Every 6 hours, up to 400 million cubic meters of water rush through the narrow Saltstraumen strait, which is 150 meters wide and 3 kilometers long.
Tides are a phenomenon where sea and river waters rise and fall in a cyclical pattern influenced by astronomical changes. In Sino-Vietnamese, “thủy” means water, while “triều” refers to the intensity of water rising and falling. The gravitational changes from the Moon (the primary influence) and other celestial bodies like the Sun (to a lesser extent) at any point on the Earth’s surface, while the Earth rotates, create the phenomenon of water rising (high tide, commonly referred to as “nước lớn”) and water receding (low tide, known as “nước ròng”) at certain times of the day. Tides generate oscillating flows known as tidal currents. The moment when the tidal current stops moving is called slack water. |
