Searching for the 27-day solar rotational cycle in lightning events recorded in old diaries in Kyoto from the 17th to 18th century

A solar rotational period of approximately 27 days has been detected in cloud and lightning activities, although the mechanism of the sun–climate connection remains unclear. In previous studies, lightning activity in Japan showed a significant signal of the solar rotational period, especially ar...

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Bibliographic Details
Main Authors: H. Miyahara, Y. Aono, R. Kataoka
Format: Article
Language:English
Published: Copernicus Publications 2017-11-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/35/1195/2017/angeo-35-1195-2017.pdf