Chapter 649 Sneezing Vigorously

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When Lucifer was bored this morning, he stroked his chin and thought: "By the way, this thing is really amazing. Where did the curse of the storm you said I sent go? How come no one is alive, no one is dead, no corpse...ah No, I searched all the people who might be hostile to Hong Dali in the whole kingdom of heaven, but I didn't find anyone who was hit by the storm. Could it be that this curse is invalid? Or that my curse power has lost its effect? ​​It doesn't seem like it. ...Could it be that something strange happened to Hong Dali? Well, it's possible. This Hong Dali is really amazing..."

...

"Ah-choo," Hong Dali on the deck of the Big Fish sneezed violently and touched his nose, "Who is talking about me?" He said and sneezed again: "A-choo, a hundred years old His grandma, the weather is quite warm, why does he keep sneezing..."

...

Butterfly effect, also known as topological chain reaction, means that in a dynamical system, small changes in the initial conditions can drive the long-term huge chain reaction of the entire system. This is a chaotic phenomenon. There are fixed numbers and variables in the development of any thing. The development track of things in the development process has rules to follow, and there are also unpredictable "variables". A small change can affect the development of things, which shows that the development of things is complicated.

And the magic of nature lies in this...

After Hong Dali finished his two sneezes, he went into the ship island of the Big Fish to sleep with Li Nianwei (don't think wrong, he was looking for his thigh...), but his two sneezes were not ordinary ...

At this time, the Big Fish was on its way to the Bermuda Triangle, which was already in the tropical ocean. On the sea surface, there are often many weak tropical eddies. In professional terms, this is the "embryo" of a typhoon. Because typhoons always develop and grow from this weak tropical vortex.

In fact, it was nothing. But the problem is, Hong Dali sneezed twice...

Just out in the sea around his Big Fish. It is wide enough here, and it is a tropical ocean. The sea surface temperature is higher than that, and it is in a layer of sea water at a depth of 60 meters. The water temperature exceeds this value. The vast ocean is the necessary natural environment for the formation of typhoons, because the friction between air molecules inside the typhoon consumes an average of 3100-4000 cal/cm**2 of energy per day, this huge energy can only be released by the vast tropical ocean Latent heat is only possible to supply. In addition, the strong winds swirling around the tropical cyclone can cause the sea water near the center to churn, and in the center of the typhoon where the air pressure drops very low, it can even cause the ocean surface to swell upwards. Then it spread out to the surroundings, so the sea water churned from the center of the typhoon to the surroundings.

And originally,

Such an environment is only likely to form a typhoon, not necessarily a typhoon.

before the typhoon formed. It needs an initial disturbance, just like a spring vibrator, it will not vibrate without a disturbance.

And Hong Dali's two sneezes were precisely this initial disturbance!

First, there is a very weak tropical vortex around the Big Fish.

We know that the operation of any machine consumes energy, which requires an energy source. A typhoon is also a "heat engine". It rotates there with such a huge scale and speed, it consumes a lot of energy, so it needs an energy source.

The air blown out by Hong Dali's two sneezes merged into the very weak tropical vortex, making the very weak tropical vortex a little bit stronger, and began to move very, very slowly.

In this tropical vortex, the air pressure itself is lower than its surroundings. After Hong Dali's two sneezes merged into it, the vortex moved, and the air pressure gradually became lower. An upward movement is generated in the vortex area; the moist air rises, the water vapor condenses, and releases a huge latent heat of condensation, which starts to make the big machine of the typhoon work.

When the Big Yu aircraft carrier advanced more than ten nautical miles, the tropical vortex affected by Hong Dali's two sneezes had initially formed a certain scale - about 20 centimeters in diameter.

As for the diameter of more than 20 centimeters, in the vast sea, it is actually smaller than the hair on the top of a person's head, but we know that things are developing-it just so happens that this is a tropical ocean, The water temperature is very, very suitable. The hot and humid tropical ocean surface supplies water vapor, and the air rises strongly, causing condensation to release latent heat. The typhoon has initially formed.

But just like this, this small vortex is not enough to cause any harm. It is very likely that it will disappear on the sea forever if it encounters the slightest disturbance.

But the real problem is that at this time, coincidentally, a gust of sea breeze blew past, which caused a more violent reaction—the sea breeze merged into the vortex, and the low temperature brought by the sea breeze increased even more. Due to the temperature difference in the vortex, this small tropical vortex became more and more spectacular—from a diameter of about 20 centimeters, it quickly increased to about one meter.

