Abstract: This talk focuses on some investigations into a recently developed non-linear, three-dimensional Pacific equatorial model for ocean dynamics. The development of the model had been motivated by observations and the model is able to capture some essential properties of the flow in the Pacific equatorial region. Analysis of velocity field and flow paths indicate that several known and unknown features (which are essentially non-linear and three dimensional such as upwelling/downwelling, cellular flow structures, divergence of flow from the equator and extra-equatorial flows, subsurface ocean ‘bridge’ in the equatorial direction and sharp change in gradient of the flow path) exist and can be simulated by the model.