What is the reason for the large temperature difference between the north and the south in winter?

The reasons for the large temperature difference between the north and the south in winter in China include:Latitude factors, monsoon factors, topography

1. Latitude factor. The north-south span of China is very large, and the difference in latitude directly leads to the difference in the solar altitude angle and the uneven distribution of heat. The direct solar exposure point in the southern hemisphere in the winter half of the year, the distribution law of the solar altitude angle in the northern hemisphere is that the higher the latitude, the smaller the solar altitude angle, the weaker the solar radiation, and the smaller the heat received by the locality, so the heat in the north is less than that in the south, resulting in a certain temperature difference between north and south.

2. Monsoon factor. The coastal zone of our country is greatly affected by the monsoon. Due to the difference in the nature of land and sea, the continent forms a cold high pressure while the Pacific Ocean forms a warm high pressure, which promotes the formation of the winter monsoon. From Siberia.

The cold air blowing (northwesterly) brings drastic cooling to the north.

3. Terrain. Often, the arrival of cold air does not have a profound impact on the south, because there are many tall mountain ranges in the east-west direction and northeast-southwest direction in China, such as the Daxing'an Mountains.

Yinshan Mountain Range, Helan Mountain.

Wait a minute. After their reduction, the power of cold air has been reduced a lot, plus if you want to reach the south, you have to cross the Qinling Mountains.

Naturally, the power is greatly reduced, so the formation of the temperature difference between the north and the south is exacerbated.

Reason: There is a large difference in latitude between the north and the south.

1. In winter, the temperature difference between the north and the south is large, the south is warm, and the temperature is lower the further north you go.

Because the Earth is a sphere, the solar altitude angle in the south is larger than in the north; In winter, the southern part of the country has longer daylight hours than the northern ones; The north is also close to the birthplace of the winter monsoon, so the temperature difference between the north and the south in China is large in winter, the south is warm, and the north is cold. In January, the 0 degree Celsius isotherm roughly passed through the Qinling-Huaihe line in China;

2. In summer, the whole country is generally hot, and the Qinghai-Tibet Plateau is the coolest place in China.

In summer, the direct sun point moves northward, the solar altitude angle in the north also increases, and the daylight time is longer than that in the south, the winter monsoon disappears, and the summer monsoon continuously sends heat, so the temperature in the north and south is generally higher. Only the Qinghai-Tibet Plateau and other high mountains and plateau areas, because of the high altitude, the temperature is low.

In summer, the direct point of the sun is located in the northern hemisphere, and the days are short in the southern part of China, and the sun height is high at noon. The northern regions have long days and a lower midday sun height, and the ground in the south receives slightly more heat than in the north, and the temperature is slightly higher than in the north. Therefore, the temperature difference between the north and south of China is small in summer.

Characteristics of temperature distribution in China: Because of the vast territory of China, there is a large difference in latitude between north and south. From the dark sand of Zengmu near the fourth degree north latitude to the center line of the main channel of the Heilongjiang River north of about 53 degrees north latitude and north of the Mohe River, the difference between north and south is about 50 degrees.

The Tropic of Cancer passes through the southern part of our country, so most of our country is located in the northern temperate zone, and a small part is located in the tropics, and there is no cold zone.

The large temperature difference between the north and south in winter in China is caused by the combined influence of the monsoon factors caused by the difference in latitude factors, topographic factors, and the difference in the thermal properties of sea and land, among which the main reason for the large temperature difference between north and south in winter is latitude factors.

The reason for the large temperature difference between the north and the south in winter is the influence of geographical location and the influence of the monsoon.

1. Latitude. China has a large north-south span, and the difference in latitude directly leads to the difference in the altitude angle of the sun, and the heat distribution is uneven.

2. Monsoon. The coastal zone of our country is greatly affected by the monsoon. Due to the difference in the nature of land and sea, the continent forms a cold high pressure and the Pacific Ocean forms a warm high pressure limb that promotes the formation of the winter monsoon.

The cold air blowing from Siberia (northwesterly winds) brings drastic cooling to the north.

3. Fluid topography. Often the cold air does not have a profound impact on the south, that is because there are many tall mountain ranges in the east-west, northeast-south-west, such as the Great Xing'an Mountains, Yinshan Mountains, Helan Mountains and so on. After their cuts, the power of cold air has been reduced a lot.

This is very closely related to the geographical location of our country and the different climatic characteristics of the north and south. To sum up, there are several main points:

1. China has a vast territory. The distance between the north and the south is long, and the geographical perspective is the low latitude in the south and the high latitude in the north, with a difference of more than 30 degrees. The sun shines directly over the southern hemisphere during the northern hemisphere winter, resulting in stronger solar radiation intensity and longer sunshine hours in the south than in the north, and higher temperatures.

This is due to the latitudinal position, which leads to different solar radiation.

In summer, the sun shines directly on the northern hemisphere, and although the radiation intensity in the south is still greater than that in the north, the sunshine hours in the north are longer than those in the south, so that the difference in solar radiation between the north and the south will not be as big as in winter. The difference in temperature is not so big.

2. In the north, affected by the cold and high pressure of Mongolia and Siberia in winter, cold air often moves south to form a cold wave, which greatly reduces the temperature. The south, on the other hand, is affected by warm and humid air currents from the ocean, and the winters are mostly mild. This is due to the climate.

3. East-west mountain ranges, such as the Qinling Mountains.

It blocks the southward movement of the cold air mass, making the temperature in the south high and the temperature in the north very low, and the temperature difference is naturally large. This is due to the terrain.

Under the combined effect of a number of geographical factors (solar radiation, climate, topography), the temperature difference between north and south in China is much larger in winter than in summer.

In winter, the radiation from the sun is weaker in the northern part of the country, and cold air frequently moves south. The white snow outside the wild plum in the northeast region does not melt for a long time and reflects the solar radiation, which aggravates the drop in temperature!

1: The north-south span is large, which is due to latitude.

2: In the north, in winter, under the influence of the cold and high pressure of the western Mongolian rotten Beria, there are often cold air moving south to form a cold wave, which greatly reduces the temperature. The south, on the other hand, is affected by warm and humid air currents from the ocean, and the winters are mostly mild. This is the original chain pin of the climate.

3: The east-west mountain hunger calls for liquid veins, such as the Qinling Mountains, which blocks the southward movement of the cold air mass, making the temperature in the south high and the temperature in the north very low, and the temperature difference is naturally large. This is due to the terrain.

There is a large difference in temperature between the north and the south in winter, the south is warm, and the temperature is lower the further north you go

The north and south of China span a large latitude, and the direct sun is in the southern hemisphere in winter, and the further north you go in the northern hemisphere, the lower the solar altitude angle, and the less solar heat The south of China is more affected by solar heat due to its low latitude and large solar altitude angle;

The north of China is close to the birthplace of the winter monsoon, which is obviously affected by the winter monsoon and the cooling range is large, while the south of China is far away from the birthplace of the winter monsoon and is blocked by the tall mountains, the influence of the winter monsoon is not obvious, the cooling range is small, and the temperature is high

Why is there a big difference between the north and the south in winter in China? This is mainly because our territory is relatively vast, so the north and south cross several latitudes, so the further south and closer to the equator, the higher the temperature, and the further north closer to the Arctic Circle, the cooler it will be.