Fig. 7: Schematic of the diabatic central Pacific (CP) ENSO dynamics and the positive feedback to CP ENSO.
From: Subsurface ocean turbulent mixing enhances central Pacific ENSO

a, b represent the El Niño and La Niña growing stages, respectively; the contrast diabatic effects on the eastern Pacific (EP) region is also shown. Shading on the x-z section denotes the monthly \({N}^{2}\) anomalies (\({N}^{2{\prime} }\)) averaged over SON of El Niño and La Niña years since 2000, respectively, and contours are corresponding isotherms (in °C), based on IAP data (see Methods).