Heat Zones of the Earth

On the basis of insolation received by the surface of the Earth, the world is divided into three main heat zones. They are

Heat Zones of the Earth

Torrid Zone:
This zone lies between 23 1/2° North and South of the Equator. The Sun shines exactly overhead at the places near the Equator and in the tropics. Direct vertical rays of the Sun fall over these places. Therefore, the equatorial and tropical regions receive maximum insolation.

Temperate Zone:
This zone lies between 23 1/2° and 66 1/2° North and South of the Equator. The regions in the temperate zone experience the slanting rays of the Sun. Because of the spherical shape of the Earth, the amount of insolation received by these regions is less.

Frigid Zone:
This zone is located between 661/2° and 90° North and South of the Equator. This zone experiences extremely slanting rays of the Sun over a large distance. Hence, the amount of insolation received is very less even during summers.


Also, Read

Isolation and heat balance

The Sun is the source of light and heat on the Earth. The heat and energy radiated by the Sun in all directions are known as solar radiation. Read More

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