A personal story bone that you might also find interesting.
Operation Dominic / Operation Fishbowl, Starfish Prime test. Or, in common language, high altitude thermonuclear explosion tests and their result. I have a short story (more like novella) that includes such a happening, so getting real data on what it would look like and the resulting "aurora" effect will certainly help the story. But you may also be interested in it (if only to wake you up in the middle of the night in a cold sweat).
There's also interesting details about having to safety explode some of the test vehicles spreading poisoning the launch area with plutonium. The link to Operation Dominic also lists all the test including some of the errors. Some of those errors included missile launches that went out of control with a live, armed, nuclear warhead on the top.