The Construction Method and Application of a “Wind-PM2.5” Synergistic Monitoring Network in a Piedmont Residential Area: A Case Study in Xiangyang
摘要
Affected by the undulating terrain, the “wind-pollution” environment in the piedmont area is complex and changeable. This paper focuses on the piedmont area with a complex and changeable “wind-pollution” environment. Aiming at the problem of low spatio-temporal resolution of China's existing environmental monitoring network, a collaborative monitoring method for the near-surface “wind-pollution” environment in piedmont residential areas is proposed. Firstly, based on the results of remote sensing image discrimination and field surveys, the Liuhuajian Yucai Community in Xiangyang City, which has obvious spatial characteristic points and stable geological conditions, is selected as the experimental area. Secondly, through equipment comparison, the American Thermo Fisher Scientific Thermo pDR-1500, which combines light scattering method and filter membrane weighing method, the Chinese Shenzhen Empare using the light scattering method, and the Chinese Qingdao Jingdao JD-SWF1CC and JD-F1CC ultrasonic anemometers are determined as the experimental equipment. Thirdly, monitoring stations are set up at terrain change points and characteristic points of the internal spatial form of the residential area to construct a collaborative monitoring network for the “wind-pollution” environment in the piedmont area. The rationality of the monitoring network is verified from the background environmental conditions, the characteristics of the diurnal reversal of valley winds, and the quality control of monitoring data. Finally, field observation experiments are carried out, and a qualitative analysis is conducted on the data collected by the monitoring network. This paper provides an important reference for investigating the variation characteristics of valley winds and PM2.5 in the piedmont area and improving the “wind-pollution” environment in piedmont residential areas.