When Lucifer was bored that morning, he rubbed his chin and thought. "Speaking of which, this is quite magical. Where did the storm curse I sent go? Why is there no sign of anyone alive or dead … Ah, no, I searched all the people who might be Hong Dali's enemies in the entire Heavenly State, but I didn't find anyone who was hit by the storm. Could it be that this curse is ineffective? Or did my curse lose its effect? It doesn't seem like it … Could it be that something strange happened on Hong Dali's side? En, that's possible. This Hong Dali, speaking of which, he's really amazing … "
…
"Achoo." Hong Dali, who was on the deck of Big Fish, sneezed violently and touched his nose. "Who's talking about me?" He sneezed again. "Achoo, one hundred years old! Damn, the weather is quite warm, why do I keep sneezing … "
…
The butterfly effect, also known as the topological chain reaction, referred to the long-term chain reaction of the entire system caused by a small change in the initial conditions of a dynamic system. This was a chaotic phenomenon. The development of anything had a fixed number and a variable. In the process of development, the trajectory of the development of things could be followed. At the same time, there were unpredictable "variables". A small change could affect the development of things, indicating that the development of things was complicated.
And this was the magic of nature …
After Hong Dali sneezed twice, he went to the island of Big Fish to sleep with Li Nianwei (Don't get the wrong idea, I'm looking for her thighs …). But his two sneezes were not ordinary …
At this time, Big Fish was on the route to the Bermuda Triangle. This was already in the position of the tropical ocean. On the surface of the sea, there were often many weak tropical vortexes. In professional terms, these were the "embryos" of typhoons, because typhoons always grew from these weak tropical vortexes.
Actually, this was nothing, but the problem was that Hong Dali sneezed twice …
On the surface of the sea around his Big Fish, it was wide enough, and it was a tropical ocean. The surface temperature of the sea was higher than 26.5 degrees Celsius, and in the layer of sea water 60 meters deep, the water temperature exceeded this value. The vast ocean was a necessary natural environment for the formation of typhoons. Because of the friction between the air molecules inside the typhoon, it consumed an average of 3100-4000 cal/cm ^ 2 of energy every day. This huge amount of energy could only be supplied by the latent heat released by the vast tropical ocean. In addition, the strong winds around a tropical cyclone would cause the seawater near the center to churn. In the center of a typhoon, where the pressure was very low, it could even cause the surface of the ocean to surge up and then spread out in all directions, so the seawater churned from the center of the typhoon to the surroundings.
Originally, there was only a possibility that a typhoon would form in such an environment, not a certainty.
Before a typhoon formed, it needed an initial disturbance, just like a spring oscillator. If it was not disturbed, it would not vibrate.
Hong Dali's two sneezes were the initial disturbances!
First, there was a very weak tropical vortex around Big Fish.
We all know that the operation of any machine consumes energy, which requires a source of energy. The typhoon was also a "heat engine". It rotated at such a huge scale and speed, which consumed a lot of energy, so it needed a source of energy.
The air blown out by Hong Dali's two sneezes fused with the very weak tropical vortex, causing it to become slightly stronger. It also started to move very slowly.
In this tropical vortex, the air pressure itself was lower than the surroundings. After Hong Dali's two sneezes merged, the vortex moved, and the air pressure gradually became lower. The surrounding air carried a large amount of water vapor toward the center of the vortex and produced an upward movement in the vortex area. The humid air rose, and the water vapor condensed, releasing a huge amount of latent heat of condensation, which began to drive the typhoon.
When Big Fish 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.
In the vast sea, a diameter of more than 20 centimeters was as small as a hair on the top of a person's head. But we all know that things were developing — it just so happened that this was a tropical ocean, and the water temperature was very, very suitable. The hot and humid tropical ocean supplied water vapor, and the air rose strongly, producing the process of condensing and releasing latent heat. The typhoon had already begun to form.
Just like that, this small vortex was not enough to cause any harm. It was very likely that it would disappear from the sea forever if it encountered a little bit of interference.
But the real problem was that at this time, coincidentally, a gust of sea breeze blew by, which caused an even more intense reaction — the sea breeze merged into the vortex, and the low temperature brought by the sea breeze increased the temperature difference in the vortex, so this small tropical vortex became more and more spectacular — from about 20 centimeters in diameter, it quickly increased to about one meter.
