Can artificial rain enhancement by humans make it rain in the sky at any time?

Human artificial rain enhancement cannot make the sky rain at any time, because extremely harsh conditions are required to successfully rain, and artificial rain is only an auxiliary role.

Artificial rain by humans is that there are some clouds in the original sky, and dry ice (liquid carbon dioxide) is released in the clouds, but if there are not enough clouds in the sky, it can't.

No. The key to the formation of rain and snow lies in the emergence of liquefaction or decomposition temperature conditions and the existence of condensation nuclei, and artificial precipitation enhancement is to artificially provide these conditions to promote the liquefaction or condensation of water vapor and the merger of water droplets. Rain is not something you want to increase or you can increase if you want, but it requires certain weather conditions.

Artificial rainfallThe difference between artificial rainfall and artificial rainfall is that the effect is different, artificial rainfall is to increase rainfall, and artificial rainfall is to produce rainfall, and the two methods are different, artificial rainfall enhancement is to send rainfall catalyst (condensation nucleus) into the clouds, and artificial rainfall is to spread in the cloudsDry ice, silver iodide, salt powder and other catalysts, and the conditions required for the two methods are different.

1. The role is different

Artificial rain enhancement is that the sky will rain, but people are not very satisfied with the amount of rainfall, so they will change it from the artificial aspect, so this is artificial rainfall.

The artificial rainfall is because the weather is too dry and it has not rained, and people really can't bear this dry weather, so they choose artificial rainfall.

2. The methods are different

Artificial precipitation enhancement is the use of rockets and other means of transmission to send rain-enhancing catalysts (condensation nuclei) into the clouds, so that more small water droplets in the clouds become raindrops and fall, thereby increasing the amount and range of rainfall.

Artificial rainfall refers to the selection of a suitable time according to the physical characteristics of different cloud layers, using airplanes and fire digging arrows to sow dry ice, silver iodide, salt powder and other catalysts into the clouds, so that the clouds can be precipitated or the amount of precipitation can be increased.

to alleviate or alleviate drought in farmland, increase the amount of irrigation or water supply capacity in reservoirs, or increase the amount of electricity generated.

3. The requirements are different

Artificial precipitation clouds need to meet three conditions: the cloud thickness should be greater than 2 km; Let the clouds be full of moisture; There are updrafts zone.

Artificial rain can only be carried out when the rain has fallen or is close to precipitation, and it is not possible to artificially reduce the rain if it is a sunny day when the sun is shining.

If there are no clouds, clear skies, and no moisture, then artificial rainfall enhancement is not possible.

Artificial precipitation enhancement is to increase the amount of precipitation on the basis of precipitation.

To carry out artificial precipitation enhancement operations, the following conditions need to be met: First, there must be precipitation clouds rich in water vapor in the air, which is the basic condition for artificial precipitation enhancement. We know that when the cold air mass and the warm air mass meet, they "fight" before it rains; Second, suitable airspace conditions.

Rockets are used in the rainfall enhancement operation in Jiangsu, and the rockets are launched at a distance of 4 to 6 kilometers. However, such an altitude will affect the flight safety of the aerial vehicle; Third, the demand for artificial rain enhancement of relevant departments.

No way. Cloudy or sunny weather does not allow artificial rainfall.

Artificial precipitation refers to the process of artificially supplementing certain necessary conditions for the formation of precipitation according to the principle of precipitation formation in nature, and promoting the rapid condensation or collision of cloud droplets and increase into raindrops and falling to the ground.

Artificial rainfall is conditional. Generally, under the condition that natural clouds have been precipitated or close to precipitation, the method of artificial precipitation can play a role.

The first is that there must be clouds in the sky, and without clouds, no one can make rain out of thin air. Secondly, the clouds also need to have certain conditions before artificial rainfall is possible. For example, there should be large water droplets in warm clouds above 0; There should be ice crystals in cold clouds below 0.

Without this condition, no matter how good the cloud conditions are, it will not rain.

