Nonlinear evolution of unstable solar inertial modes: The case of viscous modes on a differentially rotating sphere

Muneeb Mushtaq, Damien Fournier, Rama Ayoub +2

On the Sun, the inertial mode with the largest observed amplitude (rms velocity exceeding $10$ m/s) is the high-latitude mode with longitudinal wavenumber $m=1$. In two dimensions,…