Rub' al Khali

Rub' al Khali
Nepenthes · CC BY-SA 3.0 · source
Desert name	Rub' al Khali
Location	Saudi Arabia, Oman, United Arab Emirates, Yemen
Area	650,000

Rub' al Khali, also known as the Empty Quarter, is a vast desert region located in the Arabian Peninsula, covering parts of Saudi Arabia, Oman, United Arab Emirates, and Yemen. It is the largest sand desert in the world, stretching over 650,000 square kilometers, and is bordered by the Red Sea to the west, the Gulf of Aden to the south, and the Persian Gulf to the east, near the Strait of Hormuz. The region is characterized by its extreme heat, arid conditions, and limited vegetation, making it one of the most inhospitable places on Earth, similar to the Atacama Desert and the Gobi Desert. The Rub' al Khali is also home to several important oil fields, including the Ghawar Field and the Shaybah Field, which are operated by companies such as Aramco and ExxonMobil.

Geography

The Rub' al Khali is a vast and remote region, covering an area of approximately 650,000 square kilometers, making it larger than the United Kingdom and smaller than the Australian Outback. It is situated in the southern part of the Arabian Peninsula, bordering the Oman Mountains to the east and the Hejaz Mountains to the west, near the City of Mecca. The desert is characterized by its endless dunes of sand, some of which reach heights of over 250 meters, similar to those found in the Sahara Desert and the Mojave Desert. The region is also home to several important oases, including the Liwa Oasis and the Shaybah Oasis, which are inhabited by Bedouin tribes, such as the Al Murrah and the Al Rashid. The Rub' al Khali is also close to the Bab-el-Mandeb Strait, which connects the Red Sea to the Gulf of Aden, and is an important shipping route, used by vessels from China, India, and Europe.

Climate

The climate of the Rub' al Khali is extremely hot and arid, with very little rainfall throughout the year, similar to the Death Valley and the Kalahari Desert. The region experiences a tropical desert climate, with temperatures often reaching as high as 50°C (122°F) in the summer months, and dropping to as low as -2°C (28°F) in the winter months, near the Tropic of Cancer. The average annual rainfall in the region is less than 50 mm (2 inches), making it one of the driest places on Earth, along with the Atacama Desert and the Arctic Desert. The region is also known for its intense sandstorms, which can last for days and reduce visibility to near zero, similar to those found in the Gobi Desert and the Australian Outback. The climate of the Rub' al Khali is influenced by the Intertropical Convergence Zone and the Indian Ocean Dipole, which affect the monsoon patterns in the region, and are monitored by organizations such as the National Oceanic and Atmospheric Administration and the European Centre for Medium-Range Weather Forecasts.

Geology

The geology of the Rub' al Khali is characterized by its vast sand dunes, which are made up of quartz and feldspar grains, similar to those found in the Sahara Desert and the Mojave Desert. The region is also home to several important oil fields, including the Ghawar Field and the Shaybah Field, which are operated by companies such as Aramco and ExxonMobil. The oil fields are located in the Arabian Basin, which is a major sedimentary basin that stretches across the Arabian Peninsula, and is also home to other important oil fields, such as the Burgan Field in Kuwait. The Rub' al Khali is also home to several important mineral deposits, including copper, gold, and uranium, which are mined by companies such as Rio Tinto and BHP Billiton. The geology of the region is influenced by the Arabian Plate and the African Plate, which have shaped the region's landscape over millions of years, and are studied by organizations such as the United States Geological Survey and the British Geological Survey.

History

The Rub' al Khali has a long and rich history, with evidence of human habitation dating back to the Stone Age, similar to the Fertile Crescent and the Indus Valley Civilization. The region was an important stopover for trade caravans traveling between the Mediterranean Sea and the Indian Ocean, and was also home to several important oases, including the Liwa Oasis and the Shaybah Oasis. The region was also home to several important empires, including the Ottoman Empire and the British Empire, which controlled the region's trade and commerce, and were involved in the Scramble for Africa and the Great Game. The Rub' al Khali was also the site of several important battles, including the Battle of Hafr al-Batin and the Battle of Jebel Akhdar, which were fought between the Sultanate of Oman and the Kingdom of Saudi Arabia. The history of the region is also closely tied to the Islamic Golden Age, which saw the rise of important Islamic cities, such as Baghdad and Cairo, and the development of important Islamic sciences, such as astronomy and mathematics.

Ecology

The ecology of the Rub' al Khali is characterized by its extreme heat and aridity, which support a limited range of plant and animal species, similar to the Atacama Desert and the Gobi Desert. The region is home to several important endemic species, including the Arabian oryx and the sand fox, which are adapted to the region's harsh conditions, and are protected by organizations such as the International Union for Conservation of Nature and the World Wildlife Fund. The region is also home to several important migratory species, including the Amur falcon and the Sociable lapwing, which pass through the region on their way to and from their breeding grounds, and are monitored by organizations such as the Royal Society for the Protection of Birds and the BirdLife International. The ecology of the region is influenced by the desertification process, which is caused by a combination of factors, including climate change, overgrazing, and soil erosion, and is studied by organizations such as the United Nations Environment Programme and the Food and Agriculture Organization.

Exploration

The Rub' al Khali has been the subject of several important expeditions and explorations, including those led by Wilfred Thesiger and St. John Philby, who were sponsored by organizations such as the Royal Geographical Society and the British Museum. The region was also explored by several important travelers, including Ibn Battuta and Marco Polo, who passed through the region on their way to and from Asia and Africa. The Rub' al Khali was also the site of several important archaeological discoveries, including the discovery of the lost city of Ubar, which was excavated by a team led by Nicholas Clapp and Juris Zarins. The exploration of the region is ongoing, with several important scientific expeditions and research projects currently underway, including those sponsored by organizations such as the National Science Foundation and the European Space Agency. The exploration of the Rub' al Khali is also closely tied to the space exploration program, with several important space missions having been launched to study the region's geology and ecology, including the Apollo 11 mission and the Mars Curiosity Rover mission.

Category:Deserts