Evidence
同一模型与写作位置 · 提供检索文献片段 · 首次输出
In Babcock–Leighton dynamo models, the poloidal flux generated at the surface must be transported back to the base of the convection zone, and a poleward meridional circulation at the solar surface provides the required return path.
提供给 Evidence 版本的文献片段
A mean-field Babcock-Leighton solar dynamo model with long-term variability ↗
At the same time, the magnetic field of the following spot will also decay and connect with the polar magnetic field, which has opposite polarity. This process will at some point annihilate the flux in the polar region, causing a poloidal polarity reversal. In this case the poloidal and toroidal fie…
展开完整文献摘录
At the same time, the magnetic field of the following spot will also decay and connect with the polar magnetic field, which has opposite polarity. This process will at some point annihilate the flux in the polar region, causing a poloidal polarity reversal. In this case the poloidal and toroidal fields regeneration processes are spatially separated (recall Figure 1 h to Figure 1 j); a mechanism transporting the new polar surface magnetic flux generated by the Babcock-Leighton mechanism to the bottom of the convection zone is necessary. Facing this requirement, initially a meridional circulation flow was assumed in Babcock-Leighton dynamo modeling. As a matter of fact, a poleward meridional flow is indeed observed at the solar surface ( Duvall Jr,, 1979 ) .