Investigation of main current system and equatorial planetary waves in the tropical Pacific during twice untypical El Niňo events

During twice untypical El Niňo events,the central westem equatorial Pacifict part of the Walker circulation wad weaken apparently,the central eastern equatorial Pacifc part of the HIadley ctrculation was strengthened apparently.The a nomaly of west wind stress in the western equatorial Pacific was strengthened and extended easward,while thu anommly of north wind stress in the eastern equatorial Pacifie was strengthened and extended southward.Ihe energy of warm pool in the western Pacific may be transported eastward in the ways:the equatorial Kelvin wave themncline model and current model.The total energy which was transported eastward by the themtocline model was more than that by the current model.During the 1982-1983 El Niňo event,the equatorial Kelvin wave themocline model played the main role,EUC was weaken.During the 1986-1987 El Niňo event,the equatorial Kelvin wave current model played the main role,EUC was strengthened.During the twice El Niňo events,the phenanenon of EUC's disappearance and reversion was a local ocean response,is didn't propagate eastward with the equatorial Kelvin wave.