[O-08] Poster presentations by senior high school students

[O08-P63] Relationships between sprites and the lightning charge moment

*Daijiro sasaoka¹, Haru Ogasawara¹, Hisano Kawabuti¹, Niko Kunimatsu¹, Hina Morimoto¹, *Yuto Nakano¹, *Kanoto Maeda¹ (1.Prefectural Kochi Ozu High School)

Keywords:TLEs, Lightning

We are observing sprites, which is a high-altitude light emission phenomenon. The phenomenon occurs at an altitude of 50 to 100 km due to a lightning strike. The phenomena are known as sprites and elves, and we are particularly studying sprite. Sprites are said to occur with positive lightning strikes but they don`t always occur, and the cause is not clear. We hypothesize that positive lightning strikes with sprites generally have a large charge moment value. For the verification, instead of the value of the charge moment, which is difficult to measure, the integrated value of the magnetic flux density proportional to it was used.