Articles | Volume 14, issue 12
Atmos. Meas. Tech., 14, 7405–7433, 2021
https://doi.org/10.5194/amt-14-7405-2021

Special issue: TROPOMI on Sentinel-5 Precursor: first year in operation (AMT/ACP...

Atmos. Meas. Tech., 14, 7405–7433, 2021
https://doi.org/10.5194/amt-14-7405-2021
Research article
30 Nov 2021
Research article | 30 Nov 2021

TROPOMI tropospheric ozone column data: geophysical assessment and comparison to ozonesondes, GOME-2B and OMI

Daan Hubert et al.

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Short summary
We assess the first 2 years of TROPOMI tropical tropospheric ozone column data. Comparisons to reference measurements by ozonesonde and satellite sensors show that TROPOMI bias (−0.1 to +2.3 DU) and precision (1.5 to 2.5 DU) meet mission requirements. Potential causes of bias and its spatio-temporal structure are discussed, as well as ways to identify sampling errors. Our analysis of known geophysical patterns demonstrates the improved performance of TROPOMI with respect to its predecessors.