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High‐speed telescopic imaging of sprites
Author(s) -
Marshall R. A.,
Inan U. S.
Publication year - 2005
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl021988
Subject(s) - context (archaeology) , geology , frame rate , image resolution , temporal resolution , physics , optics , geophysics , paleontology
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.