1. 7.1 Insolation
Unit 7: Climate
April 14, 2012
Sanders

2. Insolation
Unit 7: Climate

3. Insolation
INcoming
Unit 7: Climate

4. Insolation
INcoming
SOLar
Unit 7: Climate

5. Insolation
INcoming
SOLar
radiATION
Unit 7: Climate

6. Insolation INcoming SOLar radiATION
Insolation is the portion of the the sun’s output of electromagnetic radiation that is received by the Earth at the outermost part of our atmosphere.
Unit 7: Climate

7. Unit 7: Climate

8. Unit 7: Water Cycle and Climate
Intensity
May 14, 2019
Unit 7: Water Cycle and Climate

9. Unit 7: Water Cycle and Climate
Intensity
The intensity of insolation is the relative strength of the sun's radiation that reaches a specific area of Earth in a specific amount of time.
May 14, 2019
Unit 7: Water Cycle and Climate

10. Hourly Changes May 14, 2019 Unit 7: Climate
Intensity of insolation varies with time of day.
May 14, 2019
Unit 7: Climate

11. Seasonal Changes
Unit 7: Climate

12. Seasonal Changes
In the summer, the maximum amount of sunshine is about 15 hours on June 21.
Unit 7: Climate

13. Seasonal Changes
In the summer, the maximum amount of sunshine is about 15 hours on June 21.
In the winter, the maximum amount of sunshine is about 9 hours on December 21.
Unit 7: Climate

14. Seasonal Changes
In the summer, the maximum amount of sunshine is about 15 hours on June 21.
In the winter, the maximum amount of sunshine is about 9 hours on December 21.
Unit 7: Climate

15. Solar Output
Unit 7: Climate

16. Solar Output Intensity of insolation varies with wavelength.
Unit 7: Climate

17. Solar Output Intensity of insolation varies with wavelength.
The maximum intensity of insolation occurs in the range of wavelengths of visible light.
Unit 7: Climate

18. Solar Output Intensity of insolation varies with wavelength.
The maximum intensity of insolation occurs in the range of wavelengths of visible light.
Most incoming ultraviolet radiation and other short wave radiation are absorbed by Earth's atmosphere.
Unit 7: Climate

19. Solar Output Intensity of insolation varies with wavelength.
The maximum intensity of insolation occurs in the range of wavelengths of visible light.
Most incoming ultraviolet radiation and other short wave radiation are absorbed by Earth's atmosphere.
Nearly all ultraviolet radiation is absorbed in Earth's upper atmosphere by ozone (03), a form of oxygen gas.
Unit 7: Climate

20. Unit 7: Water Cycle and Climate

21. Insolation
Unit 7: Climate

22. Insolation
The angle of INSOLATION affects the energy absorbed by the Earth. The insolation reaching Earth's surface is different from the insolation entering Earth's upper atmosphere.
Unit 7: Climate

23. Insolation
The angle of INSOLATION affects the energy absorbed by the Earth. The insolation reaching Earth's surface is different from the insolation entering Earth's upper atmosphere.
Since the atmosphere is mostly transparent to visible light, it transmits most of the visible light from the sun.
Unit 7: Climate

24. Reaching the Earth’s Surface
Notice the clouds are scattering the sun’s light.
May 14, 2019
Unit 7: Water Cycle and Climate

25. Reaching the Earth’s Surface
When clouds are present, much of the incident solar energy is reflected back into space.
May 14, 2019
Unit 7: Water Cycle and Climate

26. Reaching the Earth’s Surface
When clouds are present, much of the incident solar energy is reflected back into space.
However, some of it, including some visible light, is reflected to the atmosphere or toward Earth's surface.
On either side of the sun, you can see what appear to be rainbows. ->
These are called sun dogs. They are inverse rainbows that are reflected from the upper atmosphere clouds. There are an angle of 22 degrees.
May 14, 2019
Unit 7: Water Cycle and Climate

27. Unit 7: Climate

28. Unit 7: Climate

29. Unit 7: Climate

30. Unit 7: Climate

31. Unit 7: Climate

32. Unit 7: Climate

33. Unit 7: Climate