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33 Cards in this Set
- Front
- Back
measures the amount of dissolved salts in water
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salinity
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salinity of the ocean
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35 ppt
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salinity of ocean _________ with depth
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increases
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A sea level, atmospheric pressure is one ___________
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atmosphere
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ocean water temp ____________ with depth
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decreases
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average temp of ocean surface water is ________
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17 degrees celcius
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ocean water density ________ with depth
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increases
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saltwater is used in:
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power plants, mining, industry
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The temperature of ocean surface water depends on _____.
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latitude and season
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Dissolved minerals from rocks are deposited in the _________
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ocean
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highest part of a wave
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crest
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distance over which wind blows without interruption or change of direction
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fetch
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alternate rising and falling of the ocean caused by the gravitational pull of the moon and the Sun
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tide
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lowest part of a wave
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trough
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surface waves are caused by _______
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wind
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impact waves are caused by a _________
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disturbance
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The size and power of a wind-generated wave is determined by _________ and ______.
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wind speed, fetch
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there are ___ high and low tides in each cycle
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2
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spring tides happen when the _____, _____, and the _____ are aligned
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sun, earth, moon
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Neap tides happen when the Sun and moon are at a ___________ to Earth.
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right angle
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The amount of time it takes for a two consecutive wave crests to pass a given point is the _____.
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wave period
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Earth's tides are primarily caused by _____.
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moon
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downward movement of surface ocean water caused by wind
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downwelling
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downward movement of surface ocean water caused by wind
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gyre
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movement of deep ocean water driven by differences in temperature, salinity, and density
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thermohaline circulation
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upward movement of deeper, colder ocean water to the surface caused by wind
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upwelling
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surface currents are driven by ________
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wind
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northeast/ southeast trade winds are near the __________
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equator
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westerlies are in _______ latitudes
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middle
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polar easterlies are in _______ latitudes
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high
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earth's rotation causes _______ and _______ to bend, causing the ______________
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winds, currents, coriolis effect
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Deep ocean currents are driven by differences in ____________, __________, and __________. It is called thermocline circulation
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temp, salinity, density
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The Gulf Stream _____.
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flows in a general northeastern direction
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