A desert is a region that receives almost no rainfall. In general, Deserts are areas with a moisture deficits i.e. lose more moisture than receive.
Deserts are defined as areas with average precipitations less than 250mm per year or where more water in lost by evaporation and transpiration than fall by precipitation.
Deserts constitute about 1/3 or 33% of Earth's land surface.
Largest desert - Antarctica
Hottest desert- Sahara
Hot Deserts
-Common Form of Deserts
-Have large diurnal and seasonal temperature variation with daytime tempreture reach more than 45 degree celsius in the summer and dipping to 0 degree at night in winter.
Cold Deserts
Polar Deserts which occurs in extremely cold regions.In cold Deserts the mean temp. during the warmth is less than 10 degree celsius due to lack of precipitated.
Montane deserts
Very High Altitude - Leh(Laddakh)
Rain Shadow Deserts
Xerocole - Animals
Xerophyte- Plants
Arroyo- Dry Stream through Deserts
Ex. Nile,Colorado - Big River
Indian Biggest Deserts- Thar Desert
Inland Rivers - Can't reach to sea
Ex. Luni River,Rajasthan
Deserts Lake - Great Salt Lake --Utah,USA
Desert Lake Place - Atacama deserts,Chile
Some Deserts Name
Sahara - North Africa
Arabian- UAE,Arab
Kalahari- Botswana,Africa
Gobi - Mongolia
Atacama- Central Chile
Pala Gonian - Argentina
Namib- Namibia
Takalamakan- Xinjiang Uyghur Autonomous Region, North-West China.
Karakum - Turmenistan
Sonoran - Arizona & California, USA
Thar- India
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