Articles | Volume 11, issue 4
Atmos. Meas. Tech., 11, 2395–2426, 2018
https://doi.org/10.5194/amt-11-2395-2018

Special issue: TROPOMI on Sentinel-5 Precursor: data products and...

Atmos. Meas. Tech., 11, 2395–2426, 2018
https://doi.org/10.5194/amt-11-2395-2018

Research article 26 Apr 2018

Research article | 26 Apr 2018

Algorithm theoretical baseline for formaldehyde retrievals from S5P TROPOMI and from the QA4ECV project

Isabelle De Smedt et al.

Data sets

QA4ECV HCHO tropospheric column data from OMI (Version 1.1) De Smedt, I., H. Yu, A. Richter, S. Beirle, H. Eskes, K. F. Boersma, M. Van Roozendael, J. Van Geffen, A. Lorente, and E. Peters https://doi.org/10.18758/71021031

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Short summary
This paper introduces the formaldehyde (HCHO) tropospheric vertical column retrieval algorithm implemented in the TROPOMI/Sentinel-5 Precursor operational processor, and comprehensively describes its various retrieval steps. Furthermore, algorithmic improvements developed in the framework of the EU FP7-project QA4ECV are described for future updates of the processor. Detailed error estimates are discussed in the light of Copernicus user requirements and needs for validation are highlighted.