How important is weather forecasting?

Accurate and reliable weather forecasts not only save lives, but also help make economic decisions in aviation, energy and utilities, transportation, and other industries.

It is no exaggeration to say that nearly one-third of a country's GDP is directly or indirectly affected by weather.

So Kou Xun hurriedly reported the results of the first comparison operation.

The results are accurate.

The calculation time: 17 seconds.

The project team said that they were very dissatisfied and were optimizing the algorithm.

The goal is to stabilize the calculation time within 10 seconds at a resolution of 1 km.

Kou Xun felt like he was going crazy.

And the boss of the meteorological department also feels like crazy.

The madness of joy.

Without contrast, there is no intuitive feeling.

This is the first example of quantum computing applied in a specific field, and the power is terrifying.

Unlike the math problem in Gu Song's memory, which is claimed to take 200 seconds to calculate supercomputing and 20,000 years, this 100-qubit prototype calculates a series of real problems transformed into problems.

The same mathematical calculations, at different levels.

Now this prototype has exploded not only in the number of qubits, but also in specific applications.

In fact, this calculation has achieved such results, and the project can really be delivered.

Next, it depends on how the state arranges experts in various fields to learn quantum computing, and then optimize algorithms and compile calculation programs according to their own needs.

But since the beginning, I have to do a better job of weather forecasting.

Because of the cold wave that is coming, I could have been more prepared.

Since the end of the month, the cold wave that has swept most of the country has finally caused direct economic losses to the level of 100 billion.

During this period, some people were unfortunately killed.

It was a major cold wave with several rains, snow, and freezing weather, and at that time, such an extreme situation could not have been predicted earlier.

Now, it's different.

In half a month, the algorithm was optimized again and again, Zhang Qingping was very involved and excited, and the artificial intelligence program modeled by Lin Yaodong also contributed some improvements.

In this process, not only the comparison of past data calculation results is extremely accurate. The next-day, three-day, seventh-day, and fifteen-day forecasts made every day have also greatly improved and guaranteed the accuracy in the comparison of real meteorological observation data in the following days.

Kou Xun is finally confirmed, quantum computers are terrifying!

On January 20, when the quantum computer calculated the latest data in 8.73 seconds with a resolution of 1 kilometer, Kou Xun looked at the results and his expression changed.

Guo Yue asked curiously, "What's wrong?"

Kou Xun didn't answer, and after a while, he said, "Wait a minute, I'll rush the latest observations." Wait for a few more time periods of data, and count a few more times. ”

Gu Song knew what he had seen and was happy to see his prudence.

The meteorological department's meteorological observation stations scattered throughout the country have been operating at full capacity because of the attention attracted by Kou Xun's report, and the latest meteorological data is collected at a frequency of two hours.

Normally, meteorological stations publish data at least two or three times a day.

Globally, there are also nearly 3,000 terrestrial meteorological observation stations, which exchange meteorological telegrams four times a day at 0:00, 6:00, 12:00 and 18:00.

Because Kou Xun said it very solemnly, and the big leaders of the meteorological department were shocked and trusted by quantum computing, they also mobilized their forces to provide more data for Kou Xun.

Because of this temporary mission, many meteorological observation station staff in remote areas have complained a little.

And the people in the quantum computing project team were also busy until night for this matter.

The third time the data was summarized, it was already more than 9 o'clock in the evening.

The data is slow, but the calculation is fast.

In the course of this day, the data was calculated four times.

Kou Xun compared the results of the four data changes, and finally affirmed his judgment.

He said solemnly: "According to the current results, if there is no mistake, then in 10 days, a great cold wave will sweep through most of the country!"

Ni Guangbei hurriedly asked, "How serious is it?"

"It's serious! This may be the most serious in more than 50 years! No, I have to go to the leader and report to the leader, and I have to prepare early!"

Kou Xun hurried away, leaving a room of people looking at each other.

Quantum computers are only responsible for the calculations, and only meteorologists can understand what they represent.

Ni Guangbei sighed: "If it is really right, his judgment is accurate, but he has made some contributions in time." ”

Zhang Qingping also nodded: "Since we have encountered such an important matter, we have to work hard again in the past few days to see if we can continue to optimize and improve the accuracy of the calculation." ”

Gu Song wiped his face: "Let's get here first today, it's not too early, let's go back and have a good rest first." I'll hear back tomorrow how it turns out. ”

……

At the National Weather Service, a high-profile expert group meeting is taking place.

If you only look at the calculation data you have taken, everyone is of course consistent with Kou Xun's judgment.

But the question is, is the data real? Is it accurate?

After all, this counts the data from 10 days to 15 days.

"This is not a trivial matter, if we submit this result, it will involve a large number of high-intensity personnel work arrangements in various systems during the last period before the Chinese New Year. Not to mention material preparations. What if it turns out to be a miscalculation?"

At present, only Kou Xun and the big leaders of the Meteorological Bureau know that this is the credit of the quantum computer.

Others don't know, thinking that it is the result of the supercomputer they have been using, so they have a lot of reservations.

Kou Xun didn't say much, just looked at the leader.

The big leader said: "Let's just think these numerical forecasts are fine. Then, starting from this, we now need a relatively comprehensive forecast material. ”

He paused, and then emphasized: "Be detailed!"

The big leader has spoken, and the topic has entered the next stage.

Instead of questioning the accuracy of the data, it is purely interpreting weather trends.

Everyone has a mouth, I have a mouth, and when they talk about the weather changes at that time, their expressions will become solemn.

After all, it is a natural disaster of this magnitude.

Therefore, even if it is just a miscalculation, it is necessary to make more preparations.

Because if it is not a miscalculation, and then because the meteorological department does not give some warnings in advance, the huge losses at that time will also make everyone feel that they have not fulfilled their duties.

Besides, there will be no accusations when the time comes?

……

Early in the morning, Bao Jiaqi received a report personally sent by the senior leader of the Meteorological Bureau.

"The biggest cold wave in more than 50 years?" Sitting in the heated office, Bao Jiaqi's spirit suddenly lifted.

The big leader nodded solemnly: "The quantum computer has been tested for more than half a month, and the accuracy of the data is getting higher and higher. The data calculated yesterday and the data for the 24 hours are roughly in agreement with the latest observations. The experts in the bureau have unanimously judged these data! In the face of such a natural disaster, we must make preparations in advance. ”

Bao Jiaqi pondered for a while, and asked the secretary to dial Gu Song's phone.

He didn't ask anything else, just asked Gu Song's opinion on the calculation results.

Gu Song told him with great certainty: "Absolutely no problem. ”

Bao Jiaqi hung up the phone, and then said, "I know, you should issue an early warning." I'll arrange the rest. ”

On January 21, for the first time in history, the National Weather Service issued a cold wave warning after 10 days, and the level was raised to red.

Public opinion is in an uproar!

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