A Strengthened Teleconnection of the Quasi‐Biennial Oscillation and Tropical Easterly Jet in the Past Decades in E3SMv1

Abstract The Energy Exascale Earth System Model version 1 (E3SMv1) is a new global model that can generate weakened tropical easterly jet (TEJ) during the quasi‐biennial oscillation (EQBO) and strengthened TEJ westerly QBO (WQBO), which referred to as QBO‐TEJ teleconnection. Although longitudinal structure of teleconnection different between reanalysis simulations, we hypothesize simulations still provide insights into observed long‐term changes in Atmospheric Intercomparison Project historical (AMIP‐historical) trend correlation indices period 1950–2014 reanalysis. comparison AMIP‐historical Coupled coupled (coupled‐historical) shows warming Indian Ocean has played vital role over past six decades.