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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 ...
Nehalem Bay at the mouth of the Nehalem River on the Pacific Ocean. Nehalem Bay is a bay formed by the confluence of the Nehalem River with the Pacific Ocean in northern Oregon, United States. It is Oregon's fifth-largest estuary. [1] The main tributary of Nehalem Bay is the Nehalem River. Nehalem Bay drains an area of more than 850 square ...
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.
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Researchers use community-submitted king tide photos to validate climate change models. This year's King Tides Project is scheduled for Nov. 15-17 and Dec. 13-15.
The Nehalem River is a river on the Pacific coast of northwest Oregon in the United States, approximately 119 miles (192 km) long. It drains part of the Northern Oregon Coast Range northwest of Portland , originating on the east side of the mountains and flowing in a loop around the north end of the range near the mouth of the Columbia River .
The Delta, the central hub of California’s water system, is a giant network of waterways, sloughs, and islands at the confluence of the Sacramento and San Joaquin rivers. It’s home to hundreds ...
The CALFED Bay-Delta Program, also known as CALFED, is a department within the government of California, administered under the California Resources Agency.The department acts as consortium, coordinating the activities and interests of the state government of California and the U.S. federal government to focus on interrelated water problems in the state’s Sacramento–San Joaquin River Delta.