Dynamic Oceanography - Tides

Table of Contents Title slide Tides and the Forces That Generate Them Tides have a wave form Sun and Moon act together to influence tides Diurnal and semidiurnal tides Examples of tides Tides result from gravitational attraction and centrifugal effect. Gravitational and centrifugal force Explanation of diurnal versus semidiurnal tides The Equilibrium Theory of Tides Origin of the tides: equilibrium model Variations in tidal range Spring and neap tides The Dynamic Theory of Tides 1 The Dynamic Theory of Tides 2

The Dynamic Theory of Tides 3 Movement of tides across ocean basins is deflected by Coriolis Amphidrome formation Amphidromic systems Rotary tidal waves Composite tidal waves In long and narrow basins tides can not rotate. Narrow basins: examples Seiches Estuarine tides Reversing falls Tidal currents. Rose diagrams and progressive tidal currents Global distribution of amphidromic systems Global distribution of tide types