Rivers flow downhill, and sources are usually high in the mountains where water comes. So firstly, rivers flow down due to gravity, not south. But it seems water flows from north to south.
A river that flows between its sides is known as a channel. It creates many paths or delta by its flow. Most of the river flows from north to south due to the Coriolis effect and gravity.
Why do most rivers flow south?
River water flowing down hits the mouth and enters the ocean. When something moves into the Northern and Southern hemispheres, the Earth’s rotation creates Coriolis force. That’s why the river in the Northern hemisphere turns to the right. The east or west depending on where the river’s flowing. The Earth’s rotation is the most important factor in determining where this river water goes. The Coriolis force scales work exactly as the sine of the latitude.
- By moving north, it gets bigger and positive.
- By moving south, it gets negative.
If you go in the northern hemisphere, the river water turns to the right. This happens for the effect of Coriolis force. So it’s turning to the side and flowing along the coast.
Anywhere of the water flow direction depends on location. That makes sense because the water flows clockwise in the southern hemisphere due to the Earth’s rotation. And the water’s going counterclockwise in the northern hemisphere.
The earth’s diameter at the equator at 40,000,76 kilometers is much greater than at the poles at zero kilometers. The land of the equator is moving lots faster than the land everywhere else, about 1638 kilometers per hour at the equator, compared to about half that at 60 degrees north latitude. Coriolis influences objects traveling across the face of the earth due to this constant eastward rotation.
If you tried to throw a baseball from the equator up to your friend standing at the North Pole, your ball would appear to veer to the right. The reason is, it would maintain the greater momentum of the place it started from. Although the Coriolis effect is a thing, applying this principle to draining water in Earth’s two hemispheres is just bunk. The Coriolis effect influence bigger, slower-moving fluids, global air, and ocean currents.
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