waves tidal wave

							sin(kx)
   or
sin(st)
sin(kx-st)




       x
Beating of two long waves (shallow water waves)




Beating of two short waves (deep water waves)
A Packet of Short Waves
Blue n=250
Green n=50
Red n=5
A Stone thrown on the water-- a impulsive disturbance
 50 m




250 m




500 m
       Standing Tidal Wave




Head        Distance         Mouth
Progressive Wave
          Circular Ellipse




Never a
slack
tide!
Elongated Ellipse
Rectilinear
M2 Tidal Ellipse’s off New Jersey
K1 Tidal Ellipse’s off New Jersey
Vertical Structure of M2 Tidal current