This is version 1.0, an earlier release, kept for the papers and datasets that cite it. The current release is version 1.1. When the paper is accepted, 1.1 takes its place here; this page and the Zenodo record stay, marked as superseded.
Before anything is computed per pixel, the land surface is divided. The basin mask assigns every one of the 22.26 billion land pixels to the outlet it drains to: 24,587,290 outlets, 24,577,574 of them outlets on the coast and 9,716 inland sinks, each with its drainage basin, from the Amazon down to single coastal pixels. The region mask groups whole basins into 96 regions, each small enough to process and to download on its own; no basin is cut by a region edge. These two masks are the first layers in the release, and every later step works one region at a time. Pick a region on the map for its FullBasin files, the MERIT Hydro 5°×5° tiles it was computed from, and its window on the global 90 m grid. The MERIT Hydro layers are not redistributed here; you obtain them from their own archive under their terms.
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Point your phone’s camera at the QR code, then tap the link that appears.
fullhydro.org