Ramlat al-Sab`atayn
Encyclopedia
The Ramlat al-Sab`atayn is a region of desert
in north-central Yemen
. It comprises mainly transverse and seif dune
s and covers an area of about 60 by 150 miles (241.4 km), roughly 10,000 square miles. The area includes what was known to medieval Arab geographers as the Sayhad
.
Desert
A desert is a landscape or region that receives an extremely low amount of precipitation, less than enough to support growth of most plants. Most deserts have an average annual precipitation of less than...
in north-central Yemen
Yemen
The Republic of Yemen , commonly known as Yemen , is a country located in the Middle East, occupying the southwestern to southern end of the Arabian Peninsula. It is bordered by Saudi Arabia to the north, the Red Sea to the west, and Oman to the east....
. It comprises mainly transverse and seif dune
Dune
In physical geography, a dune is a hill of sand built by wind. Dunes occur in different forms and sizes, formed by interaction with the wind. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter "slip face" in the lee of the wind...
s and covers an area of about 60 by 150 miles (241.4 km), roughly 10,000 square miles. The area includes what was known to medieval Arab geographers as the Sayhad
Sayhad
Sayhad is a desert region that corresponds with Northern Deserts of Modern Yemen and Southwestern Saudi Arabia ....
.