Towards Parameter Estimation in Global Hydrological Models

The provided elementary effects are used in the publication  J. Kupzig, R. Reinecke, F. Pianosi, M.Flörke and T. Wagener: Towards Parameter Estimation in Global Hydrological Models (submitted to Environmental Research Letters in Feb 2023).

In a large sample study, the Morris Method (Morris 1991) application produces the provided elementary effects using a new lightweight version of the global hydrological model WaterGAP3: WaterGAPLite.

• elementary_effects.zip : elementary effects for all 50 trajectories and all basins (each trajectory is the result of 18 model runs; used bounds of parameters can be found in the Supplement of the manuscript)
• results_overview.xlsx: parameter ranks for each basin and different evaluation criteria based on the elementary effects.
• MC_Sample.csv: normalized parameter samples of the additional Monte-Carlo Simulation (used bounds of parameters are the same as for the Morris method)
• MC_NSE.csv: resulting NSE values of the Monte-Carlo simulation
• better_performing_basins.csv: list of basins (using GRDC no.) where minimal NSE is greater than -1 within all Monte-Carlo runs
• standard_calib.csv: calibrated gamma value for each basin and corresponding evaluation criteria, using the standard calibration for WaterGAP3 (fit to mean discharge)
• standard_calib_mod.csv: calibrated gamma value for each basin and corresponding evaluation criteria, using a modified version of the standard calibration for WaterGAP3 (maximizing the NSE)