A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic Studies

The accurate assessment of streamflow is crucial for operational water resource management projects. The aim of this study was to estimate the uncertainties in the surface runoff simulated by a monthly water balance model in a mountainous watershed of the Portaikos river, a tributary of the Pinios r...

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Main Authors: Lampros Vasiliades, Ioannis Mastraftsis
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Environmental Sciences Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4931/25/1/39
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author Lampros Vasiliades
Ioannis Mastraftsis
author_facet Lampros Vasiliades
Ioannis Mastraftsis
author_sort Lampros Vasiliades
collection DOAJ
description The accurate assessment of streamflow is crucial for operational water resource management projects. The aim of this study was to estimate the uncertainties in the surface runoff simulated by a monthly water balance model in a mountainous watershed of the Portaikos river, a tributary of the Pinios river, Thessaly, Greece. The University of Thessaly (UTHBAL) monthly water balance model was developed in the R statistical computing environment language, named ‘R-UTHBAL’, to estimate surface water balance in data-scarce watersheds. Two sources of uncertainties in hydrological modelling were considered: the uncertainties in input data estimation and in model parameters. The uncertainties were estimated with the use of the R-package ‘<i>hydroPSO</i>’, a global Particle Swarm Optimisation (PSO) algorithm for the calibration of environmental models. The R-UTHBAL was integrated with the <i>hydroPSO</i> algorithm and advanced sensitivity analyses, and user-friendly evaluation plots were estimated to facilitate the interpretation and assessment of the calibration results. Application of R-UTHBAL with the <i>hydroPSO</i> showed that the uncertainty in streamflow estimation should always be accounted for and evaluated in operational water resources management projects.
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spelling doaj.art-8cc327fa23824f5bbdaf1a3a7ed77f582023-11-18T10:19:29ZengMDPI AGEnvironmental Sciences Proceedings2673-49312023-03-012513910.3390/ECWS-7-14192A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic StudiesLampros Vasiliades0Ioannis Mastraftsis1Department of Civil Engineering, School of Engineering, University of Thessaly, Pedion Areos, 38334 Volos, GreeceDepartment of Civil Engineering, School of Engineering, University of Thessaly, Pedion Areos, 38334 Volos, GreeceThe accurate assessment of streamflow is crucial for operational water resource management projects. The aim of this study was to estimate the uncertainties in the surface runoff simulated by a monthly water balance model in a mountainous watershed of the Portaikos river, a tributary of the Pinios river, Thessaly, Greece. The University of Thessaly (UTHBAL) monthly water balance model was developed in the R statistical computing environment language, named ‘R-UTHBAL’, to estimate surface water balance in data-scarce watersheds. Two sources of uncertainties in hydrological modelling were considered: the uncertainties in input data estimation and in model parameters. The uncertainties were estimated with the use of the R-package ‘<i>hydroPSO</i>’, a global Particle Swarm Optimisation (PSO) algorithm for the calibration of environmental models. The R-UTHBAL was integrated with the <i>hydroPSO</i> algorithm and advanced sensitivity analyses, and user-friendly evaluation plots were estimated to facilitate the interpretation and assessment of the calibration results. Application of R-UTHBAL with the <i>hydroPSO</i> showed that the uncertainty in streamflow estimation should always be accounted for and evaluated in operational water resources management projects.https://www.mdpi.com/2673-4931/25/1/39water balance modelUTHBAL<i>hydroPSO</i>optimisationsensitivity analysisuncertainty analysis
spellingShingle Lampros Vasiliades
Ioannis Mastraftsis
A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic Studies
Environmental Sciences Proceedings
water balance model
UTHBAL
<i>hydroPSO</i>
optimisation
sensitivity analysis
uncertainty analysis
title A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic Studies
title_full A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic Studies
title_fullStr A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic Studies
title_full_unstemmed A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic Studies
title_short A Monthly Water Balance Model for Assessing Streamflow Uncertainty in Hydrologic Studies
title_sort monthly water balance model for assessing streamflow uncertainty in hydrologic studies
topic water balance model
UTHBAL
<i>hydroPSO</i>
optimisation
sensitivity analysis
uncertainty analysis
url https://www.mdpi.com/2673-4931/25/1/39
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AT ioannismastraftsis amonthlywaterbalancemodelforassessingstreamflowuncertaintyinhydrologicstudies
AT lamprosvasiliades monthlywaterbalancemodelforassessingstreamflowuncertaintyinhydrologicstudies
AT ioannismastraftsis monthlywaterbalancemodelforassessingstreamflowuncertaintyinhydrologicstudies