Fig. 1: Characteristics of the central and eastern Atlantic Niño.
From: Formation mechanisms of the Central and Eastern Atlantic Niño
Composites of June–July mean sea surface temperature anomalies (SSTA) (shading and contours, °C) from the Hadley Centre Global Sea Ice and Sea Surface Temperature (HadISST) and 850hPa wind anomalies (vectors, m s−1) from the European Centre for Medium-Range Weather Forecasts (ECMWF) Reanalysis v5 (ERA5) during (a) central Atlantic Niño (CAN) and (b) eastern Atlantic Niño (EAN) events. Blue contours indicate warm SSTA higher than 0.55°C with an interval of 0.1°C. Purple line indicates the equator. c, d Same as a, b, but for sea surface height anomalies (SSHA) (shading, cm) and ocean current anomalies averaged over the upper 30 m (vectors, cm s−1) from ECMWF Ocean Reanalysis System 5 (ORAS5). Hatching and gray arrows represent anomalies that are not statistically significant at the 95% confidence level. e, f show composites of CAN index and EAN index during CAN and EAN events, respectively.
