<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Detailed analyses of hydrological data are necessary in order to examine changes in their character. This article focuses on an analysis of the average monthly discharges of 14 stage-discharge gauging stations in Slovakia. The measured period is from 1931 to 2016. The approaches used are hydrological exploration methods, which were created by hydrologists to describe the behaviour of hydrological time series. The methods are used to identify a change-point through an analysis of any residuals, Pettitt´s test, and an analysis of the relationship between the mean annual discharge deviations from the long-term annual discharge and the deviations of the average monthly discharge from the long-term average monthly discharge. A considerable number of change-points were identified in the 1970s and 1980s. The results of the analyses show changes in the hydrological regimes, but to confirm the accuracy of the outcomes, it is also necessary to examine other hydrological and meteorological elements such as, e.g., precipitation and the air temperature.</p></abstract>

Detailed analyses of hydrological data are necessary in order to examine changes in their character. This article focuses on an analysis of the average monthly discharges of 14 stage-discharge gauging stations in Slovakia. The measured period is from 1931 to 2016. The approaches used are hydrological exploration methods, which were created by hydrologists to describe the behaviour of hydrological time series. The methods are used to identify a change-point through an analysis of any residuals, Pettitt´s test, and an analysis of the relationship between the mean annual discharge deviations from the long-term annual discharge and the deviations of the average monthly discharge from the long-term average monthly discharge. A considerable number of change-points were identified in the 1970s and 1980s. The results of the analyses show changes in the hydrological regimes, but to confirm the accuracy of the outcomes, it is also necessary to examine other hydrological and meteorological elements such as, e.g., precipitation and the air temperature.

Analyses of Monthly Discharges in Slovakia Using Hydrological Exploratory Methods and Statistical Methods

Dept. of Land and Water Resources Management

Dept. of Mathematics and Descriptive Geometry

Slovak Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Detailed analyses of hydrological data are necessary in order to examine changes in their character. This article focuses on an analysis of the average monthly...

Analyses of Monthly Discharges in Slovakia Using Hydrological Exploratory Methods and Statistical Methods

Published Online: Jul 02, 2019

Page range: 36 - 43

DOI: https://doi.org/10.2478/sjce-2019-0014

Keywords
Monthlydischarge, Hydrological exploratory methods, Change-point

© 2019 Mária Ďurigová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Analyses of Monthly Discharges in Slovakia Using Hydrological Exploratory Methods and Statistical Methods

Published Online: Jul 02, 2019

Page range: 36 - 43

DOI: https://doi.org/10.2478/sjce-2019-0014

KeywordsMonthlydischarge, Hydrological exploratory methods, Change-point

© 2019 Mária Ďurigová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Monthlydischarge, Hydrological exploratory methods, Change-point