The authors have not included references and discussion of external (solar wind) causes of SSWs, only internal waves. Such waves have never been shown to cause SSWs, only theoretical speculation. The fact that referee 1 has pointed out your error/bias on identifying low Kp values for a particular interval and now preferentially deleting high Kp days is very troubling.

The authors need to do a further major revision of the paper to bring it to a more objective viewpoint for the readership of NPG. Otherwise the paper will be rejected.

I will consider accepting the paper even if the initial hypothesis is found to be incorrect. A negative result is as important as a positive result.