Deserts of Africa

Credit: wikipedia (Dunes of Algeria)

Deserts of Algeria‎ - The Algerian Desert (Arabic: الصحراء الجزائرية‎) is a located in north-central Africa and is part of the Saharan Africa. The desert occupies more than four-fifths of the Algerian territory. Its expansion starts from the Saharan Atlas, more or less as a stony desert and the farther inland you get the more of a sand dune desert it becomes. In the southwestern parts is the mountain range Tassili n'Ajjer located. This area is a subject of great archaeological interest and was put up on the "World Heritage List" by UNESCO in 1982. The highest official temperature was 50.6 °C (123.1 °F) at In Salah.

Credit: wikipedia (Grand Erg Occidental)

The Grand Erg Occidental (Arabic: العرق الغربي الكبير‎, al-ʿIrq al-Gharbī al-Kabīr), (also known as the Western Sand Sea) is the second largest erg in northern Algeria, behind the Grand Erg Oriental. This true desert region receives less than 25 cm (10 in) of rainfall per year. It contains no human villages and there are no roads through it.

Credit: wikipedia (Grand Erg Oriental)

The Grand Erg Oriental (English: 'Great Eastern Sand Sea') is a large erg or "field of sand dunes" in the Sahara desert. Situated for the most part in Saharan lowlands of northeast Algeria, the Grand Erg Oriental covers an area some 600 km wide by 200 km north to south. The erg's northeastern edge spills over into neighbouring Tunisia.

Deserts of Botswana

Credit: wikipedia (Kalahari Desert)

The Kalahari Desert (in Afrikaans Kalahari-woestyn) is a large semi-arid sandy savannah in southern Africa extending 900,000 square kilometres (350,000 sq mi), covering much of Botswana and parts of Namibia and South Africa. A semi-desert, with huge tracts of excellent grazing after good rains, the Kalahari supports more animals and plants than a true desert, such as the Namib Desert to the west. There are small amounts of rainfall and the summer temperature is very high. The driest areas usually receive 110–200 millimetres (4.3–7.9 in) of rain per year,and the wettest just a little over 500 millimetres (20 in). The surrounding Kalahari Basin covers over 2,500,000 square kilometres (970,000 sq mi) extending farther into Botswana, Namibia and South Africa, and encroaching into parts of Angola, Zambia and Zimbabwe. The Kalahari is home to many migratory birds and animals. Previously havens for wild animals from elephants to giraffes, and for predators such as lions and cheetahs, the riverbeds are now mostly grazing spots, though leopards and cheetahs can still be found. The area is now heavily grazed and cattle fences restrict the movement of wildlife. Among deserts of the southern hemisphere the Kalahari most closely resembles some Australian deserts in its latitude and its mode of formation.  Read more >>

Source: wikipedia