1. Measurements taken on May 7th and 8th By Addison Liming
Initial Results of Temperature, Humidity, Pressure, and CO2 Concentrations measured in Spanish Springs over two sunrises
Measurements taken on May 7th and 8th
By Addison Liming

2. Purpose
To measure changes in temperature, humidity, pressure, and CO2 concentrations as the sun rises
To determine characteristics of the atmospheric boundary layer near the surface as it transitions from night into day
To track changes in CO2 concentration near the surface as it relates to surface heating and consequent boundary layer mixing in the early morning

3. Theory
CO2 concentrations are expected to be a maximum in the morning and to reach an average minimum in the afternoon when the boundary layer is more likely to be better-mixed

4. Methods

5. Pressure (hPa)
Pressure
Time

6. Temperature (ºC)
Temp
Time

7. Dew Point Temperature (ºC)

8. Relative Humidity (%)

9. CO2 Concentrations (ppm)

10. Preliminary Conclusions
The experiment is a work in progress!
CO2 concentrations dropped from the morning of May 7th to the morning of May 8th
Data taken over the entire day for a long period of time would be beneficial to understanding the subtleties of changes in CO2 during the diurnal transition
A measurement location which is not sheltered from the rising sun might provide more sensitive results?