Power spectral densities computed from low-latitude horizontal intensity of the Earth's magnetic field over two-year periods of declining phases of solar cycles 16 to 19 show a close relationship with the maximum relative sunspot number of the following solar cycles. The maximum sunspot number shows
Geomagnetic activity, sunspot number and its rate of increase
โ Scribed by Rangarajan, G. K.
- Book ID
- 120900359
- Publisher
- Springer-Verlag
- Year
- 1977
- Tongue
- English
- Weight
- 188 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0370-0089
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๐ SIMILAR VOLUMES
The average rate of growth during the ascending portion of the sunspot cycle, defined here as the difference in smoothed sunspot number values between elapsed time (in months) t and sunspot minimum divided by t, is shown to correlate (r > 0.78) with the size of the sunspot cycle, especially for t >
Statistically significant correlations exist between the size (maximum amplitude) of the sunspot cycle and, especially, the maximum value of the rate of rise during the ascending portion of the sunspot cycle, where the rate of rise is computed either as the difference in the month-to-month smoothed