What should I do if it rains during the National Day military parade? What should I do if the National Day military parade encounters rainy weather?

1, forecast the weather very accurately in advance. China's third generation aviation numerical forecast system was used in this military parade. This system is based on a computer that performs 10 trillion operations per second. The time change is accurate to 3 hours, and the horizontal resolution is accurate to 30 kilometers. Then, if the weather is not strong enough, we must use the power of science!

2. Eliminate clouds and reduce rain

It is a process of "increasing rain" rather than "reducing rain". This requires the use of a substance called silver iodide, which is broadcast by plane. This substance can produce a large number of ice crystals in the clouds, which grow into water droplets, form rainfall and disperse the clouds. Simply put, let the rain end early.

3, artificial defogging

It is not only a major event, but also very important to eliminate fog artificially in order to ensure the visibility of the airport runway. There are two ways to eliminate fog: cold fog and warm fog. The method of eliminating cold fog is similar to eliminating clouds and reducing rain. Silver iodide, dry ice, propane and other substances are used to condense fog (water vapor), stop "wandering" in the air, and settle down. There is a simple way to eliminate warm fog: burn fuel on the ground and evaporate the fog in the air. However, this method has higher cost and smaller application scope. Or spray a hygroscopic agent (such as calcium chloride) in the fog to make the fog become large water droplets and settle to the ground. There is a third method: using the propeller of an airplane or helicopter to stir or the engine to make the fog warm and settle.

4. Artificial hail suppression

If the weather is worse, it may hail, and the way we use it will be very "violent" You are not mistaken, this time with a rocket launcher! After the rocket was launched into the air, it exploded in the air, crushing and destroying the heavy hail above, thus achieving the purpose of hail suppression.