Tropospheric Formaldehyde

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.

Compare to the operational product, the air mass factors have been reprocessed using an updated 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 columns, vertical columns and air mass factors, 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.

https://doi.org/10.18758/y591kda5

 CCIp v2 TROPOMI S5P tropospheric HCHO column number density clear 5Y 2019 2023 90 90 180 180

 

HCHO tropospheric column L3 data from TROPOMI, v1

TROPOMI level-3 gridded tropospheric HCHO column, version 1.

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

Based on the operational Copernicus Sentinel-5P (processed by ESA) TROPOMI Level 2 Formaldehyde Total Column product. Version 02.04.01, collection 3. European Space Agency.

The operational TROPOMI HCHO L2 product can be found on the Copernicus Data Space Ecosystem

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

https://doi.org/10.18758/2imqez32

 

HCHO 25P Amazon Africa 2018 2022 JASO tweet

 

Publications

De Smedt, I., Theys, N., Yu, H., Danckaert, T., Lerot, C., Compernolle, S., Van Roozendael, M., Richter, A., Hilboll, A., Peters, E., Pedergnana, M., Loyola, D., Beirle, S., Wagner, T., Eskes, H., van Geffen, J., Boersma, K. F., and Veefkind, P.: Algorithm theoretical baseline for formaldehyde retrievals from S5P TROPOMI and from the QA4ECV project, Atmos. Meas. Tech., 11, 2395–2426, https://doi.org/10.5194/amt-11-2395-2018, 2018.
 
De Smedt, I., Pinardi, G., Vigouroux, C., Compernolle, S., Bais, A., Benavent, N., Boersma, F., Chan, K.-L., Donner, S., Eichmann, K.-U., Hedelt, P., Hendrick, F., Irie, H., Kumar, V., Lambert, J.-C., Langerock, B., Lerot, C., Liu, C., Loyola, D., Piters, A., Richter, A., Rivera Cárdenas, C., Romahn, F., Ryan, R. G., Sinha, V., Theys, N., Vlietinck, J., Wagner, T., Wang, T., Yu, H., and Van Roozendael, M.: Comparative assessment of TROPOMI and OMI formaldehyde observations and validation against MAX-DOAS network column measurements, Atmos. Chem. Phys., 21, 12561–12593, https://doi.org/10.5194/acp-21-12561-2021, 2021.