33 citations · 104 across the 10 of their papers we have counts for
10 papers
The recent anomalously weak polar field does not imply a weak field at solar cycle 25 minimum
Zi-Fan Wang, Jie Jiang, Yukun Luo +3
The ongoing solar cycle 25 has progressed past its peak of sunspot numbers, being stronger than the previous cycle 24. However, the present polar field is rather weak compared to p…
Observation-Based Iterative Map for Solar Cycles. II. The Gnevyshev-Ohl Rule and its Generation Mechanism
Zi-Fan Wang, Jie Jiang, Jing-Xiu Wang
The Gnevyshev-Ohl (G-O) rule, or even-odd effect, is an important observational phenomenon in solar cycles, originally suggesting that even-numbered cycles are typically followed b…
Observation-Based Iterative Map for Solar Cycles. I. Nature of Solar Cycle Variability
Zi-Fan Wang, Jie Jiang, Jing-Xiu Wang
Inter-cycle variations in the series of 11-year solar activity cycles have a significant impact on both the space environment and climate. Whether solar cycle variability is domina…
Long-term variation of the solar polar magnetic fields at different latitudes
Shuhong Yang, Jie Jiang, Zifan Wang +10
The polar magnetic fields of the Sun play an important role in governing solar activity and powering fast solar wind. However, because our view of the Sun is limited in the eclipti…
Meridional flow in the solar polar caps revealed by magnetic field observation and simulation
Shuhong Yang, Jie Jiang, Zifan Wang +10
As a large-scale motion on the Sun, the meridional flow plays an important role in determining magnetic structure and strength and solar cycle. However, the meridional flow near th…
Complexity of emerging magnetic flux during lifetime of solar ephemeral regions
Hanlin Yang, Chunlan Jin, Zifan Wang +1
As a relatively active region, ephemeral region (ER) exhibits highly complex pattern of magnetic flux emergence. We aim to study detailed secondary flux emergences (SFEs) which we…
The nonuniformity of poleward flux transport on the solar surface: a statistical method applied to solar cycles 21-24
Zi-Fan Wang, Jie Jiang, Jing-Xiu Wang
The poleward migration of the active regions' magnetic flux on the solar surface plays an important role in the development of the large-scale field development, especially the pol…
Sunspot tilt angles revisited: Dependence on the solar cycle strength
Qirong Jiao, Jie Jiang, Zi-Fan Wang
The tilt angle of sunspot groups is crucial in the BL type dynamo. Some studies have shown that the tilt coefficient is anti-correlated with the cycle strength. If the anti-correla…
Algebraic quantification of an active region's contribution to the solar cycle
Zi-Fan Wang, Jie Jiang, Jing-Xiu Wang
The solar dipole moment at cycle minimum is considered to be the most successful precursor for the amplitude of the subsequent cycle. Numerical simulations of the surface flux tran…
Activity Complexes and A Prominent Poleward Surge During Solar Cycle 24
Zi-Fan Wang, Jie Jiang, Jie Zhang +1
Long-lasting activity complexes (ACs), characterised as a series of closely located, continuously emerging solar active regions (ARs), are considered generating prominent poleward…