Earth Sciences

Multi-year La Niña frequency tied to southward tropical Pacific wind shift

G. Wang and A. Santoso

Discover how prolonged La Niña events reshape our climate systems in an exciting study by Guojian Wang and Agus Santoso. This research uncovers the intricate relationship between consecutive La Niña occurrences and heat discharge in the upper equatorial Pacific, revealing crucial insights for climate prediction.

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Abstract

Multi-year La Niña events cause prolonged climate disruptions worldwide. This study, using observations and CMIP6 models, reveals a link between the frequency of consecutive La Niña events and the upper equatorial Pacific Ocean's heat discharge. A southward tropical Pacific wind shift during austral summer promotes this heat discharge, influencing thermocline tilt and contributing to the nonlinear El Niño-Southern Oscillation system. The large inter-model spread highlights the need for improved model constraints for reliable climate prediction.

Publisher

npj Climate and Atmospheric Science

Published On

Sep 30, 2024

Authors

Guojian Wang, Agus Santoso

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