• DocumentCode
    2741350
  • Title

    Unconnected upward leaders observed in Guangzhou during 2009–2010

  • Author

    Lu, Weitao ; Chen, Luwen ; Zhang, Yang ; Ma, Ying ; Yin, Qiyuan ; Chen, Shaodong ; Zhang, Yijun

  • Author_Institution
    Lab. of Lightning Phys. & Protection Eng., Beijing, China
  • fYear
    2011
  • fDate
    1-4 Nov. 2011
  • Firstpage
    609
  • Lastpage
    613
  • Abstract
    More than ten unconnected upward positive leaders initiated from high structures in response to natural downward-moving negative leaders are analyzed. These leaders are observed by using high-speed cameras with sampling rates at the order of 104 fps (frames per second). The propagation velocity, channel width of the unconnected upward leader and the distances between it and strike point are presented. The results can deepen our understanding of the lightning attachment process.
  • Keywords
    lightning protection; channel width; lightning attachment process; propagation velocity; unconnected upward leaders; Cameras; High speed optical techniques; Joining processes; Lead; Lightning; Poles and towers; Spatial resolution;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lightning (APL), 2011 7th Asia-Pacific International Conference on
  • Conference_Location
    Chengdu
  • Print_ISBN
    978-1-4577-1467-2
  • Type

    conf

  • DOI
    10.1109/APL.2011.6110199
  • Filename
    6110199
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2741350