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CHS is a world leader in the adoption of hydrographic survey technology, as well as in research and development. With responsibility for charting the world's longest coastline (243,792 kilometres) as well as 6.55 million square kilometres of continental shelf and territorial waters (second largest in the world), including extensive inland waterways such as the St. Lawrence Seaway, CHS ...
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 ...
On nautical charts, the top of the chart is always true north, rather than magnetic north, towards which a compass points. Most charts include a compass rose depicting the variation between magnetic and true north. However, the use of the Mercator projection has drawbacks. This projection shows the lines of longitude as parallel.
According to historian Raymond Douville, this point is the origin of the name Grondines, probably given by the boaters who had to go around, at the rising tide, the many pebbles that the waves hit in dull roars and whose echoes resonated on the escarpments of the coast. [23] Tide Table, Government of Canada, Statons Grondines - 03325
Fisheries and Oceans Canada (DFO; French: Pêches et Océans Canada, MPO) is a department of the Government of Canada that is responsible for developing and implementing policies and programs in support of Canada's economic, ecological and scientific interests in oceans and inland waters. Its mandate includes responsibility for the conservation ...
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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 station is situated on a small islet, accessible by land for only two hours during low tide; visitors can become stranded by the incoming tide which rapidly rises at a rate of five feet per hour. [1] Roads and ferries connect mainland Canada to Campobello Island, but the final path to the lighthouse can only be traversed on foot. [5]