3.4. Morning Temperature Recovery and Fog Lifting

Try these first

1. 1.

   What causes warm air to rise?

   Hint

   Think about which air is lighter.

2. 2.

   What does the lapse rate describe?

   Hint

   It's a rate related to height.

3. 3.

   What happens to the air above a heated surface?

   • It cools down.
   • It remains the same temperature.
   • It rises.

   Hint

   Remember which air is lighter.

4. 4.

   True or False: Temperature inversions can increase air pollution levels.

   • True
   • False

   Hint

   Think about the stability of the air during an inversion.

5. 5.

   Considering typical lapse rates, predict what would happen to a pollutant released at ground level during day vs. night. Discuss the stability of air in both scenarios.

   Hint

   Think about the relationship between temperature changes and air stability.

6. 6.

   Using the information about fog lifting, calculate the time it would take for fog to lift if the temperature rises from 5°C to 20°C over one hour. Discuss factors influencing this.

   Hint

   Remember the conditions that encourage evaporation.