1. explore • inspire • engage

2. The Warmer the Object, the More Heat Emitted
Objects above absolute zero emit EM radiation (usually IR)
Stefan-Boltzmann Law tells how much energy emitted

3. Stefan-Boltzmann Law in LSOP Activity

4. Stefan-Boltzmann Law in LSOP Activity

5. Modeling Planetary Energy Balance
Calculate theoretical temperature of a planet with some simple math
Discover that Earth would be frozen without the greenhouse effect
Science Topics
Blackbody Radiator and the Stefan-Boltzman Law
Conservation of Energy (Energy In = Energy Out)
Albedo

6. Let’s add some atmosphere…
How will this change the behavior of our model?

7. LSOP Model - Atmosphere

8. Turn 1 – Radiate Phase

9. Turn 1 – Absorb Phase

10. Change – Initial State to Turn 1

11. Net Energy Budget: Energy In – Energy Out

12. Change from Initial State to Turn 1
Energy In – Energy Out = 3 – 1 = +2 +2 -1 +1

13. Turn 1 – Radiate, then Absorb

14. Turn 2 – Radiate, then Absorb

15. Turn 3 – Radiate, then Absorb

16. Graph of Spinup to Equilibrium

17. What is “wrong” with this model?

18. Turn 4 – Radiate, then Absorb

19. Turn 5 – Radiate, then Absorb

20. Net Energy Budget?

21. Net Change After 2 Turns of Night

22. Spinup to Dynamic Equilibrium

23. Show Movies
Model Spinup
Equilibrium
Spinup – with day/night cycle
Dynamic Equilibrium

24. LSOP Model – No Atmosphere

25. Turn 1 – Radiate Phase

26. Turn 1 – Absorb Phase

27. Turn 2 – Radiate Phase

28. Turn 2 – Absorb Phase

29. Turn 3 – Radiate Phase

30. Turn 3 – Absorb Phase

31. Turn 4 – Radiate Phase

32. Turn 4 – Absorb Phase

33. Graph of “data” from model run “experiment”

34. Turn 4 – Radiate Phase - Night

35. Turn 4 – Absorb Phase - Night

36. No Atmosphere Spinup to Equilibrium