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“Optical Observations of Needles in Upward Lightning Flashes” published in Nature Scientific Reports
Our latest peer-reviewed journal paper “Optical Observations of Needles in Upward Lightning Flashes” was published on 15 Oct 2020. It is open access and available for download at the link below.
The paper describes how attempted branches on positive leader channels can pulse well after the leader tip continues propagating away. These pulsing features are defined as “needles” and in rare cases, they can develop into a negative leader branch.
The online version of the paper which includes supplementary video can be found at this link.
Saba, M.M.F., A. R. de Paiva, L. C. Concollato, T. A. Warner and C. Schumann (2020), Optical observation of needles in upward lightning flashes. Sci Rep 10, 17460 (2020) doi:10.1038/s41598-020-74597-6