Dear Authors,

Thank you for submitting the revised version. I find the answers and revision are adequate
and acceptable. However, I have some minor technical correction suggestions herewith.
The manuscript can be published afterward.


My comments Follow. Please upload a reply file too, when you submit it for making the
publication. Thank you.

Abstract: Make it a single paragraph
Page 1, Line 16: “it raises” what raises?
Page 1, Line 22: replace reach with “attain”
Page 3, line 67: “, which” and at other places too
Page 3, Line 7, 21: “representation in models”
Page 3, Line 10: However,
Page 3, Line 11: “due to the case”
Page 3, Line 18: “water vapor”
Page 3, Line 20, 25: “lower tropospheric”
Page 4: line 45 and 55: start the sentence without number and acronym
Page 4: station description can be in a single paragraph. There are several very small paragraphs now.
Page 5, line 74: “showed a low bias”
Page 14, line 61-63: “one could rightly question…” We do not know the exact reasons for the differences (e.g. inclusion of spurious profiles). Therefore, just write there are differences and the agreement is better for ERAI.
Could you also state that why there is no comparison with South Pole measurements? Data are not available or any other reason.
Page 16: line 37: “, respectively”
Page 23, line 24: start the sentence without number and acronym
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Dear Authors,

Thank you for revising the manuscript.
The manuscript is now ready for a publication on ACP.
Other minor language corrections will be taken care of during the proof-reading process.

Best regards:
Jayan