1. Exercise Interpreting Radiosondes Mixing height calculator
Using HYSPLIT
Flowchart of good/poor air quality
Section 10 Exercise

2. Exercise – Interpreting Radiosondes (1 of 5)
Instructions
Determine the following for each day
850-mb temperature
Inversions
Afternoon mixing height based on morning temperature sounding and the given forecast maximum temperature
Afternoon mixing height on afternoon sounding
Answer the following questions
Did the mixing height estimate from the morning sounding match the mixing height determined from the afternoon sounding?
How would you expect morning and afternoon air quality concentrations to compare based on vertical mixing alone?
How would air quality concentrations compare between the days?
Time: 15 minutes
Section 10 Exercise

3. Exercise – Interpreting Radiosondes (2 of 5)
Day 1 morning sounding
– forecasted maximum temperature: 33 °C
Section 10 Exercise

4. Exercise – Interpreting Radiosondes (3 of 5)
Day 1 afternoon sounding
Section 10 Exercise

5. Exercise – Interpreting Radiosondes (4 of 5)
Day 2 morning sounding
– forecasted maximum temperature: 31 °C
Section 10 Exercise

6. Mixing height calculator
Section 10 Exercise

7. Exercise – Interpreting Radiosondes (5 of 5)
Day 1 afternoon sounding
Section 10 Exercise

8. Exercise – Using HYSPLIT
Instructions: Run backward HYSPLIT trajectories at various levels to determine possible transport sources. Experiment with the different options of the program (i.e., vertical motion scheme).
Time: 15 minutes
Section 10 Exercise

9. Exercise – Flowchart
Instructions: Fill in a flowchart to identify conditions for both good and bad air quality.
Time: 15 minutes
Section 10 Exercise

10. Exercise – Flowchart Good AQ
Upper-level pattern
Vertical motion
Stability
Surface pressure pattern
Inversion strength
Sky cover
Amount of photochemistry
Wind strength
Amount of horizontal dispersion
Amount of vertical mixing
Section 10 Exercise

11. Exercise – Flowchart Poor AQ
Upper-level pattern
Vertical motion
Stability
Surface pressure pattern
Inversion strength
Sky cover
Amount of photochemistry
Wind strength
Amount of horizontal dispersion
Amount of vertical mixing
Section 10 Exercise

12. Exercise – Map Discussion
Instructions: Have a local forecaster lead a map discussion, focusing on the features discussed in this section.
Time: 45 minutes
Section 10 Exercise