Sorry, I was taking issue with the headline for not calling an EMP an EMP.
Well, just glad you stopped by the thread! We have to post the headline as the author gives it. In this case, the author writes for Space Weather so his focus is more with atmospheric effects like the Nuclear aurora and how it affects the Van Allen belt and Magnetosphere. He was reporting the article regarding testing of impedance or current flow and EMPs.
An aside; I once worked customer service in the back office of a Financial Services company, and I took a call and spoke to the the Grandson of Oliver Heaviside, one of the 2 “discoverers” of the Kennelly/Heaviside layer!
https://en.wikipedia.org/wiki/Kennelly%E2%80%93Heaviside_layer