradually developed and improved over many years, but the first operational form of sonar as we now know it goes back to about 1918.
Do dolphins have eyes?
Yes. As mammals, they have eyes. All mammals do.Dolphins have eyes to see above and below the water. They also have a form of sonar, echo location, to see objects under the water, at night and at depths that light does not go to.
What is the full form of SONAR?
Sound Navigation and Ranging
How did scientists first map the ocean floor depth?
Hydrographic surveyors (as people who map the ocean floor are called) typically utilize sonar systems to measure water depths. The simplest form is a single beam echosounder mounted on the underside of a boat floating on the surface. Like a flashlight that illuminates a small area in the direction it is pointed, a single beam sonar is pointed down and ensonifies a small area on the seafloor beneath it. The echosounder emits a pulse of acoustic energy into the water. This energy will travel down through the water; when it hits the seafloor (or anything else in the water column) some of the energy will be reflected back towards the echosounder. The speed of sound in water varies based on temperature, salinity and pressure, but is usually in the neighborhood of 1500 meters per second. By measuring the amount of time it takes for the acoustic energy to make its round-trip journey, and multiplying it by the speed of sound in water, we are able to calculate the depth.
What is the name of an early form of sonar used for locating submarines?
The answer is ASDIC
Whats d full form of SONAR?
SOund Navigation And Ranging
How does sonar use light or sound?
SONAR - sends out a pulse of sound... The resulting reflected sound is analysed to form a 'picture' of what's around the vessel.
Do Orcas use echolocation?
Killer whales use sonar which is a form of echolocation.
How do you map ocean floors?
Hydrographic surveyors (as people who map the ocean floor are called) typically utilize sonar systems to measure water depths. The simplest form is a single beam echosounder mounted on the underside of a boat floating on the surface. Like a flashlight that illuminates a small area in the direction it is pointed, a single beam sonar is pointed down and ensonifies a small area on the seafloor beneath it. The echosounder emits a pulse of acoustic energy into the water. This energy will travel down through the water; when it hits the seafloor (or anything else in the water column) some of the energy will be reflected back towards the echosounder. The speed of sound in water varies based on temperature, salinity and pressure, but is usually in the neighborhood of 1500 meters per second. By measuring the amount of time it takes for the acoustic energy to make its round-trip journey, and multiplying it by the speed of sound in water, we are able to calculate the depth.
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 are a dolphins special features that makes them different form other animals?
Sonar for one thing
What form of technology first allowed researchers to confirm that the Mid-Atlantic Ridge exists?
SONAR
