EGU22-7110
https://doi.org/10.5194/egusphere-egu22-7110
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Determination of the appropriate baseflow separation method for gauging stations on the two lowland rivers in Croatia

Martina Lacko1, Kristina Potočki2, and Gordon Gilja3
Martina Lacko et al.
  • 1University of Zagreb, Faculty of Civil Engineering, Department of Hydroscience and Engineering, Zagreb, Croatia (martina.lacko@grad.unizg.hr)
  • 2University of Zagreb, Faculty of Civil Engineering, Department of Hydroscience and Engineering, Zagreb, Croatia (kristina.potocki@grad.unizg.hr)
  • 3University of Zagreb, Faculty of Civil Engineering, Department of Hydroscience and Engineering, Zagreb, Croatia (gordon.gilja@grad.unizg.hr)

The estimation of baseflow is one of the essential tasks in water resources management and hydrologic research to assess the impacts of climate change and to describe and predict flood events based on the flood hydrograph characteristics (peak flow, duration and volume). Several methods have been developed to separate baseflow from direct flow, and in recent years they have been automated through the use of available R packages. In this work R programming language packages “EcoHydRology” and “lfstat” were used to separate baseflow from direct flow on the historical daily discharge time series of the several gauging stations on the two large lowland rivers in Croatia: the Sava River and the Drava River. The aim of this study is to determine the appropriate baseflow separation method for gauging stations on Sava River and Drava River in order to evaluate the baseflow separation method for future multivariate analysis of flood events under the R3PEAT project (www.grad.hr/r3peat) that explores pier scour development next to the bridges crossing large rivers in Croatia with installed scour countermeasures.

How to cite: Lacko, M., Potočki, K., and Gilja, G.: Determination of the appropriate baseflow separation method for gauging stations on the two lowland rivers in Croatia, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-7110, https://doi.org/10.5194/egusphere-egu22-7110, 2022.