1 .67 For sixty-seven years, a huge national survey team insisted on measuring the land of the motherland with both feet. They visited Mount Everest seven times, visited Antarctica twice, entered the wasteland of Inner Mongolia 39 times, went deep into the no-man's land of Tibet 52 times, and set foot in the hinterland of Xinjiang 52 times, with a hiking trip of more than 60 million kilometers. In recent years, the qualified rate of all production projects undertaken by the brigade is 100%, and the excellent product rate is over 95%. The project and scientific research achievements have won the National Surveying and Mapping Science and Technology Progress Award and the National Excellent Surveying and Mapping Engineering Award for many times. In the past 67 years, the first investigation team in China has completed more than 654.38+00000 points of national triangulation at all levels, established more than 654.38+000000 investigation targets and provided more than 50 million sets of various investigation data. Has undertaken and participated in the national geodetic control network survey, completed the joint survey of China-Mongolia, China-Soviet Union and China-Nepal border, the Beijing-Tianjin-Tangshan Zhangjiakou earthquake leveling campaign and the national gravity basic network survey in 2000. A series of major surveying and mapping projects, such as national GPS Class A and Class B network, national elevation control network, China highway network GPS surveying and mapping project, China people's origin construction and management, island reef surveying and mapping, and the first national geographic survey.
2. In May, 2020, the First National Surveying and Mapping Team measured the height of Mount Everest for the seventh time, and finally determined that the latest elevation of Mount Everest was 8848.86 meters, which showed the world the great achievements of China's surveying and mapping technology. Two trips to the South Pole, seven trips to Mount Everest, 39 trips to the wasteland in Inner Mongolia, 52 trips to the plateau no man's land and 52 trips to the desert hinterland? Since 1954 was established, a huge national survey team has walked more than 60 million kilometers, which is equivalent to circling the earth 1500 times. The history of the first national examination team is a heroic history that challenges the limits of life. Since the establishment of the team, 46 employees have died, and many people's names are hard to find, and even a tombstone has not been erected in time. The legend of their life is only witnessed by the earth. For more than 60 years, suffering has been a family heirloom, a dedication and a family banquet. People are running for happiness, but you are inclined to difficult challenges. For the country's asceticism, for the supremacy of science, across mountains and seas, across the sky and latitude, your figure is a hunting flag inserted in the earth.
Thirdly, the first national investigation team conducted six investigations on Mount Everest in 1966, 1968, 1975, 1992, 1998 and 2005 respectively. In order to accurately measure the altitude of Mount Everest, the national survey team ran six times. Life forbidden zone? With tenacious will, the height of Mount Everest was measured twice. 1On May 27th, 975, the red beacon tower was first erected on the summit of Mount Everest. At an altitude of 8848. 13m, this is the first time that China people have accurately measured the height of Mount Everest, and it has been recognized by UNESCO and the whole world. Thirty years later, in 2005, the government of China decided to survey Mount Everest again, and a large team of national surveyors climbed Mount Everest again, and accurately measured the elevation of the rock surface at the peak of 8844.43 meters, found out the thickness of ice and snow at the depth of 3.5 meters, and revised Mount Everest again. Height? . At the same time, modern measurement methods such as satellite positioning are combined with traditional measurement technology for the first time; For the first time, gravity measurement was pushed to the height of 7790 meters; Successfully completed the task of radar snow depth detection at the summit of Mount Everest for the first time.