△ The top team members of the scientific expedition displayed the five-star red flag at the summit of Mount Everest
For the first time, high-precision radar was used at the top of the earth to measure the thickness of ice and snow at the summit
At noon on May 4, 13 Members of the Everest Expedition team successfully reached the summit of Mount Everest at 8848.86 meters. This is the first time that the scientific expedition of Mount Everest on the mainland has exceeded the altitude of more than 8,000 meters, which is of epoch-making significance in the history of scientific investigation and research on the Qinghai-Tibet Plateau.
At the summit of Mount Everest this time, the scientific expedition team members completed the erection of the world's highest altitude automatic weather station. At 3:00 a.m. on the same day, the Everest Scientific Expedition Summit Working Group headed by Deqing Ouzhu carried scientific research instruments to launch a summit, and the first mission was to set up a weather station. To do this, they practiced repeatedly months ago and became proficient in the process.
On the way to start the scientific expedition to the top, the scientific expedition climbing personnel inspected and debugged the automatic weather stations that had been erected at an altitude of 7028 meters, 7790 meters and 8300 meters along the way.
Zhao Huabiao, a researcher at the Institute of Tibetan Plateau Research of the Chinese Academy of Sciences, said: "The construction of the Everest gradient meteorological observation system on the mainland is of great significance to the monitoring of changes in glaciers and snow cover at high altitudes. ”
On the same day, the expedition team also used high-precision radar at the top of the earth for the first time to measure the thickness of ice and snow at the summit.
In the tent of the commander-in-chief conference room at the foot of Mount Everest at an altitude of 5200 meters, Yao Tandong, academician of the Chinese Academy of Sciences and captain of the second Qinghai-Tibet scientific expedition team, announced on the spot: "Peak Mission" The Everest scientific expedition has successfully climbed to the top of the observation and sampling! At the scene, everyone warmly applauded and shook hands to celebrate.
According to reports, the scientific expedition team will also carry out a number of scientific investigations and studies in the future.
Why build a weather station on top of the earth?
At about 12:46 on May 4, a set of automatic meteorological observation stations weighing 50 kilograms were successfully erected at an altitude of 8830 meters on the north slope of Mount Everest (hereinafter referred to as Mount Everest), and real-time data was transmitted back to normal.
This is the world's highest altitude automatic meteorological observation station, refreshing the china automatic meteorological observation station erection height record (the original record of 8300 meters, erected on the north slope of Mount Everest on April 20), the actual measurement data obtained to fill the gap in the extremely high altitude meteorological record of Mount Everest, but also means that China's Everest gradient meteorological observation system was initially completed.
△ At 12:46 on May 4, an automatic meteorological observation station was successfully erected
In addition to building an automatic meteorological observation station at an altitude of 8830 meters, the expedition team members also used high-precision radar to measure the thickness of ice and snow at the top of the earth for the first time; tried to break the world record for the atmospheric observation altitude of the floating boat; tracked the transportation of atmospheric pollution at very high altitude and the high altitude adaptability of scientific expedition personnel.
The Qinghai-Tibet Plateau is the roof of the world, the water tower of Asia, the third pole of the earth, and an important ecological security barrier and strategic resource reserve base of the mainland. From a climatic point of view, the Tibetan Plateau is a giant regulator of monsoons and westerly winds, with important implications for global climate change. With global warming, the Qinghai-Tibet Plateau region shows the characteristics of the higher the altitude, the greater the increase in heating.
This scientific expedition will reveal the environmental changes in the extremely high altitude area of Mount Everest under the background of climate warming, the characteristics of greenhouse gas concentration changes, the function of ecosystem carbon sinks, and the characteristics of human adaptation to extreme environments, etc., and serve the construction of the ecological civilization highland on the Qinghai-Tibet Plateau and the environmental protection and green development of the third pole.
In order to ensure the smooth completion of various Everest scientific expedition tasks including the construction station and the safe climbing of personnel, the Institute of Tibetan Plateau Research of the Chinese Academy of Sciences, the Chinese Academy of Meteorological Sciences and the Meteorological Bureau of the Tibet Autonomous Region have joined hands to carry out meteorological support work. Up to now, the security team has provided 9 special forecasts for the scientific expedition team.
According to CCTV News, Xinhua News Agency, China Meteorological News
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Editor| Xie Bing guo juan