Analysis of changes of maximum flood characteristics on the Danube River in Bratislava station

Year, pages: 2016, 215 - 223

This paper is focused on evaluation of annual maximum discharges and relevant flood waves. In this paper the gauge station Danube: Bratislava with the long series of observations (1876–2013) was selected. For further analysis, the given period was divided into two sub-periods lasting 1876–1945 and 1946–2013. We processed the flood waves of 5, 11, 15 and 21 days duration for each maximum annual discharge Qmax. We evaluated the trend in volumes of flood waves, lasting 5, 11, 15 and 21 days for the whole period 1876–2013. The results show no significant, neither increasing nor decreasing, trend in flood wave volumes. We analysed the hydrographs of the median (50th percentile) of the 138 Qmax waves with duration of 21 days in two different periods 1876–1945, and 1946–2013. Flood wave magnitudes (as well as rise- and fall- rate) are higher in the recent period in the case 10th (high flow pulses) and 50th percentiles (small floods), but volume of the waves is the same in both periods. In the case of the 99th percentiles (large floods), there are no changes.

Pekárová, P., Halmová, D., Mitková, V. 2016. Analysis of changes of maximum flood characteristics on the Danube River in Bratislava station. In Acta Hydrologica Slovaca, vol. 17, no.2, pp. 215-223. 2644-4690.

Pekárová, P., Halmová, D., Mitková, V. (2016). Analysis of changes of maximum flood characteristics on the Danube River in Bratislava station. Acta Hydrologica Slovaca, 17(2), 215-223. 2644-4690.