State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
Institute of Urban Meteorology, Chinese Meteorological Administration, Beijing 100089, China.
Sci Rep. 2017 Mar 21;7:44851. doi: 10.1038/srep44851.
PM2.5 plays a key role in the solar radiation budget and air quality assessments, but observations and historical data are relatively rare for Beijing. Based on the synchronous monitoring of PM2.5 and broadband solar radiation (R), a logarithmic function was developed to describe the quantitative relationship between these parameters. This empirical parameterization was employed to calculate R from PM2.5 with normalized mean bias (NMB) -0.09 and calculate PM2.5 concentration from R with NMB -0.12. Our results indicate that this parameterization provides an efficient and straightforward method for estimating PM2.5 from R or R from PM2.5.
PM2.5 在太阳辐射收支和空气质量评估中起着关键作用，但北京的观测和历史数据相对较少。基于 PM2.5 和宽带太阳辐射（R）的同步监测，建立了一个对数函数来描述这些参数之间的定量关系。该经验参数化用于根据 PM2.5 计算 R，归一化平均偏差（NMB）为-0.09，根据 R 计算 PM2.5 浓度，NMB 为-0.12。结果表明，该参数化提供了一种从 R 估算 PM2.5 或从 PM2.5 估算 R 的有效且直接的方法。
