Although they were a little surprised and a little worried about this star mathematician with a frightening reputation, Wan Baoshan and Mao Hongen quickly calmed down.
The phenomenon of "dry rain" is a category of meteorology. It is at most related to physics, but has little to do with mathematics. No matter how high your mathematics level is, Qin Ke, there is no way you can outperform dozens of people in such a professional field.
Experts with years of experience.
So Wan Baoshan nodded gracefully and said, "Is this Professor Qin Ke? If you have any questions, Professor Qin, please ask and we will answer your questions."
Qin Ke did not ask the question immediately, but said to the teacher Jiang Weixian next to him: "Teacher Jiang, my question will involve the conclusions we have drawn, is that okay?"
As he spoke, he picked up a pen and wrote two words in his notebook - "Rain and Wind" and "Fire Rain".
When Jiang Wei first saw these two words, his eyes showed surprise, and then he nodded happily: "Okay."
Qin Ke then raised his head: "Professor Wan, please switch the PPT back to page 19."
Wanbaoshan still switched to the PPT. This was the meteorological data analysis page when the "dry rain" phenomenon occurred. He read it carefully twice and found no problems. He couldn't help but glanced at Qin Ke: "I dare to ask Professor Qin, this page
Is there any problem? I think the data curve we drew on this page is fine. I believe that a great mathematician like you will not be able to understand such a simple data chart, right?"
Qin Ke smiled lightly, motioned to the weather station staff here to share his laptop screen, and then opened the raw temperature and humidity data when the two "dry rain" phenomena occurred.
Qin Ke circled a few lines of data with the mouse and asked: "Professor Wan, did you ignore these lines of data in the data analysis on page 19? They are the highest temperature and lowest humidity values.
And the comparison of these values ​​when the two 'dry rain' phenomena occurred."
Wanbaoshan immediately calmed down after seeing it clearly.
He couldn't help but chuckle and said: "Professor Qin really knows how to joke. Let alone us writing such a report, even if we are writing a paper, the highest and lowest values ​​that deviate the most from the standard value will be removed and not considered. This
A few lines of data are obviously over-limit data collected by monitoring equipment, and are of no value for discussion. I believe that a great mathematician like you who is used to writing papers will not even know such a simple rule, right?"
After talking about it, most of his fear of Qin Ke disappeared. Although his tone was still polite, his eyes showed that "you are so picky about climatology and meteorology, but you dare to question me."
of teasing.
Even Mao Hong'en, who was standing next to him, snorted softly, thinking that when it comes to mathematics, Wan Baoshan and I combined can't beat you, but when it comes to climatology and meteorology, you are not even qualified to be our graduate student!
The attitudes of the two professors were different. The team members they brought were more surprised. They thought Professor Qin Ke would not ask such low-level questions, right?
Only Jiang Weixian in the audience could not hide the admiration in his eyes, while Ning Qingyun fell into deep thought while looking at these lines of data, then his eyes lit up and he quickly rummaged through the information.
Qin Ke turned a blind eye to the strange atmosphere around him. He remained calm and continued: "From a conventional meteorological analysis, there is nothing wrong with Professor Wan's approach, but this time we are studying extreme and abnormal weather phenomena.
Moreover, this is a rare extreme abnormal weather that has never appeared in the Taklimakan Desert. Every piece of data should not be ignored. I believe that with the accuracy that current meteorological monitoring equipment can achieve, there is no so-called over-limit data, or so-called
I believe that the existence of 'miscellaneous numbers' is reasonable and must have its meaning."
After listening to Qin Ke's words, the surrounding area gradually became quiet, and more and more people fell into deep thought.
"And... I have a basis for saying this. These few lines of data ignored by Professor Wan and Professor Mao have a significant relationship with the omens represented by these two extreme and abnormal weather phenomena." Qin Ke moved the mouse and moved the cursor.
Switch to colored pen mode and circle some key data again.
"Please compare the numerical changes in these lines of what Professor Wan called 'meaningless data' when the 'dry rain' phenomenon occurred twice. Did you find a very important key information? The maximum temperature value for the first time was
155 degrees Celsius, and the maximum temperature for the second time has reached 230 degrees Celsius. The humidity is just the opposite. The lowest relative humidity recorded for the first time was 28%, and the second time it became 21%; and these air pressures
The difference value also shows that when the 'dry rain' phenomenon occurred for the second time, the air pressure difference expanded by 50%! The maximum wind speed also increased by 27%!"
Wan Baoshan and Mao Hongen looked a little unnatural. Wan Baoshan opened his mouth and was about to speak when Qin Ke interrupted directly: "Maybe Professor Wan still wants to be tough and insists that these are 'meaningless data', okay.
