Version 1.0 released · 1.1 in development
MERIT Hydro · 90 m
Global, on the native 3 arc-second grid. Built from MERIT DEM and MERIT Hydro (Yamazaki et al., 2017, 2019).
FullBasin
Version 1.0 released
HydroSHEDS v2 · 30 m
North America and South America, on the native 1 arc-second grid, one continent at a time. The basin and region masks are out; the per-pixel layers follow. Built from HydroSHEDS v2 (Lehner et al., 2022).
What is out on each grid
| What you can get | MERIT Hydro · 90 m | HydroSHEDS v2 · 30 m |
|---|---|---|
| Where it covers | the MERIT Hydro land mask, without gaps | the HydroSHEDS v2 extents released so far: North America (with the Arctic drainage) and South America |
| Which basin a pixel belongs to, and its outlet | Out | Out |
| The flow path from a pixel down to that outlet | Out | Not computed yet |
| What drains into a pixel | Out | Not computed yet |
| What the upstream land is like | Out | Not computed yet |
| How the grid is cut into regions | Out | Out |
| Release these pages describe | 1.1, in development | 1.0 |
| Files and DOI | version 1.0, 142.2 GB in 100 files, 10.5281/zenodo.20344113; the 1.1 archive is being prepared | version 1.0, on its downloads page |
The 30 m build has the basin and region masks for the two continents HydroSHEDS v2 has released; the per-pixel layers follow, and the other continents follow HydroSHEDS.
FullRiver
Coming soon
The river channels
Where each channel runs, how the reaches connect, and what flows through them. Planned on both grids, like FullBasin.
