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Edexcel GCSE Geography - Weather and Climate Revision

Weather and Climate Revision:

  • Weather - Day-to-day changes in atmospheric conditions.
  • Climate - Averages of weather based on past years according to time of year and location.
  • Troposphere - The section layer of the atmosphere.
  • Intertropical Convergence Zone (ITCZ) - Where 2 sets of trade winds meet.

Jet Stream: Fast-flowing, meandering air currents in the upper atmosphere.

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Ocean Currents:

  • Caused by wind, tides, water density and gravity

  • Distribute warmth across the

  • Surface Currents - move the upper 10% of water

  • Deep Ocean Currents - move the lower 90% of water

  • Thermohaline Circulation -

    • Water on the surface of the ocean is cooled by the wind.
    • This then sinks, as cold water is denser than warmer water
    • When it sinks to the bottom of the ocean, it is heated by the Earth’s core
    • This then causes it to rise
    • This process continues constantly

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