Why do climates vary
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Why Do Climates Vary?. Latitude. This means how far north or south a place is from the equator. The sun’s rays are concentrated at the equator but spread out at the poles. Altitude.

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Latitude l.jpg
Latitude

  • This means how far north or south a place is from the equator.

  • The sun’s rays are concentrated at the equator but spread out at the poles.


Altitude l.jpg
Altitude

  • This is the distance above sea-level. The higher the place is, the colder it will be because heat from the sun is reflected by the Earth’s surface.

  • This reflected heat warms the lower layer of the atmosphere, so the higher up you go, the colder it will be.


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Distance from the Sea

  • In the summer, the sun heats the land quickly but it takes longer to heat up the water which is large and deep.

  • However, the water stores heat for longer and so in winter, the temperature of the sea is warmer relative to the land and so keeps coastal places warmer.


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Ocean Currents

  • In winter, a warm ocean current called the North Atlantic Drift raises the temperatures in the west.

  • You can grow palm trees in Devon!


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Prevailing Winds

  • These are the winds that blow most often.

  • Winds can affect temperature and precipitation.

  • Winds blowing over tropical oceans bring warm and wet weather.

  • Winds blowing from the poles and over land bring cold and dry weather.


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