Dear Arno,

below you find my editor comments to the revised manuscript. In addition, the reviewer comments are available as a pdf file.

Please provide a reply to all the comments and a revised manuscript in track modus.

Best wishes
Mark

l. 185: It should be clarified if the retrieval uses forward calculations with and without clouds, using the cloud fraction as weights for partially cloudy scenes.
l. 198: “along the total ozone axis” sounds awkward, maybe say “in both ranges the median from all profiles for a given total ozone value is used.
l. 369: do not use the term “sub-columns”. Mention panel numbers instead. You may say “the panels on the left and right sides”.
Fig. 2: Replace orbit numbers with a time axis, e.g. years (or add a second time axis). Technically, each individual plot needs a separate panel number.
Fig. 5: use larger fonts in the maps
Fig. 6: each plot needs a panel number
Fig. 11: use a lighter grey colour in the plot (too dark). Add panel numbers for each plot (three) and mention the ground-based measurement type in each panel. Explain what X (chi) is.
Fig. 14: Make the fonts larger in each map. In the figure caption, explain the panels in the right order (now: you start with c and then a, b). Alternatively, you can reorder the maps to match the order in the figure caption.
Fig A4: see comments to Fig, 11
The appendix should be separated from the paper and be available as a supplement. Then, the numbering should be S1 instead of A1, and so on.