Basin details
Pick a basin on the map, click a row, or type an id.
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Based on HydroSHEDS v2 (Lehner et al., 2022), the 1 arc-second flow directions, about 30 m at the equator.
Step 0 of FullBasin on HydroSHEDS v2 30 m. The basin mask assigns every land pixel of North America to one of 30,077,037 basins, numbered by area: basin 1 is the largest. The region masks group whole basins into regions small enough to process on their own; there are four partitions of the same basins into regions: the HydroBASINS level-3 units (48 regions), and three capacity partitions of 160, 80 and 40 square degrees (106, 201 and 404 regions). A basin's own region is its level-3 one. The tables are the released tables with their own columns, every number the 30 m value; the basin table holds the 105,581 basins above 1 km², one row per basin in id order (continental_basin_id; global_basin_id is −9999 until a numbering across continents exists). The map draws the same basins and regions, simplified, every basin at every zoom.
Step 0 of FullBasin on HydroSHEDS v2 30 m. The basin mask assigns every land pixel of South America to one of 7,383,055 basins, numbered by area: basin 1 is the largest. The region masks group whole basins into regions small enough to process on their own; there are four partitions of the same basins into regions: the HydroBASINS level-3 units (33 regions), and three capacity partitions of 160, 80 and 40 square degrees (59, 99 and 213 regions). A basin's own region is its level-3 one. The tables are the released tables with their own columns, every number the 30 m value; the basin table holds the 38,510 basins above 1 km², one row per basin in id order (continental_basin_id; global_basin_id is −9999 until a numbering across continents exists). The map draws the same basins and regions, simplified, every basin at every zoom.
Loading the basin table…
Point your phone’s camera at the code, then tap the link that appears.
fullhydro.org