Sudden stratospheric warming (SSW) events are identified to investigate their
influence on the equatorial tropospheric climate. Composite analysis of
warming events from Era-Interim (1979–2013) record a cooling of the tropical
lower stratosphere with corresponding changes in the mean meridional
stratospheric circulation. A cooling of the upper troposphere induces enhanced
convective activity near the equatorial region of the Southern Hemisphere and
suppressed convective activity in the off-equatorial Northern Hemisphere.
After selecting vortex splits, the see-saw pattern of convective activity in
the troposphere grows prominent and robust
