Low-latitude auroras: the magnetic storm of 14–15 May 1921

@article{Silverman2001LowlatitudeAT,
  title={Low-latitude auroras: the magnetic storm of 14–15 May 1921},
  author={S. Silverman and E. Cliver},
  journal={Journal of Atmospheric and Solar-Terrestrial Physics},
  year={2001},
  volume={63},
  pages={523-535}
}
Abstract We review solar/geophysical data relating to the great magnetic storm of 14–15 May 1921, with emphasis on observations of the low-latitude visual aurora. From the reports we have gathered for this event, the lowest geomagnetic latitude of definite overhead aurora (coronal form) was 40° and the lowest geomagnetic latitude from which auroras were observed on the poleward horizon in the northern hemisphere was 30°. For comparison, corresponding overhead/low-latitude values of 48°/32° and… Expand
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