Extended Data Fig. 8: Global patterns of surface water connectivity and surface water area in river–floodplain systems across different inundation conditions over the past four decades.
From: Global net increase in surface water connectivity in river–floodplain systems
a-e, The reach-level surface water connectivity during flood, wet, normal, dry, and extremely dry conditions are calculated based on the binary images from five thresholds of the GSWO dataset (that is, GSWO ≥ 1%, 25%, 50%, 75%, 95%). f-j, The basin-level surface water area within the river–floodplains under different inundation conditions. Regions shaded in dark gray denote areas with insufficient satellite coverage during earlier observation periods, while light gray regions indicate areas where no rivers were detected by 30-m resolution Landsat imagery. Basemaps from Natural Earth (https://www.naturalearthdata.com) with global basin (level-3) data from the HydroBASINS dataset82.
