Articles | Volume 18, issue 3
https://doi.org/10.5194/gmd-18-863-2025
https://doi.org/10.5194/gmd-18-863-2025
Model description paper
 | 
14 Feb 2025
Model description paper |  | 14 Feb 2025

Satellite-based modeling of wetland methane emissions on a global scale (SatWetCH4 1.0)

Juliette Bernard, Elodie Salmon, Marielle Saunois, Shushi Peng, Penélope Serrano-Ortiz, Antoine Berchet, Palingamoorthy Gnanamoorthy, Joachim Jansen, and Philippe Ciais

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The GIEMS-MethaneCentric database: a dynamic and comprehensive global product of methane-emitting aquatic areas
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Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-466,https://doi.org/10.5194/essd-2024-466, 2024
Revised manuscript accepted for ESSD
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Cited articles

Albuhaisi, Y. A. Y., Van Der Velde, Y., De Jeu, R., Zhang, Z., and Houweling, S.: High-Resolution Estimation of Methane Emissions from Boreal and Pan-Arctic Wetlands Using Advanced Satellite Data, Remote Sensing, 15, 3433, https://doi.org/10.3390/rs15133433, 2023. a, b, c, d, e, f, g, h
Baldocchi, D., Falge, E., Gu, L., Olson, R., Hollinger, D., Running, S., Anthoni, P., Bernhofer, C., Davis, K., Evans, R., Fuentes, J., Goldstein, A., Katul, G., Law, B., Lee, X., Malhi, Y., Meyers, T., Munger, W., Oechel, W., Paw, K. T., Pilegaard, K., Schmid, H. P., Valentini, R., Verma, S., Vesala, T., Wilson, K., and Wofsy, S.: FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem–Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities, B. Am. Meteorol. Soc., 82, 2415–2434, https://doi.org/10.1175/1520-0477(2001)082<2415:FANTTS>2.3.CO;2, 2001. a, b
Bernard, J.: Satellite-based modeling of wetland methane emissions on a global scale (SatWetCH4), Zenodo [code], https://doi.org/10.5281/zenodo.11204999, 2024. a
Bernard, J., Prigent, C., Jimenez, C., Frappart, F., Normandin, C., Zeiger, P., Xi, Y., and Peng, S.: Assessing the time variability of GIEMS-2 satellite-derived surface water extent over 30 years, Frontiers in Remote Sensing, 5, 1399234, https://doi.org/10.3389/frsen.2024.1399234, 2024a. a, b
Bernard, J., Prigent, C., Jimenez, C., Fluet-Chouinard, E., Lehner, B., Salmon, E., Ciais, P., Zhen, Z., Peng, S., and Saunois, M.: GIEMS-MethaneCentric (Version v1), Zenodo [data set], https://doi.org/10.5281/zenodo.13919645, 2024b. 
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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.
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