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24 terms

Tilton Chapter 14

Movement of Ocean Water
STUDY
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rogue wave
a giant wave formed from the intersection of 3 or more wave crests
wavelength
distance from one wave crest to the next, or from one wave trough to the next
crest
the highest part of a wave
trough
the lowest part of a wave
surface currents
Streamlike movements of water on or near the surface. Formed by global winds, and influence by the Coriolis effect and continental deflection.
deep currents
Streamlike movements of water far below the surface. Formed when water at the surface increases in density from higher salinity or lower temperatures, and sinks.
salinity
a measure of the amount of dissolved salts in a given amount of liquid
wave height, or amplitude
the vertical distance from the crest to the trough of a wave
wave period
the time it takes one full wave, one wave length, to pass a fixed position
deep-water waves
Waves that occur in water that is deeper than half their wavelength
longshore currents
Currents that runs parallel to the shoreline; caused by waves colliding with the shore at an angle.
tsunami
A wave formed from a large volume of sea water being displaced up or down, from an earthquake, landslide, meteor impact, or volcanic eruption.
storm surge
a local rise in sea level near the shore that is caused by strong winds from a storm, such as those from a hurricane
tidal range
Is the difference in height between a high tide and the next low tide.
tidal bore
A body of water that rushes up a narrow bay, estuary, or river channel during the rise of high tide.
spring tide
A tide that occurs when the sun, Earth, and moon are aligned, and is characterized by the maximum tidal range.
neap tide
A tide that occurs when the sun, Earth, and moon form a right angle, and is characterized by minimal tidal range.
Bay of Fundy
A body of water in Canada with the greatest tidal range on Earth.
Hilo, Hawaii
City that was damaged from a tsunami caused by an earthquake in Chile in 1960
Lituya Bay
The site of the biggest tsunami, July 10 ,1958, measuring 524 m.
jetty
A wall built out into the ocean, perpendicular to the shore, designed to trap sand moving along the shore.
generator
a device that uses magnetism to convert energy of motion into electrical energy
turbine
large wheel that rotates when pushed by water, wind, or steam, and provides energy to a generator
Rance River, France
site of the largest tidal power plant in the world