Articles | Volume 16, issue 10
Nat. Hazards Earth Syst. Sci., 16, 2235–2246, 2016

Special issue: Natural hazard event analyses for risk reduction and...

Nat. Hazards Earth Syst. Sci., 16, 2235–2246, 2016

Review article 10 Oct 2016

Review article | 10 Oct 2016

The Bosna River floods in May 2014

Andrej Vidmar1, Lidija Globevnik1, Maja Koprivšek1, Matej Sečnik1, Katarina Zabret1, Blažo Đurović2,a, Darko Anzeljc2,a, Janez Kastelic3, Mira Kobold3, Mojca Sušnik3, Darko Borojevič4, Tarik Kupusović5, Esena Kupusović6, Anja Vihar1, and Mitja Brilly1 Andrej Vidmar et al.
  • 1Faculty of Civil and Geodetic Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia
  • 2Institute for Water of the Republic of Slovenia, 1000 Ljubljana, Slovenia
  • 3Slovenian Environment Agency, 1000 Ljubljana, Slovenia
  • 4RHMZ RS, 78000 Banja Luka, Bosnia and Herzegovina
  • 5HEIS, 71000 Sarajevo, Bosnia and Herzegovina
  • 6FHMZ FBiH, 71000 Sarajevo, Bosnia and Herzegovina
  • anow at: The Slovenian Water Agency, 1000 Ljubljana, Slovenia

Abstract. In May 2014, extreme floods occurred in the lower Sava River basin, causing major damage, with catastrophic consequences. Based on the data gathered, the weather situation in Bosnia and Herzegovina's (BiH) Bosna River basin was analysed and the hydrological conditions were provided, including the results of the probability analysis of the size of the recorded precipitation and flow rates. According to the observed data, extremely high precipitation intensities produced specific discharges of 1.0 m3 s−1 km−2. A hydrological model of the Bosna River basin was developed using HBV light for the purposes of reconstructing and forecasting such events more effectively. All analyses confirmed that the May 2014 event was an extreme extraordinary event whose return period greatly exceeds 100 years. The study is the basis for further flood safety measures and flood forecast development in the Bosna River basin.

Short summary
Devastating floods are a rare and unique phenomenon that prompts an in-depth hydrological analysis. The paper addresses the May 2014 flooding of the Bosna River. In May 2014, flooding occurred as a consequence of precipitation that continuously fell for several days over the Sava River and its lower reach tributaries in the territories of Croatia, Bosnia and Herzegovina, and Serbia. The precipitation in some places exceeded a 5000-year return period and discharges a 100-year return period.
Final-revised paper