Figure 1
Graphical representation of the landscape hydrological model used to identify wetlands using DEMs. The process involves slicing the original DEM (a) using a series of 2D planes that follow the mean topography of the spatial domain (see “Methods”). The intersection between the 2D plane and the original topography identifies all depressions below the 2D plane as wetlands (b). Differences in water levels resulting from wetland bathymetry are shown in blue shades. For each sliced topographic surface, we computed the emergent wetlandscape network by connecting a given pair of wetlands only if the gap distance (either C2C and P2P) was less or equal to a given threshold distance, \(D\).
