Lenka Zalokar (Avtor), Mira Kobold (Avtor), Mojca Šraj (Avtor)

Povzetek

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.

Ključne besede

hydrological drought;Standardised Streamflow Index;SSI;hierarchical clustering;seasonality;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
UDK: 556
COBISS: 85603331 Povezava se bo odprla v novem oknu
ISSN: 2073-4441
Št. ogledov: 289
Št. prenosov: 99
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: hidrološka suša;standardizirani indeks pretoka;SSI;hierarhično razvrščanje;sezonskost;
Vrsta dela (COBISS): Članek v reviji
Strani: [15] str.
Letnik: ǂLetn. ǂ13
Zvezek: ǂšt. ǂ22, art. 3197
Čas izdaje: 2021
DOI: 10.3390/w13223197
ID: 14031834