What impact will a 400-meter-high wall on the Mongolian Plateau have on Northeast China and North China?

The natural barrier formed by the Qinghai-Tibet Plateau and the Himalayas has changed the climate in southern China. So, can artificially building high walls on the Mongolian plateau isolate the Siberian cold current?

There are essential differences between the Qinghai-Tibet Plateau and the Mongolian Plateau.

Many people should not know. In fact, according to the current scientific research results, the formation of the Mongolian Plateau should be closely related to the collision between India and Eurasia. To put it simply, there is a high probability that the Mongolian Plateau will be uplifted by the Qinghai-Tibet Plateau? By-product? Only the uplift of the Mongolian Plateau is not earlier than that of the Qinghai-Tibet Plateau.

The Qinghai-Tibet Plateau, which had an average elevation of more than 4,000 meters, and the Himalayas, which are located on the southern edge of the plateau and whose peaks are more than 7,350 meters above sea level, are all blocked by this natural barrier. However, southern China is also protected from the Siberian cold current.

We don't have to put forward the absurd idea of blowing a hole in the Himalayas, because the Pacific warm current is enough to help South China get enough precipitation. However, although it is also in the name of the Mongolian Plateau? Plateau? However, its average elevation is only 1580 meters, which is more than half lower than that of the Qinghai-Tibet Plateau, and there are no high-altitude mountains like the Himalayas.

I believe many people know that the invasion of Siberian cold current always has a great impact on northern China. Then, if we build a 400-meter-high and 3000-kilometer-long Great Wall on the Mongolian Plateau, starting from Jiuquan City, Gansu Province in the west and Yichun City, Heilongjiang Province in the east, what will the climate be like in Northeast China and North China?

What is the effectiveness and feasibility of building ultra-high and ultra-long city walls on the Mongolian Plateau?

I believe that anyone who cares about meteorological information will not be unfamiliar with the word Siberia, and the related keywords are always related to remoteness and cold. Only those of us who are affected by the Siberian cold current will tremble with cold, let alone those who live in the center of the cold current.

The reason why someone proposed to build an ultra-high wall on the Mongolian Plateau is actually to stop the Siberian cold current. First of all, to build a 3000-kilometer-long and 400-meter-high super-long wall, the consumption of manpower and material resources can be imagined. But how can we ensure that such a high wall will not collapse? You know, 400 meters is not the height of several floors, but the height of hundreds of floors. Whether it is the size of wind or the erosion of rain, it will have a great impact on its stability.

Even the Shanghai Tower is more than 600 meters, but the foundation construction of others takes a lot of effort, and dampers and fluid appearance modeling are needed to slow down the wind. In other words, even if someone really builds such a wall on the Mongolian plateau, it is difficult to guarantee how long it will last. Although the Siberian cold current will bring some inconvenience to everyone's life, it also brings rainfall.

And to stop the cold current, the height of 400 meters is still not as high as the altitude of thousands of meters on the Qinghai-Tibet Plateau. In addition, this fluid can cross ordinary obstacles, and building a wall can't even slow down the invasion of cold current. How can it be compared with the effectiveness of mountains to stop the cold current? In short, if we can achieve the same effect by artificially building walls, won't nature's uncanny workmanship become a joke?

The Qinghai-Tibet Plateau and the Mongolian Plateau may be homologous, but the climate characteristics are different!

Known as the roof of the world and the roof of the world, the Qinghai-Tibet Plateau was originally the highest inland plateau in Asia and the largest plateau in China. Generally speaking, the climate here is characterized by more sunshine and strong radiation, but less accumulated temperature leads to lower temperature; The temperature difference is relatively large every day, and it is rainy and humid at night; There is much hail in summer and strong wind in winter.

Because the temperature on the plateau is related to the change of its height and dimension, the annual average temperature on the plateau is also obviously different, from about 20℃ in the southeast to below -6℃ in the northwest. At the same time, the part located in the south wing has subtropical and tropical mountain forest climate, not only the precipitation can reach 1000 ~ 4000mm, but also the average temperature in the hottest month here can reach 18 ~ 25℃.

The Mongolian plateau is different, belonging to temperate continental climate. The average annual rainfall here is only about 200mm, the average temperature in the hottest month can reach 16℃, and the temperature in the coldest month is as low as -3 1℃. The coldest period of the year in the Mongolian Plateau is January, and sometimes it can even exceed -40℃. The winter here is cold and long, and the winter time is from 165438+ 10 to April of the following year.

To put it simply, strong winds and rapid weather changes are the biggest characteristics of the climate in the Mongolian Plateau. Most of the water vapor that forms precipitation here comes from the Arctic Ocean and shows a decreasing trend from north to south. Of course, because of the low temperature here, the evaporation of water is also relatively laughable, which also makes the local climate relatively humid in perception, so it is divided into semi-humid areas in climate.