CCI+P HCHO tropospheric column L3 data from TROPOMI, v2

TROPOMI level-3 gridded tropospheric HCHO column, version 2.

Monthly grids at spatial resolution of 0.125°x0.125°. Daily grids at spatial resolution of 0.25°x0.25°.

Based on the TROPOMI Level 2 Formaldehyde Total Column product created for the ESA CCI (European Space Agency Climate Change Initiative) Precursors for aerosols and ozone projet. https://climate.esa.int/en/projects/precursors-for-aerosols-and-ozone/.

Compare to the operational product, the air mass factors have been reprocessed using an update aldebo climatology, and the CAMS Reanalysis Model for the a priori vertical profiles. The background correction and the quality values have also been updated.

In addition to the main product results, such as HCHO slant column, vertical column and air mass factor, the level 3 data files contain several additional parameters and diagnostic information such as uncertainties, a priori profiles and averaging kernels.

Created for the ESA CCI ozone and aerosol precursors project.

Data and Resources

Tags

Cite this as (APA format)

De Smedt, I., Vlietinck, J., YU, H., Theys, N., Danckaert, T., & Van Roozendael, M. (2025). CCI+P HCHO tropospheric column L3 data from TROPOMI, v2 (Version 2) [Dataset]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/y591kda5

Users of this DOI are kindly encouraged to contact the author(s) for help and cooperation towards further successful utilisation.

Author(s)
Principal

De Smedt, Isabelleorcid, Royal Belgian Institute for Space Aeronomy
Other(s)

Vlietinck, Jonasorcid, Royal Belgian Institute for Space Aeronomy; YU, Huanorcid, Royal Belgian Institute for Space Aeronomy; Theys, Nicolasorcid, Royal Belgian Institute for Space Aeronomy; Danckaert, Thomasorcid, Royal Belgian Institute for Space Aeronomy; Van Roozendael, Michelorcid, Royal Belgian Institute for Space Aeronomy;

Contact data-contact of Royal Belgian Institute for Space Aeronomy

Technical info
Is referencing

De Smedt, I., Vlietinck, J., YU, H., Theys, N., Danckaert, T., & Van Roozendael, M. (2026). CCI+P HCHO tropospheric column L2 data from TROPOMI, v2 (Version 2) [Data set]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/ka4vjl7e
Documentation
Is derived from (sources,...)

  • (2020). TROPOMI Level 2 Formaldehyde [Data set]. In TROPOMI Level 2 Formaldehyde. European Space Agency. https://doi.org/10.5270/s5p-vg1i7t0

  • De Smedt, I., Theys, N., YU, H., Vlietinck, J., Danckaert, T., & Van Roozendael, M. (2024). ATM-MPC Operational HCHO tropospheric column L2 data from TROPOMI (NRT and OFFL products) (Version Collection 3) [Dataset]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/0i4fao8b

  • De Smedt, I., Vlietinck, J., YU, H., Theys, N., Danckaert, T., & Van Roozendael, M. (2026). CCI+P HCHO tropospheric column L2 data from TROPOMI, v2 (Version 2) [Data set]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/ka4vjl7e

Temporal features
Starting

07/05/2018
Ending

31/12/2024
Temporal resolution

P1M, P1D

Additional info
Funding details 
  https://climate.esa.int/en/projects/precursors-for-aerosols-and-ozone/
Conforms to

CF standard, HARP compliant
Repository homepage

https://data.aeronomie.be/dataset/
Last Updated

June 18, 2026
Created

April 24, 2025

Spatial features

Resolution (m): 0.125°x0.125°, 0.25°x0.25°