Title :
Lightning observations at Tokyo Skytree
Author :
Shindo, Takatoshi ; Miki, T. ; Saito, Masato ; Tanaka, Daiki ; Asakawa, Akira ; Motoyama, Hideki ; Ishii, M. ; Sonehara, Takeo ; Suzuhigashi, Yusuke ; Taguchi, Hiroshi
Author_Institution :
Central Res. Inst. of Electr. Power Ind. (CRIEPI), Yokosuka, Japan
Abstract :
Observation of lightning hitting Tokyo Skytree, a 634-m high freestanding broadcasting tower, started in February 2012. In 2012 and 2013, current waveforms associated with 24 lightning flashes have been obtained by specially designed wide-band Rogowski coils installed at a height of 497m. The ratio of upward lightning is quite different in 2012 and 2013. In addition to these, we have observed development of upward connecting leaders started from the top of Tokyo Skytree with a high-speed camera.
Keywords :
lightning; AD 2012 02; AD 2012 to 2013; Tokyo Skytree lightning observation; current waveform; high freestanding broadcasting tower; high-speed camera; lightning flash; specially designed wideband Rogowski coil; upward connecting leader development; upward lightning ratio; Cameras; Coils; Electromagnetic compatibility; Joining processes; Land surface temperature; Lightning; Poles and towers; Rogowski coil; Tokyo Skytree; connecting leader; downward lightning; high-speed camera; lightning; upward lightning;
Conference_Titel :
Electromagnetic Compatibility (EMC Europe), 2014 International Symposium on
Conference_Location :
Gothenburg
DOI :
10.1109/EMCEurope.2014.6930973
