Some notes concerning the prediction of the amplitude of the solar activity cycles

被引:0
作者
A. G. Tlatov
机构
[1] The Central Astronomical Observatory of RAS at Pulkovo,Kislovodsk solar station
来源
Astrophysics and Space Science | 2009年 / 323卷
关键词
Solar cycle; Sunspot; Activity;
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摘要
The parameter G, which is determined from the general number of sunspots groups Ng according to the daily observations G=∑(1/Ng)2, is offered. This parameter is calculated for the days when there is at least one sunspots group. It characterizes the minimum epoch solar activity. Parameter G mounts to the maximum during the epoch close to the minimal activity of sunspots. According to the data of the sequence of sunspots group in Greenwich–USAF/NOAA observatory format, observation data of Kislovodsk solar station and also daily Wolf number, the changes of parameter G during 100 years were reconstructed. It is demonstrated in the paper that parameter G’s amplitude in minimal solar activity n is linked with the sunspot cycle’s amplitude Wn+1 or one and half cycles. The 24th activity cycle prediction is calculated, which makes W24=135(±12).
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页码:221 / 224
页数:3
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