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neap tide |
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neap tide either of the two tides that occur at the first or last quarter of the moon when the tide-generating forces of the sun and moon oppose each other and produce the smallest rise and fall in tidal level neap tide [′nēp ‚tīd] (oceanography) Tide of decreased range occurring about every 2 weeks when the moon is in quadrature, that is, during its first and last quarter. Also known as neaps. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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For example, Pugh discusses the "age of the tide", the lag of spring and neap tides behind full and new moon at which the solar and lunar tidal forces combine. The rhythmites display layers of varying thickness, reflecting the high spring tides and low neap tides that mark the lunar month. Neap tides occur when the orbital arrangement weakens the pull on Earth's oceans. |
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