Abstract: In this study, the mechanisms leading to the El Niño peak and demise are explored through a coupled general circulation model ensemble approach evaluated against observations. The results here suggest that the timing of ...

Abstract: Tropical instability waves and tropical instability vortices (TIVs) exert major controls on ocean dynamics, thermodynamics, and biology on intraseasonal to seasonal time scales. To understand the fundamental mechanisms at ...

Abstract: In a previous study, the effect of the March 1997 Westerly Wind Event (WWE) on the evolution of the tropical Pacific Ocean was studied using an ocean general circulation model (GCM). The response was characterized by (i) ...

Abstract: Tropical instability waves (TIWs) appear as monthly oscillations of the currents, sea level, and sea surface temperature of the eastern equatorial Pacific. They are understood as unstable waves feeding on the kinetic and ...

Abstract: A numerical simulation is used to investigate the mixed layer heat balance of the tropical Pacific Ocean including the equatorial cold tongue and the region of vortices associated with tropical instability waves (TIWs). ...

Abstract: ropical cyclones drive intense ocean vertical mixing that explains most of the surface cooling observed in their wake (the ?cold wake?). In this paper, the authors investigate the influence of cyclonic rainfall on the cold ...

Abstract: In this study, the processes affecting sea surface temperature variability over the 1992?98 period, encompassing the very strong 1997?98 El Niño event, are analyzed. A tropical Pacific Ocean general circulation model, ...

Abstract: The Weather Research and Forecast model at ?° resolution is used to simulate the statistics of tropical cyclone (TC) activity in the present climate of the South Pacific. In addition to the large-scale conditions, the model ...