Articles | Volume 14, issue 12
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, Kimberly Strong, Kaley Walker, Erik Lutsch, Tobias Borsdorff, and Jochen Landgraf

Data sets

Data Quality Flags for ACE- FTS Level 2 Version 4.1/4.2 Data Set Patrick Sheese and Kaley Walker

Sentinel-5P Expert Users Data Hub ESA

TROPOMI Level 2 Carbon Monoxide total column products, Version 01 Copernicus Sentinel-5P (processed by ESA)

Level 2 Data, Version 4.1/4.2 ACE-FTS 2/display_data.php

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.