OCS 1005 Chapter : Ch 4 5
15 Mar 2019
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Document Summary
Listen to echo to measure depth of ocean. The first scientific expedition to use and echo sounder was: Satellite altimetry measure sea surface and height from orbit. Can estimate height of mound by using height of ocean. Horizontal and vertical scale in ocean are different. Plot of area of the earth"s surface above any given elevation or depth above or below sea level. More that half of earth"s solid surface is at least 3,000 meters below sea level. Deepest part in ocean larger than highest point on land. Florida coast- one of largest slopes on continental shelf in entire ocean. Amount of ice plays role in sea level. Movement of sediment creates turbulent current (turbidity current) Maximum ocean current velocity-- one to two knots. Volcanic projections that do not rise above sea level. Both created by spreading center at mid-ocean ridge. Everest is smaller than depth of marian"s trench.