Next, let's look at these 'dry rain' data that happened in the Sahara Desert."
Qin Ke directly used lip language to let Shimmer open an organized chart, and then circled the data in a certain area.
"In the past hundred years, there have been a total of seven recorded 'dry rain' phenomena in the Sahara Desert. The numerical trends of two of them were similar to our two 'dry rain' phenomena, and the maximum temperature also increased greatly.
, the minimum relative humidity has become lower, and at the same time, the air pressure difference has shown an expanding trend, and the wind speed has also increased significantly!"
Qin Ke raised his head, stared at Wanbaoshan and Professor Mao Hongen at the other end of the video, and said word by word: "Three days after those two special 'dry rains', the largest 'rain steaming wind' sandstorm appeared in the Sahara Desert in history.
, directly turning several cities around the desert into "sand cities." This is not the most terrifying thing. The most terrifying thing is that the "fire rain" that follows, and the "sand-water mixture" of nearly 2,000 degrees Celsius rises with the atmosphere.
The circulation traveled more than two hundred kilometers before falling, directly burning hundreds of kilometers of forests and cities into white ground!"
This chapter is not finished yet, please click on the next page to continue reading the exciting content! Everyone present was shocked.
As professionals in climate and meteorology, they are naturally familiar with the so-called "rain, steam, wind" and "fire rain".
Rain evaporation wind refers to the updrafts generated by large-scale high temperatures in desert areas, causing rainwater to completely evaporate in mid-air, so it is called "rain evaporation wind". It seems to be very similar to "dry rain", but the difference is that
Wind force and wind speed.
The dry and strong airflow rises rapidly, not only bringing the sand and dust on the surface of the desert to high altitudes, but also causing a large-scale negative pressure difference, forming a vacuum near the ground, which in turn will intensify the air circulation, enough to produce a tornado-like effect.
The powerful wind created a huge sandstorm that swept everything!
Such a large-scale sandstorm is undoubtedly catastrophic. Millions of sand grains measured in tons are carried high into the sky by strong winds, which can cover the sky as dark as night. Once it encounters a city around the desert, it can easily destroy the city.
Buried into a "sand city"!
"Fire rain" is even more terrifying, because with the dust in the air, the evaporated high-temperature water vapor has the conditions to solidify. Once it encounters large-scale convective weather, it can turn into "raindrops" and fall.
But even if it falls from high altitude, these "sand-water mixture" condensed by high-temperature water vapor still maintains a terrifying high temperature of more than 2000 degrees Celsius. If it falls in forests and cities that are already dry in summer, it is almost inevitable to cause fires.
.
If these two extremely abnormal weather phenomena "dry rain" that occurred in the Taklimakan Desert really indicate that "rain, steam, wind" or even "fire rain" may appear in the future, the consequences will be simply unimaginable!
Wan Baoshan and Mao Hongen were also covered in cold sweat on their foreheads. If the weather station reported according to their original conclusion, it would have led to the negligence of the higher-level meteorological department. What if "rain, steam, wind" or even "fire rain" really appeared?
The two of them are the biggest sinners of immeasurable personal and property losses! Not only will their future be ruined, they will also be charged with dereliction of duty!
Wan Baoshan's face turned pale and he was speechless. Mao Hongen took a deep breath to calm down and asked: "Professor Qin, this is just your guess. Can you judge that such a rare occurrence in the world will happen based on just a little bit of data similarity?"
An extreme weather disaster?”
“Of course it’s not just the numbers!”
Qin Ke opened several data files and a painting software: "Everything with gas flow is inseparable from fluid mechanics. When it comes to the study of climate and meteorology, I may not be very in-depth, but when it comes to fluid mechanics, I learned from Teacher Jiang.
, the level is barely passable.”
As he spoke, he directly used the mouse as a pen: "I also inquired about the atmospheric circulation data of the Taklimakan Desert in the past six months, as well as the surrounding air pressure changes, circulation directions, etc., and then combined the N-S equation of fluid mechanics, Euler method and Lagrang
Japanese method and simple deduction through mathematical modeling."
Lines of complex mathematical calculations using N-S equations are unfolded on the drawing software.
"Look, by analytically deriving the momentum equation, you can get the pressure Poisson equation. I used the staggered grid projection method here to discretize the N-S equation and get the discretized pressure Poisson equation. Next, I used SOR
Technology to solve..."
At the beginning, everyone could barely understand it. After a minute, except for Jiang Weixian and a few other professionals who were also very good at mathematics, the rest of them looked confused, as if they were reading a book from heaven.
In the end, even Jiang Weixian smiled bitterly and rubbed his forehead, leaving only Ning Qingyun who could still look at the big screen with clear eyes, compare the information in his hand, and keep up with Qin Ke's rhythm.
