Ocean Movements

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Ocean Movements
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Wave
A rhythmic movement in which energy is carried
through water.
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Wave Height is determined by

• Wind speed
• Wind duration
• Fetch
• The amount of water that wind blows across

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Breakers

• Crest out running the trough of the wave
• Friction slows the bottom of the wave as it comes
  in to shore

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Tides

• The rise and fall of sea level
• Huge waves

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Spring Tides and Neap Tides
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Bay of Fundy
Highest high tides in the world
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Location North of New York
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Bay of Fundy Reversing Falls
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Reversing Falls
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Power from ocean movement
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Density Currents or Thermohaline Circulation
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Density Currents
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Thermohaline Circulation
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Wind Patterns
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Surface Currents (Winds)
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GyresOcean currents are influenced by the
continental masses around the three oceanic
basins. Continents cause these currents to
develop a circular pattern.
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El Nino

• Spanish for child (comes around Christmas time)
• Causes droughts in places that usually have rain
• Causes floods in places that are usually dry
• Starves ocean life by discontinuing upwellings
• Happens every 2 7 years

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• Upwelling
• Upward movement of ocean water
• Driven by winds pushing against surface water
• Cold deep water is pulled up off the ocean floor
• Nutrient rich this feeds ocean life

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Normal Conditions
El Nino Conditions
La Nina Conditions
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National Geographic El Nino
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• October 29, 2009
• Here's the good - and bad - news El Niño
  strengthensgt Posted by Ken Kaye on October 29,
  2009 0600 AM
• El Niño has grown to moderate strength, weather
  experts report.
• That's good news, as those of us who live in
  hurricane vulnerable areas well know.

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El Niño, an abnormal warming of the Eastern
Pacific Ocean, suppresses tropical storm
formation and theres still more than a month
to go before the end of hurricane season. As
winter sets in, a strengthening El Niño might not
be great news for the Southeast, as it is
expected to produce wetter and colder conditions
than normal. As we reported earlier, it also
could spawn severe weather, including tornadoes.
The National Weather Service in Miami will hold a
press conference today to expound on that. In the
meantime, Im guessing most are grateful to El
Niño for the quiet storm season thus far.