1. Atmospheric Energy Current Weather: Hurricane Dorian Energy Essentials
Energy Balance in the Troposphere  
Latent Heat Transfer
Temperature
For Next Class: Read Chapter 4: pp

3. Chapter 3, Figure 3.16 Labeled

7. Energy Pathways
Figure 4.1

8. Energy Pathways Insolation input Scattering Refraction
All radiation received at Earth’s surface – direct and indirect
Scattering
Changing direction of light’s movement, without altering its wavelengths
Refraction
Change in speed and direction of light

9. Insolation at Earth’s Surface
Figure 4.2

10. Discussion
What is albedo and why is it important?

11. Albedo
Figure 4.5

12. July and January Albedos
Figure 4.6

13. Heat Transfer Conduction Convection Advection Radiation
Molecule-to-molecule transfer
Convection
Energy transferred by movement
Advection
Horizontally dominant movement
Radiation
Energy traveling through air or space

14. Chapter 4, Figure 4.8 Labeled

15. Convection vs. Advection
Convection – vertical transfer of heat energy
Advection – horizontal transfer

16. Chapter 4, Figure 4.9 Labeled

17. Discussion
When does the highest temperature of a day typically occur and why?

18. Daily Radiation Curves
Figure 4.14

19. Surface Energy Budget
Figure 4.15

20. Simplified Surface Energy Balance
NET R =
+SW (insolation)
–SW (reflection)
+LW (infrared)
–LW (infrared)
Figure 4.16

21. Radiation Budgets
El Mirage, CA
Pitt Meadows, BC
Figure 4.20

22. Latent Heat Transfer Phase Changes of Water
Heat absorbed from environment during changes to higher energy states
melting, evaporation, sublimation
Heat released to environment during changes to lower energy states
freezing, condensation, deposition
© AMS

23. 680 cal/g required
80 cal/g required
cal/g required
80 cal/g released
cal/g released
680 cal/g released

24. Chapter 4, Figure 4.24 Labeled

25. Discussion What is highest air temperature ever recorded? Where?
Lowest temperature? Where?
At what temperature are Celsius and Fahrenheit equal?