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The Napa River is a river approximately 55 miles (89 km) long in the U.S. state of California. It drains a famous wine-growing region called the Napa Valley , in the mountains north of the San Francisco Bay .
Tide tables, sometimes called tide charts, are used for tidal prediction and show the daily times and levels of high and low tides, usually for a particular location. [1] Tide heights at intermediate times (between high and low water) can be approximated by using the rule of twelfths or more accurately calculated by using a published tidal ...
Tidal range is the difference in height between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun, by Earth's rotation and by centrifugal force caused by Earth's progression around the Earth-Moon barycenter. Tidal range depends on time and location.
Tide flow information is most commonly seen on nautical charts, presented as a table of flow speeds and bearings at hourly intervals, with separate tables for spring and neap tides. The timing is relative to high water at some harbour where the tidal behaviour is similar in pattern, though it may be far away.
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The Napa River-Napa Creek Flood Protection Project is a flood control project of the US Army Corps of Engineers in the city of Napa, California. The Project area includes some 6 miles (9.7 km) of the Napa River from the Butler Bridge on State Route 29 on the south to Trancas Street on the north.
User:Darkest tree/sandbox/List of counties in California; User:Nyttend/County templates/CA/2; User:Patapsco913/sandbox; Template:Napa County, California; Category:Populated places in Napa County, California; Category:Wikipedia requested photographs in Napa County, California
In many parts of the world the tides approximate to a semi-diurnal sine curve, that is there are two high- and two low- tides per day. As an estimate then each period equates to 1 hour, with the tide rising by 1, 2, 3, 3, 2, finally 1 twelfths of its total range in each hour, from low tide to high tide in about 6 hours, then the tide is ...