High Tide Line


In maritime context, the High Tide Line (HTL) refers to the highest point on the shore that is reached by the sea during a high tide under normal meteorological conditions, typically over a period of a year. This line is of significant importance in coastal management and maritime navigation as it demarcates the boundary between the land and the sea. It is used as a reference point in legal and regulatory contexts, particularly in relation to coastal development and conservation. The HTL is also used in the planning and execution of maritime operations, including navigation, docking, and the construction of maritime infrastructure such as ports and harbors. It is crucial for mariners to understand and accurately identify the HTL to ensure safe and efficient navigation, particularly in areas with large tidal ranges. The HTL can be influenced by a variety of factors, including the moon's gravitational pull, wind, atmospheric pressure, and the shape and depth of the sea floor.


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