The Hydrological Discharge (HD) model (Vs. 5.2, Hagemann et al. 2023) was used to simulate daily discharge time series over the European domain at 1/12° horizontal resolution. Daily data of surface and subsurface runoff generated by the HydroPy were used to force the HD model. Here, we used HydroPy data forced by GSWP3 data from 1901-1978 (see respective dataset of this experiment), and then the simulated time series were continued by using HydroPy data forced by the WFDE5 dataset from 1979-2019 (see respective dataset of this experiment).