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The Earth's Energy Balance Presentation.pptx

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Sphamandla Mnyandu
Sphamandla Mnyandu

The document discusses the causes of seasons on Earth. It explains that the Earth's axis is tilted at an angle of 23.5 degrees and that its revolution around the sun and rotation on its axis lead to seasonal changes in solar insulation between hemispheres. Specifically, it notes that summer occurs in the hemisphere that is tilted toward the sun, receiving more direct sunlight and having longer days, while winter happens when a hemisphere is tilted away from the sun with less direct sunlight and shorter days. It provides examples that on June 21 the Northern Hemisphere experiences summer and the Southern Hemisphere winter, and this is reversed on December 21.

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THE EARTH'S ENERGY BALANCE THE SIGNIFICANCE OF THE EARTH'S AXIS & REVOLUTION AROUND THE WORLD.
LEARNING OBJECTIVES List the causes of seasons. Define revolution of the Earth. Demonstrate the rotation of the Earth using a Globe. Differentiate summer and winter characteristics. Value the solstice and the dates where the Sun directly overhead the Equator. Create a Globe.
WHAT CAUSES SEASONS?
WHAT CAUSES SEASONS? Revolution it is whereby the Earth revolve around the Sun for 365/366 days. Rotation it is whereby the Earth rotate on it own axis for 24 hours. Tilt it is whereby the Earth is titled 23,5 degrees from the perpendicular. Sphericity it is the ball like shape of the Earth that produces uneven insolation.
WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE?
WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE? More heat is received in summer than in winter. The Earth axis is tilted. It is the summer season each hemisphere that is tilted towards the Sun. In summer we have longer daytime. In winter when each hemisphere is titled away from the Sun, it receives less incoming radiation. In winter we have shorter daytime.
WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE The Sun is directly overhead the Equator, twice a year, it is on the 21 of March and 23 of September. All places on the Earth have 12-hour day and 12-hour night. Both hemisphere get equal solar radiation.
WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE? The Northern Hemisphere is tilted towards the Sun on the 21 of June. The longer days and shorter nights causes the Northern Hemisphere to experience summer season. The Southern Hemisphere is tilted away from the Sun, causing winter season. The shorter days and longer nights are experienced during this season. On December 21 the reverse happens with long days, short nights and summer in the Southern Hemisphere. The Northern Hemisphere has long nights, short days and winter.
THE END
REFERENCE Sutherland, C. (2013) Oxford in search of geography. Cape Town: Oxford University Press Southern Africa. Singh, M., Pillay, V. and Chandrabhaon, S., 2020. EXCEL in Geography.

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The Earth's Energy Balance Presentation.pptx

  • 1. THE EARTH'S ENERGY BALANCE THE SIGNIFICANCE OF THE EARTH'S AXIS & REVOLUTION AROUND THE WORLD.
  • 2. LEARNING OBJECTIVES List the causes of seasons. Define revolution of the Earth. Demonstrate the rotation of the Earth using a Globe. Differentiate summer and winter characteristics. Value the solstice and the dates where the Sun directly overhead the Equator. Create a Globe.
  • 4. WHAT CAUSES SEASONS? Revolution it is whereby the Earth revolve around the Sun for 365/366 days. Rotation it is whereby the Earth rotate on it own axis for 24 hours. Tilt it is whereby the Earth is titled 23,5 degrees from the perpendicular. Sphericity it is the ball like shape of the Earth that produces uneven insolation.
  • 5. WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE?
  • 6. WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE? More heat is received in summer than in winter. The Earth axis is tilted. It is the summer season each hemisphere that is tilted towards the Sun. In summer we have longer daytime. In winter when each hemisphere is titled away from the Sun, it receives less incoming radiation. In winter we have shorter daytime.
  • 7. WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE The Sun is directly overhead the Equator, twice a year, it is on the 21 of March and 23 of September. All places on the Earth have 12-hour day and 12-hour night. Both hemisphere get equal solar radiation.
  • 8. WHAT ARE SEASONAL EFFECT ON THE ENERGY BALANCE? The Northern Hemisphere is tilted towards the Sun on the 21 of June. The longer days and shorter nights causes the Northern Hemisphere to experience summer season. The Southern Hemisphere is tilted away from the Sun, causing winter season. The shorter days and longer nights are experienced during this season. On December 21 the reverse happens with long days, short nights and summer in the Southern Hemisphere. The Northern Hemisphere has long nights, short days and winter.
  • 10. REFERENCE Sutherland, C. (2013) Oxford in search of geography. Cape Town: Oxford University Press Southern Africa. Singh, M., Pillay, V. and Chandrabhaon, S., 2020. EXCEL in Geography.