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Taha Rehman ∙
Two different ways to classify times are the Diurnal Tide and the Semi-diurnal Tide. A diurnal tide has one episode of high water and one episode of low water each day. A semi-diurnal tide has two episodes of equal high water and two episodes of low equal water each day. They are both also classified as astronomical tides, meaning they are influenced by gravitational actions of the sun, moon and Earth.
Ebba Hoeger ∙
It is a linear expression.
wasn't noticed