(1). Introduction
* Africa is home to the world's largest hot desert – the Sahara Desert.
* Deserts are mainly concentrated in North Africa, the Horn of Africa and Southern Africa.
* African deserts include hot deserts, semi-arid regions and coastal deserts.
* Most African deserts receive very low and irregular rainfall.
(2). Major Deserts of Africa
(1). Sahara Desert
* World's largest hot desert.
* Located in North Africa.
* Covers approximately 9.2 million km².
* Extends from the Atlantic Ocean to the Red Sea.
* Countries include Algeria, Libya, Egypt, Chad, Niger, Mali, Mauritania, Morocco, Tunisia and Sudan.
(2). Libyan Desert
* Located mainly in eastern Libya and western Egypt.
* Forms part of the eastern Sahara.
* Characterised by extensive sand dunes and rocky plateaus.
(3). Nubian Desert
* Located in northeastern Sudan.
* Lies between the Nile River and the Red Sea region.
* Characterised by rocky and sandy terrain.
(4). Namib Desert
* Located along the southwestern coast of Africa, mainly in Namibia.
* One of the world's oldest deserts.
* Influenced by the cold Benguela Current.
* Famous for its enormous sand dunes.
(5). Kalahari Desert
* Located in Southern Africa.
* Extends across Botswana, Namibia and South Africa.
* It is a semi-arid sandy region.
* Supports grasslands, shrubs and wildlife.
(6). Danakil Desert
* Located in the Afar region of Ethiopia, Eritrea and Djibouti.
* Known for extreme heat, salt flats and volcanic landscapes.
* Contains the Danakil Depression.
(7). Ténéré Desert
* Located in central Sahara, mainly in Niger.
* Characterised by vast sand dunes.
* Known as the desert within a desert.
(8). Chalbi Desert
* Located in northern Kenya.
* One of the driest regions of Kenya.
* Contains sandy and rocky surfaces.
(9). Moçâmedes Desert
* Located in southwestern Angola.
* Associated with the Namib Desert system.
* Influenced by the cold Benguela Current.
(10). Bayuda Desert
* Located in northeastern Sudan.
* Lies within the great bend of the Nile.
* Characterised by rocky and sandy landscapes.
(3). Other Important Desert Regions
* Tanezrouft Desert: Located in southern Algeria and northern Mali.
* El Djouf: A desert region of Mauritania and Mali.
* Lompoul Desert: Located in northwestern Senegal.
* Ogaden: An arid region of eastern Ethiopia.
* Guban: A narrow arid coastal region of northern Somalia.
* Grand Bara: Located in Djibouti.
* Nyiri Desert: Located in southern Kenya.
* Great Karoo: A semi-arid plateau region in South Africa.
4 Why Are African Deserts Formed?
Important factors:
* Subtropical High Pressure: Descending dry air around 20°–30° latitude inhibits rainfall.
* Cold Ocean Currents: Benguela Current contributes to dryness along southwestern Africa.
* Continentality: Interior regions receive limited moisture from oceans.
* Rain Shadow Effect: Mountains block moisture-bearing winds in some areas.
* Trade Winds: Dry continental air contributes to arid conditions in certain regions.
6 Important Facts for Competitive Exams:
* Largest hot desert: Sahara Desert.
* Oldest desert: Namib Desert.
* Cold ocean current near Namib: Benguela Current.
* Famous desert depression: Danakil Depression.
* Largest desert region in Southern Africa: Kalahari.
* Ténéré Desert: Part of the Sahara.
* Major desert of Kenya: Chalbi Desert.
* Major desert of Namibia: Namib Desert.
* Tibesti: Mountain massif in the Sahara, not a desert.
* Great Karoo: Semi-arid region of South Africa.
7 Quick Revision:
Remember these distinctions
* Sahara – Largest hot desert.
* Namib – One of the oldest deserts.
* Kalahari – Semi-arid sandy region.
* Danakil – Extreme heat and volcanic landscape.
* Chalbi – Northern Kenya.
* Moçâmedes – Southwestern Angola.
* Benguela Current – Cold current along southwestern Africa.
Exam tip: Do not confuse the Sahara, Kalahari and Namib. Their locations, climatic conditions and geographical characteristics are frequently important in physical geography examinations.
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