Dear Mr Eckhardt et al.,

I would like to thank you for responding to the individual points raised by three anonymous reviewers and particularly the critical points you intend to address in the revised manuscript. Therefore, I kindly ask you to upload the revised version (with track changes indicating where you changed what and how). Following this, I will do a final check over the manuscript.
The major revisions should in this case not demotivate you, and this has mainly to do with the two-step review process during which the authors are asked to respond to the reviewers comments while it is not essential to upload a revised version yet. Some authors do some don't. Anyway, as I have not seen a revised version from you while you refer to such document in your response I would like to see this first before final acceptance of the paper.

with kind regards

Lutz Merbold

Dear Tim Eckhardt

thank you for providing the revised manuscript which has clearly improved from previous versions and the paper is certainly a great contribution to BG as well as to the existing knowledge on C turnover in high latitudes. Following some minor technical corrections the manuscript can now be accepted for final publication in BG.

all the best

Lutz Merbold