Landforms
The Sahara
suh-HAR-uh or suh-HAIR-uh
Also Known As as-Sahra al-Kubra, Arabic for "the greatest desert"
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The largest hot desert in the world, spanning most of North Africa from the Atlantic coast to the Red Sea. Its terrain varies far more than the popular image of continuous dunes: rocky plateaus and gravel plains cover most of its area, with sand seas, or ergs, concentrated in particular basins. Its extent has fluctuated significantly over geological time, including a well-documented humid green period roughly six to eleven thousand years ago.
Facts
Area (sq km) Length (km)East-west extent from the Atlantic coast to the Red Sea; estimates vary by source, from about 4,800 to 5,000 km, and by how the desert's fluctuating margins are drawn. Highest Elevation (m)Emi Koussi, a shield volcano in the Tibesti Mountains of Chad, the Sahara's own highest point. Cross-Tradition Connections
Associated With
This source names North Africa directly: "desert in the world, spanning most of North Africa from the Atlantic coast to the Red Sea."
Demonstrates
Sits under the descending, high-pressure arm of the Hadley cell near 30 degrees latitude, the mechanism the Met Office identifies as producing the world's subtropical desert belts.
On Continent
Sources
1. National Geographic Atlas of the World
National Geographic Society, 2019
2. Encyclopaedia Britannica
2. Encyclopaedia Britannica
3. Sahara (Wikipedia)
Wikimedia FoundationInfoboxQuote, Infobox
as-sahra al-kubra, meaning "The greatest desert"
View the Source 3. Sahara (Wikipedia)
3. Sahara (Wikipedia)
Wikimedia FoundationInfobox coordinatesQuote, Infobox coordinates
23°N 13°E
View the Source 3. Sahara (Wikipedia)
Wikimedia FoundationAssociated With: Algeria, Geography sectionQuote, Associated With: Algeria, Geography section
The Sahara covers large parts of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Niger, Western Sahara and Sudan, and parts of southern Morocco and Tunisia.
View the Source 3. Sahara (Wikipedia)
Wikimedia FoundationAssociated With: Egypt, Geography sectionQuote, Associated With: Egypt, Geography section
The Sahara covers large parts of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Niger, Western Sahara and Sudan, and parts of southern Morocco and Tunisia.
View the Source 3. Sahara (Wikipedia)
Wikimedia FoundationAssociated With: Libya, Geography sectionQuote, Associated With: Libya, Geography section
The Sahara covers large parts of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Niger, Western Sahara and Sudan, and parts of southern Morocco and Tunisia.
View the Source UK Met Office
Met Office (United Kingdom)Demonstrates: Atmospheric CirculationView the Source Reader Challenges (0 open reader challenges)
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