Dear Antoine Guillemot,

Thank you for providing clear and careful responses to the referees' comments. Based on the overall encouraging reviews and your replies, I want to invite you to submit a revised version of your manuscript for further review and editorial consideration.

As you prepare your revised files, please note that even if your rebuttal letters and their corresponding supplements mention "the new manuscript with highlighted main changes", such file has not been available so far and can be uploaded from now on only.

***

Concerning the following points raised by the referees:

-Both referees coherently asked to demonstrate the temporal evolution of modeled resonance frequencies, which you found to be out of scope as too complex. I would look forward to the referees' opinion on this point.

-Moving GPR and active seismic figures (Figs. 5,6,7) was suggested by both referees. I am not sure if the intended meaning is Supplementary Information or Appendix. Anyways, I certainly feel that your 19 proposed figures are too much for one paper to show. So moving back some materials could be helpful. The appendix is a solution if you really refer to these figures a lot. Otherwise, to SI.

Other:

-I also see that these figures (Figs. 5, 6) have some unnecessary boundaries.

-Fig 7. (b) I could not follow how to read RMS from the color since there is no guiding color bar or alike.

-Your Interactive comment with [Fig 1. Figure 16],
has a caption ["(b) the corresponding measurements"], which needs more context. Specifically, there are temperature data and boxes. Please explain/repeat what do the boxes show. If viewed as a stand-alone illustration, it is not obvious why the two "Melting periods" correspond only to spring, and summer has no more melt. Should it be a "Snow-melting period?"

-Also, please specify that this figure shows Lauchard.

-[Fig. 2. Figure 19] & [Fig. 3.] have grey, blue and red rectangles. Please explain/repeat what do they represent to make the caption stand-alone.

- Formally speaking, many of your illustrations are not following the guidelines of TC. Specifically (I copy-and-paste from web-submission-instructions): "For maps and charts, please keep colour blindness in mind and avoid the parallel usage of green and red. For a list of colour scales that are illegible to a significant number of readers, please visit ColorBrewer 2.0."- I do not insist on changing rainbow colormap to another one in this manuscript. However, please let me note for your future studies that more and more journals strongly discourage its usage, because many papers on human vision explain how misleading it is, especially for color-blind people.

Sincerely yours,
Evgeny Podolskiy

Dear Antoine Guillemot,

Thank you for submitting a revised version of your paper.

Please allow me to apologize for the delay in sending a decision on your revised manuscript. We have recently received a report from one referee, and we were waiting for one more referee to send comments. However, to avoid any further delays in the process and considering one referee's positive feedback, I would like to proceed and invite you to submit a corrected version.

As you would see, overall, the referee was satisfied with your responses and modifications. However, apparently, you still have not addressed the previous request (by this and another referee) to reduce a large number of figures in the main text by partly moving them to SI. Please also check if your numbering notation is not confusing in this regard (e.g., TC uses Fig. A1, Fig. B1, etc.).

Some other minor editorial corrections are also listed below (*).

Sincerely,
Evgeny Podolskiy

(*)

[Lines 16 - 17]
I suggest to re-write this phrase (by correcting punctuation and making it less wordy) as:

"Here, we analyse the spectral content of ambient noise to study the modal sensitivity of rock glaciers, which is directly linked to the system's elastic properties."

[Line 20]
hot periods -> "warm periods" seems to be more appropriate for the temperature range described.

[Line 40]
high resolution observations
-> {add a hyphen}
high-resolution observations

[Line 50]
here and elsewhere, please use
[e. g.] as [e.g.,] {with a comma}

[Lines 54-56]
This phrase is difficult to follow due to its length, and I suggest to split it into two for clarity.

"Passive seismic monitoring systems have the potential to overcome these difficulties on debris slope (Samuel Weber et al., 2018; S. Weber et al., 2018), glaciated (Mordret et al., 2016; Preiswerk and Walter, 2018) and permafrost environments (James
55 et al., 2019; Köhler and Weidle, 2019; Kula et al., 2018), also recently illustrated on the Gugla rock glacier (Guillemot et al., 2020)."

[Line 87]
Presentation of the sites
-> {I suggest more straightforward}
Study sites

[Line 104]
The long term survey
->
The long-term survey

[Line 105]
one meter, (Marsy et al., 2018)).
-> no need for the comma.

[Line 107] here and elsewhere
at around 1m/yr
-> {around is colloguial}
at approximately 1_m/yr

[Line 118]
ERT surveys
- ERT was defined so far.

[Line 134]
please, indicate the eigenfrequency of these sensors

[Lines 138-141]
usage of "although" in this phrase seems awkward. Please rephrase for your intended meaning. "...and despite our frequent site visits for sensor releveling"?

[Line 139] if you stick to
in order to releveling sensors
->
... to relevel sensors

[Line 162]
geophysical campaign from seismic refraction
->... {for} seismic refraction?

[Line 174]
variations (Snieder ... 2015, for a review).
->
... (for a review, see Snieder ... 2015).

[Line 290]
the paragraph has an unnecessary indent.

[Line 306]
I do not understand what is meant by "(see 0)". Please check.

(Figure 5(2))
As the referee also pointed, TC does not use such referencing to Figures, and it should be corrected here, in the caption, and the figure labels.

[Line 328]
The Vs profiles displayed in Figure 7b shows
-> show {plural}

best fitting models
-> best-fitting models

[Line 362]
bedrock, (Hausmann et al., 2012)),
-> no need for the comma.

[Line 368]
(see 0 for Laurichard and 0 for Gugla)
"see 0"? I do not follow this.

[Line 375]
((CREALP, 2016)),
remove redundant parenthesis

[Line 440]
(i.e.
->
(i.e.,

[Line 493]
temperature reaches 0C and stay
- stays {plural}
Please, also recheck your intended meaning. I am not sure what do you mean by temperature stays during a zero-curtain period; something is missing.

[Line 530]
a 2D mechanical modeling of rock glaciers, which fit
->
... which fits {plural}

[Line 535]
investigations, as
->
investigations, {such} as

Line 549
CREALP (see weblink in references)
-I failed to find such a link. Please check.

[Line 606] and similar below
Fig5(1b)- see my earlier comment

Line 885
(see 1b)
- I could not follow where and what this is.

Fig 12
label (c) drifted to the left subplot (b) and has to be placed appropriately.