The present dataset includes model-based runoff data for each of the 896 catchments with a surface area > 5 km2 draining into the coastal zone of Northwestern Patagonia (41-46°S). The data were generated using the Variable Infiltration Capacity (VIC) model. VIC is a semi-distributed, physically based hydrological model that simulates snow accumulation and melt, evapotranspiration, canopy interception, surface runoff, baseflow and other hydrological processes at sub-daily time steps. The model was forced with gridded meteorological data from PMET-sim and ERA5-Land for the period 1980-2020. The VIC model was calibrated (1985-2004) and validated (2005-2020) in 43 catchments using a split-sample approach. The calibration was performed using the Shuffled Complex Evolution algorithm included in the SPOTPY framework. The modelling approach achieved adequate performance of hydrological fluxes with modified Kling-Gupta efficiencies of 0.76 ± 0.09 and 0.71 ± 0.07 in the calibration and validation phases (daily timestep), respectively.

The file details are as follows

- basins_NP_metadata.csv: basin attributes including basin ID, area (in km2), name, location, mean elevation and climate attributes.
- basins_NP_shapefile.zip: Zip file containing the shp file of all basins in the study area ()
- basins_NP_historical_runoff.csv: Daily time series of runoff data (in m3/s). Each column in the .csv file represents a basin.