Comparative simulation experiment of air pollution comprehensive seismic exploration project in offshore maritime boundary layer

[ Instrument Network Instrument Development ] In September 2019, the National Key R&D Program “Research and Application of Integrated Stereoscopic Detection Technology for Atmospheric Pollution in the Offshore Ocean Boundary Layer”, hosted by Liu Jianguo, Researcher of Hefei Research Institute of Chinese Academy of Sciences, conducted a large-scale external field comparison observation in Shenzhen. experiment. On September 12, the project tracking expert, researcher Chen Liangfu from the Institute of Remote Sensing and Digital Earth of the Chinese Academy of Sciences, and the project leader Liu Jianguo, researcher of the Hefei Research Institute of the Chinese Academy of Sciences, visited the experimental site and organized a seminar on instrument development and comparison experiments. Specific requirements and guiding recommendations.

The observation experiment lasted about one month, focusing on the five elements of the project's independent research and development (multi-scale horizontal wind field and wind profile, temperature, water vapor, ozone and particulate matter) to detect the turbulent fine structure of the laser radar and the oceanic atmosphere boundary layer. Real-time measurement system for vertical distribution profiles, surface water and near-surface atmospheric CO2 and H2O concentration in-situ detection sensors, offshore open optical path CO2 concentration detection system, marine aerosol particle size spectrometer and other instruments and equipment, more than 30 sets / sets, Based on the Shenzhen Meteorological Gradient Observation Tower, the Yangmeikeng Ecological Monitoring Center Station and the Xiyong Beach Observation Point, a multi-platform based on “near-surface observation – iron tower gradient observation – drone mount – radar vertical observation – multi-source satellite remote sensing” Compare the observation experiments, verify the performance of various instruments, establish an integrated interactive profile data verification technology system, and obtain the meteorological parameters and the distribution characteristics of major pollutants in the atmospheric boundary layer of Shenzhen offshore.

The project is led by the Hefei Institute of Material Science of the Chinese Academy of Sciences. The participating institutions include the Institute of Atmospheric Physics of the Chinese Academy of Sciences, the Second Institute of the State Oceanic Administration, the University of Science and Technology of China, Fudan University, Ocean University of China, Xiamen University, and Nanjing University of Information Engineering. As well as operational monitoring units such as the China National Environmental Monitoring Center, the National Marine Environmental Monitoring Center, the National Satellite Ocean Application Center, and the Meteorological Detection Center of the China Meteorological Administration, the multi-pollutants of the offshore atmospheric boundary layer will coexist and the environmental conditions will be complex (high humidity, high salt). The characteristics of time and space change are uneven. With the research and development of fast, online and stereoscopic monitoring technology as the core, the research and development of the marine atmospheric boundary layer stereoscopic detection technology system with independent intellectual property rights and multi-data normalization is used to realize the boundary layer physicochemical system of the offshore atmosphere. The detection of high spatial and temporal resolution of the structure; supporting the construction of the national environmental monitoring network, providing technical support for the scientific research of offshore air pollution in China.