Optical observation of needles in upward lightning flashes.
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ABSTRACT:
SUBMITTER: Saba MMF
PROVIDER: S-EPMC7562907 | biostudies-literature | 2020 Oct
REPOSITORIES: biostudies-literature
Publications
Optical observation of needles in upward lightning flashes.
Saba Marcelo M F MMF de Paiva Amanda R AR Concollato Luke C LC Warner Tom A TA Schumann Carina C
Scientific reports 20201015 1
Why lightning sometimes has multiple discharges to ground is an unanswered question. Recently, the observation of small plasma structures on positive leaders re-ignited the search. These small plasma structures were observed as pulsing radio sources along the positive leader length and were named "needles". Needles may be the missing link in explaining why lightning flickers with multiple discharges, but this requires further confirmation. In this work we present the first optical observations o ...[more]
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