MERIT Hydro · 90 m
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Source grid  MERIT Hydro, 3 arc-seconds, global, 432,000 x 174,000 pixels, WGS 84
             Yamazaki et al. (2019), https://doi.org/10.1029/2019WR024873
             dir, elv and the other source layers:
             https://global-hydrodynamics.github.io/MERIT_Hydro/
             Independent of the MERIT Hydro project: not an official MERIT Hydro product.