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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 ...
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 ...
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.
A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [1] Common chart datums are lowest astronomical tide (LAT) [1] and mean lower low water (MLLW).
The semi-diurnal tides go through one full cycle (a high and low tide) about once every 12 hours and one full cycle of maximum height (a spring and neap tide) about once every 14 days. The semi-diurnal tide (one maximum every 12 or so hours) is primarily lunar (only S 2 is purely solar) and gives rise to sectorial (or sectoral) deformations ...
Lomaland was a Theosophical community in Point Loma in San Diego, California, from 1900 to 1942. Theosophical Society leader Katherine Tingley founded it in 1900 as a school, cultural center, and residential facility for her followers.
Legend has it that Point Loma was named after this girl. Actually the word 'Loma' in Portuguese means light.(NOTE: Mr. Lougher was mistaken about this. "Loma" is a Spanish word meaning "hill". The original name of the peninsula was "La Punta de la Loma de San Diego", meaning Hill Point of San Diego. This was later anglicized to Point Loma. [21 ...
Cotidal lines connect points which reach high tide at the same time and low tide at the same time. In Figure 1, the low tide lags or leads by 1 hr 2 min from its neighboring lines. Where the lines meet are amphidromes, and the tide rotates around them; for example, along the Chilean coast, and from southern Mexico to Peru, the tide propagates ...