amphidromic point


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amphidromic point

[¦am·fə¦dräm·ik ′pȯint]
(mapping)
On a chart of cotidal lines, a no-tide or nodal point from which the cotidal lines radiate.
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References in periodicals archive ?
A region surrounding an amphidromic point from which radiating cotidal lines progress through all hours of the tidal cycle.
Note that although in the ocean basins anticlockwise motion of tide waves about amphidromic points occurs in the Northern Hemisphere, and vice versa in the Southern Hemisphere, several exceptions exist.