How Do Sand Junes Form?

A parabolic june is similar, except now the points of the crescent face up wind. These are more common in coastal areas because they tend to be stabilized by vegetation. And it all depends on how constant the wind is, the relative amount of sand available and the amount of vegetation. Now there's another related phenomenon which i wanted to discuss brifly, called sand ripples. They occur in deserts as well as in on beaches, and really, really anywhere where you have a sand and a fluid. So that fluid can be water or the air. And these are regular wave like pattens at you find in the sand. Its quite complicated, but basically, they arise