%0 Journal Article
%4 sid.inpe.br/mtc-m21d/2023/01.06.11.34
%2 sid.inpe.br/mtc-m21d/2023/01.06.11.34.01
%@doi 10.1029/2022GL101482
%@issn 0094-8276
%T Close View of the Lightning Attachment Process Unveils the Streamer Zone Fine Structure
%D 2022
%9 journal article
%A Saba, Marcelo Maglhães Fares,
%A Silva, Diego Rhamon Reis da,
%A Pantuso, John G.,
%A Silva, Caitano L. da,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation New Mexico Tech
%@affiliation New Mexico Tech
%@electronicmailaddress marcelosaba@gmail.com
%@electronicmailaddress dieggo522@hotmail.com
%B Geophysical Research Letters
%V 49
%N 24
%P e2022GL101482
%K cloud-to-ground flash, corona, lightning rod, streamers, unconnected upward leaders, upward connecting leader.
%X A very close high-speed video observation of lightning attachment to a building revealed novel details regarding the leader streamer zone dynamics. Upward leaders propagate in a steady and unbranched manner, displaying a uniformly luminous corona brush. The exception being the upward connecting leader (UCL) just before connection, when its streamer zone increases in size and develops a more filamentary pattern. Downward negative leaders have 3-m long multiple streamers emanating from each negative leader tip. On some occasions, plasma formations known as space stems are seen to form in the location previously occupied by negative streamers. Space stems have luminosities comparable to the main leader channel, but are detached from it by 4 m. Some space stems display streamers of their own, including cases where streamers are emanating from both ends. The space stem formation hampered the propagation of the negative leader that was closest to the UCL.
%@language en
%3 Geophysical Research Letters - 2022 - Saba - Close View of the Lightning Attachment Process Unveils the Streamer Zone Fine.pdf