Chapter 12 Vocabulary – Flashcards
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breaker
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wave that crashes on a beach.
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crest
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highest part of a wave.
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current
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stream of moving water below the ocean's surface.
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deep current
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current that flows deep beneath the ocean's surface and is caused mainly by the differences in water density.
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long distance surface current
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current that flows near the ocean's surface for thousands of kilometers.
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longshore current
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short distance surface current that tends to flow parallel to the shoreline.
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rip current
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powerful narrow flow of water back out to sea; type of strong undertow.
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short distance surface current
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current that flows near the ocean's surface for short distances.
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surf
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surging water on a beach caused by breakers.
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surface current
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current caused mainly by wind patterns.
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swell
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long, wide wave that is not very high and usually is found far out at sea.
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trough
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lowest part of a wave.
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tsunami
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largest of all ocean waves.
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undertow
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flow of water back toward the sea that may or may not be strong.
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upwelling
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the movement of deep, cold, and nutrient-rich water to the surface
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wave
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disturbance in a medium; pulses of energy that move through the water.
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wave height
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vertical distance between a crest and a trough.
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wavelength
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horizontal distance between two successive crests or two successive troughs.
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wave period
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interval of time required for successive crests or troughs to pass a certain point.
