<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Several quite severe droughts occurred in Europe in the 21<sup>st</sup> century; three of them (2003, 2012 and 2015) hit also Slovakia. The Standardized Precipitation Index (SPI) and Standardized Precipitation and Evapotranspiration Index (SPEI) were used for assessment of meteorological drought occurrence. The research was established on discharge time series representing twelve river basins in Slovakia within the period 1981–2015. Sequent Peak Algorithm method based on fixed threshold, three parametric Weibull and generalized extreme values distribution GEV, factor and multiple regression analyses were employed to evaluate occurrence and parameters of hydrological drought in 2003, 2011–2012 and 2015, and the relationship among the water balance components. Results showed that drought parameters in evaluated river basins of Slovakia differed in respective years, most of the basins suffered more by 2003 and 2012 drought than by the 2015 one. Water balance components analysis for the entire period 1931–2016 showed that because of continuously increasing air temperature and balance evapotranspiration there is a decrease of runoff in the Slovak territory.</p></abstract>

Several quite severe droughts occurred in Europe in the 21st century; three of them (2003, 2012 and 2015) hit also Slovakia. The Standardized Precipitation Index (SPI) and Standardized Precipitation and Evapotranspiration Index (SPEI) were used for assessment of meteorological drought occurrence. The research was established on discharge time series representing twelve river basins in Slovakia within the period 1981–2015. Sequent Peak Algorithm method based on fixed threshold, three parametric Weibull and generalized extreme values distribution GEV, factor and multiple regression analyses were employed to evaluate occurrence and parameters of hydrological drought in 2003, 2011–2012 and 2015, and the relationship among the water balance components. Results showed that drought parameters in evaluated river basins of Slovakia differed in respective years, most of the basins suffered more by 2003 and 2012 drought than by the 2015 one. Water balance components analysis for the entire period 1931–2016 showed that because of continuously increasing air temperature and balance evapotranspiration there is a decrease of runoff in the Slovak territory.

Analysing 21st century meteorological and hydrological drought events in Slovakia

Department of Hydrogeology, Faculty of Natural Sciences

Institute of Applied Statistics and Computing

University of Natural Resources and Life Sciences

Institute of Hydrology, Slovak Academy of Sciences

Journal of Hydrology and Hydromechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Several quite severe droughts occurred in Europe in the 21st century; three of them (2003, 2012 and 2015) hit also Slovakia. The Standardized Precipitation...

Analysing 21st century meteorological and hydrological drought events in Slovakia

Pubblicato online: 29 ott 2018

Pagine: 393 - 403

Ricevuto: 21 lug 2017

Accettato: 02 gen 2018

DOI: https://doi.org/10.2478/johh-2018-0026

Parole chiave
Hydrological drought, Climatic conditions, River discharges, Probability distribution, Slovakia

© 2018 Miriam Fendeková et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Analysing 21st century meteorological and hydrological drought events in Slovakia

Pubblicato online: 29 ott 2018

Pagine: 393 - 403

Ricevuto: 21 lug 2017

Accettato: 02 gen 2018

DOI: https://doi.org/10.2478/johh-2018-0026

Parole chiaveHydrological drought, Climatic conditions, River discharges, Probability distribution, Slovakia

© 2018 Miriam Fendeková et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
Hydrological drought, Climatic conditions, River discharges, Probability distribution, Slovakia