OCS Chap 11

OCS Chap 11 - Bayley Simmons OCS 1005 Homework #8 March 23,...

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Bayley Simmons OCS 1005 Homework #8 March 23, 2010 1. Though they move through all the ocean, tides are referred to as shallow-water waves. How can that be? a. Shallow water waves are defined as waves traveling in depths less than 1/20th of their wavelength. Tides have wavelengths of half the Earth's circumference. No part of the ocean is that deep. Tides are not at equilibrium with tidal potential. The shallow-water wave which is the tide cannot move fast enough to keep up with sun and moon 2. (a) What are the most important factors influencing the heights & times of tides? (b) What tidal patterns are observed? (c) Are there tides in the open ocean? (d) If so, how do they behave? 2a. - As the moon travels around the earth and as they, together, travel around the sun, the combined gravitational forces cause the world's oceans to rise and fall. 2b. - When the sun and moon are aligned, there are exceptionally strong gravitational forces, causing very high and very low tides which are called spring tides, though they have
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