Fig. 3: Rossby wave source anomalies associated with the two Atlantic Niño types.
From: Distinct Impacts of the Central and Eastern Atlantic Niño on West Antarctic Sea Ice
a, b Regression of JJA 200-hPa Rossby wave source (RWS, shading, s−2) and wave activity fluxes (WAF, vector, m2 s−2) on the normalized JJA CANI and EANI, respectively. Gray lines denote the zonal wind climatology (contour; m s−1) during JJA. Dotted areas denote values that are statistically significant at 90% confidence level. c Area-averaged regression coefficients of RWS on normalized CANI (blue bar, -1*s−2) and EANI (red bar, -1*s−2) during JJA. The area in the subtropical South Pacific (P-box, 20°S–45°S, 100°W–150°W) and subtropical South Atlantic (A-box, 20°S–45°S, 20°W–65°W) are denoted by the magenta boxes in (a, b).
