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30 Cards in this Set
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- 3rd side (hint)
wave height
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The vertical distance from the crest of a wave to the trough.
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Wave
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The movement of energy through a body of water.
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wavelength
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The horizontal distance between 2 wave crests.
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frequency
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The number of waves that pass a specific point in a given amount of time
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trough
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The lowest point of a wave.
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how do waves form
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Most waves form when winds blowing across the waters surface transmits thier energy to the water.
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Crest
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The highest point of a wave.
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What causes tides
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By the interaction of the sun, earth and the moon.
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Tides
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the daily rise and fall of earths waters on the shore
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spring tide
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a tide with the greatest difference between low tides that occur when the sun and moon are aligned with the earth
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neap tide
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a tide with the least difference between low tides that occur when the sun and moon pull each other at right angles
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energy from the tides
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the movment of huge amounts of water between high and low tides are a sourse of potencial energy, so engineers desinged tidal power plants that caputre energy as the tides move.
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ocean water
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96.5 water; 3.5 salt; of that salt sodium 30.6, Chlorine 55, sulfate 7.7; magnesium, 3.7 calcium 1.2, potassium 1.1 ; 0.76 other
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None
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salinity
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the amount of salt in water
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Gases in water
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oxygen and carbon dioxide;
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temperature
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The water gets colder the deeper you go.
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None
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desity
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more salinity the the more density
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pressure
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Increases 10 times in 100 meters of depth
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surface zone
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extends from surface to about 200m and the temp. is 17.5
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None
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Transition zone
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extends from the bottom of the surface zone about 1 km temp about 4
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None
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deep zone
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extends about 1km to the ocean floor, tmp about 3.5 C
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submersible
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a underwater vehicle built of strong matereals to resist pressure
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None
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current
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it is a large stream of moving water that flows through oceans
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None
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what are surface currents driven by
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by wind (100m down)
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coriosis effect
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the way the earth's rotation makes winds in the Northern hemisphere curve to the right and the winds in the Southern hemsiphere curve to the left
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None
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climate
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is the pattern of temperature and precipitation typical of an area over a long period of time
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None
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how do currents affect the climate
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if the water is cool it cools the air above it
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how are deep currents formed
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They are caused by the differences in density,
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None
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upwelling
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upward movement of cold water
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El nino
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an abnormal climate event that occurs every 2-7 years in the Pacific Ocean, causing changes in winds currents and weather changes that can lead to dramatic climate changes.
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None
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