The short video labelled Steam plant chimney, was recorded on March 13, 2021, looking south from the McLennan Physical Laboratories at the Central Steam Plant Chimney, just across Ursula Franklin Street. The weather conditions on March 13, 2021, at the time the video was recorded are in the image below the video.

a. Sketch the temperature as a function of altitude in the troposphere (altitude on the y-axis). Add lines indicating the dry adiabatic lapse rate and saturated adiabatic lapse rate. Label the regions where a temperature profile would create a stable, neutral, or unstable atmosphere. Briefly explain why they are stable, neutral, and unstable, and under what situations you might find these atmospheric conditions.

b. Describe how steam coming from a chimney would behave under stable, neutral, and unstable atmospheric conditions. Assume constant horizontal winds. Provide a sketch of temperature vs. altitude and what the smokestack would look like for each condition.

c. Given what you see in the video and the meteorological information provided, explain whether you believe the video shows a stable, unstable, or neutral atmosphere. (Note that there isnt a single obvious answer to this question, so marks will be given based on your logical reasoning.)

Question 1: Steam Plant Chimney video Weather information at the time the steam plant video was recorded: Conditions at UTC time 14:55 on 13 March 2021 Temperature and Humidity Temperature -2.3 C Windchill -4.8 C Heat Index -2.3C Solar Radiation 504 W/m2 Rainfall Rainfall Today 0.0 mm Rainfall This Month 1.4 mm Rainfall Last Hour 0.0 mm Wind Dew Point Humidity Apparent Temperature Evapotranspiration Today -10.1 C 55% -6.6 C 0.61 mm Rainfall Rate Rainfall This Year Last rainfall 0.0 mm/hr 29.0 mm 2021-03-12 01:55 4.5 m/s 1.8 m/s Wind Speed (gust) Wind Bearing Wind Speed (avg) Beaufort F2 311 NW Light breeze Pressure Barometer 1008.91 mb Falling slowly -0.33 mb/hr Question 1: Steam Plant Chimney video Weather information at the time the steam plant video was recorded: Conditions at UTC time 14:55 on 13 March 2021 Temperature and Humidity Temperature -2.3 C Windchill -4.8 C Heat Index -2.3C Solar Radiation 504 W/m2 Rainfall Rainfall Today 0.0 mm Rainfall This Month 1.4 mm Rainfall Last Hour 0.0 mm Wind Dew Point Humidity Apparent Temperature Evapotranspiration Today -10.1 C 55% -6.6 C 0.61 mm Rainfall Rate Rainfall This Year Last rainfall 0.0 mm/hr 29.0 mm 2021-03-12 01:55 4.5 m/s 1.8 m/s Wind Speed (gust) Wind Bearing Wind Speed (avg) Beaufort F2 311 NW Light breeze Pressure Barometer 1008.91 mb Falling slowly -0.33 mb/hr