The Dalton Minimum and John Dalton’s Auroral Observations
In addition to the regular Schwabe cycles of approximately 11 y, “prolonged solar activity minima” have been identified through the direct observation of sunspots and aurorae, as well as proxy data of cosmogenic isotopes. Some of these prolonged minima have been regarded as grand solar minima, which...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
EDP Sciences
2021-01-01
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Series: | Journal of Space Weather and Space Climate |
Subjects: | |
Online Access: | https://www.swsc-journal.org/articles/swsc/full_html/2021/01/swsc200101/swsc200101.html |