4. Potential Temperature and Mixing Height

Try these first

1. 1.

   Define atmospheric stability.

   Hint

   Think about how temperature affects rising air.

2. 2.

   What is adiabatic cooling?

   Hint

   Remember the definition of adiabatic processes.

3. 3.

   What is the dry adiabatic lapse rate?

   • -0.008 °C/m
   • -0.0098 °C/m
   • -0.010 °C/m

   Hint

   Remember the value associated with dry adiabatic processes.

4. 4.

   True or False: Mixing height is influenced by the source height.

   • True
   • False

   Hint

   Think about how source height interacts with meteorological parameters.

5. 5.

   Given a situation where the environmental lapse rate is less than the dry adiabatic lapse rate, explain the stability of the atmosphere and its implications for pollutant dispersion.

   Hint

   Connect stability types with dispersion patterns.

6. 6.

   Calculate the potential temperature of an air parcel at 300 K and pressure of 800 hPa when adjusted to sea-level pressure of 1013 hPa.

   Hint

   Refer to the potential temperature formula and its components.