Geography On the question of temperature inversion, which areas are temperature inversion climate re

The temperature inversion phenomenon can inhibit the occurrence of sandstorms to a certain extent, which is also very beneficial to the flight of aircraft, and can also be applied to grain planting to improve yield and potato quality.

The dams in China's Sichuan Basin and Yunnan-Guizhou Plateau are affected by temperature inversion, which is beneficial to agricultural production.

In some hillside or river valley areas. The temperature inversion lasts for half a year from October to March of the following year. In January, the slope inversion layer was 400 meters thick and the inversion intensity was 5.

The inversion zone effectively improves the temperature level of the valley in winter, and the perennial fruit trees do not need to bury the soil during winter, and the frost damage can be avoided or reduced, and the fruit hardness is high and the quality is good. Vegetable planting can reduce heat input and improve economic benefits.

The heat of the tropospheric atmosphere mainly comes directly from the long-wave radiation from the ground, and in general, the farther away from the ground, the lower the temperature, that is, the temperature decreases with altitude, and the average vertical decline rate is meters. However, under certain conditions, the temperature at a certain height of the troposphere sometimes rises with the increase of altitude, and this phenomenon of temperature reversal is called temperature inversion.

There are four main causes of temperature inversion:

1) Radiation inversion: It often occurs in clear and cloudless nights, due to the strong effective radiation on the ground, the temperature near the surface layer drops rapidly, and the air layer in the high altitude cools less, resulting in the phenomenon of warm up and cold at the bottom. This inversion is strongest before dawn and disappears from top to bottom after sunrise.

2) Advection inversion: The warm air moves horizontally to the cold ground or air layer, and the lower layer of the warm air is affected by the cold ground or air layer and cools down rapidly, and the upper layer is less affected and cools down more slowly, thus forming a temperature inversion. It occurs mainly in the mid-latitude coastal areas.

3) Topographic temperature inversion: It is mainly caused by topography, mainly in basins and valleys. Due to the rapid heat dissipation on the hillside, the cold air sinks along the hillside to the valley bottom, and the original warmer air at the valley bottom is squeezed up by the cold air, resulting in the phenomenon of temperature displacement.

4) Sinking inversion: In the high-pressure control area, there is a large-scale downdraft at high altitude, and due to the effect of the adiabatic warming socks of the sinking airflow, the termination height of the sinking movement is inverted. This type of inversion is more common in tropical anticyclone regions, and it is characterized by a large range and occurs at a certain altitude without grounding.

This anti-family temperature sometimes acts like a lid to prevent upward turbulent diffusion, and if it continues for a long time, it can have a very negative effect on the dispersion of pollutants.

The existence of temperature inversion has a considerable impact on the weather and the spread of atmospheric pollution. It hinders the vertical movement of air, hinders the rapid diffusion of soot, pollutants, and water vapor condensates, facilitates the formation of fog and deteriorates visibility, making air pollution more serious.

From left to right, day, sunset, night, and the next morning. The reason is a bit complicated, do you need to know?

Hello lz.

This is not the case with high air temperatures. It can be said that the higher the air temperature, the smaller the seasonal variation.

Therefore, when the ground temperature is very low in winter (especially when the cold front passes through and the upper altitude is still controlled by a warm air mass), it is easy to have a situation where the ground air temperature is lower than that of the upper altitude (not in line with the law that the higher the altitude, the lower the temperature), that is, the inversion layer appears.

Of course, this is not the case in spring, summer and autumn! Usually the ground is warmer than the sky. There are only very few exceptions (e.g. typhoons, but that's a different story).

Under normal circumstances, with the increase of altitude, the temperature gradually decreases, but due to the influence of factors such as changes in air masses, the phenomenon that the high-level air temperature may be higher than the low-level may occur, this phenomenon is called temperature inversion, this space layer is called the inversion layer, when the aircraft flies in the atmosphere, the atmosphere is relatively stable, plus the weight and wingspan of the aircraft, its turbulence is not very large, and it is not easy to detect under normal circumstances, but once it enters the turbulent layer, the atmosphere occurs more violently up and down turbulence, which may lead to turbulence, Anyone who flies often has this experience, and the flight attendant will also remind you that the plane is a little turbulent due to turbulence, so please fasten your seat belt. Therefore, under certain air flow conditions, the aircraft will also be more turbulent, and even accidents may occur.

Type: Radiative inversion, advection inversion, radiative inversion.