Tides occur when the gravity of the moon partially cancels out Earth's gravity, allowing a bulge to form in the water on Earth's surface. One high tide occurs directly underneath the moon, while another occurs on the opp... More »

www.reference.com Science Weather & Tides

Tides are caused by a combination of three factors: the moon's gravity, the sun's gravity and the earth's own gravity. The moon's gravity is the most significant of these forces; it exerts 2.2 times more force on the tid... More »

Spring tides occur twice a month during the full and new moons. Spring tides are the result of the alignment of the Sun, Moon and Earth and the effects of their gravitational forces. Spring tides are also high tides. More »

Every 24 hours and 50 minutes, the Earth experiences two high tides and two low tides. High tides occur every 12 hours and 25 minutes. From high tide to low tide is a span of six hours and 12.5 minutes. More »

Low barometric pressure is caused by warm air from the planet's surface rising, decreasing the amount of air pulled downward by Earth's gravity. This rising heat can lead to adverse weather conditions. More »

Tidal energy comes from the rising and falling of oceanic tides, where water moves because of the gravitational relationship between the Earth and the moon. The Earth's rotation is also a component of tidal energy. Tidal... More »

Spring tides occur twice each lunar month, at new moon and at full moon. At these times, the sun, moon and Earth are nearly aligned, which increases gravitational pull on the oceans and results in higher-than-average hig... More »

www.reference.com Science Weather & Tides