Fig. 4: TP winter cooling associated SST anomalies.
From: Extreme Tibetan Plateau cooling caused by tropical volcanism
a Regressed boreal-winter SST anomaly (shading, K) onto the negative TP winter SAT anomaly from 1880-2020. Stippling indicates anomalies significant at the 95% confidence level. b Difference of composite SAT (K) in the MME between AMIP and historical runs for boreal winters of 1982 and 1991. Dark boxes denote the Niño3.4 and North Atlantic regions. The NAO index is defined by the SAT difference between the lower and upper boxes over the North Atlantic regions.
