Photo Agency - Astronomy - Space - Nature

> Grand Ergs, Algeria, seen from the space shuttle Discovery. 12/1999

Grand Ergs, Algeria, seen from the space shuttle Discovery. 12/1999

author: Nasa/Novapix

reference: t-afalg-00002

Image Size 300 DPI: 34 * 34 cm

Two great sand seas occupy northern Algeria, Grand Erg Oriental (Eastern Sand Sea) and Grand Erg Occidental (Western Sand Sea). Both sand seas occupy depressions that are separated by a north-south rise called Mizab. Ergs are areas of large accumulations of sand that take the form of actively shifting dunes, fossilized dunes, or extensive sand sheets.

Keywords for this photo:

1999 - AFRICA - ALGERIA - CLOUD - DESERT - DUNE - EARTH - EARTH FROM SPACE - ERG - HORIZON - LIMB - SAHARA - SAND - STS-103 -