We have a northwest wind this winter, what kind of wind does it blow in the southern hemisphere wint

What kind of wind blows has little to do with the northern and southern hemispheres. It is affected by the pressure zone (equatorial low pressure, subtropical high pressure, subpolar low pressure, polar high pressure) and geostrophic deflection forces. When the angle of yellow-red intersection is zero, there is no friction, land obstruction, and everything is ideal.

It is the southeast trade wind between 0 30 south of the equator, the westerly wind between 30 and 60, and the polar easterly wind between 60 and 90 (the northeast trade wind in the northern hemisphere, which prevails westerly and polar easterly). Of course, this is only a theoretical state, not in practice. Just like in our country, the southeast wind in summer and the northwest wind in winter, unlike the above.

Another example is India, where the southwest wind in summer and the northeast wind in winter are also different from the theoretical wind direction of his latitude (the difference between the two countries is affected by the difference in thermal properties between land and sea and the movement of the wind belt in the barometric belt).

As for the southern hemisphere wind direction. Since there is very little land, it is only affected by the movement of the pressure belt wind belt caused by the yellow-red angle, and generally follows the theory that the southeast trade wind between 0 30, the westerly wind prevails between 30 and 60, and the polar east wind between 60 90, but it also changes with the seasons. And the terrain also has an effect on the direction of the wind:

Between 0 30 the Great Dividing Range of Australia on the southeast trade wind belt, between the 30 60 prevailing westerly wind belt, the Andes Mountains of South America and the East African plateau of Africa. all have an impact on the direction of the South American wind.

In the southern hemisphere, southeasterly trade winds, southwesterly winds and very low easterly winds are blowing in almost all winters.

Asia is the most famous monsoon region in the world, with the northeast monsoon prevailing in winter (November to March) and the southwest monsoon in summer (June to September). Spring and summer are the transition period between summer and winter monsoons. Their transitions are explosive mutagenesis, with short transition periods in between.

However, the seasons vary from region to region, so the division of the monsoon is not exactly the same.

Meteorologically, the direction of the wind is determined as the direction of the wind, and according to observations, North China and the Yangtze River basin in China.

South China and coastal areas.

In winter, there are more northerly winds (northerly, northeasterly, northwesterly), and in summer, southerly winds (southerly, southeasterly, southwesterly).

Generally speaking, the four winds in the southeast and northwest can correspond to the four seasons of spring, summer, autumn and winter. In ancient poetry, the direction of the wind can be used to refer to the season.

The wind direction is generally not too specific to the law, and there should be no specific reason for spring, summer, autumn and winter.

In summer, the southeast wind blows, and in the winter it blows from the northwest.

The reason why the southeast wind blows in the summer and the northwest wind in the winter:

Although part of China is located on the westerly wind belt, because of the potato town China is located between the world's largest continent and the world's largest ocean! Due to the difference in the thermal properties of land and sea, there is low pressure on the continent in summer, and high pressure on the ocean, so the southeast wind blows in China in summer.

In winter, there is high pressure on land and low pressure on the ocean, and the wind blows from high pressure to low pressure! Northwest winds blow in our country in winter. In addition, China is controlled alternately by winter and summer monsoons, that is to say, the northwest wind and the southeast wind are alternately controlled throughout the year, the northwest wind is dominant in the winter half of the year (autumn equinox calendar leakage to the spring equinox of the following year), and the southeast wind is dominant in the summer half of the year (spring equinox to autumn equinox).

In addition, the northeast wind blows in the southwest of China in winter and the southwest wind in summer, which is also caused by the difference in the thermal properties of land and sea.

The temperature in the sea and on land in our country is not the same. In winter, the ocean is warmer than the land. Whereas, the air flow is always in the direction of the cold air towards the hot air.

As a result, the winter winds always blow from the land to the ocean to the southeast, which is why there is always a northwesterly wind in winter.

