Harm of artificial rainfall to nature

Some people worry that artificial precipitation enhancement will be harmful to health. In fact, artificial precipitation enhancement has no harm to environmental factors such as atmosphere and water. Meteorologists say that artificial precipitation enhancement is a microphysical process, not a chemical change of new substances.

At present, more than 30 countries in the world are conducting 100 research on weather modification. The work of weather modification in China began in 1958, and has developed to now, with the largest scale in the world, and it is a veritable weather modification country. Weather modification refers to artificially changing the microphysical structure of clouds, fog and precipitation according to the formation mechanism and natural evolution law of clouds, fog and precipitation under appropriate conditions, and affecting the growth process of clouds, fog and precipitation plastids.

At present, weather modification mainly includes artificial precipitation enhancement, hail suppression and cloud elimination, fog elimination, frost prevention and artificial lightning induction on airport roads. Artificial precipitation enhancement is a scientific means to increase part of rainfall in addition to natural rainfall by means of artificial intervention under favorable weather conditions.

major function

Its working principle is that the solution containing silver iodide, dry ice, liquid nitrogen and other catalysts is scattered on the top of the clouds by plane, or the artillery shells containing catalysts are fired into the clouds by anti-aircraft guns, rain-increasing rockets and balloons carrying catalyst smoke bombs. And it explodes in the clouds, catalyzing the clouds in the air in a local range and increasing the ice crystals in the clouds. Or increase the ice crystals and water droplets in the cloud to form precipitation.

Artificial hail suppression is to affect the clouds that can produce hail over an area, so that hail embryos in the clouds cannot develop into hail, or small ice particles fall to the ground to become big hail. The warhead with catalyst (silver iodide) was shot into the supercooled area of hail cloud with anti-aircraft guns or rockets, and the particles of catalyst acted as ice cores. Numerous ice cores will absorb supercooled water droplets to prevent hail particles from getting bigger or delay the growth of hail.