In natural circumstances, such microphysical conditions are sometimes not available; Sometimes it is available, but it is not sufficient. The former does not produce precipitation at all; In the latter, there is very little rainfall. At this time, if artificial ice cores are sown into the clouds, the ice-water transformation process of condensation or condensation will occur in the clouds, and then with the help of the natural collision and merging process of water droplets, rainfall can be produced or increased.

Therefore, artificial rain enhancement is not "out of nothing", and must have certain conditions for clouds and water in the air.

In other words, artificial rain does not produce precipitation in the sky "out of nothing", but "helps" the clouds to meet the conditions for precipitation, so that it rains in the clouds, or turns light rain into heavier rain. Therefore, artificial rainfall is also called artificial rainfall.

According to the physical characteristics of different clouds, the use of catalysts such as dry ice, silver iodide, salt powder, etc., to promote the rapid condensation of cloud droplets into water droplets, and then make them fall to the ground, which is artificial rainfall.

It is difficult to artificially rain when there are few clouds.

"Artificial rain stopping" is not impossible! It's just that the cost will be quite large and the controllable range is small.

"Artificial rainfall" is a means of artificial weather modification, and in a strict sense, it should be called "artificial rainfall". Because it is not intended to be achieved by precipitation in the sky, it is subject to meteorological operating conditions. If the sky gathers "rain clouds", you can "cast spells".

Often, these clouds are not the kind of clouds that are obedient and stay there and do not move, so the staff of the meteorological department use "rain rockets" to induce them to "pump water" from the sky without moving.

On the contrary, to "stop the rain artificially", to put it bluntly, is to disperse the dense dark clouds in the air, but this reverse operation is not only more costly, but also the effect is not obvious. "Artificial rain enhancement" can basically realize precipitation over a city, but "artificial rain stopping" only uses means to "drive" the clouds in a specific area of the air to other areas, and only makes the area under the clouds hit by "**" not precipitation.

For example, during the Beijing Olympic Games, our country's meteorologists used this "novel" method to prevent precipitation at the opening ceremony. However, it is obviously not realistic or universal to use such a large amount of manpower and material resources just to keep a place the size of a golf course from raining.

Artificial rainfall principle:

According to the physical characteristics of different clouds, choose the right time to use airplanes, rockets, etc. to disperse dry ice, silver iodide, salt powder and other catalysts into the clouds to promote cloud precipitation or increase precipitation.

The microphysical process of artificially influencing clouds can make clouds that could not precipitate naturally under certain conditions be stimulated and precipitated, and can also make those clouds with more water and often able to precipitate naturally, improve the precipitation efficiency and increase the amount of precipitation. However, clouds that cannot be naturally precipitated have less water, so the economic value of artificial catalysis is limited.

People sometimes often confuse artificial rainfall with artificial rainfall, in fact, artificial rainfall and artificial rainfall are different things, and they also have a very big difference, first of all, they are all artificial, so it is a man-made event, which they are all the same, in fact, we can literally we can distinguish between artificial rainfall and artificial rainfall.

Artificial rain enhancement is actually the sky will still rain, but people are not very satisfied with the size of the rainfall, so they will change it from the artificial aspect, so this is artificial rain, artificial rain enhancement is not that the sky will not rain, but because the sky will rain, but the amount of rain in the world is too little, this is why people choose artificial rainfall, and this is also the essence of artificial rainfall, so we can also distinguish artificial rain enhancement and artificial rainfall from this point.

A big difference between artificial rainfall and artificial rainfall is that artificial rainfall is because the weather is too dry, and it has not rained, and people really can't tolerate this dry weather, and choose artificial rainfall, so this is actually a big difference between artificial rainfall and artificial rainfall, so we can also clearly know that artificial rainfall is because the sky cannot rain, and people choose artificial rainfall, which is actually a big difference between artificial rainfall and artificial rainfall. So we can also know the difference, and the difference is also very obvious.

