%0 Journal Article
%3 continuing current.pdf
%4 sid.inpe.br/mtc-m18@80/2008/11.21.11.12
%@issn 0169-8095
%A Ferro, Marco Antonio da Silva,
%A Saba, Marcelo Magalhães Fares,
%A Pinto Júnior, Osmar,
%@secondarytype PRE PI
%B Atmospheric Research
%D 2009
%F self-archiving-INPE-MCTIC-GOV-BR
%@secondarykey INPE--PRE/
%K New lightning channel, Multiple channel flashes, Continuing current, Lightning, High-speed video.
%@archivingpolicy denypublisher denyfinaldraft24
%N 2/4
%P 399-403
%@secondarymark B1_ENGENHARIAS_II A2_GEOCIÊNCIAS A1_INTERDISCIPLINAR
%T Continuing current in multiple channel cloud-to-ground lightning
%V 91
%X In this study we analyze the effects of continuing current initiated by strokes following a new channel to ground in multiple stroke flashes using high-speed video records, electric field measurements from a fast antenna and lightning detection network data. We observed that the long continuing current initiated by a stroke that follows a new channel also obeys the pattern in the initiation of long continuing current suggested by Rakov and Uman [Rakov, V.A., Uman, M.A., 2003. Lightning: Physics and Effects, 687pp., Cambridge Univ. Press, New York.]. We also verify that the statement of Rakov and Uman [Rakov, V.A. and Uman, M.A., 1990. Some properties of negative cloud-to-ground lightning flashes versus stroke order, Journal of Geophysical Research. 95, 54475453.] reporting that: ...strokes initiating long continuing currents tend to have lower initial electric field peak than regular strokes is valid for strokes that create a new channel to ground and are followed by long continuing current (CC). Apparently the reduction of peak current value (Ip) when the stroke is followed by a long CC is stronger than the Ip increase that is commonly observed when strokes follow a new channel. We also find that the exclusion zone proposed by Saba et al. [Saba, M.M.F., Pinto, O. Jr., Ballarotti, M.G., 2006a. Relation between lightning return stroke peak current and following continuing current, Geophysical Research Letters 33, L23807, doi:10.1029/2006GL027455.] is valid for new channels initiating CC, and finally we verify that a number of strokes in the same channel larger than four or the existence of a long CC current do not always consolidate the channel in a multiple stroke flash.
%@area CEA
%@documentstage not transferred
%@group DGE-CEA-INPE-MCT-BR
%@group DGE-CEA-INPE-MCT-BR
%@group DGE-CEA-INPE-MCT-BR
%@dissemination WEBSCI; PORTALCAPES.
%@usergroup administrator
%@usergroup simone
%@nexthigherunit 8JMKD3MGPCW/3EU29DP
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@versiontype publisher
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@doi 10.1016/j.atmosres.2008.04.011
%2 sid.inpe.br/mtc-m18@80/2008/11.21.11.12.22