Rub' al Khali
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The Rub' al Khali is a desert encompassing most of the southern third of the Arabian Peninsula. The desert covers some 650,000 km2, including parts of Saudi Arabia, Oman, the United Arab Emirates, and
Sand dunes to the east of Liwa Oasis in the Emirate of Abu Dhabi, near the UAE's border with Saudi Arabia
Typical pale gravel plains surrounded by huge sand dunes, as seen in the Emirate of Abu Dhabi
Water found below ground level in the Rub' al-Khali in Shaybah, Saudi Arabia
Sand dunes of the desert in Hadhramaut, Yemen
Erg (landform)
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An erg is a broad, flat area of desert covered with wind-swept sand with little or no vegetative cover. The word is derived from the Arabic word ʿirq, meaning 'dune field'. Strictly speaking, an erg i
Rub' al Khali
…16.5°−23.0°N. Its surface elevation varies from 800 metres (2,600 ft) in the southwest to around sea level in the northeast. Most of the terrain is ergs, with sand dunes up to 250 metres (820 ft) high, interspersed with gravel and gypsum plains. The sand is reddish-orange due to the presence of feldspar…
Issaouane Erg, Algeria
Linear Dunes, Namib Sand Sea
Erg Chebbi, Morocco