"At this last step, I came up with a very rough probability, 5%. This is the possibility of 'Rain, Steam and Wind' happening, while the probability of 'Fire Rain' happening is about 0.1%. Of course, because of limited time,
The data in my hand is not rich enough, and the mathematical model I have established is relatively rough, so the probabilities obtained are not accurate. However, I can draw a conclusion that the occurrence of these two "dry rain" phenomena indicates that it will happen in the near future.
The possibility of these two extreme natural disasters, 'Rain, Steam, Wind' and 'Fire Rain', will never be zero!"
Qin Ke let go of the mouse and stared at Wan Baoshan and Mao Hongen: "This is the question I asked. I wonder how the two professors plan to give advice?"
Please give me some advice!
I can’t even understand what you wrote!
Just when Wan Baoshan and Mao Hongen's faces turned from white to red, Qin Ke showed a calm smile:
"Of course, if the two professors still insist that your original conclusion is correct, that is, 'these two dry rains are an occasional phenomenon under specific conditions. It only indicates that this year's desert hinterland will have a larger day-night temperature difference and more severe
Severe drought and lack of rain, that's all. Please provide more sufficient theory and data to support it, and effectively refute my deduction. After all, all science and technology must be rigorous, this is true for mathematics, physics, and even more so for meteorology.
That’s true, right?”
The faces of the two professors finally turned the color of pig liver. Their conclusion was just a hasty analysis of data and decades of experience. How could they be like Qin Ke, a perverted guy who not only dealt with the situation in such a short period of time?
Domestic and foreign "dry rain" data have been carefully analyzed, and mathematical methods combined with the N-S equation have been used to draw impeccable and rigorous conclusions?
They wanted to argue, but when they opened their mouths, no words came out.
In the silence, applause soon burst out and became more and more enthusiastic. Jiang Weixian's team in the conference room here, as well as the weather station director Xia Yongguan and other staff were all shocked by Qin Ke's momentum and performance.
They couldn't help but applaud, and even the researchers in Wan Baoshan and Mao Hongen's team quietly followed in the applause.
Especially Deng Zhaoliang, Ding Yuefeng, Xu Jiaxing and others, their palms were almost smashed.
Wonderful, so wonderful!
This chapter is not over yet, please click on the next page to continue reading! More importantly, you feel proud and happy!
It was so frustrating to be suppressed by Professor Wan Baoshan and Professor Mao Hongen before, but now I feel so relieved!
Deng Zhaoliang quietly said to Xu Jiaxing, who was sitting next to him: "He is worthy of being called the 'God of Qin'. He is so amazing. I haven't seen such a powerful and refreshing counterattack in a long time!"
Xu Jiaxing also nodded excitedly.
They and the team both prospered and suffered losses. Now that they see that their own side has completely gained the upper hand, how can they not feel proud or excited?
When the applause stopped, Jiang Weixian pretended to be displeased and asked Qin Ke to sit down, and then said to Wan Baoshan and Mao Hongen on the other side of the video: "Professor Wan, Professor Mao, Qin Ke can't speak, he speaks too bluntly. I'll look back.
Educate him well and hope you two won’t take offense.”
Qin Ke, who was sitting next to him, almost laughed out loud. Jiang was still very cool. On the surface, Teacher Jiang was apologizing, but in fact, he was supporting his point of view. His words "You're too blunt" just made the other person's face laugh.
There was a snapping sound.
Wan Baoshan forced out a stiff smile: "Academic exchanges are all about seeking practical results. Academician Jiang, you are like a master giving birth to a great disciple. Professor Qin will probably be able to surpass his master soon."
This guy actually wanted to sow discord, but Jiang Weixian smiled and said calmly: "Professor Wan, don't praise him yet. This kid gets proud when he praises him. But as long as he can calm down and study physics hard, he will surpass me sooner or later. By then,
Even if I die, I can still close my eyes with peace of mind."
His words were sincere and direct, and everyone could hear his high hopes for Qin Ke and his unreserved cultivation.
Qin Ke's eyes were slightly moist.
Whether it was Jiang Weixian in front of him, or the previous academician Wang Heng, teacher Shi Cunyuan, teacher Deng Hongguo, teacher Lin Haibo, and teacher Zheng Jianzhou, all the teachers he met along the way were such excellent teachers with good character and knowledge. Qin Ke was extremely lucky, and also
Extremely grateful.
This tripartite meeting ended quickly. Wan Baoshan and Mao Hongen finally lowered their heads and said that they would continue to jointly study the data of these two "dry rain" phenomena in depth and exchange this again later. Then they disconnected in embarrassment.
Chapter completed!