Empty Quarter
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| Empty Quarter | |
|---|---|
 Nepenthes · CC BY-SA 3.0 · source | |
| Name | Empty Quarter |
| Native name | Rub' al Khali |
| Area km2 | 650000 |
| Countries | Saudi Arabia, Oman, United Arab Emirates, Yemen |
| Coordinates | 20°N 52°E |
Empty Quarter is the largest continuous sand desert in the Arabian Peninsula, spanning parts of Saudi Arabia, Oman, United Arab Emirates, and Yemen. The region has been central to studies by explorers such as Wilfred Thesiger and surveyed by expeditions linked to institutions like the Royal Geographical Society and the Arabian Exploration Society. It features extensive sand seas, episodic hydrology, and sparse human habitation associated with tribal groups including the Bani Yas and Al Murrah.
Etymology and name
The English name derives from translations of Arabic terms around the 19th century when explorers such as Bertram Thomas and cartographers from the British Museum collaborated with officials from the Ottoman Empire and the Sultanate of Muscat to map the peninsula. The Arabic name Rub' al Khali appears in reports by scholars at the American University of Beirut and in manuscripts collected by the British Library; historians referencing the Cambridge History of Islam note regional usage among tribes like the Shammar and Anaza. Colonial-era maps produced by the Ordnance Survey and accounts in the Journal of the Royal Geographical Society popularized the translated sobriquet in English-language travelogues.
Geography and environment
The desert occupies a vast portion of the Rub' al Khali Basin and borders coastal plains such as the Tihamah and mountain ranges including the Asir Mountains and the Al Hajar Mountains. Major geomorphological features were documented by geologists from the United States Geological Survey and the Saudi Geological Survey, while satellite imagery provided by agencies like NASA and the European Space Agency has mapped mega-dunes, interdune sabkhas, and fossil river channels. Notable nearby settlements and administrative centers include Riyadh, Salalah, Abu Dhabi, and Sana'a, each linked historically by caravan routes cataloged in records of the Hejaz Railway and accounts of the Darwish merchants.
Climate and ecology
The climate classification for the region is often cited in studies by the World Meteorological Organization and climatologists at King Abdulaziz University as hyper-arid, with extreme temperatures recorded at stations like those maintained by the Saudi Ministry of Environment, Water and Agriculture and observers in Oman Meteorology. Vegetation surveys by teams from the Royal Botanic Gardens, Kew and ecologists publishing in journals of the Zoological Society of London indicate sparse xerophytic flora and fauna such as species studied by the International Union for Conservation of Nature and recorded in the Global Biodiversity Information Facility. Faunal records reference desert-adapted mammals and birds observed by naturalists from the Smithsonian Institution and photographed by photographers associated with the National Geographic Society.
Human history and archaeology
Archaeological work supported by institutions like the British Institute for the Study of Iraq, the University of Oxford, and the University of Cambridge has uncovered lithic scatters, hearths, and caravan waystations linked to pre-Islamic trade networks connecting Marib, Petra, Palmyra, and Aden. Explorers including T.E. Lawrence and surveyors from the Anglo-Oman Society documented oral histories among tribes such as the Qahtan and Kharijites referenced in medieval sources like the Book of Merchants and chronicles preserved in the Topkapi Palace archives. Paleoclimatic reconstructions by researchers at the Max Planck Institute for Chemistry and the University of Vienna correlate with pollen records reported in monographs from the Peabody Museum.
Economy and natural resources
The desert overlays hydrocarbon-rich basins explored by companies such as Saudi Aramco, ExxonMobil, Shell, and Petroleum Development Oman; prospecting and seismic surveys were coordinated with ministries including the Ministry of Energy (Saudi Arabia) and the Omani Ministry of Oil and Gas. Mineral exploration by the United States Department of the Interior and geological mapping by the Bureau de Recherches Géologiques et Minières has identified evaporite beds and potential gypsum, while water resources have been assessed by engineers at the World Bank and desalination projects linked to Abu Dhabi National Oil Company. Traditional livelihoods referenced in ethnographic studies at the School of Oriental and African Studies include pastoralism practiced by clans such as the Al Kathiri and camel caravan trade documented by the International Labour Organization.
Transportation and tourism
Modern transport infrastructure near the region includes highways and airports managed by authorities like the Saudi General Authority of Civil Aviation and the Oman Airports Management Company, with overland routes connecting to cities such as Dammam, Muscat, Dubai, and Aden. Adventure tourism operators registered with bodies such as the Arabian Travel Market and guides trained by the Saudi Commission for Tourism and National Heritage run expeditions inspired by accounts of Wilfred Thesiger and photographic expeditions sponsored by the Royal Geographical Society. Historical caravan routes intersect with pilgrimage and trade pathways documented in records of the Hajj and in logistic studies by the International Civil Aviation Organization.
Conservation and research
Conservation initiatives involve collaboration between organizations including the Red Sea Project, the King Salman Center for Relief and Humanitarian Aid, and research centers like the King Abdullah University of Science and Technology and the Sultan Qaboos Cultural Center. Ongoing scientific programs funded by agencies such as the European Research Council, the National Science Foundation, and the Gulf Research Center address biodiversity, paleohydrology, and sustainable resource management, often in partnership with universities including the American University of Sharjah and King Saud University. International conferences at venues like the United Nations Educational, Scientific and Cultural Organization and the International Union for Quaternary Research disseminate findings from multidisciplinary teams studying the desert's past and future.