What is the cause of tropical desert climate?

1. Atmospheric environment

Tropical desert climate is controlled by subtropical high pressure zone, dry trade winds and cold current. Ocean currents have a great influence on the climate. The cold current can reduce the temperature and humidity in the area it flows through, while the warm current can increase the temperature and humidity in the area it flows through.

2. Temperature and humidity

Tropical desert climate appears in the west coast of the mainland and the interior of the mainland in the subtropical high pressure zone and trade wind zone. It is controlled by the subtropical high downward flow all the year round, and from the perspective of the whole earth, a dry climate region is formed.

Characteristics of tropical desert climate

Tropical desert climate is characterized by abundant sunshine, strong sunshine, dry and hot summer, large temperature difference between day and night, and many sandstorms.

Because the weather is dry, there are few clouds and rains, there are many sunshine and strong sunshine, and there are no clouds in the sky, some sunshine can't be stopped, so there is no water on the ground and it can't evaporate and cool down. The heat from the sun to the ground is used to heat the earth and the air, so the temperature in summer is particularly high and the temperature difference between day and night is particularly large.

The four seasons in the desert are quite different from those in other parts of the same latitude. Due to the monsoon climate in eastern China, both spring and autumn are very short. However, in desert areas, spring and autumn are shorter. Because the desert area is too dry, there is no water regulation. The temperature rises in a straight line in spring and falls in autumn. The total temperature in spring and autumn is only about two and a half months to three months.