Satellite observations of the Pacific tropical instability wave characteristics and their interannual variability

摘要: Descriptions of tropical instability wave (TIW) characteristics in the Pacific Ocean as a function large-scale climate conditions and interannual variability, such El Nino southern oscillation, are made based on satellite data. As others have found, TIW ocean–atmosphere coupling is caused by atmospheric boundary layer mixing. Our observational investigation extends some these previous findings suggests that this mechanism coupled variability wind sea surface temperature may occur not only during La Nina years, when TIWs more active, but whenever active. The height anomaly covariability phase shift might also independent season activity. There evidence activity increases under strengthened stress either years or, analogy, oceanic numerical simulations carried out with stronger stress. Observational results show larger wavelengths shorter periods ocean action On study occurs Ninna prevail equatorial Pacific.