Quanti gradi ci sono in Sahara?

Quanti gradi ci sono in Sahara?

Il clima desertico caldo (Sahara centrale) è caratterizzato da fortissime escursioni termiche giornaliere, di giorno la temperatura può toccare o superare i 50 °C, mentre all'alba può essere a 20 °C o raramente poco sotto; durante il periodo invernale in tarda notte (12 P.M.--1 A.M.)

What is the climate like in the Sahara Desert?

• The climate of the Sahara is characterized by very low rainfall, hot days and cool nights. The biggest differences are in summer, when it’s hotter and drier and there’s a greater temperature difference between day and night. In winter, the temperatures are milder during the day but it’s much colder at night.

What is the prevailing air mass above the Sahara Desert?

• The prevailing air mass lying above the Sahara is the continental tropical (cT) air mass, which is hot and dry. Hot, dry air masses primarily form over the North-African desert from the heating of the vast continental land area, and it affects the whole desert during most of the year.

What happened to the Sahara during the last glacial period?

• During the last glacial period, the Sahara was much larger than it is today, extending south beyond its current boundaries. The end of the glacial period brought more rain to the Sahara, from about 80 BC, perhaps because of low pressure areas over the collapsing ice sheets to the north.

What is the difference between the Sahara Desert and the Ergs?

• The Sahara is mainly rocky hamada (stone plateaus); ergs (sand seas - large areas covered with sand dunes) form only a minor part, but many of the sand dunes are over 180 metres (590 ft) high.