15. A. L. Peratt, Characteristics for the Occurrence of a High-Current, Z-Pinch Aurora as Recorded in Antiquity, Trans. Plasma Sci. v.31, n.6, 2003They've been doing field work in Canada recently exploring the physical evidence for proton discharge from aurora to the earth's surface. He told me he also has a book in the works.
18. A. L. Peratt, J. McGovern, A. H. Qöyawayma, M. A. Van der Sluijs, and M. G. Peratt, Characteristics for the Occurrence of a High-Current Z-Pinch Aurora as Recorded in Antiquity Part II: Directionality and Source, Trans. Plasma Sci. v.35, n.4, 2007.
25. A. L. Peratt and W. F. Yao, Evidence for an intense solar outburst in prehistory, Physica Scripta T131, October 2008
FYI - Might want to keep an eye on lighting. Was traveling across the country a few months ago and I ran into the absolute worse lighting storm I have ever seen. Almost unbelievable. Simultaneous strikes all around the vehicle I was driving. And at times the lighting bolt seem to remain for a few seconds. It was at night and the bolts that remained for a few seconds kinda hurt the eyes there were so bright. And I have been seeing quite a few reports about lightning deaths this summer.
Thanks aruanan!