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Oceanography:Waves. Leone Vorster. What A re They?. Waves are actually energy. Energy, not water, moves across the ocean\'s surface Tsunamis result when underwater earthquakes and volcanic eruptions disrupt the water\'s surface A wave\'s size and shape reveals its origins

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oceanography waves

Oceanography:Waves

Leone Vorster

what a re they
What Are They?
  • Waves are actually energy. Energy, not water, moves across the ocean\'s surface
  • Tsunamis result when underwater earthquakes and volcanic eruptions disrupt the water\'s surface
  • A wave\'s size and shape reveals its origins
  • No two waves are identical, but they all share common traits
traits of ocean waves
Traits of Ocean Waves
  • Crest: The highest part of the wave above the still-water line.
  • Trough: The lowest part of the wave below the still-water line
  • Wave Height:The vertical distance between the crest and the trough. 
  • Wavelength: The horizontal distance between each crest or each trough.   
traits of ocean waves1
Traits of Ocean Waves
    • Still-Water Line:The level of the ocean if it were flat without any waves.
  • Wave Period:The time it takes for two successive waves to pass a particular point.
  • Wave Frequency:The number of waves that pass a particular point in a given time period.
  • Amplitude:The amplitude is equal to one-half the wave height or the distance from either the crest or the trough to the still-water line.
wave size
Wave Size
  • Beaufort Wind Force Scale
  • The size of a wave depends on:
    • The distance the wind blows (over open water) which is known as the "fetch”
    • The length of time the wind blows
    • The speed of the wind.
  • The greater these three, the larger the wave.
3 most dangerous waves
3 Most Dangerous Waves
  • Cyclops (remote south coast Western Australia)
3 most dangerous waves1
3 Most Dangerous Waves
  • Teahupoo (Tahiti)
3 most dangerous waves2
3 Most Dangerous Waves
  • Shipsterns(Tasmania, Australia)
extra wave information
Extra Wave Information
  • Wave Simulator
  • Enchanted Learning – Tsunami
  • Powerful Ocean Waves Video
  • Ocean Waves – Sustainable Energy
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