|This shows the predictions
of the three strong pIOD events with and without ENSO influence. For the 2006
and 1994 events, the results are very similar at all lead times. For the 1997
event, El Nino signal does help to reduce the false alarms in 1997 fall and
is important for the prediction of the warm signal in 1998. But the long-lead
time predictions of this IOD event are very similar even without the El Nino.