Topic 1: Hazardous Earth Flashcards Preview

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Flashcards in Topic 1: Hazardous Earth Deck (3)
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1
Q

What is eccentricity?

A

The stretch of the path of the earths orbit around the sun,

  • A circular orbit will result in a much warmer climate
  • An oval shaped orbit will result in a much colder climate
2
Q

What is precession?

A
  • The wobble of the axis of the earth, it moves like a spinning top
3
Q

Stages of the formation of a cyclone?

A
  • Sea temperatures exceed 26.5°C
  • Sea heats air, warm air rises
  • The area of low pressure created causes surface winds
  • These winds create a spinning motion due to the rotation of the earth
  • The air begins to pull around the centre creating an eye
  • Winds rotate outward at the top
  • A dense canopy of clouds form at the top, it usually forms between 12-15km
  • Cumulonimbus clouds form