Articles | Volume 18, issue 3
https://doi.org/10.5194/gmd-18-863-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-18-863-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Satellite-based modeling of wetland methane emissions on a global scale (SatWetCH4 1.0)
Juliette Bernard
CORRESPONDING AUTHOR
Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France
LERMA, Paris Observatory, CNRS, PSL, Paris, France
Elodie Salmon
Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France
Marielle Saunois
Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France
Shushi Peng
College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
Penélope Serrano-Ortiz
Department of Ecology, Andalusian Institute for Earth System Research (CEAMA‐IISTA), University of Granada, Granada, Spain
Antoine Berchet
Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France
Palingamoorthy Gnanamoorthy
CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, China
Coastal Systems Research, M. S. Swaminathan Research Foundation, Chennai, India
Joachim Jansen
Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
Philippe Ciais
Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France
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Cited
10 citations as recorded by crossref.
- Spatiotemporal patterns of methane fluxes across alpine permafrost region on the Tibetan Plateau L. Huang et al. https://doi.org/10.1038/s41467-025-62699-6
- Optimized wetland rewetting strategies can control methane, carbon dioxide, and oxygen responses to water table fluctuations B. Zhao et al. https://doi.org/10.1038/s43247-025-03163-7
- CH4 emissions from Northern Europe wetlands: compared data assimilation approaches G. Monteil et al. https://doi.org/10.5194/acp-25-14251-2025
- Contrasting roles of ground, trees, ponds and grazing in carbon dioxide, methane and nitrous oxide fluxes of an African semi-arid savanna A. Wieckowski et al. https://doi.org/10.1016/j.agee.2025.110199
- Leveraging TROPOMI observations and WRF-GHG modeling towards improving methane emission assessments in India T. Mathew et al. https://doi.org/10.5194/acp-26-4453-2026
- A global dataset of δ13C-CH4 source signatures and associated uncertainties (1998–2022), with a sensitivity analysis to support isotopic inversions E. Tapin et al. https://doi.org/10.5194/essd-18-4793-2026
- Machine-learning-based estimates of global natural vegetated wetland methane emissions (2000–2025) M. Li et al. https://doi.org/10.5194/essd-18-3507-2026
- Exploring the potential of using L-band InSAR for mapping flooded vegetation in tropical wetlands C. Hübinger et al. https://doi.org/10.1016/j.rse.2025.115086
- A top-down evaluation of bottom-up estimates to reduce uncertainty in methane emissions from Arctic wetlands L. Basso et al. https://doi.org/10.5194/bg-23-2815-2026
- Greenhouse gas flux measurements in wetlands D. Bastviken et al. https://doi.org/10.1016/j.oneear.2026.101743
10 citations as recorded by crossref.
- Spatiotemporal patterns of methane fluxes across alpine permafrost region on the Tibetan Plateau L. Huang et al. https://doi.org/10.1038/s41467-025-62699-6
- Optimized wetland rewetting strategies can control methane, carbon dioxide, and oxygen responses to water table fluctuations B. Zhao et al. https://doi.org/10.1038/s43247-025-03163-7
- CH4 emissions from Northern Europe wetlands: compared data assimilation approaches G. Monteil et al. https://doi.org/10.5194/acp-25-14251-2025
- Contrasting roles of ground, trees, ponds and grazing in carbon dioxide, methane and nitrous oxide fluxes of an African semi-arid savanna A. Wieckowski et al. https://doi.org/10.1016/j.agee.2025.110199
- Leveraging TROPOMI observations and WRF-GHG modeling towards improving methane emission assessments in India T. Mathew et al. https://doi.org/10.5194/acp-26-4453-2026
- A global dataset of δ13C-CH4 source signatures and associated uncertainties (1998–2022), with a sensitivity analysis to support isotopic inversions E. Tapin et al. https://doi.org/10.5194/essd-18-4793-2026
- Machine-learning-based estimates of global natural vegetated wetland methane emissions (2000–2025) M. Li et al. https://doi.org/10.5194/essd-18-3507-2026
- Exploring the potential of using L-band InSAR for mapping flooded vegetation in tropical wetlands C. Hübinger et al. https://doi.org/10.1016/j.rse.2025.115086
- A top-down evaluation of bottom-up estimates to reduce uncertainty in methane emissions from Arctic wetlands L. Basso et al. https://doi.org/10.5194/bg-23-2815-2026
- Greenhouse gas flux measurements in wetlands D. Bastviken et al. https://doi.org/10.1016/j.oneear.2026.101743
Saved (final revised paper)
Latest update: 22 Sep 2026
Short summary
Despite their importance, uncertainties remain in the evaluation of the drivers of temporal variability of methane emissions from wetlands on a global scale. Here, a simplified global model is developed, taking advantage of advances in remote-sensing data and in situ observations. The model reproduces the large spatial and temporal patterns of emissions, albeit with limitations in the tropics due to data scarcity. This model, while simple, can provide valuable insights into sensitivity analyses.
Despite their importance, uncertainties remain in the evaluation of the drivers of temporal...