Articles | Volume 4, issue 4
https://doi.org/10.5194/wcd-4-1087-2023
https://doi.org/10.5194/wcd-4-1087-2023
Research article
 | 
07 Dec 2023
Research article |  | 07 Dec 2023

Identifying quasi-periodic variability using multivariate empirical mode decomposition: a case of the tropical Pacific

Lina Boljka, Nour-Eddine Omrani, and Noel S. Keenlyside

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Short summary
This study examines quasi-periodic variability in the tropical Pacific on interannual timescales and related physics using a recently developed time series analysis tool. We find that wind stress in the west Pacific and recharge–discharge of ocean heat content are likely related to each other on ~1.5–4.5-year timescales (but not on others) and dominate variability in sea surface temperatures on those timescales. This may have further implications for climate models and long-term prediction.