China's self-developed APSOS system was successfully deployed in Yangbajing, Tibet

[ China Instrument Network Instrument Development ] Recently, China's self-developed "multi-band multi-wavelength atmospheric component active and passive detection system" (hereinafter referred to as APSOS) was successfully deployed in Tibet Yangbajing at an altitude of 4,300 meters to further develop the Qinghai-Tibet Plateau atmospheric science research. Provides strong technical support.

The existing satellite observations indicate that there are ozone troughs in the summer over the Tibetan Plateau, and numerical simulations show that the Tibetan Plateau in summer is the main channel for surface water vapor and pollutants to the global stratospheric atmosphere, and to regional and global weather, climate and environmental changes. Has an important role.

Therefore, it is necessary to carry out continuous observation experiments on various atmospheric components of the Qinghai-Tibet Plateau and obtain its temporal and spatial evolution characteristics, so as to further deepen the understanding and understanding of the Qinghai-Tibet Plateau atmosphere and understand the climate change and human activities on the Qinghai-Tibet Plateau and even the global atmosphere. The impact of the region provides important observations for regional atmospheric environmental monitoring and meteorological disaster prediction to better protect the pure land.

However, there are still some shortcomings in the existing satellite observations and base station network observations. Humans need to improve the prediction, prediction and prediction capabilities of the atmospheric environment. They also need to obtain a comprehensive long-term view of the main elements of the entire atmosphere in the vertical direction. Continuous observation of data. The APSOS system is capable of continuous multi-element observation of the vertical atmosphere from the surface to a height of 110 km.

The APSOS system is one of the first national research projects for the development of major scientific research equipment funded by the National Natural Science Foundation of China. In 2012, the APSOS project was established with a total investment of more than 93 million yuan. Since June 2016, it has been commissioned at the Huainan Research Institute of the Institute of Atmospheric Physics, Chinese Academy of Sciences. In August 2018, the project officially passed the acceptance test.

APSOS is the world's first large-scale active-passive integrated detection system with multi-component and multi-factors in the neutral atmosphere. It consists of 5 instruments, 5 millimeter wave cloud radar, 1 terahertz superconducting radiation spectrometer and 1 combined telescope. Viewed from the sky, centered on the building where the combined telescope is located, the container compartments with equipment are distributed around the whole system in a “meter” shape.

The research team compared APSOS to a "laser pen" that detects the atmosphere. Because this system mainly uses the observation equipment placed at the station, a beam of laser light is generated in the direction of the zenith to obtain various meteorological elements such as atmospheric temperature, humidity, wind field and cloud layer distribution, and realize vertical structure and movement changes to the atmosphere. Research with component delivery.

The success of this system in Yangbajing, Tibet, marks that China has mastered the key technologies of the international frontier in the field of atmospheric exploration research, and has the integrated system integration capability and the independent monitoring capability of the atmospheric space environment, in order to further develop the Qinghai-Tibet Plateau atmospheric science. Research provides strong technical and empirical support.

(Source: China Tibet News Network, Institute of Atmospheric Physics, Chinese Academy of Sciences, Science and Technology Daily)