20.500.12556/RUL-133437 Investigation of spatial and temporal variability of hydrological drought in Slovenia using the Standardised Streamflow Index (SSI) Drought is a complex phenomenon with high spatial and temporal variability. Water scarcity has become a growing problem in Slovenia in recent decades. Therefore, the spatial and temporal variability of hydrological drought was investigated in this study by analysing the Standardized Streamflow Index (SSI). Monthly discharge data series from 46 gauging stations for the period 1961–2016 were used to calculate SSI values at five different time scales (1, 3, 6, 12, and 24 months). The results indicate that the frequency and intensity of droughts in Slovenia has increased in recent decades at most of the analysed gauging stations and at all time scales considered. Spring and summer periods were identified as critical in terms of water deficit. SSI values vary independently from the location of the gauging station, confirming that drought is a regional phenomenon, even in a small country such as Slovenia. However, SSI values vary considerably depending on the time scale chosen. This was also confirmed by the results of the hierarchical clustering of the number of extreme droughts, as various time scales resulted in a different distribution of gauging stations by individual groups. hydrological drought Standardised Streamflow Index SSI hierarchical clustering seasonality hidrološka suša standardizirani indeks pretoka SSI hierarhično razvrščanje sezonskost true false true Angleški jezik Slovenski jezik Članek v reviji 2021-11-26 14:59:37 2021-11-26 14:59:40 2022-09-13 03:50:49 0000-00-00 00:00:00 2021 0 0 15 str. iss. 22, art. 3197 Vol. 13 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 556 2073-4441 10.3390/w13223197 85603331 RAZ_Zalokar_Lenka_2021.pdf RAZ_Zalokar_Lenka_2021.pdf 1 F19B2C5D4EE04061ECC6E3B7844C70BB e03ad527b76721ac48b06516eec38f8470507306a443fc434a20a585b67b3dc8 4cb3dcca-4ec1-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151518 https://www.mdpi.com/2073-4441/13/22/3197 0 60c8e7e2-4ec1-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151519 Fakulteta za gradbeništvo in geodezijo 0 0 0