Articles | Volume 27, issue 5
Research article
06 Mar 2023
Research article |  | 06 Mar 2023

Hydrological objective functions and ensemble averaging with the Wasserstein distance

Jared C. Magyar and Malcolm Sambridge

Model code and software

The Wasserstein distance as a hydrological objective function J. Magyar

Short summary
Measuring the similarity of distributions of water is a useful tool for model calibration and assessment. We provide a new way of measuring this similarity for streamflow time series. It is derived from the concept of the amount of work required to rearrange one mass distribution into the other. We also use similar mathematical techniques for defining a type of average between water distributions.