Articles | Volume 25, issue 3
Hydrol. Earth Syst. Sci., 25, 1529–1568, 2021
https://doi.org/10.5194/hess-25-1529-2021
Hydrol. Earth Syst. Sci., 25, 1529–1568, 2021
https://doi.org/10.5194/hess-25-1529-2021

Research article 26 Mar 2021

Research article | 26 Mar 2021

Implications of model selection: a comparison of publicly available, conterminous US-extent hydrologic component estimates

Samuel Saxe et al.

Data sets

Collection of Hydrologic Models, Reanalysis Datasets, and Remote Sensing Products Aggregated by Ecoregion over the CONUS from 1900 to 2018 S. Saxe, W. Farmer, J. Driscoll, and T. Hogue https://doi.org/10.5066/P9588YM2

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Short summary
We compare simulated values from 47 models estimating surface water over the USA. Results show that model uncertainty is substantial over much of the conterminous USA and especially high in the west. Applying the studied models to a simple water accounting equation shows that model selection can significantly affect research results. This paper concludes that multimodel ensembles help to best represent uncertainty in conclusions and suggest targeted research efforts in arid regions.