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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.
5 Αυγ 2021 · When the Sun is at a right angle to the Moon, moderate tides, called neap tides, result. From our view on Earth, these tides coincide with certain lunar phases since they occur when the Moon reaches specific positions in its orbit.
Spring and neap tides are unique tidal phenomena that occur twice a month, driven by the alignment of the sun, moon, and Earth. Spring tides bring extreme high and low tides, while neap tides produce more moderate tidal fluctuations.
20 Δεκ 2021 · When the solar and lunar tides are 90° out of phase, their effects cancel each other (first and last quarter). The ellipsoid approaches a circle, and consequently the tide gets a smaller amplitude. This situation is called neap tide (Fig. 3.21).
One week later, when the sun and moon are at right angles to each other, the solar tide partially cancels out the lunar tide and produces moderate tides known as neap tides. During each lunar month, two sets of spring tides and two sets of neap tides occur (Sumich, J.L., 1996).
Neap tides are a type of tidal pattern that occurs twice a month, during the first and third quarters of the moon. During neap tides, the difference between high and low tide is at its minimum. This phenomenon happens due to the gravitational pull of the sun and the moon on the Earth’s oceans.
