Spring & neap tides
Pliny the Elder (23-79 A.D.): tides ‘follow’ the moon
Origin of tides - equilibrium model
Equilibrium means ‘no net force’
Explain this situation by saying that the two bodies are forced outward by an apparent (or fictitious) force - the centrifugal force
But have local inequities in forces
Net forces produce accelerations
Equilibrium tide
Solar equilibrium tide
Shortcomings of the equilibrium model
What is wrong with equilibrium model for the tides?
Dynamic theory for tides
The tidal wave
Standing waves
PPT Slide
Tidal standing waves
Kelvin waves
Amphidromic point (node) occurs near center of the basin
Tidal currents
Email: steven.wojtal@oberlin.edu
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