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		<doi>10.1029/2022GL101482</doi>
		<issn>0094-8276</issn>
		<citationkey>SabaSilvPantSilv:2022:ClViLi</citationkey>
		<title>Close View of the Lightning Attachment Process Unveils the Streamer Zone Fine Structure</title>
		<year>2022</year>
		<typeofwork>journal article</typeofwork>
		<secondarytype>PRE PI</secondarytype>
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		<author>Saba, Marcelo Maglhães Fares,</author>
		<author>Silva, Diego Rhamon Reis da,</author>
		<author>Pantuso, John G.,</author>
		<author>Silva, Caitano L. da,</author>
		<orcid>0000-0001-5857-761X</orcid>
		<orcid>0000-0002-8714-1046</orcid>
		<group>DISSM-CGCT-INPE-MCTI-GOV-BR</group>
		<group>MET-MET-DIPGR-INPE-MCTI-GOV-BR</group>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>New Mexico Tech</affiliation>
		<affiliation>New Mexico Tech</affiliation>
		<electronicmailaddress>marcelosaba@gmail.com</electronicmailaddress>
		<electronicmailaddress>dieggo522@hotmail.com</electronicmailaddress>
		<journal>Geophysical Research Letters</journal>
		<volume>49</volume>
		<number>24</number>
		<pages>e2022GL101482</pages>
		<secondarymark>A1_INTERDISCIPLINAR A1_GEOGRAFIA A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A1_ENGENHARIAS_I A1_CIÊNCIAS_AMBIENTAIS A1_CIÊNCIAS_AGRÁRIAS_I A1_BIODIVERSIDADE A2_QUÍMICA A2_ENGENHARIAS_IV A2_ENGENHARIAS_II A2_CIÊNCIAS_BIOLÓGICAS_I B1_ASTRONOMIA_/_FÍSICA B2_ENSINO</secondarymark>
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		<keywords>cloud-to-ground flash, corona, lightning rod, streamers, unconnected upward leaders, upward connecting leader.</keywords>
		<abstract>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.</abstract>
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		<language>en</language>
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