1.2. Dispersion Model Parameters - Part 1

Try these first

1. 1.

   What is the definition of mixing height?

   Hint

   Think about where air and pollutants interact.

2. 2.

   What does stability in the atmosphere refer to?

   Hint

   Consider how rising air can either rise freely or be inhibited.

3. 3.

   What is the adiabatic lapse rate for dry air?

   • 0.0098 °C/m
   • -0.0098 °C/m
   • 9.8 °C/km

   Hint

   Remember it refers to cooling as air rises.

4. 4.

   True or False: Mixing height is constant regardless of atmospheric conditions.

   • True
   • False

   Hint

   Consider how mixing height changes with seasons or weather events.

5. 5.

   Given an air parcel with an initial temperature of 30°C at sea level, calculate the temperature at a height of 2 km using the adiabatic lapse rate.

   Hint

   Don't forget to convert km to meters before calculation!

6. 6.

   Describe how the concept of mixing height can impact urban planning in areas prone to air pollution.

   Hint

   Consider how vertical space in urban environments contributes to air quality.