Dear Sara-Patricia Schlenk and co-authors,
Thank you for your thorough response to the referees' comments. I am overall happy with your outlined changes and would like to invite you to submit a revised version for consideration.
Based on the responses, it was not always completely clear whether you intended to implement some of the discussion points raised in your replies. I therefore iterate here for clarity where it is necessary to include your response to the referees specifically:

Please add the following to the revised manuscript:
- Given that both referees suggest that data from C-band acquisitions are included, I ask you to include a couple of sentences describing that you did analyse data from this band and briefly summarise your findings, whether the analysis supports your hypothesis.
- Describe that you have investigated the effect of incidence angle and found it to be secondary to the spatial variations you observe.
- Add information to the effect that you have looked into CRESIS OIB data and found similar subsurface features as in the sounder data.
- Add a sentence regarding the results that can be derived from the tomograms from X- and L-band.
- Briefly explain why the matrix filter to suppress surface scattering contribution picks up a layer in 30 to 50m depth

In addition, I would like to request the following:
Consider whether the new image showing backscatter for the different bands, together with a summer image, could be included in the appendix.
- I agree with referee Dr. Helm that H and /or HH, HV power along the flight track can easily be added to Fig. 6 without subtracting from the focus of the manuscript.
- I also agree that figures should be colourblind friendly. I appreciate that there is a standard presentation of tomography in the community; however, a quick Google search returned many examples of tomography plots using the viridis colour palette, so I don't think your argument is valid here.

Please clarify the following response: "This 'band' is generally located deeper for the radar-dark features and higher for the radar-dark features (see Tomographic analysis and Modelling approach)." Which is radar-dark and which is radar-bright?

I look forward to receiving the revised manuscript.
Best,
Nanna B. Karlsson
TC Co-editor-in-chief

Dear Sara-Patricia Schlenk and co-authors,
I am pleased to recommend your manuscript " Characterization of Ice Features in the Southwest Greenland Ablation Zone Using Multi-Modal SAR Data" for publication in The Cryosphere. The reviewers note that the study represents an interesting step forward in the interpretation of polarimetric, interferometric, and tomographic measurements of the subsurface characteristics of ice bodies. I am sure your findings will guide future efforts to further understand the interesting radar-dark features that you have identified.
Best,
Nanna B. Karlsson
TC Co-editor-in-chief