Topical Issue - 10 years of JSWSC
Open Access
Agora – Education and public outreach

Fig. 2

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A timeline of solar, geophysical and technology effects for the January 1938 storms. The two vertical lines for the first storm indicate a range of uncertainty about which solar storms or combinations thereof caused the geomagnetic disturbances on 16/17 January. Events and solar longitudes of flares are from data in Table 2 of Hayakawa et al. (2021a).

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