Differences in the long-term regimes of extreme floods using seasonality indices at Slovak Danube River tributaries

Rok, strany: 2020, 178 - 187

The issue of seasonality occurrence of hydrological, hydrogeological or meteorological phenomena and their regional expression has recently devoted increasing attention. The results of some analyses suggest that the seasonality of the selected hydrological characteristics is an important indicator of flood processes, but varies considerably in space. The seasonality of extreme flood events and, hence flood processes, tends to change with the flood magnitude. Investigation of changes in the rainfall-runoff regimes of rivers and its extremes has become more important especially in the context of ongoing and future climate changes. This paper deals with a statistical analysis of changes in the hydrological regime of Slovak tributaries of the Danube River at 11 stations and the main objective of this study is to find the seasonality indices. Monthly seasonality indices are analysed to interpret the long-term climatic behaviour, while the seasonality of extremes is analysed to understand flood occurrence. For the extreme events seasonality analyses we used the Burn index (1997), which shows the mean date and variability of occurrence of the extreme events.

ISO 690:

Halmová, D., Pekárová, P. 2020. Differences in the long-term regimes of extreme floods using seasonality indices at Slovak Danube River tributaries. In Acta Hydrologica Slovaca, vol. 21, no.2, pp. 178-187. 2644-4690. DOI: https://doi.org/10.31577/ahs-2020-0021.02.0022

APA:

Halmová, D., Pekárová, P. (2020). Differences in the long-term regimes of extreme floods using seasonality indices at Slovak Danube River tributaries. Acta Hydrologica Slovaca, 21(2), 178-187. 2644-4690. DOI: https://doi.org/10.31577/ahs-2020-0021.02.0022

Vydavateľ: Institute of Hydrology SAS, Dúbravská cesta 9, 841 05 Bratislava, Slovakia