Surface waves are caused when P waves and S waves come to the surface. Examples are the waves at the surface of water and air (ocean surface waves). Another example is internal waves, which can be transmitted along the interface of two water masses of different densities.
Transverse, Longitudinal, and Surface Waves Transverse Waves A Transverse Wave is a type of Mechanical Wave.The matter in the wave moves back and forth at right angles to the direction that the wave travels.The transverse waves highest point is called the crest and the lowest point is the trough.