The Global Inundation Extent from Multi-Satellites-MethaneCentric (GIEMS-MC) provides two harmonized times series maps at 0.25°x0.25° and monthly time step of wetland surfaces from 1992 to 2020: one representing inundated and saturated wetlands, and the other covering all wetlands, including peatlands. In addition, GIEMS-MC provides consistent 0.25°x0.25° maps of rice paddies (from MIRCA2000) and open permanent water categories (from GLWDv2) used in its production. Information on the dominant vegetation type and wetland type per pixel is also provided. GIEMS-MC v1.0 is the draft version used in the preprint paper [prepint] Bernard, J., Prigent, C., Jimenez, C., Fluet-Chouinard, E., Lehner, B., Salmon, E., Ciais, P., Zhang, Z., Peng, S., and Saunois, M.: The GIEMS-MethaneCentric database: a dynamic and comprehensive global product of methane-emitting aquatic areas, Copernicus GmbH, https://doi.org/10.5194/essd-2024-466, 2024. Please refer to the newer dataset version following peer review : https://doi.org/10.5281/zenodo.13919644.