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The dates of spring tides and neap tides, approximately seven days apart, can be determined by the heights of the tides on the classic tide tables: a small range indicates neaps and large indicates springs. This cycle of tides is linked to the phases of the moon, with the highest tides (spring tides) occurring near full moon and new moon.
Tide tables give the height of the tide above a chart datum making it feasible to calculate the depth of water at a given point and at a given time by adding the charted depth to the height of the tide. One may calculate whether an area that dries is under water by subtracting the drying height from the [given] height calculated from the tide ...
Point Loma (Spanish: Punta de la Loma, meaning "Hill Point"; Kumeyaay: Amat Kunyily, meaning "Black Earth") [1] is a seaside community in San Diego, California, United States. Geographically it is a hilly peninsula that is bordered on the west and south by the Pacific Ocean, the east by San Diego Bay and Old Town , and the north by the San ...
Corpus Christi Bay is a natural harbor, and its port has contributed to the growth of the main port city of Corpus Christi. [4] Corpus Christi is the 5th largest port in the United States, [21] and the deepest on the Gulf of Mexico. [22] The channel to the Gulf was dredged through the bay to the jetties at Port Aransas. Freight exchanged at the ...
Sunset Cliffs is an affluent coastal community in the Point Loma community of San Diego, California. It is bordered by the Pacific Ocean to the west, Ocean Beach to the north, Catalina Blvd. and Santa Barbara St. to the east, and Sunset Cliffs Natural Park to the south. [1] The area is named for the sheer cliffs which border the ocean.
To the north, Port Mansfield was established in 1950, at the old fishing community of Red Fish Landing. It was named after United States Congressman Joseph J. Mansfield (D-TX), who introduced the bill that extended the Intracoastal Waterway from Corpus Christi to Brownsville in the 1940s. [8]
Spring tides occur at the second and fourth (last) quarters of the lunar phases. By contrast, during neap tides, when the Moon and Sun's gravitational force vectors act in quadrature (making a right angle to the Earth's orbit), the difference between high and low tides (neap range) is smallest. Neap tides occur at the first and third quarters ...
The exact interval between tides is influenced by the position of the Moon and Sun relative to the Earth, as well as the specific location on Earth where the tide is being measured. Due to the Moon's orbital prograde motion , it takes a particular point on the Earth (on average) 24 hours and 50.5 minutes to rotate under the Moon, so the time ...