| Abstract: | Continuous helioseismic observations over the last three decades, from space (SOHO/MDI and SDO/HMI) as well as from ground (GONG), have enabled studies of variations in large scale flows in the solar interior, especially that in rotation (zonal) and meridional flows. These measurements are crucial to constrain dynamo models and hence to understand the origin and maintenance of solar magnetism. We summarise recent progress in such helioseismic studies of solar interior, focussing on the dynamics of near-surface shear layer (NSSL) as well as the tachocline, and their connections to magnetic fields and the solar cycle. |
