Journal Article

The evolution of process-based hydrologic models: historical challenges and the collective quest for physical realism

Uijlenhoet, Remko, Cai, Xitian, Woods, Ross A., Wood, Andrew W., Pauwels, Valentijn R. N., Samaniego, Luis, Clark, Martyn P., Peters-Lidard, Christa D., Bennett, Katrina E., Bierkens, Marc F. P.

2017

Overview

The diversity in hydrologic models has historically led to great controversy on the correct approach to process-based hydrologic modeling, with debates centered on the adequacy of process parameterizations, data limitations and uncertainty, and computational constraints on model analysis. In this paper, we revisit key modeling challenges on requirements to (1) define suitable model equations, (2) define adequate model parameters, and (3) cope with limitations in computing power. We outline the historical modeling challenges, provide examples of modeling advances that address these challenges, and define outstanding research needs. We illustrate how modeling advances have been made by groups using models of different type and complexity, and we argue for the need to more effectively use our diversity of modeling approaches in order to advance our collective quest for physically realistic hydrologic models.

• Publisher: Copernicus GmbH,European Geosciences Union (EGU),Copernicus Publications
• Subject: Adequacy / Complexity / Computer applications / Constraint modelling / Earth Sciences / ENVIRONMENTAL SCIENCES / Evolution / Hydraulic flow / Hydrologic models / Hydrologic processes / Hydrologie en Kwantitatief Waterbeheer / Hydrology / Hydrology and Quantitative Water Management / Leerstoelgroep Hydrologie en kwantitatief waterbeheer / Mathematical models / Modelling / Realism / Runoff / WIMEK