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Approximately twice a month, around new moon and full moon when the Sun, Moon, and Earth form a line (a configuration known as a syzygy [7]), the tidal force due to the Sun reinforces that due to the Moon. The tide's range is then at its maximum; this is called the spring tide.
- Tide (Disambiguation)
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- Tidal range
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- Tide (Disambiguation)
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.
Spring tides occur at the second and fourth (last) quarters of the lunar phases. By contrast, during neap tides, when the Moon and Sun's gravitational force vectors act in quadrature (making a right angle to the Earth's orbit), the difference between high and low tides (neap range) is smallest.
The dates of spring tides and neap tides, approximately seven days apart, can be determined by the heights of the tides on the classic tide tables: a small range indicates neaps and large indicates springs. This cycle of tides is linked to the phases of the moon, with the highest tides (spring tides) occurring near full moon and new moon.
Spring tide essentially is the two tides where the sea is at its most extreme; the highest and lowest. In contrast, a neap tide is one where the difference between the high and low tides is at its lowest.
30 Απρ 2018 · Both the moon and sun exert a gravitational tug upon the earth, the force of which produces tides in the World Ocean. The relative positions of the three celestial bodies determines the timing of the most and least pronounced tidal ranges, known respectively as spring and neap tides.
28 Σεπ 2024 · spring tide, tide of maximal range, near the time of new and full moon when the Sun and Moon are in syzygy— i.e., aligned with the Earth. Conjunction is the time during new moon when the Sun and Moon lie on the same side of the Earth.
