China News Service, Beijing, May 15 (Reporter Sun Zifa) The Chinese Academy of Sciences (CAS) released the latest news that China's second comprehensive scientific expedition to the Qinghai-Tibet Plateau (Everest) is being carried out in the Tibet Autonomous Region. During the peak scientific expedition mission, at 4:40 on May 15, Beijing time, the "Jimu No. 1" III-type floating airship platform reached an altitude of 9032 meters, exceeding the height of Mount Everest, the highest peak in the world, creating a floating airship for atmospheric scientific observation. world record.

  The "Jimu No. 1" III floating airship platform is equipped with a water vapor stable isotope analyzer, black carbon, methane, ozone and other analytical instruments and equipment. This observation has obtained the atmospheric water vapor transmission and the vertical change of greenhouse gases in the Mount Everest region. The key scientific data provides an important scientific basis for revealing the environmental changes of the Qinghai-Tibet Plateau under the influence of westerly wind transmission.

  Yao Tandong, the captain of the second Qinghai-Tibet scientific expedition team and an academician of the Chinese Academy of Sciences, said that this observation is a fusion of high-tech and cutting-edge science, and has entered an advanced mode in scientific observation.

This is the first time in the world to observe the changing characteristics of the most critical parameters such as water vapor and greenhouse gases in the earth sciences in the Mount Everest region and beyond the height of Mount Everest at an altitude of more than 9,000 meters.

He believes that these achievements will eventually make scientific contributions to China and mankind, as well as to the development of human society and the global response to climate change.

Group photo of the comprehensive observation and scientific expedition team of the floating airship.

Photo courtesy of the Chinese Academy of Sciences

  Cai Rong, secretary of the Party Committee of the Institute of Aerospace Information Innovation of the Chinese Academy of Sciences (CAS), said that scientific research is a representative of important practical activities for human beings. It can not only increase human's understanding of the laws of motion in the natural world, but also promote the development of technology.

"At this stage, it is an important measure for us to implement our innovation-driven development strategy."

  The "Jimu No. 1" III-type floating airship was independently developed by the Chinese Academy of Sciences. It is also the second Qinghai-Tibet flight after the observation altitude of the "Jimu No. 1" I-type floating airship developed by the academy in 2019 reached 7,003 meters above sea level. The world record for the scientific observation height of the tethered floating craft in the air.

At the same time, the "Jimu No. 1" III-type floating airship platform performing the mission in the Mount Everest area is the first breakthrough in the known plateau tethered floating airship in terms of technical difficulty, airborne height, and types of loads carried. .

  According to reports, the "Jimu No. 1" III-type floating airship challenged the observation altitude of 9,000 meters above sea level, and mainly overcome three difficulties: First, under the environmental conditions of low temperature, low pressure and high wind speed at an altitude of 9,000 meters, the monitoring of the tethered floating airship platform system Strict requirements are put forward for reliability; secondly, the hull material of this mooring floating craft is a lightweight, low-density, high-strength, radiation-resistant composite fabric material independently developed by China. It is the first time that the application of this invention is of great significance in scientific research and engineering application; thirdly, the hull, control system, energy source of the mooring floating craft in the complex electromagnetic environment at an altitude of 9,000 meters and the environmental conditions of low temperature, low pressure and high wind speed The stability of the system and the mooring system presents a huge challenge.

  This Everest scientific expedition mission is composed of 63 scientific expedition members from the Qinghai-Tibet Plateau Institute of the Chinese Academy of Sciences, the Chinese Academy of Sciences Institute of Aeronautics and Astronautics, the Changchun Institute of Optics and Mechanics of the Chinese Academy of Sciences, and the Eight Institutes of the China Electric Power Division.

According to the scientific expedition plan, the scientific expedition team will seize the favorable scientific observation window of observation in the future to obtain more observation data and help scientific research to achieve greater success.