Focus Friday - Sand Dunes

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Friday, Mar 2 2012 by

In physical geography, a dune is a hill of sand built by wind. Dunes occur in different forms and sizes, formed by interaction with the wind. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter “slip face” in the lee of the wind. The valley or trough between dunes is called a slack. A “dune field” is an area covered by extensive sand dunes. Large dune fields are known as ergs.

Sand dunes in interesting shapes (Google Maps)
Sand dunes in interesting shapes

Famous Saharan sand dunes (Google Maps)
Famous Saharan sand dunes
Dunes (Google Maps)
Dunes

Taklamkan Desert’s sand dunes (Google Maps)
Taklamkan Desert’s sand dunes

Great Sand Dunes National Park (Google Maps)
Great Sand Dunes National Park

Maspalomas Sand Dunes (Google Maps)
Maspalomas Sand Dunes
Swakopmund Sand Dunes (Google Maps)
Swakopmund Sand Dunes

Bilbao Sand Dunes (Google Maps)
Bilbao Sand Dunes
Sand Dune at Hoffmaster Park (Birds Eye)
Sand Dune at Hoffmaster Park

Samalyuca Sand Dunes (Google Maps)
Samalyuca Sand Dunes
Indiana Dunes (Google Maps)
Indiana Dunes

Florence Dunes (Google Maps)
Florence Dunes
Algodones Sand Dunes (Google Maps)
Algodones Sand Dunes

Coos Bay Dunes (Google Maps)
Coos Bay Dunes

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