Articles | Volume 11, issue 12
Atmos. Meas. Tech., 11, 6651–6678, 2018
https://doi.org/10.5194/amt-11-6651-2018
Atmos. Meas. Tech., 11, 6651–6678, 2018
https://doi.org/10.5194/amt-11-6651-2018

Research article 17 Dec 2018

Research article | 17 Dec 2018

Improving algorithms and uncertainty estimates for satellite NO2 retrievals: results from the quality assurance for the essential climate variables (QA4ECV) project

K. Folkert Boersma et al.

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Short summary
This paper describes a new, improved data record of 22+ years of coherent nitrogen dioxide (NO2) pollution measurements from different satellite instruments. Our work helps to ensure that climate data are of sufficient quality to draw reliable conclusions and shape decisions. It shows how dedicated intercomparisons of retrieval sub-steps have led to improved NO2 measurements from the GOME, SCIAMACHY, GOME-2(A), and OMI sensors, and how quality assurance of the new data product is achieved.