论文标题
1903年10月/11月的极端太空天气活动：宁静的阳光爆发
The Extreme Space Weather Event in 1903 October/November: An Outburst from the Quiet Sun
论文作者
论文摘要
虽然太阳在最大阶段和下降的阶段通常更具爆发性，但观察性证据表明，在太阳活动的安静阶段，某些强大的太阳喷发案例。 1903年10月的极端太空天气事件发生在薄弱的太阳能周期中，11月是这些案件之一。在这里，我们根据当代观察记录重建了地磁活动的时间序列。 With the mid-latitude magnetograms, the 1903 magnetic storm is thought to be caused by a fast coronal mass ejection (~1500 km/s) and is regarded as an intense event with an estimated minimum Dst' of ~-513 nT The reconstructed time series has been compared with the equatorward extension of auroral oval (~44.1° in invariant latitude) and the time series of telegraphic disturbances.该案例研究表明，即使在弱太阳能周期或最小值附近，极端太空天气事件构成的潜在威胁也存在。
While the Sun is generally more eruptive during its maximum and declining phases, observational evidence shows certain cases of powerful solar eruptions during the quiet phase of the solar activity. Occurring in the weak Solar Cycle 14 just after its minimum, the extreme space weather event in 1903 October -- November was one of these cases. Here, we reconstruct the time series of geomagnetic activity based on contemporary observational records. With the mid-latitude magnetograms, the 1903 magnetic storm is thought to be caused by a fast coronal mass ejection (~1500 km/s) and is regarded as an intense event with an estimated minimum Dst' of ~-513 nT The reconstructed time series has been compared with the equatorward extension of auroral oval (~44.1° in invariant latitude) and the time series of telegraphic disturbances. This case study shows that potential threats posed by extreme space weather events exist even during weak solar cycles or near their minima.
