amphidromic point

Earth science

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Last updated

June 18, 2026

Quick Summary

An amphidromic point is a concept in Earth science related to tidal action. It refers to a point or center within a tidal system where the tidal rise and fall are essentially zero. Around these points, tidal patterns rotate either clockwise or counterclockwise.1

The term "amphidromic" itself means relating to a system of tidal action where the tide wave progresses around a center of little or no tide. This phenomenon is observed in oceans, where the complex behavior of water due to factors like inertia and continents leads to these unique tidal patterns.21

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tide
Ocean tides
…observation indicates the existence of amphidromic points, at which the tidal rise and fall is zero; patterns of high and low tides rotate around these points (either clockwise or counterclockwise). Amplitudes are typically less than a metre.
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…observation indicates the existence of amphidromic points, at which the tidal rise and fall is zero; patterns of high and low tides rotate around these points (either clockwise or counterclockwise). Amplitudes are typically less than a metre.
Read More