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draa

draa A high (more than 300 m) sand ridge or chain of dunes in the Sahara, lying about 0.5–5 km from its nearest neighbour and moving at 2–5 cm per year. It is the largest land-form of the erg or sand desert. A star-shaped dune, or ‘rhourd’, is developed at the site where two draa chains cross.

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"draa." A Dictionary of Ecology. . Encyclopedia.com. 21 Aug. 2017 <http://www.encyclopedia.com>.

"draa." A Dictionary of Ecology. . Encyclopedia.com. (August 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/draa-0

"draa." A Dictionary of Ecology. . Retrieved August 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/draa-0

draa

draa High (more than 300 m) sand ridge or chain of dunes in the Sahara, lying about 0.5–5 km from its nearest neighbour and moving at 2–5 cm per year. It is the largest land-form of the erg, or sand desert. A star-shaped dune, or ‘rhourd’, is developed at the site where two draa chains cross.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
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"draa." A Dictionary of Earth Sciences. . Encyclopedia.com. 21 Aug. 2017 <http://www.encyclopedia.com>.

"draa." A Dictionary of Earth Sciences. . Encyclopedia.com. (August 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/draa

"draa." A Dictionary of Earth Sciences. . Retrieved August 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/draa