The cold air gradually began to move south, and where could the low temperature that the Qinling Mou

Due to the revolution of the earth.

The reason for the northern hemisphere of the Earth.

It's winter. Entering winter, as the name suggests, there is a big drop in temperature, and it is time to enter the cold season. In 2020, when the first cold snap hit, the cold air coming down from the north lingered in Shaanxi and was blocked by the Qinling mountains.

So the southern region of our country.

I didn't feel much cold, and December 2020 was low, and this time the cold air crossed the Qinling Mountains. People of the SouthIt is also a luxury to rely on warm and humid air to come up north to block the cold air, which has crossed the Qinling Mountains and will reach the southernmost part of China, and even the Guangdong region will have a cold feeling. Next, let's take a look at the situation of cold air moving south.

1. The cold air has crossed the Qinling Mountains and walked out of ShaanxiIn our impression, the Qinling Mountains are a very powerful existence. Those who have taken a plane from Shaanxi to the south know that the plane will quickly increase its altitude in front of the Qinling Mountains. On the way back, they will also cross the Qinling Mountains before descending in height, which can be seen in the Qinling Mountains.

How tall it is. Qinling Mountain, which often blocks the cold air, is also powerless, and the cold air has already moved south.

2. Hubei, Anhui, Jiangsu and other places have begun to be cold In the two days from December 29 to 30, 2020, some cities in Hubei, Anhui, and Jiangsu have snowed. The city of Wuhan in Hubei Province was shrouded in heavy snow, and the city of Hefei in Anhui Province was also shrouded in heavy snow. The weather in Jiangsu, Zhejiang and other regions has also begun to become gloomy.

"The black clouds are overwhelming the city, and the cold snap is coming. ”

3. Passing by in the place of Yima Pingchuan, the cold air will go directly to the south After crossing the Qinling Mountains, it can be said to be a horse Pingchuan, because after arriving in the plain area, there is no dangerous terrain to stop the cold air, and it can only rely on the warm and humid airflow from the south to intercept the cold air, but on December 30, 2020, I have not heard of any warm and humid airflow, so the cold air will go directly south, to the southernmost side.

Cold air can reach Hainan Island. Friends on Hainan Island this winter may also need to prepare a down jacket.

Now the cold air is gradually moving south, and after crossing the Qinling Mountains, it will reach Hubei, Anhui, Jiangsu and other places, and can reach Yunnan, Guangdong, Hainan and other places as farth.

Perhaps this low temperature can reach as far as Hainan Island, or even farther, and there may be some cooling in Hainan this year.

** Zhang Tao, chief forecaster of the Meteorological Observatory: If the cold air is thick enough, then it can cross this mountain range. The Qinling Mountains and the Nanling Mountains can't stop it, and the Wuyi Mountains can't stop it, and it (the mountains) can block the speed of its (cold wave), but in the end, after the cold air accumulates to a certain thickness, it can cross the mountains, so it will affect South China.

This year, the temperature may drop across the country, such as Guangzhou and Yunnan, which are colder than usual this year.

The reason why the Qinling Mountains can block the southward air is mainly because the direction of the Qinling Mountains is east-west, and the altitude is also very high, which blocks the cold air to a certain extent.

The Qinling Mountains are the dividing line between the north and south of China, with an average altitude of more than 3,000 meters. It is difficult for the cold air from the north to cross the mountains when it moves south, and the warm air from the south cannot reach the north, so the difference in climate between the north and the south is formed. The wonders of nature still need to be carefully studied and fully utilized.

The truth about the Qinling Mountains blocking the cold air from the south is actually because the terrain below the Huai River in the Qinling Mountains is relatively rugged, so there are certain topographical differences.

The truth is that the Qinling Mountains block the warm air from the north. The Qinling Mountains will also play a certain role in hindering the cold air from the south, but the altitude of the Qinling Mountains is not very high, so it only has an obstructive effect.

Because the average altitude of the Qinling Mountains is very high, it is so high that it can directly block the cold air on one side. That's the main reason.

Because of the natural conditions, temperature differences, geographical features, crop production, soil changes, vegetation differences, and people's living habits on both sides of the Huai River in the Qinling Mountains, this is the dividing line.

As an important geographical concept in Chinese geography, it was first proposed by the famous geographer Zhang Xiangwen. Published in 1908 in the "New Writings of the Literature", it is written: "The Northern Zone: .

