Replication Data for: NDACC FTIR trace gas measurements at the University of Toronto Atmospheric Observatory from 2002 - 2020

Nineteen years of atmospheric composition measurements made at the University of Toronto Atmospheric Observatory (TAO, 43.66N, 79.40W, 174 m a.s.l.) are presented. These are retrieved from Fourier transform InfraRed (FTIR) solar absorption spectra recorded with an ABB Bomem DA8 spectrometer from May 2002 to December 2016. The retrievals have been optimized for fourteen species: O3, HCl, HF, HNO3, CH4, C2H6, CO, HCN, N2O, C2H2, H2CO, CH3OH, HCOOH and NH3 using the SFIT4 algorithm. The measurements have been archived in the Network for Detection of Atmospheric Composition Change (NDACC) database in Hierarchical Data Format version 4 (HDF4) files following the Generic Earth Observation Metadata Standard (GEOMS).本数据集呈现了多伦多大学大气观测台（University of Toronto Atmospheric Observatory, TAO，坐标43.66°N，79.40°W，海拔174米）为期19年的大气成分观测数据。此类数据通过2002年5月至2016年12月期间，使用ABB Bomem DA8型光谱仪记录的傅里叶变换红外（Fourier transform InfraRed, FTIR）太阳吸收光谱反演得到。本次反演采用SFIT4算法，针对14种大气成分完成优化：O3（臭氧）、HCl（氯化氢）、HF（氟化氢）、HNO3（硝酸）、CH4（甲烷）、C2H6（乙烷）、CO（一氧化碳）、HCN（氰化氢）、N2O（一氧化二氮）、C2H2（乙炔）、H2CO（甲醛）、CH3OH（甲醇）、HCOOH（甲酸）以及NH3（氨）。所有观测数据已遵循通用地球观测元数据标准（Generic Earth Observation Metadata Standard, GEOMS），以分层数据格式第4版（Hierarchical Data Format version 4, HDF4）文件形式，归档至大气成分变化检测网络（Network for Detection of Atmospheric Composition Change, NDACC）数据库中。