SOLARNET Conference: The Many Scales of the Magnetic Sun

Recently, there has been consideration of two possible methods for the nonlinear modulation of solar cycle amplitudes. The first mechanism, known as Tilt Quenching (TQ), involves a negative feedback relationship between the cycle amplitude and the mean tilt angle of bipolar active regions relative to the azimuthal direction. The second mechanism, known as Latitude Quenching (LQ), involves a positive correlation between the average emergence latitude of active regions and the cycle amplitude.
Here we study the effects of quenching parameters on the Surface Flux Transport (SFT) models and the effects of implementing the surface inflows into the SFT models on the two different observable nonlinearities: TQ and LQ
Our SFT models are grid-based. We have methodically investigated the extent of nonlinearity caused by TQ and LQ, as well as their combination in the presence of surface inflows.
A preliminary result is that there is a linear dependence of quenching parameters on the dipole moment. This is expected from the model. A second finding is that the effects of introducing surface inflows to the SFT models will produce lower values of dipole moments for the different cases of quenching in the solar cycle.