Dear Tom Jordan,

thank you for revising your manuscript following the two reviews. You sufficiently considered their comments and adequately changed the manuscript, which I therefore can accept for publication in TC. However, I ask you for several editorial changes, listed below, before you upload your final version.

Regards,
Olaf Eisen

line 136: delete one “where”
249-251: rewrite last sentence, difficult to understand
281: “glacial” does not fit, I suggest to change to “As RES over ice employs …”
315: scatterer dimensions are …: unclear what the numbers mean, relative dimension of dimension of space (then unit is missing)
334: split sentence: assumes radial isotropy for H and Xi. Since we are …
338: repedition: Paden already cited above where wavelength is first introduced.
378: Unclear where 0.65 is coming from and what it means here: resolution of number of range cells? If resolution, why? Unit missing?
413: (5.2) -> (Sect. 5.2)
460: although it clear that: add “is”
516: 100s km2 -> 100s of km2
685: remove () from citation
Figure 1: last sentence: fix grammar “have … is”. Add after last sentence: by a factor of 10.
Figure 6: title and first sentence in caption: northern Greenland -> north-eastern Greenland
Figure 7: I suggest to use the same scale for y-axes of b, c, d at least, as not only the shape but also the area is important for visual comparison.
Figure 8: Same as for Fig. 7: E.g. c and f look dominant, which is only attributed to the different y-scale.


Typesetting:
- unify usage of % without leading space, i.e. 1% not 1 %
- l 309: delete “,” after scattering
- 418: “data, “ -> “data “
- 576: “surface, “ -> “surface “
- 615: thickness – correlated -> thickness-correlated
- Fig. 6: panel titles and caption: Rms looks unusual. The text uses RES and rms. I suggest to unify by writing RMS throughout the text or at least using RMS here.
- several very minor aspects are not conform with the typesetting instructions and will be dealt with during copyediting, e.g. usage of multiple braces for references, hyphenations, etc.