What is the abbreviation of "shadow office"?

"Shadow Office" is the abbreviation of weather modification office.

The weather modification office is a directly affiliated institution under the leadership of the provincial or municipal (district, county) meteorological bureau and a local meteorological institution.

The main task is to artificially influence the weather, including activities to avoid or mitigate meteorological disasters, make rational use of climate resources, and artificially influence the physical and chemical processes of the local atmosphere through scientific and technological means under appropriate conditions to achieve the purposes of increasing rain and snow, hail suppression, rain elimination, fog elimination and frost prevention.

Working principle of weather modification office;

The Office of Weather Modification applies the physical principles of clouds and precipitation, and mainly adopts the method of seeding catalysts into the clouds, which is a scientific and technological measure to transform local weather processes into a direction beneficial to human beings. Also known as weather control. Artificial precipitation enhancement, hail suppression, cloud elimination, fog elimination, frost prevention, storm (typhoon) mitigation and lightning suppression.

The energy of natural weather process is enormous. The amount of water vapor condensed by a storm is about 6.5438+million tons, and its latent heat of condensation is about 2.5× 10 16 joules, which is equivalent to the heat of burning 4.8 million barrels of oil.

The heat released by the condensed water vapor per minute of a typhoon is equivalent to the energy released by the explosion of a 20 million-ton nuclear bomb. It is actually impossible and uneconomical to directly consume so much energy to create or eliminate a weather process.

Therefore, it is necessary to find the available conditions in the natural weather process and promote it to the predetermined direction at a small cost. This is an experiment of weather modification.

Refer to the above? Baidu encyclopedia-shadow office