Last homeworkquiz week

1
Last (homework/quiz) week

• Tropical meteorology
• (finished) Hurricanes
• Monsoons
• Deserts
• Interannual variability El Nino / La Nina
• Radiation
• Solar / Terrestrial
• Blackbodies, Kirchoffs law

2
Heat transfer

• Conduction
• Transfer between molecules
• Convection
• Movement of fluid
• Radiation
• Energy travelling in waves between objects
• 26-35 in Ahrens textbook

3
This (homework/quiz) week

• Layers of atmosphere
• Ozone hole
• Greenhouse effect (and radiative equilibrium)
• Global warming

4
Ozone Hole

• Stratospheric ozone blocks solar UV radiation
  from the surface
• Chlorine that reaches the stratosphere (in CFCs)
  can destroy ozone during polar night
• (For Environmental Issues FIG) Sciencepolicy
  success! Scientists discovered hole and its
  cause, international treaty was signed to quit
  producing them
• 334-337 in Ahrens textbook

5
Radiative balance

• 41-42 in textbook
• Incoming solar radiation
• outgoing longwave radiation

6
Atmospheric greenhouse effect

• Greenhouse gases
• Transparent to solar radiation but absorb
  terrestrial radiation
• Selective absorbers
• 35-38 in text
• Incoming solar radiation
• downward radiation from atmosphere
• outgoing longwave radiation

7
Global warming

• People add more greenhouse gases to the
  atmosphere
• More greenhouse effect
• Warmer temperatures
• Global warming
• 402-406 in Ahrens, 406-411 if youre really
  interested

8
Global warming vocabulary

• Feedbacks (competing effects) 391-392 in text
• A change that results when the temperature
  increases that can lead to
• A smaller temperature increase (negative
  feedback) cloud feedback (as described in
  lecture)
• Further increases in temperature (positive
  feedback) ice feedback

9
(More) Global warming vocabulary

• Mitigation (just for FIG)
• Prevention by stopping the cause
• For global warming reducing greenhouse gas
  emissions to decrease the amount of global
  warming