At this time, the small tropical vortex was moving faster and faster. About an hour later, it happened to move to a latitude that was very suitable for typhoons to form. The formation of a typhoon required a large enough force from the Earth's rotation. As the force from the Earth's rotation at the equator was zero, it gradually increased towards the poles. Therefore, the typhoon's location was about five latitudes away from the equator. This tropical vortex happened to be located above this latitude.
Due to the rotation of the Earth, there was a force that changed the direction of the air flow, called the "Earth rotation bias force." When the tropical vortex moved here, the effect of the Earth rotation made it difficult for the surrounding air to flow directly into the low pressure. Instead, it rotated counterclockwise along the center of the low pressure.
At this time, this small tropical vortex grew a little bigger, reaching a diameter of more than two meters.
And at this time, it still looked so small, like a small seed that was slowly germinating and growing.
In this small tropical vortex, just above the weak low pressure, the difference in wind speed between the high and low gradually decreased. Soon, the upper and lower air columns acted in unison, and the heat in the upper air quickly accumulated, thus warming.
With the flow of the environmental airflow above the friction layer along the isobaric line, the warming effect at the upper level was further completed. This small tropical vortex grew rapidly and became larger, and soon its diameter rose to three meters, four meters, five meters …
If it was only on this scale, it was obvious that it was far from enough.
But the problem was that the sea surface here had formed a strong cumulonimbus cloud after a day of sunlight.
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 surface rose, and the surrounding cold air continued to replenish it, again meeting the heat and rising. This cycle soon made the air above hot, the air below cold, and the water vapor in the hot air above evaporated, expanding the range of the cloud belt.
At this time, the small tropical cyclone had a diameter of nearly 15 meters. The expansion of the cloud belt caused the cold and hot movement to become more intense. Then, the expanding cloud cluster was affected by the gravitational force of the rotation and began to rotate rapidly.
The centrifugal force generated by the rotating air flung the air outward. The air in the center became thinner and thinner, and the air pressure continued to decrease. Finally, this small tropical vortex completely germinated, grew, and became more and more mature. Finally, it reached a diameter of nearly 30 meters and entered the initial stage of a typhoon.
…
Merika Weather Bureau.
The staff yawned in boredom and were all discussing the various events that happened in the world in the past two days.
"Hey, work, have you seen the news these two days? Our country's three aircraft carrier strike groups are out to sea for military exercises. This is a rare large-scale action. "A Weather Bureau staff member glanced at the screen in boredom, then said to his colleague beside him.
"Of course, how can we not know such a big thing." The colleague smiled and said, "It's a miracle that they made such a big scene for a prodigal. To be honest, I feel that they are making a mountain out of a molehill. "
"That's true. No matter what, he's just a prodigal. This is too much." The first person shook his head. "These people have nothing to do and are wasting military funds for fun. They really have too much money and nowhere to spend it. Tens of millions of US dollars are gone every time an aircraft carrier goes out to sea. "
"Don't worry about the matters of the higher-ups." The colleague sat on the sofa and looked at the satellite cloud image again. Suddenly, he said in surprise, "Quick, look, what is this?"
"Hm? What's wrong? " The first person hurried over and quickly smiled. "It's just a small typhoon. Why are you so flustered?"
"Hehe, I'm a little oversensitive." On the satellite cloud image, a typhoon with a diameter of less than 30 meters was moving in the direction of Merika. However, to the people from the Weather Bureau, such a small typhoon was naturally not something they needed to worry about. Under normal circumstances, such a small typhoon would disappear before it made landfall.
"Okay, okay, don't do useless things." At this moment, the Merika Weather Bureau Chief walked in. "Hurry up and get to work!"
…
The people from the Merika Weather Bureau did not pay any attention to this small tropical vortex. After all, it was too small, so small that they could not even be bothered to mention it.
But this small tropical vortex was still working hard to move and grow …
Because the pressure at the center of the tropical low was lower than the outside, the surrounding air surged toward the tropical low. As it heated up, it supplied more energy to the tropical low, exceeding the output energy. At this time, the air in the tropical low rotated even more violently. The maximum wind in the center increased, and the central pressure decreased further.
Finally, the maximum wind near the center reached about 60 kilometers per hour. At this time, this small tropical vortex finally successfully upgraded to a level. From the tropical depression that was like a seed at the beginning, it was upgraded to the weakest level of tropical cyclone, a small typhoon.
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