The 12-month running mean of the geomagnetic index aa seems to have attained a minimum value of 17.5 centered at December 1986. The fresh estimate of Rz(max ) is now ~ 165 \_+ 35. Also, if Rz(min ) is taken into consideration, the Rz(max ) estimate will drop to ~ 130. Details of the methodology and
โฆ LIBER โฆ
Did predictions of the maximum sunspot number for solar cycle No. 22 come true?
โ Scribed by R. P. Kane
- Publisher
- Springer
- Year
- 1992
- Tongue
- English
- Weight
- 596 KB
- Volume
- 140
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
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Examined are associational aspects as they relate the maximum amplitude R M for the sunspot cycle to the rate of rise Ral during the ascending phase, where R M is the smoothed sunspot number at cycle maximum and Rat is the sum of the monthly mean sunspot numbers for selected 6-month intervals (At) m