Dust Blowing About Rub’ al Khali, Arabian Peninsula18.7N 45.2E
Fierce winds kick up dust over the Arabian Peninsula, in Saudi Arabia, Yemen and Oman. The dust is blowing about the Rub’ al Khali, one of the largest sand deserts in the world, encompassing most of the southern third of the Arabian Peninsula.
The desert covers some 650,000 square kilometres (250,000 sq mi). It is 1,000 kilometres (620 mi) long, and 500 kilometres (310 mi) wide. Its surface elevation varies from 800 metres (2,600 ft) in the southwest to around sea level in the northeast. The terrain is covered with sand dunes with heights up to 250 metres (820 ft), interspersed with gravel and gypsum plains.