Auxiliary material for
Comment on “Formation of Substorm Pi2: A coherent response to
auroral streamers and currents” by Nishimura et al., J. Geophys. Res.,
117, doi:10.129/2012JA017889, 2012.
I. Jonathan Rae,* Kyle R. Murphy, David M. Miles, Clare E. J. Watt,† Ian R. Mann
Department of Physics, University of Alberta, Edmonton, AB, T6G 2E1, Canada
*Now at Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking,
Surrey, RH5 6NT, UK.
†Now at Space Environment Physics Group, Department of Meteorology, University of Reading, Earley Gate, PO Box
243, Reading RG6 6BB, UK
Journal of Geophysical Research
Auxiliary Material S1. FSMI THEMIS ASI data for the six times in N12 identified to correspond to auroral streamers. Each
panel of Auxiliary Material S1 contains (left) an maxogram analysis equivalent to N12, where entire meridians with obvious
moonglow are omitted and (right) a maxogram analysis whereby only pixels with obvious moonglow are omitted from the
analysis. The yellow arrows correspond to the auroral signatures identified in N12 to be significant auroral streamers that
may be correlated with ULF pulsations.
Auxiliary Material M1. Movie of the event using the maxogram analysis whereby entire meridians containing obvious
moonglow contamination are removed from the analysis. The points denote the maximum intensities as a function of
magnetic latitude that are used to construct the maxograms used in this Comment by removing entire meridians with
obvious moonglow.
Auxiliary Material M2. Movie of the event using the maxogram analysis whereby only pixels with obvious moonglow
contamination are removed from the analysis. The points denote the maximum intensities as a function of magnetic latitude
that are used to construct the maxograms used in this Comment by removing only pixels with obvious moonglow.