High-resolution US methane emissions inferred from an inversion of 2019 TROPOMI satellite data: contributions from individual states, urban areas, and landfills

Nesser, Hannah; Jacob, Daniel J.; Maasakkers, Joannes D.; Lorente, Alba; Chen, Zichong; Lu, Xiao; Shen, Lu; Qu, Zhen; Sulprizio, Melissa P.; Winter, Margaux; Ma, Shuang; Bloom, A. Anthony; Worden, John R.; Stavins, Robert N.; Randles, Cynthia A.

doi:https://doi.org/10.5194/acp-24-5069-2024

Articles | Volume 24, issue 8

https://doi.org/10.5194/acp-24-5069-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-5069-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 8

Research article

|

30 Apr 2024

Research article |

| 30 Apr 2024

High-resolution US methane emissions inferred from an inversion of 2019 TROPOMI satellite data: contributions from individual states, urban areas, and landfills

Hannah Nesser, Daniel J. Jacob, Joannes D. Maasakkers, Alba Lorente, Zichong Chen, Xiao Lu, Lu Shen, Zhen Qu, Melissa P. Sulprizio, Margaux Winter, Shuang Ma, A. Anthony Bloom, John R. Worden, Robert N. Stavins, and Cynthia A. Randles

Supplement

https://doi.org/10.5194/acp-24-5069-2024-supplement

Data sets

SRON S5P + RemoTeC scientific TROPOMI XCH4 dataset Alba Lorente et al. https://doi.org/10.5281/zenodo.4447228

hannahnesser/TROPOMI\_inversion: ACP\_10.5194\_2024 Hannah Nesser https://doi.org/10.5281/zenodo.10946769

Multi-laboratory compilation of atmospheric methane data for the period 1983-2020; obspack_ch4_1_GLOBALVIEWplus_v3.0_2021-05-07 Kenneth N. Schuldt et al. https://doi.org/10.25925/20210401

Model code and software

geoschem/geos-chem: GEOS-Chem 12.7.1 Developers of GEOS-Chem https://doi.org/10.5281/zenodo.3676008

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Short summary

We quantify 2019 methane emissions in the contiguous US (CONUS) at a ≈ 25 km × 25 km resolution using satellite methane observations. We find a 13 % upward correction to the 2023 US Environmental Protection Agency (EPA) Greenhouse Gas Emissions Inventory (GHGI) for 2019, with large corrections to individual states, urban areas, and landfills. This may present a challenge for US climate policies and goals, many of which target significant reductions in methane emissions.