"The clear sky turbulence is much more terrifying than written descriptions," the flight attendant and passengers were thrown to the ceiling! Famous band firsthand experience, video exposure of bumps | Flight | Passengers

On July 10th, multiple netizens posted that the CA1524 flight from Shanghai to Beijing encountered severe turbulence in the air. Orange and Persimmon Interactive reported earlier:

Among them, the flight attendant passenger was thrown to the ceiling to attract attention, and the video was exposed:

The members of the music band SummerVapor's summer solstice dream were all on this flight, and they recalled: the clear sky was much scarier than written descriptions!

Today, the Orange Persimmon Interactive reporter contacted the person who witnessed the plane incident of Air China.

The band Summer Vapor is from Beijing and was founded in 2019. With its vibrant fashion art and expression of life, it quickly became a highly anticipated rock band today.

Recently, SummerVapor Summer Solstice Dream is on a nationwide tour and will also perform in Hangzhou next week.

Before the incident, the band Summer Vapor had just finished their summer solstice performance in Shanghai and returned to Beijing to take this flight!

Summer Vapor told Orange Persimmon Interactive reporters that many netizens were actually posting the specific details of the plane's turbulence at that time, and they didn't want to recall it anymore. However, as experienced individuals, they felt that the situation at that time might have been much more terrifying than described in words.

For this experience, band Summer Vapor Xia Zhimeng said that the closest one to the hot search was to be so involved, almost thinking that a tour had invested both money and life.

"After the turbulence, the crew broadcasted to search for medical professionals, and one of the passengers stood up and immediately helped the injured passenger."

Afterwards, they shared their memories of the time——

At that time, a passenger stood up to help the injured passenger and led everyone to applaud for the crew.

After landing smoothly, musicians from various bands on the plane stood up and helped some people with mobility difficulties find lost phones, headphones, and other items, finding a stack of phones.

Thank you to the professional crew of flight CA1524 for providing everyone with a thrilling and unforgettable flight experience. Wishing everyone a safe landing every time they take off! Wishing every musician a smooth and prosperous performance journey! Music is important, but living a warm life, every flight has people looking forward to it, and more importantly.

What is clear sky turbulence?

Why would the "clear sky turbulence" mentioned by Air China in this announcement occur even in the absence of thunderstorms?

Usually, airplanes move at high speeds in the air. When the airflow is stable, the aircraft can maintain its own speed, altitude, and heading, and passengers can hardly feel the aircraft moving.

And clear sky turbulence usually occurs at an altitude of over 6000 meters.

Clear air turbulence refers to the turbulence generated by clear air turbulence, which often occurs in the upper troposphere or lower stratosphere, especially in the vicinity of jet streams. Clear air turbulence is often accompanied by strong wind shear and significant wind speed fluctuations.

In recent years, the probability of clear sky turbulence has increased

According to Xinhua News Agency's new media, a study in the UK shows that in recent decades, the probability of airplanes encountering clear air turbulence during flight has been increasing, which is closely related to global warming under climate change. The research report is published in the monthly issue of Geophysical Communications in the United States.

According to a report by the British Broadcasting Corporation on the 12th, researchers from the University of Reading in the UK have compiled data on the flight conditions of multiple routes from 1979 to 2020, and found that the frequency of severe clear air turbulence on a usually busy North Atlantic route has increased by 55% over these years, making it the most frequent among all routes in the statistics. From a regional perspective, the number of clear sky turbulence increases the most on the routes over the United States and the North Atlantic. The turbulence on the routes to Europe, the Middle East, and the South Atlantic has also significantly increased.

"Research shows that climate change will increase the frequency of clear sky turbulence. We now have evidence that this increase has begun," Williams said. "More advanced turbulence prediction and detection systems should be invested in to prevent unstable air currents from making flights more turbulent in the coming decades."

Clear sky turbulence is not related to strong convective activity. Its occurrence is not accompanied by obvious weather phenomena, and there is no clear boundary between the bumpy and non bumpy areas, making it difficult for pilots to detect.

Severe clear sky turbulence is rare

It is important to fasten the seat belt

According to the BBC, severe clear sky turbulence is very rare, and passenger injuries are usually caused by not fastening their seat belts.

"People should not avoid flying because they are afraid of bumps. However, unless it is necessary to walk around, it is wise to always wear a seat belt, and pilots do the same." Williams said that even in the worst bumps, seat belts can ensure personnel safety.

The occurrence of bumps does not mean it is unsafe

Strong and severe bumps are almost difficult to avoid

Under what circumstances will strong bumps be encountered?

According to the comprehensive civil aviation experts of China Civil Aviation Daily, the main factors include uneven heating of the air, mutual influence of aircraft, strong winds, thunderstorms, and other factors.

Civil aviation experts believe that during high-altitude flight, sudden changes in high-altitude winds or uneven heating of the air can cause disturbances that are difficult to detect visually, leading to clear air turbulence.

Qi Qi, Associate Professor at Guangzhou Civil Aviation Vocational and Technical College, stated that the fundamental cause of severe turbulence is the short-term imbalance of aircraft forces caused by changes in lift on various lift generating surfaces during flight. Modern civil aviation aircraft will add relevant software and hardware requirements in aircraft design and airworthiness certification, but it is impossible to completely avoid severe turbulence.

How to avoid bumps?

Civil aviation experts believe that if it is an area that is prone to severe turbulence due to seasonal changes and regional routes, the aviation meteorological data collection and analysis department of the civil aviation air traffic control system will "avoid" the relevant prone areas before the flight takes off in the form of route meteorological telegrams. Severe turbulence must be caused by "unruly" and "mischievous" airflow, which cannot be recognized and judged by current meteorological monitoring and related prediction technologies.

In response to bumps, civil aviation mainly deals with them through three aspects: early prediction and warning of bumps, technical detection to avoid bumps, and reasonable procedures to escape bumps.

When an aircraft encounters clear air turbulence, the crew generally takes measures to change the flight altitude to escape from the turbulence zone.

Usually, pilots are not allowed to change their flight altitude without authorization during the flight. If they encounter prolonged or severe turbulence during the flight, the pilot will proactively apply to the controller to change the flight altitude. The controller will select the aircraft to command the altitude change based on the current air traffic situation.

What do passengers need to do when there is a clear sky turbulence?

Experts say that experiencing turbulence does not necessarily mean aviation is unsafe.

When encountering turbulence, passengers should first fasten their seat belts, grab onto the fixed objects around them, overcome their fear as much as possible, and choose a mid plane position.