Why the position of the ocean ellipse change?

The position of the ocean ellipse changes due to factors such as ocean currents, tides, wind patterns, and the Earth's rotation. Variations in water temperature and salinity can also influence the density and movement of ocean water, leading to shifts in the ocean ellipse. Additionally, atmospheric conditions and seasonal changes play a role in altering the distribution of water masses and the overall shape of the ocean surface. These dynamic processes contribute to the continuous movement and reconfiguration of the ocean ellipse.