In fact, we can literally distinguish the difference between artificial rainfall and artificial rainfall, but they are all man-made behaviors, so we can also understand this difference in depth, and we can also see that this difference is also very obvious, for artificial rainfall and artificial rainfall, it is a different measure.

Rain is in the sky, not artificially falling, human beings only help cloud droplets or ice crystals to increase to a certain extent, fall to the ground, and form precipitation, so it should be called artificial rainfall.

Artificial rain enhancement is to send a rain enhancement catalyst into the clouds through rockets and other means of transmission, so that more moisture in the clouds will become raindrops and fall. In fact, if you want to succeed in artificial rainfall, there must be certain conditions, there must be clouds in the sky, if it is a cloudless sunny weather, even if you put rain rockets below, it is useless, and the rain still can't fall. So in summary, artificial rain enhancement does not actually produce rain, but only gathers potential rain and makes it have enough weight to fall to the ground.

Artificial rainfall is based on the physical characteristics of different clouds, choose the right time, use airplanes, rockets to sow dry ice, silver iodide, salt powder and other catalysts into the clouds, so that the clouds precipitation or increase the amount of precipitation, so as to relieve or alleviate the drought of farmland, increase the irrigation water or water supply capacity of reservoirs, or increase the amount of power generation.

Artificial rain enhancement is the original rain that makes the rain heavier, while artificial rainfall is the original no rain and makes the sky rain.

Artificial rain enhancement is not the rain created by the meteorological department out of thin air, but the presence of clouds in the sky suitable for operation. The meteorological service uses various means to keep the rain clouds that have just passed through to make them rainy. According to the principle of meteorology, the generation of general natural precipitation requires not only certain macroscopic weather conditions, but also microphysical conditions in the clouds.

For example, there should be large water droplets in warm clouds above 0; Cold clouds below 0 should have ice crystals in them. Without this condition, no matter how good the weather conditions are, no matter how good the cloud conditions, it will not rain.

Artificial rainfall is rainfall enhancement when rainfall is already abundant, while artificial rainfall refers to rainfall due to perennial drought.

Artificial rainfall enhancement refers to increasing the amount of rainfall on the basis of the original rain, and artificial rainfall refers to the original non-raining and human intervention to make it rain.

Artificial rainfall enhancement is to increase the amount of rainfall in a rainy state, and artificial rainfall belongs to all rainwater, all of which come from artificial rainfall.

At present, two catalysts are mainly used in artificial rainfall in China:

1. Dry ice, that is, carbon dioxide, cools the surrounding air layer to tens of degrees below zero when vaporized, thereby causing the condensation of water droplets.

2. Silver iodide, first-class ability of "rain-making". Silver iodide is a chemical with very low toxicity. Silver iodide is highly efficient in making ice crystals, usually a cumuloniform cloud can be effective by spreading only a dozen or dozens of grams, and the dosage is very low, almost negligible, so it does not cause any pollution.

There are two ways to do artificial rainfall:

1. Aircraft spreading coolant.

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2. Shoot at the clouds or launch rockets to create a powerful shock wave.

Dry ice can be used for artificial rain! In fact, it is the solid carbon dioxide carbon dioxide gas under the condition of pressurization and cooling, it will become a colorless liquid, and then reduce the temperature, it will become a snowflake-like solid, and after being compressed, it will become dry ice, which can be directly turned into gas at -78 at a standard atmospheric pressure

Why does dry ice have the ability to "call the wind and rain"?

As you know, it doesn't rain, either the water vapor has not encountered condensation nuclei, and it does not form small water droplets, or it has condensed small water spots, because the temperature is too high, and it has evaporated before it falls to the ground When the plane scatters dry ice in the air, it immediately vaporizes, grabbing a large amount of heat from the clouds, making the clouds cold to -40

Each gram of dry ice can produce 10 billion Xiaoice crystals, and when the surrounding clouds touch the Xiaoice crystals, they will condense into large water droplets centered on it, and it will rain in the demolition macro section