Ch 18 Ocean Motion

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20 Cards. Created by Paul ().
 
Term  
Definition

Coriolis effect

the curving of the path of a moving object from an otherwise straight path due to the earth's rotation

crest

the highest point of a wave

deep current

a streamlike movement of ocean water far below the surface

El Nino

a change in the surface water temperature in the Pacific Ocean that produces a warm current

La Nina

a change in the Eastern Pacific Ocean in which the surface water temperature becomes unusually cool

longshore current

a water current that travels near and parallel to the shore

neap tides

a tide of minimum range that occurs during first and third quarters of the moon

Ocean current

a movement of ocean water that follows a regular pattern

spring tides

a tide of increased range that occurs two time a month, at new and full moons

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

surface current

a horizontal movement of ocean water that is caused by wind and that occurs at or near the ocean's surface

swell

one of a group of long ocean waves that have steadily traveled a great distance from their point of generation

tidal range

the difference in levels of ocean water at high tide and low tide

tide

the periodic rise and fall of the water level in the oceans and other large bodies of water

trough

the lowest point of a wave

tsunami

a giant ocean wave that forms after a volcanic eruption, submarine earthquake or landslide

undertow

a subsurface current that is near the shore and that pulls objects out to sea

upwelling

the movement of deep,cold, and nutrient rich water to the surface

wavelength

the distance from any point on a wave to an identical point on the next wave

whitecap

the bubbles in the crest of a breaking wave