Tide
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A tide is the periodic rising and falling of Earth's ocean surface caused by the tidal forces of the Moon and the Sun acting on the oceans. Tides cause changes in the depth of marine (sea) and estuarine (river mouth) waters. Tides also make oscillating currents known as tidal streams. This means that being able to predict the tide is important for coastal navigation. The strip of seashore that is under water at high tide and exposed at low tide, called the intertidal zone, is an important ecological product of ocean tides.
Other pages
Other websites
- Oceanography: tides by J. Floor Anthoni (2000).
- Myths about Gravity and Tides by Mikolaj Sawicki (2005).
- Tidal Misconceptions by Donald E. Simanek.
- Our Restless Tides: NOAA's practical & short introduction to tides.
- Tides and centrifugal force: Why the centrifugal force does not explain the tide's opposite lobe (with nice animations).
Tide predictions
- National Oceanic and Atmospheric Administration (NOAA)
- Graphical Tide Calendars
- WWW Tide and Current Predictor
- XTide Tide Prediction Server
- Earth tides calculator
- Tides: Why They Happen -- Beaufort County Library
- Department of Oceanography, Texas A&M University
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