On the Topological Evolution of the Coronal Magnetic Field During the Solar Cycle
On the Topological Evolution of the Coronal Magnetic Field During the Solar Cycle
复制标题
太阳周期期间日冕磁场的拓扑演化
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
N. Sheeley, Jr.
中科院分区：
文献类型：
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作者：
Y.;N. Sheeley, Jr.
使用一个轴对称模型，其中包括通量出现和表面传输过程的影响，我们计算的光球磁场在太阳活动周期的演变，并推导出相应的序列的日冕配置通过位场源表面外推。通过识别磁中性点并跟踪每个拓扑域内总通量的变化，我们构建了一个关于当日冕场反转其极性时开放和闭合通量如何传输的整体图像：
Using an axisymmetric model that includes the effects of flux emergence and surface transport processes, we calculate the evolution of the photospheric magnetic field over the solar cycle and derive a corresponding sequence of coronal configurations by means of a potential-field source-surface extrapolation. By identifying magnetic neutral points and tracking changes in the total flux within each topological domain, we construct an overall picture of how open and closed flux is transported as the coronal field reverses its polarity: