Wind waves are one of those phenomena which suggest such a huge variety of concepts that are an unfathomable source for metaphors. Either if you're a poet, a journalist, a politician, you'll find the concept as a most useful tool; wave of change, wave of emotions, shock wave, ride the wave, heat wave..., it's so open a concept that I can't help using it too.
|Shallow Water Waves|
When analysing the real shape of the trajectories that water particles follow in their motion, it's pretty curious to find that each one has a double movement: something akin to a circle in a vertical direction, but with a translational back and forth movement in a horizontal direction (two steps forth, one step back). It has to be noted that, the deeper the position, the smaller the circular motion becomes. The movement is finally reduced to a mere oscillatory movement, slow follower of the wind direction. When the waters are deep enough, total stillness reigns in the depth.
|Deep Water Waves|
And let me set here my analogy: