Journal cover Journal topic
Annales Geophysicae An open-access journal of the European Geosciences Union
Ann. Geophys., 35, 583-588, 2017
https://doi.org/10.5194/angeo-35-583-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
ANGEO Communicates
24 Apr 2017
Solar 27-day rotational period detected in wide-area lightning activity in Japan
Hiroko Miyahara1, Chika Higuchi2, Toshio Terasawa3,4, Ryuho Kataoka5,6, Mitsuteru Sato7, and Yukihiro Takahashi7 1Humanities and Sciences/Museum Carriers, Musashino Art University, Tokyo, 187-8505, Japan
2Tokyo Institute of Technology, Tokyo, 152-8550, Japan
3iTHES, RIKEN, Saitama, 351-0198, Japan
4ICRR, University of Tokyo, Chiba, 277-8582, Japan
5National Institute of Polar Research, Tokyo, 190-8518, Japan
6Department of Polar Science, SOKENDAI, Tokyo, 190-8518, Japan
7Hokkaido University, Hokkaidō, 060-0810, Japan
Abstract. A signal of the 27-day solar rotational period is often observed in cloud and lightning activities over the globe. Here we provide evidence of the 27-day periodicity of lightning activity in Japan using daily observational records of lightning for AD 1989–2015. The 27-day period is detected with 4.2 standard deviations, but only in wide-area lightning activity covering more than a 105 km2. The 27-day signal is more prominent around the maxima of solar decadal cycles.

Citation: Miyahara, H., Higuchi, C., Terasawa, T., Kataoka, R., Sato, M., and Takahashi, Y.: Solar 27-day rotational period detected in wide-area lightning activity in Japan, Ann. Geophys., 35, 583-588, https://doi.org/10.5194/angeo-35-583-2017, 2017.
Publications Copernicus
Download
Short summary
Detailed analyses of the 27-day solar rotational period in cloud and lightning activities may help in untangling the process of solar influence on weather and climate. We analyzed the lightning data in Japan for AD 1989–2015 and found that the 27-day solar rotational period is seen in wide-area lightning activity. The signal was stronger at the maxima of solar decadal cycles. It was also found that the signal of the 27-day period migrates from the southwest to the northeast in Japan.
Detailed analyses of the 27-day solar rotational period in cloud and lightning activities may...
Share