Analysis of hydrological drought parameters in selected catchments of the southern and eastern Slovakia in the years 2003, 2012 and 2015

Year, pages: 2017, 135 - 144

Increased occurrence of extreme meteorological and hydrological phenomena is one of the expected impacts connected to climate change. The most pronounced droughts in the 21st Century hit Slovakia in 2003, 2011–2012 and 2015. The aim of the study was to estimate parameters of the hydrological drought in the Ipeľ and Rimava River catchments (S Slovakia) and the Torysa and Topľa River catchments (E Slovakia). The relationship between the meteorological and hydrological droughts occurrence and intensity was also studied. The evaluation of meteorological drought was based on SPI and SPEI calculation, hydrological drought was evaluated using the fixed threshold of Q80 in the Sequent Peak Algorithm methods. Weibull and GEV frequency distributions were used to calculate the return periods of minimum annual discharge values, drought period duration, deficit volume and intensity. The results showed that despite of quite close location of the evaluated catchments, there are differences in temporal and spatial manifestation of droughts in 2003, 2012 and 2015. The 2003 drought was the most pronounced in Rimava, Torysa and Topľa catchments, the 2012 drought in the Ipeľ catchment.

Fendeková, M., Danáčová, Z., Gauster, T., Labudová, L., Fendek, M., Horvát, O. 2017. Analysis of hydrological drought parameters in selected catchments of the southern and eastern Slovakia in the years 2003, 2012 and 2015. In Acta Hydrologica Slovaca, vol. 18, no.2, pp. 135-144. 2644-4690.

Fendeková, M., Danáčová, Z., Gauster, T., Labudová, L., Fendek, M., Horvát, O. (2017). Analysis of hydrological drought parameters in selected catchments of the southern and eastern Slovakia in the years 2003, 2012 and 2015. Acta Hydrologica Slovaca, 18(2), 135-144. 2644-4690.