Geography- Climate Revision Cards

•  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

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. 

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. 

• 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.

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