第24太阳活动周期间一次显著的向极涌动的来源
Source of a Prominent Poleward Surge During Solar Cycle 24
摘要：
作为一个观测的案例研究，我们认为起源的一个突出的极地浪涌领先的极性，可见在磁蝶图在太阳活动周期24。本文提出了一种新的技术，用于将个别强磁通量区同化到地面通量输运模式中。通过分离这些区域的贡献，该模型显示浪涌主要起源于一个单一的高纬度活动组，包括卡林顿旋转2104-05（2010年11月至2011年1月）的双极活动区和旋转2107-08（2011年2月至4月）的多极活动区。这组有一个强大的轴向偶极矩反对乔伊的法律。另一方面，模拟表明，这一群体对蝴蝶图的短暂影响不会与对极场的长期贡献相匹配，因为它位于高纬度。这与以前的通量传输模型是一致的。
英文摘要：
As an observational case study, we consider the origin of a prominent poleward surge of leading polarity, visible in the magnetic butterfly diagram during Solar Cycle 24. A new technique is developed for assimilating individual regions of strong magnetic flux into a surface flux transport model. By isolating the contribution of each of these regions, the model shows the surge to originate primarily in a single high-latitude activity group consisting of a bipolar active region present in Carrington Rotations 2104-05 (November 2010-January 2011) and a multipolar active region in Rotations 2107-08 (February-April 2011). This group had a strong axial dipole moment opposed to Joy's law. On the other hand, the modelling suggests that the transient influence of this group on the butterfly diagram will not be matched by a large long-term contribution to the polar field, because of its location at high latitude. This is in accordance with previous flux transport models.
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