How is weather modification achieved? How to operate specifically?

Ancient people often thought that complex weather changes were controlled by "immortals", so they encountered weather troubles. However, with the development of science and technology, modern human beings have mastered enough meteorological knowledge, which can not only predict the weather, but also influence it by artificial means.

Artificial precipitation enhancement

Artificial rainfall is the most common human influence in life. Under favorable weather conditions, it will be a scientific means to increase part of rainfall other than natural rainfall. Artificial rainfall is a meaningful measure, which can effectively carry out agricultural drought resistance, solve people's livestock water use and forest fire prevention, and also rationally develop and utilize cloud water resources in the air. Its principle is based on the nature, height, thickness, concentration and range of air, refrigerant, crystallization, absorbent and water mist. Clouds increase the concentration of crystals in clouds and make up for cloud condensation. Insufficient, strengthen the clouds in the clouds, promote cloud droplets, change the size, distribution and properties of cloud droplets, and accelerate the growth process of raindrops, thus achieving the purpose of precipitation.

Artificial cloud removal and rain reduction

In addition to increasing precipitation by artificial means, there are also artificial clouds and artificial rainfall. In a sense, this form is the expansion and extension of artificial rainfall, and the energy system accelerates the energy system in the upstream area of accretion clouds, making the weather system accelerate the energy system. Small water droplets in the air form rapidly, making the falling clouds enter the target area for rainfall; Or in the windward area of the target area, the ice sensitivity in the cloud makes it impossible to form enough raindrops, lumps and clouds with delayed precipitation.

Artificial hail suppression

Hail disaster is one of the main meteorological disasters in China. It has the characteristics of high development and long hail suppression ability, and often brings huge losses to agricultural production, construction, electricity, transportation and people's lives and property. As one of the important means of hail suppression, artificial precipitation enhancement can effectively avoid and reduce the number of suspected people on standby, and play an active role in disaster prevention and mitigation. The influence of artificial flood on the clouds that may produce hail in an area makes the clouds or small ice particles in the clouds fall to the ground before they become ice. There are two main methods of artificial flooding. One is to use high-tech guns or rockets to launch shells containing silver iodide to create too many artificial ice cores and realize too many artificial ice cores. Let's go Secondly, the plane flies directly into the cloud, sowing appropriate parts of catalysts such as silver iodide, adding ice crystals to the cloud, and producing excessive artificial ice cores.

Artificial defogging

Fog is close to the ground and is mainly divided into cold fog, warm fog and ice fog. For different types of fog, manual elimination methods are different. Freezing fog mainly spreads iodine-iodine refrigerant or dry ice, liquid nitrogen, propane, etc. , thus producing a large number of ice crystals, which grow and settle rapidly, reducing the concentration of fog. There are three ways to heat the fog: one is the water absorbent of the rotator, such as calcium chloride solution and salt powder in the fog to form precipitation, thus reducing the concentration of the fog; The second is to spray high-temperature gas into the fog area for thermal evaporation. Third, use the propeller to mix dry and wet air up and down to eliminate fog.