There is no Coriolis effect at the Earth's poles. And the nature of the distribution of surface water flows is influenced (except for Coriolis forces): 1) the structure of surface sediments, 2) relief, 3) properties of rocks, 3) vegetation cover, 4) microgeodynamic features of certain territories, etc.

Dr V.N.Bublias Bublias thank you for your contribution to the discussion

The Coriolis force is zero at the Equator. Though the Coriolis force is useful in mathematical equations, there is actually no physical force involved. Instead, it is just the ground moving at a different speed than an object in the air.The Coriolis Effect is not present at the Equator, and winds are the primary creators of currents. For this reason, tropical gyres tend to flow in a more east-west (instead of circular) pattern. The Indian Ocean Gyre is actually two distinct tropical gyres the northern and southern Indian Ocean Gyres. The continents act as barriers to surface currents. When a surface current flows against a continent, the current is deflected and divided. The rotation of the Earth on its axis deflects the atmosphere toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths. The deflection of the atmosphere sets up the complex global wind patterns which drive surface ocean currents. The Coriolis deflection is greatest at the poles and decreases at lower latitudes. There is no Coriolis Effect for objects that move directly east to west or west to east at the equator. As the latitude at which horizontally and freely moving objects are located increases, the twisting of the underlying Earth's surface due to the planet's rotation increases. That is the Coriolis Effect increases as the latitude increases. It is maximum at the poles and is absent at the equator. Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis Effect. The Coriolis force acts on an air or water parcel no matter which direction it is traveling, North, South, East, or West. The Coriolis force increases from the Equator to the poles, where it is strongest. The surface winds created by the atmospheric convection cells are also influenced by the Coriolis Effect as they change latitudes. The Coriolis Effect deflects the path of the winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. Like the surface water, however, the deeper water is deflected by the Coriolis effect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. As a result, each successively deeper layer of water moves more slowly to the right or left, creating a spiral effect.