Tides are the rising and lowering of sea level during the day and are caused by the gravitational effects of the Sun and Moon on the oceans. This bending action is called wave refraction and is respon...Tides are the rising and lowering of sea level during the day and are caused by the gravitational effects of the Sun and Moon on the oceans. This bending action is called wave refraction and is responsible for creating the longshore current and longshore drift—the process that moves sand along the coasts. When the longshore current deposits sand along the coast into quieter waters, the sand can accumulate, creating a spit or barrier called a baymouth bar, which often blocks bays and harbors.
Tides are the rising and lowering of sea level during the day and are caused by the gravitational effects of the Sun and Moon on the oceans. This bending action is called wave refraction and is respon...Tides are the rising and lowering of sea level during the day and are caused by the gravitational effects of the Sun and Moon on the oceans. This bending action is called wave refraction and is responsible for creating the longshore current and longshore drift—the process that moves sand along the coasts. When the longshore current deposits sand along the coast into quieter waters, the sand can accumulate, creating a spit or barrier called a baymouth bar, which often blocks bays and harbors.
