Fig. 1: Atlantic Meridional Overturning Circulation’s influence on Tropical Atlantic sea surface temperature, and precipitation in CMIP6 projections.
From: AMOC weakening modulates global warming impacts on precipitation over Brazil
Linear regression map between changes (2050–2100 minus 1950–2000) in ΔAMOC* (Sv °C⁻¹) at 20°S and a ΔSST* (°C °C⁻¹); and b ΔPR* (mm day⁻¹ °C⁻¹). The contours denote the explained variance (or R2). Grey dots indicate areas where the linear regression is statistically significant (p < 0.05). Scatter plots between c ΔAMOC* at 20°S and ΔTA*; d ΔTA* versus ΔENEB*(mm day⁻¹ °C⁻¹); and e ΔAMOC* versus ΔENEB*. The orange lines represent the linear regressions: b (Y = −0.07x +0.5) with R2: 0.45, d (Y = 1.03x -0.7) with R2:0.60, and e (Y = −0.9x −0.19) with R2:0.42. Asterisks (*) indicate that all the variables are divided by ΔGSAT (°C) for each respective CMIP6 model. SST in the tropical Atlantic (ΔTA) is represented by the yellow box in (a), whereas PR in the ENEB region is represented in the magenta box.
