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Review#13 water and the climate
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Review#13 water and the climate

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Review#13 water and the climate Review#13 water and the climate Presentation Transcript

  • L.O:LARGE BODIES OF WATER,OCEAN CURRENTS & WATER CYCLE.
  • THE CLIMATE is the long-termweather.The hottest climates are around the EQUATOR (zerodegrees latitude) because of the greatest intensity(angle) of INSOLATION.
  • Ocean currents are thecontinuous flow of ocean waterat or below the ocean’s surface. View slide
  • There are warm surface currents &cool surface currents. View slide
  • warm surface currents begin in theequatorial regions and flow north.
  • cool surface currents begin in thenorthern regions and flow south.
  • Notice: The pattern of the surfaceocean currents.
  • the currents curve to the right in thenorthern hemisphere.
  • 1) The surface currents flow as theydo because of the planetary winds
  • 2) The surface currents (& theplanetary winds) curve becauseof the Earth rotates.
  • This deflection (curving)phenomena is called:The Coriolis effect
  • If the earth didn’t rotate, planetarywinds would flow from high latitudes tothe equator.
  • The curving of the winds (the corioliseffect) is due to the planet’s rotation.
  • Surface ocean currents affectearth’s climate.
  • warm ocean currents moderate coldclimates by bringing warm water &warm temperatures.
  • cool ocean currents moderate warmclimates by bringing cool water & cooltemperatures to them.
  • The gulf stream keeps the EasternNorth America, the British Isles &Norway from having a much colderclimates.
  • Ocean currents cool the hotterplaces, by moving solar energy tothe cooler places.
  • Ocean currents warm the coolerplaces, by bringing solar energyto them.
  • This might be New York or London orOslo, Norway without the Gulf streamto warm them.
  • This might be Chile, Argentina orCalifornia without the Cold currentsto cool them.
  • Besides ocean currents, just beNEAR a large body of water keepsthe land from getting too cold in thewinter or too hot in the summer