1. THE FATE OF INCOMING SOLAR RADIATION Chapter 23.2

2. What can happen to a sun ray when it enters the atmosphere? Reflection (30%) By Clouds By dust particles By the Surface –Light colored surfaces reflect more –Amount of reflection is called albedo

3. Albedo PAGE 465

4. What can happen to a sun ray when it enters the atmosphere? Absorption (70%) Clouds and atmosphere (20%) –Short waves are absorbed in meso and thermospheres by N 2 and O 2 Surface (50%) –Dark surfaces absorb more

5. Scattering Water and dust in atm. Bend sun rays Makes the sky blue sunsets

6. Average distribution of incoming solar radiation

7. What affects a climate’s temperature? a. Latitude closer to equator =warmer closer to poles= colder

9. b. Altitude high altitudes = ___ temperatures low altitudes = ___ temperatures

10. Water Vapor If a desert and a rain forest are the same temperature during the day, would they be the same temperature at night? Why or why not?

11. c. Water Vapor Water vapor traps heat in the atmosphere..

12. At night, which is cooler—the land or the water?

13. At night, the water is warmer than the land! http://www.cs.indiana.edu/~nigupta/Beach-at-night.jpg

14. d. Coastlines vs. inland Land heats up and cools off much more quickly than the water. Coastal= maritime inland= continental

15. Given that, why can we drive down Lake Shore Drive on a warm spring day and see giant ice sheets on the lake?

16. World mean sea-level temperatures in January

17. Which affect most influences temperature latitude

19. Conduction Molecules touch each other and transfer heat

20. CONVECTION Transfer of heat by circulation within a substance Heat rises

21. RADIATION Transfer of energy (heat) through space by EM waves Sun’s energy reaching earth

22. Mechanisms of heat transfer