due tomorrow... help a chick out Any help appreciated; I\'m certainly not asking
ID: 121512 • Letter: D
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due tomorrow... help a chick out
Any help appreciated; I'm certainly not asking for all answers in one post.
page Laboratory Exercise #6-Shoreline Processes Section A - Shoreline Processes: Overview of Waves e ocean's surface is influenced by three tvpes of motion (waves, tides and surface currents Shorelines dominated by wave action comprise approximately 80% of the coastlines on earth and will be the focus of today's laboratory exercise. Tidal action is dominant in 17% of the earth's shorelines with surface ocean currents (such as the Gulf Stream dominating only 3% of shorelines The anatomy of a wave includes the crest or highest point on a wave and the trough, which is the lowest point on a wave (Figure 1). The vertical distance between the crest and trough is referred to as the wave height. Additional important concepts include the wavelength, which is the distance between two successive crests. The wave base is the water depth below which no energy is felt by the passage of a wave. Note that the orbitals reflecting the movement below a wave are circular. Also, these orbitals become progressively smaller with greater depths until they disappear. The depth at which the orbitals disappear and where the water is no longer being moved by the wave is the wave basc. There is a simple mathematical relationship that defines wave base Wave base = 1 / 2 of wavelength For example, a typical fair weather wave has a wavelength of 60 feet. This wave will have a wave base of 30 feet. The shape of the orbitals below the wave in Figure 1 is circular. This type of wave is a wave of oscillation and occurs offshore. Waves of oscillation occur in water with depths greater than the wave base of the wave. What happens when the wave begins to touch the seafloor as it approaches the shoreline? First, friction begins to slow the wave and decrease wave velocity (Figure 1). As the wave velocity decreases the wavelength becomes shorter and the wave height becomes greater. Additionally the orbitals below the wave become distorted and orbitals closest to the surface are displaced closer to the shoreline than slower orbitals that are touching the sea floor. Shallow water waves that interact with the shoreline are referred to as waves of translation Ultimately, the wave can be built only so high and then the wave will disintegrate, which is referred to as wave breaking (or breakers). Wave breaking occurs when water depth becomes 1/20 of an open ocean wavelength. For example, again a typical fair weather wave that has a wavelength of 60 feet will have breaking waves in 3 feet of water. Obviously, waves break immediately offshore. The water that runs up onto the beach from the surf zone where all the waves are breaking is referred to swash and the return flow of water to the ocean is backswashExplanation / Answer
19. From figure 9, in x axis the 30 days are there in equal interval. In y axis the tidal range is given. Everyday day there is one high peak and one low peak in the line graph. That shows one greater tidal range and one lower tidal range. So in one day there are one high tide and one low tide.
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