Figure 7.

Model simulations of the effect of eCA on surface boundary-layer chemistry during CO₂ uptake. (A, T. pseudonana [Tp]; B, T. weissflogii [Tw]). The effect of eCA on the CO₂ profiles is shown at two eCA activities, the lower at a magnitude similar to f_c-BL and the higher approximating maximal expression levels. k_sf values used in the simulations are indicated. Analytical approximations for surface CO₂ concentrations obtained using Equation 12 are indicated with white circles, agreeing well with the numerical solution.