In areas where the sea is located in the north (such as Tianjin), it is easy to blow northerly winds in winter, and the reason for this starts with the formation of wind. Wind is formed by the flow of air, and on the ground it flows from low to high, which is what we usually call the direction of the wind.

In winter, the ocean current in the sea also changes greatly compared with summer, mostly cold currents, due to the temperature difference between the ground and the sea surface formed by the cold current, the formation of a cold wind, at this time the temperature of the sea surface is much lower than the ground, the formation of the wind is blowing to the land, that is, the north wind.

China's location is the land in the north, the ocean in the south, the specific heat of the ocean and land is different, the land heats up quickly, the cooling is also fast, the temperature of the land in summer is relatively high, forming a low pressure; In winter, the temperature is relatively low, forming a center of high pressure. In summer, the wind blows from the sea to the land, which, combined with the geostrophic deflection force, forms the southeast monsoon. In winter, the wind blows from the land to the ocean, which, combined with the geostrophic deflection force, forms the northwest monsoon.

China's location is the land in the north, the ocean in the south, the specific heat of the ocean and land is different, the land heats up quickly, the cooling is also fast, the temperature of the land in summer is relatively high, forming a low pressure; In winter, the temperature is relatively low, forming a center of high pressure. In summer, the wind blows from the sea to the land, which, combined with the geostrophic deflection force, forms the southeast monsoon. In winter, the wind blows from the land to the ocean, which, combined with the geostrophic deflection force, forms the northwest monsoon.

The cause of the formation of wind is due to the difference in air pressure, from high pressure to low pressure. In other words, air pressure is the direct cause of wind. On the one hand, the difference in air pressure is caused by uneven heat and cold.

In hot areas, the airflow is up, so a low pressure forms near the surface; Conversely, high air pressure is formed in cold places.

This is due to the special geographical location of China and the difference in the thermal properties of land and sea.

The wind blows from high pressure to low pressure. Although some of our country is located in the westerly wind belt, because our country is located between the world's largest continent and the world's largest ocean, due to the difference in the thermal properties of sea and land, there is low pressure on the land in summer, and high pressure on the ocean, so China blows southeast wind Jingmin in summer.

In winter, there is high pressure on the land and low pressure on the ocean, and the northwest wind blows in our country in winter.

In addition, our country is controlled by the winter and summer monsoons alternately. That is to say, the northwest wind and the southeast wind are controlled alternately throughout the year.

In the winter half of the year (autumn equinox to the spring equinox of the following year), the northwest wind is dominant, and in the summer half of the year (spring equinox to the autumn equinox), the southeast wind is dominant.

In winter, the northwest wind blows only in the eastern monsoon region. The eastern and southern parts of the country are close to the Pacific and Indian Oceans. In winter, the hot air over the Sunwu Ocean expands and becomes thinner, and the air pressure is low.

On the contrary, the volume of cold air on the continent shrinks and the air pressure increases, creating a powerful high pressure. Zeheng, or the center of this high pressure, is generally found in Mongolia and Siberia. Just as water flows to a lower place, so does air flow from a place with high air pressure to a place with low air pressure.

When cold air flows from Mongolia and Siberia to the Pacific and Indian Oceans, northerly winds form in winter.

Yes. Every winter, a cold snap blows from Siberia and affects a large area.

Probably because the winter cold spell is generally ...... from Siberia

It's like a good northwest wind in the Second Ring Road.

Because the cold air from Siberia came. Because the winter is cold in Siberia, the air is convection, so it blows from the northwest.

In winter, the oceans are much warmer than the land cavities. And the air flow is always cold and roundstone air flows in the direction of hot air. Therefore, the wind in winter always blows from the land to the ocean in the southeast, which is why the wind always blows from the northwest in winter.

Please come to the second volume of geography on the first day of junior high school. Published by Lingnan Publishing House. Chapter 1, Asia. In addition, combined with the climate of the previous volume.

Because we always eat the northwest wind, the others don't.

In winter, the northwesterly wind blows in our country, and this is because it comes from Siberia.