Crossing the Sino-Mongolian border through the tunnel, Lin Han dragged the huge clouds in the sky, drove back to northern Shaanxi, and then walked around Yulin.

While wandering, he began to divide the clouds, so that the huge clouds were distributed in many places in the 20,000 square kilometers of loess in Yulin City, making the original clear sky of this loess show a bit of blue and white staggered scenery.

By about noon, the clouds that Lin Han had "transferred" from the South Gobi Province of Outer Mongolia had already been distributed over the loess as planned.

Counting these collected from Outer Mongolia, the moisture in the sky near the loess of Yulin City doubled almost overnight, and at this time, a wave of rain bombs was fired, which was enough to trigger a rain that was not too big or small.

Lin Handang even called the person in charge of the "Yulin City Weather Modification Office" and said, "Director Sun, you can start implementing artificial rainfall." ”

The Weather Modification Office (AMO) is an organisation led by the Meteorological Department (BMD) that is responsible for the implementation of weather modification. Regarding the arrangements for this rainfall, many of them were formulated by the "Human Shadow Office".

Director Sun of the "Human Shadow Office" didn't seem to react, and was stunned for a moment and said, "Mr. Lin, it's only been a day, has it started to rain?"

Lin Han smiled: "Don't worry, the water vapor is already fine, and it's just the rain bomb that you guys did." ”

Hearing this, Director Sun on the other end of the phone couldn't help but feel a burst of curiosity in his heart.

Increasing water vapor isn't a surprise, and humidifiers are an example. However, it is a bit unbelievable that the water vapor in an area of 20,000 square kilometers can be significantly increased in such a short period of time.

And he was even more curious about where all this water vapor came from. After all, no matter how rebellious the technology is, it can't be created out of nothing.

After thinking about it for a while, Director Sun still didn't dare to ask more, after all, in the extremely authoritative semi-official system of the "Shaanxi Reform Commission", Lin Han is second only to the leader of the committee, and he is just an ordinary member.

What's more, it involves confidential matters, and if you go over and ask so recklessly, most of the time you end up being self-deprecating.

"Mr. Lin, don't worry, we are ready to increase the rain immediately......"

After hanging up the phone, Director Sun immediately arranged for the "Weather Modification Office" to immediately organize manpower to carry out artificial rainfall as planned.

……

Somewhere in the northeast of Yulin City, several cars and pickup trucks were parked on the yellow earth, and a group of people got out of the car and began to busy around the two pickup trucks.

Two soldiers in camouflage uniforms carefully removed several cardboard boxes from the back of the pickup.

When the cardboard box was placed on the ground and opened, it contained a small blue rocket, which looked about the size of a human arm in length and thickness.

This kind of rocket is naturally a "rain bomb" used to carry out artificial rainfall, and each shot costs about 4,000 yuan.

Dry ice and other reagents are launched into the air by rockets to touch the rain clouds, which promotes the rapid condensation and expansion of cloud droplets, and finally forms raindrops to produce rainfall, which is the principle of artificial rainfall.

The two soldiers then brought in the launch rack and fastened it firmly to the back box of the pickup.

This launch frame looks very inconspicuous, as if it were an iron frame. But the price of this thing is much more expensive than rain bombs, less than one or two hundred thousand.

After installing the launcher, the two soldiers began to install the rain-enhancing rockets, stuffing one by one into the launcher.

Several rain-enhancing rockets were loaded onto the launch stand, and the two of them stayed next to the remote control device, waiting for orders.

A few other people gathered together, holding mobile phones and tablets in their hands, staring at the weather map on the display screen and talking about it.

"It's amazing, it's only been a day, how can the rain clouds change so many all at once!" a man wearing black-rimmed glasses couldn't help but marvel as he looked at the weather map.

"I've been through a lot of battles, but this time the operation of the Vientiane Laboratory is really amazing, and I can't figure it out at all. Several others chimed in.

"Strange...... How, exactly, is it done. ”

"Don't talk about these useless things, hurry up and make a decision, where will the rain bomb go?"

Several people discussed for a while, and then reached an agreement, and one of them pointed to the weather map and said, "Let's launch this one, let's see the effect once, and if it is not enough, we will launch another wave." ”

"That's it, contact the Air Force immediately!"

Compared with real rocket missiles, although the power of rain enhancement bombs is not worth mentioning, it is also a great threat to aircraft in the sky.

Therefore, before each artificial rainfall is implemented, it must be approved by the Air Force management to confirm that no aircraft pass by before the launch can be carried out.

Soon, the approval of the Air Force administration was sent, and the group took their places, away from the pickup truck with launchers and rockets.

"Ready!four, three, two, one...... Launch!"

The soldier pressed the remote control device, and then heard a loud "boom", the pickup truck shook violently, and a rain-enhancing rocket sprayed smoke and flames into the sky.

"Boom, boom, boom......"

With several loud bangs, rain-enhancing rockets were launched one after another and rushed into the air, leaving only a few thick clouds of smoke behind them to slowly disperse.

After the rain bomb was fired, the group approached again, looked up at the sky, and showed anticipation.

About ten minutes later, a middle-aged man suddenly frowned, reached out and touched his shiny head, and said with a happy face: "The rain is coming!"

"Wow-"

Soon, as the cold wind blows, the rain falls and melts into the earth, soaking the dry and fragile loess that is ubiquitous here.

In one day, the same scene occurred in many places in the yellow earth of Yulin City, with the successful implementation of artificial rainfall, the 20,000 square kilometers of yellow earth were shrouded in a misty rain.

Somewhere in the center of Yulin loess, Lin Han leaned on his seat, looked at the rain outside the car, and couldn't help but smile on his face.

Soil fertility is there, seeds are there, and rain is there. Now it can be said that everything is ready, only the east wind is owed.

So not long after the rain fell, he let go of the biological authority and let the "green buff" cover the entire loess with a radius of 20,000 square kilometers.

All plants within this range are stimulated, instantly become vibrant, their metabolic rate skyrockets, they frantically suck the nutrients and water in the soil, and grow rapidly.

Among them, especially the freshly sown tree species and grass species, some plants that are already growing rapidly, after being stimulated by biological authority, the metabolic rate immediately surges, and the speed visible to the naked eye is like a budding green.

After a while, large areas of tender green seedlings poured out on the loess soil, swaying in the rain and growing strongly......

By the early morning of the next day, the original vast yellow earth had been draped in a layer of green, and when I looked up, I saw that there was a tender green color everywhere.

……