Dear authors

Thank you for your answers to the comments by the reviewers. Based on the evaluation of the reviewers as well as my own reading of the various material, I very much like to encourage you to submit a suitably revised version of your manuscript.

The review comments are quite clear. Please take into account the suggestions by the three reviewers and add clarifying text to your manuscript as suggested by the reviewers and following your answers to the comments. In particular, clarification on uncertainties related to the estimates for the drought year 2006 will be required in addition to clarifying text on other issues such as on DOC transport, etc.

Please provide together with the revised manuscript and your answer, a manuscript version highlighting the changes compared to the originally submitted version. This will ease the further review and editorial process.

I plan to send the manuscript to one of the reviewer for a hopefully final evaluation.

Thank you very much for submitting your work to Biogeosciences and I am looking forward to receive your revised manuscript.

With kind regards,

Fortunat Joos

Dear Authors

thank you for revising your manuscript and carefully considering the review comments. I am happy to accept your revised manuscript for publication in Biogeosciences. This decision is based on the referee comments on the originally submitted manuscript, the informal comments by one of the reviewers on the revision, and my own reading of your manuscript, reply and revisions. The reviewer informed me informally by e-mail that he/she is satisfied with the revision.

Thank you very much for submitting your work to Biogeosciences.

Yours sincerely,

Fortunat Joos