Spring tide normally happens monthly when the new moon or full moon occurs. This is the time also when the high and low tides occur at the new or full moon and there are allot of changes in moods in people as well.
http://answers.ask.com/Reference/Nature/what_is_a_sprin...
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When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low. This is known as a spring high tide. Spring tides are especially strong tide...
http://wiki.answers.com/Q/What_is_a_spring_tide
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Explains with graphs and pictures how the moon affects oceans. Includes the differences between lunar, spring, neap, high, and low tides. ... The Proxigean Spring Tide is a rare, unusually high tide. This very high tide occurs when the moon is both unusually close to the Earth (at its closest perigee, called the proxigee)
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home.hiwaay.net/~krcool/Astro/moon/moontides/
home.hiwaay.net/~krcool/Astro/moon/moontides/
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The Proxigean Spring Tide is a rare, unusually high tide. This very high tide occurs when the moon is both unusually close to the Earth (at its closest perigee, called the proxigee) and in the New Moon phase (when the Moon is between the Sun and the Earth).
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www.enchantedlearning.com/subjects/astronomy/moon/Tides...
www.enchantedlearning.com/subjects/astronomy/moon/Tides.shtml
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Tide - Wikipedia, the free encyclopedia
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Tides are the rise and fall of sea levels caused by the combined effects of the rotation of the Earth and the gravitational forces exerted by the Moon and the Sun. The tides occur with a period of ap...
en.wikipedia.org/wiki/Tide
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When the sun and moon are aligned, there are exceptionally strong gravitational forces, causing very high and very low tides which are called spring tides, though they have nothing to do with the season. ... Geographical position determines the level of tide. In Northern California there are two unequal tides each day.
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www.sfgate.com/getoutside/1996/jun/tides.html
www.sfgate.com/getoutside/1996/jun/tides.html
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Spring Tides and Neap Tides ... For example, particularly large tides are experienced in the Earth's oceans when the Sun and the Moon are lined up with the Earth at new and full phases of the Moon. These are called spring tides (the name is not associated with the season of Spring).
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csep10.phys.utk.edu/astr161/lect/time/tides.html
csep10.phys.utk.edu/astr161/lect/time/tides.html
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Perigean spring tide - Wikipedia, the free encyclopedia
A perigean spring tide is when the moon is closest to the Earth during the spring tide. The moon's orbit around the Earth is elliptical which causes the moon to be closer to the Earth and farther aw...
en.wikipedia.org/wiki/Perigean_spring_tide
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