Solar 27-day rotational period detected in wide-area lightning activity in Japan
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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2017-04-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/35/583/2017/angeo-35-583-2017.pdf |
| Summary: | 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 10<sup>5</sup> km<sup>2</sup>. The 27-day signal is more prominent around the
maxima of solar decadal cycles. |
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| ISSN: | 0992-7689 1432-0576 |