Research of NO_(2) vertical profiles with look-up table method based on MAX-DOAS  

作　　者：Yingying Guo Suwen Li Fusheng Mou Hexiang Qi Qijin Zhang 郭映映;李素文;牟福生;齐贺香;张琦锦(Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation,School of Physics and Electronic Information,Huaibei Normal University,Huaibei 235000,China)

机构地区：[1]Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation,School of Physics and Electronic Information,Huaibei Normal University,Huaibei 235000,China

出　　处：《Chinese Physics B》2022年第1期332-338,共7页中国物理B（英文版）

基　　金：the National Natural Science Foundation of China(Grant No.41875040);the Top-notch Talents Program in Universities of Anhui Province,China(Grant No.gxbjZD2020067);the Natural Science Research Projects of Universities in Anhui Province,China(Grant No.KJ2020A0029).

摘　　要：Obtaining the vertical distribution profile of trace gas is of great significance for studying the diffusion procedure of air pollution.In this article,a look-up table method based on multi-axis differential optical absorption spectroscopy(MAX-DOAS)technology is established for retrieving the tropospheric NO_(2) vertical distribution profiles.This method retrieves the aerosol extinction profiles with minimum cost function.Then,the aerosol extinction profiles and the atmospheric radiation transfer model(RTM)are employed to establish the look-up table for retrieving the NO_(2) vertical column densities(VCDs)and profiles.The measured NO_(2) differential slant column densities(DSCDs)are compared with the NO_(2) DSCDs simulated by the atmospheric RTM,and the NO_(2) VCDs,the weight factor of NO_(2) in the boundary layer,and the boundary layer height are obtained by the minimization process.The look-up table is established to retrieve NO_(2) VCDs based on MAX-DOAS measurements in Huaibei area,and the results are compared with the data from Copernicus Atmospheric Monitoring Service(CAMS)model.It is found that there are nearly consistent and the correlation coefficient R2 is more than 0.86.The results show that this technology provides a more convenient and accurate retrieval method for the stereoscopic monitoring of atmospheric environment.

关 键 词：multi-axis differential optical absorption spectroscopy look-up table method the cost function NO_(2)vertical profile 

分 类 号：X51[环境科学与工程—环境工程]