DOI: 10.11118/978-80-7509-831-3-0023

Analysis of hydrological drought for selection of recreation places at eastern Slovakia

Tatiana Soľáková, Pavol Purcz, Helena Hlavatá, Dorota Simonová, Hany F. Abd-Elhami

Hydrological drought is an isolated natural phenomenon whose severity may be intolerable for environment. Drought influence also possibilities for tourism and recreation. Tourists prefer places with water for recreation. Understanding drought past manifestations allows us to better understand its frequency and the extent of its influence on the territory. For this purpose, the current article presents Standardized Stream flow Index (SSI) computed in 12 months time scales for classification of hydrological drought episodes during the period from 1972 to 2014 in 7 water meter stations localized in the Eastern part of Slovakia. A one-dimensional frequency analysis of hydrological drought was performed in order to determine the historical extreme episode of drought and average inter-arrival time of next one episode. The results show that the occurrence of drought extreme episodes will be more frequent in the Bodva sub-catchment. In the Dunajec and Poprad sub-catchment, extreme droughts can be expexted rarely. The most serious decade can be considered the period from 1982 to 1992, where in almost every monitored station a hydrological drought was recorded, the exception was only at the Bardejov station.

Keywords: hydrological drought analysis, Standardized Stream flow Index, extreme episode, inter-arrival time, Eastern Slovakia

pages: 23-30, Published: 2022, online: 2022