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

Wizenberg, Tyler; Strong, Kimberly; Walker, Kaley; Lutsch, Erik; Borsdorff, Tobias; Landgraf, Jochen

doi:https://doi.org/10.5194/amt-14-7707-2021

Articles | Volume 14, issue 12

https://doi.org/10.5194/amt-14-7707-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-14-7707-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

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 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

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.