Please address the comments from both reviewers and revise the manuscript. I also the following technical comments.

- Axis labels and units are missing from some of the figures, such as
Figs. 2, 3 and 6. Please add them to the figures.

- The way the axis titles are presented in Fig.3 is not good. Please place the axis labels as those in Fig.5 or Fig.8.

I have the following editorial comments. Please revise the manuscript addressing them.
1. In “Introduction”, names of the ice core sites GRIP, Antarctic Dome C cores, NGRIP, EDML and Vostok are shown without any explanations. Page 2 Line 32 also shows EDC without any explanation. When these names show up in the text for the first time, please cite references or give brief statements on the ice core sites (locations etc).
2. Page 1, Line 30. A reference for Laschamp geomagnetic excursion is needed.
3. Page 2, Line 32. This is a strange paragraph. A paragraph should contain more than one sentence.
4. GICC05 first appears in Table 1 without any statement or reference. Please cite a reference.
5. Page 4, Line 21. “27+-7 (2sigma)” How was the sigma value calculated? If I understand it correctly, there are only two data values, 23 yr and 31 yr. If this is the case, I don’t think that sigma means much.
6. Please change the order of Figs. 5 and 6. In the text Fig. 6 shows up before Fig. 5. Following this change, Page 6, Line 25 should be also changed.
7. Please check the references more carefully. There are a lot of errors. For example,
- Page 5, Line 36. Gouion et al., 2007 is missing in the reference list.
- Page 7, Line 14. Shupbach et al., 2012. Do you mean 2011? The reference list reads 2011.
- Page 11. Line 15. Johnsen et al.
- Menviel et al, North Greenland Ice Core Project Members, Rusmussen et al., Stenni et al., Wolff et al. are on the publication list, but not in the text.
- Caption of Fig.5. Loulergue at al. (2008). The reference list reads 2007.
- Caption of Fig. 6. Bazin et al., 2012. The reference list reads 2013.

About half of the references are missing DOIs, eg. (but also many more)
- Blunier, T. and Brook, E. J.: Timing and millennial-scale climate change in Antarctica and Greenland during the last glacial period, Science, 291, 109-112, 2001.
- Broecker, W. S.: Paleocean circulation during the last deglaciation: A bipolar seesaw? Paleoceanography, 13, 119-121, 1998
- Buiron, D., Stenni, B., Chappellaz, J., Landais, A., Baumgartner, M., Bonazza, M., Capron, E., Frezzotti, M., Kageyama, M., Lemieux-Dudon, B., Masson-Delmotte, V., Parrenin, F., Schilt, A., Selmo, E., Severi, M., Swingedouw, D., and Udisti, R.: Regional imprints of millennial variability during the MIS 3 period around Antarctica, Quaternary Sci. Rev., 48, 99?112, 2012.
- Christl, M., Vockenhuber, C., Kubik, P.W., Wacker, L., Lachner, J., Alfimov, V. and Synal, H.A.: The ETH Zurich AMS facilities: Performance parameters and reference materials. Nucl. Instrum. Methods Phys. Res., Sect. B 294, 29?38, 2013.
- Dreyfus, G., Jouzel, J., Bender, M.L., Landais, A., Masson-Delmotte, V., Leuenberger, M.: Firn processes and δ15N: potential for a gas-phase climate proxy, Quaternary Sci. Rev., 29, 1-2, 28-42, 2010

8. Caption of Table 1. Please state what L1, L2, L3, BeA, BeB, BeC, BeD and BeE mean.
9. Please remove yellow markers.