metomodule9

• Ocean Currents


  Determine the causes, wind-driven and density of the ocean currents including regions of primary ocean currents
• Current


  The horizontal motion of the ocean
• Types of Current


  • Ocean current
  • Periodic current
  • Seasonal current
  • Permanent current
  • Coastal current
  • Longshore current
  • Offshore current
  • Inshore current
  • Stream current
  • Drift current
• Coastal current


  Flows roughly parallel to a coast, outside the surf zone
• Longshore current


  One parallel to a shore, inside the surf zone. Generated by waves striking the beach at any angle
• Offshore current


  Any current some distance from the shore
• Inshore current


  Any current close to the shore
• Ocean current


  A continuous, directed movement of sea water generated by a numbers of forces acting upon the water
• Causes of Ocean Current

  • Wind
  • Deflection by the rotation of the earth
  • Depth of water
  • Underwater topography
  • Shape of the basin in which the current is running
  • Extent and location of land
  • Density differences in the water
• Effects of Wind on Ocean Currents

  • Wind Strength: The power of the wind determines how the ocean currents would flow
  • Ocean Region: Some ocean regions are windy while some are not which cause different ocean currents
  • Earth's Rotation: The Coriolis Effect plays a role in determining the direction of the wind on Earth which in turn affects ocean currents
• Currents related to density differences

  As the seawater gets saltier, its density increases, and it starts to sink. Surface water is pulled in to replace the sinking water, which in turn eventually becomes cold and salty enough to sink. This initiates the deep-ocean currents driving the global conveyer belt. The greater the density gradient (rate of change with distance), the faster the related current
• https://www.youtube.com/watch?v=p4pWafuvdrY: 'How do Ocean Currents Work'
• Ocean Currents


  Determine the causes, wind-driven and density of the ocean currents including regions of primary ocean currents
• Current


  The horizontal motion of the ocean
• Types of current


  • Ocean current
  • Periodic current
  • Seasonal current
  • Permanent current
  • Coastal current
  • Longshore current
  • Offshore current
  • Inshore current
  • Stream current
  • Drift current
• Coastal current


  • Flows roughly parallel to a coast, outside the surf zone
• Longshore current


  • One parallel to a shore, inside the surf zone. Generated by waves striking the beach at any angle
• Offshore current


  • Any current some distance from the shore
• Inshore current


  • Any current close to the shore
• Ocean current


  A continuous, directed movement of sea water generated by a numbers of forces acting upon the water
• Causes of ocean current

  • Wind
  • Deflection by the rotation of the earth
  • Depth of water
  • Underwater topography
  • Shape of the basin in which the current is running
  • Extent and location of land
  • Density differences in the water
• Effects of Wind on Ocean Currents

  • Wind Strength: The power of the wind determines how the ocean currents would flow
  • Ocean Region: Some ocean regions are windy while some are not which cause different ocean currents
  • Earth's Rotation: The Coriolis Effect plays a role in determining the direction of the wind on Earth which in turn affects ocean currents
• Currents related to density differences

  As the seawater gets saltier, its density increases, and it starts to sink. Surface water is pulled in to replace the sinking water, which in turn eventually becomes cold and salty enough to sink. This initiates the deep-ocean currents driving the global conveyer belt. The greater the density gradient (rate of change with distance), the faster the related current
• https://www.youtube.com/watch?v=p4pWafuvdrY: 'How do Ocean Currents Work'