Extended Data Fig. 1: Idealized Walker circulation structure.
From: ENSO complexity controlled by zonal shifts in the Walker circulation
Zonal profiles of zonal wind stresses (ZWS, a), sea surface temperatures (SST, b) and thermocline depth (TD, c) in a longitudinal strip spanning the equatorial Pacific (black lines and fillings). The circulation can vary in terms of its warm pool extent χ, and thermocline depth can additionally vary in terms of its basin-wide average hM (blue dashed lines). We adjust these variables in the figure in order to match observed temporal averages of ZWS, SST and TD (purple dashed lines). Observed temporal average of outgoing longwave radiations (OLR) is displayed in (a) as an indicator of convective heating over the warm pool that drives the atmospheric part of the circulation.
