Geography- Climate Revision Cards

Revision cards for Climate and Weather, AQA A2 Geography.

  • Created by: Pheebie
  • Created on: 25-10-12 14:57

Factors Effecting Weather

  •  Fronts
  • Cloud cover
  • Latitude
  • Distance from sea
  • Ocean Currents/ Conveyor belt
  • Prevailing Winds
  • North/ South facing slope
  • Diurnal range
  • Altitude
  • Seasons
  • Urbanisation/ Urban heat island effect
  • Time of day
  • Angle of the sun
  • High/ Low pressure
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Types of Cloud


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Tri- Cellular Model


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Coriolis Effect

Every point on the Earth's surface rotates over a 24 hour period.

This causes air to move East in the Northern atmosphere and West in the Southern atmosphere. 


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Pressure Gradient and Geostrophic Winds

PRESSURE GRADIENT: Force and deflection at a balance leads to pressure moving from high to low or low to high. It can be described as change in pressure across a given difference. 

GEOSTROPHIC WINDS: Result of exact balance between Coriolis force and pressure gradient where the wind runs exactly parallel to isobars. 

(                           (

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  • Fast flowing air currents in the Earth's atmosphere.
  • Meandering shape.
  • There are two types; the Polar Jet Stream and the Sub-Tropical Jet Stream.
  • Caused by a combination of the Earth's rotation and atmospheric heating.
  • Since 2007- it has being low across UK meaning it has become a lot colder.
  • Width of 2km and depth of 5km.
  • Lies about 7-12km above the Earth's surface.
  • Polar jet stream is stronger as it's closer to sea level.
  • Moves between 100-300km per hour.
  • Located in the troposphere.


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El Nino & La Nina

El Nino:

  • Occurs across tropical Pacific Ocean approx. every 5 years.
  • Also called Southern oscillation.
  • Causes a warm rush into the ocean of about 5 degrees increase.
  • This intern causes change in climate and weather around the world.
  • Causes drier weather in usually wet places and wet weather in usually dry places.
  • LA NINA is the opposite effect. It's caused by over compensation after El Nino.

          La Nina(

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