Αποτελέσματα Αναζήτησης
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
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.
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. The other syzygy condition, opposition, occurs during full moon.
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.
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. Let's start with spring tides.
During these Moon phases, the solar tide coincides with the lunar tide because the Sun and the Moon are aligned with Earth, and their gravitational forces combine to pull the ocean’s water in the same direction. These tides are known as spring tides or king tides.
Spring tides are particularly large close to the equinoxes (21 March and 21 September) when the sun is overhead at the equator. Other astronomical factors can cause tides to be larger than average. The tides are slightly greater when the moon is closest to Earth in its orbit, at perigee.
