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sci chapter 2 ocean

TermDefinition
salinity the total amount of dissolved salts in a water sample
sonar A system that uses reflected sound waves to locate and determine the distance to objects under the water
seamount A steep sided volcanic mountain rising from the deep ocean floor
trench A deep, steep sided canyon in the ocean floor
continental slope A steep incline of the ocean floor leading down from the edge of the continental shelf
continental shelf A gently sloping shallow area of the ocean floor that extends outward from the edge of a continent.
abyssal plain A smooth, nearly flat region of the deep ocean floor
mid-ocean ridge An undersea mountain chain where new ocean floor is produced; a divergent plate boundary under the ocean
wave the movement of energy through a body of water
wavelength the distance between two corresponding parts of a wave, such as the distance between two crests
frequency the number of complete waves that pass a given point in a certain amount of time
wave height the vertical distance from the crest of the wave to the trough
tsunami a giant wave usually caused by an earthquake beneath the ocean floor
longshore drift the movement of water and sediment down a beach caused by waves coming in to shore at an angle
rip current a strong, narrow current that flows briefly from the shore back toward the ocean through a narrow opening
groin A wall made of rocks or concrete that is built outward from a beach to reduce erosion
current a large stream of moving water that flows through the oceans
Coriolis effect the effect of earths rotation on the direction of winds and currents
climate the average annual conditions of temperature, precipitation, winds, and clouds in an area
El Nino an abnormal climate event that occurs every two to seven years in the pacific ocean, causing changes in winds, currents, and weather patterns for one to two years
La Nina A climate event in the eastern pacific ocean in which surface waters are colder than normal
Created by: user-1975227
 

 



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