Articles | Volume 14, issue 12
Atmos. Meas. Tech., 14, 7707–7728, 2021
https://doi.org/10.5194/amt-14-7707-2021
Atmos. Meas. Tech., 14, 7707–7728, 2021
https://doi.org/10.5194/amt-14-7707-2021

Research article 08 Dec 2021

Research article | 08 Dec 2021

Intercomparison of CO measurements from TROPOMI, ACE-FTS, and a high-Arctic ground-based Fourier transform spectrometer

Tyler Wizenberg et al.

Data sets

Data Quality Flags for ACE- FTS Level 2 Version 4.1/4.2 Data Set Patrick Sheese and Kaley Walker https://doi.org/10.5683/SP2/BC4ATC

Sentinel-5P Expert Users Data Hub ESA https://s5pexp.copernicus.eu/

TROPOMI Level 2 Carbon Monoxide total column products, Version 01 Copernicus Sentinel-5P (processed by ESA) https://doi.org/10.5270/S5P-1hkp7rp

Level 2 Data, Version 4.1/4.2 ACE-FTS https://databace.scisat.ca/level2/ace_v4.1_v4. 2/display_data.php

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Short summary
CO is an important atmospheric gas that influences both air quality and the climate. Here, we compare CO measurements from TROPOMI with those from ACE-FTS and an Arctic ground-based FTS at Eureka, Nunavut, to further characterize the accuracy of TROPOMI measurements. CO columns from the instruments agree well but show larger differences at high latitudes. Despite this, the results fall within the TROPOMI accuracy target, indicating good data quality at high latitudes.