Articles | Volume 35, issue 6
ANGEO Communicates
03 Nov 2017
ANGEO Communicates |  | 03 Nov 2017

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

Hiroko Miyahara, Yasuyuki Aono, and Ryuho Kataoka

Data sets

Date of thunder and lightning events in Kyoto, Japan H. Miyahara, Y. Aono, and R. Kataoka

Short summary
Solar activity and climate show correlations over a wide range of timescales. It is important to understand the behavior of the 27-day solar rotational period in lightning activities because it provides an opportunity to understand how the sun influences weather and climate. We analyzed lightning data extracted from diaries written in Kyoto, Japan from the mid-17th to the mid-18th century. Lightning shows the signal of the 27-day period; however, it disappeared during the Maunder Minimum.