Abstract
AbstractThe decay time of El Niño events is considered to be an important factor in determining whether or not the northern tropical Atlantic (NTA) warming occurs in boreal spring of El Niño decaying years. Through coupled model experiments with different types of sea surface temperature anomalies specified in the tropical Pacific domain, the present study illustrates that the NTA warming is larger and more persistent during slow than fast decaying El Niño events. The amplitude of El Niño events is shown to be another important factor in the difference of the spring NTA warming between slow and fast decaying El Niño events. The NTA warming difference is mainly attributed to the wind speed‐related latent heat flux difference in preceding winter according to the model simulations and the observations. The differences of NTA wind and SST variations between slow and fast decay El Niño simulations are mostly consistent with the observations.
Published Version
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