time
concentration of CO2 in air, in ppm
air temperature
relative humidity
molar concentration of CO2 in air
water conc. of CO2 at equilibrium with air
molar CO2 flux
atmospheric pressure
exchange area of the chamber
volume of the chamber
universal gas constant
Henry's constant
molar concentration of CO2 in water
gas transfer velocity
$$Cair(t) = \frac{P \cdot PPM(t)}{R \cdot T(t)}$$
$$F(t) = \frac{dCair(t)}{dt} \cdot \frac{V}{A}$$
$$K_H(T) = K_{H0} \cdot exp(θ \cdot (\frac{1}{T} - \frac{1}{T_0}))$$
$$Cair^*(t) = K_H \cdot PPM(t) \cdot P$$
$$F(t) = k\cdot(C_w - Cair^*(t))$$