Fig. 4From: Reconciling opposite trends in the observed and simulated equatorial Pacific zonal sea surface temperature gradientSST gradient trends (units: ℃/100 yr) from 1981 to 2010 before and after the observational IPO phase transition adjustments. White, brick red, purple, and blue bars represent observed SST gradient trends, externally forced SST gradient trends, IPO-related SST gradient trends, and total SST gradient trends after adjustments obtained from ACCESS-ESM1-5 (a), CanESM5 (b), EC-Earth3 (c), FGOALS-g3 (d), MIROC6 (e), and MPI-ESM (f) separately. Error bars represent one standard deviation of model intervals. Numbers in parentheses indicate the percentage of the IPO-related SST gradient trend relative to the observed SST gradient trendBack to article page