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A spring tide—popularly known as a "King Tide"—refers to the 'springing forth' of the tide during new and full moon. A neap tide—seven days after a spring tide—refers to a period of moderate tides when the sun and moon are at right angles to each other.
- Sea Level Trends
The Center for Operational Oceanographic Products and...
- Sea Level Trends
28 Σεπ 2024 · neap tide, tide of minimal range occurring near the time when the Moon and the Sun are in quadrature. This condition is geometrically defined as the time at which the line from the Earth to the Moon is at right angles to the line from the Earth to the Sun.
30 Απρ 2018 · A high tide occurs at the two bulging points and a low tide at the two points halfway between because the water is being redirected. Each location on the earth passes through these points twice a day, usually experiencing two high and low tides daily.
What is a neap tide? When the sun and moons are at right angles to each other, there is least gravitational pull, meaning the tidal range is at its lowest. The neap tide occurs 7 days after the spring tide. A neap tide is where the sun and moon are at their least aligned point. Not to scale.
This rise in water levels is primarily caused by the gravitational pull of the moon and, to a lesser extent, the sun. As the Earth rotates, certain locations align with these gravitational forces, leading to water being drawn toward them, forming what is called a tidal bulge.
Spring tides are characterized by the highest high tides and lowest low tides, occurring during new and full moons, while neap tides, with their less extreme tidal ranges, occur during the quarter moon phases.
20 Δεκ 2006 · The origins of neap–spring tidal cycles are not as simple as the equilibrium tidal theory implies and to understand them requires knowledge of both equilibrium and dynamic tidal theory and an understanding of tidal constituents.
