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Article

The Role of Hydrological Signatures in Calibration of Conceptual Hydrological Model

1
Department of Hydrology, T. G. Masaryk Water Research Institute, Podbabska 2582/30, 160 00 Prague 6, Czech Republic
2
Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague-Suchdol, Czech Republic
*
Author to whom correspondence should be addressed.
Water 2020, 12(12), 3401; https://doi.org/10.3390/w12123401
Received: 19 October 2020 / Revised: 27 November 2020 / Accepted: 28 November 2020 / Published: 3 December 2020
(This article belongs to the Section Hydrology and Hydrogeology)
Determining an optimal calibration strategy for hydrological models is essential for a robust and accurate water balance assessment, in particular, for catchments with limited observed data. In the present study, the hydrological model Bilan was used to simulate hydrological balance for 20 catchments throughout the Czech Republic during the period 1981–2016. Calibration strategies utilizing observed runoff and estimated soil moisture time series were compared with those using only long-term statistics (signatures) of runoff and soil moisture as well as a combination of signatures and time series. Calibration strategies were evaluated considering the goodness-of-fit, the bias in flow duration curve and runoff signatures and uncertainty of the Bilan model. Results indicate that the expert calibration and calibration with observed runoff time series are, in general, preferred. On the other hand, we show that, in many cases, the extension of the calibration criteria to also include runoff or soil moisture signatures is beneficial, particularly for decreasing the uncertainty in parameters of the hydrological model. Moreover, in many cases, fitting the model with hydrological signatures only provides a comparable fit to that of the calibration strategies employing runoff time series. View Full-Text
Keywords: hydrological model; model calibration; model validation; hydrological balance; soil moisture; ungauged catchments hydrological model; model calibration; model validation; hydrological balance; soil moisture; ungauged catchments
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MDPI and ACS Style

Melišová, E.; Vizina, A.; Staponites, L.R.; Hanel, M. The Role of Hydrological Signatures in Calibration of Conceptual Hydrological Model. Water 2020, 12, 3401. https://doi.org/10.3390/w12123401

AMA Style

Melišová E, Vizina A, Staponites LR, Hanel M. The Role of Hydrological Signatures in Calibration of Conceptual Hydrological Model. Water. 2020; 12(12):3401. https://doi.org/10.3390/w12123401

Chicago/Turabian Style

Melišová, Eva; Vizina, Adam; Staponites, Linda R.; Hanel, Martin. 2020. "The Role of Hydrological Signatures in Calibration of Conceptual Hydrological Model" Water 12, no. 12: 3401. https://doi.org/10.3390/w12123401

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