Professional paper

Trend analysis of the Bednja river flow using the IPTA method

Bojan Đurin ; Sveučilište Sjever, Odjel za graditeljstvo Jurja Križanića 31b, Varaždin, Hrvatska
Mirna Raič ; Sveučilište u Mostaru Fakultet građevinarstva, arhitekture i geodezije Matice hrvatske b. b., Mostar, Bosna i Hercegovina
Petra Sušilović ; Sveučilište u Mostaru Fakultet građevinarstva, arhitekture i geodezije Matice hrvatske b. b., Mostar, Bosna i Hercegovina
Magdalena Drožđan ; Univerza v Mariboru Fakultet za gradbeništvo, prometno inženirstvo in arhitekturo Smetanova ulica, Center 17,Maribor, Slovenija
Ivana Pintarić ; Univerza v Mariboru Fakultet za gradbeništvo, prometno inženirstvo in arhitekturo, Smetanova ulica, Center 17,Maribor, Slovenija

Abstract

In most cases, analysing hydrological data is related to the definition of a linear trend and its adequate interpretation. Although not complex, the unreliability of this analysis frequently used in hydrology may pose a problem at low values of the coefficient of determination R. Inaccurate conclusions may lead to poor assessments during the sizing of hydrotechnical facilities. The impact of climate change additionally contributes to this challenge. The paper will present a methodology for determining homogeneity and isotropy of analysed data with the aim of determining the unreliability level of obtained linear trends. To this end, the Innovative Polygon Trend Analysis (IPTA) method will be applied to the Bednja River in the Republic of Croatia by analysing a series of average daily flows in the duration of twenty years at the gauging station Ludbreg.

Keywords

linear trend, homogeneity, isotropy, IPTA, Bednja River

Hrčak ID:

317958

URI

https://hrcak.srce.hr/317958

Publication date:

31.12.2023.

Article data in other languages: croatian german

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