It is bounded by Huaishui in the south and reaches the Great Wall of Yinshan in the north. Animals are mostly donkeys, good horses, and goats; Western musk deer rhinoceros. The plants are citrus, elm, sandalwood, pear, chestnut, persimmon and grape.

Because the Qinling Mountains block the cold air from the north from the south, the climate south of the Qinling Mountains is warm, and the climate is cold in the north, which is the dividing line between the north and the south of China.

Because the location of the Qinling Mountains roughly coincides with the dividing line between humid and semi-humid in China, and because of the Qinling Mountains, the whole country has formed a geographical pattern of "south meter to the north", "south ship and north horse", and "south flood and north drought". It also slows down the flow of cold air from the north into the south to a certain extent.

The Qinling Mountains are a relatively high mountain peak, and in winter, cold air moves south from the north and is intercepted when it encounters the Qinling Mountains, so different temperature zones will form on both sides of the Qinling Mountains.

In winter, the temperature difference between the north and the south is relatively large. When the weather in the north is very cold, the north wind is howling, the weather is cold, wearing a thick coat, and even goose feathers and heavy snow are floating, many places in the south may be a green onion, and even many flowers are still blooming, the weather is humid, and there will often be light rain. The Qinling Mountains play a large role in the temperature gap between the north and the south.

How did Qinling use its own strength to block the cold air from moving south?

1. The Qinling Mountains are a huge mountain range, which is very long from east to west and wide from north to south, which effectively blocks the cold air from moving south. There are many mountain ranges in China, if only in terms of height, the Qinling Mountains may not be too prominent, but its impact on the climate is incomparable to many other mountain ranges. The Qinling Mountains are very long from east to west, and the north-south span is also very large, with continuous mountain ranges, vertical and horizontal, the vegetation on the mountains is also very luxuriant, and the terrain of rivers and valleys is steep.

When cold air passes through here, it is blocked by layers. Therefore, when the cold wind passes through the highest peak of the Qinling Mountains, it is difficult to have the strength to move further south. The mountain range forms a natural barrier that keeps the cold air at bay.

2. The Qinling Mountains have a high altitude, the mountains are majestic and steep, and there are many famous peaks, which have a very obvious blocking effect on cold air. To the north of the Qinling Mountains is the Weihe Plain, and in the plain area at a lower altitude, the mountain is rapidly raised and a steep mountain range is formed, which has a very large blocking effect on the cold air. Although ordinary people do not have the opportunity to climb the Qinling Mountains, when we take the train and pass through the heavy mountains of the Qinling Mountains, we will feel that this mountain range is really too big.

Looking through the car window, the majestic mountain peaks stand tall, and the topography of the mountain is clear under the blue sky and white clouds. It is not difficult to understand why the cold air is effectively blocked when it passes through here, so that the air in the south will not be bitterly cold in the cold winter.

3. The geographical location of the Qinling Mountains and the environment in which it is located in the north and south should also play a very important role in the blocking effect of cold air. The reason why the Qinling Mountains can play such a significant role in climate regulation is also closely related to its geographical location. If we have the opportunity to take an airplane and look down from above, we will see this huge mountain range, which is really majestic and tall, and it is different.

Do you have any own understanding of why the Qinling Mountains can stop the cold air from moving south?

First of all, because of the high altitude of the Qinling Mountains, it can play a certain role in blocking cold air. Secondly, the cold air comes from the southeast and northwest, and it also consumes some vitality when it reaches the Qinling Mountains.

Because the high altitude of the Qinling Mountains has a certain blocking effect on the cold air going south and the warm and humid air flow going north, and at the same time, the cold air will be almost consumed when it travels long distances from west to east and from north to south, and moves over mountains and mountains, so it is blocked.

The mountains are relatively high. The terrain in the west is relatively low, and the Qinling Mountains are relatively high, which just blocks the cold air from the north.

The Qinling Mountains stretch endlessly, with an average altitude of 3,000 meters, and after the cold air from the south arrives, it is impossible to cross the mountains. Similarly, the warm air from the north could not pass. The Qinling Mountains single-handedly divided the north and south of China.

In winter, the Qinling Mountains can block the cold air from the south, weakening the Hanjiang River Valley and the Sichuan Basin under the influence of the winter monsoon, and the average winter temperature in these areas is higher than that in the middle and lower reaches of the Yangtze River at the same latitude.

It can be seen from the trend of the 0°C isotherm in China in January that the 0°C isotherm bends slightly to the south in the middle and lower reaches of the Yangtze River plain, and the 0°C isotherm bends slightly to the north through the Sichuan Basin.

