What is the reason for the scarcity of precipitation in Lima?

With the improvement of people's living standards in China, more and more people in China like to travel in their spare time. Some hikers like to go to places with snow to see the snow, some like to go to hot beaches, and some hikers like to go to cooler places to play. The weather is beyond our control. If you want to feel different weather, you can only go to other areas to experience it. Speaking of weather, what's your favorite weather?

Whether it is sunny or cloudy, Bian Xiao likes it very much, but the rainy season is his least favorite. Whenever this season comes, not only does it often rain, but clothes are always dry. But have you ever thought that there is a city in the world that doesn't rain, and it hasn't rained for 600 years?

Rainwater has always been an important fresh water resource. In the past, when water conservancy facilities were not perfect, human beings could only feed crops by rain. If it doesn't rain all year round, there will be a serious drought. Then, if it rains in the capital that hasn't rained for 600 years, will it bring any bad influence to mankind?

The rainless capital is actually Lima, the capital of Peru. It is actually a desert city surrounded by desert for many years. Bian Xiao learned from a tour guide friend that Lima has a population of about 8 million, and these residents will not live badly because of lack of water resources. In the minds of Lima residents, they don't care about the weather at all, but if it rains one day, they will be very surprised. People who live in Lima never have to buy rain gear, and some locals don't even bother to build roofs when building houses.

Bian Xiao is still confused. How can it make sense that a city hasn't rained for 600 years? Through the explanation of tour guide friends, I fully understand that the average annual precipitation in Lima is only 1.5mm, so this tiny figure can't form our common rain, so it hasn't rained for 600 years.

The tour guide friend also told Bian Xiao that there are two reasons for the lack of precipitation in Lima: one is that the water vapor can't form clouds after the cold current passes through Peru and contacts with the coastal air, so it can't rain; The other is located in the desert climate area, and the precipitation is naturally scarce.

After reading the introduction, do you know more about Lima?