MERIT Hydro · 90 m
==================

Products computed on the MERIT Hydro flow directions.

Grid        one global grid, 432,000 x 174,000 pixels at 3 arc-seconds,
            WGS 84 (EPSG:4326)
Source      MERIT Hydro (Yamazaki et al., 2019, https://doi.org/10.1029/2019WR024873)
            on MERIT DEM (Yamazaki et al., 2017, https://doi.org/10.1002/2017GL072874)
            Register on https://global-hydrodynamics.github.io/MERIT_Hydro/
            (CC BY-NC 4.0 / ODbL) and cite Yamazaki et al. (2019).
            The MERIT Hydro layers themselves (dir, elv, upa, upg, wth, hnd)
            are not redistributed here.

Tools with products here
  flowdivide/   v1.0, v1.1
  flowtopo/     v1.0 (on Zenodo), v1.1 (in preparation)
  flowmorph/    v1.0 (on Zenodo), v1.1 (in preparation)

Dataset paper  MERIT-FullBasin, ESSD discussion, https://doi.org/10.5194/essd-2026-402
Archive        version 1.0 on Zenodo, https://doi.org/10.5281/zenodo.20344113
               100 files, 142.2 GB, one zip per region, stored uncompressed so
               GDAL can read one file inside a zip without downloading it:

    export GDAL_HTTP_USERAGENT="your-tool/1.0"   # Zenodo answers 403 without one
    ZIP=/vsicurl/https://zenodo.org/api/records/20344113/files/region_00064.zip/content
    TIF=dfs_interval/dfs_in/dfs_in_region_00064_90m.tif
    gdallocationinfo -valonly "/vsizip/{$ZIP}/$TIF" 16200 13200

Every file of the dataset, with its size, is listed in Table 1 on
https://fullhydro.org/merit-90m/v1.1/fullbasin/#files