<> Qinling Mountains is a huge mountain range in the middle of China, the dividing line of physical geography and climate between the north and south of China. The South and the North, the South and the North, all exist because of the existence of this mountain range.

Qinling's extraordinary life experience.

Li Daoyuan once recorded in the "Notes on the Book of Water": During the Qin and Han dynasties, there was a black dragon from the Qinling Mountains to the Wei River to drink water, and the place where it passed formed a soil mountain, shaped like a dragon, and the Longshou Mountain was changed by this dragon. The dragon's head is now Longshou Village, and the dragon's tail is in today's bell tower.

Geography believes that the root of many mountain ranges in Chinese mainland is the Kunlun Mountains. Therefore, before Qin Shi Huang unified China, the Qinling Mountains were called Kunlun; Later, because the Qinling Mountains stood in the south of the capital of the Qin State, the Qinling Mountains were also called Zhongnan Mountain, or South Mountain.

Regarding the name of the Qinling Mountains, it is generally believed that it originated from the prestige of the ancient Qin people and the Qin Empire. The earliest texts describing the Qinling Mountains in ancient times are the Classic of Mountains and Seas and the Yugong. The Yugong was written roughly during the Warring States period, and in its textual description, the layout of the Chinese mountains is a system of "three strips and four columns", of which the Qinling Mountains are listed as the middle strip.

However, it was not until Sima Qian wrote the sentence "Qinling, the great obstacle of the world" in his famous "Historical Records" that Qinling had an official written record.

The natural boundaries of the Qinling Mountains.

Until the 50s of the last century, people had been ascribed to the south and north of China, and the Yangtze River basin and the Yellow River basin in general. Later, scientists drew an east-west horizontal line on the map of China with the Qinling Mountains and the Huai River as the boundary, as the geographical dividing line between the north and south continents.

Winter is coming, the Guanzhong area north of the Qinling Mountains is cold and windy, icy and snowy, and people can only survive this cold season by guarding the hot kang and the fire;

The Hanzhong Basin, which is only separated by a mountain from the Guanzhong region to the south of the Qinling Mountains, is still green and green. After the cold snap, the snow covers the north and south of the river, and the frost weather can cross the Nanling Ridge and push the oppressive chill to Guangdong, which crosses the Tropic of Cancer. The Sichuan Basin, nearly 1,000 kilometers away from the Tropic of Cancer, is still full of flowers, becoming the only province in China other than Hainan Island to be protected from frost, and the Qinling Mountains play a decisive role.

A mountain range can change the natural pattern of Chinese mainland, and its status is enough to be admired.

The political and economic status is very high. Qinling is located on the dividing line between the north and south of our country, has a very important historical position, but also has a very important military strategic position in ancient society, the advantages of Qinling are irreplaceable.

The Qinling Mountains stretch for hundreds of kilometers in Shaanxi, not only nourishing the fertile soil of Qinchuan, but also playing a pivotal role in the overall situation of the country and the development of the nation.

The Qinling Mountains are the dividing line between the north and the south, and it is also a place where ancient soldiers must fight, which is easy to defend and difficult to attack, and has a very important strategic position. By single-handedly, it has changed the pattern and climatic conditions of the North and the South.

How did the Qinling Mountains block the cold air from the south? First of all, the high altitude of the Qinling Mountains has a certain blocking effect on the cold air going south and the warm and humid air flow going north, but at the same time, the cold air travels long distances from west to east and from north to south, and moves over mountains and mountains to this time also consumes "vitality". Even if there is cold air with strong "stamina", the strength is obviously weakened after struggling to climb the mountain, so it causes the phenomenon of Qinling "blocking" the cold air.

However, not all cold air can be "blocked" by the Qinling Mountains, and when strong cold air hits, it can still "break through" the past and affect the southern region of China.

The high altitude of the Qinling Mountains has a certain blocking effect on the southward movement of cold air and the northward movement of warm and humid airflow, but at the same timeThe cold air travels long distances from west to east and from north to south, and moves over mountains and mountains to this time also consumes "vitality", and when it arrives in Qinling, the cold air will be consumed more if it climbs, so the cold air that is not strong enough to "walk" to this has no "stamina".Even if there is cold air with strong "stamina", the strength is obviously weakened after struggling to climb the mountain, so it causes the phenomenon of Qinling "blocking" the cold air.

However, not all cold air can be "blocked" by the Qinling Mountains, and when strong cold air hits, it can still "break through" the past and affect the southern region of China.