Articles | Volume 14, issue 1
Atmos. Meas. Tech., 14, 615–646, 2021
https://doi.org/10.5194/amt-14-615-2021
Atmos. Meas. Tech., 14, 615–646, 2021
https://doi.org/10.5194/amt-14-615-2021

Research article 28 Jan 2021

Research article | 28 Jan 2021

Assessment of the TROPOMI tropospheric NO2 product based on airborne APEX observations

Frederik Tack et al.

Download

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Frederik Tack on behalf of the Authors (07 Oct 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (19 Oct 2020) by Lok Lamsal
RR by Anonymous Referee #1 (30 Oct 2020)
ED: Publish subject to minor revisions (review by editor) (09 Nov 2020) by Lok Lamsal
AR by Frederik Tack on behalf of the Authors (19 Nov 2020)  Author's response    Manuscript
ED: Publish as is (24 Nov 2020) by Lok Lamsal
Download
Short summary
We assess the TROPOMI tropospheric NO2 product (OFFL v1.03.01; 3.5 km × 7 km at nadir observations) based on coinciding airborne APEX reference observations (~75 m × 120 m), acquired over polluted regions in Belgium. The TROPOMI NO2 product meets the mission requirements in terms of precision and accuracy. However, we show that TROPOMI is biased low over polluted areas, mainly due to the limited spatial resolution of a priori input for the AMF computation.