Dear Authors:

Thank you for providing the elaborate author comments in response to the referee comments. I confirmed that the authors proposed appropriate amendments to the referee suggestions, leading to high clarity of the manuscript. For example, I expect that presentation quality of Figures 2 and 3 are improved in the revised manuscript. It is good for readers to show journal information of Ramsay et al. (2020, Atmospheric Chemistry and Physics Discussion), because the paper gives fine description of the atmospheric measurement at ATTO site. Finally, I suggest that the manuscript would be reconsidered after major revisions, on the basis of the in-depth open discussion.

Dear authors:

Thank you for your great efforts for preparing the revised manuscript. No additional comment was posted to your manuscript since you provided author comments. Both referees gave positive evaluations to your manuscript (e.g., ‘good’ scientific quality and significance), and I confirmed that you made enough amendments in the revised manuscript on the basis of the referee comments. The new section, ‘3.6 Error in observed and simulated fluxes’ and revision in Discussion resulted in improved scientific quality. Finally, I recommend that the manuscript is acceptable for publication.