At about 12:46 on May 4, a set of automatic meteorological observation stations weighing 50 kilograms was successfully erected on the north slope of Mount Everest (hereinafter referred to as "Everest") at an altitude of 8830 meters, and the real-time data was returned to normal.

This is the highest automatic meteorological observation station in the world, setting a new record for the erection of China's automatic meteorological observation station (the original record was 8,300 meters, which was erected on the north slope of Mount Everest on April 20). The extremely high altitude meteorological record is blank, which also means that China's Mount Everest gradient meteorological observation system has been initially established.

  The second comprehensive scientific expedition and research on the Qinghai-Tibet Plateau, which has lasted for 5 years, started the "Peak Mission 2022 - Comprehensive Scientific Expedition and Research in the Very High Altitude Area of ​​Mount Everest" this year.

The Mount Everest scientific expedition was jointly carried out by the second Qinghai-Tibet scientific expedition team and the Tibet Mountaineering Team. 16 scientific expedition teams from 5 scientific expedition teams and a total of more than 270 scientific expedition team members participated, mainly focusing on the synergy between the west wind and the monsoon. , Asian water tower changes, ecosystems and biodiversity, changes in human activities, geodynamic surveys, etc. It is the second Qinghai-Tibet scientific expedition since its launch in 2017. State-of-the-art comprehensive examinations.

  The "Westerly-Monsoon Synergy and Influence Team" composed of the Qinghai-Tibet Plateau Institute of the Chinese Academy of Sciences, the Chinese Academy of Meteorological Sciences and the Tibet Autonomous Region Meteorological Bureau used the radio sounding system to detect the temperature from the ground to an altitude of 20,000 meters at Mount Everest Base Camp. Changes in humidity and air pressure, use the laser wind radar to monitor the wind direction and wind speed from the ground to the height of Mount Everest in real time, and use the microwave radiometer to measure the vertical temperature and humidity profiles of the atmosphere from the ground to 10,000 meters above the ground to provide scientific research support. Real-time data and accurate weather forecast for the Everest region and base camp to the summit of Mount Everest at different heights.

  Since last year, Everest scientific expedition experts and expedition summit members have overcome many difficulties and successively built and operated 7 sets of automatic meteorological observation stations on the north slope of Mount Everest at an altitude of 5,200 to 8,300 meters.

These weather stations are distributed in steps and can accurately measure data such as temperature, relative humidity, wind speed, wind direction and solar radiation on the north slope of Mount Everest.

Through the collected meteorological data, the change characteristics of meteorological elements at extremely high altitudes can be further studied, which is of great significance to the monitoring of changes in high-altitude glaciers and snow cover.

  In addition to building an automatic meteorological observation station at an altitude of 8,830 meters, the expedition team used high-precision radar to measure the thickness of ice and snow on the top of the earth for the first time; tried to break the world record for atmospheric observation by airships; tracked atmospheric pollution at extremely high altitudes transportation and high-altitude adaptability of scientific expedition personnel.

  The Qinghai-Tibet Plateau is the "Roof of the World", "Asia's Water Tower" and "Earth's Third Pole". It is an important ecological security barrier and strategic resource reserve base in China.

From a climatic point of view, the Qinghai-Tibet Plateau is a giant regulator of monsoon and westerly winds, and has an important impact on global climate change.

With global warming, the Qinghai-Tibet Plateau shows the characteristics of higher temperature rise with higher altitude.

This scientific expedition will reveal the law of environmental changes in the extremely high altitude area of ​​Mount Everest under the background of climate warming, the characteristics of changes in greenhouse gas concentrations, the carbon sink function of the ecosystem, and the characteristics of human adaptation to extreme environments, etc. Three-pole environmental protection and green development.

  In order to ensure the successful completion of the various Everest scientific expedition tasks including the construction of the station and the safe climb of the personnel, the Institute of Qinghai-Tibet Plateau of the Chinese Academy of Sciences, the Chinese Academy of Meteorological Sciences, and the Tibet Autonomous Region Meteorological Bureau have jointly carried out meteorological support work.

Up to now, the security team has provided 9 special forecasts for the scientific expedition team.

(Our reporter Cui Xingyi, our correspondent Liu Qian)