sahara hot desert climate Flashcards
(8 cards)
what is the sahara
largest hot desert in the world
covers
9 million km squared
how many countries does it occupy
11
climate characteristics (5)
Very hot summers: Daytime temperatures can reach 50°C.
Large diurnal temperature range: Temperatures can drop to below 0°C at night.
Low annual rainfall: Typically less than 250 mm/year; some areas go years without rain.
High evaporation: Moisture evaporates quickly due to intense heat.
Low humidity and clear skies: Leads to intense solar radiation during the day.
vegetation adaptations (4)
Deep tap roots to access groundwater.
Waxy or small leaves to reduce water loss.
Water storage tissues in stems and leaves.
Dormant seeds that only germinate when rain falls.
animal adaptations (4)
Nocturnal lifestyles to avoid heat.
Fat storage (e.g. camel humps).
Burrowing to stay cool.
Water conservation through concentrated urine and dry dung.
__% of Sahara is made up of gravel plains and rocky plateaus
80
average diurnal range is
30º