Geophysical Research Letters

High-speed telescopic imaging of sprites



[1] Telescopic video observations of sprites at high frame rates show very complex structures in both space and time, including bead and streamer-like formations and propagation. Observed streamers rarely persist for more than 1–2 ms, while observed beads persist up to tens of ms and do not appear to propagate in this data set. Additionally, images show that streamer-like channels often contain many bead-like structures. While the time resolution cannot directly observe propagation, images show that the so-called “streamers” presented here do seem to exhibit signs of propagation. These results are compared to previous measurements and discussed in the context of streamer modeling and laboratory streamers.