Fig. 1: Model-simulated temporal evolution and spatial distributions of trends in Sea-level pressure (SLP) during the period of 1980-2015 in MPI-GE.
From: A very likely weakening of Pacific Walker Circulation in constrained near-future projections
a Time series of the 9-year running mean of SLP anomaly differences [units: Pa] between equatorial central/eastern Pacific (5°S-5°N, 160°-80°W) and the Indian Ocean/western Pacific (5°S-5°N, 80°-160°E) outlined by rectangles in b-e. Black lines are derived from the HadSLP2, ERAIM and ERA5 datasets. Red line denotes the ensemble mean of the 100 MPI-GE members. The yellow and blue lines denote 10 ensemble members showing the largest strengthening (Max10) and weakening (Min10) of the PWC during 1980–2015. The uncertainty captured by the red shading is solely due to internal variability. b–e Spatial distributions of trends in SLP [units: Pa (36 year)−1] derived from HadSLP2, MPI-GE ensemble mean, Max10, and Min10, respectively. Slant hatching denotes trends significant at the 95% confidence level.
