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What is under there anyway?. 3 of the Major Oceans. Atlantic – the shallowest ocean (3.3km average depth). Indian – second shallowest ocean (3.8km average depth). Pacific – the deepest ocean (3.9km average depth). The Seven Seas. There are over 100 seas – what were the original “Seven Seas”?.
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3 of the Major Oceans Atlantic – the shallowest ocean (3.3km average depth) Indian – second shallowest ocean (3.8km average depth) Pacific – the deepest ocean (3.9km average depth)
The Seven Seas There are over 100 seas – what were the original “Seven Seas”?
SONAR • Important to help map ocean floor • Sound Navigation and Ranging
How SONAR works… ocean surface receiver transmitter ocean floor
Differences in the time it takes for the sound waves to leave the boat and then return tell scientists how deep the ocean bottom is.
Side-scan sonar is used to create an image of large areas of the sea floor. This tool is used for mapping the seabed in conjunction with seafloor samples it is able to show differences in material and texture type of the seabed.
