Causes and locations of hot deserts

Question 1

4 causes of hot deserts

Answer 1

1. location-between the Hadley and Ferrell cell, 10-30 degrees north and south of the equator.
2. cold ocean currents.
3. rain shadow effect
   4.continentiality

Question 2

Explain Hadley and Ferrel impact

Answer 2

high pressured, anticyclonic zones, cold dry sinking air.
EG. THAR DESERT

Question 3

Explain cold ocean currents impact

Answer 3

western coasts. upwelling of cold air due to the circulation of wind currents. the cold water on the surface decreases the temperature of the overlying air mass. this air mass blows over the land , resulting in drier conditions due to the fact that it can not hold a great amount of water.
EG. SAHARA, CANNARIES CURRENT

Question 4

explain rain shadow effect impact

Answer 4

prevailing winds cause water vapour to rise and condense on the windward side of the mountain. this windward sides receives more rainfall and therefore is less arid. On the leeward side, a rain shadow forms which is a lack of rain and therefore has a more arid climate.
EG. ANDES , ATACAMA

Question 5

explain continentality impact

Answer 5

an air mass moving over a continent will loose moisture due to rainfall but will not pick up any moisture due to low evaporation rates. leaving areas at the centre of a continent with little rainfall and aridity.