Published On: Wed, Aug 26th, 2020

The world’s driest pole, 400 years no rain

Chile is the slimmest country in the world: 4300 kilometers long from north to south, the average width from east to west is only 200 kilometers. In this narrow country, two mountain ranges with completely different topography are arranged longitudinally from west to east-Coastal Mountains and Andes Mountains. Between the two mountains is the core area of ​​the world’s Driest pole Atacama Desert.

Why is it called Driest pole?There are two versions.

According to the local population, there was no rainfall for about 400 years from the 16th century to the 20th century. According to records, from 1845 to 1936, for 91 consecutive years, there was no record of precipitation. American scientists believe that this is the natural environment closest to Mars on Earth, so they directly regard this as a Martian geographic environment simulation field, where many experiments on Martian high temperature and drought have been conducted, and space rover tests have been conducted.

Atacama Desert

So, what exactly is the existence of such a wonderful Atacama Desert?

The Atacama Desert is located in the middle of the west coast of South America. It is located in a long narrow area between the Andes Mountains and the Pacific Ocean. It extends from north to south for about 1,100 kilometers, with a total area of ​​about 180,000 square kilometers.

Generally speaking, most of the water vapor required for precipitation on land comes from the ocean, so precipitation in most areas decreases from coastal to inland.

So why the Atacama Desert is so close to the ocean but does not have enough rain?

This is because the Atacama Desert is located on the western slope of the Andes. The warm and humid air from the Atlantic Ocean is blocked by the tall and rolling mountains. The cold Peruvian current will take away a lot of moisture in the air when it passes by. The high temperature and dryness blown from the interior of the American continent The offshore winds aggravated the high temperature and dryness here, and the persistent subtropical high pressure and the other three forces turned it into a desert, finally creating a wonderful picture of the “coastal desert” where seawater flames are interdependent.

The soil here is barren and the acid is so strong that even bacteria can’t survive. However, it was voted “the most romantic tourist destination in South America” ​​at the 2018 World Travel Awards.

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