What is a "weather factory"?

There is a thick atmosphere in the outer layer of our earth. This is an ocean of gas. It has been moving and changing.

Paying attention to every move of the atmosphere is an important work content of meteorological station staff. They try to grasp its changing law and predict the future weather. In this huge global meteorological network, the Antarctic Meteorological Observatory occupies an important position.

The atmospheric movement on the earth is very complicated. The heated atmosphere rises from the equator and flows to the northern and southern hemispheres. How many times does it go up, down, west and east? But the general direction is the same, that is, from the equator to the poles, and from the poles to the equator, and so on.

Solar thermal energy is the main force to promote global atmospheric circulation. The sun brings warmth and light to the world from distant space, but the heat of the sun is uneven in all parts of the earth. The equatorial region is exposed to direct sunlight almost all the year round, receiving more heat and high temperature. The poles can be reflected obliquely by the sun for only half a year, and there is no sunshine for the other half a year, so they receive little heat and the temperature is very low. The temperature difference between the equator and the poles can reach 100℃! The atmosphere over the equator is heated, expanded, rising and flowing to the poles. Hot air reaches the poles, contracts and sinks when it is cold, and then flows to the equator to supplement the updraft at the equator. It can be said that the huge temperature difference between the equator and the poles is the basic driving force of atmospheric circulation. Without such a temperature difference, atmospheric circulation cannot be formed, and there will be no various weather changes. Therefore, some people call the North and South poles the "weather factory" of the earth.