Dear Dr. Zheng,

Based on the referees' comments and your responses, your manuscript could potentially be appropriate for publication to Annales Geophysicae after substantial revisions. Please submit your revised manuscript incorporating those revisions as you have identified them in your responses to the referees.

Thank you,

Matina Gkioulidou

Dear Dr. Zeng,

I have read your responses to the referees' comments and your revised manuscript and I find it to be suitable for publication in Annales Geophysicae. However, please revise the following text:

- line 77: Change "The distribution of energetic oxygen ions density at the dayside magnetopause is asymmetry" to "The distribution of energetic oxygen ions density at the dayside magnetopause is asymmetric"

- line 98: Change "variations of O+ abundance (O+/H+) in the duskside magnetopause boundary layer during intense substorm (AE >500 nT) on AE index and solar wind conditions (e.g. IMF By, IMF Bz and 99 solar wind dynamic pressure) are still not clear" to "variations of O+ abundance (O+/H+) in the duskside magnetopause boundary layer during intense substorm (AE >500 nT) with AE index and solar wind conditions (e.g. IMF By, IMF Bz and 99 solar wind dynamic pressure) are still not clear".

- line 325: Change "The O+ path from the cusp to the magnetotail is asymmetry" to "The O+ path from the cusp to the magnetotail is asymmetric"

- line 326: Change "This path asymmetry mainly controlled by the IMF By may influence on O+ abundance" to "This path asymmetry mainly controlled by the IMF By may influence the O+ abundance"

-line 332: Please revise the sentence "While in Luo et al. (2017) study that not only the cases for the intense substorm were considered...". The way it is written does not make sense.

-line 350: Change "Previous researches demonstrated that the oxygen ions origin from the aurora region could rapidly..." to "Previous studies demonstrated that the oxygen ions that originate from the aurora region could rapidly..."