This new layer shows a distribution of wetland that covers the tropics and sub tropics, excluding small islands. It was mapped in 236 meters spatial resolution by combining a hydrological model and annual time series of satellite-derived estimates of soil moisture to represent water flow and surface wetness that are then combined with geomorphological data. The dataset consist of 6 classes that covers: Fen, Bog-ombrotrophic peat domes, Riverine, Mangrove, Flood-out, Floodplain, Swamp and Marsh.

Interactive map of the World wetlands (Click on the top left of the map for more info).