Continents, Bathymetry and Friction
Large-scale rotary motion of tides in ocean basins creates an amphidromic system.
Global map of M 2 tide calculated from Topex/Poseidon observations of the height of the sea surface combined with the response method for extracting tidal information. Full lines are contours of constant tidal phase; gray scale gives the tidal amplitude (Center for Space Research, University of Texas).
Instead of circumnavigating the world, the tide wave is broken up into numerous smaller cells, called amphidromic systems. Within each cell, the tide wave circles around an amphidromic point.
|Closed Basins & Channels|
|Arctic & Antarctic Tides|
Author: E. Boyce
Created: 7 December, 2003
Web project for PHYS645 Fundamentals of Geophysical Fluid Dynamics, University of Alaska Fairbanks