Fig. 2: The SPB in the ROM.
From: El Niño and La Niña asymmetry in short-term predictability on springtime initial condition
a Same as Fig. 1a, expect for the results from ROM where \({\beta }_{1}\) = 0. b Same as a except for \({\beta }_{1}\) = 0.6. c The modulation of SPBs under different \({\beta }_{1}\) in ROM. d In the perfect model framework, the anomaly correlation coefficient (ACC) of the forecasts starting from different initial months when \({\beta }_{1}\) = 0 in the ROM. The red and blue lines represent the El Niño and La Niña years, respectively. e Same as d, except for \({\beta }_{1}\) = 0.6. f Same as e, expect we use ROM to forecast the observation. using observation as “truth”, respectively.
