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Rainfall-runoff modeling of the nested non-homogeneous Sava river sub-catchments in Slovenia
Lavtar, Katarina (Author), Bezak, Nejc (Author), Šraj, Mojca (Author)

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Abstract
Rainfall-runoff modeling is nowadays applied for water resources management, water system design, real-time forecasting, flood design and can be carried out by using different types of hydrological models. In this study, we focused on lumped conceptual hydrological models and their performance in diverse sub-catchments of the Sava River in Slovenia, related to their size and non-homogeneity. We evaluated the difference between modeled and measured discharges of selected discharge gauging stations, using different model performance criteria that are usually applied in hydrology, connecting the results to geospatial analysis of geological and hydrogeological characteristics, land use, runoff potential, proportion of agglomeration and various meteorological variables. Better model performance was obtained for catchments with a higher runoff potential and with less variations in meteorological variables. Regarding the number of used parameters, the results indicated that the tested Genie Rural 6-parameter Journalier (GR6J) model with 6 parameters performed better than the Genie Rural 4-parameter Journalier (GR4J) model with 4 parameters, especially in the case of larger sub-catchments. These results illustrate the comprehensive nature of lumped models. Thus, they yield good performance in case of the catchments with indistinguishable characteristics

Language:English
Keywords:hydrological modeling, rainfall-runoff, lumped conceptual model, model efficiency criteria, non-homogeneous catchment, Sava river
Work type:Scientific work (r2)
Tipology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2020
Number of pages:Str. 1-13
Numbering:Letn. 12, št. 1, 128
UDC:556.5(497.4)
ISSN on article:2073-4441
COBISS.SI-ID:9010273 This link opens in a new window
Views:387
Downloads:284
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Record is a part of a journal

Title:Water
Shortened title:Water
Publisher:MDPI
ISSN:2073-4441
COBISS.SI-ID:36731653 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J7-8273
Name:Prepoznavanje potencialno nevarnih hudourniških vršajev z metodami geomorfometrije in simulacijami nastanka vršajev.

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:14.02.2020

Secondary language

Language:Slovenian
Keywords:hidrološko modeliranje, padavine, odtok, enoviti konceptualni modeli, ustreznost modelov, nehomogena porečja, Sava

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