Star dunes. Satellite image of star dunes in the Grand Egg Oriental,a large field of sand dunes in the Sahara Desert,Algeria. Star dunes are large pyramid-shaped sand dunes that only form in areas where winds blow from multiple directions. They comprise about 8.5 percent of the world's sand dunes. Image acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite,on 27th September 2012 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Japan ASTER Science Team / JAROS and U.S. / ERSDAC / METI / GSFC / NASA |
Bildgröße: | 2758 px × 3194 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |