Dear Stephanie, dear authors,
many thanks for addressing the comments by the two reviewers and supplying a revised version of your paper.

I have some major comments that still needs to be addressed:
- Please clarify and correct your results of the water samples, specifically referring to S+ as a “cation”. S does not form a cation in aqueous solutions, but anions (SO2, SO3, SO4).

- The discussion of the occurrence, formation and processes of buried ice needs to be extended and sharpened to extend beyond the local/regional Bylot Island perspective. Please discuss and distill, especially with available literature from Russia, Alaska (similarities of occurrence, processes).

Format issues
-Please check and improve the font (size and format) of letters in your figures. For example, “Mittimalik” is not readable with 100%. Also, please include sub labels of figures (a,b,c) and refer to these in your figure captions and in your text. Please make sure that the font sizes of legends and axis labels are large enough (should be readable with 100% view).

-Please check and improve the language again thoroughly. I have made some few suggestions in the text.

- Why did you choose a supplement instead of appendix for additional method description? Appendices are part of the manuscript whereas supplements are published along with the manuscript. Since you are referring to a method, I suggest to use the appendix format, since it makes it easier to read. Equations, figures and tables in supplements should be numbered as (S1), Fig. S5 or Table S6. Sections are numbered as S3, S3.1, and S3.1.1 (see also:https://www.the-cryosphere.net/for_authors/manuscript_preparation.html)
Please find my commented version attached.

I look forward to your revised version,

Sincerely,
Julia

Dear authors,
many thanks for considering all my suggestions- your manuscript is ready for final publishing. Please check and correct one minor technical detail- please check the numbering of figures, tables thoroughly again.
The equations in your appendix need to be labeled with capital letters, for example A1, B1, etc. Appendix C starts with equation (2), instead of C1.
For details, see: https://www.the-cryosphere.net/for_authors/manuscript_preparation.html
Sincerely,
Julia