At this time, this small tropical vortex moved faster and faster. About an hour later, it just happened to move to a latitude that is very suitable for typhoons. The formation of typhoons requires The deflection force of the earth's rotation is large enough, because the deflection force of the earth's rotation at the equator is zero, and gradually increases towards the poles, so the place where the typhoon occurs is about 5 latitudes away from the equator. This tropical vortex is just above this latitude.

Due to the rotation of the earth, a force that changes the direction of air flow is produced, which is called "the deflection force of the earth's rotation". When the tropical vortex moved here, the effect of the earth's rotation made it difficult for the surrounding air to flow directly into the low pressure, but rotated counterclockwise along the center of the low pressure.

At this time, this small tropical cyclone grew a little bit bigger, reaching a diameter of more than two meters.

At this time, it still looks so small, like a small seed that is slowly sprouting and growing up.

In this small tropical vortex, just above the weak low pressure, the difference in wind direction and speed between the upper and lower altitudes gradually decreases, and soon the upper and lower air columns move in unison, and the heat in the upper air quickly accumulates, thereby warming up.

As the ambient air flow above the friction layer flows along the isobar, the warming effect of the upper layer is further completed. This small tropical vortex grows rapidly and becomes larger, and soon the diameter increases to three meters, four meters, five meters Meter……

If it's just this scale, obviously, it's not enough.

But the problem is that the sea surface here has been irradiated for a day, forming a strong cumulonimbus cloud.

The small tropical cyclone passed by, and because of the wind speed, it brought a lot of cold air. At this time, the hot air in these cumulonimbus clouds on the sea rises, and the surrounding colder air continuously replenishes, and rises again when it is heated. This cycle will soon make the upper air hot, the lower air cold, and the upper heat. Evaporation of water vapor in the air expands the range of cloud bands.

At this time, this small tropical cyclone already had a diameter of nearly fifteen meters. The expansion of the cloud belt made this cold and hot movement more intense, and then the ever-expanding cloud cluster was affected by the deflection force of the earth, and began to gradually Spin it up quickly.

The centrifugal force generated by the rotating air throws the air outwards, the air in the center becomes thinner and thinner, and the air pressure keeps decreasing. Finally, this small tropical vortex sprouts completely, grows up, and becomes more and more mature. , reached a diameter of nearly 30 meters, and thus entered the initial stage of the typhoon.

...

US Weather Service.

The staff yawned boredly, talking about various events that happened in the world in the past two days.

"Hey, job, have you read the news of the past two days? Our country's three aircraft carrier formations have performed a naval exercise. This is a rare large-scale operation." A member of the Meteorological Bureau glanced at the screen boredly, and then rushed to the side colleagues said.

"Of course, how could you not know about such a big thing." The colleague smiled and said, "It's a miracle that such a big fight was made for a prodigal son. To be honest, I feel like making a big deal out of a molehill."

"That's right, no matter what, you're just a prodigal son. It's really too much to do this." The previous person shook his head: "These people have nothing to do, and they are wasting military expenditures. They really have so much money that they have no place to spend it. Aircraft carrier Going to sea once, tens of millions of dollars will be gone.”

"Don't worry about high-level affairs." The colleague sat on the sofa, looked at the satellite cloud image again, and suddenly said in surprise: "Look, what is this?"

"En? What's the matter?" The first person hurried over, and quickly smiled: "It's just a small typhoon. Seeing you are so panicked."

"Hehe, I'm a little nervous." On the satellite cloud image, a typhoon with a diameter of less than 30 meters was moving towards the United States, but for everyone in the Meteorological Bureau, such a small typhoon naturally didn't need them to worry about. Under normal circumstances, such a small typhoon has disappeared before it lands.

"Okay, okay, don't do useless things," at this time the director of the US Weather Bureau walked in: "Hurry up and work!"

...

Everyone in the U.S. Weather Bureau didn't pay any attention to this small tropical vortex. After all, it was so small that no one even bothered to mention it.

But this small tropical vortex is still trying to move and grow...

Because the air pressure in the center of the tropical depression is lower than that of the outside world, the surrounding air rushes towards the tropical depression and rises when heated, supplying more energy to the tropical depression than the output energy. At this time, the air in the tropical depression rotates more strongly, and the maximum wind force in the center rises. , the central air pressure further decreases.

Finally, the maximum wind force near the center reached about 60 kilometers per hour. At this time, this small tropical vortex finally successfully upgraded to a level. From the seed-like tropical depression at the beginning, it was upgraded to a tropical cyclone intensity. A small typhoon of the weakest level. ()