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Features: December 2010

tide guage

A Short History of Tide Observation in the U.S.

Measurements of tides and water levels play a major role in the lives of those living, working, or sailing around our nation's coasts. For more than 200 years, NOAA has measured, processed, and made tide information available to those who need it, from weather forecasters, to coastal managers, vessel captains, and recreational boaters. Take a journey through history to learn how tide measurement has changed over time.