Periodicities in the occurrence of aurora as indicators of solar variability
Technical Report
·
OSTI ID:6796330
A compilation of records of the aurora observed in China from the Time of the Legends (2000 - 3000 B.C.) to the mid-18th century has been used to infer the frequencies and strengths of solar activity prior to modern times. A merging of this analysis with auroral and solar activity patterns during the last 200 years provides basically continuous information about solar activity during the last 2000 years. The results show periodicities in solar activity that contain average components with a long period (approx. 412 years), three middle periods (approx. 38 years, approx. 77 years, and approx. 130 years), and the well known short period (approx. 11 years).
- Research Organization:
- Academia Sinica, Beijing (China)
- OSTI ID:
- 6796330
- Report Number(s):
- N-84-13093
- Country of Publication:
- United States
- Language:
- English
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