Deserts cover about a third of the world's land area . They range from extremely arid and barren sandy deserts (about 4% of the total land surface of the globe) , through arid (15 per cent) to semi-arid (15 per cent).
Most deserts have features of all these , with one zone merging into the next.so the start and finish of the deserts are broken down by geographers into small desert regions - the Australian desert includes the the Gibson, Great Sandy , Great Victoria and Simpson.
Sahara , Northern Africa - 9,100,000 sq. km
Australian , Australia( includes Gibson , Great sandy ,Great Victoria and Simpson) - 3,400,000 sq. km
Arabian Peninsula, Southwest Asia ( includes an-Nafud and Rub al Khali ) - 2,600,000 sq. km
Turkestan, Central Asia (includes Kara-kum and Kyzylkum) - 1,900,000 sq. km
Gobi , Central Asia - 1,300,000 sq. km
North Anerican Desert , US/Mexico (includes Great Basin, Mojave ,Sonorah and Chihuahuan) - 1,300,000 sq. km
Most deserts have features of all these , with one zone merging into the next.so the start and finish of the deserts are broken down by geographers into small desert regions - the Australian desert includes the the Gibson, Great Sandy , Great Victoria and Simpson.
Sahara , Northern Africa - 9,100,000 sq. km
Australian , Australia( includes Gibson , Great sandy ,Great Victoria and Simpson) - 3,400,000 sq. km
Arabian Peninsula, Southwest Asia ( includes an-Nafud and Rub al Khali ) - 2,600,000 sq. km
Turkestan, Central Asia (includes Kara-kum and Kyzylkum) - 1,900,000 sq. km
Gobi , Central Asia - 1,300,000 sq. km
North Anerican Desert , US/Mexico (includes Great Basin, Mojave ,Sonorah and Chihuahuan) - 1,300,000 sq. km
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