Strong El Niño events lead to robust multi-year ENSO predictability

The El Nino-Southern Oscillation (ENSO) phenomenon-the dominant source of climate variability on seasonal to multi-year timescales-is predictable a few seasons in advance. Forecast skill at longer multi-year timescales has been found in a few models and forecast systems, but the robustness of this predictability across models has not been firmly established owing to the cost of running dynamical model predictions at longer lead times. In this study, we use a massive collection of multi-model hindcasts performed using model analogs to show that multi-year ENSO predictability is robust across models and arises predominantly due to skillful prediction of multi-year La Nina events following strong El Nino events.

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Author Lenssen, N.
DiNezio, P.
Goddard, L.
Deser, C.
Kushnir, Y.
Mason, S. J.
Newman, M.
Okumura, Y.
Publisher UCAR/NCAR - Library
Publication Date 2024-06-28T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-10T20:00:59.019811
Metadata Record Identifier edu.ucar.opensky::articles:27308
Metadata Language eng; USA
Suggested Citation Lenssen, N., DiNezio, P., Goddard, L., Deser, C., Kushnir, Y., Mason, S. J., Newman, M., Okumura, Y.. (2024). Strong El Niño events lead to robust multi-year ENSO predictability. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7028wrg. Accessed 10 August 2025.

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