Replication Data for: Quantifying the impact of the COVID-19 pandemic restrictions on CO, CO2, and CH4 in downtown Toronto using open-path Fourier transform spectroscopy

This dataset contains time series of trace gas mole fractions of CO2, CO, N2O, CH4, H2O, and HDO, retrieved using an Open-Path Fourier Transform Infrared (OP-FTIR) system installed at the University of Toronto Atmospheric Observatory (TAO) in downtown Toronto. It also includes meteorological parameters measured by two weather stations located near each end of the open path. The time series in this file are from November 2017 to March 2021.