17 terms

Georgia Virtual Learning: Moving Water Terms

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Speed (of waves)
Frequency multiplied by wavelength
Surface currents
Currents on the surface of the ocean moved primarily by wind
Deep water currents
Currents found in 90% of the ocean that are driven by temperature, salinity, and gravity
Upwellings
Water from the deep sea travels up to the surface carrying nutrients to the ocean surface
Density currents
Currents driven by gravity as density differences in the once leads to pressure differences
Westerlies
Prevailing winds between 30 and 60 degrees latitude blowing from high pressure areas toward the poles
Trade Winds
Easterly surface winds found in the tropics near the Earth's equator
Gulf Stream
Ocean current named by Benjamin Franklin found in the Atlantic carries warm water from the Gulf Coast along the eastern seaboard of North America
Wavelength
Distance between repeating units of a wave (crest or trough) given a frequency
Frequency
The number of occurrences of a repeating event
Tsunami
A series of waves that is created when a large body of water is rapidly displaced
Capillary
Small waves that occur at the interface between substances air and water
Chop
Small waves caused by strong winds that makes the water choppy or slightly rough
Swell
Long surface waves typically caused by tropical storms
Seiche
Standing wave that oscillates from a few minutes to a few hours as a result of seismic or atmospheric disturbances
Tide
A periodic variation in the surface level of the ocean caused by gravitational attraction of the moon and sun
Semi-diurnal
Waves that occur every 12 hours and 25 minutes
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