Do Records of Sunspot Sightings Provide Reliable Indicators of Solar Maxima for 1613 – 1918?
Do Records of Sunspot Sightings Provide Reliable Indicators of Solar Maxima for 1613 – 1918?
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DOI：
10.1007/s11207-019-1528-1
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发表时间：
2019-10
期刊：
影响因子：
2.8
通讯作者：
Hongrui Wang;Huiduan Li
中科院分区：
文献类型：
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作者：
Hongrui Wang;Huiduan Li
不借助望远镜而用肉眼获得的太阳黑子目击记录（RSS）对于发现遥远过去的太阳活动至关重要。几十年来，人们一直通过 RSS 来识别强烈的太阳活动或太阳极大期。然而，RSS 作为太阳极大值指标的性能却很少通过定量分析进行讨论。通过使用每个 RSS 与特定太阳极大值之间的时间差，可以获取 1613 年至 1918 年的 RSS，作为太阳极大值的指标。结果显示，约33%的太阳黑子目击事件是在太阳极大期一年内获得的，约51%的太阳黑子目击事件是在太阳极大期两年内获得的。 RSS识别太阳极大值的平均时间误差为2.52年，时间为1613年~1918年。如果太阳极大值的识别可以容忍一定的时间误差，RSS可以普遍用作太阳极大值的指标。
Records of Sunspot Sightings (RSS) which were obtained by the naked eye without the aid of the telescope are essential to find the solar activity in the distant past. Intense solar activity or the solar maxima had been identified by using the RSS for several decades. However, the performance of the RSS as the indicators of the solar maxima has rarely been discussed with quantitative analysis. The RSS from 1613 to 1918 are accessed as the indicators of the solar maxima, by using the time difference between each RSS and the specific solar maxima. The results have shown that about 33% of the sunspot sightings were obtained within one year of the solar maxima and about 51% of the sunspot sightings were obtained within 2 years of the solar maxima. The average time error of identifying the solar maxima by the RSS is 2.52 years, during the period 1613 – 1918. If a certain amount of time error could be tolerated for the identification of the solar maxima, the RSS could be generally used as indicators of the solar maxima.