Fig. 4: Contribution of different ENSO events to linear and nonlinear SIPNet skill.
From: ENSO’s impact on linear and nonlinear predictability of Antarctic sea ice

a Contribution of El Niño on linear SIPNet skill, calculated as the difference between linear SIPNet skill under El Niño and neutral conditions, divided by the linear SIPNet skill under neutral conditions. The impact of El Niño on nonlinear SIPNet skill is calculated using a similar methodology. b Same as (a) but for La Niña.