JpGU-AGU Joint Meeting 2017

Presentation information

[JJ] Poster

P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM22] [JJ] Physics and Chemistry in the Atmosphere and Ionosphere

Wed. May 24, 2017 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall HALL7)

convener:Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Takuya Tsugawa(National Institute of Information and Communications Technology), Seiji Kawamura(National Institute of Information and Communications Technology)

[PEM22-P03] Difference between North-South and East-West components of ELF magnetic disturbances associated with lightning detected at Kawatabi, Osaki, Miyagi, Japan

*Tomoko Nakagawa1, Syota Takahashi1, Kotaro Nishiyama1 (1.Information and Communication Engineering, Tohoku Institute of Technology)

Keywords:ELF, lightning, magnetic variation, East-West, induction magnetometer, direction

In the record of 0.1-20 Hz Extremely Low Frequency (ELF) magnetic variations observed by using two sets of induction magnetometers for NS and EW components, there found cases where broadband disturbances were present only in one of the two components. Intense disturbance was found in EW component in 6 out of 8 events found at Kawatabi, in the absence of NS disturbances. It would suggest the orientation of the source lightning near the observation site.