//cdn1.membean.com/public/data/treejson onym_name. 1  E-Mail: Subscribe by E-Mail. 2  Twitter: Follow @membean on Twitter. 3  Facebook: Find us on facebook. 4  Listen MP3: RSS Feed | iTunes.
Noun [edit]. neap tide â(plural neap tides). 1  The tide which occurs just after the first and third quarters of the moon, when there is least difference between high tide and low tide. 2  Spring tides occur when the Sun and Moon line up, since the gravities of the two bodies add together to create larger tidal forces.
Measuring tides. Tides are the periodic and predictable rise and fall of the Earthâs ocean surface, caused by gravitational and rotational forces of the Earth, Moon and Sun acting on the water. Tides can vary in size, power and frequency due to geographical location and the positions of the Sun and Moon.Generally there are two high tides a day which are the result of the forces generated by the Earth and the Moon.ides can vary in size, power and frequency due to geographical location and the positions of the Sun and Moon. Generally there are two high tides a day which are the result of the forces generated by the Earth and the Moon.