aurora strata

LITAurora colours are layered by altitude. Atomic oxygen's red line at 630.0 nm comes from a long-lived state that is quenched by collisions lower down, so it glows highest, roughly 200–400 km. Oxygen's green 557.7 nm and the blue-violet N₂⁺ band at 427.8 nm both peak near 114 km (Annales Geophysicae 41, 1, 2023). Nitrogen below about 100 km gives the pink-purple lower edge (NASA).

COMPUTEDHere the nesting is turned on its side: orange-red oxygen outermost, a purple nitrogen fringe at the bottom, and the void above and below. Every curtain pixel colour is a CIE mix of the real lines, weighted by an altitude profile. MODELThe profiles are Gaussians placed at the cited peaks, and the electron-energy slider moves them (harder electrons reach deeper).

electron energy substorm

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