Slanting rays of sun on frigid zone

Slanting rays of sun on frigid zone

Frigid zone is the one of the heat or climatic zones of the earth which lies in 66.5˚ and above latitudinal height towards south and north poles of the earth. On the basis of the heat received from the Sun, earth is divided into 3 heat zones. They are Frigid zone (66.5˚ and above South and North), temperate zone (23.5˚ to 66.5˚ South and North) and torrid zone (0˚-23.5˚ South and North). Heat zone is synonymously used as the climatic zone in geography.

The earth rotates in the direction of east to west and along with the equatorial line. That’s why, places in equator gets direct vertical heat of the sun and heat zone is also called torrid zone. In torrid zone, temperature rises extremely  and weather changes very frequently. Similarly, in temperate heat zone climate remains warm, moist and damp causing relief rainfall.

As Frigid zone (Southern and Northern frigid zones) stretches from 66.5˚ latitude up to 90˚ latitudinal height of the earth, it lies in extreme south and North poles of the earth. So, when earth orbits in the direction east to west putting vertical rays over equator, slanting rays are spread over 



frigid zones in both poles. Vertical rays have more heat and heat up smaller area than slanting easy. Slanting rays cover bigger area but have lesser heat.

In this way, frigid zone doesn’t get direct or vertical rays which yields in the formation of excessive ice caps in both poles of the earth. So, the climate of the frigid zone remains snowy with extreme cold temperature. An American expedition reached in North pole on April 6, 1909. The North pole lies in the arctic ocean and is usually covered with snows and ices. The places like Greenland, New Siberian Islands, Svalbard, Franz Josef land etc are there in extreme northern pole.

Similarly, south pole is situated in the extreme south and at the end of the Earth’s axis. It’s located at latitude 90˚ South. At the first time, Norwegian explorer Roald Amundson reached south pole on December 14, 1911. South pole is surrounded by Antarctica which is the coldest, windiest, most remote, and most recently discovered continent that lies in the southernmost part. There is no permanent human population. The places like Wilkes land, En-derby land, Marie Byrd land etc are there.

Thus, frigid zones lie in southernmost and northernmost hemisphere of the earth which are covered by slanting rays of the sun along with the thin population density and thickest layer of snow and ice causing cold winds.