Dear Authors,

Thank you for submitting your manuscript for publication in the Biogeosciences Journal. Your manuscript has been reviewed by two referees.

Both referees agreed that the modeling approach discussed in your paper is valuable and the results of your study are interesting. At the same time, the reviewers highlighted a number of areas that would need to be improved and made a number of comments that would need to be addressed before your manuscript can be further considered for publication in Biogeosciences.

The Introduction section could be enhanced by a more clear description of the objectives of the paper and the novel aspects of this work. In the methods section, the referees suggested providing more information on the modeling approach, specifically the sediment model and how it is linked to the water column model.

The referees recommended to provide more information on the role of temperature (as well as its variability within the system) and to discuss the biological/biogeochemical reaction rates and their relation to transport rates in the specific system. Referee #1 also suggested running a model simulation with constant flow. These additional model runs will need to be included and discussed in a revised manuscript. More discussion on the source of organic matter that is fueling the enhanced release of phosphorus in summer would allow to better understand biogeochemical cycling in this system and its seasonal variability.

Your responses to the referees’ comments will need to be incorporated in a revised version of the manuscript that will be reconsidered for publication in Biogeosciences. Please refer to the reviewers’ comments and your answers for the revisions.

I look forward to receiving your revised manuscript.

Maria Tzortziou
Editor, Biogeosciences

Dear Dr. Minaudo,

Thank you for submitting your revised manuscript and response to reviewers' comments. I have read your revised version and I am happy to inform you that your manuscript is now accepted for publication in Biogeosciences. The language quality of the final manuscript must be further improved. Please, work with the Biogeosciences copy-editing department for further language editing.

Thank you for submitting your manuscript for publication in the Biogeosciences Journal.

Best regards,

Maria Tzortziou,
Associate Editor