论文标题
全disc Ca II K观测 - 过去太阳能磁性的窗口
Full-disc Ca II K observations -- a window to past solar magnetism
论文作者
论文摘要
首先，这种观察是在1892年进行的，从那时起，世界各地的各个地点都进行了定期观察，而Kodeikanal，Meudon，Wilson Mt和Coimbra是最杰出的。到目前为止，来自40多个不同地点的CA II K观察允许上个世纪几乎每天完全覆盖。 CA II K图像提供了有关太阳上的材料和网络区域的直接信息，并通过与太阳表面磁场的联系提供了一个绝佳的机会，可以在一个多世纪的时间内研究太阳能磁力。对于太阳辐照度的重建以及对太阳能对地球气候的影响的研究，这也使它们也极为重要。但是，这些数据也遭受了许多问题的困扰，这些问题很长一段时间都阻碍了他们的分析。如果没有正确解决这些问题，CA II K数据就无法充分发挥其潜力。在这里，我们首先概述了当前已知的CA II K数据存档和数据中不均匀性的来源，然后再讨论现有的处理技术，然后回顾到目前为止使用此类数据得出的主要结果。
First such observations were made in 1892 and since then various sites around the world have carried out regular observations, with Kodaikanal, Meudon, Mt Wilson, and Coimbra being some of the most prominent ones. By now, Ca II K observations from over 40 different sites allow an almost complete daily coverage of the last century. Ca II K images provide direct information on plage and network regions on the Sun and, through their connection to solar surface magnetic field, offer an excellent opportunity to study solar magnetism over more than a century. This makes them also extremely important, among others, for solar irradiance reconstructions and studies of the solar influence on Earth's climate. However, these data also suffer from numerous issues, which for a long time have hampered their analysis. Without properly addressing these issues, Ca II K data cannot be used to their full potential. Here, we first provide an overview of the currently known Ca II K data archives and sources of the inhomogeneities in the data, before discussing existing processing techniques, followed by a recap of the main results derived with such data so far.
