Space Weather: Study of Evolution of Magnetic Fields Associated with Flares, Filament Eruptions and Coronal Mass Ejections (CMEs)

由于最近发现太阳表面活跃区磁通量的突然变化与太阳耀斑或日冕物质抛射的发生之间可能存在联系，将对五个最佳事件进行协调研究，以阐明这种联系的物理基础。 对这些事件的空前报道包括来自大熊太阳天文台、迈克尔逊多普勒成像仪、米斯太阳天文台和马歇尔航天飞行中心的磁图，以及EIT、TRACE和Yohkoh获得的日冕数据。 这项工作的第二部分将确定一组具有高质量数据覆盖率的事件和相关的日冕物质抛射，以确定这种联系的统计基础的性质。 这项研究的结果将使科学界能够通过监测光球磁场的演变，如通量的迅速出现或消失以及剪切流的突然加速，建立空间气象预报工具。

Motivated by the recent discovery of a possible connection between sudden changes in active region magnetic flux at the solar surface and the onset of a solar flare or coronal mass ejection, a coordinated study of the five best events will be undertaken to elucidate the physical underpinning of this connection. The unprecedented coverage of these events includes magnetograms from the Big Bear Solar Observatory, the Michelson Doppler Imager, the Mees Solar Observatory, and the Marshall Space Flight Center, and coronal data obtained by EIT, TRACE and Yohkoh. The second part of this effort will identify a set of events with high quality data coverage and associated coronal mass ejections, to determine the nature of the statistical basis of this connection. The results of this study will enable the community to establish space weather forecasting tools by monitoring photospheric magnetic field evolution, such as rapid flux emergence or cancellation, and the sudden acceleration of shear flows.