Fig. 2: Inter-model discrepancies in the forced response of the zonal SST gradient across the equatorial Pacific to greenhouse gas forcing. | Communications Earth & Environment

Fig. 2: Inter-model discrepancies in the forced response of the zonal SST gradient across the equatorial Pacific to greenhouse gas forcing.

From: Paleoclimate proxy records suggest reduced tropical Pacific zonal asymmetry under sustained global warming

Fig. 2

a Changes in the SST difference (units: °K) between the western Pacific (5°S-5°N, 110°E-180°) and the eastern Pacific (5°S-5°N, 180°-80°W) relative to the climatology over 1950–1969 in CanESM5 under the CMIP6 historical protocol (1950–2014) and the SSP3-7.0 (2015–2100) scenario with the line and shading denoting the ensemble mean and two standard deviations across 50 ensemble members. b Ensemble-mean SST anomalies averaged over 2081–2100 relative to the climatology over 1950–1969, in which the tropical mean (30°S-30°N) is removed to highlight spatial inhomogeneity. c SST anomalies averaged over the years 131–150 of the CMIP6 abrupt-4×CO2 experiment relative to the corresponding pre-industrial control simulation for a single member of CanESM5, in which the tropical mean is removed. d–f Same as in a–c but for CESM2 and related large ensemble simulations (50 ensemble members with smoothed biomass burning emissions). g–i Same as in a–c but for GFDL-ESM2M under the CMIP5 historical protocol (1950–2004) and the RCP8.5 (2005–2100) scenario for 30 ensemble members and the abrupt-4×CO2 (131–150) scenario for a single member.

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