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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 ...
Tide tables forecast the time of the next high water. [6] [7] The difference between these two times is the lunitidal interval. This value can be used to calibrate tide clock and wristwatches to allow for simple but crude tidal predictions. Unfortunately, the lunitidal intervals vary day-by-day even at a given location.
NSW Planning & Environment webpage 1 Shore length is not a well-defined measure . Port Stephens , an open youthful tide-dominated drowned-valley estuary , [ 1 ] is a large natural harbour of approximately 134 square kilometres (52 sq mi) [ 2 ] located in the Hunter and Mid North Coast regions of New South Wales , Australia.
Tide range is the vertical distance between the highest high tide and lowest low tide. The size of the lunar tide compared to the solar tide (which comes once every 12 hours) is generally about 2 to 1, but the actual proportion along any particular shore depends on the location, orientation, and shape of the local bay or estuary.
The Parramatta River is an intermediate tide-dominated, drowned valley estuary [2] located in Sydney, New South Wales, Australia. With an average depth of 5.1 metres (17 ft), [3] the Parramatta River is the main tributary of Sydney Harbour, a branch of Port Jackson. Secondary tributaries include the smaller Lane Cove and Duck rivers.
The Georges River, also known as Tucoerah River, [1] is an intermediate tide-dominated drowned valley estuary, [5] that is located in Sydney, Australia.The Georges River is located south and south-west from the Sydney central business district, with the mouth of the river being at Botany Bay.
A king tide is an especially high spring tide, especially the perigean spring tides which occur three or four times a year. King tide is not a scientific term, nor is it used in a scientific context. The expression originated in Australia, New Zealand and other Pacific nations to
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).