To generate river runoff, the HD model was operated globally at 5 arc minutes (1/12°) horizontal resolution. First, the forcing data of surface and sub-surface runoff simulated by HydroPy were interpolated to the HD model grid. Then, daily discharges were simulated with the HD model. Note that the data arrays start at the North Pole, i.e. the grid origin is at the North pole and date line.
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Hagemann, Stefan (2025). Global ERA5-based high-resolution river runoff (Version 1). World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/HDERA5_v1