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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. A spring tide is a common historical term that has nothing to do with the season of spring.
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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.
21 Μαΐ 2024 · A neap tide is a relatively low high tide, or a generally low tidal range between low and high tides. During the moon's first and third quarter, periods of neap tides are experienced, due to the way in which the sun and moon act on the Earth to create tides.
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.
20 Δεκ 2021 · Neap tides occur when the effect of the tidal forces of the sun and the moon on the tidal bulges cancel each other. Figure 3.22 shows an example of these tidal variations. Figure 3.22: Tidal variation in Vlissingen during more than a month in 2019.
Twice a month, when the Earth, Sun, and Moon line up, their gravitational power combines to make exceptionally high tides, called spring tides, as well as very low tides where the water has been displaced. When the Sun is at a right angle to the Moon, moderate tides, called neap tides, result.
20 Δεκ 2006 · Neap tides occur when the Sun and Moon are aligned at right angles from the Earth at first- and third-quarter phases of the Moon. The result is that spring tides are higher than neap tides (Fig. 1 E). The period of time from new Moon to new Moon is called the synodic month, which has a modern period of 29.53 days.
