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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 else can I help you with?
What did oceanographers use to map ocean floors back then before sonar was made?
Back in the day, sailors would head out on the ships and tie a lead sinker to a line to measure the ocean floor. Hope this helped!! ;)
How many magama are in the ocean?
The ocean floors are largely made of magma.
How did scientists map the bottom of the ocean?
How scientists map the bottom of the ocean
How many volcanoes are on the ocean floors?
2,00000
How do you get through the ocean temple?
The Temple of the Ocean King in Phantom Hourglass has 19F if I am correct. You can only do a couple floors each visit. If you get the official guide, it shows you when to visit, and a complete map of each floor. Though you can only do a few floors each visit. This is because you either don't have the fairy to open the door, you don't have the Phantom Sword, or because you don't have the item.
What is a map of the ocean called?
A map of the ocean is called a topographic map. On a map the oceans surface has highs and lows look similar to the hills and valleys of the Earth's surface.
What is bathymetery?
is the study of underwater depth of lake or ocean floors.
What are found over the continents and also on the ocean floors?
Volcano's
What extrusive igneous rock is found on ocean floors?
Basalt
What is used to map mid ocean ridge?
sonar,is used to map mid-ocean ridges:]
Is a process by which ocean floors spread laterally from crests of main ocean ridges?
Sea floor spreading
What is the major cause of the distribution of sediments on the ocean floors of the world?
the temperature of the water in the upper layers of the ocean
