A few days ago, the lake and environmental change team of the Institute of Qinghai Tibet Plateau, Chinese Academy of Sciences, successfully obtained 144.79 meters of core under nearly 100 meters of water in the Central Lake area of Namco, Qinghai Tibet Plateau, with a drilling depth of 153.44 meters. It is expected to reconstruct nearly 150000 years of continuous climate and environmental records. Previously, the maximum drilling depth of plateau lakes in China was 114.9 meters. The successful drilling of Namco core is the first time that the lake core drilling in China has reached 150 meters level. < / P > < p > located in the hinterland of the Qinghai Tibet Plateau, Namco Lake has an altitude of about 4730 meters. To carry out core drilling in this area, weather is the biggest challenge. The drilling work was officially started on July 1, 2019. After drilling nearly 20 meters of core, it was forced to suspend due to weather technology and other reasons. On July 1, 2020, drilling work will start again. The lake and environmental change team cooperated with the drilling company to carry out technical research. In the face of the environment of deep water and big waves in Namco, the key technical problems such as the instability of the offshore drilling platform and the difficulty in fixing the casing were solved one by one. Finally, the established goal of the Namco drilling was successfully completed. This shows that China has been able to use the self-developed technology to obtain long-scale and high coring rate Lake cores in deep-water areas. Wang Junbo, director of the Namucuo drilling project and researcher of the lake and environment change team of the Institute of Qinghai Tibet Plateau, Chinese Academy of Sciences, said: “since the launch of the second Qinghai Tibet scientific research expedition, we have obtained a large number of first-hand Lake observation data based on the deep-water lake of the Northern Tibetan Plateau as the main research area, and carried out the water resources change of Asian water tower and its impact on climate change In response to climate change, the trend of water tower change in Asia and the change of paleoenvironment were observed and studied. Among them, the Namco long core drilling is our key research topic Zhu Liping, head of the lake and environmental change team of the Institute of Qinghai Tibet Plateau, Chinese Academy of Sciences, said that the successful acquisition of 144.79 meters of core has accumulated successful experience for the implementation of the international Continental Scientific Drilling Program. It not only improves the drilling level technically, but also lays the foundation for future high-level research, and also improves the voice of Chinese scientists in the cooperative projects. The purpose of this study is to reconstruct the climatic cycles and characteristic events since the last interglacial period by using lake core indicators, which is of great significance for understanding the long-term synergy of westerly monsoon. It is understood that the Namco multi circle comprehensive observation and research station of the Chinese Academy of Sciences is an important scientific research base in the “two rivers and two lakes” region of the second Qinghai Tibet scientific research expedition, and has carried out observation and Research on Namco for 15 years. Global Tech