Dear Ruifang Xie and co-authors,

I have read the answers you provided to the two reviewers that evaluated your manuscript. Based on that , I invite you to submit a revised version of your work that considers all the points mentioned in your answer. In particular, both reviewers clearly underline the need to extend the description of the methodology (especially as concern the estimation of the physics including the residence time), to add a dedicated section analyzing the results and to deepen the discussion. The revised version will be sent back to the two reviewers.

Thank you so much for your efforts,

Kind regards,

Marilaure Grégoire

Please see my decision.
Marilaure Grégoire

Dear Ruifang Xie and co-authors,

The two reviewers have assessed the revised version of your work and both underlined the significant improvements. They provide additional minor comments that I would like you to consider before publication of your work. I also would like that you provide the link to the datasets that will be stored in Pangaea.

Thank you so much for your efforts,

Kind regards,

Marilaure Grégoire

Dear Ruifang Xie and co-authors,

Please see my decision here above.

Kind regards,

Marilaure Grégoire

Dear Ruifang Xie and co-authors,

I have read the answers you have provided to the last comments of the two reviewers and based on that I am pleased to accept your manuscript for publication in Biogeosciences.

Thank you so much for all your efforts during the reviewing process,

Kind regards,

Marilaure Grégoire

Dear Ruifang Xie and co-authors,
Please see my decision here above
Kind regards,
Marilaure Grégoire