Dear Dr. Parker
Thank you for submitting your work to Biogeosciences. I have now considered two reviews of your manuscript and two reviews and I believe your work is publishable if you carefully address the reviewers comments as you have indicated. In particular, it is important you make the objectives of the paper clearer as you note.

I note you have note addressed the following comment from reviewer 2

"As a general point, I find discussion centered on changes in DO based on tempera- ture often inadequate as the obvious effect of temperature effect on DO solubility is neglected. An increase in night time DO is expected if water temperature falls. Fram- ing the discussion in terms of %DO saturation is much more useful to examine the interplay of R and k but in this instance makes it more convoluted to then talk about change in DO = 0. Of course if temperature doesn’t change (nor atmospheric pressure or salinity to be pedantic) then change in DO = 0 would correspond to a change in %DO saturation of 0."

Please address this in your revision. When undertaking your response to the reviewers please make sure you paste every comment from the reviewers and then explain how you have addressed it in the revision document.

I may ask one of the reviewers to check that you have responded satisfactorily to their comments


Regards
Perran

Dear Dr. Parker
Thank you for addressing the reviewers comments. Reviewer 2 is now satisfied with your revisions and I will accept the manuscript.
Regards
Perran