examples of dunes![click to hear](/images/speaker.jpg)
Dune: accumulation of sand transported by the wind, found in deserts and along coasts.
longitudinal dunes ![click to hear](/images/speaker.jpg)
Narrow elongated dunes that form when the wind blows in two convergent directions.
transverse dunes ![click to hear](/images/speaker.jpg)
Dunes that form perpendicular to the direction of the wind.
chain of dunes ![click to hear](/images/speaker.jpg)
Dunes aligned in the same direction, parallel to the wind.
parabolic dune ![click to hear](/images/speaker.jpg)
Crescent-shaped coastal dune whose arms point into the wind; vegetation often keeps it in place.
complex dune ![click to hear](/images/speaker.jpg)
Star-shaped dune that forms where winds blowing in various directions meet.
crescentic dune ![click to hear](/images/speaker.jpg)
Moving crescent-shaped dune whose arms extend in the same direction as the wind.