EAPS 10400 Study Guide - Spring 2019, Comprehensive Final Exam Notes - Plankton, Photosynthesis, Photic Zone
30 Mar 2019
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The study of the depth of a body of water. Sounding = dropping weight with rope and measuring the rope when it hits the bottom. Hemp rope piano wire steel cable. Looks for items in front of the ships (mainly icebergs) Speed of sound in sea water = 1500 m/s. Beam of sound waves travels to the bottom and is reflected back to ship: depth = v(t/2) Multi-beam = using multiple beams to determine multiple depths of the ocean to determine a path: shallow depths = narrow (red, deep depths = wider (blue) *the deeper the water the wider the multi-beam detection path. Uses radar wave to sense the time of detection. Knows the height of satellite in terms of the earth change in return time means a change in surface altitude looks at how gravity pulls water inch variation. *geosat can determine the depth of the ocean by____. *geosat can accurately measure the height of the ocean because ____.
