I would like to thank the reviewers for the very thorough job they put in the revision of this manuscript: the revised version has been considerably improved thanks to their input. The comments made are very clearly and stated in detail, and this makes it easy for me to complete the review without their further intervention.
The authors have recalculated the molar fractions derived from the FTIR introducing the T discrepancy correction, and calculated the dry mole fractions, following the line suggested by R1: consequently re-calculated the gradient fluxes, taking into account the stability dependency of the diffusivities. They have also added considerable new material regarding the methods, adding a new sub-section and modifying the existing ones with new details, as suggested by both reviewers; this greatly improved the independence of the paper, that in the former version relied too heavily on a related paper for setup and methods explanations.
I think a considerable amount of work has been done to improve the original version of the MS, and I believe the answers they provided are satisfactory. The MS was changed according to the comments, or valid explanations were provided to respond to the comments when changes were not applied.