Dear authors,

Both referees agree that the reported experiment is of interest to the readership of HESS, but also raised numerous technical concerns about the assumptions, the details and the analyses of the experimental results.

I would like to invite you submit a revision with point-by-point responses to review comments.

Best wishes
Bob Su

Dear authors,
Thank you very much for your responses to the review comments.
One of the reviewers (#2) has pointed out the authors should acknowledge the importance of vapor flow in arid and semi-arid area, and take this into account. The reviewer has provided some relevant literature for you to study.
Given the fact that your experiment has taken place, I would suggest that you add a section to discuss the uncertainty caused by not considering vapor flow in your collected data by referring to similar studies.
An additional step is to indeed collect a set of new data to prove or disprove what you have suggested that vapor flow is not important in your experiment.
Best wishes
Bob Su

Dear authors,
Thank you very much for your further revision. I am happy to accept you manuscript for publication at HESS.
Best wishes
Bob Su