A multi-year global methane data set obtained by merging observations from TROPOMI and IASI

Shahzadi, Kanwal; Schneider, Matthias; Ying Lo, Nga; Hase, Frank; Meyer, Jörg; Cayoglu, Ugur; Borsdorff, Tobias; Martinez-Velarte, Mari C.

doi:10.5194/essd-18-2153-2026

Articles | Volume 18, issue 3

https://doi.org/10.5194/essd-18-2153-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-18-2153-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 3

Data description article

|

25 Mar 2026

Data description article |

| 25 Mar 2026

A multi-year global methane data set obtained by merging observations from TROPOMI and IASI

Kanwal Shahzadi, Matthias Schneider, Nga Ying Lo, Frank Hase, Jörg Meyer, Ugur Cayoglu, Tobias Borsdorff, and Mari C. Martinez-Velarte

Data sets

MUSICA IASI full retrieval product standard output (processing version 3.2.1) Matthias Schneider et al. https://doi.org/10.35097/408

MUSICA IASI/TROPOMI RemoTeC fused CH4 data set (version 4.1) K. Shahzadi et al. https://doi.org/10.35097/wq583rnzpmd83m5g

SRON S5P - RemoTeC scientific TROPOMI XCH4 dataset v19_446 A. Lorente et al. https://doi.org/10.5281/zenodo.7766558

Short summary

We merge TROPOMI and IASI L2 methane data from January 2018 to June 2021 on a global scale. The data merging yields total column-averaged and upper tropospheric/stratospheric partial column-averaged mole fractions (already provided by the individual data sets). In addition, it outputs tropospheric partial column-averaged mole fractions (not provided by any of the two individual data sets). We briefly document their increased potential for quantifying near-surface methane emissions.